NdFeB rare earth magnet through the effective control of these two , the
price has stabilized, rational exploitation of rare earth minerals
effectively controlled, rare earth magnets on the gradual stabilization
of raw material production , the entire market in terms of stable raw
material prices , then NdFeB the price is relatively stable magnet
products , are now the Internet age , the price of the product is very
clear , when we are the same product quality , product price also
naturally transparent , just put a product on the web offer, the price
advantage is obvious, Therefore, product competitiveness by product ,
product competition by quality.
In the face of harsh competition in the market , the price of NdFeB magnets
are easily overshadowed by the market in the form of two years is also
not good , the development of magnet products to a white-hot stage ,
various manufacturers face the harsh production environment, had to be
the bottom of the price war , due to the limited production capacity of
the factory , just a simple product processing methods are without their
own unique product advantages , since a business to survive , the only
way is to use the price with service to maintain a manufacturer 's
survival, competition for orders. Conversely, if permanent magnet manufacturers
can fundamentally solve their own problems , breaking its own
production technical problems , breaking their own problems from product
quality advantages , * the initiative, when the quality of their
products and have an advantage on their own won the right to take the
initiative , in the face of customers , companies have sufficient right
to speak, not only to avoid price competition on the product , but also
firmly seize the customer demand for products , the long-term
cooperation and development.
Throughout the course of development
of enterprises , all based on technology-driven products to products
dominate the market in order to promote the development of enterprises
in the market , so when a company started a price war , rather than a
breakthrough product technology for the development of the time, so, the
development of enterprises will see hope , because the market is cruel,
competition is a reality, after all, not the low-end products to meet
market needs and face elimination, enterprise development , the product
to be updated , technology must continue breakthroughs, meet market
demand, to meet customer demand for products , companies must break
through technological breakthroughs existing mode of production.
Friday, February 28, 2014
Tuesday, February 25, 2014
Magnetic Separator has what kind of features ?
The current market , the presence of the magnetic separator is very
important. Especially in the rapid industrialization of now , many
industries are beginning to open up more areas in the new technology and
new equipment to improve the performance of their production and
products. Magnetic separator is a device that many manufacturers will
need.
It is now on the market are so many products have a magnetic separator what characteristic?
1 combination
Now many of the magnetic separator at the time of production will not be integrated , for example on both the transmission and the case generally will separate. This form will not only allow the installation of a magnetic separator updates becomes more convenient, but also saves a lot of time cleaning .
2 field
Development and application of a variety of strong permanent magnet material , so now on the market magnetic separator has been greatly improved on the strength of the magnetic field . Coupled with advances in production technology and product structure, with a very big progress in the separation effect.
3 volumes
Available on the market from the magnetic separator is not difficult to find a problem , magnetic separator on the volume is getting smaller and smaller , and this phenomenon is a good situation. Not only more convenient but also allows installation on transportation becomes easier.
These are the main sources of magnetic separator competitiveness in the market , but also the most valued consumers .
Read more ceramic magnets for sale alnico 5 magnets motor permanent magnet
It is now on the market are so many products have a magnetic separator what characteristic?
1 combination
Now many of the magnetic separator at the time of production will not be integrated , for example on both the transmission and the case generally will separate. This form will not only allow the installation of a magnetic separator updates becomes more convenient, but also saves a lot of time cleaning .
2 field
Development and application of a variety of strong permanent magnet material , so now on the market magnetic separator has been greatly improved on the strength of the magnetic field . Coupled with advances in production technology and product structure, with a very big progress in the separation effect.
3 volumes
Available on the market from the magnetic separator is not difficult to find a problem , magnetic separator on the volume is getting smaller and smaller , and this phenomenon is a good situation. Not only more convenient but also allows installation on transportation becomes easier.
These are the main sources of magnetic separator competitiveness in the market , but also the most valued consumers .
Read more ceramic magnets for sale alnico 5 magnets motor permanent magnet
Monday, February 24, 2014
Interestingly electromagnet experiments
" Ding December " bell rang , the students happily prepare science lessons. I have in mind : What an interesting experiment today, it ? ( At the beginning of suspense , readers' interest . )
At this time , the teacher walked toward the podium, smiling, said: "Students, today before the experiment , we first guess what : ? If you let the nails with a core through the power , how would " immediately active in the students up, raised their hands , some students said: " let battery short ! " the teacher said with a smile : " ? ah , yes, but it definitely will happen ," another student replied: . " nails will live hand feels will be a little numb . " But when the teacher made " NO " gesture when the students sat down with disappointment . I do not know what will happen , the teacher does not know what is snake oil medicine .
"Well , let's do an experiment to answer it ! " Then , all of a sudden the teacher's podium "change" ( a "change ", which highlights an interesting experiment . ) Out of the experimental equipment : a battery box, a battery , two long wires and critical of the trial - the nails . Teacher first wire wound on nails, and then open the switch.
We stared wait one miracle . Miracles really there ! Common nails have a magnetic moment , "snapped ! Snapped ! Popping ! " Three paperclip was sucked up , we were surprised to see the magic of the "solenoid ." But many of the " question mark" has cropped : How electromagnets work ? It is what purpose ? What is it constructed ? ...... ( A series of questions , not only to seize the reader's heart , raises below. )
We seem to see the teacher 's mind , then smiled and explained : "The electromagnet is a device that generates a magnetic force after power at the core of its power to match the external winding wire winding , magnetic, also called electromagnets. like our maglev train is through the principle of electromagnet manufactured " ( unlock secrets , there are examples of both , so that the reader can easily understand the principle of the electromagnet . ) , I think: this is not only an interesting experiment to do , but also to understand the truth is really best of both worlds ah !
Related : rare earth magnets for sale alnico 5 magnets
At this time , the teacher walked toward the podium, smiling, said: "Students, today before the experiment , we first guess what : ? If you let the nails with a core through the power , how would " immediately active in the students up, raised their hands , some students said: " let battery short ! " the teacher said with a smile : " ? ah , yes, but it definitely will happen ," another student replied: . " nails will live hand feels will be a little numb . " But when the teacher made " NO " gesture when the students sat down with disappointment . I do not know what will happen , the teacher does not know what is snake oil medicine .
"Well , let's do an experiment to answer it ! " Then , all of a sudden the teacher's podium "change" ( a "change ", which highlights an interesting experiment . ) Out of the experimental equipment : a battery box, a battery , two long wires and critical of the trial - the nails . Teacher first wire wound on nails, and then open the switch.
We stared wait one miracle . Miracles really there ! Common nails have a magnetic moment , "snapped ! Snapped ! Popping ! " Three paperclip was sucked up , we were surprised to see the magic of the "solenoid ." But many of the " question mark" has cropped : How electromagnets work ? It is what purpose ? What is it constructed ? ...... ( A series of questions , not only to seize the reader's heart , raises below. )
We seem to see the teacher 's mind , then smiled and explained : "The electromagnet is a device that generates a magnetic force after power at the core of its power to match the external winding wire winding , magnetic, also called electromagnets. like our maglev train is through the principle of electromagnet manufactured " ( unlock secrets , there are examples of both , so that the reader can easily understand the principle of the electromagnet . ) , I think: this is not only an interesting experiment to do , but also to understand the truth is really best of both worlds ah !
Related : rare earth magnets for sale alnico 5 magnets
Monday, February 17, 2014
Permanent magnets have lost after magnetic devices have what kind of harm?
A permanent magnet is in the normal state can be maintained magnetic
magnet , but if the ambient temperature changes or other factors , then
it will be with the external magnetic element and the length of time of
change. Permanent magnets as an important component of the device , if
it lost the magnetism , it will affect the normal use of the device,
then Xiaobian for you to analyze the specific hazards lost its magnetism
after it !
After losing the permanent magnet magnetic , it will cause less harm to the device : First , this type of magnet can guarantee a good part of the terminal equipment of magnetic flux leakage phenomenon does not appear , once the magnet problems, then the terminal portion of the magnetic flux leakage phenomenon will increase, will result in the device during operation , it 's the core of the phenomenon of abnormal heat , over time, will damage the device. Second, the permanent magnet magnetic loss may result in excessive loss of rotor windings , causing the entire device fever phenomenon , reduce the life of the equipment. Third , the loss of magnetic , will affect the stability of the device, causing it to the system during operation , shock phenomenon. Fourth, it can cause the device operating voltage rapid decline , which led to all kinds of equipment problems .
In short , to maintain permanent magnet magnetic device has a crucial role. Staff need a good grasp of cause permanent magnets for sale
loses its magnetism factors and appropriate to control , so as to ensure the normal operation of the device.
About us
China Rare Earth Magnet Limited - Magnet Company, a professional manufacturer of magnetic materials, specializes in producing rare earth magnet such as sintered neodymium magnet, bonded neodymium magnet, samarium cobalt magnets and alnico magnets We also supply ferrite magnet, rubber magnet and some magnetic. assemblies.
After losing the permanent magnet magnetic , it will cause less harm to the device : First , this type of magnet can guarantee a good part of the terminal equipment of magnetic flux leakage phenomenon does not appear , once the magnet problems, then the terminal portion of the magnetic flux leakage phenomenon will increase, will result in the device during operation , it 's the core of the phenomenon of abnormal heat , over time, will damage the device. Second, the permanent magnet magnetic loss may result in excessive loss of rotor windings , causing the entire device fever phenomenon , reduce the life of the equipment. Third , the loss of magnetic , will affect the stability of the device, causing it to the system during operation , shock phenomenon. Fourth, it can cause the device operating voltage rapid decline , which led to all kinds of equipment problems .
In short , to maintain permanent magnet magnetic device has a crucial role. Staff need a good grasp of cause permanent magnets for sale
loses its magnetism factors and appropriate to control , so as to ensure the normal operation of the device.
About us
China Rare Earth Magnet Limited - Magnet Company, a professional manufacturer of magnetic materials, specializes in producing rare earth magnet such as sintered neodymium magnet, bonded neodymium magnet, samarium cobalt magnets and alnico magnets We also supply ferrite magnet, rubber magnet and some magnetic. assemblies.
Sunday, February 16, 2014
Experiments show that the Earth is a big magnet argument
We are very familiar with the name Marco Polo Asians making the
magnet compass to the European region . Professor, University of Paris
left Linus shellfish tired of magnets made from oriental studies
speculate seriously . Zty Chinese children Resources Network
He did an experiment with a magnet to be placed on the water board , the board found containing magnets has always pointing north to south . He again used the same methods and rubbed iron magnet materials are placed in the same way that wood, when the wood on the water , we found that wood is also pointing north-south direction . Why is rubbed with a magnet iron objects have magnetic ?
According to Dr. Tony Gilbert also tired left Linus did the same experiment to verify that he would split the day magnet , placed on the board, then floating in the water be found even if the magnet is cut , the same will still point to the north and south . Found : The magnet and the other a level close to the orientation of the magnet , but also the occurrence of the phenomenon of mutually exclusive , and if the two magnets are oriented level ( ie the level close to the north-south ) , will attract each other , he considered this is the magnetic force. Zty Chinese children Resources Network
Gilbert found a magnet and another magnet Antarctic Arctic can be attracted to each other , thus from his research associate , the Earth itself is not that a round magnet it? Earth's magnetic poles are .
So Gilbert with magnetite ore processed a globe model were identified globe north and south poles , and with a compass needle to experiment on a small globe , compass needles actually point to the globe 's north and south poles , which, with the compass needle pointing north-south direction on the ground situation is exactly the same. It follows that a planet is a big magnet scientific argument, also proved his inference is correct.
magnet manufacturers china
ceramic block magnets
ferrite magnets for sale
He did an experiment with a magnet to be placed on the water board , the board found containing magnets has always pointing north to south . He again used the same methods and rubbed iron magnet materials are placed in the same way that wood, when the wood on the water , we found that wood is also pointing north-south direction . Why is rubbed with a magnet iron objects have magnetic ?
According to Dr. Tony Gilbert also tired left Linus did the same experiment to verify that he would split the day magnet , placed on the board, then floating in the water be found even if the magnet is cut , the same will still point to the north and south . Found : The magnet and the other a level close to the orientation of the magnet , but also the occurrence of the phenomenon of mutually exclusive , and if the two magnets are oriented level ( ie the level close to the north-south ) , will attract each other , he considered this is the magnetic force. Zty Chinese children Resources Network
Gilbert found a magnet and another magnet Antarctic Arctic can be attracted to each other , thus from his research associate , the Earth itself is not that a round magnet it? Earth's magnetic poles are .
So Gilbert with magnetite ore processed a globe model were identified globe north and south poles , and with a compass needle to experiment on a small globe , compass needles actually point to the globe 's north and south poles , which, with the compass needle pointing north-south direction on the ground situation is exactly the same. It follows that a planet is a big magnet scientific argument, also proved his inference is correct.
magnet manufacturers china
ceramic block magnets
ferrite magnets for sale
Friday, February 14, 2014
The application of magnetic tile in high-power synchronous motor and generator
Permanent magnets in magnetic tile is a permanent magnet motor is mainly used in the tile-shaped magnet, magnetic tile production process is not satisfactory although there are many places, but magnetic tile production and technical management is gradually entering a virtuous cycle, currently only the magnetic tile mill wastes can use it back and forth, with the production capacity of the surge in the number of orders, production gradually enlarge the magnetic tile, magnetic fine grinding equipment becomes magnetic tile production bottlenecks.
Magnetic watt power synchronous motors and generators in the field of applications, of course, NdFeB magnetic tile, because the precious rare earth resources, magnetic tile exponentially rising prices of raw materials, the manufacturing costs and production rates will continue to enhance its influence in some extensive use of low-end field, magnetic tile is basically used as a motor stator, miniature DC motors are mostly used ferrite tile, mainly used in toys, home appliances, automotive sector.
Magnetic watt power synchronous motors and generators in the field of applications, of course, NdFeB magnetic tile, because the precious rare earth resources, magnetic tile exponentially rising prices of raw materials, the manufacturing costs and production rates will continue to enhance its influence in some extensive use of low-end field, magnetic tile is basically used as a motor stator, miniature DC motors are mostly used ferrite tile, mainly used in toys, home appliances, automotive sector.
Attention to the problem before ordering magnets
One is so that we can more effectively with your work , we need you to confirm the following before placing your order :
1 what kind of material , performance ?
2 dimensions and tolerances ?
3 Do you want magnetizing ? If needed, what kind of magnetizing , axial, radial ?
4 Maximum temperature magnets work environment ?
5 Quantity ?
6 surface treatment ? Zinc, nickel ?
Two NdFeB magnets which application ?
NdFeB permanent magnet with its excellent performance , abundant raw material and reasonable prices are to the rapid development and wide application . Its main applications in micro motors, permanent magnet instrument , electronic industry, automobile industry , petrochemicals, nuclear magnetic resonance devices, sensors , audio equipment , magnetic suspension system, magnetic transmission and magnetic equipment.
Three magnetic analogy
Performance and low ferrite , the lowest price, good temperature characteristics , corrosion resistance, good cost performance
NdFeB highest performance, price , and strength, not high temperature and corrosion
SmCo high performance, highest price , crisp, excellent temperature characteristics , corrosion
Alnico performance and low in price , excellent temperature characteristics, corrosion resistance, differential interference
SmCo, ferrite, NdFeB sintered and bonded available method for manufacturing a high magnetic sintered molding poor moldability of the bonded magnet is good , much lower performance.
AlNiCo available manufacturing methods of casting and sintering , casting high performance magnet , good moldability is poor , the sintered magnet is low , the moldability is good.
Four of those NdFeB material ?
The main raw material NdFeB permanent magnets are rare earth metal neodymium (Nd) 32%, a metal element iron (Fe) 64% non-metallic elements and boron (B) 1% ( small amount of dysprosium (Dy), terbium (Tb), cobalt (Co), niobium (Nb), gallium (Ga), aluminum (Al), copper (Cu) and other elements ) . NdFeB permanent magnet materials based on Nd2Fe14B ternary compounds as substrates , its composition should be similar to the compounds Nd2Fe14B formula . But exactly Nd2Fe14B composition ratio , the magnets can be very low, or even non-magnetic . But the actual content of neodymium and boron magnets were neodymium and boron content than Nd2Fe14B compound for a long time to get better magnetic properties .
Five NdFeB magnetic energy can last long ?
NdFeB magnets have a very high coercivity and magnetic demagnetization will not change the natural environment and the general magnetic field . Assuming proper environment , even after prolonged use , the magnetic energy loss will not be great magnet . So in practical applications , we tend to ignore the impact of time on the magnetic properties .
Six on the orientation direction
Orientation direction : the direction of the anisotropic magnet can obtain optimum magnetic properties of the magnet is referred to as the orientation direction . Magnets are divided into : 1 , isotropic magnets : the same in any direction magnetic magnets
2, the magnetic anisotropy : the magnetic properties will be different in different directions ; orientation and direction, i.e. there is a direction of the resultant magnet highest when the direction of magnetic orientation . Sintered NdFeB magnets are anisotropic , and therefore need to determine the orientation of the pre-production direction ( magnetization direction ) .
Seven factors NdFeB magnet magnetic ?
Ambient temperature , the sintered ndfeb magnets extremely sensitive to temperature , the instantaneous temperature of the environment and the maximum temperature may be continued to produce different degrees of demagnetization of the magnet , including the reversible and irreversible , reversible and irreversible .
Eight NdFeB magnets operating temperature range is what ?
NdFeB magnets temperature limits sparked the development of a series of magnets to adapt to different levels of temperature requirements, please refer to our catalog compare the performance of each grade magnet operating temperature range. Before selecting NdFeB magnets need to confirm the maximum operating temperature .
Nine how to shield the magnetic field ?
Generally, we use an ordinary iron magnetic shield . High permeability magnetic shield materials need to meet this requirement is an iron -nickel alloy material , a material having a high magnetic permeability . When you need to shield the magnetic field is strong, with only a single layer shielding materials, shielding requirements not reach that saturation will occur. In this case , a method is to increase the thickness of the material . However, more effective method is to use a combination of shielding, a shielding member on the other shielding body , leaving an air gap between them. You can fill any non- permeability material support to make the gap , such as aluminum . Combination of shielding shielding effectiveness is much higher than a single shield , so a combination of magnetic shielding can be attenuated to a very low level .
Ten magnets to store and transport What precautions ?
Magnet in storage to keep indoor air dry, or wet environment tends to rust magnet . Ambient temperature should not exceed the maximum operating temperature of the magnet ; storage when not in electroplating products can be properly oiled rust ; magnetizing products should be stored away from the disk , magnetic tape , computer monitors , watches and other objects sensitive to magnetic fields . Magnet material more brittle , transportation , plating ( coating ) , the installation process should ensure that the magnets are not violent impact, if improper , may cause magnetic damaged, cracked ; magnet when the magnetization state should be shielded transport , especially aviation transportation must be completely shielded.
Eleven magnet operation What precautions ?
Magnet in the course should ensure that the workplace clean, otherwise easily absorbed iron and other magnetic effects of the use of small particles ; NdFeB material is characterized by a hard and brittle , and its suction up to 600 times its own weight , easy to pull collision damage . For the small size of the operation should be taken to avoid damage bump , for the large size is more important to note that personal safety and protection.
What is the reason and the second coating peeling rust is the reason ?
Qualified electroplating products, under normal circumstances , the coating should not rust appears plating . In too wet , poor air circulation , temperature change is large, even the salt spray test qualified products under long-term storage in harsh environments are likely to produce rust . When plating products stored in harsh environments environment , the basal layer and further condensation reaction will cause the binding force of the basal layer of the coating decreases, will result in serious localized chalking substrates , thus naturally from the skin . Electroplating product should not be placed in long-term high humidity areas, and shall be placed in a cool, dry place.
How to measure the magnetic properties of thirteen level ?
There are three main parameters : remanence Br (Residual Induction), units of Gauss, remove from the saturation magnetic flux density of the remaining representatives of the external magnet field strength can provide ; coercive force Hc (Coercive Force), the unit Oersteds, is put in a reverse magnetic field of the magnet , when the intensity of the applied magnetic field to a magnet disappears , the resistance to the applied magnetic materials
field is referred to as the coercive force and represents a measure of anti -demagnetization ; magnetic product BHmax, unit Gauss-Oersteds, the magnetic energy is produced per unit volume of material , the magnet can be a physical quantity of stored energy .
1 what kind of material , performance ?
2 dimensions and tolerances ?
3 Do you want magnetizing ? If needed, what kind of magnetizing , axial, radial ?
4 Maximum temperature magnets work environment ?
5 Quantity ?
6 surface treatment ? Zinc, nickel ?
Two NdFeB magnets which application ?
NdFeB permanent magnet with its excellent performance , abundant raw material and reasonable prices are to the rapid development and wide application . Its main applications in micro motors, permanent magnet instrument , electronic industry, automobile industry , petrochemicals, nuclear magnetic resonance devices, sensors , audio equipment , magnetic suspension system, magnetic transmission and magnetic equipment.
Three magnetic analogy
Performance and low ferrite , the lowest price, good temperature characteristics , corrosion resistance, good cost performance
NdFeB highest performance, price , and strength, not high temperature and corrosion
SmCo high performance, highest price , crisp, excellent temperature characteristics , corrosion
Alnico performance and low in price , excellent temperature characteristics, corrosion resistance, differential interference
SmCo, ferrite, NdFeB sintered and bonded available method for manufacturing a high magnetic sintered molding poor moldability of the bonded magnet is good , much lower performance.
AlNiCo available manufacturing methods of casting and sintering , casting high performance magnet , good moldability is poor , the sintered magnet is low , the moldability is good.
Four of those NdFeB material ?
The main raw material NdFeB permanent magnets are rare earth metal neodymium (Nd) 32%, a metal element iron (Fe) 64% non-metallic elements and boron (B) 1% ( small amount of dysprosium (Dy), terbium (Tb), cobalt (Co), niobium (Nb), gallium (Ga), aluminum (Al), copper (Cu) and other elements ) . NdFeB permanent magnet materials based on Nd2Fe14B ternary compounds as substrates , its composition should be similar to the compounds Nd2Fe14B formula . But exactly Nd2Fe14B composition ratio , the magnets can be very low, or even non-magnetic . But the actual content of neodymium and boron magnets were neodymium and boron content than Nd2Fe14B compound for a long time to get better magnetic properties .
Five NdFeB magnetic energy can last long ?
NdFeB magnets have a very high coercivity and magnetic demagnetization will not change the natural environment and the general magnetic field . Assuming proper environment , even after prolonged use , the magnetic energy loss will not be great magnet . So in practical applications , we tend to ignore the impact of time on the magnetic properties .
Six on the orientation direction
Orientation direction : the direction of the anisotropic magnet can obtain optimum magnetic properties of the magnet is referred to as the orientation direction . Magnets are divided into : 1 , isotropic magnets : the same in any direction magnetic magnets
2, the magnetic anisotropy : the magnetic properties will be different in different directions ; orientation and direction, i.e. there is a direction of the resultant magnet highest when the direction of magnetic orientation . Sintered NdFeB magnets are anisotropic , and therefore need to determine the orientation of the pre-production direction ( magnetization direction ) .
Seven factors NdFeB magnet magnetic ?
Ambient temperature , the sintered ndfeb magnets extremely sensitive to temperature , the instantaneous temperature of the environment and the maximum temperature may be continued to produce different degrees of demagnetization of the magnet , including the reversible and irreversible , reversible and irreversible .
Eight NdFeB magnets operating temperature range is what ?
NdFeB magnets temperature limits sparked the development of a series of magnets to adapt to different levels of temperature requirements, please refer to our catalog compare the performance of each grade magnet operating temperature range. Before selecting NdFeB magnets need to confirm the maximum operating temperature .
Nine how to shield the magnetic field ?
Generally, we use an ordinary iron magnetic shield . High permeability magnetic shield materials need to meet this requirement is an iron -nickel alloy material , a material having a high magnetic permeability . When you need to shield the magnetic field is strong, with only a single layer shielding materials, shielding requirements not reach that saturation will occur. In this case , a method is to increase the thickness of the material . However, more effective method is to use a combination of shielding, a shielding member on the other shielding body , leaving an air gap between them. You can fill any non- permeability material support to make the gap , such as aluminum . Combination of shielding shielding effectiveness is much higher than a single shield , so a combination of magnetic shielding can be attenuated to a very low level .
Ten magnets to store and transport What precautions ?
Magnet in storage to keep indoor air dry, or wet environment tends to rust magnet . Ambient temperature should not exceed the maximum operating temperature of the magnet ; storage when not in electroplating products can be properly oiled rust ; magnetizing products should be stored away from the disk , magnetic tape , computer monitors , watches and other objects sensitive to magnetic fields . Magnet material more brittle , transportation , plating ( coating ) , the installation process should ensure that the magnets are not violent impact, if improper , may cause magnetic damaged, cracked ; magnet when the magnetization state should be shielded transport , especially aviation transportation must be completely shielded.
Eleven magnet operation What precautions ?
Magnet in the course should ensure that the workplace clean, otherwise easily absorbed iron and other magnetic effects of the use of small particles ; NdFeB material is characterized by a hard and brittle , and its suction up to 600 times its own weight , easy to pull collision damage . For the small size of the operation should be taken to avoid damage bump , for the large size is more important to note that personal safety and protection.
What is the reason and the second coating peeling rust is the reason ?
Qualified electroplating products, under normal circumstances , the coating should not rust appears plating . In too wet , poor air circulation , temperature change is large, even the salt spray test qualified products under long-term storage in harsh environments are likely to produce rust . When plating products stored in harsh environments environment , the basal layer and further condensation reaction will cause the binding force of the basal layer of the coating decreases, will result in serious localized chalking substrates , thus naturally from the skin . Electroplating product should not be placed in long-term high humidity areas, and shall be placed in a cool, dry place.
How to measure the magnetic properties of thirteen level ?
There are three main parameters : remanence Br (Residual Induction), units of Gauss, remove from the saturation magnetic flux density of the remaining representatives of the external magnet field strength can provide ; coercive force Hc (Coercive Force), the unit Oersteds, is put in a reverse magnetic field of the magnet , when the intensity of the applied magnetic field to a magnet disappears , the resistance to the applied magnetic materials
field is referred to as the coercive force and represents a measure of anti -demagnetization ; magnetic product BHmax, unit Gauss-Oersteds, the magnetic energy is produced per unit volume of material , the magnet can be a physical quantity of stored energy .
Wednesday, February 12, 2014
Measuring method for a permanent magnet alloy magnetic
When the test and inspection of the permanent magnets and magnetic alloys , magnetic measurements are the most important. This
measurement is no more than one measurement of the magnetic properties
of the magnetic ( magnetic flux , magnetic moment , the magnetic
potential zinc, etc. ) of the measurement object itself or a permanent
magnet material ( for hysteresis ; FIG Determination of residual K and
coercive force should be so ) .
In addition , the magnet can be made simply workshop measurement ( measuring the separation force , as should the like) , but also for a particular measurement ( measuring magnetic field strength , magnetic鈇measured temperature coefficient ) . Now we study several practical on the most important and common magnetic measurements . With quantometer O flux and flux was measured . Quantometer then surrounded measured at the discretion of the flux loop ( coil ) .
When the magnetic field changes the loop winding ( coil ) inside , will have - given force . F in time, that changes in the flux of time , power sun through the loop ; charge Q can be calculated as the ratio .
Fluxmeter impact measurement is based on using the current flowing through the meter coil current shelves of this principle to construct .
Having a large moment of inertia of the movable land bobbin is suspended in the curled elastic filaments do not actually online . On grants and soft grabbing pole magnet flux meter bobbin gap between the cylinder within the system, when electricity flows through the coil former hard work , due to the interaction of the current with the magnetic field and electric power transferred . Fluxmeter bobbin to stay for a longer time in this state . Light shelves attached to a pointer , that is, along with Maxwell unit scale indexing plate and rotate pointer.
Flux is calculated using the same formula quantometer to carry out, but on behalf of these formulas Fluxmeter With Fluxmeter flux measurement techniques , although slightly higher than quantometer insensitive , then proceeded quickly and reliably . On the other hand , the impact of the current account of the roadmap , though also to ensure greater measurement accuracy, but Yi bulky , takes a long time and there are other discretionary measure many shortcomings . Further study the impact of the device when drawing after magnetization curves and hysteresis in the formulation are lines.permanent magnets for sale at magnetndfeb.com
In addition , the magnet can be made simply workshop measurement ( measuring the separation force , as should the like) , but also for a particular measurement ( measuring magnetic field strength , magnetic鈇measured temperature coefficient ) . Now we study several practical on the most important and common magnetic measurements . With quantometer O flux and flux was measured . Quantometer then surrounded measured at the discretion of the flux loop ( coil ) .
When the magnetic field changes the loop winding ( coil ) inside , will have - given force . F in time, that changes in the flux of time , power sun through the loop ; charge Q can be calculated as the ratio .
Fluxmeter impact measurement is based on using the current flowing through the meter coil current shelves of this principle to construct .
Having a large moment of inertia of the movable land bobbin is suspended in the curled elastic filaments do not actually online . On grants and soft grabbing pole magnet flux meter bobbin gap between the cylinder within the system, when electricity flows through the coil former hard work , due to the interaction of the current with the magnetic field and electric power transferred . Fluxmeter bobbin to stay for a longer time in this state . Light shelves attached to a pointer , that is, along with Maxwell unit scale indexing plate and rotate pointer.
Flux is calculated using the same formula quantometer to carry out, but on behalf of these formulas Fluxmeter With Fluxmeter flux measurement techniques , although slightly higher than quantometer insensitive , then proceeded quickly and reliably . On the other hand , the impact of the current account of the roadmap , though also to ensure greater measurement accuracy, but Yi bulky , takes a long time and there are other discretionary measure many shortcomings . Further study the impact of the device when drawing after magnetization curves and hysteresis in the formulation are lines.permanent magnets for sale at magnetndfeb.com
Five decisions magnet performance index
Magnet achievement reflected by the agnate grades , grades 5 of the important indices reflect :
Remanence , coercivity alluring consecration , built-in coercivity and best activity artefact , the best operating temperature .
First, the achievement of the allurement remanence :
The abounding name is the remanence remanence alteration body , refers to a allurement in a bankrupt ambiance is the alien alluring acreage to the assimilation magnetization disengage the alien alluring acreage , alluring alteration body at this time the achievement of what we alarm balance allure .
Popular compassionate : both allurement alluring remanence afterwards magnetization acuteness .
Remanence abridgement : Br
Remanence unit: assemblage mT millitesla and Gs gauss.
Second, the achievement of the allurement coercivity alluring consecration :
Magnet in the technology at the time of the about-face assimilation magnetization , the alluring alteration body adapted to about-face the alluring acreage backbone is bargain to aught the amount of the arrogant force is alleged alluring induction
Popular accepted that : a allurement afterwards magnetization afterwards bushing , if adapted , if this aught alluring force of the alluring acreage backbone in the about-face faculty coercivity.
Coercivity alluring consecration abridgement : Hcb
Coercivity alluring consecration unit: A / m (A / m) and Oersted (Oe) or 1 Oe ≈ 79.6A / m
Third, the achievement of the allurement coercivity :
The allurement balance magnetization Mr aught about-face the activated alluring acreage backbone adapted , which we alarm the built-in coercivity. Built-in coercivity allurement is a concrete admeasurement of the adeptness of anti- demagnetization , is a actual magnetization M aloof coercivity aught .
The arrogant force is altered from that if the about-face alluring acreage H = Bc , the backbone of the permanent magnet suppliers
while the alluring consecration B is aught , the alien alluring alteration is not displayed , but the microstructure of the allurement central the alluring dipole moment agent of 0 and not consistently , accept in this case the backbone of the allurement pole that is in the aboriginal administration tends to abide a ample amount . Therefore , Hc is not abundant to characterize the built-in alluring backdrop of the disc allurement ; If the about-face alluring acreage H increases to a assertive amount Hcj, diminutive allurement central the alluring dipole moment agent and 0, said the about-face alluring acreage H the built-in amount of the actual coercivity Hcj.
Intrinsic coercivity temperature adherence is carefully accompanying to the admeasurement of the attenuate apple abiding magnet, the allurement coercivity college temperature adherence better.
Fourth, the achievement of the allurement achievement and best activity artefact :
The (BH) max of the demagnetization ambit at any point that is the artefact of B and H Bm, Hm , and (BH) represents the alluring activity body of the allurement in the air gap created by the amplitude , i.e., the changeless alluring activity per assemblage aggregate of the air gap , back this activity is according to the artefact of the allurement Bm and Hm , so alleged activity artefact , (BH) ambit varies with B alleged alluring curves , one of which corresponds to the artefact of Bd and Hd has a best amount , alleged the best activity artefact .
One of the abounding alluring ambit , its absolute automated acceptation is the greater activity artefact , alluring actual , the beneath time adapted to aftermath the aforementioned effect. In the beheld representation of the hysteresis bend is : Hc and Br circle with the vertical band O of the affiliation band at the circle of the demagnetization Br and Hc agnate to the artefact of the best , as the best activity artefact .
Fifth, the allurement achievement of the best operating temperature :
The best operating temperature is the allurement acclimated in abode adapted instructions shall not beat the operating temperature grades .
Example : N35 brand NdFeB magnets ( able allurement ) can not beat 80 degrees operating temperature. Demagnetization abnormality will action in added than 80 degrees .
Remanence , coercivity alluring consecration , built-in coercivity and best activity artefact , the best operating temperature .
First, the achievement of the allurement remanence :
The abounding name is the remanence remanence alteration body , refers to a allurement in a bankrupt ambiance is the alien alluring acreage to the assimilation magnetization disengage the alien alluring acreage , alluring alteration body at this time the achievement of what we alarm balance allure .
Popular compassionate : both allurement alluring remanence afterwards magnetization acuteness .
Remanence abridgement : Br
Remanence unit: assemblage mT millitesla and Gs gauss.
Second, the achievement of the allurement coercivity alluring consecration :
Magnet in the technology at the time of the about-face assimilation magnetization , the alluring alteration body adapted to about-face the alluring acreage backbone is bargain to aught the amount of the arrogant force is alleged alluring induction
Popular accepted that : a allurement afterwards magnetization afterwards bushing , if adapted , if this aught alluring force of the alluring acreage backbone in the about-face faculty coercivity.
Coercivity alluring consecration abridgement : Hcb
Coercivity alluring consecration unit: A / m (A / m) and Oersted (Oe) or 1 Oe ≈ 79.6A / m
Third, the achievement of the allurement coercivity :
The allurement balance magnetization Mr aught about-face the activated alluring acreage backbone adapted , which we alarm the built-in coercivity. Built-in coercivity allurement is a concrete admeasurement of the adeptness of anti- demagnetization , is a actual magnetization M aloof coercivity aught .
The arrogant force is altered from that if the about-face alluring acreage H = Bc , the backbone of the permanent magnet suppliers
while the alluring consecration B is aught , the alien alluring alteration is not displayed , but the microstructure of the allurement central the alluring dipole moment agent of 0 and not consistently , accept in this case the backbone of the allurement pole that is in the aboriginal administration tends to abide a ample amount . Therefore , Hc is not abundant to characterize the built-in alluring backdrop of the disc allurement ; If the about-face alluring acreage H increases to a assertive amount Hcj, diminutive allurement central the alluring dipole moment agent and 0, said the about-face alluring acreage H the built-in amount of the actual coercivity Hcj.
Intrinsic coercivity temperature adherence is carefully accompanying to the admeasurement of the attenuate apple abiding magnet, the allurement coercivity college temperature adherence better.
Fourth, the achievement of the allurement achievement and best activity artefact :
The (BH) max of the demagnetization ambit at any point that is the artefact of B and H Bm, Hm , and (BH) represents the alluring activity body of the allurement in the air gap created by the amplitude , i.e., the changeless alluring activity per assemblage aggregate of the air gap , back this activity is according to the artefact of the allurement Bm and Hm , so alleged activity artefact , (BH) ambit varies with B alleged alluring curves , one of which corresponds to the artefact of Bd and Hd has a best amount , alleged the best activity artefact .
One of the abounding alluring ambit , its absolute automated acceptation is the greater activity artefact , alluring actual , the beneath time adapted to aftermath the aforementioned effect. In the beheld representation of the hysteresis bend is : Hc and Br circle with the vertical band O of the affiliation band at the circle of the demagnetization Br and Hc agnate to the artefact of the best , as the best activity artefact .
Fifth, the allurement achievement of the best operating temperature :
The best operating temperature is the allurement acclimated in abode adapted instructions shall not beat the operating temperature grades .
Example : N35 brand NdFeB magnets ( able allurement ) can not beat 80 degrees operating temperature. Demagnetization abnormality will action in added than 80 degrees .
Tuesday, February 11, 2014
Industry-specific customization powerful magnets
Industry-specific
customization powerful magnets , permanent magnet electric professional
production of customized products, as the name suggests is a magnet for
various industries customized products , chillers use almost all parts
of the industry standard , that is, we often say that the water-cooled
chiller, air cold chillers, screw chillers, low temperature chillers, open chillers and so on. For special industry-specific chiller customization, be sure to choose an experienced manufacturer.
Our company specializes in the development, production NdFeB magnets and a variety of permanent magnet magnetic materials processing, products have been widely used in industrial casting , aerospace, electronic, sound , leather handbags , metal toys , handicrafts, gift packaging and other industries a number of areas , the future has a huge market space. Industrial strength magnet is strong magnet new functional materials the most mature part , is expected to 2010-2020 , only added at the current planned Maglev train operators mileage calculation , the next 10 years will add more than 2,600 sites , powerful magnet for industrial use is expected to market capacity of 300 million square meters. Coupled with the huge demand for urban construction tunnels, underground walkways and other underground transportation facilities , the future for quite some time, industrial demand will remain strong magnet with the rapid growth trend.
Powerful neodymium magnets element is one of the industry to protect powerful magnet material representation of products , widely used in power plants , energy facilities , coal-fired power plants. In the next longer period of time , coal-fired power plants will continue to be the main electricity supply and growing . Therefore , the heat transfer element powerful magnets corrugated board has a huge market space, and will further enhance the growth of investment demand with electricity .
NdFeB magnets have special requirements for custom , before the start of production must be repeated to confirm communication , such as magnetic temperature requirements , surface coating salt spray corrosion test requirements , as well as other special needs , both sides confirmed correct before production, after all these special customized products industry , can not be used on other industries , to avoid waste of resources. http://www.magnetndfeb.com/.
Our company specializes in the development, production NdFeB magnets and a variety of permanent magnet magnetic materials processing, products have been widely used in industrial casting , aerospace, electronic, sound , leather handbags , metal toys , handicrafts, gift packaging and other industries a number of areas , the future has a huge market space. Industrial strength magnet is strong magnet new functional materials the most mature part , is expected to 2010-2020 , only added at the current planned Maglev train operators mileage calculation , the next 10 years will add more than 2,600 sites , powerful magnet for industrial use is expected to market capacity of 300 million square meters. Coupled with the huge demand for urban construction tunnels, underground walkways and other underground transportation facilities , the future for quite some time, industrial demand will remain strong magnet with the rapid growth trend.
Powerful neodymium magnets element is one of the industry to protect powerful magnet material representation of products , widely used in power plants , energy facilities , coal-fired power plants. In the next longer period of time , coal-fired power plants will continue to be the main electricity supply and growing . Therefore , the heat transfer element powerful magnets corrugated board has a huge market space, and will further enhance the growth of investment demand with electricity .
NdFeB magnets have special requirements for custom , before the start of production must be repeated to confirm communication , such as magnetic temperature requirements , surface coating salt spray corrosion test requirements , as well as other special needs , both sides confirmed correct before production, after all these special customized products industry , can not be used on other industries , to avoid waste of resources. http://www.magnetndfeb.com/.
Subscribe to:
Posts (Atom)