Neodymium Elevator Magnets 20150112
NdFeB Permanent Magnets Manufacturer China Rare Earth Magnet Limited
Influence of Appearance of Neodymium Magnet on Elevator Tractor
1. Magnet cracks
Cracks of magnets inside of tractors may cause shutdown of the tractor, or even some unexpected dangerous result for the motor may be damaged by the cracks.
1.1 China Rare Earth Magnet Limited manufactures NdFeB permanent magnets by rolling and sintering. Materials may crack during powder process and vacuum sintering.
1.2 Process of punching holes or countersunk holes may lead to cracks in magnets.
1.3 Full inspection of materials and package can prevent delivering of unqualified magnets with fissures.
2. Edge clips
Neodymium magnets are hard and brittle. Edge clips are easily caused during machine process and delivery.
Edge clips reduces magnetic flux according to sizes of the unfilled corners. Chamfering corners of permanent magnets can effectively prevent edges clips and eliminate small uncompleted corners.
3. Surface treatment
Neodymium elevator magnets are mainly made of Nd, Fe and B, which is easy to corrode. Therefore, China Rare Earth Magnet Limited usually manufactures it with Zn or NiCuNi coating.
3.1 Qualified surface treatment should be smooth and reasonably corrosion resisting without any burrs.
3.2 Unqualified surface treatments including foams, burrs, exfoliation on the surface and corroding when magnets are tested by neutral salt spray.
3.3 Unqualified magnets should be coated again until they are qualified.
A Simple Analysis on Application of Neodymium Permanent Magnet for Tractors
Tractor magnets are mainly applied to polarity matching. Currently, according to design and tonnage, NdFeB magnets use 20, 24, 36 or 48 polarity matching.
1. Polar operation lines of rare earth neodymium magnets are that it goes from N pole to S pole. The higher the grades are, the more intensive the polar lines are, which means magnetism are much stronger.
2. When opposing magnetic field are nearer to permanent magnetic field, attraction will be stronger, which means that the tractor torsion will be stronger.
3. A reasonable design of performance, shapes and stator coils can effectively reduce magnetic eddy and improve operation efficiency and decrease noise. It is superior to slope tile permanent magnets in respective of motor efficiency.
Influence of Appearance of Neodymium Magnet on Elevator Tractor
1. Magnet cracks
Cracks of magnets inside of tractors may cause shutdown of the tractor, or even some unexpected dangerous result for the motor may be damaged by the cracks.
1.1 China Rare Earth Magnet Limited manufactures NdFeB permanent magnets by rolling and sintering. Materials may crack during powder process and vacuum sintering.
1.2 Process of punching holes or countersunk holes may lead to cracks in magnets.
1.3 Full inspection of materials and package can prevent delivering of unqualified magnets with fissures.
2. Edge clips
Neodymium magnets are hard and brittle. Edge clips are easily caused during machine process and delivery.
Edge clips reduces magnetic flux according to sizes of the unfilled corners. Chamfering corners of permanent magnets can effectively prevent edges clips and eliminate small uncompleted corners.
3. Surface treatment
Neodymium elevator magnets are mainly made of Nd, Fe and B, which is easy to corrode. Therefore, China Rare Earth Magnet Limited usually manufactures it with Zn or NiCuNi coating.
3.1 Qualified surface treatment should be smooth and reasonably corrosion resisting without any burrs.
3.2 Unqualified surface treatments including foams, burrs, exfoliation on the surface and corroding when magnets are tested by neutral salt spray.
3.3 Unqualified magnets should be coated again until they are qualified.
A Simple Analysis on Application of Neodymium Permanent Magnet for Tractors
Tractor magnets are mainly applied to polarity matching. Currently, according to design and tonnage, NdFeB magnets use 20, 24, 36 or 48 polarity matching.
1. Polar operation lines of rare earth neodymium magnets are that it goes from N pole to S pole. The higher the grades are, the more intensive the polar lines are, which means magnetism are much stronger.
2. When opposing magnetic field are nearer to permanent magnetic field, attraction will be stronger, which means that the tractor torsion will be stronger.
3. A reasonable design of performance, shapes and stator coils can effectively reduce magnetic eddy and improve operation efficiency and decrease noise. It is superior to slope tile permanent magnets in respective of motor efficiency.
