Ndfeb Neodymium Magnet is a Magnet with high commercial performance found at present. It is known as Magneto, and has magnetic properties of its large magnetic energy product (BHmax) more than 10 times higher than Ferrite. Its own mechanical processing performance is also quite good. The operating temperature is up to 200 degrees Celsius. And its texture is hard, stable performance, good cost performance, so it is widely used. But because of its strong chemical activity, the surface coating treatment is necessary. (such as Zn,Ni, electrophoresis, passivation, etc.).
NdFeb magnet has good magnetic energy production and force, and the advantages of high energy density make NdFeb permanent magnet materials in modern industry and electronic technology have been widely used, so as to make instruments, electroacoustic motor, magnetic separation and magnetization equipment miniaturization, lightweight, thin become possible.
From the process, there are Sintered Neodymium Magnets and Bonded Neodymium Magnets, we focus on Sintered Neodymium Magnets.
Process: Batching → Smelting Ingot → Powder Making → Pressing → Sintering Tempering → Magnetic Testing → Grinding → Pin Cutting → Electroplating → Magnetization → Finished Product.
The ingredients are the basis, sintering tempering is the key NdFeb magnet production tools: melting furnace, cracking machine, ball mill, air mill, pressing machine, vacuum sealing machine, isostatic press, sintering furnace, heat treatment vacuum furnace, magnetic property tester, Gauss meter.
Magnetic field characteristics:
1.The magnetic induction line around the magnet is from the N pole of the magnet to the S pole back;
2.Magnetic induction line will not cross;
3.The magnetic field is strong where the magnetic field is dense and weak where the magnetic field is thin;
4.The magnetic induction line is a closed curve;
5.The magnetic line is not really exist is imaginary, magnetic field is the real existence.
Material characteristics: the advantages of NdFeb are high cost performance and good mechanical processing characteristics; The deficiency lies in Curie’s low temperature point, poor temperature characteristics, and easy to powder corrosion. It must be improved by adjusting its chemical composition and adopting surface treatment methods to meet the requirements of practical application.
Magnetic Materials mainly include permanent magnet Materials, soft Magnetic Materials, signal-magnetic Materials, special Magnetic Materials, etc., covering many high-tech fields. In the fields of permanent magnet material technology, permanent magnet ferrite technology, amorphous soft magnetic material technology, soft magnetic ferrite technology, microwave ferrite device technology, magnetic material equipment technology, has formed a huge industrial group.
Post time: Sep-18-2022