Process introduction: pretreatment of raw materials such as weighing and rust removal. Raw materials include about 30% rare earth, about 60% pure iron, and about 10% other small metals, such as ferroboron, copper, aluminum, wrong, drilling, etc., different grades of products, the formula ratio is different, must be weighed and proportioned, pure iron must be derusted.
Process equipment: shot blasting machine, scale, weighbridge, etc

Process introduction: The raw materials after pretreatment and weighing are loaded into a vacuum melting furnace, smelted at high temperature under the protection of gas, melted to form alloy liquid, and made into crystallized alloy metal sheets with an average thickness of about 0.2~0.4mm on the rotating copper roller through the gate.
Process equipment: vacuum melting furnace

Process introduction: The hydrogen crushing (HD) process uses the hydrogen absorption characteristics of dilute intermetallic compounds to place the alloy metal sheet produced in the previous process in a hydrogen environment, and the hydrogen enters the alloy along the Fuchin phase thin layer, so that it expands, bursts and crushes to form a metal powder less than 0.5mm.
Process equipment: Vacuum hydrogen blasting furnace

Process introduction: Jet milling powder is to make the powder itself collide at high speed through nitrogen under a certain pressure, and further crush the coarse powder produced by the previous hydrogen crushing process into fine powder, that is, ultra-fine metal powder of about 0.3um.
Process equipment: jet mill

Process introduction: The main purpose of profiling is to unpress the powder into a certain shape and size, while maintaining the grain orientation obtained in the magnetic field orientation as much as possible. According to different customer requirements, the powder can be pressed into squares, cylinders, and various special-shaped products in the mold. Then through the isostatic pressing equipment, the pressing density is increased.
Process equipment: magnetic field press, isostatic press

Process introduction: In the sintering process, the physical connection of the unformed blank powder is transformed into a chemical connection, and the magnet shrinks and becomes dense, so that the magnet has the required physical properties, such as magnetic properties, mechanical properties, corrosion resistance, etc.
Process equipment: vacuum sintering furnace

Process Introduction: The iron-boron magnets obtained after sintering are blanks and need to be further machined to obtain a variety of products of different sizes, sizes and shapes. Including grinding machine processing, slicing, chamfering, punching, sleeve hole and other links.
Process equipment: grinders, slicers, etc

Process introduction: Surface treatment of rare earth permanent magnets of various shapes, such as epoxy, zinc plating, nickel, nickel, copper-nickel and phosphating, etc., to ensure the appearance and corrosion resistance of the product.

Process introduction: The electroplated product itself is not magnetic, and it needs to be magnetized in the magnetizer to be magnetic, and the magnetism is close to permanent magnet at room temperature, but there will be a certain magnetic attenuation at a certain high temperature.
Process equipment: magnetizing machine, all kinds of inspection equipment