The first process of magnet production: smelting

Smelting is the first process for the production of sintered NdFeB magnets.About 1300 degrees, lasting four hours to complete. After this process, the raw materials of the magnet are processed into alloy sheets by hot melting and cooling, and then the next process is carried out, hydrogen crushing.

The smelting section is carried out after batching. This step is mainly responsible for casting the prepared materials into tablets or ingots, which are completed by large furnaces and small furnaces respectively. The following is a brief explanation of the melting of cast pieces by Youlian Magnetic Industry, a manufacturer of electric-driven magnetic materials:

The instruments and tools and auxiliary materials needed in smelting are basically the same, such as gloves, masks, lighting tools, etc. In comparison, the process of casting ingots is complicated, and you need to pay attention to wearing them when casting tablets to avoid burns;

Secondly, when hoisting, carefully check the wire rope and other equipment, and it needs to be carried out in no man's land;

Attention should be paid to abnormal phenomena during the third pouring, and only when there is no abnormality can it be continued; the fourth replacement of tundish operation requires wearing a mask to reduce the harm of dust to the human body, prevent the human body from polluting the cast piece, and prevent the cast piece from scratching the human body.

The smelting section of magnets (NdFeB magnets) plays a vital role in the subsequent milling, magnetic field orientation and sintering, and improper handling of such links will have an irreparable impact on the overall performance of the magnets.

Source: magnet manufacturers Youlian Magnetic Industrywww.youliancy.com