Device for sintering magnetic material

Abstract

The invention relates to a device for sintering a magnetic material. The device is characterized in that the device comprises a sintering furnace body 1, a sintering furnace thermal-insulating layer 2, a sintering ferrite magnetic core blank placing platform 3, a lifting platform guide rail 4, a lifting platform 5, a rotatable furnace bottom 6, an air curtain temperature-insulating device and a multipurpose heat energy recycling system. In the device, high-heat air can be prevented from penetrating through a sealing structure by a small amount of the air so that damage caused by high heat to accessory equipment and workshop staff is prevented. With the adoption of the multipurpose heat energy recycling system, injected air can be preheated by the quantity of heat of the exhausted high-heat air so that the surface of a magnetic core can not be cooled too fast, the effect of saving energy is achieved, and the damage to the structure of a mixed gas chamber by the high-heat air can be reduced. 30 to 500 DEG C of heat air can be supplied by a heater to replace the heating action of silicon molybdenum rods in a furnace at different stages so that the service life of the silicon molybdenum rods is prolonged. Sintered magnetic core is driven by the adjustable rotation furnace bottom to rotate. The production efficiency and the product quality are improved, and resources and energy canbe saved.

Description

technical field [0001] The invention relates to a magnetic material sintering device, which belongs to the technical field of magnetic material sintering preparation. Background technique [0002] Soft ferrite is widely used in communication, sensing, switching power supply, EMI and other directions. Especially with the continuous advancement of science and technology, soft ferrite is also continuously applied in new fields such as: large base stations, radar, chip manufacturing and other high-tech fields. This has created new requirements for soft ferrite such as: super large size, the size of a single product exceeds 800cm, or a product with a special shape that cannot be formed at one time and needs to be machined. In the prior art, large soft ferrite cores are often achieved by bonding smaller magnetic cores, because the bonding process requires adhesives, which have a greater impact on the use temperature of soft ferrite. The large limit, and the large magnetic core s...

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Problems solved by technology

[0003] The present invention proposes a sintering device for magnetic materials, the purpose of which is to overcome the problem that the splicing performance of special soft ferrite with super large diameter or huge volume is reduced by small pieces, and to overcome the problem of the special soft ferrite with super large diameter or huge shape. The body is prone to cracking during the sintering process, which overcomes the problem of inconsistent crystal development in various parts of the special soft ferrite with super large diameter or huge volume due to uneven temperature, so as to improve production efficiency and product qualification rate. The purpose of saving resources and energy and reducing environmental pollution while meeting market demand

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