1,500 KN magnetic material wet type forming hydraulic machine and hydraulic forming process

Abstract

The invention discloses a 1,500 KN magnetic material wet type forming hydraulic machine and a hydraulic forming process, and relates to the technical field of magnetic product production. The 1,500 KNmagnetic material wet type forming hydraulic machine comprises a hydraulic machine body. The hydraulic machine body comprises an upper workbench, a lower workbench, magnetism conducting vertical columns, a lower die part and an upper die part. The upper die part comprises an upper sliding block driven to slide up and down, a magnetizing and demagnetizing device fixed to the lower end of the uppersliding block, and an upper die fixed to the lower end of the magnetizing and demagnetizing device. The upper sliding block is slidingly connected with the magnetism conducting vertical columns on the periphery. The lower die part comprises a lower die support fixed to the lower workbench, a lower die fixed to the lower die support, and a lower sliding block arranged below the lower die and driven to slide up and down. The lower sliding block is slidingly connected with the lower die support, and the lower die support is connected with the magnetism conducting vertical columns on the periphery. A magnetism conducting circuit can be formed during magnetizing, and produced workpieces have good magnetism uniformity and stability; and in combination with the special hydraulic forming process,the produced products have uniform and stable magnetism and high mechanical performance and consistency.

Description

technical field [0001] The invention relates to the technical field of magnetic product production, in particular to a 1500KN magnetic material wet forming hydraulic press and a hydraulic forming process. Background technique [0002] In the micro power motors used in today's industrial equipment, automobiles, health care, household appliances, etc., magnetic products made of ferrite magnetic materials are more and more widely used. With the rapid development of modern technology, in the actual supporting use of magnetic products , the requirements are getting higher and higher, the volume requirements are getting smaller and smaller, but the magnetic performance and durability need to be stronger and stronger. In order to meet the rising technological requirements, it is imperative to improve and innovate the molding process of magnetic products. [0003] At present, the widely used magnetic material wet forming hydraulic press simply uses a 6KVA magnetizing transformer wit...

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Problems solved by technology

[0006] Aiming at the problems of uneven magnetization, weak and unstable magnetization in products pressed by the wet-type magnetic forming hydraulic press in the prior art, the present invention provides a 1500KN magnetic material wet-forming hydraulic press and a hydraulic forming process. It can form a magnetic conduction circuit, so that the magnetic consistency of the ferrite slurry is high, and the ferrite workpiece formed by pressing has uniform magnetic properties and good stability; combined with mold clamping→filling→compression and magnetization→demagnetization and compression→pressure holding →The hydroforming process of pressure relief→cavity exit→part extraction can produce products with uniform and stable magnetic properties, and the product has high mechanical properties and consistency; in addition, due to the addition of demagnetization, pressure relief, cavity exit, and part extraction, etc. , which greatly shortens the pick-up time, greatly improves the production efficiency and reduces the production cost

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