Magnetic field isostatic pressing machine

Abstract

The invention relates to magnetic powder forming equipment, in particular to a magnetic field isostatic pressing machine. By the adoption of the magnetic field isostatic pressing machine, the problems that an existing magnetic field isostatic pressing machine is complicated in structure, low in automation degree and low in orienting magnetic field are solved. The magnetic field isostatic pressing machine comprises a machine frame. An upper high-pressure oil cylinder is arranged at the top of the machine frame. A workbench is arranged in the middle of the machine frame. An isostatic pressing mold is placed on the workbench. The workbench can move relative to the machine frame. Electromagnetic coils are fixed to the machine frame. Iron cores are arranged in the electromagnetic coils. One end of the iron core of each electromagnetic oil above the isostatic pressing mold is fixedly connected with the end of a piston rod of the upper high-pressure oil cylinder, and the other end of the iron core of each electromagnetic oil above the isostatic pressing mold is made into a pressing head which can stretch into the isostatic pressing mold and be matched with the inner wall of the isostatic pressing mold. The isostatic pressing mold comprises an isostatic pressing mold cavity. A spacer bush is arranged in the isostatic pressing mold cavity. Liquid plastic is poured into the space between the spacer bush and the inner wall of the isostatic pressing mold. According to the magnetic field isostatic pressing machine, the isostatic pressing mold cavity can serve as the mold, and the overall structure is greatly simplified; meanwhile, the multi-station movable workbench can be arranged, and thus high efficiency and automation are achieved.

Description

technical field [0001] The invention relates to magnetic powder molding equipment, in particular to a magnetic field isostatic press. Background technique [0002] At present, the most commonly used process for anisotropic magnetic powder molding is to use a magnetic field press for magnetic field orientation preforming, and then use an isostatic press for isostatic pressing to improve the density. Anisotropic magnetic powder preforming requires magnetic field orientation, and the pressure direction is parallel to the direction of the orientation magnetic field, which is called a parallel compression field press; the pressure direction is perpendicular to the direction of the orientation magnetic field, which is called a vertical compression field press; whether it is parallel or vertical Any pressure will destroy the magnetic field orientation to a certain extent, and the damage to the magnetic field orientation by parallel pressure is particularly prominent. Moreover, pre...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problems of complex structure, low degree of automation and low orientation magnetic field of existing magnetic field isostatic presses, and provides a new type of high-efficiency magnetic field isostatic press that can be applied in actual production and can realize continuous automatic working cycle

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