Sintered neodymium-iron-boron hydrogen decrepitation device capable of improving efficiency

Abstract

The invention discloses a sintered neodymium-iron-boron hydrogen decrepitation device capable of improving efficiency, and relates to the technical field of sintered neodymium-iron-boron processing. The sintered neodymium-iron-boron hydrogen decrepitation device comprises a neodymium-iron-boron hydrogen decrepitation treatment chamber, hydrogen cylinder filling feeding equipment, heat exchange equipment and equipment internal vacuum treatment equipment, wherein the hydrogen cylinder filling feeding equipment is movably installed inside the neodymium-iron-boron hydrogen decrepitation treatment chamber, the heat exchange equipment is fixedly installed at the bottom of the neodymium-iron-boron hydrogen decrepitation treatment chamber, and the bottom of the equipment internal vacuum treatment equipment is fixedly installed at the top of the neodymium-iron-boron hydrogen decrepitation treatment chamber. According to the sintered neodymium-iron-boron hydrogen decrepitation device, through the principle of mutual production between current and magnetic force of an electromagnetic controller, electric power is provided for the electromagnetic controller so as to generate a magnetic field, a hydrogen tank is adsorbed to a hydrogen cylinder filling base, a magnetic force adsorption module also utilizes the characteristic that the magnetic field adsorbs a metal object, hydrogen is injected into a pressurization flow transfer bin, the hydrogen is delivered into the device through an anti-leakage protection pipeline for hydrogen decrepitation, and the hydrogen cylinder is quite convenient to replace.

Description

technical field [0001] The invention relates to a hydrogen crushing device, relates to the technical field of sintered NdFeB processing, in particular to a sintered NdFeB hydrogen crushing device with improved efficiency. Background technique [0002] The hydrogen crushing device is a kind of non-mechanical force that forms ingot or flake rare earth alloy materials into powder, mainly through the reaction of hydrogen gas with rare earth alloys (such as Nd2Fe14B) and using rare earth alloys (such as NdFeB) in the The intergranular fracture and transgranular fracture generated in the process of hydrogen absorption and desorption lead to the pulverization of rare earth alloys, forming an embrittlement and crushing process, and thus obtaining a certain particle size of rare earth alloy powder. There are following problems at prior art: [0003] 1. The hydrogen crushing device has the problem that the hydrogen supply is not fast enough. When dealing with a large amount of NdFeB,...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a sintered NdFeB hydrogen crushing device with improved efficiency. One of the purposes is to have the function of replacing hydrogen cylinders at high speed and fixing them, so as to solve the cumbersome replacement of hydrogen cylinders and cause hydrogen gas inside the equipment. The problem of interruption; another purpose is to solve the problem that the internal pressure of the equipment is not easy to monitor, so as to achieve the effect of real-time monitoring of the specific value of the internal pressure and automatically adjust it, and another purpose is to assist in improving the hydrogen crushing reaction The function of efficiency facilitates the acceleration of the hydrogen crushing reaction, and improves the quality of the final product while maintaining the high-speed hydrogen crushing reaction

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