Neodymium iron boron pressed blank isostatic pressing die body

Abstract

The invention discloses a neodymium iron boron pressed blank isostatic pressing die body, and relates to the technical field of neodymium iron boron processing. The neodymium iron boron pressed blank isostatic pressing die body comprises a rectangular fixing base, a die body structure, a containing groove, a work cavity, heat transfer mechanisms and a boiling mechanism. The inner wall of the rectangular fixing base is movably connected with the die body structure. The die body structure comprises a bottom plate and a die main body. The die main body is arranged on the top of the bottom plate. The containing groove is formed in the top of the die main body. The work cavity is formed in the bottom of the die main body. The heat transfer mechanisms are separately arranged at the left end and the right end of the top of the inner wall of the work cavity. According to the neodymium iron boron pressed blank isostatic pressing die body, a neodymium iron boron pressed blank is rapidly heated, the heat transferred by the heat transfer mechanisms can make an acetone solution arranged in the boiling mechanism boiled, generated airflow enables an extrusion rod to extrude a storage bag, cooling liquid in the storage bag cools the neodymium iron boron pressed blank, the pressed blank forming effect is improved, a balance block can impact the bottom of the containing groove, the neodymium iron boron pressed blank can be conveniently taken out, and outer package of the pressed blank and interior of the containing groove can be prevented from being bonded.

Description

technical field [0001] The invention relates to an isostatic pressing mold body of a neodymium-iron-boron compact, and relates to the technical field of neodymium-iron-boron processing. Background technique [0002] Neodymium iron boron, simply speaking, is a kind of magnet. The difference from the magnets we usually see is that it is called the "magnet king" because of its excellent magnetic properties. NdFeB contains a large amount of rare earth elements neodymium, iron and boron. It is hard and brittle. Because the surface is easily oxidized and corroded, NdFeB must be surface-coated. Surface chemical passivation is one of the best solutions. As a kind of rare earth permanent magnet material, NdFeB has extremely high magnetic energy product and coercive force. At the same time, the advantages of high energy density make NdFeB permanent magnet materials in modern It has been widely used in industry and electronic technology, so that the miniaturization, light weight and t...

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Problems solved by technology

[0006] The technical problem to be solved in the present invention is to provide a NdFeB compact isostatic die body, one of the purposes of which is to have the function of improving the heat transfer rate, so as to solve the traditional NdFeB compact isostatic die body, The problem of slow heat transfer during the isostatic pressing of NdFeB compacts; another purpose is to solve the problem that the traditional NdFeB compact isostatic pressing mold body is not easy to demould after the work is completed. problem, in order to achieve the effect of improving the practicability of the NdFeB compact isostatic die body

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