A freely shrinkable flat-pack vertical pressure mold for isostatic pressing and its pressing method

Abstract

The invention discloses a flat-packed vertical pressure mold for isostatic pressing that can shrink freely, including a flat-packed mold, a flat-packed rubber sleeve, a top pressure plate and a shaping pressure bar; wherein the flat-packed mold has a flat cavity and no upper cover, and the flat-packed rubber The sleeve includes upper and lower rubber sleeves that are both concave, and the shape of the concave part is consistent with the shape of the cavity of the paper-pack mold, and the two are nested with each other to form a cavity for containing powder. The invention also discloses a method of using the mold for isostatic pressing: lay the flat-packed mold flat, put the lower rubber sleeve on the mold, install the powder, then put the upper rubber sleeve on the lower rubber sleeve, and seal the two through a sealing device ; Cover the top pressure plate on the upper surface of the concave part of the upper rubber sleeve, then push the supporting legs of the shaping pressure rod on the top surface of the top pressure plate, and fix it with the flat-pack mold; then put the mold vertically into the isostatic press for suppress. The device and method of the invention have high powder loading efficiency, uniform powder, can prepare large-size slabs, and have a high qualified rate of products.

Description

technical field [0001] The invention belongs to the technical field of isostatic pressing, and in particular relates to a freely shrinkable flat-pack vertical press mold for isostatic pressing, and also relates to a method for using the flat-pack vertical press mold for isostatic pressing. Background technique [0002] When pressing slabs, various isostatic pressing equipment at home and abroad often use traditional vertical pressing dies in order to control the shape of the slabs. However, although the vertically installed and vertically pressed mold is convenient to control the shape of the slab, during the powder loading process, due to the small opening, relatively high height, and the relatively large width and thickness of the mold, the powder loading operation is relatively difficult, especially for pressing some sizes. This problem is more pronounced for larger sheet metal parts. At the same time, when using traditional film pressing, since the mouth of the mold is ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a free-shrinkable flat-mounted vertical pressure mold for isostatic pressing, which solves the problems of difficulty in powder filling, easy tearing of the film mouth and small size of the slab in the existing vertical-mounted vertical pressure mold

Images