Isostatic pressing flush vertical press type die capable of telescoping freely and pressing method

Abstract

The invention discloses an isostatic pressing flush vertical press type die capable of telescoping freely. The isostatic pressing flush vertical press type die comprises a flush die, a flush rubber sleeve, a top pressing plate and shaping pressing rods. The flush die is provided with a flat cavity and no upper cover. The flush rubber sleeve comprises a U-shaped upper rubber sleeve body and a U-shaped lower rubber sleeve body. The shape of the U-shaped portion of the upper rubber sleeve body or the lower rubber sleeve body is identical to that of the cavity of the flush die. The upper rubber sleeve body is embedded in and sleeved with the lower rubber sleeve body to form a cavity for containing powder. The invention further discloses an isostatic pressing method with the isostatic pressing flush vertical press type die applied. The method comprises the steps that the flush die is placed flatwise, the lower rubber sleeve body is placed on the flush die in a sleeved mode, the lower rubber sleeve body is loaded with the powder, then the upper rubber sleeve body is placed on the lower rubber sleeve body in the sleeved mode, and the upper rubber sleeve body and the lower rubber sleeve body are sealed through a sealing device; the upper surface of the downward concave portion of the upper rubber sleeve body is covered with the top pressing plate, supporting legs of the shaping pressing rods are placed on the upper surface of the top pressing plate in an abutting mode, and the shaping pressing rods are fixed to the flush die; and then the die is vertically placed into an isostatic pressing machine for pressing. The device and method provided by the invention are high in powder loading efficiency, capable of manufacturing large-sized plate blanks and high in product qualification rate, and the powder is even.

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 ...

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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

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