Isostatic pressing formed graphite forming mold discharge auxiliary device and application method thereof

Abstract

The invention discloses an isostatic pressing formed graphite forming mold discharge auxiliary device and an application method thereof and relates to the technical field of isostatic pressing formedgraphite forming and charging production. The isostatic pressing formed graphite forming mold discharge auxiliary device comprises an upper barrel body (1) and a lower barrel body (2) which communicate up and down. The inner diameter of the upper barrel body (1) is greater than that of the lower barrel body (2). A discharge buffer net (3) is arranged in the upper barrel body (1). The bottom of thelower barrel body (2) is provided with a secondary material distribution screen (4). The method comprises the following steps of placing the discharge auxiliary device into a pressing mold to make the central axis of the discharge auxiliary device coincide with the central axis of the pressing mold; weighing press powder at the corresponding weight, pouring the press powder into the upper barrelbody (1), and continuously pouring the press powder into the upper barrel body (1) until the whole discharge auxiliary device is filled with the press powder; and lifting up the discharge auxiliary device filled with the press powder at constant speed, and uniformly dispersing the press powder from the discharge buffer net (3) at the bottom of the lower barrel body (2) into the pressing mold. Theisostatic pressing formed graphite forming mold discharge auxiliary device and the application method thereof have the advantage of improving the quality of pressed green body products.

Description

technical field [0001] The invention belongs to the technical field of cold isostatic pressing graphite forming charging production technology, and in particular relates to a cold isostatic pressing graphite forming mold blanking auxiliary device and a use method thereof. Background technique [0002] In the cold isostatic pressing technology, mold pressing powder charging is a very important process. Whether the powder charge of the mold is uniform directly affects the quality of the internal structure of the pressed green body, and in severe cases, it will induce powder layering and cracks in the structure inside the blank. [0003] The main reasons affecting the quality of mold loading are: [0004] 1. When the mold is loaded, the unevenness of the blanking material directly affects the inconsistency of the density of the pressed blank. [0005] 2. There is a height difference between the feeding opening and the bottom of the mold barrel during blanking, and the particl...

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Problems solved by technology

[0009] The object of the present invention is to provide a cold isostatic pressing graphite molding die blanking auxiliary device and its use method in view of the problem of uneven charging of cold isostatic pressing machines in the production of large-scale cold isostatic pressing in the prior art

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