A cold isostatic graphite forming mold blanking auxiliary device and its use method

Abstract

The invention discloses a method for charging materials using a cold isostatic graphite molding mold blanking auxiliary device, and relates to the technical field of cold isostatic graphite molding charging production. The device of the invention includes an upper barrel body (1) connected up and down and The lower barrel body (2), the inner diameter of the upper barrel body (1) is greater than the inner diameter of the lower barrel body (2), the upper barrel body (1) is provided with a blanking buffer net (3), the lower barrel The bottom of the body (2) is provided with a secondary distributing screen (4), and the method of the present invention includes the steps of putting the auxiliary device for blanking into the molding die, and making the auxiliary device for blanking and the molding die The central axis coincides; weigh the pressed powder corresponding to the weight, pour it into the upper barrel body (1), and continue to pour the pressed powder until the pressed powder fills the entire feeding auxiliary device; put the pressed powder filled lower The material auxiliary device is lifted upward at a constant speed, and the compressed powder is evenly dispersed into the molding die through the blanking buffer net (3) at the bottom of the lower barrel body (2), which has the advantage of improving the quality of the pressed green product.

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...

AI Technical Summary

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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