A layered powder spreading device for powder metallurgy gradient functional materials

Abstract

The invention provides a layered powder spreading device for powder metallurgy gradient functional materials, which is designed with a powder scraping rod, a powder scraping frame, a support platform, a support frame, a circular groove for the powder scraping rod, and a circular channel for the powder scraping frame. The structure and position of parts such as holes, adjust the position of the positioning pin so that the cross-shaped frame of the powder scraping rod protrudes from the cross-shaped groove on the lower surface of the powder scraping frame to scrape the surface of the loaded powder, continue to adjust the position of the positioning pin to make the powder scraper The upper and lower surfaces of the rod and the powder scraping frame are even and the powder can be directly cold-pressed under the cold press, and the powder loading and powder cold-pressing work of the multi-layer gradient functional material can be completed after that; The position of the indenter is fixed, the peripheral powder will not loosen or leak out, and the lower layer of powder will not flow again; the invention has simple structure and convenient installation, and can prepare gradient functional materials with large size and thin layer thickness. It has a good application prospect in small batch production of single piece.

Description

technical field [0001] The invention belongs to the field of powder metallurgy equipment, and specifically relates to a layered powder spreading device for powder metallurgy gradient functional materials, which is suitable for the powder spreading process of materials prepared by powder metallurgy technology, especially for preparing functional materials with gradient changes in material structure and performance powder spreading process. Background technique [0002] The competition between high-tech in modern society depends to a large extent on the development of materials. It can be said that materials are the basis of social development and scientific and technological progress. Gradient functional materials are derived from Japanese material scientists Masahiro Shinno, Toshio Hirai and Ryuzo Watanabe. It was proposed in the middle and late 1980s that it was a hot material studied by scholars. Functionally gradient materials specifically refer to a heterogeneous compos...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that it is difficult to control the powder spreading uniformity and flatness in the preparation process of powder metallurgy gradient functional materials, the present invention proposes a layered powder spreading device for powder metallurgy gradient functional materials, which can make the powder distribution uniform, the surface smooth, and more It can simplify the powder spreading process of large-size, thin-layer functionally gradient materials

Images