Metal powder injection molding and sintering jig

Abstract

The invention discloses a metal powder injection molding and sintering jig, and relates to the technical field of sintering. The metal powder injection molding and sintering jig comprises a jig body, wherein the jig body comprises a base plate and a jig side wall which is in contact with the side wall of a workpiece to be sintered; two bulges are arranged on the inner surface of the side wall of the jig, and are respectively matched with two grooves formed in the side wall of the workpiece to be sintered. The sintering jig disclosed by the invention is provided with the jig side wall matched with the side wall of the workpiece to be sintered, to prevent breakage and bending deformation of the workpiece to be sintered; meanwhile, the bulges are arranged on the inner surface of the jig side wall, and are matched with the corresponding grooves of the workpiece to be sintered, so that effects of positioning and displacement prevention can be achieved; meanwhile, the matching between the bulges and the grooves make the owrkpiece to be sintered placed more accurately, and the workpiece sintering efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sintering, in particular to a metal powder injection molding sintering fixture. Background technique [0002] Metal powder injection molding technology is a new manufacturing process technology that combines powder metallurgy and plastic molding technology. It is required to first mix the selected powder with a binder, and then granulate the mixture before injection molding. shape. After molding, remove the binder, and then sinter the degreased body. However, the product is very fragile before sintering, especially after the binder is removed, especially for blanks with irregular shapes, which are prone to breakage, bending deformation, displacement, etc., resulting in the scrapping of the product. Moreover, the number of blanks is large, and the sintering needs to be fixed in a fixed posture. It takes a lot of manpower to correctly place the products one by one, and the production efficiency is low. ...

AI Technical Summary

Problems solved by technology

However, the product is very fragile before sintering, especially after removing the binder, especially for blanks with irregular shapes, it is prone to fracture, bending deformation, displacement, etc., resulting in the scrapping of the product

Moreover, the number of blanks is large, and the sintering needs to be fixed in a fixed posture. It takes a lot of manpower to correctly place the products one by one, and the production efficiency is low.

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