A mim316 sintering process

A technology, argon gas technology, applied in the field of MIM316 sintering technology, can solve problems such as bruises and easy scratches on the product surface, achieve the effects of improving the degree of compactness, solving the problem of low sintering hardness and wide sintering range
CN113547119BActive Publication Date: 2022-07-22东莞市华研新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
东莞市华研新材料科技有限公司
Publication Date
2022-07-22
Patent Text Reader

Abstract

The invention relates to the technical field of sintering, in particular to a MIM316 sintering process, which comprises the following steps: first, vacuum sintering; then low-pressure argon gas is charged for sintering, and sintered to the surface layer of the product to form a dense layer; Auxiliary pressure is applied to further densify the product under pressure and argon is used to cool down. The invention improves the densification degree of powder metallurgy sintering, and simultaneously solves the industry problem that the sintering hardness of austenitic stainless steel is too low.
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Description

technical field

[0001] The invention relates to the technical field of sintering, in particular to a MIM316 sintering process. Background technique

[0002] At present, vacuum furnace sintered MIM316L products have low austenite hardness, and the general hardness is below 180HV. Under normal circumstances, the general hardness is only 110-140HV. Subject to the current status of the MIM industry, the surface polishing MIM parts with high requirements are currently only 316 material. It can meet the requirements of nearly full dense polishing, but the low hardness makes the surface of the product prone to scratches, bumps and other defects. SUMMARY OF THE INVENTION

[0003] In order to solve the above technical problems, the present invention provides a MIM316 sintering process, which can effectively improve the sintering hardness of austenitic stainless steel.

[0004] The present invention adopts following technical scheme:

[0005] A MIM316 sintering process, comprising...

Claims

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