Anti-sticking coating for sintering hard alloy, sintering bearing device and application of anti-sticking coating and sintering bearing device

By using an anti-stick coating composed of paint A and paint B, an anti-stick coating with high adhesion strength is formed, and the problem of poor insulation effect during the sintering of cemented carbide in the prior art is solved, and a more efficient insulation effect and a longer coating service life is achieved.

CN119709012APending Publication Date: 2025-03-28XIAMEN TUNGSTEN CO LTD +2
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Patent Information

Application Number
CN202411885720.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-11-05
Filing Date
2024-12-20
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing anti-stick coatings have poor insulation effect during cemented carbide sintering, resulting in cobalt leakage and coating shedding, increasing production costs.

Method used

Anti-stick coating composed of paint A and paint B agent, which contains inorganic particles and thickeners, and paint B agent contains asphalt and solvents. The anti-stick coating with high adhesion strength is formed through low-temperature heat treatment and high-temperature heat treatment.

Benefits of technology

It significantly improves the isolation effect between the cemented carbide and the burning device, reduces cobalt leakage and coating peeling, extends the number of coatings used, and reduces production costs.

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Abstract

The invention belongs to the field of coatings, and relates to an anti-sticking coating for hard alloy sintering and application thereof. The anti-sticking coating comprises a coating agent A and a coating agent B, the coating agent A contains inorganic particles, a thickening agent and a first solvent, and the coating agent B contains asphalt and a second solvent. An anti-sticking coating layer formed by the anti-sticking coating provided by the invention has an excellent isolation effect and a wide application prospect.
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