Surface treatment method of corrosion, wear and high temperature resistant metal drilling and production tool
By forming an inner alloy diffusion layer and an outer dense oxide layer on the surface of metal drilling tools, the problems of corrosion resistance, wear resistance and high temperature resistance in existing technologies are solved, achieving long-term protection of tools in harsh environments and improving service life and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing surface treatment technologies for metal drilling tools are insufficient to provide comprehensive and long-lasting corrosion resistance, wear resistance, and high-temperature protection in harsh high-temperature, high-pressure, and corrosive environments. Existing technologies also suffer from problems such as shallow penetration, poor adhesion, and environmental hazards.
By employing a multi-element co-diffusion and composite oxidation treatment method, an inner alloy diffusion layer and an outer dense oxide layer are formed on the surface of metal drilling tools. Rare earth compounds are used to catalyze the formation of the infiltration layer and modify the oxide film, thereby achieving a deep infiltration layer and a high-strength bond.
It significantly improves the surface hardness and wear resistance of metal drilling tools, extends their service life, enhances their corrosion resistance and high-temperature stability under harsh working conditions, and reduces maintenance costs.
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