Wear-resistant and corrosion-resistant alloy protective coating, rock drilling tool and preparation method of rock drilling tool
By using alloy protective coatings with specific chemical components on the rock drilling tool and preparing martensite metallographic structures using a fractionated laser cladding process, the problems of high preparation costs, high material porosity and prone to cracks in the prior art are solved, and efficient and economical wear-resistant and corrosion-resistant effects are achieved.
CN119685658APending Publication Date: 2025-03-25GAIA (ZHANGJIAKOU) CONSTRUCTION & MINING EQUIPMENT CO LTD
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Patent Information
- Application Number
- CN202411987514.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
The existing rock drilling tool protective coating has problems such as high preparation cost, high material porosity, and prone to cracks and deformation, which is not conducive to the preparation of thick coatings.
Method used
A wear-resistant and corrosion-resistant alloy protective coating is adopted, and its chemical compositions include C, Cr, Be, B, P, Mo, Si, Ge, Sn and Ni, and is prepared by a fractionated laser cladding process to form a martensite metallographic structure to improve the strength and corrosion resistance of the material.
Benefits of technology
It achieves good mechanical properties, excellent wear resistance and corrosion resistance, extends the service life of rock drilling tools, and reduces the preparation cost of alloy protective coating.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of alloy materials, and particularly discloses a wear-resistant and corrosion-resistant alloy protective coating, a rock drilling tool and a preparation method of the rock drilling tool. The alloy protective coating comprises chemical components such as C, Cr, Be, B, P, Mo, Si, Ge, Sn and Ni; wherein the percentage of the chemical components of the alloy protective coating meets the conditions that Cr + Be + Ge is larger than or equal to 10.5% and smaller than or equal to 13.5%, and Sn + Si is larger than or equal to 16% and smaller than or equal to 18%. The wear-resistant and corrosion-resistant alloy protective coating can effectively reduce the wear of the rock drilling tool, improve the wear resistance and corrosion resistance of the surface of the rock drilling tool and prolong the service life of the rock drilling tool, and the preparation method is simple and low in cost. By means of the technical scheme, the problems that an existing rock drilling tool protection coating is high in preparation cost and material porosity, cracks and deformation are prone to occurring, and thick coating preparation is not facilitated are effectively solved.
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