A chromium-nickel-niobium alloy hardfacing wear-resistant composite steel plate and mirror finishing process thereof

CN122354007APending Publication Date: 2026-07-10
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-04-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The inner wall material of existing mineral processing silo equipment is prone to adhesion and wear when handling sticky dust or fine particles, leading to material accumulation, structural damage, and affecting production efficiency and cost.

Method used

A wear-resistant composite steel plate with chromium-nickel-niobium alloy overlay and its mirror finishing process is adopted. By overlaying a chromium-nickel-niobium alloy layer with a specific composition on the surface of the substrate layer, combined with the mirror finishing process, a high-hardness wear-resistant alloy layer is formed and the surface roughness is controlled.

Benefits of technology

It improves the wear resistance of the inner wall of the silo, prevents material accumulation and arching, extends service life, reduces maintenance costs, and ensures the continuous and stable operation of the mineral processing process.

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Abstract

This invention discloses a chromium-nickel-niobium alloy weld overlay wear-resistant composite steel plate, comprising: a base layer and a wear-resistant alloy layer welded to the surface of the base layer. This invention relates to the field of steel plate processing technology. By welding a chromium-nickel-niobium alloy of a specific composition onto the surface of the base layer to form a wear-resistant alloy layer, this plate exhibits stronger resistance to erosion and wear compared to ordinary steel plates. It can effectively resist frictional damage caused by the long-term falling of mineral processing materials, slow down the wear rate of the steel plate, extend the service life of the silo inner wall, reduce the frequency of downtime for maintenance, and lower the maintenance costs for enterprises. Simultaneously, through a mirror-finishing process, the extremely low surface roughness significantly reduces the adhesion conditions of sticky dust and fine particles, effectively preventing material accumulation, arching, and sticking problems, ensuring smooth material discharge, maintaining the effective volume and discharge efficiency of the silo, meeting the high requirements for the cleanliness of the silo interior in high-precision mineral processing operations, and ensuring the continuous and stable operation of the mineral processing process.
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