Metal wear-resisting and corrosion-resisting repairing method

Abstract

The invention relates to the technical field of metal material repairing, in particular to a metal wear-resisting and corrosion-resisting repairing method. Metal repairing resin curing agent raw materials comprising, by mass, 70-80 parts of polyurethane acrylate, 20-30 parts of cationic curing base resin, 2-4 phr of a free radical reactive diluent, 1-3 phr of a cationic reactive diluent, 1-2 phr of a free radical photoinitiator, 1-2 phr of an ionic photoinitiator, 0.5-1 phr of a stabilizer, 0.1-0.5 phr of a leveling agent, 0.2-0.8 phr of an antifoaming agent, 0.5-1 phr of a plasticizer, and 0.5-1 phr of a coupling agent are prepared, the toughness problem of a resin curing agent is solved, the bonding force with a matrix is ensured, the toughness of the cured resin completely replaces spherical zirconium dioxide, brown fused alumina and white fused alumina with silicon carbide in the orthopedics department, and the wear resistance and the corrosion resistance of a coating can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of metal material restoration, in particular to a metal wear-resistant and corrosion-resistant restoration method. Background technique [0002] Metal materials mainly refer to wear-resistant and corrosion-resistant materials, such as high-chromium cast iron and stainless steel, etc. At present, surfacing welding technology is generally used for wear-resistant materials. Due to its limitations, surfacing welding will produce many fine cracks, and the service life is greatly reduced compared with the original. For corrosion-resistant stainless steel, repair welding technology is used, but the corrosion resistance of the repair welding part will also be significantly reduced. At present, silicon carbide, zirconia, brown corundum, and white corundum are used as auxiliary materials, and epoxy resin and curing agent are added as wear-resistant materials. Coating repaired. Since the problem of toughness after cur...

AI Technical Summary

Problems solved by technology

[0002] Metal materials mainly refer to wear-resistant and corrosion-resistant materials, such as high-chromium cast iron and stainless steel, etc. At present, surfacing welding technology is generally used for wear-resistant materials. Due to its limitations, surfacing welding will produce many fine cracks, and the service life is greatly reduced compared with the original. For corrosion-resistant stainless steel, repair welding technology is used, but the corrosion resistance of the repair welding part will also be significantly reduced. At present, silicon carbide, zirconia, brown corundum, and white corundum are used as auxiliary materials, and epoxy resin and curing agent are added as wear-resistant materials. coating repaired

Since the problem of toughness after curing of the resin and curing agent is not solved, and the problem of the bonding force between the resin and the matrix after curing of the curing agent is not solved, the effect is not obvious. Due to the defects of the resin curing agent itself, it is impossible to All silicon carbide is used as the aggregate, otherwise it will peel off in a large area. Spherical zirconia ceramics or brown corundum and white corundum should be added to reduce the stress concentration of the coating, which will also reduce the service life. Due to the zirconia and brown corundum And white corundum, which belong to amphoteric oxides, so the coating is not suitable for working conditions containing strong acid or strong alkali, so a metal wear-resistant and corrosion-resistant repair method is needed to solve the above problems