Outer surface damage repair technology for shaft parts

Abstract

The invention discloses an outer surface damage repair technology for shaft parts, which comprises the steps of: S1, straightening the shaft parts, so that the straightness to be less than 0.002; S2, removing coatings on the surfaces of the shaft parts; S3, using solder wires to carry out rotary welding treatment on the surfaces of the shaft parts, wherein the solder wires are made of material which is the same as that of the shaft parts; and S4, turning and grinding to guarantee the surfaces of the shaft parts to be smooth. The outer surface damage repair technology overcomes the defects of insufficient binding force, peeling, delaminating and the like in the iron-plating technology, thus increasing the repair thickness of the shaft parts and reducing the repair cost.

Description

technical field [0001] The invention relates to a technology for repairing surface damage, in particular to a technology for repairing damage on the outer surface of shaft parts. Background technique [0002] Damage to the outer surface of the piston rod or shaft cylinder mainly includes scratches, wear, and rust. When the damage condition does not meet the requirements of use, it needs to be repaired on the surface. At present, the measures adopted are: the repair of the outer surface by iron plating process, but this iron plating repair process has a certain requirement for the thickness of the coating, and the thickness exceeds 1mm. It cannot be plated with iron. Generally speaking, the defects of the iron plating process are: 1. The coating is deposited on the surface of the substrate, the bonding force is insufficient, and it is easy to produce peeling, delamination, etc., and the thicker the coating is, the more obvious the defects are; 2. The material of the iron pla...

AI Technical Summary

Problems solved by technology

When the damage condition does not meet the requirements of use, it needs to be repaired on the surface. At present, the measures adopted are: the repair of the outer surface by iron plating process, but this iron plating repair process has a certain requirement for the thickness of the coating, and the thickness exceeds 1mm. can't be iron plated

Generally speaking, the defects of the iron plating process are: 1. The coating is deposited on the surface of the substrate, the bonding force is insufficient, and it is easy to produce peeling, delamination, etc., and the thicker the coating is, the more obvious the defects are; 2. The material of the iron plating is pure Iron, whose physical properties cannot meet the performance requirements of shaft materials; 3. Iron plating is expensive, which greatly increases repair costs

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