Laser cladding method of heavy rail straightening guide roller

Abstract

The invention provides a laser cladding method of a heavy rail straightening guide roller. According to the laser cladding method of the heavy rail straightening guide roller, multiple layers of cladding faces are in gradient distribution, advantage complementing between the multiple layers of cladding faces is achieved, laser cladding is sequentially conducted, cladding of each layer of claddingface is conducted in cooperation with set technological parameters, the problem that in the prior art, cracking is prone to happen is solved. By means of the multi-layer gradient structural design, gradient distribution of performance and mutual advantage complementing of all the layers are achieved, and therefore the comprehensive performance of the laser cladding layer is significantly improved.Meanwhile, the laser cladding method of the heavy rail straightening guide roller can replace a electroplating technological manner, avoids environmental pollution, greatly improves the surface hardness and wear resistance of parts, effectively lowers the surface roughness of the cladding layer and achieves a good technological effect. By the adoption of the technology, the heavy rail straightening guide roller can bear a strong impact work condition in the straightening guiding process, and the service life of the heavy rail straightening guide roller is effectively prolonged.

Description

technical field [0001] The invention belongs to the field of technological processing, and in particular relates to a laser cladding method for a straightening guide roller of a heavy rail. Background technique [0002] In the past, electroplating was used to strengthen the guide rollers of heavy rail straightening. This process pollutes a lot, and the electroplating effect shows that the hardened layer is thin, and the hardness and wear resistance are obviously insufficient. Contents of the invention [0003] The invention provides a laser cladding method for straightening guide rollers of heavy rails. The cladding surface is divided into multi-layer gradient distribution to realize complementary advantages. Laser cladding is carried out in sequence, and each layer is cladding according to the set process parameters. The problem of easy cracking in the existing technology is solved, and the gradient distribution of performance and complementary advantages between layers a...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a laser cladding method for straightening guide rollers of heavy rails. The cladding surface is divided into multi-layer gradient distribution to realize complementary advantages. Laser cladding is carried out in sequence, and each layer is cladding according to the set process parameters. It solves the problem of easy cracking in the existing technology. Through the multi-layer gradient structure design, the performance gradient distribution and complementary advantages of each layer are realized, and the comprehensive performance of the laser cladding layer is significantly improved.