Process for preparing functional roller way through laser cladding

Abstract

The invention relates to the technical field of laser cladding, in particular to a process for preparing a functional roller way through laser cladding, which comprises the following steps: preparing a cladding material; the cladding material is prepared by mixing a copper plate, tungsten carbide, a nickel plate and silicon, melting the mixture into liquid at high temperature, and preparing solid cladding powder from the molten liquid; and the prepared cladding material is subjected to cladding on the functional roller bed base material through laser, and the cladding thickness ranges from 1 mm to 3 mm. The solid cladding powder comprises the following components in percentage by mass: 8-15% of Cu, 40-55% of W, 1.5-3.5% of C, less than or equal to 1% of Si, less than or equal to 1% of Fe, less than or equal to 1% of Cr and less than or equal to 0.1% of O element; and the balance of Ni. The service life of the roller way can be prolonged, the wear-resisting effect of the roller way can be improved, and process accidents are reduced.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a process for preparing functional roller tables by laser cladding. Background technique [0002] Functional roller table: including guide rollers, conveying rollers, looper rollers, steering rollers or rack rollers, all of which are used for conveying and guiding, and there is rolling friction directly with the conveying parts. In the case of high temperature and high speed, the function There will be grooves on the surface of the roller table due to wear and tear. After a period of use, it needs to be replaced, which affects the normal operation of the production line and the quality of the conveyed steel. In order to enhance the wear resistance of the functional roller table, a layer of alloy is laser clad on the surface of the functional roller table in the existing technology, but after cladding, cracks are prone to appear on the surface of the functional roller table...

AI Technical Summary

Problems solved by technology

[0002] Functional roller table: including guide rollers, conveying rollers, looper rollers, steering rollers or rack rollers, all of which are used for conveying and guiding, and there is rolling friction directly with the conveying parts. In the case of high temperature and high speed, the function There will be grooves caused by wear on the surface of the roller table. After a period of use, it needs to be replaced, which will affect the normal operation of the production line and the quality of the conveyed steel.

In order to enhance the wear resistance of the functional roller table, a layer of alloy is laser clad on the surface of the functional roller table in the existing technology, but after cladding, cracks are prone to appear on the surface of the functional roller table, and the wear resistance does not reach the expected effect, which affects the functional roller. Tao use

[0003] In summary, there are the following problems in the prior art: the existing functional roller table adopts laser cladding, the surface of the roller table is prone to cracks, and the wear resistance needs to be further improved

[0004] In addition, various materials need to be crushed before being melted at high temperature in the vacuum smelting furnace. Although there are crushers at present, after the materials are crushed, workers still need to take out the crushed materials and then transport them to the vacuum smelting furnace place, and then transport the crushed materials to the inside of the vacuum smelting furnace through other machinery, which is not only troublesome to operate, but also consumes a lot of manpower

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