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Method for preparing centrifugal roller through laser cladding

A technology of laser cladding and centrifugal roll, which is applied in the direction of coating, metal material coating process, etc., can solve the problem of short life of centrifugal roll

Pending Publication Date: 2020-11-17
宁夏北鼎新材料产业技术有限公司
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a laser cladding technology to prepare an alloy layer with high temperature resistance, wear resistance, erosion resistance, corrosion resistance and erosion resistance on the working surface of the centrifugal roller for the short life of the existing centrifugal roller. process method

Method used

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Embodiment Construction

[0025] A method for preparing centrifugal rolls by laser cladding, the specific steps are as follows:

[0026] S1. Sand blast the working surface of the centrifugal roller blank to remove oxides and other impurities on the working surface of the blank and reduce the internal stress of the blank. The sandblasting surface effect is conducive to laser absorption and increases the metallurgical bonding strength. The material of the centrifugal roller blank is 20 steel.

[0027] S2. Prepare the alloy laser cladding powder with high temperature resistance, wear resistance, erosion resistance and corrosion resistance as the outermost functional layer. The components and mass percentages of the alloy powder are: C: 0.90%~1.40%, Cr : 28.00%~30.00%, Fe: 0~3.00%, Mn: 0~0.50%, Mo: 0~1.00%, Ni: 0~3.00%, Si: 0.70~1.55%, W: 3.50~5.50%, the rest For Co.

[0028] S3. Prepare the alloy laser cladding powder with corrosion resistance, wear resistance and erosion resistance as the base layer. T...

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Abstract

The invention relates to a method for preparing a centrifugal roller through laser cladding. The method comprises the following steps that the working surface of a centrifugal roller blank is subjected to sand blasting treatment; alloy laser cladding powder is prepared to serve as a functional layer, a priming layer or a transition layer; the prepared alloy powder is placed in a drying oven to bedried; the centrifugal roller subjected to sand blasting treatment is installed on a positioner; the alloy powder is loaded into a powder feeder, and argon is adopted as carrier gas; laser cladding process debugging of the treated powder is carried out on a substrate made of the same material as the centrifugal roller to finish cladding on a block; after no defect is found, the centrifugal rollerstarts to be cladded; and dismounting is carried out after completion of clapping of the centrifugal roller. According to the method for preparing the centrifugal roller through laser cladding, different kinds of alloy powder are adopted for layered cladding, the surface is made of corrosion-resistant, high-temperature-resistant, abrasion-resistant, erosion-resistant and scouring-resistant cobalt-based alloy, the technological method for preparing the alloy layer on the centrifugal roller through the laser cladding technology is provided, and the problem that an existing surfacing stainless steel centrifugal roller is short in service life is solved; and meanwhile, a technical scheme is provided for preparation of related key parts in other industries.

Description

technical field [0001] The invention belongs to the technical field of metal surface engineering, and in particular relates to a laser cladding method for preparing a wear-resistant, high-temperature-resistant, corrosion-resistant, and acid-magnet-resistant centrifugal roller. Background technique [0002] The four-roll centrifuge is the key equipment for rock wool production, and the centrifugal roll is the most easily damaged key component during the use of the centrifuge. When the centrifuge rotates at high speed, the molten magma with a temperature above 1400°C is cast on the centrifugal roller, which makes it withstand complex working conditions such as high temperature, erosion, corrosion, erosion, wear, and high-speed thermal fatigue, and its life is extremely short. [0003] At present, the centrifugal roller used by rock wool manufacturers is surfacing stainless steel material on the working surface as the functional layer, and the service life is about 70h. Due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C19/07C22C19/05C22C38/02C22C38/04C22C38/18
CPCC23C24/103C22C19/07C22C19/055C22C38/02C22C38/04C22C38/002C22C38/18
Inventor 张楠杨治国马永春杜世宇姜韬张瑞哲杨淑琴马良富
Owner 宁夏北鼎新材料产业技术有限公司
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