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Alloy materials for wear-resistant and heat-resistant composite coatings prepared on the surface of pinch rolls in coilers

An alloy material, pinch roller technology, applied in the direction of coating, metal material coating process, etc., can solve the problems of easy deterioration of surface quality, short service life of pinch roller, etc., achieve good toughness transition, improve hardness and wear resistance performance, and the effect of optimizing process parameters

Active Publication Date: 2019-02-26
沈阳大陆激光工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of short service life and easy deterioration of the surface quality of the pinch rollers existing in the prior art. Through repeated research and improvement, a high-power CO 2 Laser rapid cladding on the surface of pinch rollers to prepare special alloy materials for high hardness, wear-resistant and heat-resistant composite coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The process of preparing a wear-resistant and heat-resistant composite coating by laser rapid cladding on the surface of a pinch roller of a coiler using the present invention as a laser cladding material includes the following process.

[0038] 1. Surface pretreatment of the pinch roller of the coiler.

[0039] Use 200 g / l of H at room temperature 2 SO 4 Pickle the surface of the pinch roller of the coiler with a mixture of 100g / l HCl to remove rust, and then use industrial alcohol to further clean the pinch roller of the coiler to ensure the cleanliness of the laser cladding surface Spend.

[0040] 2. Laser cladding the underlying iron-based alloy.

[0041] Choose DL-HL-T10000 type CO 2Laser, turn on the SIEMENS CNC machine tool. The best laser mode (low order mode) is selected by the plexiglass burning spot method to obtain a stable plasma arc state. Then, under a good protective atmosphere, laser cladding is performed on the surface of the clean pinch roller. ...

Embodiment 2

[0063] The invention is a process for preparing a wear-resistant and heat-resistant composite coating by laser rapid cladding on the surface of a pinch roller of a coiler, including the following process.

[0064] 1. Surface pretreatment of the pinch roller of the coiler.

[0065] Use 250 g / l of H at room temperature 2 SO 4 Pickle the surface of the pinch roller of the coiler with a mixture of 110g / l HCl to remove rust, and then use industrial alcohol to further clean the pinch roller of the coiler to ensure the cleanliness of the laser cladding surface Spend.

[0066] 2. Laser cladding the underlying iron-based alloy.

[0067] Choose DL-HL-T10000 type CO 2 Laser, turn on the SIEMENS CNC machine tool. The best laser mode (low order mode) is selected by the plexiglass burning spot method to obtain a stable plasma arc state. Then use a laser to perform laser cladding on the surface of the cleaned pinch roller at a scanning speed of 450mm / min. The specific process parameter...

Embodiment 3

[0089] The invention is a process for preparing a wear-resistant and heat-resistant composite coating by laser rapid cladding on the surface of a pinch roller of a coiler, including the following process.

[0090] 1. Surface pretreatment of the pinch roller of the coiler.

[0091] Use 250 g / l of H at room temperature 2 SO 4 The mixed solution of 110g / l HCl is used to pickle the surface of the pinch roller of the coiler to remove rust until it is cleaned; then further clean the pinch roller of the coiler with industrial alcohol to ensure the cleanliness of the laser cladding surface Spend.

[0092] 2. Laser cladding primer alloy.

[0093] Choose DL-HL-T10000 type CO 2 Laser, turn on the SIEMENS CNC machine tool. The best laser mode (low order mode) is selected by the plexiglass burning spot method to obtain a stable plasma arc state. Then use a laser to perform laser cladding on the surface of the cleaned pinch roller at a scanning speed of 400mm / min. The specific process...

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PUM

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Abstract

The invention discloses an alloy material for preparing a wear-resistant and heat-resistant composite coating on the surface of a coiler pinch roller. The alloy material is characterized in that an iron-based alloy is used as a substrate layer; the surface of the substrate layer is clad with a nickel-based alloy. The iron-based alloy powder comprises the following chemical components in percentage by weight: 0.15-0.25% of C, 15-16.8% of Cr, 1.00-1.50% of Si, 1.00-2.00% of Ni, 0.30-0.50% of Mn, 0.80-2.00% of Mo and 1.00-1.50% of B and the balance iron. The nickel-based alloy powder comprises the following chemical components in percentage by weight: 3.05-4.35% of C, 8.02-8.99% of Cr, 2.80-3.00% of Fe, 1.00-1.55% of Si, 0.55-0.89% of Mn, 0.38-0.80% of Al, 28.50-30.00% of W and the balance Ni.

Description

technical field [0001] The invention relates to a laser cladding technology for preparing a wear-resistant and heat-resistant composite coating on the surface of a metallurgical component, in particular to an alloy material for preparing a wear-resistant layer on the surface of a pinch roller of a coiler by laser cladding. Background technique [0002] The coiler is an important equipment on the hot rolling production line, which is used to coil the rolled finished hot strip steel into coils. The pinch roller is responsible for guiding and pinching the rolled steel plate, using the dislocation arrangement of the different diameter rollers to force the head of the strip to produce a large bend, guiding the head of the strip to enter the coiler, and during the tail coiling stage. The strip exerts a constant tension. Therefore, the pinch roller has a great influence on the surface quality of the strip steel. At present, with the development of various industries, users have hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C22C38/54C22C19/05
Inventor 王敏陈海涛
Owner 沈阳大陆激光工程技术有限公司