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Antifriction heat-resistant cobalt-based alloy material used for laser composite manufacturing of large and medium proximate matter rollers

A cobalt-based alloy, large and medium-sized technology, which is applied in the laser composite manufacturing of metallurgical equipment components to reduce friction and heat-resistant layers, wear-reducing and heat-resistant cobalt-based alloy powders, can solve problems such as not having alloy powder materials, and achieve improved friction conditions, Effect of reducing energy loss and reducing surface retention ability

Inactive Publication Date: 2017-05-31
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

There is no alloy powder material on the market that can be directly used for laser cladding to manufacture large and medium-sized profile rolls

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Use 6KW fiber laser to develop and design wear-reducing and heat-resistant cobalt-based alloy powder, and carry out laser cladding on large and medium-sized profile rolls. The composition of anti-friction and heat-resistant cobalt-based alloy material is: C: 0.85%, Cr: 23.00%, Si: 1.10%, Ni: 10.00%, Mn: 0.25%, W: 8.50%, Fe: 1.05%, B: 3.00 %, N: 2.50%, the balance is Co. First, clean the working surface of the roll after it comes off the production line, clean the cracks on the surface by turning, and clean with acetone to remove oil stains; dry the anti-friction and heat-resistant cobalt-based alloy powder at 200°C for 2 hours. After the cladding conditions are met, the cladding process parameters are adopted: power 3500W, scanning speed 800mm / min, lap rate 50%, synchronous powder feeding 32g / min for laser cladding. After the on-line test of the wear-reducing heat-resistant cobalt-based alloy large and medium-sized profile rolls prepared by laser cladding, the high-tem...

Embodiment 2

[0018] Using 6KW fiber laser, researched and developed anti-friction and heat-resistant cobalt-based alloy powder for laser cladding of large and medium-sized profile rolls. The composition of the wear-reducing and heat-resistant cobalt-based alloy material is, C: 1.10%, Cr: 25.00%, Si: 1.20%, Ni: 11.00%, Mn: 0.40%, W: 10.00%, Fe: 1.20%, B: 3.5 %, N: 3.85%, and the balance is Co. First, clean the working surface of the roll after it comes off the production line, clean the cracks on the surface by turning, and clean with acetone to remove oil stains; dry the anti-friction and heat-resistant cobalt-based alloy powder at 200°C for 2 hours. After the cladding conditions are met, the cladding process parameters are adopted: power 3000W, scanning speed 700mm / min, lap rate 55%, and simultaneous powder feeding 30g / min for laser cladding. The wear-reducing and heat-resistant cobalt-based alloy large and medium-sized profile rolls prepared by laser cladding have good laser cladding qu...

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PUM

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Abstract

The invention discloses antifriction heat-resistant cobalt-based alloy powder used for laser composite manufacturing of large and medium proximate matter rollers. The antifriction heat-resistant cobalt-based alloy powder is characterized in that the components of the cobalt-based alloy powder material comprise, by weight, 0.55-1.25% of C, 20.00-27.00% of Cr, 1.00-1.30% of Si, 10.00-15.00% of Ni, 0.20-0.50% of Mn, 5.50-11.50% of W, 1.00-1.50% of Fe, 3.00-5.00% of B, 2.50-5.20% of N and the balance Co. By optimizing the matching of the laser cladding powder material, the antifriction heat-resistant material suitable for the large and medium proximate matter rollers is designed, and cladding layers are manufactured on the surfaces of the large and medium proximate matter rollers through the laser cladding technology, so that the abrasion resistance requirement of the rollers under the high temperature and high pressure conditions is met.

Description

technical field [0001] The invention relates to a wear-reducing and heat-resisting layer for metallurgical equipment components, in particular to a wear-reducing and heat-resisting cobalt-based alloy powder capable of forming a stable oxide film through laser compounding of large and medium-sized profile rolls, and belongs to the technical field of laser cladding. Background technique [0002] Rolls are one of the main consumable spare parts in steel rolling production. Considering the downtime, production reduction and equipment maintenance caused by roll consumption, roll consumption accounts for a very large proportion of production costs. Due to the maturity of the centrifugal composite manufacturing technology, the service life and product quality of plate and small and medium-sized profile rolls have been greatly improved, and their replacement has been completed. However, the large and medium-sized profile rolls have large diameters and large diameter drop due to compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/07C22C30/00C23C24/10
CPCC22C19/07C22C30/00C23C24/103
Inventor 陈海涛周双王敏史建民
Owner 沈阳大陆激光工程技术有限公司
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