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Functional layer alloy material of laser manufacturing and remanufacturing continuous casting line foot roller and manufacturing method of functional layer alloy material

A technology of alloy materials and functional layers, applied in the coating process of metal materials, coatings, etc., can solve the problems of corrosion resistance, poor resistance to cold and heat alternating fatigue, etc., to avoid severe oxidation, delay penetration and expansion, high temperature The effect of satisfying fatigue and corrosion resistance performance

Active Publication Date: 2019-05-21
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

[0004] The purpose of the present invention is to solve the problems of poor corrosion resistance and alternating cold and heat fatigue resistance existing in the existing surfacing technology. After repeated research and a large number of experiments, it provides a function of laser manufacturing and remanufacturing of continuous casting line foot rolls Corrosion Resistant Alloy Material

Method used

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  • Functional layer alloy material of laser manufacturing and remanufacturing continuous casting line foot roller and manufacturing method of functional layer alloy material
  • Functional layer alloy material of laser manufacturing and remanufacturing continuous casting line foot roller and manufacturing method of functional layer alloy material
  • Functional layer alloy material of laser manufacturing and remanufacturing continuous casting line foot roller and manufacturing method of functional layer alloy material

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Experimental program
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Effect test

Embodiment 1

[0016] (1) Remove oil stains, oxides, fatigue layers and other factors that affect cladding quality on the surface of continuous casting line foot rolls.

[0017] (2) Use laser cladding technology and synchronous powder feeding method to scan cladding functional layer. The alloy composition is calculated by mass percentage: Cr: 16%, Ni: 26%, Mo: 6%, C: 0.01%, W: 0.5%, Fe: the balance; when feeding the powder, argon gas is loaded, and the powder is directly sent to the molten pool ; The thickness of each layer is controlled at about 1.0-1.2mm.

[0018] (3) After waiting for the surface of the roller to cool down, repeat the cladding process 3 times to ensure that the overall thickness reaches more than 3mm.

[0019] (4) After the cladding is completed, the surface of the functional layer is processed, and the final thickness is controlled at about 2.5mm, and the outer circle size is processed according to the requirements of the customer's drawing.

Embodiment 2

[0021] (1) Remove oil stains, oxides, fatigue layers and other factors that affect cladding quality on the surface of continuous casting line foot rolls.

[0022] (2) Use laser cladding technology and synchronous powder feeding method to scan cladding functional layer. The alloy composition is calculated by mass percentage: Cr: 18%, Ni: 28%, Mo: 7%, C: 0.05%, W: 2%, Fe: the balance; when feeding the powder, argon gas is loaded, and the powder is directly sent to the molten pool ; The thickness of each layer is controlled at about 1.0-1.2mm.

[0023] (3) After waiting for the surface of the roller to cool down, repeat the cladding process 4 times to ensure that the overall thickness reaches more than 3mm.

[0024] (4) After the cladding is completed, the surface of the functional layer is processed, and the final thickness is controlled at about 2.7mm, and the outer circle size is processed according to the requirements of the customer's drawing.

Embodiment 3

[0026] (1) Remove oil stains, oxides, fatigue layers and other factors that affect cladding quality on the surface of continuous casting line foot rolls.

[0027] (2) Use laser cladding technology and synchronous powder feeding method to scan cladding functional layer. The alloy composition is calculated by mass percentage: Cr: 17%, Ni: 27%, Mo: 6.5%, C: 0.04%, W: 1.3%, Fe: the balance; when feeding the powder, argon gas is loaded, and the powder is directly sent to the molten pool ; The thickness of each layer is controlled at about 1.0-1.2mm.

[0028] (3) After waiting for the surface of the roller to cool down, repeat the cladding process 3 times to ensure that the overall thickness reaches more than 3mm.

[0029] (4) After the cladding is completed, the surface of the functional layer is processed, and the final thickness is controlled at about 2.7mm, and the outer circle size is processed according to the requirements of the customer's drawing.

[0030] The alloy materi...

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Abstract

The invention discloses a functional layer alloy material of a laser manufacturing and remanufacturing continuous casting line foot roller and a manufacturing method of the functional layer alloy material. The alloy material is composed of the following components, by mass percentage, 16%-18% of Cr, 26%-28% of Ni, 6%-7% of Mo, smaller than or equal to 0.05% of C, smaller than or equal to 2% of W and the balance Fe. According to the functional layer alloy material of the laser manufacturing and remanufacturing continuous casting line foot roller and the manufacturing method of the functional layer alloy material, by preparing functional layer powder, fusion covering of a functional layer is performed on the continuous casting line foot roller through the process steps of laser cladding, surface processing and the like; and by adjusting the components of the alloy material, corrosion resistance and fusion covering performance of the functional layer under the high-temperature condition are guaranteed, and the situation that cracks occur is avoided. The continuous casting line foot roller is manufactured through the method, and is good in corrosion resisting effect, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of laser cladding, in particular to a functional layer alloy material for laser manufacturing and remanufacturing continuous casting line foot rolls. Background technique [0002] The foot roll is an important part of the continuous casting line. In the process of use, the surface of the foot roll of the continuous casting line will have thermal cracks, wear, corrosion and other problems, which will directly affect the surface quality of the slab, the service life of the foot roll, and the continuous operation rate. Therefore, continuous casting line foot rolls with good high temperature corrosion resistance and fatigue performance are of great significance to the improvement of continuous casting line working efficiency. [0003] At present, the foot roller usually adopts submerged arc welding and other surfacing technology to manufacture a functional layer on the surface of the roller to improve the performance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C38/44
Inventor 王晓航倪春雷董思远
Owner 沈阳大陆激光工程技术有限公司
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