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A functional layer alloy material for laser manufacturing and remanufacturing continuous casting line foot rolls and its manufacturing method

A technology of alloy materials and functional layers, which is applied in the coating process and coating of metal materials, can solve the problems of corrosion resistance, poor resistance to cold and heat alternating fatigue, etc.

Active Publication Date: 2021-03-16
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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  • A functional layer alloy material for laser manufacturing and remanufacturing continuous casting line foot rolls and its manufacturing method
  • A functional layer alloy material for laser manufacturing and remanufacturing continuous casting line foot rolls and its manufacturing method
  • A functional layer alloy material for laser manufacturing and remanufacturing continuous casting line foot rolls and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0017] (2) Scan and clad the functional layer with laser cladding technology and synchronous powder feeding. The alloy composition is calculated by mass percentage: Cr: 16%, Ni: 26%, Mo: 6%, C: 0.01%, W: 0.5%, Fe: balance; Argon gas is loaded when feeding powder, 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) Repeat the cladding process 3 times after waiting for the surface of the roller to cool to ensure that the overall thickness is 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 customer's drawing requirements.

Embodiment 2

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

[0022] (2) Scan and clad the functional layer with laser cladding technology and synchronous powder feeding. The alloy composition is calculated by mass percentage: Cr: 18%, Ni: 28%, Mo: 7%, C: 0.05%, W: 2%, Fe: balance; Argon gas is loaded when feeding powder, 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) Repeat the cladding process 4 times after waiting for the surface of the roller to cool, to ensure that the overall thickness is 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 customer's drawing requirements.

Embodiment 3

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

[0027] (2) Scan and clad the functional layer with laser cladding technology and synchronous powder feeding. Alloy composition by mass percentage: Cr: 17%, Ni: 27%, Mo: 6.5%, C: 0.04%, W: 1.3%, Fe: balance; Argon gas is loaded when feeding powder, 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) Repeat the cladding process 3 times after waiting for the surface of the roller to cool to ensure that the overall thickness is 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 customer's drawing requirements.

[0030] The alloy material prepared by the invention is clad on ...

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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 of continuous casting wire foot rolls. Background technique [0002] The foot roll is an important part of the continuous casting line. During the use process, the surface of the foot rolls of the continuous casting line will have problems such as thermal cracks, wear and corrosion, which directly affect the surface quality of the slab, the service life of the foot rolls, and the continuous operation rate. Therefore, the continuous casting line foot roll with good high temperature corrosion resistance and fatigue performance is of great significance to the improvement of the working efficiency of the continuous casting line. [0003] At present, foot rolls usually use submerged arc welding and other surfacing techniques to create functional layers on the surface of the rolls to improve product performance...

Claims

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Application Information

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Patent Type & Authority Patents(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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