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Manufacturing method for composite steel pipe through laser manufacturing

A technology of composite steel pipe and manufacturing method, applied in the direction of manufacturing tools, grinding/polishing equipment, coating, etc., to achieve the effect of improving wear resistance

Inactive Publication Date: 2020-05-12
芜湖舍达激光科技有限公司
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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 provide a manufacturing method for laser manufacturing composite steel pipes. This method uses laser cladding technology to clad coating materials with certain functions on the surface of steel pipes, so as to avoid the coating on the surface of steel pipes falling off after long-term use. , and improved the performance of the steel pipe to solve the problems in the prior art proposed in the above-mentioned background technology

Method used

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  • Manufacturing method for composite steel pipe through laser manufacturing
  • Manufacturing method for composite steel pipe through laser manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for manufacturing "20G+316L" composite steel pipe by laser, the main function of the steel pipe is to improve the corrosion resistance of the steel pipe, comprising the following steps:

[0026] S1, material selection, select 20G steel pipe as the base material;

[0027] S2, 20G steel pipe pretreatment, the rust on the surface of the steel pipe is cleaned by shot blasting;

[0028] S3, 20G steel pipe installation, install the pretreated steel pipe on the rotary tooling of the complete laser cladding equipment; wipe the surface to be clad with alcohol to remove residual oil;

[0029] S4, 20G steel pipe surface coating production, first add 316L consumable powder into the powder feeder of the laser cladding complete set of equipment, and then use laser cladding process to clad 316L powder on the surface of 20G steel pipe;

[0030] S5. Coating surface treatment. After the 316L coating is produced, the surface of the steel pipe is properly polished to remove the p...

Embodiment 2

[0038] A method for manufacturing "20G+431" composite steel pipe by laser, the main function of the steel pipe is to improve the corrosion resistance and wear resistance of the steel pipe, comprising the following steps:

[0039] S1, material selection, select 20G steel pipe as the base material;

[0040] S2, 20G steel pipe pretreatment, the rust on the surface of the steel pipe is cleaned by shot blasting;

[0041] S3, 20G steel pipe installation, install the pretreated steel pipe on the rotary tooling of the laser cladding machine complete set of equipment; wipe the surface to be clad with alcohol to remove residual oil;

[0042] S4, 20G steel pipe surface coating production, first add 431 consumable powder into the powder feeder of the laser cladding machine complete set of equipment, and then use laser cladding process to clad 431 powder on the surface of 20G steel pipe;

[0043] S5. Coating surface treatment. After the 431 coating is produced, the surface of the steel pi...

Embodiment 3

[0051] A manufacturing method of laser manufacturing "20G+NiCrMo alloy" composite steel pipe, the main function of the steel pipe is to improve the high temperature corrosion resistance of the steel pipe, comprising the following steps:

[0052] S1, material selection, select 20G steel pipe as the base material;

[0053] S2, 20G steel pipe pretreatment, the rust on the surface of the steel pipe is cleaned by shot blasting;

[0054] S3, 20G steel pipe installation, install the pretreated steel pipe on the rotary tooling of the complete laser cladding equipment; wipe the surface to be clad with alcohol to remove residual oil;

[0055] S4, 20G steel pipe surface coating production, first add NiCrMo alloy consumable powder into the powder feeder of the laser cladding complete set of equipment, and then use the laser cladding process to clad the NiCrMo alloy powder on the surface of the 20G steel pipe;

[0056] S5. Coating surface treatment. After the NiCrMo alloy coating is produ...

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Abstract

The invention discloses a manufacturing method for a composite steel pipe through laser manufacturing. The manufacturing method comprises the following steps that S1, material is selected, wherein material selection is not limited by chemical components and the specification of the material; S2, pretreatment is conducted, and specifically, rust on the surface is removed through an electric grinding machine or in a shot blasting derusting mode; S3, after the material is located at a machining position, cleaning is carried out again, and oil stains on the surface are cleared thoroughly; S4, a surface coating is manufactured; S5, the surface of the coating is treated and cleaned; S6, the coating is inspected; and S7, defects are repaired. According to the manufacturing method, the pretreatment step is added before the surface coating manufacturing step so that the oil stains on the surface can be cleared thoroughly, then the rust on the surface is ground through the electric grinding machine or a shot blasting derusting method and other methods, then a coating material is cladded on the surface through a laser cladding technology, and therefore the composite coating is achieved, the capabilities such as corrosion resistance, wear resistance, high temperature resistance and the like, of an original steel pipe in a certain aspect are improved through the composite coating.

Description

technical field [0001] The invention belongs to the technical field of laser-manufactured composite steel pipes, and more specifically relates to a manufacturing method for laser-manufactured composite steel pipes. Background technique [0002] Laser cladding technology is a typical representative of laser surface treatment technology. It can prepare various alloy coatings or ceramic reinforced metal matrix composite layers on different metal substrates. The metal substrate after laser cladding treatment has smooth coating, uniform and dense structure. , layer-base metallurgical combination, and wide performance adjustment range can significantly improve the surface hardness, corrosion resistance and wear resistance of the substrate. [0003] Steel pipes are widely used in industrial fields, such as chemical industry, electric power, steel, petroleum and other industries. In industrial applications, under different working conditions, steel pipes are subjected to various ha...

Claims

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Application Information

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IPC IPC(8): C23C24/10B24B27/033B24C1/08
CPCB24B27/033B24C1/086C23C24/103
Inventor 王树保李超军陈永进钟志勇
Owner 芜湖舍达激光科技有限公司
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