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Method for laser cladding manufacturing or remanufacturing of wear and corrosion resistant wind power generator shaft

A technology of laser cladding and motor shaft, which is applied in the coating process of metal materials and coatings, can solve the problems of not being seen, and achieve the effects of high yield, accurate control of coating thickness, and low overall cost

Active Publication Date: 2013-07-10
SHENYANG DALU LASER COMPLETE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for other specific equipment components, such as special structures such as wind turbine shafts, the existing laser cladding process is obviously unable to adapt
[0010] After searching and checking by the applicant: the use of laser cladding technology to complete the wear-resistant and anti-corrosion coating of the shaft of the wind turbine has no precedent in China, and no relevant foreign countries have seen it. to report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The process of preparing wear-resistant and anti-corrosion coatings by laser cladding on the surface of wind power motor shafts includes the following processes.

[0034] 1. Motor surface pretreatment.

[0035] Use a lathe at room temperature to machine the rusted or scratched parts of the wind turbine motor shaft.

[0036] The wind turbine motor shaft is inspected by ultrasonic flaw detection method, and the processed parts are required to be free of cracks, pores, inclusions and other defects.

[0037] 2. Selection of alloy powder and adjustment of gravity powder feeding device.

[0038] The alloy powder whose wear resistance performance matches the performance of the motor shaft is selected as the working layer, and the powder composition is .

[0039] C 1.05, Cr 16, Si 1.0, W 1.2, Mn 0.5, Mo 1.1, Ni 3, V 0.10, and the balance is Fe.

[0040] Adjust the gravity powder feeding device, preset the powder feeding, adjust the powder feeding amount, so t...

Embodiment 2

[0049] The process of preparing wear-resistant and anti-corrosion coatings by laser cladding on the surface of wind power motor shafts includes the following processes.

[0050] 1. Motor surface pretreatment.

[0051] Use a lathe at room temperature to machine the rusted or scratched parts of the wind turbine motor shaft.

[0052] The wind turbine motor shaft is inspected by ultrasonic flaw detection method, and the processed parts are required to be free of cracks, pores, inclusions and other defects.

[0053] 2. Selection of alloy powder and adjustment of automatic powder feeding device.

[0054] The alloy powder with wear resistance and matching the performance of the motor shaft is selected as the working layer, and the powder composition is .

[0055] C 1.10, Cr 20, Si 0.9, W 1.0, Mn O.6, Mo 1.2, Ni 4, V 0.15, the balance is Fe.

[0056] Adjust gravity powder feeding device, preset powder feeding. Adjust the amount of powder feeding to make the thickne...

Embodiment 3

[0065] The process of preparing wear-resistant and anti-corrosion coatings by laser cladding on the surface of wind power motor shafts includes the following processes.

[0066] 1. Motor surface pretreatment.

[0067] Use a lathe at room temperature to machine the rusted or scratched parts of the wind turbine motor shaft.

[0068] The wind turbine motor shaft is inspected by ultrasonic flaw detection method, and the processed parts are required to be free of cracks, pores, inclusions and other defects.

[0069] 2. Selection of alloy powder and adjustment of automatic powder feeding device.

[0070] The alloy powder with wear resistance and matching the performance of the motor shaft is selected as the working layer, and the powder composition is .

[0071] C 1.15, Cr 22, Si0.8, W 1.4, Mn O.7, Mo 1.0, Ni 5, V 0.2, the balance is Fe.

[0072] Adjust gravity powder feeding device, preset powder feeding. Adjust the amount of powder feeding to make the thickness...

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Abstract

The invention relates to a method for the laser cladding manufacturing or remanufacturing of a wear and corrosion resistant wind power generator shaft. The method is characterized in that the method comprises the following steps: 1, preprocessing the surface of a motor shaft; 2, selecting alloy powder having a wear abrasion matched with the performances of the motor shaft as a work layer, adjusting a gravity powder sending device, and pre-setting the powder; 3, cladding the wear resistant alloy powder through a high power laser; and 4, examining the obtained wind power generator shaft through ultrasonic flaw detection after cladding. A wear and corrosion resistant coat which can form metallurgic combination with a matrix on the wind power generator shaft through using a high power CO2 laser, so the corrosion, wear and oxidation resistance characteristics of the wind power generator shaft are substantially improved, use requirements of the wind power generator are reached, and the characteristics comprising high productivity, low energy consumption, small cladding layer working allowance, high yield, low comprehensive cost and the like are possessed.

Description

technical field [0001] The invention relates to a wear-resistant and anti-corrosion method for components of power generation equipment, in particular to a method for manufacturing or remanufacturing a wear-resistant and anti-corrosion wind power motor shaft by laser cladding, and belongs to the technical field of laser cladding. Background technique [0002] The motor is one of the core components of a wind turbine. The main form of wind turbine shaft damage is that the motor bearing is damaged or the motor shaft is corroded due to the erosion of media such as sand and water in the air during the operation of the wind turbine. In the process of bearing replacement, maintenance, installation and disassembly of wind power motors, it is easy to produce strains, scratches, bumps, etc., which will cause the entire wind power generation equipment to be scrapped. As the wind turbine shaft is the main core component of wind power generation, it is expensive, and sometimes the inst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
Inventor 陶兴启黄旭东廖运生陈海涛
Owner SHENYANG DALU LASER COMPLETE EQUIP
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