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Method for remanufacturing hydraulic support column and laser cladding equipment

A technology of hydraulic support column and laser cladding, applied in coating, metal material coating process and other directions, can solve the problems of hydraulic support column unable to meet long-term use requirements, difficult to meet the needs of large-scale production, and low hardness of the cladding layer. , to achieve the effect of grain refinement, uniform crystal phase structure, and small spot deformation

Inactive Publication Date: 2019-09-20
天津北基新激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In existing solutions, solid-state lasers, CO 2 Lasers or direct-input semiconductor lasers, etc. These methods generally have low efficiency and are difficult to meet

Method used

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  • Method for remanufacturing hydraulic support column and laser cladding equipment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] First, the outer circumferential surface of the worn hydraulic support column 12 is turned to a thickness of 0.2 mm to remove the corrosion and fatigue layer on the surface; then, the turned hydraulic support column 12 is cleaned with absolute ethanol to remove oil and other impurities; next, Use magnetic particle inspection to check whether there are cracks and other defects in the hydraulic support column 12; Next, prepare cladding materials, and the mass percentages of each component are: C: 0.11%, Cr: 19%, Ni: 4.2%, Mo: 1.6%, Si: 1.2%, the balance is Fe, and the mesh number of the cladding material is 135-325 mesh; Next, fix the hydraulic support column 12 on the high-power continuous fiber laser CNC processing machine tool, and the laser process parameters are: laser spot It is a circular spot with a diameter of 3mm, the scanning power is 3000W, the scanning speed is 15m / min, and the overlapping rate is 30%. The cladding material delivered in place by coaxial powder...

Embodiment 2

[0057] First, the outer circumferential surface of the worn hydraulic support column 12 is turned to a thickness of 0.5 mm to remove the corrosion and fatigue layer on the surface; then, the turned hydraulic support column 12 is cleaned with absolute ethanol to remove oil and other impurities; next, Use magnetic particle inspection to check whether there are cracks and other defects in the hydraulic support column 12; Next, prepare cladding materials, and the mass percentages of each component are: C: 0.11%, Cr: 19%, Ni: 4.2%, Mo: 1.6%, Si: 1.2%, the balance is Fe, and the mesh number of the cladding material is 135-325 mesh; Next, fix the hydraulic support column 12 on the high-power continuous fiber laser CNC processing machine tool, and the laser process parameters are: laser spot It is a circular spot with a diameter of 3mm, the scanning power is 3300W, the scanning speed is 20m / min, and the overlapping rate is 50%. The cladding material transported in place by coaxial powd...

Embodiment 3

[0059] First, the outer circumferential surface of the worn hydraulic support column 12 is turned to a thickness of 0.3 mm to remove the corrosion and fatigue layer on the surface; then, the turned hydraulic support column 12 is cleaned with absolute ethanol to remove oil and other impurities; next, Use magnetic particle inspection to check whether there are cracks and other defects in the hydraulic support column 12; Next, prepare cladding materials, and the mass percentages of each component are: C: 0.11%, Cr: 19%, Ni: 4.2%, Mo: 1.6%, Si: 1.2%, the balance is that the mesh number of Fe cladding material is 135-325 mesh; Next, the hydraulic support column 12 is fixed on the high-power continuous fiber laser numerical control processing machine tool, and the laser process parameters are: the light spot of the laser is A circular spot with a diameter of 3mm, a scanning power of 3000W, a scanning speed of 15m / min, and a lapping rate of 30%. The cladding material transported in pl...

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Abstract

The invention relates to the technical field of metal surface treatment, in particular to a method for remanufacturing a hydraulic support column and laser cladding equipment. The method for remanufacturing the hydraulic support column comprises the following steps that laser cladding treatment is carried out on the surface of the hydraulic support column by adopting continuous fiber laser equipment, in the laser cladding treatment process, normal-temperature compressed air is introduced into a melt channel which enters a cooling state just after the melt channel is melted; and all the components in the cladding material comprise, in percentage by mass, 0.11% of C, 19% of Cr, 4.2% of Ni, 1.6% of Mo, 1.2% of Si, and the balance Fe.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a method for remanufacturing a hydraulic support column and laser cladding equipment. Background technique [0002] The hydraulic support column is the core component of the hydraulic support, which is used to bear the external load and transmit it to the base, and the hydraulic support column is also the actuator for lifting. The quality and service life of the hydraulic support column are of vital importance to the safe operation of the equipment in the mine. [0003] Due to the harsh working conditions in the mine, the surface of the hydraulic support column is easily damaged by hard objects, and it is corroded by the humid environment in the mine and worn by the residual external pollutants from the sealing ring, resulting in early failure of the hydraulic support column. For example, peeling, peeling, scratching, etc. At present, the damaged hydraulic suppo...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C38/44C22C38/02
CPCC22C38/02C22C38/44C23C24/103
Inventor 王彦敏
Owner 天津北基新激光科技有限公司