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Cladding method for inner hole of stand column

A column and inner hole technology, applied in the direction of metal material coating process and coating, can solve the problems of limited inner space of column inner hole and hinder the industrial application of laser technology, so as to improve operability, reduce friction coefficient, prevent The effect of cracking and deformation

Active Publication Date: 2016-02-24
SHANDONG ENERGY HEAVY EQUIP MFG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inner space of the inner hole of the column is limited, and the existing laser and cladding process cannot realize the cladding of the inner hole of the column, which hinders the industrial application of laser technology

Method used

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  • Cladding method for inner hole of stand column
  • Cladding method for inner hole of stand column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A cladding method for an inner hole of a column, comprising the following steps:

[0046] (1) pretreat the inner hole of the column 1 to be processed, remove the burrs and rust on the surface of the inner hole, and expose the metallic luster;

[0047] (2) Fix the column 1 to be processed on the tooling, place the laser head inside the column 1 to be processed, and the laser head moves in the direction of the main axis of the column 1 to be processed, and the laser head is provided with a smoke removal The device and powder feeding device can absorb the smoke generated during the cladding process in time;

[0048] (3) Adopt synchronous powder feeding mode, the laser head moves from one end of the column to be processed 1 to the other end along the main axis direction of the column to be processed 1, and completes a feed movement;

[0049] (4) The laser head resets along the main axis direction of the column 1 to be processed, and performs the next feed movement;

[005...

Embodiment 2

[0061] The same part of this embodiment and Embodiment 1 will not be described again, the difference is:

[0062] The alloy powder includes the following formula components: C: 0.06 parts, Mo: 14 parts, W: 5.0 parts, Ni: 36.5 parts, Fe: 5 parts, Mn: 0.7 parts, Cr: 13 parts, Si: 0.3 parts, V: 0.5 parts.

[0063] The length of the column 1 to be processed is 3m, and the cross section of the column 1 to be processed is a square, and the cladding method is as follows:

[0064] (1) During a feed movement of the laser head along the main axis direction of the column 1 to be processed, the laser head is clad from one end of the inner hole of the column 1 to be processed to the other end to obtain the Nth cladding strip 2 , the thickness of one side is 1.6mm;

[0065] (2) The laser head is reset along the main axis direction of the column 1 to be processed, and on the side of the Nth cladding strip 2, it is overlapped and clad from one end of the column 1 to be processed to the othe...

Embodiment 3

[0072] The same part of this embodiment and Embodiment 1 will not be described again, the difference is:

[0073] The alloy powder includes the following formula components: C: 0.08 parts, Mo: 16 parts, W: 5.5 parts, Ni: 43.9 parts, Fe: 7 parts, Mn: 1.0 parts, Cr: 15 parts, Si: 0.5 parts, V: 0.7 parts.

[0074] The length of the column 1 to be processed is 2.5m, and the cross section of the column 1 to be processed is a regular hexagon, and the cladding method is as follows:

[0075] (1) During a feed movement of the laser head along the main axis direction of the column 1 to be processed, the laser head is clad from one end of the inner hole of the column 1 to be processed to the other end to obtain the Nth cladding strip 2 , the thickness of one side is 2mm;

[0076] (2) The laser head is reset along the main axis direction of the column 1 to be processed, and on the side of the Nth cladding strip 2, it is overlapped and clad from one end of the column 1 to be processed to...

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Abstract

The invention relates to a cladding method for an inner hole of a stand column, and belongs to the technical field of laser cladding. Alloy powder is cladded to the inner hole of the stand column to be machined to obtain a cladding layer. The wear resistance of the inner hole of the stand column is effectively improved; the service life of the stand column is prolonged; the operability of carrying out laser cladding on the inner hole of the stand column is improved; the alloy powder and the inner hole of the stand column are subjected to effective metallurgical bonding, so that the cladding layer has high malleability and toughness and is low in friction coefficient; and the needs of high-tech development and automatic development of enterprises are met.

Description

technical field [0001] The invention belongs to the technical field of laser cladding methods, and in particular relates to a cladding method for an inner hole of a column. Background technique [0002] Under the influence of the working environment, corrosion, wear and other failures are common in heavy mining equipment, such as hydraulic support column cylinders and other inner hole parts, the inner hole corrosion, wear and other damage will cause major safety hazards and property losses. [0003] At present, the surface repair process of inner hole parts mainly includes diameter reduction method, welding repair method, spraying metal material and inner bushing method, but the above-mentioned procedures are complicated and expensive, and there is a gap between the repaired coating and the substrate. Insufficient inter-bonding force, the coating cannot meet the corresponding thickness requirements, and the inner hole parts cannot meet the application requirements in the eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/106
Inventor 周峰杨庆东李圣文澹台凡亮杨帆宋其伟杜学芸侯庆玲李阳
Owner SHANDONG ENERGY HEAVY EQUIP MFG GRP CO LTD
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