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Laser thermal treatment process for skid shoe of coal cutter

A technology of laser heat treatment and coal mining machine, which is applied in the field of heat treatment, can solve the problems of increasing the use and maintenance cost of coal mining machine, short service life of sliding shoes, and affecting the efficiency of coal mining, so as to reduce the number of replacements, save time, The effect of ensuring production efficiency

Inactive Publication Date: 2015-08-19
WUHU DINGHAN REMFR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The shearer shoe is located on the side of the shearer close to the coal wall. It is used to support the shearer and can slide on the shoveling plate of the conveyor chute. Due to the frequent use of the slide shoe, the loss of the slide shoe is serious. After a period of use After a period of time, it is urgent to replace it, otherwise it will cause a safety accident. During the replacement, the shearer needs to stop working, which seriously affects the efficiency of coal mining, and the service life of the sliding shoes is also short. Serious waste of resources increases the cost of using and maintaining the shearer

Method used

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  • Laser thermal treatment process for skid shoe of coal cutter

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Embodiment 1

[0016] A laser heat treatment process for a shearer shoe, comprising:

[0017] (1) Pre-treatment: Clamp the shoe on the machine tool, clean the working surface of the shoe and the oil and rust on the outer surface of the shoe;

[0018] (2) Phosphating: Phosphating treatment is carried out on the surface of the slide shoe;

[0019] (3) sand blasting: if the damage on the surface of the sliding shoe is dark, then select electric arc or spray welding to make the bottom; select nickel-chromium-aluminum wire for use when the described electric arc makes the bottom; select Ni60 wire for use when the described spray welding makes the bottom;

[0020] (4) Observe and measure the range of the slide shoe to be repaired, program in the control cabinet according to the measurement results, write the scanning speed and rotation speed into the PLC control system, and adopt automatic control to realize real-time control of laser cladding, The quality of cladding is ensured, and compared wit...

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Abstract

The invention relates to a laser thermal treatment process for skid shoe of a coal cutter, which comprises (1) early stage processing; (2) phosphorization; (3) sand blasting; (4) observing and measuring a range to be repaired of the skid shoe, programming in a control cabinet according to the measuring result, and programming a coverage rate and a rotary speed into a PLC (programmable logic controller) system; (5) turning on an air source, outputting carbon dioxide, nitrogen, and helium, and adjusting the output and gas pressure of the gases; (6) turning on a laser machine, and adopting iron-base powder as a cladding material; (7) post processing. The abraded skid shoe is further treated, so as to ensure that the reproduced skid shoe accords with the performance requirements, and recycle and reuse of the skid shoe are realized, and resource waste is avoided; the iron-base powder is adopted as the cladding material, so the service life of the skid shoe is prolonged by more than three times of the original service life, the replacement times are effectively reduced, and the production efficiency is ensured.

Description

technical field [0001] The invention relates to the technical field of heat treatment, in particular to a laser heat treatment process for a shearer shoe. Background technique [0002] The shearer shoe is located on the side of the shearer close to the coal wall. It is used to support the shearer and can slide on the shoveling plate of the conveyor chute. Due to the frequent use of the slide shoe, the loss of the slide shoe is serious. After a period of use After a period of time, it is urgent to replace it, otherwise it will cause a safety accident. During the replacement, the shearer needs to stop working, which seriously affects the efficiency of coal mining, and the service life of the sliding shoes is also short. Serious waste of resources increases the use and maintenance costs of the shearer. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a laser heat treatment process for the shearer shoe, and to carry ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
Inventor 程敬卿
Owner WUHU DINGHAN REMFR TECH
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