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Antiwear laser strengthened pick and its processing method

A laser strengthening and anti-wear technology, applied in the field of picks, can solve the problems of matrix wear at the end of picks, short service life, peeling of alloy heads, etc., and achieve the effect of uniform thickness, uniform hardness distribution and stable process

Inactive Publication Date: 2009-03-25
SHANDONG ENERGY HEAVY EQUIP MFG GRP CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Its failure mode is mainly wear failure, and the main form of wear failure is the wear of the matrix at the end of the pick, which eventually leads to the peeling of the alloy head and a short service life

Method used

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  • Antiwear laser strengthened pick and its processing method

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Effect test

Embodiment Construction

[0015] From figure 1 It can be seen that the wear-resistant laser strengthened pick includes a pick body 1 and a hard alloy head 2, and a laser strengthening layer 3 is processed on the conical surface of the pick body.

[0016] Processing method 1: Laser scan the conical surface of the pick body 1 on the laser strengthening equipment (produced by Shenyang Continental Group), the output power of the laser gun is 5kw, the scanning speed is 5mm / min, and the powder feeding rate is 18g / min. Metal powder containing wear-resistant materials is clad onto the conical surface of the pick body 1 to form a laser strengthening layer 3 with a cladding thickness of 3 mm.

[0017] Processing method 2: surface alloying: uniformly coat nano-scale cermet particles on the conical surface of the pick body 1, and use high energy density laser energy beams to remelt the cermet particles and the pick body 1 , so that the cermet particles and the matrix are bonded at a metallurgical level to form a ...

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Abstract

The invention discloses an antiwear laser strengthening cutting pick for a coal mining unit and a processing method thereof. The conical surface of a body of the cutting pick is provided with a laser strengthening layer. The processing method for the antiwear laser strengthening layer comprises the following steps: a laser energy beam is utilized to perform laser cladding, surface alloying or laser quenching strengthening to the conical surface of the cutting pick, thereby improving the hardness and the wear resisting property of the conical position on the end part of the cutting pick, prolonging the wear rate, effectively protecting a hard alloy tool bit, and prolonging the service life of the cutting pick.

Description

technical field [0001] The invention relates to a pick used on a coal mining unit. Background technique [0002] The pick is a key part for directly cutting coal and rock on the mining unit. It is a cone with a hard alloy head inlaid at the tip of the cone. The failure mode is mainly wear failure, and the main form of wear failure is the wear of the matrix at the end of the pick, which eventually leads to the peeling of the alloy head and a short service life. Therefore, improving the wear resistance of the pick end is the key to prolonging the service life. Contents of the invention [0003] In order to solve the problem of wear resistance at the end of the pick, the invention provides an anti-wear laser strengthened pick. [0004] The invention also provides a method for processing the wear-resistant laser-strengthened pick. [0005] An anti-abrasion laser strengthened pick includes a pick body and a hard alloy head, and is characterized in that a layer of laser stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/18C23C24/10C21D1/09C21D9/22
Inventor 朗庆田李希勇李伦实周峰杜伯奇杨庆东王化远董和泉
Owner SHANDONG ENERGY HEAVY EQUIP MFG GRP CO LTD
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