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Manufacturing method for reinforced cutting tooth

A pick and cermet technology, applied in the field of mechanical processing, can solve the problems of reducing production efficiency and increasing mining costs, and achieve the effects of improving production efficiency, reducing replacement and maintenance time, and improving strength

Inactive Publication Date: 2017-06-13
TANGSHAN CITY FENGNAN DISTRICT TIANZE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process, a large number of pick consumption not only increases the mining cost, but also reduces the production efficiency

Method used

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  • Manufacturing method for reinforced cutting tooth
  • Manufacturing method for reinforced cutting tooth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Degrease the surface of the pick and clean it with alcohol;

[0019] (2) prepare cermet alloy powder, the mass percent of each component of cermet alloy powder is: nickel clad diamond 4%, Cr 13%, Si 2%, Mo 3%, balance is Fe, and powder particle size is 100~320 orders ;

[0020] (3) Put the prepared cermet alloy powder into a mechanical three-dimensional powder mixer and mix thoroughly, and the mixing time is 3 hours;

[0021] (4) Fix the pick on the positioner, and carry out laser cladding on the high-power semiconductor laser processing tooling platform. The cladding process adopts gravity preset powder feeding, and the thickness of the cermet alloy powder is 1.5mm; use high-power semiconductor The high-energy beam output by the laser scans and transports the cermet alloy powder in step (3) in place, so that the cermet alloy powder and the surface metal of the pick have a rapid metallurgical reaction to obtain a uniform wear-resistant and anti-corrosion ceramic al...

Embodiment 2

[0026] (1) Degrease the surface of the pick and clean it with alcohol;

[0027] (2) prepare cermet alloy powder, the mass percentage of each component of cermet alloy powder is: nickel-coated diamond 6%, Cr 13%, Si 2.5%, Mo 3%, the balance is Fe, and the powder particle size is 100~320 orders ;

[0028] (3) Put the prepared cermet alloy powder into a mechanical three-dimensional powder mixer and mix thoroughly, and the mixing time is 3 hours;

[0029] (4) Fix the pick on the positioner, and carry out laser cladding on the high-power semiconductor laser processing tooling platform. The cladding process adopts gravity preset powder feeding, and the thickness of the cermet alloy powder is 2mm; use a high-power semiconductor laser The output high-energy beam scans the metal-ceramic alloy powder delivered in step (3), so that the metal-ceramic alloy powder and the pick surface metal undergo a rapid metallurgical reaction to obtain a uniform wear-resistant and corrosion-resistant c...

Embodiment 3

[0033] (1) Degrease the surface of the pick and clean it with alcohol;

[0034] (2) prepare cermet alloy powder, the mass percent of each component of cermet alloy powder is: nickel-coated diamond 5%, Cr 14%, Si 3.5%, Mo 5%, the balance is Fe, and the powder particle size is 100~320 orders ;

[0035] (3) Put the prepared cermet alloy powder into a mechanical three-dimensional powder mixer and mix thoroughly, and the mixing time is 3 hours;

[0036] (4) Fix the pick on the positioner, and carry out laser cladding on the high-power semiconductor laser processing tooling platform. The cladding process adopts gravity preset powder feeding, and the thickness of the cermet alloy powder is 1.6mm; use high-power semiconductor The high-energy beam output by the laser scans and transports the cermet alloy powder in step (3) in place, so that the cermet alloy powder and the surface metal of the pick have a rapid metallurgical reaction to obtain a uniform wear-resistant and anti-corrosio...

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Abstract

The invention discloses a manufacturing method for a reinforced cutting tooth. The manufacturing method comprises the following steps of: (1) pre-processing the surface of the cutting tooth, and cleaning the surface of the cutting tooth; (2) preparing metal ceramic alloy composite powder which consists of the following components in percentage by mass: 4-6% of nickel-clad diamond, 12-14% of Cr, 2-3.5% of Si, 3-5% of Mo and the balance Fe; (2) putting prepared metal ceramic composite powder into a mechanical type three-dimensional powder mixer to sufficiently mix; (4) fixing the cutting tooth onto a positioner, and performing laser cladding on a large-power semiconductor laser processing tool platform; and (5) putting the clad cutting tooth into a slow cooling box to slowly cool. The manufacturing method is advanced in process, is free of pollution and is low in cost, and can improve wear resistance, corrosion resistance and impact resistance of the tooth head of the cutting tooth in multiplies, so that the service life of the cutting tooth is prolonged.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a preparation method of a reinforced pick. Background technique [0002] With the improvement of the mechanization of coal mine production, the selection and use of cutting tools for fully mechanized mining equipment is particularly important. Picks are key components for directly cutting coal rocks on fully mechanized mining units. Their service conditions are harsh and they are in direct contact with coal seams during work , not only to effectively break coal and soft rock, but also to excavate in medium-hard semi-coal rock, so the wear is serious. In the production process, a large number of pick consumption not only increases the mining cost, but also reduces the production efficiency. [0003] The failure modes of picks are: after the pick tooth head wears, the carbide tip falls off, the tooth tip breaks, and the tooth body bends or breaks. Among t...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C38/44C22C38/02C22C26/00
CPCC23C24/103C22C26/00C22C38/34C22C38/44
Inventor 张云江付宇明王祺张扬
Owner TANGSHAN CITY FENGNAN DISTRICT TIANZE SCI & TECH
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