Wearproof point attack bit and processing method thereof

A processing method and wear-resistant pick-type technology, applied in metal processing equipment, cutting machinery, manufacturing tools, etc., can solve the problems of difficult to control the quality of the pick tip, high pick cost, limited materials, etc. Low cost, lower production cost, avoid the effect of tooth tip falling off

Inactive Publication Date: 2007-08-22
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Due to the need for cold-fitting of hard alloy tooth tips, the process is relatively complicated, and the quality of the tooth tip of the pick is difficult to control; (2) Since the processing method is implemented within the range of alloy steel tooth body and cemented carbide tooth tip materials, The innovation of the production method is restricted by the material; (3) Due to the complicated process and limited materials, the cost of the processed pick is high; (4) Since the hard tooth tip is cold-fitted, it often falls off during use

Method used

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Embodiment Construction

[0020] The technical solution of the present invention will be described in detail below in conjunction with specific embodiments.

[0021] The wear-resistant tooth tip of the present invention is processed by the following method:

[0022] ①Tooth blanking→②Forging→③Machining→④Tooth head fusion welding wear-resistant alloy→⑤Grinding tooth tip→⑥Heat treatment of tooth body→⑦Surface anticorrosion treatment.

[0023] The specific implementation of above-mentioned operation is:

[0024] ①Tooth blanking: Alloy structural steel rods are selected as raw materials, and the blanking volume is calculated according to the volume of the pick blank;

[0025] ②Forging: According to the forging temperature of the selected alloy structural steel, hot forge the tooth body blank;

[0026] ③Mechanical processing: Cut out the shape of the tooth body on the lathe according to the drawing requirements;

[0027] ④ Welding wear-resistant alloy at the head of the tooth: In the center hole at the to...

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PUM

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Abstract

The present invention discloses a wear-resisting cutting pick and its production method. Said production method includes the following steps: adopting high-energy beam irradiation to make cutting pick head portion formed by means of a certain processing method be formed into a melting bath, at the same time feeding wear-resisting alloy powder into said melting bath, making the wear-resisting alloy powder and said melting bath be molten together, mixed and solidified so as to form the wear-resisting alloy pick head, then sharpening the pick head, making heat treatment and anticorrosive treatment so as to obtain the invented wear-resisting cutting pick.

Description

technical field [0001] The invention relates to a spiral drum shearer, in particular to a pick-shaped pick for the shearer. Background technique [0002] Chinese Patent Publication No. (applied and authorized by the applicant, application number: 00310114444.X) discloses "a production process for pick-shaped picks", which includes the following steps: ① Tooth cutting → ② Forging → ③ Mechanical processing → ④ Ion beam cladding wear-resistant alloy coating on the surface of the tooth body → ⑤ Heat treatment of the tooth body → ⑥ Restoration of blind holes → ⑦ Cold fitting of hard alloy tooth tips → ⑧ Surface anti-corrosion treatment, the alloy coating is composed of Cr, Composed of Ni, W, Mo, V, C, Ti, B, Si, WC, TiC and other components. The advantage of this processing method is that a high-alloy protective layer is clad around the hard alloy tooth tip to prolong the service life of the tooth tip; , It also avoids the cracks caused by the hardening and cooling of the cemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/18B23K9/04C23C24/10B22F9/00C22F1/00C23F17/00
Inventor 李惠琪
Owner SHANDONG UNIV OF SCI & TECH
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