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Heat treatment method for knife-edge tungsten carbide

A technology of tungsten carbide and tungsten carbide materials, used in heat treatment furnaces, heat treatment equipment, coatings, etc., can solve the problems of short service life, easy wear of the knife edge, low tool hardness, etc. The effect of high hardness

Inactive Publication Date: 2007-10-24
BMAN MFG ZHE JIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for heat treatment of knife-edge tungsten carbide, which is used to solve the problems existing in the prior art such as many production links, long production time, high production cost, low tool hardness, easy wear of the knife edge, and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Electric injection of tungsten carbide material on one side of the knife edge, heat treatment of the tool, wherein the hardness of one side of the knife edge is HR c 65 degrees, the depth of the tungsten carbide material on the surface of the knife edge is 0.01 mm, and the product of the present invention can be obtained.

Embodiment 2

[0014] Electric injection of tungsten carbide material on one side of the knife edge, heat treatment of the tool, wherein the hardness of one side of the knife edge is HR c 80 degrees, the depth of the tungsten carbide material on the surface of the knife edge is 0.03 mm, and the product of the present invention can be obtained.

Embodiment 3

[0016] Electric injection of tungsten carbide material on one side of the knife edge, heat treatment of the tool, wherein the hardness of one side of the knife edge is HR c 85 degrees, the depth of the tungsten carbide material on the surface of the knife edge is 0.04 mm, and the product of the present invention can be obtained.

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PUM

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Abstract

The present invention relates to cutting tool heat treating method and the edge WC heat treatment method aims at simplifying production process, shorting production period, lowering production cost, raising the hardness and wear resistance of cutting tool and prolonging the service life. The cutting tool edge is electrically deposited with WC material and heat treated to result in single edge hardness of HRc 65-85 and WC material thickness in the edge of 0.01-0.04. The present invention is used in mainly surface performance optimization of metal parts.

Description

technical field [0001] The invention relates to a metal heat treatment method, in particular to a tool heat treatment method. Background technique [0002] Heat treatment is a technical subject that utilizes the law of metal solid-state phase transition to make the metal change with temperature and undergo structural transformation to improve and control the physical, chemical and mechanical properties of the metal. Heat treatment can be divided into three categories: general heat treatment, chemical heat treatment and deformation heat treatment. Chemical heat treatment is to use the diffusion in metal and the formation of alloy phase to make metal infiltrate different elements from the surface in a specific controllable medium, change the chemical composition and structure of the metal surface layer, and use it in subsequent heat treatment The metal undergoes the desired phase transition. The elements that are usually infiltrated are: carbon, nitrogen, boron, oxygen, sulf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C12/02C21D9/22
Inventor įŽ€į…œį’‹
Owner BMAN MFG ZHE JIANG