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High-speed steel tool steel and tungsten steel efficient heating fusion method

A fusion method and tool steel technology, applied in the direction of manufacturing tools, metal processing equipment, auxiliary welding equipment, etc., can solve the problems affecting the performance of high-speed steel tool steel, complex preparation process, poor performance of connecting parts, etc.

Pending Publication Date: 2022-06-28
陈承贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a high-efficiency heating and fusion method of high-speed steel tool steel and tungsten steel, aiming to solve the problem that the preparation process of high-performance high-speed steel tool steel and powder metallurgy high-speed steel tool steel is more complicated and cannot be used for high-speed steel tools. The good fusion of steel and tungsten steel leads to poor performance of the connecting part, which will further affect the technical problems of the performance of high-speed steel tool steel

Method used

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  • High-speed steel tool steel and tungsten steel efficient heating fusion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] refer to figure 1 , a high-efficiency heating fusion method of high-speed steel tool steel and tungsten steel, which specifically includes the following steps:

[0023] S1: sintering the tungsten steel section to obtain a tungsten steel sintered body, the tungsten steel raw material includes tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the tungsten steel sintered body The eutectic temperature of the steel sintered body;

[0024] S2: preheating the high-speed steel tool steel to obtain a semi-finished product of the high-speed steel tool steel, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;

[0025] S3: Directly connect the tungsten steel sintered body and the high-speed steel tool steel semi-finished product to obtain a fusion body, and electronically heat the high-speed steel tool steel semi-fin...

Embodiment 2

[0035] A high-speed steel tool steel and tungsten steel high-efficiency heating fusion method, which specifically includes the following steps:

[0036] S1: sintering the tungsten steel section and the high-speed steel tool steel to obtain a tungsten steel sintered body and a semi-finished high-speed steel tool steel mixture;

[0037] S2: the mixture of the tungsten steel sintered body and the high-speed steel tool steel semi-finished product is heated by electronically heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body, and the two metals are fused between 1000-1800 degrees Celsius;

[0038] S3: cooling the fusion body to obtain a finished product obtained by direct fusion of the high-speed steel tool steel raw material and the tungsten steel raw material;

[0039] After directly heating the high-speed steel tool steel and tungsten steel, the obtained mixture is not as good as the fusion body obtained in Example 1.

Embodiment 3

[0041] A high-speed steel tool steel and tungsten steel high-efficiency heating fusion method, which specifically includes the following steps:

[0042] S1: sintering the tungsten steel section to obtain a tungsten steel sintered body, the tungsten steel raw material includes tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the tungsten steel sintered body The eutectic temperature of the steel sintered body;

[0043] S2: preheating the high-speed steel tool steel to obtain a semi-finished product of the high-speed steel tool steel, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;

[0044] S3: Directly connect the tungsten steel sintered body and the high-speed steel tool steel semi-finished product to obtain a fusion body, heat the high-speed steel tool steel semi-finished product and the tungsten steel sinter...

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Abstract

The invention discloses a high-speed steel tool steel and tungsten steel efficient heating fusion method which specifically comprises the following steps: S1, sintering a tungsten steel section to obtain a tungsten steel sintered body, S2, preheating the high-speed steel tool steel to obtain a high-speed steel tool steel semi-finished product, and S3, directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a high-speed steel tool steel semi-finished product; the high-speed steel tool steel semi-finished product and the tungsten steel sintered body are heated through electrons, and the two kinds of metal are fused at the temperature ranging from 1000 DEG C to 1800 DEG C; and S4, cooling the fusion body. The efficient heating and fusing method for the high-speed steel tool steel and the tungsten steel has the technical effects that the high-speed steel tool steel is further machined in a staggered heating mode, the high-speed steel tool steel semi-finished product and the tungsten steel sintered body are heated through electrons, the high-temperature influence on the tungsten steel is avoided, and finally the finished product is obtained after cooling.

Description

technical field [0001] The invention relates to the technical field of welding, in particular to a high-efficiency heating fusion method of high-speed steel tool steel and tungsten steel. Background technique [0002] High-speed steel tool steel has good process performance, good strength and toughness, so it is mainly used to manufacture complex thin-edged and impact-resistant metal cutting tools, as well as high-temperature bearings and cold extrusion dies. For tools with higher hardness requirements, general-purpose high-speed steel tool steels cannot be met, or the service life is short. [0003] Tungsten steel, also known as cemented carbide, refers to a sintered composite material containing at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, and tantalum carbide are common components of tungsten steel. The grain size of the carbide component (or phase) is typically between 0.2-10 microns, and the carbide grains are held t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/00C22C1/05C22C1/10C22C29/08B23K103/04
CPCB23K31/02B23K37/00C22C1/05C22C29/08C22C29/067B23K2103/04
Inventor 陈承贵陈雨河林吉鹏刘红亮潘东兵
Owner 陈承贵
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