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A kind of cemented carbide top hammer manufacturing process

A cemented carbide top hammer and manufacturing process technology, which is applied in the field of cemented carbide top hammer manufacturing technology, can solve the problem of low peripheral strength of the cemented carbide top hammer, and achieve the effect of strengthening the strength

Active Publication Date: 2018-12-28
ZHEJIANG HENGCHENG CEMENTED CARBIDE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cemented carbide top hammer manufacturing process, which can effectively solve the problem of low peripheral strength of the existing cemented carbide top hammer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A cemented carbide anvil manufacturing process comprises the following steps in sequence:

[0013] A. Dewax the configured anvil blanks: normal pressure, hydrogen gas flow, hydrogen flow rate 1.0L / min, start from room temperature and uniformly heat up to 200°C after 210 minutes, and then uniformly heat up to 300°C after 120 minutes, Then after 240 minutes, the temperature was evenly raised to 380°C, and the temperature was kept for 90 minutes, and then after 210 minutes, the temperature was evenly raised to 650°C, and then after 180 minutes, the temperature was evenly raised to 780°C, and then cooled to room temperature with the furnace;

[0014] B. Mix styrene-butadiene rubber and No. 120 gasoline according to the mass ratio of 1:8, stir evenly, so that the styrene-butadiene rubber is completely dissolved in the gasoline, and soak the anvil semi-finished product processed in step A in the above-mentioned gasoline containing styrene-butadiene rubber Medium for 10 second...

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Abstract

The invention discloses a manufacturing technique for a hard alloy anvil. The manufacturing technique sequentially comprises the following steps that A, a matched anvil blank is subject to de-waxing; B, butadiene styrene rubber and 120# gasoline are matched according to the mass ratio being 1:8, even stirring is carried out to enable the butadiene styrene rubber to be completely dissolved into the gasoline, an anvil semi-finished product treated in the step A is soaked into the gasoline containing the butadiene styrene rubber, and the anvil semi-finished product is taken out to be naturally dried; and C, the anvil semi-finished product obtained after drying in the step B is sintered to obtain the finished product. The manufacturing technique has the beneficial effects that the glue soaking process is added between the de-waxing process and the sintering process, carbon complementing is carried out on an outer layer of the hard alloy anvil, the carbon content of the outer layer of the hard alloy anvil obtained after sintering is increased, and the strength of the periphery of the hard alloy anvil is strengthened under the condition that the center mechanical property of the hard alloy anvil is guaranteed to be unchanged.

Description

technical field [0001] The invention relates to a manufacturing process of a cemented carbide top hammer. Background technique [0002] The cemented carbide anvil is an important part of the production of artificial diamond devices, and it is subjected to alternating loads of high temperature and high pressure during the diamond synthesis process. The traditional work is used to manufacture the cemented carbide anvil, and the continuous heating method is adopted in the wax removal process. After reaching the highest temperature, the sintering process will be carried out after cooling with the furnace, which will cause high carbon content in the middle of the cemented carbide anvil and low carbon content in the outer circumference, resulting in low peripheral strength and affecting the overall mechanical properties. Contents of the invention [0003] The purpose of the present invention is to provide a cemented carbide top hammer manufacturing process, which can effectively...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/10
CPCB22F3/1003B22F3/1007B22F3/1021B22F2999/00B22F2201/20B22F2207/15B22F2201/013
Inventor 曹丽强金益民吴晓娜郭伟波
Owner ZHEJIANG HENGCHENG CEMENTED CARBIDE CO LTD