Hard alloy cutting pick

A cemented carbide and impurity technology, applied in the field of cemented carbide picks, can solve the problems of affecting the working efficiency of coal mining devices, increasing the cost of coal production, and spending too much time. long life effect

Inactive Publication Date: 2018-05-29
湖州南浔昊骏金属制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the picks will be repeatedly and directly impacted and rubbed by the coal mine in the broken coal mine, the wear is serious, and the service life is often short, so the worn picks need to be replaced frequently, and there are usually many picks on the rotating mechanism of the coal mining device. Therefore, it takes too much time to replace the pick every time, which affects the working efficiency of the coal mining device and increases the production cost of coal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A cemented carbide pick, characterized in that: comprising the following components in weight percent:

[0039] Carbon 0.5%

[0040] Titanium 0.06%

[0041] Chromium 1.2%

[0042] Nickel 4.2%

[0043] Manganese 0.32%

[0044] Silicon 0.42%

[0045] Bismuth 0.022%

[0046] Vanadium 0.028%

[0047] Phosphorus 0.019%

[0048] Boron 3.95%

[0049] Scandium 0.035%

[0050] Cerium 0.028%.

[0051] The balance is iron and unavoidable impurities.

Embodiment 2

[0053] A cemented carbide pick, characterized in that: comprising the following components in weight percent:

[0054] Carbon 0.65%

[0055] Titanium 0.12%

[0056] Chromium 1.6%

[0057] Nickel 5.8%

[0058] Manganese 0.32%

[0059] Silicon 0.35%

[0060] Bismuth 0.01%

[0061] Vanadium 0.025%

[0062] Phosphorus 0.016%

[0063] Boron 3.8%

[0064] Scandium 0.03%

[0065] Ce 0.025%.

[0066] The balance is iron and unavoidable impurities.

Embodiment 3

[0068] A cemented carbide pick, characterized in that: comprising the following components in weight percent:

[0069] Carbon 0.58%

[0070] Titanium 0.08%

[0071] Chromium 1.4%

[0072] Nickel 4.8%

[0073] Manganese 0.28%

[0074] Silicon 0.38%

[0075] Bismuth 0.02%

[0076] Vanadium 0.026%

[0077] Phosphorus 0.017%

[0078] Boron 3.89%

[0079] Scandium 0.033%

[0080] Cerium 0.026%.

[0081] The balance is iron and unavoidable impurities.

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PUM

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Abstract

The invention discloses a hard alloy cutting pick, which is characterized by being prepared from, by weight percent, 0.5-0.65% of carbon, 0.06-0.12% of titanium, 1.2-1.6% of chrome, 4.2-5.8% of nickel, 0.26-0.32% of manganese, 0.35-0.42% of silicon, 0.01-0.022% of bismuth, 0.025-0.028% of vanadium, 0.016-0.019% of phosphorus, 3.8-3.95% of boron, 0.03-0.035% of scandium, and 0.025-0.028% of cerium;the allowance is iron and unavoidable impurities. The intensity, hardness and wear resistance of the hard alloy cutting pick are significantly improved, the service life is greatly extended, and themining cost is reduced.

Description

technical field [0001] The invention relates to a metal material, in particular to a cemented carbide pick. Background technique [0002] The pick is a tool used for breaking rocks and dropping coal, cutting coal rocks, and crushing coal on coal mining devices such as coal mining machines, roadheaders, and coal plows in the coal industry. The pick is usually installed and fixed on the pick seat, and the rotating mechanism of the coal mining device drives the pick to rotate together. The rotating pick directly cuts the coal rock. Export coal. Because the picks will be repeatedly and directly impacted and rubbed by the coal mine in the broken coal mine, the wear is serious, and the service life is often short, so the worn picks need to be replaced frequently, and the rotating mechanism of the coal mining device is usually equipped with many picks. Therefore, it takes too much time to replace the pick every time, which affects the working efficiency of the coal mining device ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/50C22C38/04C22C38/02C22C38/46C22C38/54
CPCC22C38/50C22C38/002C22C38/005C22C38/02C22C38/04C22C38/46C22C38/54
Inventor 朱振华
Owner 湖州南浔昊骏金属制品厂
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