A kind of gauge ring and its preparation method and application

A high-entropy alloy and diamond technology is applied in the field of gauge ring and its preparation, which can solve the problems of few research literatures, and achieve the effects of controllable alloy composition, high hardness and excellent thermal stability performance.

Active Publication Date: 2019-12-27
株洲金韦硬质合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although high-entropy alloys have good advantages as matrix materials, there are few related research literatures on diamond / high-entropy alloy composites.
In particular, there are no relevant reports on the application of diamond / high-entropy alloy composite materials as gauge rings on picks and drill bits

Method used

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  • A kind of gauge ring and its preparation method and application
  • A kind of gauge ring and its preparation method and application
  • A kind of gauge ring and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0055] A kind of high-entropy alloy / diamond composite gauge ring of the present invention, take high-entropy alloy as matrix phase, take diamond as reinforcing phase; Mainly contain Fe, Co, Cr, Ni, Al, Cu6 in the matrix phase high-entropy alloy elements, and the molar amounts of these six elements are equal, and the diamond content is 12wt%.

[0056] The preparation method of the high-entropy alloy / diamond composite gauge ring of the present embodiment comprises the following steps:

[0057] (1) Select Fe, Co, Cr, Ni, Al and Cu plates or blocks with a purity higher than 99.9% (mass percentage), and the molar ratio is Fe:Co:Cr:Ni:Al:Cu=1:1: The ratio of 1:1:1:1 is melted and atomized to obtain high-entropy alloy powder;

[0058] (2) The above-mentioned high-entropy alloy powder is subjected to high-energy ball milling at a rotational speed of 250 rpm for 10 hours. The fluidity of the obtained powder is greater than 20g / s, and the oxygen content is less than 500ppm.

[0059] ...

Embodiment 2

[0065] A kind of high-entropy alloy / diamond composite gage ring of the present invention, take high-entropy alloy as matrix phase, take diamond as reinforcing phase; Mainly contain Fe, Co, Cr, Ni, Al and Cu6 in the matrix phase high-entropy alloy kind of element.

[0066] The preparation method of the high-entropy alloy / diamond composite gauge ring of the present embodiment comprises the following steps:

[0067] (1) Select a plate or block of Fe, Co, Cr, Ni, Al and Cu with a purity higher than 99.9% (mass percentage), and the molar ratio is Fe:Co:Cr:Ni:Al:Cu=1:1 : The ratio of 1:1:0.5:1 is melted and atomized to obtain high-entropy alloy powder;

[0068] (2) The above-mentioned high-entropy alloy powder was subjected to high-energy ball milling at a rotational speed of 250 rpm for 16 hours. The fluidity of the obtained powder is greater than 20g / s, and the oxygen content is less than 500ppm.

[0069] (3) According to the mass ratio of high-entropy alloy: diamond = 4:1, the...

Embodiment 3

[0075] A kind of high-entropy alloy / diamond composite gage ring of the present invention, take high-entropy alloy as matrix phase, take diamond as reinforcing phase; Mainly contain Fe, Co, Cr, Ni, Al and Cu6 in the matrix phase high-entropy alloy kind of element.

[0076] The preparation method of the high-entropy alloy / diamond composite gauge ring of the present embodiment comprises the following steps:

[0077] (1) Select a plate or block of Fe, Co, Cr, Ni, Al, Cu and Zn with a purity higher than 99.9% (mass percentage), and the molar ratio is Fe:Co:Cr:Ni:Al:Cu:Zn = 1: 1: 1: 1: 0.5: 0.5: 1 ratio is melted and atomized to obtain high-entropy alloy powder;

[0078] (2) The above-mentioned high-entropy alloy powder was subjected to high-energy ball milling at a rotational speed of 250 rpm for 18 hours. The fluidity of the obtained powder is greater than 20g / s, and the oxygen content is less than 500ppm.

[0079] (3) According to the mass ratio of high-entropy alloy: diamond ...

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Abstract

The invention belongs to the technical field of special equipment design optimization, and particularly relates to a gauge protection ring and a preparation method and application thereof. The material of the gauge protection ring is a high-entropy alloy / diamond composite. In the high-entropy alloy / diamond composite, diamonds account for 10%-30% of the total mass of the composite, the diamonds areevenly distributed in a high-entropy alloy in a particle shape, and the particle size of diamond particles ranges from 10 micrometers to 150 micrometers; and the high-entropy alloy is prepared from four elements of Fe, Co, Cr and Ni and at least two elements in Cu, Al, Ti and Zn. The gauge protection ring is prepared through a powder metallurgy method, and an obtained product is used as a gauge protection device to be used on a cutting pick or a drill bit. The gauge protection ring is reasonable in component design, a preparation process is simple and controllable, the performance of the obtained product is excellent, the service life of the product is 10 times or above that of an existing cutting pick or drill bit of the same kind, and large-scale industrial application is facilitated.

Description

Technical field: [0001] The invention belongs to the technical field of special equipment design optimization, and in particular relates to a gauge ring, a preparation method and application thereof. Background technique: [0002] Mining picks and drill bits are the key components of large mining machines. They are mainly used in mining fields such as coal mining and roadway excavation. With the increasing demand for resources, large mining machines are used more and more widely. Therefore, mining picks higher performance requirements. Picks and drill bits are one of the vulnerable parts in tunneling machinery, and are the main tools for coal falling and crushing. Significant improvements in pick performance lead directly to lower drilling costs. In mining and drilling fields such as mining and excavating tunnels, rocks and gravel with high hardness are often encountered, resulting in severe wear of the pick and even the loss of the alloy head, which reduces the service li...

Claims

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Application Information

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IPC IPC(8): C22C26/00C22C30/00C22C30/02C22C30/06C22C1/05B22F3/105B22F5/10
CPCB22F3/105B22F5/106B22F2003/1051B22F2998/10C22C1/05C22C26/00C22C30/00C22C30/02C22C30/06B22F9/082B22F2009/043B22F1/0003
Inventor 张伟张明阳刘方舟胡松浩吴浩刘咏
Owner 株洲金韦硬质合金有限公司
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