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Cobalt-based plasma powder surfacing material, preparation method and application thereof

A surfacing material and plasma technology, applied in the field of surfacing, can solve the problem that cobalt-based alloys and wear-resistant phases cannot be used together, and achieve good wettability and compatibility, good wear resistance, and extreme pressure resistance. strong effect

Active Publication Date: 2022-07-29
KINGDREAM PLC CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides a cobalt-based plasma powder surfacing material and its preparation method and application, in order to solve the problem that the cobalt-based alloy and the wear-resistant phase cannot be used together in the related art, and greatly improve the bearing capacity and wear resistance of the surfacing layer. Damage capacity and impact resistance

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  • Cobalt-based plasma powder surfacing material, preparation method and application thereof
  • Cobalt-based plasma powder surfacing material, preparation method and application thereof
  • Cobalt-based plasma powder surfacing material, preparation method and application thereof

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Embodiment 1

[0033] The raw materials used in the preparation of the cobalt-based plasma powder surfacing material in this embodiment are:

[0034] Cobalt-based alloy powder: The particle size of cobalt alloy powder is 100-325 mesh, the weight percentage of carbon is 2.0%, the weight percentage of chromium is 23.1%, the weight percentage of tungsten is 10.8%, and other elements are nickel, molybdenum, iron, silicon, etc. The sum of the weight percentages is 3.1%, and the balance is cobalt.

[0035] Sintered WC-Co cemented carbide spherical particles: WC powder and cobalt powder are mixed by weight in a proportion of 92% WC + 8% Co, and then mixed and ball-milled. -80 mesh sieve, sintered, and passed through 60-100 mesh sieve to obtain sintered WC-Co cemented carbide spherical particles, the particle size of which is 60-100 mesh, and the weight percentage of cobalt is 8%.

[0036] The specific preparation method of the cobalt-based plasma powder surfacing material of the present embodiment i...

Embodiment 2

[0044] The raw materials used in the preparation of the cobalt-based plasma powder surfacing material in this embodiment are:

[0045] Cobalt-based alloy powder: The particle size of the alloy powder is 100-325 mesh, the weight percentage of carbon is 1.5%, the weight percentage of chromium is 15.3%, the weight percentage of tungsten is 5.9%, and the weight of other nickel, molybdenum, iron, silicon, etc. The sum of the percentages shall not exceed 3.8%, and the balance shall be cobalt.

[0046] Sintered WC-Co cemented carbide spherical particles: WC powder and cobalt powder are mixed by weight in a ratio of 88% WC + 12% Co, and then mixed and ball-milled. 80-mesh sieve, sintered, and passed through a 60-100-mesh sieve to obtain sintered WC-Co cemented carbide spherical particles, the particle size of which is 60-100 mesh, and the weight percentage of cobalt is 12%.

[0047] The specific preparation method of the cobalt-based plasma powder surfacing material of the present em...

Embodiment 3

[0052] The raw materials used in the preparation of the cobalt-based plasma powder surfacing material in this embodiment are:

[0053] Cobalt-based alloy powder: The particle size of the alloy powder is 100-325 mesh, the weight percentage of carbon is 2.6%, the weight percentage of chromium is 30.4%, the weight percentage of tungsten is 15.1%, and the weight of other nickel, molybdenum, iron, silicon, etc. The sum of the percentages shall not exceed 2.6%, and the balance shall be cobalt.

[0054] Sintered WC-Co cemented carbide spherical particles: WC powder and cobalt powder are mixed by weight in a ratio of 96% WC + 4% Co, and then mixed and ball-milled. -80 mesh sieve, sintered, and passed through 60-100 mesh sieve to obtain sintered WC-Co cemented carbide spherical particles, the particle size of which is 60-100 mesh, and the weight percentage of cobalt is 4%.

[0055] The specific preparation method of the cobalt-based plasma powder surfacing material of the present embo...

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Abstract

The invention relates to a cobalt-based plasma powder surfacing material, a preparation method and application thereof. The cobalt-based plasma powder surfacing material uses sintered WC-Co hard alloy particles of 60-100 meshes as a wear-resistant phase, and has a particle size of 100-100 mesh. The 325 mesh cobalt-based alloy powder is a binder phase, wherein the weight percentage of the wear-resistant phase is 20-60%, and the weight percentage of the binder phase is 40-80%. The cobalt-based plasma powder surfacing material provided by the present invention has a perfect combination of wear resistance and impact resistance, and is especially suitable for surface strengthening of sealed bearings with particularly high wear resistance requirements, and can also be used in open environments with particularly high loads. Abrasion resistance.

Description

technical field [0001] The invention relates to the field of surfacing, in particular to a cobalt-based plasma powder surfacing material and a preparation method and application thereof. Background technique [0002] With the continuous development of drilling engineering, mining engineering, construction engineering and geological engineering, mechanical tools have higher and higher requirements on their overall performance, wear resistance of special parts and service life, which has led to the progress of surfacing welding wear resistance enhancement technology. [0003] As we all know, the working state of mechanical tools must be very stable and reliable. Once abnormal failure or early failure occurs, it will bring significant economic losses and even serious safety accidents. However, mechanical tools in harsh working environments usually suffer from very serious wear and tear. The impact and vibration aggravate wear and tear. For example, in drilling engineering, more...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/08C22C19/07C23C24/10C22C1/05C22C1/10B23K10/02
CPCC22C29/08C22C29/067C22C19/07C23C24/103C22C1/05B23K10/027
Inventor 张烈华陈文婷王晋春张兴品
Owner KINGDREAM PLC CO
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