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Bearing material and preparation method thereof

A bearing material and heat treatment method technology, applied in the field of material preparation, can solve the problems of discomfort, poor thermal erosion resistance, poor oxidation resistance, poor toughness, etc.

Active Publication Date: 2010-04-28
INST OF MAGNETIC DEVICES GANSU ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this material has considerable wear resistance, its heat erosion resistance and oxidation resistance are slightly poor, especially the toughness of this material is poor, and it is not suitable for some special applications.

Method used

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  • Bearing material and preparation method thereof
  • Bearing material and preparation method thereof
  • Bearing material and preparation method thereof

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Embodiment Construction

[0008] Examples of the invention are provided below.

[0009] The tungsten, cobalt, nickel, titanium, carbon, boron and iron powder are mixed in proportion, fully stirred evenly, and sintered by static pressure molding. The weight of tungsten, cobalt, nickel and titanium accounts for 95% of the total weight of the material, and the ratio of tungsten: cobalt plus nickel: titanium is 6: 1.9: 1.5, carbon, boron, and iron account for 5% of the total weight of the material, and carbon : The weight ratio of boron: iron is 5.1:3.2:1.7, and the weight ratio of cobalt to nickel is 1.87:0.03~1.8:0.1

[0010] After the material is made, it is heated to 650°C ± 10°C and tempered at high temperature for 2 to 4 times.

[0011] Depend on Figure 1 to Figure 4 It can be seen that after three tempering treatments, the structure of the material of the present invention is refined, and it can be clearly seen from the micrograph that the uniformity of the grain-refined alloy is improved, and th...

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Abstract

The invention discloses a bearing material composed of tungsten, cobalt, titanium, carbon, boron and ferrum and also discloses a preparation method of the material. The bearing material of the invention is composed of W, Co, Ni, Ti, C, B and Fe, wherein W, Co, Ni and Ti account for 95% of total weight, and C, B and Fe account for 5% of total weight; the weight ratio of W to sum of Co and Ni to Ti is 6:1.9:1.5, and weight relative ratio is 6:2:1.5 (the weight of Ni); the weight ratio of C to B to Fe is 5.1:3.2:1.7; and the weight ratio of Co to Ni is 1.87:0.03-1.8:0.1.

Description

technical field [0001] The present invention relates to a material and a preparation method of the material. Specifically, the present invention relates to a bearing material composed of tungsten, cobalt, titanium, carbon, boron and iron, and a preparation method of the material. Background technique [0002] Chinese invention patent 200510022729.X discloses a cylinder liner for a mud pump, especially a mud pump used in oil exploitation, and a preparation method thereof. This material has high heat resistance and high wear resistance, so it can also be used as bearing material, especially sliding bearing material. The material is made of tungsten-cobalt-titanium alloy, wherein the ratio of tungsten: cobalt: titanium is 6:2:1.5, and in the alloy there are elements such as carbon, boron, and iron accounting for 3% of the total weight of the alloy, among which carbon, boron, iron The relative ratio of iron: boron: carbon is 4.8~5.3:2.0~2.5:1.5~1.8. Although this material has ...

Claims

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Application Information

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IPC IPC(8): C22C27/04C22C1/05C21D1/18
Inventor 赵克中闫雪兰韩爱国
Owner INST OF MAGNETIC DEVICES GANSU ACAD OF SCI
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