A tin-based babbitt alloy material

A technology of tin-based babbitt alloy and alloy materials, which is applied in the field of tin-based babbitt alloy, can solve the problems of bearing service performance and service life reduction, rapid oxidation of Sb and Sn, delamination and cracking, etc., so as to reduce the formation probability and reduce the Effect of delamination and exfoliation defects, fine grain structure

Active Publication Date: 2017-11-28
云南锡业新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the main components of tin-based Babbitt alloy materials are Sn, Sb, and Cu, no matter the tin-casting method, thermal spraying or surfacing welding process, its service temperature is high, which can easily cause rapid oxidation of Sb and Sn. In addition, Babbitt alloy The delamination and cracking of the superalloy layer are also common problems in the application process, and these problems will eventually lead to the reduction of the performance and life of the manufactured bearings and other parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Configure the tin-based Babbitt alloy in the intermediate frequency furnace according to the following content:

[0021] Antimony 11.0wt.%,

[0022] Copper 6.0wt.%,

[0023] Gallium 0.01wt.%,

[0024] Phosphorus 0.004wt.%,

[0025] Indium 0.005wt.%,

[0026] Nickel 0.05wt.%,

[0027] Tin balance and unavoidable impurities.

[0028] Melt the above-mentioned raw materials at 550-650°C, carry out degassing and impurity-removing refining treatment, then stand still for 30 minutes, take samples to test the chemical composition, and cast alloy ingots at 380-440°C after passing the inspection to obtain tin kiba alloy material.

[0029] The alloy ingot of this example was remelted and poured into bearing bushes, then turned and polished, and the surface morphology was observed. The surface of the test piece was smooth and silvery white, and no obvious slag spots and holes were seen.

Embodiment 2

[0037] Configure the tin-based Babbitt alloy in the intermediate frequency furnace according to the following content::

[0038] Antimony 7.5wt.%,

[0039] Copper 3.5wt.%,

[0040] Gallium 0.02wt.%,

[0041] Phosphorus 0.005wt.%,

[0042] Indium 0.01wt.%,

[0043] Nickel 0.06wt.%,

[0044] Tin balance.

[0045] After melting the above-mentioned raw materials at 650-750°C, carry out degassing and impurity-removing refining treatment, and then stand still for 30 minutes, take samples to test the chemical composition, after passing the inspection, cast them into extrusion ingots at 600-700°C, and then extrude It is prepared into Φ2.0 tin-based babbitt alloy wire through processes such as pressing, rolling, and wire drawing.

[0046] Then the bearing bush was prepared by electric arc spraying process. After turning and polishing, the surface morphology was observed. The surface of the test piece was smooth and silvery white, without any slag spots and holes. Then carry out ...

Embodiment 3

[0054] According to the following content configuration, the tin-based babbitt alloy material is obtained by smelting: 3.0wt.% antimony, 8.5wt.% copper, 0.1wt.% gallium, 0.01wt.% phosphorus, 0.003wt.% indium, 0.03 wt.% nickel, the balance tin and unavoidable impurities.

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PUM

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Abstract

The invention discloses a tin-based Babbitt alloy material. The alloy material contains 3.0-15.0wt.% of stibium, 2.0-9.0wt.% of copper, 0.001-0.1wt.% of gallium, 0-0.02wt.% of phosphorus, 0.001-0.1wt.% of indium and / or 0.03-0.1wt.% of nickel and the balance of tin and unavoidable impurities. The alloy material disclosed by the invention has relatively high oxidation resistance, favorable wettability and bonding property and finer and smaller grain tissues; and no matter a tinning-pouring method, a thermal spraying method or a surfacing process is adopted for preparing a bearing bush, the formation probability of slag points and holes can be remarkably reduced, the layering and stripping defects can be reduced, and the bonding property can be improved.

Description

technical field [0001] The invention relates to the technical field of tin-based babbitt alloy. Background technique [0002] Tin-based Babbitt alloy is an important bearing material, also known as bearing alloy. It has excellent anti-friction characteristics, low hardness, good adaptability and press-fitting property, and can effectively reduce the friction of grinding shaft parts. wear and tear. Therefore, tin-based Babbitt alloys are widely used in sliding bearings of large rotating machinery and crosshead sliding shoes of large compressors. At present, the commonly used process methods for preparing Babbitt alloy layer are mainly tinning-casting method, thermal spraying and surfacing welding, etc., wherein the tinning-casting method uses alloy ingots, and the thermal spraying and surfacing process uses alloy wire. [0003] Since the main components of tin-based Babbitt alloy materials are Sn, Sb, and Cu, no matter the tin-casting method, thermal spraying or surfacing w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C13/02C22C13/00
CPCC22C13/00C22C13/02
Inventor 白海龙赵玲彦彭金志刘宝权吕金梅古列东秦俊虎武信
Owner 云南锡业新材料有限公司
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