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High-plasticity tin-based Babbitt alloy

A tin-based babbitt alloy and high plasticity technology, applied in the field of tin-based babbitt alloy, can solve the problems of low high temperature strength and poor plasticity, and achieve the effect of improving wear resistance

Inactive Publication Date: 2011-10-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low high-temperature strength and poor plasticity of the existing medium-high antimony tin-based babbitt alloy, and the present invention provides a high-plasticity tin-based babbitt alloy

Method used

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0010] Specific implementation mode 1: In this implementation mode, the high-plasticity tin-based Babbitt alloy is composed of 0.05% to 1.5% of Gd, 6% to 10% of Sb, 1% to 6% of Cu, and 0.5% to 1% of Ag and the balance of Sn.

[0011] The high plasticity tin-based babbitt alloy of the present embodiment and existing tin-based babbitt alloy (by the Sb of 6%~10%, the Cu of 1%~6%, the Ag of 0.5%~1% and the Sn of balance composition), under the same test conditions, the elongation increased by 10% to 20%, the strength at room temperature increased by 8% to 18%, the high temperature strength at 200°C increased by 12% to 20%, and the wear resistance increased by more than 35%. .

[0012] The preparation method of the highly plastic tin-based babbitt alloy of the present embodiment is: according to the above mass percentage (0.05%~1.5% of Gd, 6%~10% of Sb, 1%~6% of Cu, 0.5%~1% Ag and the balance of Sn) Weigh Sn, Cu, Sb, Ag and Gd in proportion, heat Sn, Cu, Sb and Ag to 550°C, stir ...

specific Embodiment approach 2

[0013] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the high-plasticity tin-based babbitt alloy is composed of 0.2% to 1.0% of Gd, 6% to 10% of Sb, and 1% to 6% of Cu in terms of mass percentage. , 0.5% to 1% of Ag and the rest of Sn.

specific Embodiment approach 3

[0014] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the high-plastic tin-based babbitt alloy is composed of 0.5% to 1.0% of Gd, 6% to 10% of Sb, and 1% to 6% of Cu in mass percentage , 0.5% to 1% of Ag and the rest of Sn.

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Abstract

The invention discloses a high-plasticity tin-based Babbitt alloy and relates to a tin-based Babbitt alloy. In the invention, the problems of low high-temperature strength and low plasticity of the conventional medium / high-plasticity tin-based Babbitt alloys are solved. The high-plasticity tin-based Babbitt alloy comprises the following components in percentage by mass: 0.05 to 1.5 percent of Gd, 6 to 10 percent of Sb, 1 to 6 percent of Cu, 0.5 to 1 percent of Ag and the balance of Sn. In the invention, the addition of Gd into the Babbitt alloy can improve the plasticity of the alloy. Compared with the conventional tin-based Babbitt alloy, under the same test condition, the coefficient of elongation is improved by 10 to 20 percent, the strength at room temperature is improved by 8 to 18 percent, the strength at a high temperature of 200 DEG C is improved by 12 to 20 percent, and the wear resistance is improved by over 35 percent. The high-plasticity tin-based Babbitt alloy can be used as a bearing bush material and also can be drawn into wires which can be used as deposition materials.

Description

technical field [0001] The invention relates to a tin-based Babbitt alloy. Background technique [0002] Babbitt alloys (including tin-based bearing alloys and lead-based bearing alloys) are the most widely known bearing materials, tin-based and lead-based bearing alloys with antifriction properties. The main alloy components are tin, lead, antimony and copper. Antimony, copper, used to increase the strength and hardness of the alloy. The strength and hardness of lead-based alloys are lower than those of tin-based alloys, and their corrosion resistance is also poor, so tin-based babbitt alloys are used more. In addition to making sliding bearings, Babbitt alloys are often sprayed with wire or powder on steel and other substrates to make bearing bushes because of their soft texture and low strength. However, the bonding strength of the sprayed coating substrate after treatment is low, and it cannot withstand alternating loads and impact loads. The surface preparation requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C13/00C22C13/02
Inventor 何鹏林铁松陆凤姣
Owner HARBIN INST OF TECH
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