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An environmentally friendly and high load-bearing tin-based babbitt alloy material for arc deposition

A tin-based babbitt and arc deposition technology, applied in the field of tin-based babbitt, can solve the problems of low fatigue strength, unenvironmental protection, poor bearing performance of tin-based babbitt, etc. The effect of grain, excellent toughness

Active Publication Date: 2021-03-09
ZHANGJIAGANG DONGDA IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of poor bearing performance, low fatigue strength and environmental protection of existing tin-based babbitt alloys, and provide a tin-based babbitt alloy material suitable for arc deposition technology

Method used

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  • An environmentally friendly and high load-bearing tin-based babbitt alloy material for arc deposition
  • An environmentally friendly and high load-bearing tin-based babbitt alloy material for arc deposition
  • An environmentally friendly and high load-bearing tin-based babbitt alloy material for arc deposition

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1: An environment-friendly high-load-bearing tin-based babbitt material for arc deposition, which includes the following components in mass percentages: Sb: 11.5%, Cu: 6.1%, Zn: 1.5%, Ag: 0.2 %, the balance is Sn. The hardness of the tin-based babbitt alloy coating layer obtained in this embodiment is 39HB, and that of ordinary ZChSnSb11-6 is 29HB, which is 34.5% higher than that. The tin-based Babbitt alloy bimetal prepared in this embodiment is made into a tensile sample, and the sample is tested for tensile strength on a CMT5105 microcomputer-controlled electronic universal testing machine. The tensile rate is 1mm / min, and the tensile strength is 1105 -1180Mpa, compared with ordinary ZChSnSb11-6, the tensile strength of the bimetal is increased by 22.8-31.1%.

[0026] Depend on image 3 , Figure 4 It can be seen from observation that the crystal grains of the tin-based babbitt alloy material of the present invention have been significantly refined by t...

Embodiment 2

[0028] Embodiment 2: An environment-friendly high-load-bearing tin-based babbitt material for arc deposition, which includes the following components in mass percentages: Sb: 11.5%, Cu: 6.2%, Zn: 1.0%, Ag: 0.1 %, the balance is Sn. The hardness of the babbitt alloy coating layer obtained in this embodiment is 38HB, and that of ordinary ZChSnSb11-6 is 29HB, which is 31% higher than that. Using the same test method as in Example 1, the performance test of the tin-based Babbitt alloy of the present example is carried out, and the tensile strength obtained is 1101-1150Mpa. Compared with ordinary ZChSnSb11-6, the tensile strength of the bimetal has increased by 22.7- 27.8%.

Embodiment 3

[0029] Embodiment 3: An environment-friendly high-load-bearing tin-based babbitt material for arc deposition, which includes the following components in mass percentages: Sb: 11.5%, Cu: 6.5%, Zn: 1.5%, Ag: 0.5% %, the balance is Sn. The hardness of the babbitt alloy coating obtained in this embodiment is 36.5HB, and that of ordinary ZChSnSb11-6 is 29HB, which is 28.5% higher than that. Using the same test method as in Example 1, the tin-based babbitt alloy of the present embodiment is tested for performance, and the tensile strength obtained is 1060-1127Mpa. Compared with ordinary ZChSnSb11-6, the tensile strength of the bimetal has improved by 17.8- 25.2%.

[0030] The ZChSnSb11-6 or ordinary ZChSnSb11-6 mentioned in this application document are all the same substance, and there is this grade in the national standard of Babbitt alloy, so those skilled in the art will see ZChSnSb11-6 or ordinary ZChSnSb11-6 Specific material standards will come to mind when a brand is selec...

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Abstract

The invention discloses an environment-friendly high-load-bearing tin-based Babbitt alloy material for arc deposition, which solves the problems of poor load-bearing capacity and low fatigue strength of the existing Babbitt alloy, and comprises the following components in mass percentage: Sb: 6 ‑15%, Cu: 2‑8%, Zn: 0.1‑3.0%, Ag: 0.1‑2.0%, the balance is Sn; after arc deposition, the average size of tin-based babbitt alloy square SnSb phase is less than 10um, dispersed The Cu6Sn5 phase does not have any orientation. In the present invention, Zn and Ag are added to the tin-based babbitt alloy to replace the currently commonly used babbitt alloying elements As, Cd and other elements that have great pollution to the environment. The babbitt alloy of the present invention not only refines the crystal grains, It improves the wear resistance, and also has excellent toughness and weldability; it can greatly reduce spatter when used in the arc deposition process, the appearance of the weld is beautiful and tidy, and the resulting deposited layer has a strong bearing capacity and high fatigue strength.

Description

technical field [0001] The invention belongs to the technical field of tin-based babbitt alloy, and in particular relates to an environment-friendly and high-load-bearing tin-based babbitt alloy used in arc deposition technology. Background technique [0002] In engineering practice, the carrying capacity of a bearing usually refers to the limit load that causes the structure to lose its working performance under given conditions. For a certain type of sliding bearing, its carrying capacity can be determined according to the load that causes the plastic flow of the bearing material; internal combustion engine sliding bearings The bearing capacity of the bearing is usually expressed by the specific pressure of the bearing material (bearing load / projected area of ​​the bearing). The fatigue strength of the bearing material refers to the strength of failure after a certain period of time under the long-term cyclic stress under the working conditions of the bearing pad. Therefo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C13/02
CPCC22C13/02
Inventor 周健孙凯陈晨薛烽白晶
Owner ZHANGJIAGANG DONGDA IND TECH RES INST
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