Environment-friendly high-loading-capacity Sn-based babbitt alloy material used for electrical arc deposition

A tin-based babbitt alloy, arc deposition technology, applied in the field of tin-based babbitt alloy, can solve the problems of low fatigue strength, environmental protection, poor bearing performance of tin-based babbitt alloy, etc., achieve high fatigue strength, fine grain particle size, excellent toughness effect

Active Publication Date: 2019-07-12
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 new type of tin-based babbitt alloy material suitable for arc deposition technology

Method used

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  • Environment-friendly high-loading-capacity Sn-based babbitt alloy material used for electrical arc deposition
  • Environment-friendly high-loading-capacity Sn-based babbitt alloy material used for electrical arc deposition
  • Environment-friendly high-loading-capacity Sn-based babbitt alloy material used for electrical arc deposition

Examples

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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 layer 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 performance test of the tin-based Babbitt alloy of the present example is carried out, and the tensile strength obtained is 1060-1127Mpa. Compared with ordinary ZChSnSb11-6, the tensile strength of the bimetal has increased 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...

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Abstract

The invention discloses an environment-friendly high-loading-capacity Sn-based babbitt alloy material used for electrical arc deposition. The problems that an existing babbitt alloy is poor in loadingcapacity and low in fatigue strength are solved. The material comprises the following components including, by mass percent, 6-15% of Sb, 2-8% of Cu, 0.1-3.0% of Zn, 0.1-2.0% of Ag and the balance Sn. After electrical arc deposition is performed, the square SnSb phase average size of a Sn-based babbitt alloy is smaller than 10 [mu]m, and the dispersed Cu6Sn5 phase has no orientation. According tothe environment-friendly high-loading-capacity Sn-based babbitt alloy material used for electrical arc deposition, Zn and Ag are added into the Sn-based babbitt alloy and replace currently frequently-used babbitt alloy elements such as As and Cd which pollute the environment severely; in terms of the babbitt alloy provided by the invention, the crystalline grain is refined, the abrasion resistance is improved, and the tenacity and weldability are also good; and after the material is used in the electrical arc deposition process, spatter can be greatly reduced, the weld seam appearance is attractive and neat, and an obtained deposition layer is high in loading capacity and 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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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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