Welding repairing method for tin-based bearing alloy bearing bush

A tin-based bearing alloy, welding repair technology, applied in welding equipment, arc welding equipment, metal processing equipment and other directions, can solve the problems of inability to repair the base metal, repair is limited to the surface, complex operation process, etc., to improve the repeated use High efficiency, ideal repair results, and simple operation

Inactive Publication Date: 2017-09-05
CSSC GUANGZHOU WENCHONG DOCKYARD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, oxyacetylene brazing and soldering iron welding are prone to undercut, incomplete penetration and pores
In particular, the oxyacetylene brazing process is complicated, it is easy to damage the parent body, and it may cause the volatilization of tin in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] The welding repair method of the tin-based bearing alloy bearing bush of this embodiment includes the following steps:

[0032] S1: Preparation of welding wire: The bearing material to be repaired is a tin-based bearing alloy of model ZSnSb11Cu6, and ZSnSb11Cu6 babbitt alloy material is used to smelt homemade welding wire. The method of homemade welding wire is:

[0033] S11: Use a crucible to melt ZSnSb11Cu6 babbitt alloy material, and remove floating objects suspended on the surface;

[0034] S12: Tilt the stainless steel angle ∠30×30×2 so that the angle between the stainless steel angle steel channel and the horizontal plane is 20°, and then use a small iron spoon to pour the molten babbitt alloy liquid into the stainless steel angle steel channel;

[0035] S13: Rotate the stainless steel angle steel to collect the welding wire falling off the stainless steel angle steel;

[0036] S2: Surface treatment of tin-based bearing alloy bushes: inspect the damaged ti...

Example Embodiment

[0039] Example 2

[0040] The welding repair method of the tin-based bearing alloy bearing bush of this embodiment includes the following steps:

[0041] S1: Preparation of welding wire: The bearing material to be repaired is a tin-based bearing alloy of model ZSnSb8Cu4, and ZSnSb8Cu4 babbitt alloy material is selected for smelting homemade welding wire. The method of homemade welding wire is:

[0042] S11: Use a crucible to melt ZSnSb8Cu4 babbitt alloy material, and remove floating objects suspended on the surface;

[0043] S12: Tilt the stainless steel angle ∠30×30×2 so that the angle between the stainless steel angle steel channel and the horizontal plane is 40°, and then use a small iron spoon to pour the molten babbitt alloy liquid into the stainless steel angle steel channel;

[0044] S13: Rotate the stainless steel angle steel to collect the welding wire falling off the stainless steel angle steel;

[0045] S2: Treat the surface of tin-based bearing alloy bushes: check the damaged...

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PUM

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Abstract

The invention relates to a welding repairing method for a tin-based bearing alloy bearing bush. The welding repairing method comprises the following steps that (1) a welding wire is prepared, specifically, a babbitt material matched with the tin-based bearing alloy bearing bush is selected to be smelted, and the welding wire is prepared; (2) the surface of the tin-based bearing alloy bearing bush is processed; and (3) TIG direct current welding is adopted, argon inert gas protecting is conducted, flat welding is adopted, wire filling welding repairing is conducted through a leftward welding method, the surface of the last layer of welding bead is higher than the original surface of the bearing bush, then protecting nozzle repairing welding is adopted, and the repaired bearing bush is obtained through machining. According to the welding repairing method for the tin-based bearing alloy bearing bush, operation is easy; the repairing result is ideal; the qualified rate is high; the reuse rate of the tin-based bearing alloy bearing bush is increased; and the recasting fund and time are reduced.

Description

technical field [0001] The invention relates to a welding repair method for a tin-based bearing alloy bearing bush. Background technique [0002] Tin-based bearing alloys have high anti-friction performance, good embedding, friction compliance and shaft resistance. The hard phase particles are evenly distributed in the soft phase matrix. The soft phase matrix makes the alloy have very good embedding, compliance and anti-seizure properties, and after running-in, the soft matrix is ​​concave, and the hard point is convex, so that a small gap is formed between the sliding surfaces to become an oil storage space and lubricating oil The channel is good for reducing wear, and the convex hard part acts as a support, which is good for bearing. [0003] Due to the above advantages, tin-based bearing alloys (babbitt alloys) are widely used in various types of bearing bushes on ships. Many rotating equipment in ships rely on the support of various bearings and lubricating oil to lubr...

Claims

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Application Information

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IPC IPC(8): B23K9/04B23K9/18
CPCB23K9/048B23K9/182
Inventor 黄建伟黄名章陈晓斌
Owner CSSC GUANGZHOU WENCHONG DOCKYARD CO LTD
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