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Method for producing elastic metal-plastic axle bush

A production method and elastic metal technology, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of low elastic modulus and unevenness, and achieve the effects of improving uniformity, improving uniformity, and improving compound accuracy.

Active Publication Date: 2010-05-12
DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV +1
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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 problem of low and uneven elastic modulus in the prior art, and provide a production method of elastic metal plastic bearing bushes with high elastic modulus, which is suitable for heavy-duty industrial and mining applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] a. make the tile surface with surface plastic layer embedded on the metal wire elastic pad according to the existing method;

[0013] b. Place the tile surface in an airtight container, and immerse the metal wire elastic pad in liquid solder such as tin under the condition of vacuum degree of 6-15Pa, so that the solder fills the pores in the wire elastic pad, cools and solidifies the solder ;

[0014] c. Braze the tile surface containing solder to the steel tile base.

Embodiment 2

[0016] Others are the same as in embodiment 1, except that step a is to uniformly spread the helical spring segments in the forming mold with a magnetic bottom plate in disorder.

Embodiment 5

[0018] Others are the same as in Embodiment 1 or 2, except that the tile surface blank is sintered under the conditions of a vacuum degree of 2-10 Pa and a temperature of 375-395° C., and the sintering time is 60-90 minutes, and the furnace is naturally cooled and released.

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PUM

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Abstract

The present invention discloses a production method of elastic metal plastic bush. It is characterized by that said production method includes the following steps: on the metal wire elastic pad makingbush surface in which a surface plastic layer is inlaid; placing the bush surface in a closed container, under the condition of that vacuum degree is 6-15 Pa soaking the metal wire elastic pad in liquid soldering material to make the soldering material be filled into pores in the metal wire elastic pad, then soldering the bush surface containing soldering material on the steel bush base.

Description

Technical field: [0001] The invention relates to a production method of an elastic metal-plastic bush for a heavy-duty thrust bearing used in a hydroelectric generator set. Background technique: [0002] At present, elastic metal-plastic bearing bushes all have a steel base, and a composite tile surface of metal wire elastic pad and plastic is brazed on the steel base. Because the traditional concept believes that certain pores must be left in the metal wire elastic pad to obtain a large elastic modulus, for this reason, the metal wire elastic pad is soaked under normal pressure in the production process of the existing elastic metal plastic bearing bush. In liquid solders such as tin, the void filling rate in the wire elastic pad is usually less than 80%. Yet, the production method of dipping solder to the metal wire elastic pad under normal pressure does not increase the elastic modulus of the metal wire elastic pad, on the contrary because the deep pores (greater than 20...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00B23K1/20
Inventor 魏柏林孙承玉刘平安
Owner DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV