Pouring technology for bearing alloy

A technology of bearing alloy and process, which is applied in the field of pouring process of bearing alloy, can solve the problems of complex pouring process, low product market competitiveness, low production efficiency, etc., achieve simple pouring process, avoid repetitive procedures, and improve The effect of work efficiency

Inactive Publication Date: 2016-06-08
CHONGQING XUXINYUE NC MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the pouring process of bearing alloys is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the final produced bearings. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the product quality The market is not competitive
For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences

Method used

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Embodiment Construction

[0012] The technical solution disclosed by the invention is a bearing alloy pouring process, which is characterized in that it includes the following steps: 1) fully stirring the alloy liquid before pouring, standing for 2-4 minutes, and cleaning up the scum. The pouring temperature of the tin-antimony alloy is 400-440°C;

[0013] 2) Before casting, preheat all the casting tools to 150-200°C, take out the mold preheated to 270-300°C, and assemble it with the steel shell that has been tinned. In order to prevent the Babbitt alloy from leaking during casting, press 65% clay, 17% salt, and 18% water are formulated for sealing;

[0014] 3) When pouring, the temperature determines the condensation direction of the liquid alloy. It is necessary to ensure that the temperature of the inner surface of the mold is always higher than the temperature of the bearing pad surface of the steel shell, which will increase the condensation force of the liquid alloy squeezed to the bearing pad su...

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Abstract

The invention discloses a pouring technology for bearing alloy. The pouring technology comprises the steps of 1, fully stirring alloy liquid before pouring, leaving the alloy liquid to stand for 2-4 minutes and clearing dross, wherein the pouring temperature of tin-antimony alloy ranges from 400 DEG C to 440 DEG C; 2, preheating all pouring tools to 150-200 DEG C before pouring and taking out dies preheated to 270-300 DEG C; 3, in the pouring process, guaranteeing that the temperature of the inner surfaces of the dies is always higher than the temperature of a steel shell bearing bush surface because the temperature decides the condensation direction of the liquid alloy; 4, for completing the pouring process, placing a die base on a platform before pouring, immediately pouring molten babbitt metal into an iron ladle preheated to 270-300 DEG C for carrying out casting after preparation work is completed, controlling the speed to be low at the initial stage of pouring, gradually increasing the speed and cooling the alloy through quenching and slow cooling after pouring is completed.

Description

technical field [0001] The invention relates to a pouring process of a bearing alloy. Background technique [0002] At present, the pouring process of bearing alloys is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the final produced bearings. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the product quality The market is not very competitive. For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a casting process for bearing alloys, which is simple, eliminates many repetitive processes, improves work efficiency, and produces bearings with good...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D35/04B22D30/00
Inventor 银琦
Owner CHONGQING XUXINYUE NC MACHINERY CO LTD
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