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A technology for reducing slag from casting and welding

A technology of casting and welding, which is applied in the field of reducing slag from casting and welding, can solve the problems of high slag rate of lead-tin alloy, and achieve the effect of improving utilization rate and avoiding reduction

Active Publication Date: 2016-02-03
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process solves the problem of high slag discharge rate of lead-tin alloy in the process of casting and welding, and its operation is simple and the effect is remarkable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A technique for reducing casting and welding slag, comprising the following steps:

[0026] (1) First control the temperature of the lead pot used to melt the lead-tin alloy to 490°C;

[0027] (2) Cut the lead-tin alloy into small pieces with a weight of less than 500g, and add the lead-tin alloy to the lead pot in 4 times; at the same time, add lead in this place and during the process of adding the lead pot in the following steps The weight percentage of the tin alloy is 0.03% aluminum. When the lead-tin alloy is added each time, after the alloy is melted, the alloy is stirred evenly, and the scum on the surface of the completely melted alloy melt is taken out, and it is put into the bottom of the lead pot. Melt in the auxiliary melting pot; the time for adding the lead pot is controlled at 1-4min.

[0028] (3) Use a scraper to remove the surface layer of the lead-tin alloy melt, and the frequency is to remove once every 5 samples cast and welded;

[0029] (4) Durin...

Embodiment 2

[0032] A technique for reducing casting and welding slag, comprising the following steps:

[0033] (1) First control the temperature of the lead pot used to melt the lead-tin alloy to 510°C;

[0034] (2) Cut the lead-tin alloy into small pieces with a weight of less than 500g, and add the lead-tin alloy to the lead pot in 5 times; at the same time, add lead in this place and during the process of adding the lead pot in the following steps The weight percent of the tin alloy is 0.04% aluminum and 0.02% germanium. When the lead-tin alloy is added each time, after the alloy is melted, the alloy is stirred evenly, and the scum on the surface of the completely melted alloy melt is taken out, and put into the Melt in the auxiliary melting pot connected to the bottom of the lead pot; the time for adding the lead pot is controlled at 1-4min.

[0035] (3) Use a scraper to remove the surface layer of the lead-tin alloy melt, and the frequency is to remove once every 5 samples cast and ...

Embodiment 3

[0039] A technique for reducing casting and welding slag, comprising the following steps:

[0040] (1) First control the temperature of the lead pot used to melt the lead-tin alloy to 500°C;

[0041] (2) Cut the lead-tin alloy into small pieces with a weight of less than 500g, and add the lead-tin alloy to the lead pot in 6 times; at the same time, add lead in this place and during the process of adding the lead pot in the following steps The weight percentage of the tin alloy is 0.02% aluminum, 0.04% germanium and 0.02% magnesium. When the lead-tin alloy is added each time, after the alloy is melted, the alloy is stirred evenly, and the scum on the surface of the completely melted alloy melt is removed. Take it out, put it into the auxiliary melting pot connected with the bottom of the lead pot for melting; the time of adding the lead pot is controlled to 1-4min.

[0042] (3) Use a scraper to remove the surface layer of the lead-tin alloy melt, and the frequency is to remove...

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PUM

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Abstract

The invention relates to the field of lead battery manufacture, in particular to a technology for reducing cast-weld slag. According to the technology, through control of the temperature of a lead pan for melting alloys, control of feeding in the use process of the lead pan and improvement of the components of the alloys, the output of lead slag is reduced, the utilization rate of lead-tin alloys is increased, the firmness of battery plate welding is guaranteed, and a lead-acid battery has excellent corrosion resistance.

Description

technical field [0001] The invention relates to the field of lead battery manufacturing, in particular to a process for reducing casting and welding slag. Background technique [0002] At present, the application fields of lead-acid batteries are very extensive, and the mechanized production of lead-acid batteries is also the general trend. The casting and welding process is convenient to operate and reduces the labor intensity of workers, so it has become the first choice of lead-acid battery manufacturers. In the process of casting and welding, lead-tin alloy is the only alloy used in casting welding, but because tin material is a rare metal, the current utilization efficiency of lead-tin alloy is only about 80%, and nearly 20% of lead-tin alloy is made of lead slag. The form of waste has become a waste product, which not only causes a waste of resources, but also increases the unnecessary production cost of the enterprise. How to reduce the slag rate in the process of ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/04B22D43/00
Inventor 杨绍坡赵文超张森
Owner CHAOWEI POWER CO LTD
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