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Flux for busbars of lead-acid batteries

A lead-acid battery and busbar technology, used in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of poor melting of plate lugs and lead liquid, and many bubbles, and reduce the time of casting and welding batteries. The effect of lead slag reduction

Active Publication Date: 2017-01-25
HENAN CHAOWEI POWER SUPPLY
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  • Claims
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Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a flux for lead-acid storage battery busbars, which solves the problem of poor melting of plate lugs and lead liquid, many bubbles after the lead liquid is cooled, and the problem that the lead liquid does not stick to the plate lugs

Method used

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  • Flux for busbars of lead-acid batteries

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below.

[0022] In view of the above effects, it can be properly adjusted within the formula range according to the welding quality: the welding between the lug and the lead liquid is not thorough enough, and the metaphosphoric acid can be adjusted to the upper limit (plan 1). If the surface of the lug is oxidized, it is beneficial to use more metaphosphoric acid. Cast welding; if there are bubbles in the welding part, the ethanol can be adjusted to the upper limit (Scheme 2). If the welding is easy to explode lead or produce pores, the solution with more ethanol is good for casting welding; if the lead liquid does not stick to the plate lug, the phosphate ester can be adjusted The upper limit (Scheme 3), if the lugs are not sticky to lead liquid, the solution can be improved by using more phosphate esters; if there is flux absorbed on the separator paper or the plate, carmine can be adjusted to th...

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Abstract

The invention relates to a soldering flux and in particular relates to a soldering flux of a busbar of a lead-acid storage battery. The soldering flux comprises the following components in percentage by weight: 8-15% of metaphosphoric acid, 3-8% of phosphate, 10-15% of ethyl alcohol, 1-5% of carmine and the rest of water, wherein the total weight percentage is 100%. The invention aims at providing a soldering flux of a busbar of a lead-acid storage battery and solving the problems that a plate lug is undesirably melted together with a lead solution, a plurality bubbles are generated after the lead solution is cooled and the lead solution is not adhered to the plate lug.

Description

technical field [0001] The invention relates to soldering flux, in particular to a soldering flux for busbars of lead-acid storage batteries. Background technique [0002] In recent years, the manual welding of lead-acid battery plates has been basically eliminated, and the relevant national regulations must use machine automatic casting welding for battery plate and busbar welding. The cast welding method is generally: the positive plate, the separator (glass fiber separator paper), and the negative plate have been stacked, first soak the plate lugs in the flux, and then move the plate group Lead liquid casting welding with a mold, the lug is inserted into the lead liquid at about 500 ℃, so that the lead liquid plate melts the surface of the lug, and then the lead liquid is cooled and solidified, so that multiple pieces of lugs are connected together. The purpose of dipping the lugs of the plates in flux is to facilitate welding, so that the surface of the lugs and the mol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/362
CPCB23K35/362
Inventor 李松林柴成雷
Owner HENAN CHAOWEI POWER SUPPLY
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