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Soldering flux of busbar of lead-acid storage battery

A technology of lead-acid batteries and busbars, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/materials, etc. It can solve the problems of many bubbles, poor melting of plate lugs and lead liquid, etc., and achieve the reduction of lead slag and cast welding The effect of battery time reduction

Active Publication Date: 2014-04-09
HENAN CHAOWEI POWER SUPPLY
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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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  • Soldering flux of busbar of lead-acid storage battery

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Embodiment Construction

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

[0022] In view of the above effects, it can be adjusted appropriately within the range of the formula according to the welding quality: the plate lug is not completely welded with the lead liquid, and the metaphosphoric acid can be adjusted to the upper limit (option 1). If the surface of the plate lug is oxidized, the solution of using more metaphosphoric acid is beneficial Cast welding; if there are bubbles in the welding part, the alcohol can be adjusted to the upper limit (option 2). If the welding is easy to fry lead or produce pores, use more ethanol to facilitate casting and welding; the phosphate ester can be adjusted without lead liquid sticking to the plate ears Upper limit (Scheme 3). If the plate lugs do not stick to lead liquid, the solution can be improved by using more phosphoric acid ester; if the separator paper or the electrode plate absorbs flux, the carmine can be adju...

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PUM

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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 a flux, in particular to a flux for the busbar of a lead-acid battery. Background technique [0002] In recent years, manual welding of lead-acid battery plates has been basically eliminated, and the relevant state stipulates that the welding of battery plates and busbars must use automatic machine casting and welding. The casting welding method is generally: the positive plate, the separator (glass fiber separator paper), and the negative plate have been stacked. First, the plate ears are soaked in the flux, and then the plate group is moved to For liquid lead casting and welding with a mold, the plate lugs are inserted into the lead liquid at about 500°C to melt the surface of the plate lugs by the liquid lead plate, and then the liquid lead is cooled and solidified, so that multiple plate lugs are connected together. The purpose of the soldering flux for the lugs of the plates is to facilitate the soldering, so that the surface ...

Claims

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Application Information

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IPC IPC(8): B23K35/362
CPCB23K35/362
Inventor 李松林柴成雷
Owner HENAN CHAOWEI POWER SUPPLY
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