阅读说明：本技术 一种有机助焊剂及其制备方法 (Organic soldering flux and preparation method thereof ) 是由 李世银 李剑峰 于 2018-06-03 设计创作，主要内容包括：本发明公开了一种有机助焊剂及其制备方法,甲基吡络烷酮成份；69%、乙二酸成份；20%、戊二酸成份；10%、快速渗透剂成份；5%和快速扩散剂成份；5%。本发明通过采用该制备方法的有机助焊剂焊接电池的最大特点是加入电解液后电压不会下降,而且还具有防止焊接的表面再氧化的功能、湿润能力强、固态含量低、焊接过程中不溅铅、焊接后无重结晶现象和焊接牢固的有益效果,并且本助焊剂不属于危险品的特性即方便了运输还具有使用安全的效果,可以给环境带来环保。(The invention discloses an organic flux and a preparation method thereof, wherein the organic flux comprises a methyl pyrrolidone component; 69 percent of oxalic acid; 20% of glutaric acid component; 10% of rapid penetrant component; 5% and a fast dispersing agent component; 5 percent. The organic soldering flux for welding the battery by adopting the preparation method has the biggest characteristics that the voltage cannot be reduced after the electrolyte is added, the organic soldering flux also has the beneficial effects of preventing the welding surface from being reoxidized, having strong wetting capacity, low solid content, no lead splashing in the welding process, no recrystallization phenomenon after welding and firm welding, and the soldering flux does not belong to the characteristic of dangerous goods, namely, the organic soldering flux is convenient to transport, has the effect of safe use and can bring environmental protection to the environment.)

1. An organic soldering flux and a preparation method thereof are characterized in that the preparation method comprises the following steps: a methyl pyrrolidone component; 69 percent of oxalic acid; 20% of glutaric acid component; 10% of rapid penetrant component; 5% and a fast dispersing agent component; 5 percent.

2. The organic flux and the preparation method thereof according to claim 1, wherein: firstly, preparing materials according to the percentage components at normal temperature.

3. The organic flux and the preparation method thereof according to claim 1, wherein: and step two, adding the methyl pyrrolidone component and the oxalic acid component into a stirring kettle, and stirring while controlling the temperature in the stirring kettle between 45 and 50 ℃.

4. the organic flux and the preparation method thereof according to claim 1, wherein: and step three, adding glutaric acid component in the stirring process of the stirring kettle, and uniformly stirring for 15min at 80-120 rpm.

5. The organic flux and the preparation method thereof according to claim 1, wherein: and step four, adding the rapid penetrant component and the rapid diffusant component, continuing stirring for 5-10 min, and finally filling.

Technical Field

The invention relates to the technical field of storage batteries, in particular to an organic soldering flux and a preparation method thereof.

Background

1. The maintenance-free lead-acid storage battery technology is developed more generally in China in the last decade, automatic production equipment and technology are popularized along with foreign introduction of the automatic equipment and domestic research and development production, the past production mode completely depending on manual and semi-mechanization is completely replaced, particularly the introduction of a world advanced net-pulling production line, the transition and leap progress from plate formation to battery formation in the past is changed, and the maintenance-free lead-acid storage battery technology has the advantages of improving yield, ensuring quality, reducing cost, protecting environment and guaranteeing the health of workers, and a scaling powder is urgently needed to be adapted to the automation of net-pulling battery assembly to ensure the welding quality of a battery plate group.

2. Most of the existing domestic soldering fluxes are inorganic aqueous agent soldering fluxes, which mainly help soldering by corroding lead oxides on lugs, solid residues are left on the lugs after soldering of the soldering fluxes, so that voltage is reduced after electrolyte is added, a battery short circuit is easily caused by base lead during aqueous agent soldering, countless lead points are formed around the soldered lugs after soldering is observed by using a magnifying glass, and the whole lug is easily embrittled due to recrystallization formed during pb-sb-cd alloy soldering, so that the service life of the whole battery pack is influenced.

3. In addition, inorganic flux, such as hydrochloric acid, hydrofluoric acid, stannic chloride, sodium fluoride and zinc chloride, phosphoric acid series and salts thereof, has strong chemical action and high corrosiveness, can remove the oxide film layer of metal, belongs to acid flux, and can cause halide to remain on the welded piece after use to form more serious corrosion, so that the flux cannot be used in the assembly of the battery.

4. Although flux represents only a minor factor in the cost of producing the battery, it can play a crucial role in the overall battery quality. Therefore, an organic soldering flux and a preparation method thereof are developed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects, and to provide an organic soldering flux and a preparation method thereof, which can solve the problems in the background technology

In order to achieve the purpose, the invention adopts the following technical scheme:

The invention relates to an organic soldering flux and a preparation method thereof, wherein the organic soldering flux contains a methyl pyrrolidone component; 69 percent of oxalic acid; 20% of glutaric acid component; 10% of rapid penetrant component; 5% and a fast dispersing agent component; 5 percent.

Preferably, step one, firstly, preparing materials according to the percentage components at normal temperature.

preferably, in the second step, the composition containing the methyl pyrrolidone and the oxalic acid composition is added into a stirring kettle, and the temperature in the stirring kettle is controlled between 45 ℃ and 50 ℃ for stirring.

Preferably, glutaric acid is added in the stirring process of the stirring kettle in the third step, and the mixture is stirred at a constant speed of 80-120 rpm for 15 min.

Preferably, adding the rapid penetrating agent component and the rapid dispersing agent component, continuously stirring for 5-10 min, and finally filling.

The invention has the beneficial effects that: the organic soldering flux for welding the battery by adopting the preparation method has the biggest characteristic that the voltage cannot be reduced after the electrolyte is added, and the organic soldering flux has the following beneficial effects;

1. The organic soldering flux is directly used for soldering by lead oxide rather than by corroding oxide layer, so that it has the advantages of no corrosion and no halogen, and its surface insulation resistance can be greater than 1.0X 1011 omega.

2. The soldering flux has the function of preventing reoxidation, removes oxide on the surface of the lead and forms a protective film at the same time, and the protective film can prevent the surface of the soldering from reoxidizing until the soldering is finished.

3. The soldering flux has the advantages that the soldering flux has a strong wetting capability, the surface of the lug has strong wetting capability, the surface tension of the lead can be reduced, the diffusivity of the lead can be increased, and the 'climbing' effect is more obvious, (the surface tension of the soldering flux can prevent the soldering flux from overflowing to the surface of the lug to influence the normal wetting, and the surface tension of the lead of the lug can be reduced when the soldering flux covers the surface of the lug, so that the wetting performance is obviously improved).

4. The soldering flux has the effect of low solid content, the solid content is below 2%, and no residue is left on the lug after soldering, so that the voltage is ensured not to be reduced after electrolyte is added, and even a little flux residue does not have redox reaction with the electrolyte.

5. The soldering flux contains no water, and can ensure that lead is not splashed in the welding process, thereby well avoiding the occurrence of the condition of short circuit of a battery.

6. The soldering flux is developed by specially adapting to pb-ca alloy and pb-se alloy in the mesh pulling battery, and can ensure no recrystallization phenomenon after welding and firm welding effect.

7. The soldering flux has the function of a metal cleaning agent, can ensure that the reflow is bright as new after welding, has no pollution and darkness, and can protect the surface of the cleaned lead.

8. The soldering flux is not a dangerous article, is convenient to transport, has an effect of safe use, and can bring environmental protection to the environment.

Detailed Description

The following description is presented in conjunction with the preferred embodiments of the present invention, and it is to be understood that the preferred embodiments described herein are presented only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

An organic scaling powder and its preparation method, methyl pyrrolidone ingredient; 69 percent of oxalic acid; 20% of glutaric acid component; 10% of rapid penetrant component; 5% and a fast dispersing agent component; 5 percent.

The organic soldering flux has the greatest characteristics that the voltage cannot be reduced after the electrolyte is added into the organic soldering flux for welding the battery, the organic soldering flux also has the advantages of preventing the reoxidation of the welded surface, strong wetting capacity, low solid content, no lead splashing in the welding process, no recrystallization phenomenon after welding and firm welding, and the organic soldering flux is not a dangerous article, namely, the organic soldering flux is convenient to transport, has the effect of safe use and can bring environmental protection to the environment.

Firstly, preparing materials according to the percentage components at normal temperature.

And step two, adding the methyl pyrrolidone component and the oxalic acid component into a stirring kettle, and stirring at the temperature of 45-50 ℃ in the stirring kettle.

Wherein, glutaric acid is added in the stirring process of the stirring kettle in the third step, and the mixture is stirred at a constant speed of 80-120 rpm for 15min

And step four, adding the rapid penetrating agent component and the rapid dispersing agent component, continuously stirring for 5-10 min, and finally filling.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.