CN-122007329-A - Maintenance-free storage battery terminal welding release agent, preparation method thereof and welding method

Abstract

The invention discloses a maintenance-free storage battery terminal welding release agent which comprises, by weight, 100 parts of distilled water, 4-7 parts of solution A, 2-3 parts of polyethylene wax and 6-9 parts of ethanol, wherein the solution A comprises, by weight, 100 parts of distilled water, 0.4-2 parts of glucose powder, 0.4-1 part of cooked rubber powder, 0.4-2 parts of bentonite, 1-2 parts of sodium silicate, 4-5 parts of cork powder and 1.5-3 parts of aluminum dihydrogen phosphate. The mold release agent can avoid shrinkage pit and lead explosion, and can effectively improve the welding quality of the terminal.

Inventors

• WU XUEQIAN
• WU HUIJIE
• ZHANG MENG
• WANG JINGYU
• ZHANG BOHAN
• LI YONGLE
• WANG WENLING
• WU MENGJIA

Assignees

• 风帆有限责任公司

Dates

Publication Date

20260512

Application Date

20260127

Claims (5)

1. 1. The maintenance-free storage battery terminal welding release agent is characterized by comprising, by weight, 100 parts of distilled water, 4-7 parts of solution A, 2-3 parts of polyethylene wax and 6-9 parts of ethanol, wherein the solution A comprises, by weight, 100 parts of distilled water, 0.4-2 parts of glucose powder, 0.4-1 part of cooked rubber powder, 0.4-2 parts of bentonite, 1-2 parts of sodium silicate, 4-5 parts of cork powder and 1.5-3 parts of aluminum dihydrogen phosphate.
2. 2. The manufacturing method of the maintenance-free storage battery terminal welding release agent is characterized by comprising, by weight, 100 parts of distilled water, 5 parts of a solution A, 2.5 parts of polyethylene wax and 7 parts of ethanol, wherein the solution A comprises, by weight, 100 parts of distilled water, 1 part of glucose powder, 0.5 part of cooked rubber powder, 1 part of bentonite, 1.5 parts of sodium silicate, 4.5 parts of cork powder and 2 parts of aluminum dihydrogen phosphate.
3. 3. The method for manufacturing the maintenance-free storage battery terminal welding release agent according to claim 1, which is characterized by comprising the following steps: Step S1, preparing a solution A, namely taking distilled water with the weight, adding glucose powder and cooked rubber powder with the weight, uniformly stirring, then adding bentonite with the weight, uniformly stirring, standing for 30-40 minutes, then sequentially adding sodium silicate with the weight and cork powder with the weight, uniformly stirring, heating to a boiling state, cooling, standing for 3 hours, adding aluminum dihydrogen phosphate with the weight, and uniformly mixing for later use; Step S2, taking 100 parts of distilled water, sequentially adding 4-7 parts of A solution, 2-3 parts of polyethylene wax and 6-9 parts of ethanol, mixing and stirring for 1-2 minutes, and pre-baking for 1-2 minutes by a welding gun before use.
4. 4. The method of manufacturing a maintenance-free battery terminal welding mold release agent according to claim 3, wherein the temperature of the welding gun is 1900 ℃.
5. 5. A maintenance-free storage battery terminal welding method is characterized in that the maintenance-free storage battery terminal welding release agent is used, and a terminal is formed by overlaying according to the following procedures, namely a welding terminal die is preheated by a welding gun for 1-2 minutes, the terminal die is immersed in the release agent for 1s-2s after preheating, the terminal die is made of iron, after the first terminal is welded, the die is immersed in the release agent for 1s-2s again, and a second terminal is welded after the die is taken out, so that the terminal is repeatedly used.

Description

Maintenance-free storage battery terminal welding release agent, preparation method thereof and welding method Technical Field The invention relates to the technical field of storage batteries, in particular to a maintenance-free storage battery terminal welding release agent, a preparation method thereof and a terminal welding method. Background The terminal of the maintenance-free storage battery used in the existing parking process is formed by performing secondary surfacing by utilizing a terminal die, and the surface of the terminal is required to be smooth and free of shrinkage pits after welding. At present, a release agent used in overlaying welding of terminals in our company is modified from a spray agent for casting grids, the release agent is obtained by diluting a component A solution with distilled water, the component A solution is mentioned in an invention patent CN103480795B and comprises 0.2% -4% of glucose, 2% -10% of cork powder, 0.2% -2% of cooked rubber powder, 0.2% -4% of bentonite, 0.5% -3% of sodium silicate, 1% -6% of aluminum dihydrogen phosphate and the balance of distilled water. The problem with this mold release agent in practical use is that, when the terminal mold is immersed in the mold release agent and is taken out and deposited, shrinkage pits are likely to occur on the surface of the welded terminal, and the phenomenon of lead explosion occurs occasionally. Further optimization of the release agent is required in order to improve the smoothness of the terminal surface and reduce the phenomenon of lead explosion. Disclosure of Invention The invention aims to provide a maintenance-free storage battery terminal welding release agent, which can avoid shrinkage pit and lead explosion and can effectively improve terminal welding quality. In order to achieve the above purpose, the present invention adopts the following technical scheme: the maintenance-free storage battery terminal welding release agent comprises, by weight, 100 parts of distilled water, 4-7 parts of solution A, 2-3 parts of polyethylene wax and 6-9 parts of ethanol, wherein the solution A comprises, by weight, 100 parts of distilled water, 0.4-2 parts of glucose powder, 0.4-1 part of cooked rubber powder, 0.4-2 parts of bentonite, 1-2 parts of sodium silicate, 4-5 parts of cork powder and 1.5-3 parts of aluminum dihydrogen phosphate. The maintenance-free storage battery terminal welding release agent comprises, by weight, 100 parts of distilled water, 5 parts of a solution A, 2.5 parts of polyethylene wax and 7 parts of ethanol, wherein the solution A comprises, by weight, 100 parts of distilled water, 1 part of glucose powder, 0.5 part of cooked rubber powder, 1 part of bentonite, 1.5 parts of sodium silicate, 4.5 parts of cork powder and 2 parts of aluminum dihydrogen phosphate. The invention also aims to provide a preparation method of the maintenance-free storage battery terminal welding release agent, which comprises the following steps: And step S1, preparing a solution A, namely taking distilled water with the weight, adding glucose powder and cooked rubber powder with the weight, uniformly stirring, then adding bentonite with the weight, uniformly stirring, standing for 30-40 minutes, then sequentially adding sodium silicate with the weight and cork powder with the weight, uniformly stirring, heating to a boiling state, cooling, standing for 3 hours, adding aluminum dihydrogen phosphate with the weight, and uniformly mixing for later use. Step S2, taking 100 parts of distilled water, sequentially adding 4-7 parts of A solution, 2-3 parts of polyethylene wax and 6-9 parts of ethanol, mixing and stirring for 1-2 minutes, and pre-baking for 1-2 minutes by a welding gun before use. Optionally, the temperature of the welding gun is 1900 ℃. The invention provides a maintenance-free storage battery terminal welding method, which comprises the steps of preheating a welding terminal die by a welding gun for 1-2 minutes, immersing the welding terminal die in the release agent for 1s-2s after preheating, immersing the die in the release agent for 1s-2s again after welding a first terminal, taking out the die, continuously welding a second terminal, and repeatedly using the welding terminal. According to the technical scheme, the adhesive force of the terminal welding release agent can be enhanced by dissolving the cooked rubber powder in the solution A in water, the viscosity can be further increased along with the temperature after adding a proper amount of glucose, the adhesive is better adhered to a terminal welding die and is not easy to fall off, the adhesive force of the release agent is further increased after adding a proper amount of bentonite and sodium silicate, the peeling resistance of a coating is improved after adding a proper amount of aluminum dihydrogen phosphate, and the coating is resistant to high-temperature liquid scouring, which are already described in the patent CN 103480795B. It was fo