In the welding process, it removes oxides on the surface of soldering materials such as LEDs, mobile phone motherboards, computer motherboards, electronic components, and boards, reduces the surface tension of the material to be soldered, and acts as a soldering aid. At the same time, solder paste It is also a synthetic solder paste.

Ingredients for solder paste

Rosin Filming Agent + Active Agent + Thixotropic Agent +Solvents

1. The rosin film former has a higher softening point.

Traditional soldering The rosin film-forming agent contained in the paste is ordinary rosin, the softening point is about 75 ° C, and its acid value is about 100. The rosin is dark in color, and the residue after high-temperature welding is prone to yellowing, because the rosin has a low softening point. The rosin residue after soldering cooling has a moist feeling and is easy to stick.

2, using non-ionic polymer active agent

Traditional solder paste is selected ion Active agent, commonly used salt surfactant, this kind of active agent has strong weldability, but it is easy to absorb moisture, and it will react with the product at room temperature, it will easily corrode the welded product, and the activity in the residue after welding The agent will absorb moisture, which will lead to leakage, corrosion and greening.

3, Japanese professional thixotropic agents

Traditional solder pastes are generally selected from paraffin As a thixotropic agent, this thixotropic agent will make the solder paste rough and hard, and it will be unevenly applied to the customer during operation, resulting in uneven residue and inconsistent appearance.

4. Imported solvent:

The solvent in the traditional solder paste is low-boiling ether, so it is volatile. The ethers are generally toxic, so the traditional solder paste will be smoked and smelled when soldered.

5, professional fully automated equipment:

Traditional solder paste is only heated (One pot boiled), one bottle and one bottle are packed, it will become hard after cooling, and it is very inconvenient to use.