When soldering, if the solder tip is pulled out, what should be done generally?

I think that in general production workshops, there are often some problems in welding, and the products used also have some issues. Today, I will elaborate on a problem that may be encountered during the wave soldering process (the phenomenon of tin balls and tin tips). Why does it occur? In many cases, it is becausePCBThere is moisture on the through holes of the board. During soldering, as the moisture is heated and turns into steam, the steam splashes the flux out of the solder bath, resulting in irregular solder balls. The solder paste manufacturer explains what to do when this situation usually occurs.

When soldering, there are generally the following points to pull out the solder tip:

1The temperature of the tin was low and did not reach the optimal soldering temperature

2The purity of tin is not good enough and there are many impurities

3The flux concentration is insufficient

4The object left the tin too quickly5.Insufficient preheating time or low preheating temperature

When using solder wire for welding, the treatment method for the solder joint presenting a sharp and continuous welding:

1First of all, it is necessary to understand that the fullness of the solder joint is related to the tin content, purity and flux activity of the solder wire, while the difficulty in soldering has no connection with the tin content; 

2It is related to the data of the welding position. Whether the material is difficult to solder and how the degree of oxidation on the surface of the material affects the dispersion force and the sharpening condition usually requires the selection of different types of solder wires with different flux contents for different materials. Only in this way can the dispersion force of the solder wire during soldering be effectively enhanced, and problems such as sharp edges be reduced. 

3It is related to the wattage of the soldering iron.The required temperatures for soldering with solder wires of different tin contents are different. When using a soldering iron with a low wattage and solder wire with a low tin content, due to the insufficient temperature, the solder is in a semi-dissolved state, which easily leads to a sharp tip.So it is necessary to select an appropriate soldering iron for soldering. 

4It is related to the active agent of the flux.Active agents with strong activity have good dispersion power, strong dehydration capacity and relatively stable electrical functions.Therefore, choosing solder wire with better flux activity can handle pulp-point soldering,However, it simply brings about problems such as excessive smoke.

Shenzhen JJY has carried out mutually beneficial cooperation with electronic raw material producers and also manufactures solder wire for other enterprises.Solder rodProduction of solder paste and flux paste; With a rich variety of successful cases in the research and development of chemical raw materials, our overall strength has created a sales market that is of high quality and honest and trustworthy.