Company News

The reason for the large amount of welding residues in wave solder bars

Views : 115
Update time : 2022-09-01 15:57:27
The management and adjustment of the wave soldering furnace during the welding process of the wave soldering bar is very important. If the operation is improper, there will be a lot of solder residue and the board will be dirty. :
a. The solid content of the flux is high, and there are too many non-volatile substances; during the use of the flux, no diluent is added for a long time; the flux is coated too much.
b. No preheating before welding or the preheating temperature is too low (dip welding, the time is too short).
c. The board running speed is too fast (the flux is not fully volatilized).
d. The temperature of the tin furnace is not enough, there are too many impurities in the furnace or the degree of the tin bar is low.
e. It is caused by adding antioxidant or antioxidant oil.
f. There are too many sticks or open components on the PCB, and there is no preheating.
h. The component foot and the board hole are disproportionate (the hole is too large) so that the flux rises.
i. The PCB itself has pre-coated rosin.
j. In the tinning process, the wettability of the flux is too strong.
k. PCB process problems, too few vias, resulting in poor flux volatilization.
l. The angle of the PCB entering the tin liquid is wrong when hand dipping.
In summary, attention must be paid to the welding operation of the wave solder bar to prevent the occurrence of poor solder, which will affect the production efficiency and product quality.
Related News
Read More >>
What are the main problems that exist during the soldering process of lead-free tin bars? What are the main problems that exist during the soldering process of lead-free tin bars?
Aug .01.2023
Leadless tin strip is an energy-saving raw material that does not contain lead chemicals, also known as low-carbon and environmentally friendly welding wire. It has been successfully tested according to SGS and has no air pollution. There are several main problems that exist in the production process. Below, the solder paste manufacturer will explain:
What are the differences between tin wire and silver wire? What are the differences between tin wire and silver wire?
Jul .21.2023
Solder wire, Chinese name: Solder wire, Solder wire, Tin wire, Tin wire, English name: Solder wire, Solder wire is composed of two parts: tin alloy and flux, the alloy composition is divided into tin lead, tin copper, and other additives added evenly to the middle part of the tin alloy.
The scope of use of solder wire and solder bar The scope of use of solder wire and solder bar
Feb .09.2023
There are some things you don't know about the use of solder wire, solder bar, and the scope of use
Proper use of solder wire Proper use of solder wire
Feb .09.2023
Proper use of solder wire and commonly used auxiliary materials