Why is it not necessary to clean the solder paste after soldering?

Generally, we all know that there is a lot of residue after welding and it needs to be cleaned. The ones that do not require cleaning are those with less residue after welding and do not need to be cleaned. Not requiring cleaning does not mean there is no residue. Currently, there are two types of solder pastes available on the market: washable solder paste and no-wash solder paste. Many people are asking: Does washable solder paste only need to be washed with pure water? After cleaning, are there any other subsequent treatments? Is it applicable to the soldering operation of circuit boards with high-frequency characteristics? No-rinse solder pasteAfter reflow soldering, is there no residue at all? Now, let's have JJY solder Paste Manufacturer explain it

Due to technical reasons, the solder paste produced in the early days was generally excessive, and the electrical performance was not ideal, which seriously affected the product quality. At that time, many countries prohibited its useCFCCleaning agent To meet the market demand, water-soluble solder paste has emerged.

After washing the solder paste with water, soak the circuit board in water or alcohol5After minutes, clean the residue with a brush and then rinse again. After cleaning, use60-80Dry the circuit board with hot air or let it cool naturally.

Generally speaking, water washing should be completed within four hours for the solder pads; otherwise, there may be white powder-like residues that cannot be cleaned thoroughly. Therefore, most manufacturers must clean the boards within four hours.

Shenzhen JJY Industrial Technology Co., Ltd. mainly operates:LEDType solder paste, lead-containing solder paste, lead-containing silver solder paste, stainless steel plate type solder pasteSMTSolder paste and wire manufacturers of type solder paste, lead-free flux paste, no-clean solder wire, lead-free solder wire, leaded solder wire, lead-free and leaded solder rods, wave solder rods, automatic solder wires, etc.