The phenomenon of false welding is relatively easy to occur during the production process, and many merchants are very distressed about it. Today, JJY Solder Paste Manufacturer will give you a detailed introductionLead-free and no-rinse solder pasteWhy does the phenomenon of false welding occur and what countermeasures should be taken to deal with it after it occurs

Cause: During the lead-free and no-rinse solder paste printing processPCBThe sheet was not cleaned thoroughly, resulting in the relevant tin powder remaining on it. Solution: This situation is relatively easy to handle. We will use professional brushes to deal with itPCBJust clean the board thoroughly.

Cause: The solder paste was opened before use, resulting in poor sealing and solvent evaporation. Handling method: Try to ensure the service life of the solder paste as much as possible. Do not open the package at will. Use it immediately after opening.

Cause: Power outage, resulting inPCBThe solder paste on the board has stayed in the boiler for too long. Solution: Regularly check the reflow solderingUPS.

Cause of occurrence: The parts involved in the production process are contaminated, with dust and other fine substances adhering to them. Handling method: Personnel shall followSOPHomework.

Cause of occurrence: Excessive synthetic solvent was added during production, and alcohol and solder paste were improperly mixed. Solution: Before production, the alcohol must be allowed to evaporate before printing, and the steel mesh should be cleaned properly.

Cause of occurrence: The solder paste used has expired, and the amount of flux in it has decreased, resulting in a decline in the quality of lead-free no-wash solder paste. Solution: Before adding solder paste, carefully check whether the lead-free and no-rinse solder paste has expired.

Cause of occurrence: The temperature was set improperly during the reflux setting, resulting in an error. Solution: Reset the reflow soldering temperature parameters.

Shenzhen JJY Industrial Technology Co., Ltd. mainly engages in the production and operation of:SMTSolder paste manufacturers of solder paste, syringe solder paste, lead-free solder wire, wave soldering bar, automatic soldering wire, etc.