There are many reasons involved in this difficult problem. For example,Low-temperature tin wireHas the customer's welding method been cleaned?PCBWhat is the spacing between the weld points on the board? The insulation resistance size of the flux itself after soldering and its natural environment are all related.Shenzhen JJYThe current analysis can be divided into the following points?

    Master the entire process of electric welding for customers, including after weldingPCBWhether the board has been cleaned or not, if there is leakage after cleaning, the main reason is thatPCBProblems with the board itself, whether it has been cleaned thoroughly, and whether the cleaning agent will cause corrosion or leave harmful substances, resulting in leakage of electricity, etc.

    PCBThe spacing of the solder joints on the board and the insertion frequency between the solder joints are also one of the reasons that need to be taken into account for leakage. If the spacing of the solder joints is not close, or2The previous plugging frequency of each solder joint is high. In such cases, it is recommended that customers use rosin tin wire and clean it after soldering, or use bothNo-wash tin wire.

    It is related to the post-weld insulation resistance of the flux itself. Different types of fluxes have different insulation resistances, and the size that affects the insulation resistance of the flux mainly depends on the flux. In flux, the rosin selected is also related to the problem of leakage. The higher the purity and grade of the rosin, the greater the insulation resistance.

    The problem of leakage is also related to the natural environment. whenPCBAfter the board is welded, if it is kept in a damp and cold natural environment for a long time, it is easy for the residual flux to absorb moisture and cause leakage. For example, the probability of leakage caused by rainy days is relatively high.

    The size of the flux composition is also related to the problem of leakage. Under the condition that the actual welding effect can be considered, if the customer's process is not cleaningPCBIn terms of the board, the lower the composition of the flux, the more stable the electrical equipment characteristics will be. In other words, the lower the risk of leakage will be.

    Taking all the above situations into consideration, a better way to avoid electric leakage is toPCBThe board is thoroughly cleaned and there will be no leakage of electricity. The low-temperature tin wire of Shenzhen JJY brand has gone through12Annual research and development of solder paste and solder wireSolder wireManufacturers of solder paste and wire for lead-free solder paste, leaded solder paste, solder rods, leaded solder paste, etc.