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In the circuit board welding factory, various quality problems may occur during the manual circuit board welding process, so how to prevent the occurrence of poor printed circuit board welding? The following is an introduction to the precautions of the circuit board welding factory:1) Choose suitable solder, and use low melting point solder wire for soldering electronic components.2) Flux, use 25% rosin dissolved in 75% alcohol (weight ratio) as a flux.3) The electric soldering iron should be tinned before use. The specific method i... more