How appropriate is the temperature setting in the welding head for mobile phone maintenance?

The electric soldering iron for mobile phone maintenance is an anti-static soldering iron with adjustable constant temperature. Generally, welding small parts, just adjust the temperature to the upper middle. If the surface is relatively large or the contact surface is relatively large, the temperature can be appropriately increased. After adjustment, wait for a while, and then the soldering iron can be used for welding. Generally, the temperature of the welding table for repairing mobile phones should be adjusted to 350℃-450℃, preferably not too high or over 450℃.