How to use and maintain the tip of the soldering iron:
(1) The main reasons why the soldering iron tip does not stick to tin are the following points. Please avoid them as much as possible:
(1) The temperature is too high, and it is easy to oxidize the tin-dipped surface when it exceeds 400°C.
(2) Not all tinned surfaces are tinned during use. www.dgjs123.com
(3) Too little flux during welding; or using active flux will cause the surface to oxidize quickly; water-soluble flux is corrosive at high temperatures and will damage the soldering iron tip.
(4) The sponge used to wipe the soldering iron tip contains too much sulfur, is too dry or is too dirty.
(5) Contact with organic matter such as plastic; lubricating oil or other compounds.
(6) Tin is impure or the tin content is too low.
(2) Precautions and maintenance methods when using the soldering iron tip:
(1) Before powering on the soldering iron head every day, remove the remaining oxides, dirt or flux on the soldering iron head; and remove impurities from the heating body to prevent the soldering iron head from getting stuck with the heating body or sleeve. Always lock the soldering iron tip to ensure it is in place.
(2) When using, first set the temperature to around 200°C for preheating, and then set it to 300°C when the temperature reaches 300°C. When reaching 300°C, tin must be added to the tinned part of the front end of the soldering iron tip in time, and it will stabilize for 3~ After 5 minutes, test whether the temperature is standard, and then set it to the required operating temperature.
(3) When welding, do not use the soldering iron tip to pick or squeeze the object being welded, and do not use friction to weld. This will not help heat conduction and may damage the soldering iron tip.
(4) Do not use rough objects to rub the soldering iron tip.
(5) Do not use flux containing chlorine or acid.
(6) Do not add any compound to the tin-dipped surface.
(7) When not in use for a long time, lower the temperature to below 200°C, and add tin to protect the soldering iron tip. Do not wipe it; only wipe it on a wet sponge when welding, and re-smear the tip with new tin. share.
(8) After finishing the work for the day, when not soldering, wipe the soldering iron tip clean and re-spread new tin on the tip, store it on the soldering iron stand and turn off the power.
(9) If the tin-dip surface has been oxidized and cannot be tinned, or the oxide film has turned black due to flux and cannot be removed with a sponge, you can gently wipe it with 600-800 grit sandpaper, and then wrap it with tin wire containing flux. On the wiped tin surface, heat it until the tin contacts and melts, then add tin again.
