The one directly plugged in
When the new purchase is used, it will smoke, because the heating wire will accelerate the oxidation of some of the new components, after a while will be fine
Normal! The cap will be gone for a while!
First, the purchase of electric iron in the first use of electric iron smoke occurs, it is normal, because the electric iron has just appeared on the head of soldering flux, is the first use, yes, there will be smoke phenomenon.Two, the use of electric iron note:1, try to use low-temperature weldingHigh temperature will accelerate the oxidation of the iron head and reduce the life of the soldering iron head. If the iron head temperature exceeds 470 degrees C, its oxidation rate is 380 times C two times.2, do not put too much pressure onDo not put too much pressure on the welding, otherwise it will damage the iron head. The heat can be transmitted as long as the soldering head is sufficient for contact with the solder joint. In addition, choosing the right iron head can also help heat transfer.3. Always keep the tin on the tip of the ironThis will reduce the oxidation of the iron head and make the iron head more durable. After using the soldering iron, the soldering temperature should be slightly reduced before adding new solder, so that the tin coating has better oxidation resistance effect.4. Keep the iron head clean and clean the oxide immediatelyIf there is a black oxide on the head of the soldering iron, the soldering iron will probably not reach the tin. It must be cleaned immediately. When cleaning, first iron head temperature is about 250 degrees C, and then clean sponge clean iron head, and then tin. Repeat the action until the oxide is cleared.5 、 choose the flux with low activityHighly active or corrosive flux will accelerate the corrosion of the iron head when it is heated, so low corrosive flux should be used.Note: do not use sandpaper or hard clean iron head.6, put the iron on iron frameWithout the use of iron, the iron should be carefully placed in the appropriate welding metal frame, so as to avoid collision damage caused by iron head.
