Steps for Eating Tin for Electric Soldering Iron Tip: Detailed Description
1. Grinding or wiping
The polishing or wiping requirements for ordinary heads and long life heads are different.
(1) Ordinary head: First, use sandpaper or a file to polish it, and the length of the polishing should be slightly longer than the height of the inclined surface. Be careful and careful until the surface is clean and smooth. Then, use a clean and dry cloth to wipe it clean.
(2) Long life head: cannot be polished or filed, can only be wiped clean with a clean and dry cloth.
2. Eating tin
This step is to make the soldering head of the electric soldering iron eat tin. Prepare a small box of rosin (although the soldering wire contains rosin, the amount is too small to eat tin), connect the power plug, wait for a moment, and the soldering head will heat up. Use the soldering head to dip in the rosin to estimate the temperature.
Just being able to melt rosin indicates a lower temperature; White smoke from rosin and severe purple hair from soldering iron indicate that the temperature is too high; The temperature is optimal only when rosin quickly melts and does not emit a large amount of smoke.
When the temperature of the soldering iron head reaches its optimal level, evenly dip the soldering iron head with rosin.
The soldering iron dipped with rosin should quickly melt the solder wire on the soldering iron frame plate to make it a large solder spot (add a little rosin). The soldering iron head should repeatedly immerse the rotating solder spot until the polished part of the soldering iron head is evenly coated with tin.
3. Aging
After eating tin, the soldering iron should be aged.
Aging refers to temporarily not using a soldering iron for welding, allowing it to continue heating with electricity for a while, then unplugging the power cord and placing it on the soldering iron frame to allow it to cool naturally.
Aging can extend the service life of soldering iron heads and cores, especially for newly replaced soldering iron heads and cores. After eating tin and aging soldering iron, it can be used normally in the future.
Before conducting a new round of electrified welding on a normally used electric soldering iron, it is necessary to check whether the soldering iron head has "burnt" or "port incomplete" phenomena.
Burn to death "refers to the oxidation of the tin eating area of the soldering iron head, which turns into a burnt black head and no longer dips in tin or has poor dipping ability; Port defect "refers to the deformation or cracking of the working surface.
When using an electric soldering iron for welding operations, if both situations occur, the soldering iron head needs to be re tinned.
