How to protect the soldering iron
Maintenance of the soldering iron
1, pull off the power supply while a little heat in the head of the soldering iron point a little rosin: you can let the rosin to protect the head of the soldering iron;
2, usually do not use the soldering iron when it is wrapped in white paper, placed in a cool and ventilated place: is it necessary to wrap the paper? Not necessarily? Lightly put, avoid humidity is always right;
3, do not let the soldering iron head is not working in the "high temperature" state, so as not to be over-oxidized, is to extend the life of the iron head is the key measures (for non-thermal iron);
4, do not use poor quality or present excessive acidic solder and flux, pay attention to the use of relatively stable power supply voltage, are favorable to the soldering iron head and iron.
Maintenance of the soldering iron head
1、Before the soldering work
Must first clean sponge wet water, and then squeeze dry excess water. This can make the soldering iron head to get the best cleaning effect. If you use non-wet cleaning sponge, it will make the soldering iron head damaged and lead to not on the tin.
2、When soldering
The following order of soldering can make the soldering iron head get the protection of solder and reduce the oxidation speed.
3、After soldering
First, set the temperature to about 250°C, then clean the tip of the soldering iron and add a layer of new tin for protection. (If you use a non-temperature-controlled soldering iron, first cut off the power supply, so that the temperature of the soldering iron head is slightly reduced before the tin.)
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Precautions
a. Try to use low-temperature welding
High temperature will make the soldering iron head to accelerate oxidation, reduce the life of the iron head. If the temperature of the soldering iron tip exceeds 470°C, its oxidation rate is twice as fast as 380°C.
b. Do not apply too much pressure
When soldering, please do not apply too much pressure, otherwise the iron head will be damaged and deformed. As long as the iron tip can be full contact with the soldering point, the heat can be transferred. In addition, choosing the right soldering iron tip can also help the heat transfer.
c. Often keep the soldering iron tip tinned.
This can reduce the chance of oxidization of the iron tip and make the iron tip more durable. After use, the temperature of the iron head should be slightly reduced before adding new solder, so that the tin layer has a better anti-oxidation effect.
d. Keep the soldering iron tip clean and clean up the oxides immediately.
If there is black oxide on the iron head, the iron head may not be tinned, and must be cleaned immediately. Clean up the soldering iron head temperature to about 250 ° C, and then use a clean sponge to clean the soldering iron head, and then on the tin. Repeat the action until the oxides are cleaned up.
e. Choose low activity flux
High activity or corrosive flux will accelerate the corrosion of the soldering iron head when heated, so you should use low corrosive flux. Note: Do not use sandpaper or hard objects to clean the soldering iron tip.
f. Putting the soldering iron on the soldering iron stand
When you don't need to use the soldering iron, you should carefully place the soldering iron on a suitable soldering iron stand to avoid the soldering iron head being damaged by collision.
g, choose the right iron head
It is very important to choose the right size and shape of soldering iron tip to make the work more efficient and increase the durability of soldering iron tip. Choosing the wrong iron tip will affect the soldering iron can not play the highest efficiency, the welding quality will also be reduced.
The size of the soldering iron tip is directly related to the heat capacity, the larger the tip, the larger the heat capacity, and the smaller the tip, the smaller the heat capacity. When continuous soldering is performed, the larger the iron tip is used, the less the temperature drop will be. In addition, because of the high heat capacity of the large iron head, the soldering can be used at a lower temperature, the iron head is not easy to oxidize, increasing its life.
