What to do if the soldering iron tip is oxidized

Nov 05, 2023

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What to do if the soldering iron tip is oxidized

 

How to solve the problem of oxidation of soldering iron tip? First of all, Shenzhen Longdingsheng Technology will introduce to you the material of the soldering iron tip. The material of the soldering iron tip is generally
Made of copper material. In order to protect the soldering iron tips from being oxidized and rusted under high temperature conditions, the soldering iron tips are often electroplated, and some soldering iron tips are also plated.
Made of alloy material that is not easily oxidized.


According to the mechanical structure, it can be divided into internal heating type soldering iron and external heating type soldering iron. According to its function, it can be divided into soldering iron without solder and soldering type soldering iron. According to different uses, it can be divided into high power soldering iron and low power soldering iron.


The oxidized soldering iron tip will turn black because the oxidation reaction between the soldering iron tip and oxygen in the air occurs at high temperature. Therefore, the soldering iron will turn black after being used for a period of time. You don’t need to worry about this. After turning black, the soldering iron will naturally form a strong thermal conductivity, which will have certain benefits for your use.
But if you feel bad, we can use a file or emery cloth to remove it.

If you don't want the soldering iron tip to turn black, you can plate it with a tin layer that is difficult to oxidize. When the tin plating layer contains black oxide, a new tin layer can be plated, and then the soldering tip can be wiped clean with a cleaning sponge. This cleaning process is repeated until the oxide is completely removed, and then a new tin layer is plated. Use toothpaste or polish
Wipe with light paste, be careful to use gentle force.


Maintenance of soldering iron tip
The soldering tip is a consumable item, and correct use and maintenance can greatly extend the life of the soldering tip. First of all, before using a new soldering iron tip for the first time, be sure to adjust the soldering iron temperature to 220 degrees to allow the tinned part of the soldering iron tip to fully absorb the tin. It is best to soak it in the tin pile for 5 minutes, and then wipe it with a cleaning sponge. Test clean, adjust the soldering iron temperature to 300 degrees again, repeat the above procedure, and finally adjust the soldering iron temperature to the required operating temperature for use. The purpose of this is to form a protective film on the tin layer of the soldering iron tip to prevent the new soldering iron tip from being directly oxidized at high temperatures. Before leaving get off work every day, wipe the soldering iron tip clean on a cleaning sponge, and then apply a little fresh solder. Before use the next day, wipe the soldering iron tip clean on a cleaning sponge and re-tin it before use. By operating in the above manner, the service life of the soldering iron tip can be maximized. It should be pointed out that the operating temperature of the soldering iron tip should not be too high. The higher the temperature, the shorter the life of the soldering iron tip. Generally, the recommended operating temperature is 350 degrees. Under normal circumstances, when the soldering iron operating temperature is 350 degrees, works 8 hours a day, and is maintained according to normal maintenance procedures, the service life of the soldering iron tip is generally about 30,000 solder joints.


When there is no work, be sure to ensure that the soldering iron tip is protected by tin. When welding, the operator should not make scratching movements. The amount of water on the sponge used to rub the soldering iron tip should be appropriate. It is appropriate to hold it lightly and have two or three drops of water. Clean the sponge every two hours or so. , rub the sea surface before welding work, and do not rub it after the work is completed to prevent the tip from oxidizing. Operators should not use the tip to collide with hard objects to prevent damage to the surface coating of the tip.

 

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