The reason why the soldering iron does not stick to the tin and how to solve the problem
Soldering iron is engaged in electronic hardware soldering technicians must have one of the tools, there is a good use of the soldering iron on our welding debugging electronic circuits have twice the effect with half the effort, can greatly improve operational efficiency. But just learn to use the soldering iron friends will have this experience, that is, the soldering iron head does not stick to tin, will find the melted tin like water beads like sticky Fu in the top of the soldering iron head, some more serious will find that the soldering iron simply can not stick to tin. These phenomena give us welding electronic components bring very big trouble, then how to eliminate this phenomenon? Today take this issue and friends talk about how to solve the problem of soldering iron tip does not stick to the tin.
The reason why the soldering iron tip does not stick to the tin
We want to solve the soldering iron head does not stick to tin first of all to understand the reasons why the soldering iron does not stick to tin, we use the soldering iron friends know that the soldering iron is divided into long-life tip-shaped soldering iron head and common type of soldering iron head, for the long-life tip-shaped soldering iron head it is mainly composed of copper, iron, nickel, chromium, tin five kinds of metal materials composed of metal head; for the common type of soldering iron head is mainly composed of copper or red copper. Especially for copper, iron and other metals are easily oxidised by heat. After oxidation of the soldering iron head will form a very thin layer of oxidised metal material on the surface, this oxidised metal material is difficult to bond with the melted metal tin, which is the main reason for the soldering iron head not sticking to tin.
Solve the method of soldering iron head not sticky tin
Below and friends to share how I deal with the soldering iron head does not stick to the tin. Because I usually use the ordinary soldering iron head, when accidentally soldering iron head encounter oxidation when my first step is to file the soldering iron head to file a thin layer of metal oxides wrapped around the head of the soldering iron to file off the head of the soldering iron to reveal the new copper so far, and then electrified until the head of the soldering iron to reach the heat of the rosin on some, and so on, until the head of the soldering iron head to reach the temperature of the soldering iron wire melting the entire head of the branding iron wrapped with a layer of tin, so that the head of the soldering iron is very easy to "eat". This way, the tip of the soldering iron will be easy to "eat" tin. For the long life of the tip of the soldering iron I recommend sandpaper polishing, also with the same method of tin.
Maintenance method of the soldering iron head after use
Soldering iron to be used for a long time I think it is important to focus on maintenance, such as the maintenance of the iron head is when the completion of the welding work must not forget to add a layer of solder on the iron head, the purpose of doing so is to prevent the iron head oxidation once again. Next time in the use of power after heating to the solder melting when you can use a damp high-temperature sponge to wipe off the surface of the oxidation of the adherents, you can continue to use.
In addition, do not knock when using the soldering iron, especially do not develop a hand to shake the soldering iron on more than the solder melt, so easy to hurt others. Take and put the soldering iron should be light to take and put the soldering iron can not be thrown or it will damage the inside of the heating wire.
