The soldering iron probably the common tool which you can find in the most homes in the U. S. The primary function of this tool is to melt the hot metal solder onto the joints. Fault the straightener which can be used to dissolve the metal is the tip of the straightener. the link
You may find the people utilize the tool for the electronic repair and sore joints which have the low electric power rating. It is better so that you can do the proper melting process. You also need to keep the solder carefully. If you the poor technique to do both of them, you may face the problem to adhere the solder to your iron or to the joint where you will attach it.
However, if you find the problem, you could solve it by yourself because the difficulty level is very easily. To do this, you have to organize the tools like the soldering iron, the solder, the sponge, and water.
The initial thing you should do is to warm up the tool. Start the iron’s power by insert the tool. Wait for an some minutes. It is better whether it reaches 400 Grad degrees. If your straightener has the preheated function, you should wait the tool to indicate it.
You should wet the small sponge with the cold water and put it near the preheating tool. You can check if the iron is preheated or not by holding the end to the solder. In case the solder is already preheated, the solder will melt.
There after, you need to clean the tool’s tip with the sponge. You will need to roll the iron’s tip to the solder’s piece. This step has the purpose to cover the iron with the solder. This process is referred to as tinning. If you do it properly, your solder will be able to flow to the joint.