How to Choose the Suitable Soldering Iron head?
The soldering iron head is usually made of copper, and its basic shapes are pointed, conical, horseshoe shaped, flat beaked and knife edge shaped.
Size of soldering head
The general rule is to use the largest soldering head as far as possible. The better the welding line is, the lower the setting can be. It is recommended to use a low temperature setting as much as possible, as high temperature can quickly burn off the flux and may eventually lead to poor welding due to increased oxidation of the joint. High temperatures also shorten the life of the tips and increase the risk of thermal damage to components and PCB.
In the case of using low-power soldering iron, when contacting the circuit board and components, the soldering head may cool down faster and take longer time to heat. If the component is small, the lower power soldering iron should be suitable, but for the larger component or PCB with ground plane, because it will take away heat, the higher power soldering iron will be better. As mentioned above, it is recommended to use a large size soldering head.
It is inevitable to wear on the surface when using the soldering head, and the service life of the soldering head is determined by the number of solder joints. If the coating on the tip of the soldering iron head is thick, the service life of the soldering iron head can be prolonged, but on the other hand, the heat conduction effect will be affected, and it will take a long time to reach the required temperature.
Sequre provide 8 Types sodering iron tips.
Maintenance of soldering Iron head
If the newly purchased soldering iron head is not pre tinned, it should be tinned in the initial use to make the welding smooth.
The tin plating process is as follows:
1) Connect the electric iron to the power supply
2) When the temperature of the soldering iron head reaches 260 ℃, apply the tin wire containing rosin evenly on the iron head, and repeat several times.
Maintaining tin plating on the tip is also important to avoid oxidation, which reduces heat transfer efficiency, and to extend the service life of the tip. If the soldering iron head appears oxidation or burning black phenomenon, do not use file or sandpaper to polish, so as to avoid damage to the electroplating metal and shorten the working life. To clean the tip of the soldering iron, you just need to add tin wire to a slightly wet soldering iron sponge, and then wipe it repeatedly to remove oxide or dirt.
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