Five tips for using electric soldering irons and four precautions for using electric soldering irons
Usage Tips
1. Before welding, clean the soldering iron head with a clean, dry sponge or cloth; During welding, first clean the old tin on the head of the soldering iron and follow the welding steps for welding; After welding, cut off the power supply first, let the temperature of the soldering iron head slightly decrease, and then coat it with a new layer of tin, which has better anti oxidation effect.
2. After two minutes of electrification, the electric soldering iron can be used when it reaches the welding temperature; When not in use for a long time, it is necessary to disconnect the power supply.
3. During and after the use of an electric soldering iron, keep the soldering iron head covered with tin to reduce the chance of oxidation and make the soldering iron head durable.
4. When using an electric soldering iron for welding, excessive pressure should not be applied to avoid damage or deformation of the soldering iron head. As long as the soldering iron head fully contacts the solder joint, heat can be transferred.
5. The area of the soldering iron tip in contact with the solder joint is directly related to the heat
When in use, the position of the soldering iron head can be freely controlled. When in normal use, the top end of the soldering iron is in contact with the solder piece and pad, with a small contact area and slightly lower temperature; In order to increase the welding temperature, the position of the soldering iron head can be appropriately changed to increase the area of the soldering iron head in contact with the weldment and the solder pad; In some circuits, the solder pads and solder components are not proportional, and the angle of the soldering iron head can be adjusted appropriately during welding to ensure uniform heating and improve welding quality.
matters needing attention
1. When using electric soldering irons for welding operations, there are various gripping methods, mainly including forward gripping, reverse gripping, pen gripping, etc.
Regardless of the gripping method used, it is necessary to pay attention to the direction of the power wire, which should be led from the back of the hand or arm direction. The wire should not be placed in the direction of the soldering iron head to prevent scalding and danger.
2. During the use of electric soldering irons, they should not be placed arbitrarily, but should be placed on a suitable soldering iron frame to avoid damage to the electric soldering iron head due to collision; At the same time, it is also important to handle with care; Place the soldering iron away from flammable and explosive objects to avoid burns and damage, which may cause a fire. After using the soldering iron, cut off the power in a timely manner. Extend the service life of electric soldering irons. Prevent oxidation of the soldering iron tip.
3. When using an electric soldering iron for the first time, it is easy to make some mistakes, such as always plugging the soldering iron into the power supply and powering it on, regardless of whether it is used immediately.
When using an electric soldering iron, it is found that the temperature of the soldering iron is too high or the soldering iron head is severely oxidized, making it difficult to use. Some users, regardless of the condition of the soldering iron head, think that as long as the electric soldering iron has heat, they can weld components. When the oxidation layer is thick or there is dirt, long-term welding not only leads to poor welding quality, but also leads to circuit board solder pads falling off or component soldering failure.
4. When welding, first handle the electric soldering iron before welding, which not only improves the welding quality but also saves welding time.
