What is the production process of the soldering head of an electric soldering iron
1. Straightening: The finished copper is usually a large coil that needs to be stretched and straightened. Straightening is the beginning of the production of soldering iron heads, and it must be very straight, otherwise it will affect the product quality.
2. Cutting: Cut into different lengths based on different models of products.
3. Head turning: The precision of the lathe determines the appearance of the soldering iron head. In addition to industry standards, the factory also accepts customers to customize products according to samples and drawings.
4. Polishing, degreasing: Vibration polishing machine polishing to remove burrs from the turning head.
5. Iron plating: The key to the quality of soldering iron heads and also the core technology of all soldering iron heads. In order to improve the quality of soldering iron heads, pure iron plating is no longer necessary. All are electroplating iron alloys, and the ratio of additives during the electroplating process will also determine the quality of soldering iron heads.
6. Correction: The material after iron plating is prone to deformation and needs to be corrected to the required size.
7. Polishing: Prepare for electroplating appearance.
8. Tin loading: Pre tin loading is used to prepare the soldering iron head for use.
9. External electroplating: Generally, there are white chromium plating (displayed as silver white), nickel chromium plating (displayed as bright color), and black chromium plating (displayed as black). No matter what the appearance, it cannot be separated from chromium, its function is to prevent tin from crawling.
The principle of selecting the power of an electric soldering iron
1. When welding components such as integrated circuits, transistors, and other vulnerable parts to heat, consider using a 20W internally heated or 25W externally heated soldering iron.
2. When welding thicker wires and coaxial cables, consider using a 50W internally heated or 45-75W externally heated electric soldering iron.
3. When welding larger components, such as metal chassis grounding pads, an electric soldering iron of over 100W should be selected.
The larger the soldering head is, the larger the Heat capacity is. When continuous welding is performed, the larger the soldering head is, the less the temperature drop will be.
The large soldering iron head has high Heat capacity and can be welded at a lower temperature. The soldering iron head is not easy to oxidize and can extend the service life of the soldering iron head.
A soldering iron head with a contact area between the soldering point and the soldering iron head. A large contact area can generate effective heat transfer, and the size of the soldering iron head is based on not affecting adjacent components. Choosing a geometric size that can fully contact the solder joint can improve welding efficiency.
There are various shapes of soldering iron heads, and the key points to choose are: to regularly maintain a certain amount of solder, quickly and effectively melt the solder on the joint, without false soldering, overlap or hanging solder, without burrs on the solder joints, and without burning the board and components.
