What is the production process of the soldering iron tip of the electric soldering iron?
1. Straightening: The finished copper is generally a large roll, which needs to be stretched to straighten. Straightening is the beginning of the production of soldering iron tips. Straightening must be very straight, otherwise the product quality will be affected.
2. Cutting: cut into different lengths according to different types of products.
3. Turning of the head: The precision of the turner determines the appearance of the soldering iron tip. In addition to the industry's general standards, the factory also accepts customers' sample customization and can order products with drawings.
4. Polishing and degreasing: the vibration polishing machine polishes and removes the turning head burrs.
5. Iron plating: The key to the quality of the soldering iron tip is also the core technology of all soldering iron tips. In order to improve the quality of the soldering iron tip, instead of pure iron plating, all iron alloys are electroplated. The ratio of additives in the electroplating process will also determine the quality of the soldering iron tip.
6. Correction: The material after iron plating is prone to deformation and needs to be corrected to the required size.
7. Polishing: prepare for the electroplating surface.
8. Tinning: Pre-tinning is to prepare for the use of the soldering iron tip.
9. Surface electroplating: Generally, there are white chrome plating (displayed as silvery white), nickel-chrome-plated (displayed as bright color), and black chrome-plated (displayed as black). No matter what the appearance is, chromium is inseparable, and its function is to prevent tin from climbing.
Choose the power principle of electric soldering iron
1. When welding integrated circuits, transistors and other components that are vulnerable to heat, consider using a 20W internal heating or 25W external heating electric soldering iron.
2. When welding thicker wires and coaxial cables, consider using a 50W internal heating type or a 45-75W external heating type electric soldering iron.
3. When soldering larger components, such as metal chassis grounding pads, an electric soldering iron with a power of 100W or more should be selected.
Summarize:
The larger the tip of the soldering iron, the larger the heat capacity. When performing continuous soldering, the larger the tip of the soldering iron is, the less the temperature drop will be.
The heat capacity of the large soldering iron tip is high, and a lower temperature can be used during soldering, so the soldering iron tip is not easy to oxidize, and the service life of the soldering iron tip can be extended.
A soldering iron tip with a contact area between the soldering iron tip and the solder joint, a large contact area can produce effective heat transfer, and the size of the soldering iron tip is based on not affecting adjacent components. Soldering efficiency can be improved by choosing a geometry that allows sufficient contact with the solder joint.
The shape of the soldering iron tip is various. The selection points are: always keep a certain amount of solder, melt the solder on the joint quickly and effectively, do not produce false soldering, tinning, hanging tin, no burrs in the solder joints, and do not burn the board and components.
