The classification, characteristics and application of electroplated tin, tin-lead alloy and tin-bismuth alloy are summarized.Electroplating lead-tin alloys have different components and different uses. For example, alloys with tin content of 5% to 10% are used for anti-friction coatings, alloys with tin content of 15% to 25% are used for lubrication and flux coatings, and alloys with tin content of 45% to 55% are used for seawater corrosion prevention. Or replace cadmium coating, alloys with tin content higher than 55% are often plated on steel, copper and aluminum surfaces for brazing coating. Now, due to the limitation of the amount of lead used in electronic products, the tin alloy used for soldering has been plated with an alloy of tin and silver, copper, bismuth, etc. without lead.

1. This method has been successfully applied to the determination of tin, copper and lead in tin-copper-lead alloy electroplating solutions and their coatings.

2. The electroplating process of lead, tin and lead-tin alloy using two products is introduced.

3. The electroplating lead-tin alloy is replaced by the hot-dip lead-tin alloy, and the hot-dip lead-tin alloy process and the end column casting process are studied.

4. Alloys such as tin welding parts, lead-tin alloys, zinc die-casting parts, bronze plating, and high-grade copper are often pre-plated with copper to improve the bonding force before electroplating.

5. The main products are: solder wire, solder bar, lead-free tin wire, lead-free tin bar, solder paste, tin ingot, flux, electroplating anode rod, babbitt alloy, etc.

6. Apply ultrasonic waves to tin shop alloy electroplating.