Company News

Causes of solder slag from lead-free environmentally friendly tin bars

Views : 97
Update time : 2022-09-26 11:26:46
Lead-free environmentally friendly tin bars will also produce solder slag during the welding process, which is a normal oxidation phenomenon. The lead-free environmentally friendly tin bar is made of pure tin and trace copper. Antioxidants are added to it. Compared with traditional tin bars, it has high wettability, good fluidity, and is easier to tin. At the same time, the solder joints are bright and full, and there will be no false soldering. It has become the main choice for wave soldering today. So what causes solder slag?
1. The content of tin:
The tin metal in the tin bar is the main component. If the content and purity of tin are not enough, it means that impurities and other elements will increase, which also increases the chance of tin dross overflowing.
2. Furnace temperature control:
Regardless of whether the lead-free environmental protection tin bar has a fixed melting point and operating temperature, if the temperature of the welding furnace is not properly controlled, the oxidation process will be accelerated, and more tin slag will overflow. When the furnace temperature is high or low, black tin ash oxide will continuously appear on the liquid surface of the tin furnace.
Three, tin metal characteristics:
No matter the lead-free environmental protection tin bar is made of tin alloy, tin will chemically react to produce tin dross oxide during the continuous contact with air. In the welding operation, the tin bar changes from solid state to liquid state through high temperature, which will greatly increase the oxidation rate of tin, and the tin dross will increase.
4. Antioxidant elements:
In the production of lead-free environmentally friendly tin bars, anti-oxidant element metals must be added, the purpose of which is to inhibit the air oxidation rate at blast furnace temperature and reduce tin slag. If the amount of antioxidant elements added is not enough, the tin slag will overflow more.
Related News
Read More >>
Spot Tin Ingots: Insights into Market Dynamics, Applications, and Global Trade Trends Spot Tin Ingots: Insights into Market Dynamics, Applications, and Global Trade Trends
Apr .18.2024
Spot tin ingots represent a vital commodity in the global market, serving as a fundamental raw material in various industries due to their exceptional properties and wide-ranging applications.
Exploring the Purity and Versatility of Pure Tin Bars in Industrial Applications Exploring the Purity and Versatility of Pure Tin Bars in Industrial Applications
Apr .16.2024
Pure tin bars, renowned for their exceptional purity and malleability, play a vital role in various industrial sectors, ranging from electronics manufacturing to food packaging.
Unveiling the Wonders of Tin Wire: Applications, Benefits, and Versatility Unveiling the Wonders of Tin Wire: Applications, Benefits, and Versatility
Apr .15.2024
Tin wire, often overshadowed by its more well-known counterparts, holds a wealth of potential and versatility across various industries.