We use cookies to improve your online experience. By continuing browsing this website, we assume you agree our use of cookies.

Industry News

Analysis of the Causes of Soldering Points of Flux-cored Tin Wires

Views : 126
Update time : 2022-09-22 11:20:05
Analysis of the reasons for the solder joints of flux cored tin wires:
1. The flux is in poor contact with the bottom surface; the floor and the welding angle are improper
2. The specific gravity of the flux is too high or too low, and the original bottom plate and leads are not handled properly.
3. The transmission speed is too fast or too slow; the standard speed is 1.2-1.5M/min. When it is too fast, the solder joint will be sharp and shiny; if it is too slow, the solder joint will be slightly round and stubby;
4. Too much anti-oxidation oil in the tin furnace or deterioration, and the direction and arrangement of the component wiring are not good;
5. The preheating temperature is too low or too high; before entering the tin furnace, the standard bottom surface is 78-98 ℃;
6. The temperature of the tin furnace is too low or too high; the standard temperature is 250-254 ℃; when it is too low, the solder joints are sharp and shiny; when it is too high, the solder joints are slightly round and stubby;
7. The solder in the tin furnace contains impurities, and the wave peak of the tin furnace is unstable;
The influence of impurities on the performance of solder joints
In addition to tin and lead, the flux cored tin wire often contains a small amount of other elements, such as copper, antimony, bismuth, etc. In addition, the impurities on the PCB and component feet will also be brought into the tin furnace during the soldering operation. These elements will affect the performance of the solder. The following table lists the allowable range of impurities in the Chinese electronics industry standard SJ/T10134-94. and its effect on solder joint performance.
Related News
Read More >>
High Purity Tin Ingot: Crucial Applications and Benefits High Purity Tin Ingot: Crucial Applications and Benefits
May .14.2024
High purity tin ingots are indispensable in various industries, offering exceptional quality and performance.
Pure Tin Ingot: Essential Material for Diverse Industrial Applications Pure Tin Ingot: Essential Material for Diverse Industrial Applications
May .10.2024
Pure tin ingots are indispensable raw materials utilized in various industrial sectors for their unique properties and versatile applications.
Unlocking the Potential of Pure Tin Bars: Essential Components for Diverse Industries Unlocking the Potential of Pure Tin Bars: Essential Components for Diverse Industries
May .06.2024
Pure tin bars, renowned for their exceptional purity and versatility, serve as fundamental building blocks across a spectrum of industries, from electronics to metallurgy.
Lead Bar for Sale: Uses, Specifications, and Buying Considerations Lead Bar for Sale: Uses, Specifications, and Buying Considerations
Apr .30.2024
Lead bars are essential industrial materials with diverse applications across various sectors. In this article, we explore the uses, specifications, and important considerations when purchasing lead bars for sale.
pop_close
pop_main
Leave us your e-mail address and we'll give you a free consultation.
1. Price reference LME, more favorable 2.Transportation is safer and more reliable with CRF.