Reveal The Cause of Copper Wire Yellowing in Wire And Cable

In a sense, the wire and cable manufacturing industry is a material precision processing and assembly industry. First, the material consumption is huge, the material cost of cable products should account for 80-90% of the total manufacturing cost; second, the types of materials and varieties, the performance requirements are particularly high, such as the conductor copper purity should be above 99.95%, some products should use oxygen free high purity copper; third, the selection of materials will have a decisive impact on the manufacturing process, product performance and service life. Among them, the selection of copper wire is especially important, if a little careless may cause safety accidents.

Asia Electric and Cable Technology Co., Ltd. is a large wire and cable enterprise integrating research and development, manufacturing and sales. The raw materials of the products are selected from Tianjin seamless, Zhengwei Group, Jiangxi Copper, and many other domestic global group companies led by the complete industrial chain of non-ferrous metals, to provide the company with high precision, high purity, no impurities of high quality raw materials, to ensure the quality of the company's products. The implementation of mechanized production and fully automated assembly line operations, to ensure that every wire and cable meets the national (GB / JB) and international Electrotechnical Commission (IEC) standard production. The following is the Asian port for you to arrange some copper wire yellow reasons and treatment methods oh!

It is usually seen for several reasons:

1. The tin furnace temperature is too high and the fluidity is large, resulting in the coating pinhole is too large and the copper and tin penetration is fast

2, the tin layer is too thin, and the copper and tin penetration is fast

3, fluder halogen residue too much, copper surface pickling is not thorough enough

4, the packaging time is too fast, the heat is not scattered, the tin furnace impurities are too much

5. Copper quality is not up to the standard, too many impurities

6. Temperature has an impact on the activity of copper atoms, and yellowing is faster in hot days than in cold days

This problem is addressed as follows:

1. Mold aperture> line through + 0.02mm (the purpose is very simple and can not be too thin coating);

2. After production, place it for about 2 hours before packaging (purpose: internal heat dissipation)

3. Purchase good flux, with good flux concentration, mainly flux affect the quality of tin plating;

4. Choose a better anaerobic copper wire;