Solder wire is used for the soldering of manual electronic devices. It consists of tin alloy and additive. The characteristic of the solder wire is a tin alloy wire having a certain length and diameter, which can be used in combination with an electric soldering iron or a laser in the soldering of the electronic original device. Next, this article will explain how to use solder wire. Solder wire brand ranking.
　　 How to use solder wire?
1. For the selection of suitable high-quality solder, low-melting solder wire for soldering electronic components should be used.
2, the right amount of flux, with 25% rosin dissolved in 75% alcohol (by weight) as a flux, the right amount of flux is indispensable, but do not think that the more the better.
3. The soldering iron should be placed on the soldering iron frame. The soldering iron should be tinned before use. The specific method is: heat the soldering iron. When the solder can be melted, apply flux, and then evenly apply the solder to the soldering iron tip to make the soldering iron evenly eat a layer. tin.
4, welding method: the pads and components of the pins are polished with fine sandpaper, coated with flux. Dip a proper amount of solder with a soldering iron tip and contact the solder joint. After the solder on the solder joint is completely melted and immersed in the component lead, the soldering iron tip gently lifts up the solder joint along the lead of the component.
5, the welding time should not be too long, otherwise it is easy to burn the components, if necessary, you can use the tweezers to clamp the pins to help dissipate heat.
6, the solder joint should be sinusoidal peak shape, the surface should be bright and smooth, no tin thorn.
7. The amount of solder should be suitable. Excessive solder not only consumes more expensive tin, but also increases the welding time and reduces the working speed. What is more serious is that in high-density circuits, excessive tin can easily cause an undetectable short circuit.
8. After the welding is completed, the residual flux on the circuit board should be cleaned with alcohol to prevent the flux after the carbonization from affecting the normal operation of the circuit.
9. The integrated circuit should be soldered at the end, the soldering iron should be grounded reliably, or the residual heat should be used after the power is turned off. Or use an integrated circuit socket, solder the socket and then plug the integrated circuit.
　　 Solder wire brand ranking
　　 1. Yiyida (founded in 1985, a famous trademark in Guangdong Province, a high-tech enterprise specializing in the development, production and sale of electronic connecting materials, Shenzhen Yiyida Industrial Co., Ltd.)
　　 2. Yunxi YT (one of the longest and more complete industrial chains in the global tin industry, a very large tin production/processing/export base, listed company, Yunnan Tin Industry Co., Ltd.)
　　 3, ANSON (started in 1987, Guangdong Province famous trademark, set research and development / production / sales of dry tin and related chemicals, Guangdong Anchen Tin Products Manufacturing Co., Ltd.)
　　 4. Qiandao QiDa (a famous trademark in Guangdong Province, specializing in the development, production and sales of electronic solder, private technology enterprise in Guangdong Province, Dongguan Qiandao Metal Tin Co., Ltd.)
　　 5, Yatong welding materials (domestic large-scale high / medium / low temperature full range of brazing materials research and development production base, industry standard drafting unit, high-tech enterprises, Zhejiang Yatong Welding Materials Co., Ltd.)
　　 6, AIA solder (specializing in the development, production and sales of soldering materials, the company has a large and influential solder material company, Hangzhou Youbang Solder Material Co., Ltd.)
　　 7. Senju Senju (in 1938, Japan, the world's leading solder manufacturing company, a well-known solder wire brand with a high reputation, a large multinational company, Beijing Qianju Electronic Materials Co., Ltd.)
　　 8, Alpha Love Law (created in the United States in 1872, the world's leading professional solder manufacturers, top ten brands, the world's larger / technologically advanced solder accessories companies, I believe that Aifa Metal (Shenzhen) Co., Ltd.)
　 9. Powerful QLG (Research and development, manufacturing and sales of environmentally-friendly solder materials/high-voltage electrical products, large-scale electronic solder materials and electrical manufacturers, Zhejiang Strong Holdings Co., Ltd.)
　　 10, Tianlong Damno (founded in 1979, the lead-free solder industry standard drafting unit, the domestic large capacitor end face spraying metal material provider, Shaoxing Tianlong Tin Material Co., Ltd.)
The above is how Xiaobian introduced you about solder wire? The whole content of the solder wire brand ranking, I believe you should have some understanding of the solder wire after reading it. Different types of solder wire additives are different. The auxiliary part is to improve the auxiliary heat conduction of the solder wire during the welding process, remove the oxidation, reduce the surface tension of the material to be welded, remove the oil stain on the surface of the welded material, and increase the welding area.
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