Connectors not eat tin is the reason? It do? If you exclude the welding process issues, such as solder temperature Teflon line, suitable flux, solder over time, do not eat tin oxide may be the contact surface or not clean result, pay attention to open the package should be used as soon as possible supply Teflon line, the storage environment to keep dry. There is a bad product coating, substrate exposed, can also cause eating tin. It should first determine what is causing. If the process issues, it is necessary to improve the process, for example, choose a suitable flux, set the corresponding solder temperature, adjust the furnace time (reflow), or chain speed (wave) and the like; if pins are dirty, Targeted need cleaning; if it is oxidation problem (basically no solder to eat, or even if there is no infiltration of state tin) more trouble, and now there is no good reducing agent to remove the oxide layer, you may want to consider retirement Processing, practice ultrafine Teflon line, in the case of small quantities of some companies after scraping the oxide layer welding methods, but the reliability of this approach has not been verified. Connector anti corrosion coating function connector should first consider is corrosion protection. Most electrical connector contacts shrapnel is made of copper alloy, copper alloy and the electrical connector in a typical working environment susceptible to corrosion, such as oxide and sulfide. In fact, for closing the contact coating is in contact with the working environment shrapnel separated to prevent corrosion of copper. Of course, the coating material must not be damaged (at least in the hazardous range) in their work environment. As an important function of corrosion protection while optimizing the interface is to select suitable contact plating material considerations. Supply Teflon wire | Song Chong-wook electronic products factory | Teflon line consists of Dongguan Shijie Xu Chong-electronic products factory provided. Dongguan Shijie Xu Chong-electronic products plant (chuangxs.1688.com) (www.chuangxs.1688.com) Dongguan, Guangdong, connectors leaders, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Song Chong-wook in electronic products factory leadership with the staff warmly welcome all inquiries negotiations to create electronic products factory Song Chong-wook better future.