Where is the position of high-temperature solder wire: The solder wire used for manual electronic component welding is composed of tin alloy and additives. During electronic welding, the solder wire is matched with the electric soldering iron, and the high-quality electric soldering iron provides stable and continuous melting heat , The solder wire is added to the surface and gap of the electronic original device as a filler metal, and the fixed electronic original device becomes the main component of welding. The composition of the solder wire is inseparable from the quality of the solder wire, which will affect the chemical properties of the solder wire and mechanical and physical properties. Solder wire without additives cannot solder electronic components because it does not have wettability and expandability. However, the welding will produce spatter, and the solder joints will not form well. The performance of the additives developed for a long time will affect the performance of the solder wire welding. Hazards of high-temperature tin wire: The smoke and dust produced by soldering tin may cause tin pneumoconiosis. Usually, the occupational hazard has a greater impact on the respiratory tract and lung; if tin oxide and tin dioxide are inhaled, according to the international chemical safety card: it may cause respiratory tract. Mechanical irritation, prolonged repeated exposure, may damage the lungs, leading to benign pneumoconiosis (tin pneumoconiosis). However, it is not directly mentioned in the occupational hazard catalogue. The contents of related tin are: lead and its compounds (lead dust, lead fume, lead compounds, excluding tetraethyl lead). Possible occupational diseases: lead and its compounds poisoning. Industry example:

1. Heavy non-ferrous metal smelting industry: tin ore pre-furnace ingredients, tin ore fuming; tin smelting, tin refining, tin ore fuming, tin electrolysis.

2. Electrical machinery and equipment manufacturing: wire and cable tinning.

3. Electronic and communication equipment manufacturing industry: circuit substrate sintering, tinning of components, wave soldering of components, manual soldering of components. Protection: operation must be done in a ventilated environment. If you work in the same place for a long time, it is best to install the air fan.