CHF 2.90

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Package includes: 1 piece of paste flux The product will be upgraded constantly, the appearance and color may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Cleaning angle: no cleaning Melting point: 128℃ Type: Rosin Working temperature: 100-480℃ product description: 1. This product is suitable for welding general instruments, meters, copper tin iron, etc., and is very helpful for the welding of circuit boards. When the soldering iron tip or the surface of the component is oxidized, it is not easy to tin and solder. After the soldering iron is soaked in rosin Oxidation can be quickly removed, making the components extremely easy to weld and the soldering effect is obvious. 2. Rosin is the oil that flows out of the pine tree trunk after being melted into water at high temperature, and it becomes a massive solid (without a fixed melting point) after drying. Its color is brown and deep red. It is mainly used as a flux for soldering electronic circuits and in musical instruments. Mainly used to rub the strings of musical instruments to make them astringent. 3. Since the metal surface will form an oxide film when it comes in contact with air, the higher the temperature, the more severe the oxidation. This oxide film prevents the wetting effect of liquid solder on the metal, just as oil on the glass prevents water from wetting. Flux is a special material used to remove oxide film, also known as flux. Flux has three functions (1) In addition to the oxide film. The essence is that the substance in the flux undergoes a reduction reaction to remove the oxide film, and the reaction product becomes a suspended slag that floats on the surface of the solder. (2) Prevent oxidation. After melting, it floats on the surface of the solder to form an isolation layer, thus preventing the oxidation of the soldering surface. (3) Reduce surface tension. Increase solder fluidity and help solder t