refers to the composition of tin alloy and flux. Lead solder alloy is divided into tin-lead + lead flux. Environmentally friendly solder is composed of tin-copper alloy + lead-free flux. Solder Wire is mainly used to fill, repair, and connect the main welding materials between two components, so what materials can solder wire weld, let's talk about it:
Not all materials can be connected by soldering. Only some metals have good solderability (strictly speaking, they should be able to be soldered), and they can be connected by soldering. Among the solder materials, we commonly use ordinary tinned copper pins/copper wires, nickel-plated materials, aluminum materials, stainless steel materials, galvanized materials, etc. When choosing tin wires, we need to understand the composition of the soldered materials Elements, in order to choose a suitable solder wire. Our commonly used lead-free solder wire can only solder copper or other metals with copper plating on the surface. Welding other metals or metals with poor solderability requires special or special solder wire. Special flux will be added inside the special solder wire Or rare metals to increase the difficulty of welding.