lead free solid solder wires

Lead free solid solder wires

What does lead free solid solder wires mean?

1. Solder wires can be classified as tin lead solder wire or lead free solder wire, this depends on the composition of the metals. The tin lead solder wire is the conventional solder alloy that is consisted of tin and lead, ranging from solder wire 63/37 down to solder wire 5/95; The lead free solder wire is designed to replace tin lead solder wire after ROHS regulation was implemented in year 2006, the may composition is tin, silver and copper without lead, ranging from SAC305 lead free solder wire to SAC07 Lead free solder wire. Lead free solder wires is becoming more and more widely used in the electronic business.

2. The lead free solid solder wires, the word solid is referring to the core, that it's made of a solid core without flux. As we know that to solder we need to use flux in order to help the solder to better molten and flow during soldering, if you choose a solid core solder wire, then users have to prepare the compatible flux in separate. Supplementary to the solid solder wire, is the type called pre-fluxed core solder wire, this type of solder wire is implemented with a rosin flux inside the wire so during soldering there's no need to use external flux.

What are lead free solid solder wires used for?

The lead free solid solder wires are used for soldering of electronic components and electrical appliances that require ROHS compliance, and also it's used to solder the drinking water pipes. Reason to use a solid solder wire rather than a pre-flux core solder wire, is in some automatic soldering especially the complicated soldering process that might need multiple times of soldering, a solid core solder wire can help to avoid the little residue that a pre-flux core solder wire might bring.

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