- New
Changes in the approach to ecology meant that the subject of environmental protection also burst into the area of electronics. The gradual withdrawal of subsequent harmful substances (mainly heavy metals) as part of the implementation of successive versions of the RoHS directive resulted in a very strong limitation of the scope of legal applicability of solders based on tin and lead (Sn60Pb40). They have been replaced with much more modern materials, in which tin occupies about 99% of the weight of the alloy, and the rest are admixtures of other metals (usually copper and silver). What is important - although the initial versions of lead-free solder caused considerable difficulties for engineers, the development in the field of the alloys themselves, as well as the fluxes used with them, meant that today RoHS-compliant soldering is no different (except temperature) from working with "lead tin". .
