What is the technology behind the soldering process?
Soldering is a thermal process for the bonded joining of materials. With the help of a soldering iron or laser, the required heat is provided for solid soldered joints and for melting the solder. This allows various components and materials – such as those made of nickel, copper, metal, steel, iron and aluminum – to be bonded together. A metal alloy that melts easily (called the solder) serves as the bonding material for the soldered joint. Soldering process equipment includes an automatic, programmable solder feeder and a variety of sensors for process monitoring. One special application is soldering in a vacuum or shielding gas. These processes are used to ensure that stringent cleanliness requirements are met, e.g.?for semiconductor assembly or in the production of high vacuum systems or electron tubes.
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Distinction between two different soldering technologies:?
- In soft-soldering, the melting point of the solder is below a temperature of 450 °C – for example, in the electronics industry.
- In hard-soldering, or brazing, the melting point of the solder is above a temperature of 450 °C – for example, for particularly strong joints in the automotive industry or in the photovoltaic and battery sectors.