Lead-free soldering demands temperatures elevated by 30K. To avoid problems connected with excessive temperatures from above, Martin’s underheater Hot-Beam-03 can be applied. This instant quartz heater can quickly warm up the assembly within the limits to approximately 130°C. As a common lead-free melting point of 217°C applies, a solder-joint temperature of 230°C is required. The highest temperatures permitted for components however range between 240 and 260°C. But a simple increase of the iron temperature by 30 to 50K would be risky. To avoid problems, the underheater takes over half of the thermal effort from below. Together with the combination of a lower soldering iron temperature, this reportedly ensures gentler treatment of the assemblies. The heating process remains challenging. The program-controlled IR heater employs a self-learning process. A precisely defined and constant thermal mass is maintained by fine sensor control. It is now possible to use a soldering iron with a process-friendly temperature to work precisely, without rejects, significantly safer and with fewer risks, and solder tips will also last longer. The compact unit offers an active surface of 10 x 13cm and a power output of 500W. A practical board holder is also available – important and thoughtful details for manual lead-free soldering and rework.
EPP EUROPE 443
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