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ECD Thermosphere Collective IQ

The ECD Thermosphere Collective IQ is a collaboration of shared intelligence with Thermal Measurment as the primary focus.


ECD M.O.L.E.® Thermal Profiling - Thermocouple Attachment

Term: Thermocouple Attachment
3 post(s) found

Thermocouple Attachment in Vapor Phase Soldering

Posted on Feb 08, 2011

Attaching thermocouples in Vapor Phase Soldering (VPS) presents a potential problem that’s often overlooked. To illustrate this potential problem, let’s look at how VPS works. All the work needed to heat the components and solder joints to the melting temperature of the solder take place in the very thin “condensate” layer of liquefied vapor phase fluid. This 0.2 mm layer is very much like the layer of water that forms on a cold drink on a humid summer day. (See figure 1.) The vaporized fluid (cloud) is at or very near the boiling temperature of the fluid, which is typically 200ºC to 240ºC, depending on the fluid you choose to use.
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