Rather than a water bath for cooling, a pool of 20-50 kg of gallium metal serves as a large heat sink, and the power is recorded by the increase in temperature of the gallium bath that is well mixed by an electromagnetic pump
that also serves as a molten metal injector and an electrode of a pair to maintain a unique very low voltage plasma.
Known as the Einstein-Szilard electromagnetic pump
, the most successful design relied on an electromagnetic field to move a metallic liquid that then compressed the refrigerant.
The group imported French electromagnetic pump
technology, and after distributing the product, Gouwens bought the rights to the pumps and co-founded CMI Novacast Inc., Des Plaines, Ill., with his son Lee.
There is a new electromagnetic pump
, greater oil capacity and a cooler to reduce oil consumption.
SM-450 has an electromagnetic pump
that operates on Windows XP; a computerized spray-fluxing unit; computerized, automatic width and angle adjustments of the conveyor; and three preheat zones with independent control of temperature and airflow.
The electromagnetic pump
requires a much smaller solder volume, does not produce any vortex around the pump shaft and has no moving parts.
In his Silver Anniversary Lecture, "Technology, Characteristics and Applications of the Electromagnetic Pump
" (05-237), Paul Gouwens, CMI Novacast Inc., discussed how the technology of electromagnetic pumps
has changed over the last 25 years and where it is heading.