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A sintered heat pipe can also be known as a powder wick heat pipe. During the manufacturing process a solid mandrel is installed in the centre of the pipe leaving a gap between the mandrel and the inside wall of the pipe. Copper powder is poured into the gap between the pipe and the mandrel and vibrated to ensure that it is sufficiently packed.

The parts are then placed into a sintering oven or onto a belt furnace, once up to temperature, the copper powder will stick to the inside wall of the pipe and each particle bonds to the particle?s that it is touching, this forms thousands of internal pockets similar to a sponge. The mandrel is removed leaving the centre of the pipe a void. A small amount of working fluid is inserted that soaks into the thousands of internal pockets, a vacuum is pulled and the pipe is sealed.

Because of the small pocket sizes the capillary pumping force is superior to that of grooved or screen mesh and is capable of returning the working fluid against gravity in a vertical orientation.

A sintered wick heat pipe can be used in applications with radial heat fluxes up to 250 W/cm2.

Latest News

PCIM Europe Exhibition 2018

Columbia-Staver are pleased to announce that we will again be exhibiting at the PCIM Europe exhibition in Nuremberg, Germany. We will be at stand 226 in Hall 7.

Full details about the three day exhibition from the 5th to 7th of June 2018 can be found at

https://www.mesago.de/en/PCIM...

PCIM Europe Exhibition 2018

Continuous Investment – Helium Leak Detector

Columbia-Staver Ltd has recently invested into a Helium Leak Detector to boost its liquid cold plate and advanced manufacturing test capabilities. The newly acquired Agilent PR02 leak detector was chosen because it offers leak detection capabilities with a sensitivity down to 5x10-13 Pa m3Continuous Investment – Helium Leak Detector

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