Cryopump Repair, Rebuilt Cryopumps, Compressor Rebuild & Maintenance Service, Refurbished Cryogenic Vacuum Equipment, Installation & Maintenance of Vacuum Systems
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Four Hour Vacuum Training with Focus on Cryopumping Systems
July 1, 2014
CryoSciences, LLC offers a four hour Vacuum Training Class, with a specific focus on cryopumping systems.
Section 1 – Basic Vacuum Technology – origins of term ‘torr’; brief history of vacuum pump evolution; introduction to gas laws; stages of vacuum – roughing pumps, high vacuum pumps.
(how oil-sealed rotary vane pumps, dry scroll pumps, dry roughing pumps – diffusion pumps, turbomolecular pumps and cryopumps operate, advantages and applications that are typical for each).
The objective is to understand the concepts of achieving various levels of vacuum, the basic physics involved and the roles of different types of pumps.
Section 2 – Helium Closed Cycle Refrigeration Systems – history of the development of ‘cryogenic’ vacuum pumps (liquid cryogens, closed cycle refrigerators); operation of closed-cycle helium refrigeration systems – how a cryopump works, how a compressor works, measuring temperature, regeneration cycles, maintenance of cryogenic systems; rebuild of vacuum side of customer cryopump – remove and replace the charcoal array.
The objective is to understand how closed cycle helium refrigeration systems operate, how each component works, maintenance required, replacement of vacuum side charcoal array.
The course is powerpoint based requiring a conference room with overhead projector plus a white board or paper easel with markers.
The course runs for approximately four hours typically starting at 09:00 with break for lunch at 11:30 hrs. recommencing for completion and cryopump vacuum side rebuild.