2018 年 53 巻 2 号 p. 74-80
Mayekawa (MYCOM) started delivering the oil-flooded screw helium compressor in 1974. This was a world's-first. Oil separation technology is very important for the steady operation of helium liquefiers. The method of measuring oil contamination is also important. Mayekawa confirmed the performance of each stage of oil separation using the Oil Check Kit® and cold trap. We also confirmed the accuracy of the Oil Check Kit® by comparing another method.