P18 水中でのオゾンマイクロバブル-超音波併用による金属板の精密洗浄(第2報)(ポスター発表)

抄録

Precision cleanings of stainless steel plates covered with press working oil by using ozone microbubble combined with ultrasound(28KHz, 45KHz or 100KHz, 100W) were investigated in water. Oil removal efficiencies of the sample plates were investigated by using a microscope and a waterdrop contact angle measurering apparatus. From experimental results, effective removals of press working oil from the surfaces of the sample plates by the investigated cleaning mehod were shown to be achieved under the following conditions: ultrasound, 45kHz(100W); ozone concentration, 1.15 mg/L; washing time, 15 min.