수용성 절삭유의 부패방지를 위한 온도와 초음파 가진의 영향에 관한 연구
A Study on the Effect of Temperature and Ultrasonic Vibrations on the Sterilization of Water-soluble Cutting Fluids
노태민(서울과학기술대학교); Axel Lefebure(서울과학기술대학교); 김민욱(서울과학기술대학교); 박동혁(서울과학기술대학교); 최지섭(서울과학기술대학교); 신대견(서울과학기술대학교); 김태호(서울과학기술대학교); 유민혁(서울과학기술대학교); 고병호(서울과학기술대학교); 신주혜(서울과학기술대학교); 이창수(한성 GT); 이득귀(한성 GT); 박영창(한성 GT); 허진(한성 GT); 권형진(한성 GT); 심동하(서울과학기술대학교)
31권 2호, 101~107쪽
초록
This study analyzes the ineffectiveness of ultrasonic treatment for used cutting fluid sterilization. The microorganism population in a water-soluble cutting fluid sample was observed while applying a 40-kHz ultrasound with a power density level of 0.27 and 0.37 W/cm², respectively. The ultrasonic treatment was accompanied by a temperature rise due to the heating effect of cavitation or ultrasonic components. It was observed that the population does not vary below ~45℃, and drops rapidly as the temperature rises. This phenomenon is further investigated using a heater to provide the heating effect. The results showed that the population drops faster at a higher temperature; and there was no significant difference in the population pattern between the ultrasonic and heat treatments at a constant temperature of ~50℃. The overall results showed that ultrasonic treatment does not reduce the microorganism population in the cutting fluid, where temperature is a dominant factor.
Abstract
This study analyzes the ineffectiveness of ultrasonic treatment for used cutting fluid sterilization. The microorganism population in a water-soluble cutting fluid sample was observed while applying a 40-kHz ultrasound with a power density level of 0.27 and 0.37 W/cm², respectively. The ultrasonic treatment was accompanied by a temperature rise due to the heating effect of cavitation or ultrasonic components. It was observed that the population does not vary below ~45℃, and drops rapidly as the temperature rises. This phenomenon is further investigated using a heater to provide the heating effect. The results showed that the population drops faster at a higher temperature; and there was no significant difference in the population pattern between the ultrasonic and heat treatments at a constant temperature of ~50℃. The overall results showed that ultrasonic treatment does not reduce the microorganism population in the cutting fluid, where temperature is a dominant factor.
- 발행기관:
- 한국생산제조학회
- 분류:
- 기계공학