A number of plating companies have been exposed to the risk of fire due to unexpected temperature increasing of water or other reasons in a plating bath. Since the companies are not able to forecast the unexpected temperature increasing of plating bath and most of raw materials in the bath have low ignition temperature, it is easy to be exposed to the risk of fire. Thus, in previous study, we tried to monitor and notice the dangerous change of temperature of water immediately to prevent the risk of fire from plating process. However, unfortunately previous studies were not able to shut out the fundamental cause of fire since bath temperature sensor can detect air temperature when the level sensor was malfunctioned. In this paper we developed the Teflon heater which contains a built in temperature sensor and improved plating equipment system. Teflon heater is improved using Pt 100Ω sensor which can detect until 600°C . When the bath temperature sensor detects over 60°C or the Teflon heater sensor detects over 240°C they temporarily shut down the heater to control temperature. Also relay completely shuts down main power when detects instant temperature is detected over 5% of 240°C by the heater sensor to prevent teflon melting down and fire spreads. Developed plating equipment system can monitor a real time temperature in the teflon tube and bath water. Therefore we think the proposed plating equipment can eliminate the possibility of fire in plating processes fundamentally.

Abstract
 1. 서 론
  1.1 연구 배경
  1.2 선행 연구
  1.3 선행 연구의 한계점
 2. 본 론
  2.1 개선된 장비의 구성
  2.2 화재 예방 실험
 3. 결 론
 4. References

• 김성재(인천대학교 산업경영공학과) | Sung-Jae Kim
• 김성곤(인천대학교 산업경영공학과) | Sung-Gon Kim
• 유우식(인천대학교 산업경영공학과) | Woo-Sik Yoo Corresponding Author