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Experimental study on the combustion characteristics of titanium alloy

티타늄 합금 폐기물의 연소 특성에 관한 실험적 연구

  • Lee, Jun-Sik (Dept. of Aeronautical & Mechanical Engineering, Changshin University) ;
  • Nam, Ki-Hun (Dept. of Fire & Disaster Prevention Engineering, Changshin University)
  • 이준식 (창신대학교 항공기계공학과) ;
  • 남기훈 (창신대학교 소방방재공학과)
  • Received : 2018.10.11
  • Accepted : 2019.03.05
  • Published : 2019.03.31

Abstract

Most titanium alloy waste with cutting oil was discarded without recycling process so that it can be caused by metal and oil fires. However, there is no fire management system and studies on the titanium or titanium alloy waste in spite of high fire risk. The purpose of this experimental study is to identify the fire risk of the titanium alloy waste with cutting oil. We collected the 120g waste which was made in the biomedical titanium alloy cutting process. The waste was burned and conducted thermal image analysis with infrared camera. The experimental results which illustrated the process, characteristics, and trends of fire are presented. Firstly, the cutting oil was burned and partially the titanium alloy waste was burned. The maximum temperature of the fire was more than $650^{\circ}C$ in some specific spots. These results means when a lot of titanium alloy waste with cutting oil was ignited, this fire could connect the titanium fire. In other words, the fire has a flammable liquid fire and combustible metal fire at the same time. The experimental study could be used fire prevention, response, and investigation of the titanium alloy waste.

Keywords

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Fig. 1 Automatic fire extinguishing systems

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Fig. 2 Experimental setup for titanium alloy waste fire

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Fig. 3 The photo of titanium alloy waste(120g)waste fire

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Fig. 4 Thermal(left) and optical(right) image of titanium alloy waste

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Fig. 5 Titanium alloy fire’temperature changes(0sec∼21sec)

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Fig. 6 Thermal((a)∼(f)) and optical((g)) images of titanium alloy waste during firing

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Fig. 7 Thermal image and temperature profile with y-axis location

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Fig. 8 The photo of burned titanium alloy waste

Table 1. Characteristic of cutting oil in this study

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Acknowledgement

Supported by : 창신대학교

References

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