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Study on the solution for the overflow of molten solder during the soldering of fuse cap through CFD analysis

전산유체해석을 통한 퓨즈캡 솔더링 시의 용융솔더 넘침 문제 해결방안 연구

  • Jeong, Nam-Gyun (Division of Mechanical Engineering, Inha Technical College)
  • 정남균 (인하공업전문대학 기계과)
  • Received : 2018.07.25
  • Accepted : 2018.10.05
  • Published : 2018.10.31

Abstract

Fuses are used to protect electric circuits or devices from excess current. Glass-tube fuses are typically used, but problems have arisen due to the mandated switch from conventional solder to lead-free solder. This study used CFD to simulate the phenomenon of molten solder being poured out of a fuse during the soldering process for a fuse cap and fuse element. In addition, a method is proposed to prevent solder from overflowing, and its effectiveness was verified based on the analysis results. The results show that a sufficient increase of the temperature inside the glass tube before soldering and gravity can help to prevent the solder from overflowing.

Keywords

Fuse;Lead free solder;Reflow soldering;Glass tube fuse;CFD

Acknowledgement

Supported by : 인하공업전문대학

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