Journal of Welding and Joining

  • 제16권5호
  • /
  • Pages.93-99
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  • 1998
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
권호 표지

FCW의 가스 발생제가 스패터링에 미치는 영향

Effects of gas formers of flux cored wire on spattering

  • 발행 : 1998.10.01
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초록

Effects of gas formers of MgCO$_3$, CaCO$_3$ and Li$_2$CO$_3$ on the spattering phenomena were investigated for non-shielded flux cored arc welding. Spattering phenomena were pictured using high speed camera as a speed of 3000 frames per sec. As experimental results, spattering modes were classified into 4 types. The modes were spattering by arc force, gas explosion, short circuit and pore escape. The amount of spatters by arc force was 30%, gas blowing force was 40%, short circuit 10%, pore escape was 10% and others were 10%. When Li$_2$CO$_3$ was added, the amount of spatters was largest, and it decreased in the order of CaCO$_3$ and MgCO$_3$.

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참고문헌

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