Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)
- Volume 8 Issue 1
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- Pages.76-87
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- 1998
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- 2384-132X(pISSN)
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- 2289-0564(eISSN)
A Study on Control of Fume for Various Parameters in CO2 Welding
CO2 용접에서 용접변수의 변화에 따른 용접흄 제어방법에 관한 연구
- Oh, Kwang-Joong (Dep. of Env. Eng. Pusan National University) ;
- Kim, Hyun-Soo (Dep. of Env. Eng. Pusan National University) ;
- Shon, Byung-Hyun (Dep. of Env. Eng. Hanseo University) ;
- Jee, Hae-Sung (Doosan Env. Management Center)
- Published : 1998.05.29
Abstract
The concentration of welding fume was measured by 221 welders themselves in chassis frame workplace of the manufactory from February, 1, 1996 to May, 31, 1997. Welding parameters were the welding current and the distance between helmet and arc. Those two optimum conditions were proposed by excess probability analysis using logistic regression, so the best position in the workplace was proposed considering two factors to control the welding fume. The results are as followings; 1) The excess proability of welding fume TLV was over 99% in above 260 Amperes of welding current and also in below 30cm of distanced between helmet and arc. 2) The equation from logistic regression analysis using SPSS/PC+5.02 had the welding current as a independent variable and the excess of welding fume TLV as a dependent variable (p<0.05). Logit(welding fume TLV) = 0.1296