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고대림(Daelim Ko),김진무(Jinmoo Kim),문종윤(Jongyun Moon),서호철(Hoehoel Suh),김규준(Kyujun Kim) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, the exhaust system of automobile has been changing materials with stainless steel sheets for quality improvement and life-cycle prolongation. But there are various problems occured in forming stainless steel sheets such as scratch, local fracture, earing. It is very important to improve the formability of stainless steel sheets. In this study, it has performed FLD(forming limit diagram) through an experiment to check out the formability of STS 436 sheets and the forming analysis about resonator case in exhaust system parts.
Microflute 골판지 제조시 골판지원지 특성분석 및 평가
조용민,송주완,김진무 한국공업화학회 2003 응용화학 Vol.7 No.2
This study carried out the property of linerboards and defining the condition of production by describe the effect of temperature, moisture and rentention time in corrugator for making the MICROFLUTE(M/F) corrugated board with linerboards which is commercial in national and international market. The most efficient condition was 160℃ of temperature, 30% of moisture content in linerboards and 60 second of retention time and draw factor of linerboards increased with increasing of draw factor of the most efficient microflute(F-flute) condition and temperature. Also draw factor of linderboards was more excellent in lower basis weight of linerboard and draw factor of commercial kraft) board(78-98g/㎡) was better than nationally commercial linerboards(S 120g/㎡), B 150g/㎡). In M/F corrugating, the best result of length, thickness, basis weight and draw factor was gained in CD direction of kraft paper with 75g/㎡ of basis weight with having regard to wire/felt-side, MD/CD directions. basis weight of commercial kraft.