http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
국산 벤토나이트를 사용한 시스템사의 성질에 미치는 중자사의 영향에 관한 연구
천병욱,최창옥 ( Byoung Wook Cheon,Chang Ock Choi ) 한국주조공학회 1989 한국주조공학회지 Vol.9 No.5
N/A This study has been carried out to investigate into the properties of molding sands containing various core sands, CO₂, Shell, Furan, Pep Set and Cold Box, in the system sands using domestic active bentonite. The properties of system sands with 5% bentonite and 3% moistures containing baked core sands and no-baked core sands were varied by the ratio of core sands. The system sand containing no-baked core sands had been the poor bonding force and rough grain surface than those of the baked core sands. The L. O. I of system sand containing 30% organic binders core sands were more than inorganic binders core sands. It has been found that the no-baked core sands were necessary have to reclaim for using molding sand.