CAJ | 학술논문

平板范竖式浇铸和叠铸是汉代铸钱的两种方法，由于钱币的铸造过程受到诸多因素的影响，计算机数值模拟技术可以达到改变其中的某一个参数以研究该参数对钱币铸造过程的影响。为了比较不同材质的铸型、比较平板范竖式浇铸和叠铸两种工艺在相同材质的铸型中充型性能的变化，进行平板范竖式浇铸工艺和叠铸工艺铸钱过程的计算机模拟研究。结果表明：1）在相同材质的铸型（陶范）条件下叠铸在重力铸造成形上优于平板范竖式浇铸，叠铸的成品率高于平板范竖式浇铸。2）铸型的物性参数显著影响充型结果，保温性好，预热温度高的铸型在充型上较为有利，以陶范的充型结果为最好，金属范优于石范，金属范与陶范的组合优于金属范与金属范的组合。
평판범수식요주화첩주시한대주전적량충방법，유우전폐적주조과정수도제다인소적영향，계산궤수치모의기술가이체도개변기중적모일개삼수이연구해삼수대전폐주조과정적영향。위료비교불동재질적주형、비교평판범수식요주화첩주량충공예재상동재질적주형중충형성능적변화，진행평판범수식요주공예화첩주공예주전과정적계산궤모의연구。결과표명：1）재상동재질적주형（도범）조건하첩주재중력주조성형상우우평판범수식요주，첩주적성품솔고우평판범수식요주。2）주형적물성삼수현저영향충형결과，보온성호，예열온도고적주형재충형상교위유리，이도범적충형결과위최호，금속범우우석범，금속범여도범적조합우우금속범여금속범적조합。
There were two important techniques for casting bronze coins in Han Dynasty：stack -casting and bunch casting. A number of factors can influence the casting process. By virtually changing any of these parameters, cornpurer simulation could help to analyze the effects of different factors on the casting process. In this research, the computer simulated casting processes were used to study how the mold materials influence the mold filling capacity during bunch - casting and how the processes of mold filling during stack - casting and bunch - casting differ. The results indicated that 1 ） when using the same casting mold （a clay mold）, stack- casting shows better sequential filling than bunch -casting does, and therefore ,has a higher rate of finished coins ;2 ） different molding materials, e g. , stone, metal and clay, affect the filling process greatly. Good heat preservation and a higher preheating temperature are desired properties of the mold. The clay mold is the best, and metal ones are better than the stone molds. A combination metal - clay mold is better than a metal - metal mold.