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铜货币在中国具有悠久的历史,占有重要的地位。在公元前约九世纪即出现青铜的称量货币。青铜铸币是中国古代的主要流通货币。中国人很早就会使用铜合金。纯铜为红色,一般称红铜或紫铜。铜锡合金为青铜,铜锌合金为黄铜,铜镍合金为白铜。中国用黄铜铸钱,约始于明代中叶,使铜币的各种综合性能达到最佳状态。清代沿袭明代的方法,也以黄铜为制钱币材。这就增大了黄铜的需求量。清代制钱的金属成份在相当长的时期内保持铜六锌四。这反映了制钱制度的稳定,即铜币币值的稳定。云南省的铅锌矿藏资源比较丰富,尤以东川府(今东川市、会泽县、巧家县)为最多。对于中国古代黄铜币材生产工艺的探讨,经过认真的实地考察和广泛研究,已取得了重要的成果:中国古代的黄铜铸币分两个阶段,即矿炼黄铜期和单质锌黄铜期,它的发展过程和冶炼工艺都不同于印度,这一研究成果已引起了国际学术界的普遍关注。
Copper has a long history in China, occupying an important position. Bronze weighing currency appeared in the ninth and ninth centuries BC. Bronze coins are the main circulating currency in ancient China. Chinese people use copper alloy very early. Pure copper is red, generally known as copper or copper. Copper-tin alloy is bronze, copper-zinc alloy is brass, copper-nickel alloy is white copper. Casting money from brass in China began around the middle of the Ming Dynasty, enabling various comprehensive performance of copper coins to reach its optimum. The Qing Dynasty followed the Ming Dynasty method, but also to brass for the money. This increases the demand for brass. The Qing Dynasty money-making metal components remained copper six zinc for a long period of time. This reflects the stability of the cash system, that is, the stability of the value of copper coins. Yunnan Province, lead-zinc mineral resources are rich, especially Dongchuan (now Dongchuan, Huize County, Qiaojia County) as the most. For the ancient Chinese brass material production technology, after careful field visits and extensive research, has made important achievements: China’s ancient brass coin in two stages, namely, the period of mineral smelting brass and elemental zinc brass Period, its development process and smelting process are different from India, the research results have attracted the widespread attention of international academia.