北宋和南宋青铜钱币对比分析研究

宋代是我国钱币的一个大发展时期,宋代钱币在我国钱币史上占有极其重要的地位.为了解南、北宋钱币的成分、显微结构的差异对铸币保存状况的影响,通过显微镜观察、合金成分分析、显微结构分析,对南宋和北宋各21枚钱币的保存状况进行了对比分析研究,以了解这42枚钱币的锈蚀状况、锈蚀原因,以及成分、显微结构的差异对铸币保存状况的影响.同时在分析研究的过程中,对北宋、南宋钱币的合金成分、铸造工艺进行了对比研究.研究结果表明,南宋钱币的保存状况比北宋的差一些,合金成分及显微结构的差异,是导致保存状况不同的重要原因.这些钱币主要是由铜、锡、铅铸造而成,分析结果进一步证实北宋钱币合金成分比较稳定,成分配比比较科学.而南宋成分数据比较分散,早期铜、锡含量较高,铅含量较低,晚期铜、锡含量较低,铅含量明显增高,合金品质大大降低.本研究可为了解当时的科学技术、社会经济形态进一步提供基本信息.

Research on the coins of North and South Song Dynasty

Song Dynasty was a developing period for coins in Chinese history,and the coins of song dynasty are of great importance in coinage history.By analysis and comparison of coins from North and South Dynasty,alloy compositions and mintage techniques were studies,which gives some information about scientific techniques and social economic forms them.In the mean time the analytical data also provide basis for conservation.X ray photography,XRD,XRF,metallography were used for analyzing 21 coins of North Song and 21 coins of South Song Dynasty.The results show that all these coins are mainly coined with Cu,Sn,Pb.The coin compositions of North Song are more stable and rational,whereas those of South Song are dispersive containing high Pb content.The alloy qualities of South Song coins are not as good as those of North Song and in poorer conservation state.