Basic study of bronze casting in ancient East Asia

来自科学、考古和技术领域的专家就东亚青铜器的铸造工艺进行了讨论。这些工作在以后的报告中作了总结。东亚古代青铜器铅同位素比值的测定利用表面电离质谱仪对日本、中国和韩国不同遗址的约300件古代青铜器样品进行了铅同位素比值的测定.本文对福田型多足的时代鉴定和种源研究进行了讨论。用科学数据重新审视了考古学特征.日本弥生、古坟时期青铜器化学成分数据库总结了近200件青铜器样品的化学成分。青铜器铸造过程的计算机模拟用计算机模拟铸造过程，再现古代青铜器实物。使用石模铸造多宅的检查使用石模铸造多宅。铸造过程被精确地记录下来.古坟时期箭头的批量生产方法从考古学的角度，考察了箭头的批量生产方法.讨论了Dotaku的模具重新审视铸造模具的意义和特点，以再现Dotaku。

Specialists from science, archaeology and technology fields discussed each other about the casting process of East Asian bronze objects. These works were summarized in the next reports.1. Lead isotope ratio measurements of old East Asian bronze objectsAbout 300 of old bronze samples from various sites in Japan, China and Korea were measured their lead isotope ratios with surface ionization mass spectrometer.2. Reexamination of Fukuda type DotakuThe evaluation of age and the provenance study of Fukuda type Dotaku were discussed. The archaeological featuers were reexamined with scientific data.3. Data bank of chemical composition of Japanese bronze objects in Yayoi and Kofun periodsChemical composition of about 200 samples of bronze objects were summarized4. Computer simulation of bronze casting processThe casting process was simulated with computer to reproduce the ancient bronze objects5. Casting examination of Dotaku using stone moldDotaku was cast using stone mold. The process of casting was recorded precisely.6. Mass production method of arrowhead in Kofun periodFrom the archaeological aspects, the mass production method of arrowhead was examined.7. Discussion of mold of DotakuThe significance and feature of casting mold was reexamined to reproduce the Dotaku.