Manufacturing techniques of armor strips excavated from Emperor Qin Shi Huang's mausoleum, China

作者：Liao Ling min; Pan Chun xu; Ma Yu

来源：Transactions of Nonferrous Metals Society of China, 2010, 20(3): 395-399.

DOI：10.1016/S1003-6326(09)60152-7

• Qin Shi Huang's mausoleum
• armor strips
• copper
• manufacturing techniques
• cold forging
• annealing

The chemical compositions and microstructures of the armor strips excavated from the Emperor Qin Shi Huang's mausoleum were examined systematically by using optical microscopy and electron microscopy. It was found that the armor strips were made of pure copper. Based on the morphology of alpha-Cu recrystal grain and copper sulphide (Cu(2)S) inclusions in the armor strips, the manufacturing techniques were proposed as follows: smelting pure copper, casting a lamellar plate, forming the cast ingots into sheets through repeated cold forging combined with annealing heat treatment, and finally cutting the sheets into filaments. Furthermore, through the deformation of copper sulphide (Cu(2)S) inclusions in the strips, the work rate during forging was evaluated and calculated to be close to 75%.

• 出版日期2010-3
• 单位武汉大学