Archaedogical Study on the Slag Produced by Iron Smelting and Refining

炉渣是炼钢过程中产生的废渣。所以，矿渣是科学家和分析人士研究的对象。考古学家没有给予它重要的价值，如果在古代遗址挖掘中发现了矿渣。在本研究中，我们尝试用类型学分析的方法对矿渣进行考古研究。通过研究，我们可以将古代遗址中发现的矿渣分为三种类型。这个比较大，直径约20厘米，重1公斤。这个比较小，直径约10厘米，重约100克。(3)这是一种类似玻璃的渣(1)型渣是炼铁过程中产生的。(2)铁在1200℃以上高温回火过程中产生的型渣。(3)铁在800℃左右低温回火过程中产生型渣。我们认识到炉渣是研究钢铁生产的重要剩余物。

Slag is refuse matter produced in the process of making iron and steel. So, slag is an object of study of scientists and analysts. Archaeologists don't give important values to it, if slag is found in ansient sites by excavations.In this study, we try to give archaeological approach to slag by means of typological analysis.As a result of this study, we can classify slag found in ancient sites by three types.(1)This is bigger one, about 20cm in diameter and 1kg in weight.(2)This is smaller one, about 10cm in diameter and about 100g in weight.(3)this is slags like glass(1)type slag is produced in process of iron refining.(2)type slag is produced in process of iron tempering by high temperature about 1200ﾟC over.(3)type slag is produced in process of iron tempering by low temperature about 800ﾟC.We recognize that slag is the important remains to research iron and steel making.