The casting technique is to inject molten metal into the mold and then cool them to produce finished metal products. The feature of this technique is that it easy to mass-produce complex shapes compared to welding because of it is easy to process. The...
The casting technique is to inject molten metal into the mold and then cool them to produce finished metal products. The feature of this technique is that it easy to mass-produce complex shapes compared to welding because of it is easy to process. The casting technique is divided by porcelain clay casting, sand mold casting, and beeswax casting, and mainly five metal materials are utilized, which are gold, silver, copper, tin, and iron. The difference between these casting techniques comes from the environmental factors and the utility of the technology.
Being a crucial part of culture and industry, iron has been a foundation for the civilization development. Korean casting technique has been utilized in various ways since it was generated during the Bronze Age. Master craftsman of casting technique were called ‘Sangcheoljang’ (zinc master) during the Korean dynasty and ‘Jujang’ or ‘Jucheoljang’ (master of tempering iron) during the Joseon Dynasty. The master craftsmen were managed by the government.
Korea has preserved and fostered numerous traditional craft techniques that are disappearing from modern society, with intangible cultural property designation system, and seven people are designated and recognized in six categories for intangible cultural assets of national and provincial related to casting technique. In this paper, we have studied about the process of making the cast iron pot and the Jeju Special Self-Governing Province Intangible Cultural Heritage No.7, the Deoksuri Bulmi-gongye (Bellows Craft) and the Gyeonggi Province Intangible Cultural Heritage No.45, the Casting Craftsman (Anseong-jumul).
‘Bulmi-gongye’ and ‘Anseong-jumul’ each uses volcanic soil and moulding sand respectively to make a mould. Both methods produce cast iron pots using iron mold melted with a traditional furnace. The summarized production process is as follows: material preparation→mould production→melting of iron→pouring iron mold→finishing work. The process is technically similar to shaping a mould using ‘dorae’ (an iron band) in terms of functions of the used tools and materials. However, there are some differences such as mould and furnace compositions and reutilization of a mould. Although the process of production of casting pot is partly done by machine unlike the past, it is still not so different from traditional crafting method. Therefore, understanding their work process will be helpful to understand pre-modern iron making methods.
While Bulmi-gongye and Anseong-jumul have been transmitting the clay and sand mould casting methods with thier distinctive ways, both are having difficulty in securing transmitters and expanding the cast iron pot market. It is necessary to investigate and record the status of the tradition of these people, and to worry about activation.