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An Experimental Investigation of The Metal Type Wax Casting Method Using Pottery Clay

Cho Hyung Jin 1

1강남대학교

Accredited

ABSTRACT

This study investigated the specific processes and principles of metal type wax casting method using pottery clay. (1) Matrix material: Beeswax and injection wax were useful as the material. (2) Mould material and type quality: Pottery clay was useful as the filling material. Activated carbon, oil carbon, graphite, paper fiber and water carbon, among others, were useful as the functional material. The mixture proportion was 50% for activated carbon, 5% for oil carbon and graphite, 1% for paper fiber, and 5～40% for water carbon. The quality of type was highest with 40% of water carbon and lowest with oil carbon. (3) Metal components, pouring quantity, and pouring method: Bronze with 70% copper was effective. A small quantity of about 300 grams was poured using conventional method. (4) The number of character strokes: The number of character strokes had almost no impact on the success rate of casting. (5) The pouring direction of metal fluid: The pouring direction was the most critical factor in determining the success rate of casting - putting the character face in the lateral direction and pouring metal fluid in a standing mode. (6) The main path caliber for metal fluid: The size of 4.5×5.0mm was sufficient. (7) The temperature of mould: The degree of 600℃ was sufficient enough as the burning temperature for mould. The success rate was not affected by the mould temperature when pouring metal fluid. (8) The casting success rate and contraction rate: The highest success rate was 92.0%, and the overall success rate was 45.14%. The contraction rate was 4.77%. (9) The results under the same condition: There was 6% variance in the result under the same moulding condition. (10) The characteristics of type strokes: All the distinctive characteristics in 「Jikji」 were observed here. Therefore, it is highly likely that the wax casting method taken by this experiment is the same method that was actually used for Jikji type.

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