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An Experimental Investigation of the Improved Metal Type Wax Casting Method

Cho Hyung Jin 1

1강남대학교

Accredited

ABSTRACT

This study investigated the efficient and specific procedures and principles of metal type wax casting method with an improved experiment. (1) The matrix material: Beeswax and injection wax were useful as the material. (2) The mould material: Yellow earth was useful as the filling material. Paper fiber, rice straw, activated carbon, oil carbon, graphite and water carbon, among others, were useful as the functional material. The mixture proportion was 0.5∼2% for paper fiber, 1% for rice straw, 5∼18% for activated carbon, 5% for oil carbon, 5 % for graphite and 5∼5.5% for water carbon, respectively. In particular, paper fiber played a critical role in preventing cracks in the mould, and rice straw was also found to have the similar function. (3) The metal components, pouring quantity, and pouring method: Bronze was effective as the metal component. A small quantity of approximately 300∼350 grams was poured using conventional method. (4) The number of character strokes: The fewer the number of character strokes, the higher the success rate was. However, the variance of success rate was only 15.62%. (5) The pouring direction of metal fluid: When putting the character face in the lateral direction and pouring metal fluid in a standing manner, it resulted in 74.0% success rate. (6) The main path caliber for metal fluid: The size of 4.5×5.0㎜ was sufficient. The length of 190㎜ was effective. In particular, the length of the main path caliber was the critical factor in the success rate by increasing the pouring pressure of metal fluid. (7) The temperature of mould: The temperature of 600℃ was sufficient as the burning temperature for mould. The mould temperature when pouring metal fluid had little effect on the success rate. (8) The casting success rate and contraction rate: The highest success rate was 100%, and the overall success rate was 74.0%. The contraction rate was 2.69%. (9) The characteristics and performance of type strokes: All the distinctive characteristics in Jikji were observed here. The overall type performance was very high not only in the measurable aspects, but also in the similarity of the writing type which cannot be quantified. Therefore, it is highly probable that the wax casting method employed by this experiment is the replication of the method actually used to cast Jikji type.

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* References for papers published after 2023 are currently being built.

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