Paraganglioma of a Bladder with a Bladder Stone

Lee, Kyung Seop; Kim, Jung Dam; Kim, Ki Ho; Seo, Young Jin; Lee, Jong Im; Lee, Young Sil; Kim, Sung Woo

doi:10.4111/kju.2009.50.3.296

Cited by 1 publication

(1 citation statement)

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“…용범(鎔范, casting mold)은 주물 형태를 만드는 거푸집 으로 크게 석제용범과 토제용범으로 구분된다. 용범에 대 한 과학적 분석은 석제용범의 재질특성과 산지해석이 주 로 실시되었다 (Lee et al, 2005;2021b). 토제용범 분석사 례는 대규모 청동공방지인 경주 동천동유적 출토품 분석 결과가 보고된 바 있으나 거의 전무한 상황이다 (Son and Yang, 2013).…”

Section: 최근에는 주조기술 복원실험으로 문제점을 파악하고unclassified

Material Characteristics and Manufacturing Techniques Interpretation for the Casting Molds from the Silla Urban Site of Hwangnyongsa in Gyeongju, Korea

Jin¹,

Jang²,

Kim³

et al. 2023

J. Conserv. Sci

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This study investigates the material characteristics of casting molds found at the Silla urban site of Hwangnyongsa in Gyeongju to interpret manufacturing techniques of casting mold for bronze used in the Unified Silla period. The casting molds appear to be earthen molds for bronze-making, with a thick ceramic wall and are classified into inner and outer mold types. The molds show a layered structure, with a silt layer thinly applied to the earthen mold surface. This layer comes into contact with melted metal during bronze manufacturing and is located on the outside of inner molds and inside of outer molds. The paste layer exhibits fine-grained texture with a bimodal structure. Thin section analysis reveals planar voids in the paste, which were made by the carbonization of rice husks used as a temper during the firing process. The silt layer is mainly composed of very fine-grained quartz and feldspars without clay and plant tempers. It is estimated that the casting molds were made by mixing soil with tempers of minerals and rice husks, applying a silt layer to the surface of the molds, and experiencing temperatures below 1,000℃. Overall, the selection of different raw materials for each layer of the molds is connected with efficiency to ensure the permeability and thermal resistance during the casting process and easy release of the bronze object from the molds.

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Section: 최근에는 주조기술 복원실험으로 문제점을 파악하고unclassified