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Study on the Manufacturing techniques & Conservation of Iron Pot from Cheonmachong Ancient Tomb

천마총 출토 철부(鐵釜)의 제작기법 및 보존처리

  • Lee, Seung Ryul (Conservation laboratory, Gyeongju National Museum) ;
  • Shin, Yong Bi (Conservation laboratory, Gyeongju National Museum) ;
  • Jung, Won Seob (Department of Material Engineering, Pusan National University)
  • 이승렬 (국립경주박물관 보존과학실) ;
  • 신용비 (국립경주박물관 보존과학실) ;
  • 정원섭 (부산대학교 재료공학과)
  • Received : 2014.07.15
  • Accepted : 2014.08.18
  • Published : 2014.09.20

Abstract

It's shown how to proceed the study on Manufacturing techniques & Conservation to the Iron Pot from Cheonmachong Ancient Tomb(the 155th Tomb in Hwangnam-dong). In order to investigate manufacturing techniques of the Iron Pot, some parts of the relic were gathered. After mounting, polishing and etching on the relic, analyzing the metal microstructure was conducted. Also it's conducted a SEM-EDS analysis on the nonmetallic inclusion. White iron structure was observed in the metallurgical structure inspection, SEM-EDS analysis. It seems to be dried slowly at room temperature after casting, doesn't look as particular heat treatment to improve brittleness. It is estimated that it's as the handle seam side were verified about 3cm inch wide, 1.5 thick in center of body, so 2 separate half-completed products was cast with width-type mould. The manufacturing techniques Using white cast iron structure, width-type mould are observable to the Iron Pot excavated from Sikrichong Ancient Tomb & Hwangnamdaechong grand Ancient Tomb around those were constructed the same time. It's able to recognize that it's almost identical manufacturing techniques at that time. Conservation is generically following those are survey of pretreatment, foreign material removal, stabilization, restoration and color matching in the order. cleaning & drying were added to the process as occasion demands. The strengthening treatment were difficult with artifact's volume, low concentration Paraloid NAD-10 solution was spread two or three times with a brush, surface hardening also came up with 15wt% Paraloid NAD-10 solution after the conservation was complete. There were connection & restoration for the restoration to the damage after modeling forms that it's similar to damaged parts by using the Fiber Reinforced Plastic resins(POLYCOAT FH-245, mold laminated type). Throughout this research, capitalizing on accumulations of measurements about the production technique of Iron Pot in the time of the fifth and 6th centuries is no less important than the Iron artifact's conservation for a better study in the future.

천마총(황남동 제 155호 고분)에서 출토된 철부(鐵釜)의 제작기법 및 보존처리에 대하여 연구하고자 하였다. 철부의 제작기법을 조사하기 위하여 유물 중 일부를 채취하여 마운팅 후 연마하고, etching을 실시하여 금속조직을 관찰하였고, 비금속개재물부분은 SEM-EDS로 분석을 실시하였다. 금속학적 조직검사와 SEM-EDS분석 결과 철 솥은 백주철 조직이 관찰되었고, 주조 후 상온에서 서서히 건조시킨 것으로 보이며, 취성을 개선하기 위해 별다른 열처리를 시도한 흔적은 보이지 않는다. 몸통 중심부의 폭3cm 두께 1.5cm 전이 확인됨에 따라서 가로식 거푸집을 활용한 이분제작기법을 사용하여 주조한 것으로 추정된다. 이처럼 백주철 조직과 가로식 거푸집을 활용한 제작기법은 비슷한 시기인 식리총과 황남대총에서 출토 된 철 솥에서도 나타나는 것으로, 당시 주조품의 생산기술이 동일하였음을 알 수 있었다. 보존처리는 크게 처리전조사, 이물질제거, 탈염처리, 강화처리, 접합 복원, 색맞춤의 순서로 진행하였으며, 처리과정 중 필요에 따라 세척 및 건조를 실시하였다. 강화처리는 유물의 크기로 인하여 진공함침에 어려움이 있었으므로, 저농도의 Paraloid NAD-10을 2-3차례 붓으로 도포하였고, 보존처리가 완료된 후 15wt.% Paraloid NAD-10용액으로 표면을 재강화하였다. 파손부위의 복원은 섬유강화플라스틱 수지(POLYCOAT FH-245,몰드 적층용)를 사용하여 파손 부위와 유사한 형태의 모형을 만든 후 접합하여 복원하였다. 이번 연구를 통하여 철제유물의 보존처리뿐만 아니라 5-6세기 주조 철솥의 제작기법에 대한 자료를 축적함으로 향후 보다 나은 연구를 위한 발판으로 활용되었으면 한다.

Keywords

References

  1. Amy Davidson., 2009, Why not 5minute Epoxy, American Museum of Natural History.
  2. Choi, J.S., 2012, Based on the tin foil casting method in the Beakje pottery replication, major of Cultural properties Graduate School of Culture of Cluture and art Dongguk University, 19-21. (in Korean)
  3. Chung, K.Y. and Kim, S.B., 1999, Study on the Manufacturing techniques of Gyeongju Ancient Iron. The Kyong ju mun hwa youn gu, 2, 1-24. (in Korean)
  4. Chong, T.C., Yun. Y.H., and Lee, G.R., 2003, Technology of cast iron pot, National Science Museum, 3-4, 52-53. (in Korean)
  5. Chong, T.C. and Yun. Y.H., 2005, Cast iron pot, Asias comparative folklore society, Vol.28, 13-54. (in Korean)
  6. Kang, B.K., 2005, A study on Cast bronze pot from unified shilla dynasty, Geumganggogo Vol.2. (in Korean with English abstract)
  7. Kim, B.S., 1145, Samguksagi, Book 39, jobji 8(Part). (in korean with Chinese)
  8. Kim, C.S. and Hwang, S.D., 2005, Reproduction of the relics using Liquid Silicone Rubber, Journal of Conservation Science, Vol.17, 97-98. (in Korean)
  9. Moon, S.Y., Jeon, I.H. and Yu, H., 2003, Scientific Analysis and conservation Treatment of the Kettle Excavated from Hwangnam-dong, Gyeongju, Conservation Science in Museum, Vol.4, 23. (in Korean)
  10. National Reserch Institute of Cultural Heritage, 2003, Dictionary of Korean archaeology, Hakyoun, Korea, 1045-1047. (in Korean)
  11. Park, I.M., Jung, W.S., and Choi, N.Y., 1999, Foundations and practical of casting iron, Sejongbooks, 2-34, 211-228. (in Korean)
  12. Park, J.S., and Jung, Y.D., 2004, Iron Technology of Silla as Observed in the Microstructure of a Sword and a Spear Excavated from the Hwangnam Great Tomb, Korean Journal of Metals and Materials, Vol.42, No.3, 307. (in Korean)
  13. Sul, J.W., 2013, Ancient cast iron pots for Research on production technology, Department of Culutral Anthropology Graduate School Yeungnam University, 39-41. (in Korean with English abstract)
  14. Seo, Y.G., Choseon Dynasty of Korea, Limwongyeongjeji, Damyoungji(Chapter), Chuiryupaengyakjegi(Part). (in Chinese)
  15. The cultural properties management bureau, 1973, Excavation report of Cheonmachong, 33-35, 153-154. (in Korean)
  16. Yeongnam Institute of Cultural Properties, 2001, The Ancient site at Sara-ri, Gyeongju, Vol.2. (in Korean)