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민병로,홍준택,이대원,김재열,Min, Byeong Ro,Hong, Jun Taek,Lee, Dae Weon,Kim, Jea Youl 한국축산환경학회 2013 한국축산시설환경학회지 Vol.19 No.1
This study is to promote domestic environmentally appropriately conditions for the range 60~70 m, the development of the small and medium-sized sprayer ability measurement that can be used as a general-purpose paddy fields, orchards, and not consolidated areas. The sprayer designed and manufactured that can spraying effectively distance to within 60~70 m. Distribution of sprayed pesticides were obtained and analyzed by measuring the weight. Performance analysed using the buckets were placed horizontally 12.5 m, 70 m vertical intervals by $5m{\times}2.5m$, so total 68 buckets were placed. Total amounts of sprayed quantity was $2,000{\ell}$ and maximum spray distance was about 70 m. Reasonably sprayed region was 5 m~10 m vertically symmetrical. Showed a lot of spraying water in 5 m~40 m distance, and in 45~60 m tended to spraying water decreased slightly. Maximum spraying distance was 70 m.
Invar 36 합금 선재의 미세조직에 미치는 냉간 인발 및 열처리 공정의 영향
한승엽 ( seung Youb Han ),장선아 ( Seon Ah Jang ),은희철 ( Hee-Chul Eun ),최정훈 ( Jung-Hoon Choi ),이기락 ( Ki Rak Lee ),박환서 ( Hwan Seo Park ),안도희 ( Do-Hee Ahn ),김수영 ( Soo Young Kim ),김재열 ( Jea Youl Kim ),신상용 ( San 대한금속재료학회(구 대한금속학회) 2016 대한금속·재료학회지 Vol.54 No.10
In this study, the effect of cold drawing and heat treatment on the microstructure of Invar36 alloy wire was investigated. Invar36 alloy wire is used as a transmission line core material, and is required to have high strength. The diameter of the Invar36 alloy wire specimens were reduced from 16 mm to 4.3 mm after three cold drawing and two heat treatment processed, thereby increasing tensile strength. Specimens were taken after each of the cold drawing and heat treatment processes, and their microstructure and tensile properties were analyzed. The Invar36 alloy γ-(Fe, Ni) phase matrix before the cold drawing and heat treatment processes. After the cold drawing processes, {220} and {200} textures were mainly achieved. After the heat treatment processes, a {220} recrystallization γ-(Fe, Ni)phase was formed with fine carbides. The recrystallization γ-(Fe, Ni) phase grains had low dislocation density, so they probably accommodated a large amount of deformation during the cold drawing processes.