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특허(特許)와 논문(論文)으로 본 폐전선 재활용(再活用) 기술(技術) 동향(動向)
구재관,김상수,이영호,김병걸,조영주,조봉규,Ku, Jae-Kwan,Kim, Sang-Su,Lee, Yong-Ho,Kim, Byung-Geol,Cho, Young-Ju,Cho, Bong-Gyoo 한국자원리싸이클링학회 2013 資源 리싸이클링 Vol.22 No.5
국내의 한국전력망 또는 민간 산업공장에서는 노후선로 교체 또는 부하 증가에 의한 송전용량 증대를 위한 가공전선 교체 작업으로 인하여 매년 수백 톤의 폐가공전선이 발생되고 있는 실정이다. 최근 경제적인 측면과 환경적인 측면, 효율성에 관한 측면에서 전선의 재활용 기술이 폭넓게 연구되고 있다. 본 연구에서는 폐전선의 재활용 기술에 대한 특허와 논문을 분석하였다. 분석범위는 1975년 ~ 2011년까지의 미국, 유럽연합, 일본, 한국의 등록/공개된 특허와 SCI 논문으로 제한하였다. 특허와 논문은 키워드를 사용하여 수집하였고, 기술의 정의에 의해 필터링 하였다. 특허와 논문의 동향은 연도, 국가, 기업, 기술에 따라 분석하여 나타내 보았다. There are generated the hundreds of tons of waste electric wire per year due to replace for increase transmission capacity and/or replacement of old electric wire by Korea's national power grid and/or private industrial factories. Recently, the wire recycling technologies studied extensively in terms of effieiency by of economic aspects and environment aspects. In this paper, the patents and papers for the recycling technologies of spent electric wire were collected and analyzed. The range of search was limited in the open patents of USA (US), European Union (EP), Japan (JP), Korea (KR) and SCI journals from 1975 to 2011. Patents and journals were collected using key-words searching and filtered by filtering criteria. The trends of the patents and journals were analyzed by the years, countries, companies, and technologies.
김상수,구재관,이영호,김병걸,Kim, Shang-Shu,Ku, Jae-Kwan,Lee, Young-Ho,Kim, Byung-Geol 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.5
The new recycling technology for aged Aluminum wires in overhead conductor have been carried out. We are attempting to develop remanufacturing method for them for more effective way of recycling in stead of its conventional remelting process. The weld of aged aluminum wires play a vital role in remanufacture process. The paper investigates the mechanical properties during cold welding process of aged Aluminum wire. The tensile tests and microscopic analysis results are discussed to underscore the hardening features of welded aluminum wire. Various graphs are presented accompanied by discussion about their relevance on the process.
김상수,구재관,이영호,김병걸,Kim, Shang-Shu,Ku, Jae-Kwan,Lee, Young-Ho,Kim, Byung-Geol 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.7
The new recycling technology for aged aluminum wires in overhead conductor has been carried out. The authors are attempting to develop remanufacturing method for them for more effective way of recycling in stead of its conventional remelting process. The new recycling technology for aged aluminum wire in overhead conductor was composed of four steps in different develop process, destranding process for conductor, surface cleaning process, welding process and drawing process for aluminum wire. This paper investigates the properties during recycle process of aged aluminum wire. The results of microscopic analysis and mechanical properties were discussed to underscore recycling aluminum wire. Various graphs are presented accompanied by discussion about their relevance on the process. In conclusion, we confirmed the possibility of remanufacturing technique by using new process.
김상수,구재관,이영호,김병걸,Kim, Shang-Shu,Ku, Jae-Kwan,Lee, Young-Ho,Kim, Byung-Geol 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.6
The new recycling technology for aged aluminum wires in overhead conductor have been carried out. We are attempting to develop remanufacturing method for them for more effective way of recycling in stead of its conventional remelting process. The drawing process of aged aluminum wires play a role in remanufacture process. Drawing process was performed under lubricant. The speed of drawing was between 500 m/min and 1,000 m/min. These machines have 11 or 12 dies house for breakdown of the feedstock. Material of the die is tungsten carbide and they have generally 25% reduction ratio. The paper investigates the mechanical properties during drawing process of aged aluminum wire. The results of tensile tests and microscopic analysis were discussed to underscore the hardening features of drawing aluminum wire. Various graphs are presented accompanied by discussion about their relevance on the process.
가공송전선 알루미늄 도체의 연속다단압연에 의한 조직 변화가 전기적, 기계적 특성에 미치는 영향
김종배(Jong-Bae Kim),김병걸(Byung-Gul Kim),김상수(Shang-Shu Kim),장용호,안상현(Sang-Hyun An),구재관(Jae-Kwan Ku),이영호(Young-Ho Lee),조영민(Young-Min Cho) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
The Effect of Microstructural changes on Electrical, Mechanical Property by multi-rolling for Overhead Conductors. The obtained property of Al wires will be controled by the conditions of continuous casting production process, especially, the extrusion and drawing process which is followed by the formation of cast bar, should be critical factor process in determining the performance of Al wire. Therefore, advanced countries like Italy and America have researched into the technique to improve efficiency of aluminum wire production. In this study, the authors have investigated the effects of hot multi-rolling process on mechanical, electrical property and its microstructure of Al rods.