• Design & Manufacturing
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• 제2권4호
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• pp.44-47
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• 2008

The magnetic polishing is the useful method to finish some machinery fabrications by using magnetic power. This method is one of the precision techniques and has an aim for clean technology in the transportation of the pure gas in the clean pipes. The magnetic abrasive polishing method is not so common in the field of machine that it is not known to widely. There are rarely researcher in this field because of non-effectiveness of magnetic abrasive. Therefore, in this paper we deals with the development of the magnetic abrasive with the use of Sr-Ferrite. In this development, abrasive grain A has been made by using the resin bond fabricated at low temperature. And magnetic abrasive powder was fabricated from the Sr-Ferrite which was crushed into 200 mesh. The XRD analysis result shows that only A abrasive and Sr-Ferrite crystal peaks were detected, explaining that resin bond was not any more to contribute chemical reaction. From SEM analysis, we found that A abrasive and Sr-Ferrite were strongly bonding with each other.

• 한국안전학회지
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• 제18권2호
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• pp.46-49
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• 2003

The magnetic polishing is the useful method to finish some machinery fabrications by using magnetic power. This method is one of the precision techniques and has m aim for clean technology in the transportation of the pure gas in the clean pipes. The magnetic abrasive polishing method is not so common in the field of machine that it is not known to widely. There are rarely researcher in this field because of non-effectiveness of magnetic abrasive. Therefore, in this paper we deals with the development of the magnetic abrasive with the use of Ba-Ferrite. In this development, abrasive grain WA has been made by using the min bond fabricated at low temperature. And magnetic abrasive powder was fabricated from the Ba-Ferrite which was crushed into 200 mesh. The XRD analysis result shows that only WA abrasive and Ba-Ferrite crystal peaks were detected, explaining that resin bond was not any more to contribute chemical reaction. From SEM analysis, we found that WA abrasive and Ba-Ferrite were strongly bonding with each other.

• 한국안전학회지
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• 제19권2호
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• pp.6-10
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• 2004

The magnetic polishing is the useful method to finish using magnetic power of magnet. This method is one of precision polishing techniques and has an aim of the clean technology using for the pure of gas and inside of the clean pipe for transportation. The magnetic abrasive polishing method is not so common for machine that it tis not spreaded widely. There are rarely researcher in this field because of non-effectiveness of magnetic abrasive. Therefore, in ths paper deals with development of the magnetic abrasive using sludge. In this development, abrasive grain WA and GC used to resin bond fabricated low temperature. And magnetic material was fabricated from the sludge which were crused into 200 mesh and average diameter ${\o}$1.2mm ball type. The XRD analysis result show that only WA and GC abrasive and sludge crystal peaks detected which explains resin bond was not any more chemical reaction. From SEM analysis it tis found that WA and GC abrasive and sludge were stron bonding with each other by bond.

• 동굴
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• 제79호
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• pp.77-81
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• 2007

In this paper deals with behavior of the magnetic abrasive using Sr-Ferrite on polishing charateristiccs in a internal finishing of staninless steel pipe a tying magnetic abrasive polishing. The magnetic polishing is the useful method to finish some machinery fabrications by using magnetic power. This method is one of the precision techniques and has in aim for clean technology in the transportation of the pure gas in the clean pipes. The magnetic abrasive polishing method is not so common in the field of machine that it is not known to widely. There are rarely researcher in this field because of non-effectiveness of magnetic abrasive. Therefore, in this paper we deals with the development of the magnetic abrasive with the use of Sr-Ferrite. In this development, abrasive grain SiC has been made by using the resin bond fabricated at low temperature. And magnetic abrasive powder was fabricated from the Sr-Ferrite which was crushed into 200 mesh. The XRD analysis result shows that only SiC abrasive and Sr-Ferrite crystal peaks were detected, explaining that resin bond was not any more to contribute chemical reaction. From MACRO analysis, we found that SiC abrasive and Sr-Ferrite were strongly bonding with each other.

• 한국안전학회지
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• 제23권5호
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• pp.43-48
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• 2008

The magnetic polishing is the useful method to finish some machinery fabrications by using magnetic power. This method is one of the precision polishing techniques and has an aim for clean technology in the transportation of the pure gas in the clean pipes. The magnetic abrasive polishing method is not so common in the field of machine that it is not known to widely. There are only few researchers in this field because of non-effectiveness of magnetic abrasive. Therefore, in this paper deals with development of the magnetic abrasive using Ba-Ferrite. In this development, abrasive grain GC and CBN has been made by using the resin bond fabricated at low temperature. And magnetic abrasive powder was fabricated from the Ba-Ferrite which was crushed into 200 mesh. The XRD analysis result shows that only GC, CBN and Ba-Ferrite crystal peaks were detected, explaining that resin bond was not any more to contribute chemical reaction. From SEM analysis, we found that GC, CBN abrasive and Ba-Ferrite were strongly bonding with each other.

• 동양고전연구
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• 제57호
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• pp.383-406
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• 2014

미암(眉巖) 유희춘(柳希春)(1513~1577)은 시를 생활의 일부로 여겼다. 그러므로 필자는 미암 유희춘의 한시에 초점을 맞추어 살펴보았다. 본고에서 논의한 사항들을 종합하여 결론으로 삼으면 다음과 같다. 미암(眉巖)은 문학을 재도적(載道的) 관점에서 이해하려고 하였다. 미암(眉巖)의 한시는 현재 300여수로 추산되는데, 필자가 파악한 작품은 285수이다. 그리고 미암(眉巖)은 진지한 자세로 작시(作詩)에 임했으며, 형식보다는 내용을 중시하였다. 고시(古詩) 율시(律詩) 절구(絶句) 가운데 絶句(특히 칠언(七言))가 가장 많으며, 오언(五言)보다 칠언(七言)을 더 선호한 것으로 보인다. 고시(古詩)의 경우, 전고(典故)가 비교적 많은 편이다. 절구(絶句)는 미암(眉巖)이 가장 능했던 시체(詩體)로, 주로 생활과 관련된 내용들이 주류를 이루고 있다. 그리고 율시(律詩)는 자기성찰이나 현실세계에 대한 자신의 심정을 표출한 내용의 시들이 많다. 미암(眉巖)의 시는 유배기와 해배 복관 이후기로 나눌 수 있다. 유배기는 학문 연마를 통한 자기수양(自己修養), 우정(友情), 애민(愛民) 등으로, 해배 복관 이후기는 충군(忠君), 지인(知人)들과의 교유, 감회(感懷), 숭조상문(崇祖尙門), 자기성찰(自己省察), 문학적 교감을 통한 부부애(夫婦愛) 등으로 나눌 수 있다. 미암(眉巖)의 시는 시제(詩題)에 음(吟) 송(送) 차운(次韻) 등이 붙은 작품이 많으며, 일상생활이나 체험사실 등과 관련된 시들이 주류를 이루고 있다. 그리고 태반은 담담하게 사실 그대로를 자연스럽게 표현하고 있다. 미암(眉巖)은 시를 생활의 일부로 여겼으며, 부인 송덕봉과 일상생활에서 겪었던 일을 시로써 수창하며 서로 문학적 교감을 하였다는 점에서 주목할 만하다.