• Title/Summary/Keyword: Sprayed

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Pigment Distribution Analysis of High Speed Fan for Dusting Large Pasture at Livestock Farms (축산농가를 위한 대규모 목초지 방제용 고속 팬의 실험을 통한 색소 분포에 따른 분석)

  • Kim, C.S.;Min, B.R.;Seo, K.W.;Lee, D.W.
    • Journal of Animal Environmental Science
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    • v.15 no.2
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    • pp.99-106
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    • 2009

  • We conducted a comparison experiment of our wide-area spraying high speed fan with a fan which was developed by Japan MARUYAMA Inc. have been much recognized for it's history and skills in a field of spraying machine. In result, MARUYAMA Inc. fan sprayed up to 120 m and, on the other hand, wide-area spraying high speed fan of our own making was able to spray up to more than 160 m. Wide-area spraying machine have been supplied to domestic demands by importing from Japan, but it is determined to be possible that home products will occupy market for it's ability, price and A/S environment in future. The main research results are below. Some plastic cups which are in the open market are used for our experiment. After distributing 90 cups in a range of 10m vertically with localizing 5 cups horizontally and 18 cups vertically, spraying machine was moved and finally we make distribution charts by estimating the sprayed amounts on each cup. Vertical distance was set up to 5m and we calculated average values by using sprayed amount and data of 4 observers. In result our fan showed much sprayed amounts than MARUYAMA Inc. all over the field except situations of vehicle departing and stopping.

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The Microstructure of Fiber Reinforced Plasma Sprayed Coatings (플라즈마 용사법에 의한 섬유강화 코팅의 미세구조)

  • 이정혁
    • Journal of Welding and Joining
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    • v.20 no.4
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    • pp.451-458
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    • 2002

  • 플라즈마 용사법에 의한 섬유강화 복합 소재를 개발하면서 독특한 미세구조가 발견되었다. 이러한 형상은 코팅의 물리적 특성과 직접적으로 관련이 있다고 사료된다 섬유강화 코팅의 구조를 밝히기 위해 고배율 전자현미경이 사용되었으며 분석을 통해 일반적 용사코팅 의 미세구조가 내부에 투입된 강화 섬유(FIBER 또는 WHISKER)에 의해 변형되며 열적으로 anisotropic한 상태로 되었음을 보여주었다.

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