• Title, Summary, Keyword: Mold-wash Slurry

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The improvement of surface roughness of cast-iron pipe (주철관의 표면조도 개선)

  • Park, Seong-Yoo;Park, Myung-Ho;Kim, Sung-Joon
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.21 no.9
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    • pp.1491-1497
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    • 1997
  • The purpose of this research is to improve the surface roughness of cast-iron pipe porduced by the centrifugal casting. A twin-fluid atomizer of mold-wash slurry is designed for this project. New atomizer is equipped with the existing manufacturing facility to produce pipes. Cast-iron pipes (.cent.125*L3000mm) are produced and the surface roughnesses of those are analysed by UBM. The average surface roughness of new products is 6.7.mu.m while the old products of sand-resin coating method have 17.0.mu.m of average surface roughness. The surface roughness of cast-iron pipe is improved very much than before.