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    Chaoyang casting teach you coated sand casting remove porosity
    作者:  來源: http://www.nnmmaa.com/gsdt/n620.html   發布時間:2014-12-20

    Bao chao foundry specializing in coated sand casting, resin coated sand casting parts, cast steel factory of precoated sand, machinery casting parts, precision casting, precision casting, hammer hammer solid drill bit, cross bit, cross centrifuge tube production and sales, the company production of coated sand casting, resin coated sand casting parts, cast steel factory of precoated sand, sold at home and abroad, welcome to inquire: 13932262815. Today chaoyang casting teach you coated sand casting remove porosity.

    You first need to strictly control the gas evolution of precoated sand. Second to choose reasonable resin and small gas evolution of resin coated, choose reasonable gas evolution of small paint, paint drying work, increase the gas flux, and increase the casting of the mold cavity of the exhaust gate design, reasonable design, selecting rational, purifying liquid metal casting speed. Also pay attention to water the riser vent exhaust passage design and parting surface, select gas evolution small binder for watering the riser.

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