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    • 10. 发明专利
    • Mold release agent for die casting, method for imparting mold releasability to mold for die casting and method for casting die-cast product
    • 用于模具铸造的模具发泡剂,用于将模具可塑性转化成用于模铸的模具和用于铸造铸造产品的方法
    • JP2009226459A
    • 2009-10-08
    • JP2008076403
    • 2008-03-24
    • Naigai Kagaku Seihin Kk内外化学製品株式会社
    • MARUKAME KAZUOYOSHIDA MASAKIAKIYAMA SATOSHI
    • B22D17/20B22C3/00B22C9/06
    • PROBLEM TO BE SOLVED: To provide a mold release agent for die casting which can suppress the generation of the roughening of a cast skin in a die-cast product, and to provide a mold releasing method and a casting method.
      SOLUTION: Disclosed is a mold release agent for die casting composed of a colloidal aqueous solution obtained by dispersing the nanoparticles of a metal oxide other than silicon dioxide into water without adding a dispersant. Also disclosed is a method for imparting mold releasability to a mold for die casting characterized in that the molding face of a mold for die casting composed of a colloidal aqueous solution obtained by dispersing the nanoparticles of a metal oxide other than silicon dioxide into water without adding a dispersant, and next, the water is evaporated. Also disclosed is a method for producing a die-cast product characterized in that a molten metal is injected into the mold for die casting with the molding face coated with a colloidal aqueous solution obtained by dispersing the nanoparticles of a metal oxide other than silicon dioxide into water without the addition of a dispersant, and from which the water is evaporated.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种压铸用脱模剂,其能够抑制压铸产品中的铸皮的粗糙化的产生,并且提供脱模方法和铸造方法。 解决方案:公开了一种用于压铸的脱模剂,其由通过将除了二氧化硅之外的金属氧化物的纳米颗粒分散在水中而不添加分散剂而获得的胶体水溶液组成。 还公开了一种用于将模具剥离性赋予用于压铸的模具的方法,其特征在于,通过将除了二氧化硅以外的金属氧化物的纳米颗粒分散在水中而获得的胶体水溶液形成的压铸用模具的成型面不添加 分散剂,然后水蒸发。 还公开了一种用于制造压铸产品的方法,其特征在于,将熔融金属注入到用于压铸的模具中,其中模制面涂覆有通过将除了二氧化硅之外的金属氧化物的纳米颗粒分散在其中而获得的胶体水溶液 水,而不添加分散剂,水从其中蒸发。 版权所有(C)2010,JPO&INPIT