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    • 7. 发明专利
    • Method for manufacturing inorganic plate by papermaking process
    • 通过造纸工艺制造无机板的方法
    • JP2009226906A
    • 2009-10-08
    • JP2008078693
    • 2008-03-25
    • A & A Material Corp株式会社エーアンドエーマテリアル
    • IWANAGA TOMOKIOWADA AKIRA
    • B28B1/42C04B14/28C04B14/38C04B16/02C04B16/06C04B18/14C04B22/06C04B22/08C04B28/02
    • C04B28/182C04B2111/00612Y02W30/94Y02W30/97C04B14/38C04B16/06C04B18/146C04B18/24C04B20/0076C04B40/0071
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a thin inorganic plate by a papermaking process which shows small deflection due to its own weight in spite of thinness, and good handleability in transportation and application leading to easy work. SOLUTION: The manufacturing method of the thin inorganic plate by the papermaking process comprises a step of obtaining slurry by wet-mixing a formulation comprising 20-60 mass% hydratable raw material for forming a matrix, 3-11 mass% natural fiber having a degree of filtrated water in a range of 150-450 ml according to the Canadian standard freeness and/or 0.5-5 mass% inorganic fiber (excluding asbestos) and/or synthetic fiber having a fiber length in a range of 6.0-0.2 mm and a fiber diameter in a range of 20-50 μm (provided that the total of the natural fiber and inorganic fiber and/or synthetic fiber is 3.5-12 mass%), 10-50 mass% calcium silicate hydrate having an average particle size in a range of 30-100 μm and obtained in advance by hydrothermal synthesis of a calcareous material and a siliceous material, 1-50 mass% inorganic filler and 1-20 mass% silica fume; a step of obtaining a green plate by papermaking process of the obtained slurry; and a step of dehydrating the green plate by pressurization with the holding pressure exceeding 30 N/mm 2 up to 40 N/mm 2 and ageing to harden it to obtain a hardened body with a thickness of 2-4 mm and apparent density of 1.2-1.5 g/cm 3 . COPYRIGHT: (C)2010,JPO&INPIT
    • 解决问题:提供一种通过造纸方法制造薄无机板的方法,该方法由于其自重而显示小的偏转,尽管薄而且运输和应用中的良好的操作性导致易于加工。 解决方案:通过造纸方法制造薄无机板的方法包括通过湿式混合包含20-60质量%可水合原料的制剂以形成基质,3-11质量%天然纤维获得浆料的步骤 根据加拿大标准游离度和/或0.5-5质量%的无机纤维(不包括石棉)和/或纤维长度在6.0-0.2范围内的合成纤维,具有150-450ml范围内的过滤水量 mm,纤维直径为20-50μm(假定天然纤维和无机纤维​​和/或合成纤维的总量为3.5-12质量%),10-50质量%的具有平均粒子的硅酸钙水合物 尺寸在30-100μm范围内,预先通过钙热材料和硅质材料,1-50质量%无机填料和1-20质量%硅粉的水热合成获得; 通过所得浆料的造纸工艺获得绿板的步骤; 以及通过加压保持压力超过30N / mm 2 达40N / mm 2 而使生坯板脱水的步骤,并老化以使其硬化,得到硬化 身体厚度为2-4mm,表观密度为1.2-1.5g / cm 3。 版权所有(C)2010,JPO&INPIT