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    • 10. 发明专利
    • Aqueous coolant for di forming of laminate metal sheet and method for di forming of laminate metal sheet
    • 用于层压金属片的形成的水性冷却剂和层压金属片的形成方法
    • JP2009051964A
    • 2009-03-12
    • JP2007221046
    • 2007-08-28
    • Jfe Steel KkJfeスチール株式会社
    • OSHIMA YASUHIDETADA MASAKIIWASA HIROKIKOJIMA KATSUMI
    • C10M173/02B21D22/20B21D51/26C10M105/08C10M105/16C10M105/24C10M105/60C10M105/72C10M129/10C10M129/20C10M129/32C10M129/76C10M133/10C10N20/00C10N30/00C10N40/24C10N50/02
    • PROBLEM TO BE SOLVED: To provide an aqueous coolant for DI forming of a laminate metal sheet enabling the DI forming of the laminate metal sheet and capable of obtaining a laminate DI can having excellent durability and food safety and to provide an aqueous method for the DI forming of the laminate metal sheet.
      SOLUTION: The aqueous coolant comprises 0.03-1 mass% in total of one or more kinds of additives degrading or evaporating when heated at 200°C for 1 min in air and reducing the residual amount to ≤1% based on the content before heating and has preferably pH6-8 at 50°C. For example, one or more kinds selected from catechin, ascorbic acid, metal ascorbates, tocopherol, chlorogenic acid, thiamine, alanine, glutamine, γ-aminobutyric acid, sorbic acid and metal sorbates are preferable as the additives. When the DI forming of the laminate metal sheet is carried out by using the aqueous coolant, the DI forming is carried out by using the aqueous coolant and heat treatment is then conducted at ≥200°C temperature.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于DI形成层压金属片的水性冷却剂,其能够进行层压金属板的DI形成并且能够获得层压体DI可以具有优异的耐久性和食品安全性,并且提供水性方法 用于层压金属片的DI形成。 解决方案:含水冷却剂在空气中在200℃下加热1分钟时,总共含有0.03-1质量%的一种或多种添加剂降解或蒸发,并且基于含量将剩余量减少至≤1% 并且在50℃下优选具有pH6-8。 例如,作为添加剂,优选选自儿茶素,抗坏血酸,抗坏血酸金属,生育酚,绿原酸,硫胺素,丙氨酸,谷氨酰胺,γ-氨基丁酸,山梨酸和金属山梨酸酯中的一种以上。 当通过使用水性冷却剂进行层压金属板的DI成形时,通过使用水性冷却剂进行DI成形,然后在≥200℃的温度下进行热处理。 版权所有(C)2009,JPO&INPIT