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    • 2. 发明申请
    • CORES ON THE BASIS OF SURFACE-TREATED SALT
    • CORES基于盐和处理的表面
    • WO2010133596A3
    • 2011-02-03
    • PCT/EP2010056819
    • 2010-05-18
    • CERAMTEC GMBHSTINGL PETERKAEFER DIETERHUDLER HARALDSCHREINER HANS-JUERGEN
    • STINGL PETERKAEFER DIETERHUDLER HARALDSCHREINER HANS-JUERGEN
    • B22C3/00B22C9/10
    • B22C3/00B22C1/14B22C9/105B29C33/52B29C45/4457
    • If specific demands are made on the surface and the contour accuracy of the cavities in cast workpieces, the surface of the cores must be particularly smooth and have a particularly precise contour. The casting material must not react with the surface of a core, must not penetrate the surface and must not erode the same. According to the invention, the surface of the cores is therefore coated in at least one partial region with a layer made of water-soluble salt or mixtures of water-soluble salts, optionally additionally mixed with additives that are entirely soluble in water, and the layer is formed in two steps, wherein in the first step a surface activation for receiving the substances to be applied takes place in at least one partial region of the surface of the cores, and in a second step the substances are applied to the predetermined surface region and said substances are bound on the surface of the salt cores.
    • 被放置在铸造腔的表面和轮廓精度工件特殊要求,芯的表面必须特别光滑和轮廓。 铸造材料不能与核心的表面反应,没有穿透表面,他们不冲刷出来。 根据本发明,因此,建议的是,芯的表面在至少与水溶性盐或水溶性盐的混合物的层的部分区域,任选地添加具有完全水溶性赋形剂混合,覆盖和形成在两个步骤中的层,由此 第一步骤中,至少在所述核心的表面的一部分区域进行表面活化,用于接收所施加的材料和所述材料在第二步骤中施加至预定表面面积和这些物质的盐芯的表面上的约束。