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    • 7. 发明授权
    • Process for ion exchange on glass or glass ceramic
    • 在玻璃或玻璃陶瓷上进行离子交换的方法
    • US5127931A
    • 1992-07-07
    • US725894
    • 1991-07-01
    • Werner KieferErich Rodek
    • Werner KieferErich Rodek
    • C03C21/00
    • C03C21/008
    • For ion exchange at the surface of glass or glass ceramic, the ion exchange is carried out by means of a solid layer containing mainly one or more salts which do not melt at the exchange temperature and contain mono- or divalent cations. The layer can be applied to the glass as a dispersion in water or as an organic dispersion medium. Preferably, its thickness is 0.02 to 2 mm and the salts have a particle size of less than 60 .mu.m. Despite the solid reaction, the ion exchange proceeds at a surprisingly rapid rate and leads to products having highly reproducible properties. Corrosive attack of the glass surface does not take place.
    • 为了在玻璃或玻璃陶瓷的表面进行离子交换,离子交换通过主要含有一种或多种盐的固体层进行,所述盐在交换温度下不熔化并含有一价或二价阳离子。 该层可以作为在水中或作为有机分散介质的分散体施加到玻璃上。 优选地,其厚度为0.02至2mm,并且所述盐的粒度小于60μm。 尽管有固体反应,但离子交换以令人惊讶的速度进行,并导致具有高度可重现性的产物。 玻璃表面的腐蚀性攻击不会发生。
    • 9. 发明授权
    • Process for the manufacture of open porous sintered bodies being
prepronderantly composed of glass ceramics
    • 用于制造由玻璃陶瓷预先组成的开放多孔烧结体的方法
    • US4904291A
    • 1990-02-27
    • US246360
    • 1988-09-19
    • Friedrich SiebersWerner KieferMaria Sura
    • Friedrich SiebersWerner KieferMaria Sura
    • C04B38/04B01J37/00B01J37/08C03B19/06C03B32/02C03C10/04C03C10/08C03C11/00
    • B01J37/0018B01J37/08C03B19/06C03B32/02C03C11/00
    • A process for manufacturing open porous sintered bodies with large open pore volume and defined pore diameters and which at least predominantly consist of glass-ceramics. They are obtained by sintering a mixture of sinterable powder and an inorganic soluble salt with defined grade of grain, the melting point of which is above the densification temperature of the sinterable powder. For the formation of a molded body the mixture of sinterable powder and inorganic salt is submitted to a molding process. The molded body is sintered in a sintering process and the soluble salt being contained in the molded body is lixiviated. As a main constituent the sinterable powder contains a pulverized crystallizable glass powder. The sintering process is performed in such a way that the crystal phases being produced during the crystallization of the crystallizable glass, and therefore the material properties, too, are controlled by the guidance of the sintering process as well as by the ion exchange taking place between the sinterable powder and the inorganic salt and which is controlled by their composition. Afterwards, the sintered body is transformed to the final glass-ceramic texture.
    • 制造具有大的开孔体积和确定的孔径并且至少主要由玻璃陶瓷组成的开放多孔烧结体的方法。 它们是通过将可烧结粉末和具有确定级别的晶粒的无机可溶性盐的混合物烧结获得的,其熔点高于可烧结粉末的致密化温度。 为了形成成型体,可烧结粉末和无机盐的混合物进行成型。 成型体在烧结工序中进行烧结,成型体中含有的可溶性盐被浸渍。 作为主要成分,可烧结粉末含有粉碎的可结晶玻璃粉末。 烧结过程以这样的方式进行,使得在可结晶玻璃的结晶期间产生的结晶相以及材料性质也受到烧结过程的引导以及通过在 可烧结粉末和无机盐,并由其组成控制。 之后,将烧结体转变成最终的玻璃陶瓷织构。