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首页> 外国专利> METHOD FOR THE PREPARATION OF NANOMETRIC METAL OXIDE ADDITIVES THAT REDUCE SINTERING TEMPERATURE AND/OR INCREASE PRODUCTIVITY IN THE MANUFACTURE OF CERAMIC PIECES, IMPROVING MECHANICAL PROPERTIES WITHOUT AFFECTING THE VITRIFICATION PROPERTIES OF CERAMIC BODIES, TILES OR COATINGS

METHOD FOR THE PREPARATION OF NANOMETRIC METAL OXIDE ADDITIVES THAT REDUCE SINTERING TEMPERATURE AND/OR INCREASE PRODUCTIVITY IN THE MANUFACTURE OF CERAMIC PIECES, IMPROVING MECHANICAL PROPERTIES WITHOUT AFFECTING THE VITRIFICATION PROPERTIES OF CERAMIC BODIES, TILES OR COATINGS

机译：制备可降低烧结件温度和/或提高陶瓷零件生产效率，改善机械性能而又不影响陶瓷本体，砖或涂层的氧化性能的纳米金属氧化物添加剂的方法

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摘要

The object of this invention is a process for manufacturing, conditioning and stabilization of a family of base additives sodium, potassium, boron, silicon, zinc, calcium oxides, among others, prepared by physicochemical and chemical synthesis methods that form nanometric structures, reformulated with deflocculant, sequestrants and dispersants additives that allow to obtain a dispersion or powder capable to decrease the sintering temperature of a ceramic body due to the high fluxing power, which is maximized by the use of nanotechnology in the structures obtained. The process consists in the preparation of nucleation seeds of metal, silicates and carbonates oxides by means of a physicochemical process, and which allow nanometric structures to grow by means of a chemical process in a chemical synthesis process wet basis of sodium, boron, silicon, zinc, potassium and calcium oxides. The combination of these oxides allows structuring elements of high fluxing power due to their high surface area and physicochemical composition. The additives prepared in this invention are chemically stabilized with deflocculating agents, which allow the additives to be incorporated into the aqueous medium grinding process of the ceramic body. Applications made with the additives of this invention allow the sintering temperature of a red body to be reduced from 1150 °C to 1000 °C and in porcelain bodies from 1180 °C to 1050 °C, with the use of 0.2 to 5% of the additive, or increasing the speed of the heat treatment by up to 20%, and it can be used in the manufacture of bathroom fittings, molding parts, components for tooling, coatings, valances, enamels, vitrified pastes and other ceramic components. The present invention proposes several nanostructured additive formulations with high performance fluxing properties, which allow to optimize and standardize the sintering process and to improve the mechanical properties of the ceramic body. It also proposes different methods of application of the additive in ceramic formulations.
机译：本发明的目的是一种用于制造，调节和稳定一系列碱添加剂的方法，所述碱添加剂是钠，钾，硼，硅，锌，氧化钙等，它们是通过形成纳米结构的物理化学和化学合成方法制备的，用防絮凝剂，螯合剂和分散剂添加剂，它们可通过高通量而获得能够降低陶瓷坯体烧结温度的分散体或粉末，而通过在所获得的结构中使用纳米技术可以最大程度地提高其分散性。该过程包括通过物理化学过程制备金属，硅酸盐和碳酸盐氧化物的成核种子，并允许在化学合成过程中通过化学过程以湿态的钠，硼，硅，锌，钾和钙的氧化物。这些氧化物的组合由于它们的高表面积和物理化学组成而允许高通量的结构元素。在本发明中制备的添加剂用抗絮凝剂化学稳定，这允许将添加剂掺入陶瓷体的水介质研磨过程中。用本发明的添加剂进行的应用允许将红体的烧结温度从1150℃降低至1000℃，并将瓷体的烧结温度从1180℃降低至1050℃，使用0.2％至5％的烧结体。添加剂，或将热处理速度提高多达20％，可用于制造浴室配件，成型零件，工具部件，涂料，化合料，搪瓷，玻璃化浆料和其他陶瓷部件。本发明提出了几种具有高性能助熔性能的纳米结构添加剂配方，其允许优化和标准化烧结工艺并改善陶瓷体的机械性能。它还提出了在陶瓷配方中使用添加剂的不同方法。

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