• 主题
高级搜索  >
历史搜索 清空历史
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：一种制备纳米金属氧化物添加剂的方法，该添加剂可降低陶瓷件制造中的烧结温度和/或提高生产率，在不影响陶瓷体，砖或涂层的陶瓷化性能的情况下提高其机械性能。

页面导航
  • 摘要
  • 著录项
  • 相似文献

摘要

The present invention relates to a process for manufacturing, conditioning and stabilising a family of additives based on oxides of sodium, potassium, boron, silicon, zinc and calcium, inter alia, prepared using physicochemical methods and chemical synthesis methods, which form nanometric structures and are reformulated with deflocculant additives, sequesterants and dispersants that allow the production of a dispersion or powder able to reduce the sintering temperature of a ceramic body, owing to the high melting capacity thereof, which is maximised by the use of nanotechnology in the structures obtained. The method consists of preparing nucleation seeds of metal oxides, silicate and carbonates by means of a physicochemical process, which allow, by means of a chemical process, the growth of nanometric structures in a wet chemical synthesis process for synthesising oxides of sodium, boron, silicon, zinc, potassium and calcium. The combination of these oxides allows the structuring of elements having a high melting capacity owing to the high surface area and physicochemical composition thereof. The additives produced in the present invention are chemically stabilised with deflocculant agents that allow the additives to be incorporated in the process of grinding the ceramic body in an aqueous medium. The uses developed with the additives of the present invention allow of the sintering temperature of a red body to be reduced from 1150 to 1000°C and the sintering temperature of porcelain bodies to be reduced from 1180 to 1050°C, with the use of 0.2 to 5% of the additive, or by increasing the thermal treatment speed by 20%. The method can be used in the manufacture of bathrooms, moulding pieces, components for tools, coatings, border tiles, enamels, slips and other ceramic components. The present invention proposes several formulations of nanostructured additives with high-performance melting properties, which allow the sintering process to be optimised and standardised and the mechanical properties of the ceramic body to be improved. It also proposes various methods for using the ceramic formulation additive.
机译：本发明涉及一种用于制造，调节和稳定基于钠，钾，硼，硅，锌和钙的氧化物的添加剂族的方法，该方法尤其是使用物理化学方法和化学合成方法制备的，其形成纳米结构和用抗絮凝剂添加剂，多价螯合剂和分散剂对它们进行了重新配制，由于其高熔化能力，使得分散体或粉末的生产能够降低陶瓷体的烧结温度，而通过在所获得的结构中使用纳米技术可以使其最大化。该方法包括通过物理化学过程制备金属氧化物，硅酸盐和碳酸盐的成核种子，其通过化学过程允许在湿法化学合成过程中生长纳米结构，以合成钠，硼，硅，锌，钾和钙。这些氧化物的组合由于其高表面积和其物理化学组成而使得具有高熔融能力的元素结构化。用抗絮凝剂对本发明中生产的添加剂进行化学稳定，该抗絮凝剂使添加剂可以在含水介质中研磨陶瓷体的过程中掺入。用本发明的添加剂开发的用途允许使用0.2的方法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℃。至添加剂的5％，或通过将热处理速度提高20％。该方法可用于制造浴室，模制件，工具部件，涂料，边框砖，搪瓷，粉浆和其他陶瓷部件。本发明提出了几种具有高性能熔融性能的纳米结构添加剂的配方，这些配方可以优化和标准化烧结工艺，并可以改善陶瓷体的机械性能。还提出了使用陶瓷配方添加剂的各种方法。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号