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    PROCESS FOR MANUFACTURING CORDIERITE CERAMICS HAVING CONTROLLED AND REPRODUCIBLE MECHANICAL AND THERMAL PROPERTIES
    5.
    发明公开
    PROCESS FOR MANUFACTURING CORDIERITE CERAMICS HAVING CONTROLLED AND REPRODUCIBLE MECHANICAL AND THERMAL PROPERTIES 有权
    工艺生产具有KONTROLLBAREN，重复性好，力学性能热堇青石陶瓷

    公开(公告)号：EP3115347A1

    公开(公告)日：2017-01-11

    申请号：EP15002012.1

    申请日：2015-07-06

    Applicant: Razvojni Center eNem Novi Materiali d.o.o.

    Inventor： BANTAN, Ines ,  KUSCER Hrovatin, Daniela ,  HOLC, Janez

    IPC: C04B35/195 ,  C04B35/626

    CPC classification number: C04B35/634 ,  C04B35/195 ,  C04B35/6261 ,  C04B35/6263 ,  C04B35/62635 ,  C04B35/62655 ,  C04B35/6266 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3418 ,  C04B2235/3472 ,  C04B2235/349 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6021 ,  C04B2235/606 ,  C04B2235/6567 ,  C04B2235/96 ,  C04B2235/9607

    Abstract: The object of the invention is a process for manufacturing cordierite ceramics having controlled and reproducible properties for electrotechnology, metallurgy and heating technology. Cordierite ceramics of the invention belongs to a group of alkaline earth aluminosilicates. To manufacture cordierite ceramics we used the natural materials talc, clay components, feldspar, silicon oxide and as an aluminium oxide source the synthetic compounds corundum, boehmite, aluminium hydroxide or a mixture thereof. After the mixture is ground and the products are formed, the blanks are fired at a temperature in the range from 1270 to 1350 °C for 1 hour to 10 hours. If an aluminium oxide source with a size particle exceeding 2 micrometres is added, cordierite ceramics having mechanical flexural strength of 111 to 115 MPa and thermal expansion coefficient from 3,0 to 3.2 x 10 -6 K -1 in the range from 30 to 600 °C is obtained. If an aluminium oxide source with a size particle below 2 micrometres is added, cordierite ceramics having mechanical flexural strength of 70 to 90 MPa and thermal expansion coefficient from 2.3 to 2.8 x 10-6 K -1 in the range from 30 to 600 °C is obtained.

    Abstract translation: 本发明的目的是一种用于制造具有用于电子工程，冶金和加热技术控制和可重复的性能堇青石陶瓷的制造方法。 本发明的堇青石陶瓷属于一组的碱土铝硅酸盐。 为了制造堇青石陶瓷，我们使用了天然材料滑石，粘土组分，长石，氧化硅和氧化铝为到源合成化合物刚玉，勃姆石，氢氧化铝或它们的混合物。 的混合物研磨和产品形成之后，坯件在范围内的温度烧制一二七○年至1350年℃下进行1小时至10小时。 如果具有粒径超过2微米添加氧化铝源，具有从3.0到3.2×10 -6 K -1在30至600的范围内111〜115兆帕的机械弯曲强度和热膨胀系数的堇青石陶瓷 ℃下被获得。 如果氧化铝源具有低于2微米的颗粒尺寸被添加，具有从2.3至2.8在30的范围内×10-6 K -1〜600℃70〜90兆帕的机械弯曲强度和热膨胀系数的堇青石陶瓷 获得的。

    SYSTEM AND METHOD FOR THE CONTINUOUS PREPARATION OF COLORED MATERIALS IN POWDER FORM FOR THE MANUFACTURE OF CERAMIC ARTICLES
    8.
    发明公开
    SYSTEM AND METHOD FOR THE CONTINUOUS PREPARATION OF COLORED MATERIALS IN POWDER FORM FOR THE MANUFACTURE OF CERAMIC ARTICLES 有权
    系统和方法连续生产有色物质粉末陶瓷制品的制备

    公开(公告)号：EP2874735A1

    公开(公告)日：2015-05-27

    申请号：EP13765505.6

    申请日：2013-07-17

    Applicant: Confetti, Cristian

    Inventor： Confetti, Cristian

    IPC: B01F3/18 ,  B01F5/18 ,  B01J2/00 ,  B28C5/04 ,  B01F15/02

    CPC classification number: B01F3/18 ,  B01F5/18 ,  B01F15/0238 ,  B01F15/0253 ,  B01F2005/0034 ,  B28C5/04 ,  B28C5/464 ,  B28C5/48 ,  C04B33/025 ,  C04B33/14 ,  C04B35/62635 ,  C04B2235/5427 ,  C04B2235/5436

    Abstract: An apparatus for the preparation of colored materials in powder form for the manufacture of ceramic tiles, which comprises a mixer constituted by an upper cover (6) connected to the supply line (3) of the base material and by a mixing chamber (5); a vibrating frame (9) located between upper cover and mixing chamber; a perforated baffle fixed to the vibrating frame, the vibrating frame is connected with seal to the mixing chamber. The apparatus is provided with a system for the generation of an operating vacuum pressure in the upper cover and an injection system of the colorant at the base of the mixing chamber. The apparatus of the present invention produces a method for the preparation of colored materials in powder form for the manufacture of ceramic tiles, wherein the atomized and/or granulated ceramic material of uniform particle size, containing or not containing coloring substances, is fed uniformly into a chamber under vacuum pressure with respect to the mixing chamber connected to said chamber through a vibrated perforated baffle; coloring particles are injected at the base of a mixing chamber; the atomized and/or granulated ceramic material falls by gravity and is sprinkled inside the mixing chamber; and mixing in gaseous phase of the atomized and/or granulated ceramic material with the rising current of coloring particles.

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