Permeable refractory products
    4.
    发明授权
    Permeable refractory products 失效
    耐渗透产品

    公开(公告)号:US3753746A

    公开(公告)日:1973-08-21

    申请号:US3753746D

    申请日:1971-01-15

    Applicant: KOERNER O

    Inventor: KOERNER O

    Abstract: A porous refractory body, primarily a porous plug for the refractory lining of a vessel containing molten metal through which plug gas can be blown into the metal. This body has a cold crushing strength of not less than 200 kg/cm2 and consists of a coarse-grained refractory material with a minimum quantity of a suitable binding agent, and has permeable pores of a cross section not less than 0.05 mm and a gas permeability of at least 100, and preferably more than 500 nanoperm. The hot bending strength or modulus of rupture of the body at 1,400* C is from 20 - 60 kg/cm2. The refractory material is mixed with the binding agent, and the mixture is compressed with a pressure of at least 300 kg/cm2 before firing to bring substantially all of the grains into contact with adjacent grains.

    Abstract translation: 一种多孔耐火体,主要是用于容纳熔融金属的容器的耐火衬里的多孔塞,塞子气体可以通过该熔融金属吹入金属中。 本体具有不小于200kg / cm 2的冷压碎强度,由具有最小量的合适粘合剂的粗粒耐火材料组成,并且具有不小于0.05mm的横截面的渗透孔和气体 渗透率为100以上,优选为500纳米以上。 身体在1400℃时的热弯曲强度或断裂模量为20〜60kg / cm2。 将耐火材料与粘合剂混合,并在烧制之前以至少300kg / cm 2的压力压缩混合物,以使基本上所有的颗粒与相邻的颗粒接触。

    Gas-permeable thermal insulator
    7.
    发明授权
    Gas-permeable thermal insulator 失效
    透气热绝缘子

    公开(公告)号:US4568273A

    公开(公告)日:1986-02-04

    申请号:US590555

    申请日:1984-03-20

    Abstract: A gas-permeable thermal insulator comprising a porous ceramic body of a three-dimensional reticulate structure having interconnected open cells is adapted to be installed in a heating oven or radiant tube so that exhaust gas passes through the insulator to exit the oven or tube while the waste heat of the gas is effectively recovered for reuse. The porous ceramic body is characterized by a bulk specific gravity of 0.25-0.6, an average pore diameter of 0.2-10 mm, a porosity of 75-95%, and an air pressure drop of 0.1-40 mm in water column when air passes through the body over a thickness of 1 cm at a velocity of 1 m/sec.

    Abstract translation: 包括具有互连的开放电池的三维网状结构的多孔陶瓷体的透气性绝热体适于安装在加热炉或辐射管中,使得废气通过绝缘体离开烤箱或管,同时 气体的废热被有效地回收再利用。 多孔陶瓷体的特征在于当空气通过时,水柱的体积比重为0.25-0.6,平均孔径为0.2-10mm,孔隙率为75-95%,空气压降为0.1-40mm 以1米/秒的速度穿过身体,厚度为1厘米。

    Superduty fireclay refractory brick and methods for its manufacture
    9.
    发明授权
    Superduty fireclay refractory brick and methods for its manufacture 失效
    超耐火耐火砖及其制造方法

    公开(公告)号:US5407875A

    公开(公告)日:1995-04-18

    申请号:US25086

    申请日:1993-03-02

    Inventor: Hans Petschauer

    CPC classification number: C04B33/16 C04B33/32 C04B38/00 C04B2201/40

    Abstract: A superduty fireclay refractory brick with at least 33 to 43 per cent by weight Al.sub.2 O.sub.3 and 1 to 3 per cent by weight alkali oxide for use as a large-format bottom block in a solder plating bath in furnaces for manufacturing flat glass according to the float technique has a compressive strength of 35 to 60 N/mm.sup.2 and a gas permeability of less than 4 nPm. The brick possesses an open porosity of approx. 20 to 25 per cent by volume, a gas permeability of less than 3 nPm, preferably 0.5 to 2 nPm, and a hydrogen diffusion of less than 150 mm H.sub.2 O, preferably 30 to 100 mm H.sub.2 O.

    Abstract translation: 一种超级耐火耐火砖,其具有至少33至43重量%的Al 2 O 3和1至3重量%的碱金属氧化物,用作根据浮子制造平板玻璃的炉中的焊接电镀浴中的大型底部块 技术的抗压强度为35〜60N / mm 2,气体渗透性小于4nPm。 砖具有大约的开放孔隙度。 20至25体积%,小于3nPm,优选0.5至2nPm的气体渗透性和小于150mm H 2 O,优选30至100mm H 2 O的氢扩散。

    FILTERKÖRPER UND VERFAHREN ZU DESSEN HERSTELLUNG
    10.
    发明公开
    FILTERKÖRPER UND VERFAHREN ZU DESSEN HERSTELLUNG 失效
    FILTERKÖRPER。

    公开(公告)号:EP0237530A1

    公开(公告)日:1987-09-23

    申请号:EP86903230.0

    申请日:1986-05-30

    Abstract: Corps de filtre ayant un corps (1) composite, autoporteur et à pores ouverts, qui entoure un corps de support (3) à pores grossiers, composé de gros grains (7) liés à un matériau étranger ou intrinsèque et d'un diaphragme (4) à pores fins, appliqué à une surface externe du corps de support (3) et contenant des grains fins liés à un matériau étranger ou intrinsèque, dans lequel, afin de simplifier la fabrication et pour obtenir une résistance plus élevée aux sollicitations, le diaphragme (4) contient en plus des grains fins (8) et un liant, des fibres (9) dont le diamètre absolu est entre 0,3 et 30 microns, leur longueur étant au moins 10 fois celle de leur diamètre et les fibres mesurant au moins 10 microns de longueur; le pourcentage de grains fins, de fibres et de liants par unité de volume est (60-40) : (40-20) : (30-10); le rapport de l'épaisseur du corps de support (3) à l'épaisseur du diaphragme (4) est entre 5 : 1 et 75 : 1; l'épaisseur absolue du diaphragme (4) est entre 0,2 et 2 mm et le rapport des perméabilités spécifiques du corps de support (3) et du diaphragme (4) pour les fluides dans la plage d'écoulement laminaire étant entre 2 : 1 et 100 : 1. De plus, on propose un procédé pour la production d'un tel corps de filtre.

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