Permeable refractory products
    29.
    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。

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