Refractory batch, in particular for the production of a shaped body, and process for producing the shaped body
    1.
    发明授权
    Refractory batch, in particular for the production of a shaped body, and process for producing the shaped body 有权
    耐火批料,特别是用于生产成形体的耐火料,以及用于生产成形体的方法

    公开(公告)号:US06645425B1

    公开(公告)日:2003-11-11

    申请号:US09586700

    申请日:2000-06-01

    CPC classification number: F27D1/08 F27D1/0006

    Abstract: The invention relates to a refractory batch containing at least one refractory metal oxide component, at least one binder component, such as resin or pitch, if appropriate antioxidants, at least one carbon carrier, such as soot and/or graphite, and reinforcement fibers which are formed from a stainless steel material, which at the temperatures of use forms a coat of the refractory metal oxide on its surface, and to a shaped body made from the batch and to a process for producing the shaped body.

    Abstract translation: 本发明涉及含有至少一种难熔金属氧化物组分,至少一种粘合剂组分如树脂或沥青,如果合适的抗氧化剂,至少一种碳载体如烟灰和/或石墨的耐火材料批料,以及增强纤维, 由不锈钢材料形成,其在使用温度下在其表面上形成耐火金属氧化物的涂层,以及由批量制成的成形体和用于生产成形体的方法。

    Carbonaceous refractory shaped body with improved oxidation behavior and batch composition and method for producing the same
    8.
    发明授权
    Carbonaceous refractory shaped body with improved oxidation behavior and batch composition and method for producing the same 有权
    具有改善的氧化行为和批料组成的碳质耐火成型体及其制备方法

    公开(公告)号:US06846766B1

    公开(公告)日:2005-01-25

    申请号:US10130350

    申请日:2000-11-13

    Abstract: A batch, in particular for the production of a refractory shaped body, includes at least one refractory metal oxide component and a synthetic resin component as a binder, and a graphitizing auxiliary for producing crystalline graphite carbon from the resin. The graphitizing auxiliary originates from a group consisting of reducible organic compounds of transition elements and/or a group of active organic or inorganic metal compounds or metals, such as resin-soluble metal salts, chemically precipitated or micronized metal oxides or metals. The graphitizing auxiliary is available in molecular form over the time and/or temperature range of conversion of the synthetic resin into carbon (carbonization).

    Abstract translation: 特别是用于生产耐火成型体的批料包括至少一种难熔金属氧化物组分和作为粘合剂的合成树脂组分,以及用于从树脂生产结晶石墨碳的石墨化助剂。 石墨化助剂来源于过渡元素的还原性有机化合物和/或一组活性有机或无机金属化合物或金属,例如树脂可溶性金属盐,化学沉淀或微粉化的金属氧化物或金属。 在合成树脂转化为碳(碳化)的时间和/或温度范围内,石墨化助剂可以分子形式获得。

    Method for cleaning of aluminum oxide powders
    10.
    发明授权
    Method for cleaning of aluminum oxide powders 失效
    氧化铝粉末的清洗方法

    公开(公告)号:US5914024A

    公开(公告)日:1999-06-22

    申请号:US881219

    申请日:1997-06-24

    CPC classification number: B02C23/10 B02C13/09 B02C13/205 B02C19/0012 B03B1/00

    Abstract: A method and a cleaning device for the mechanical cleaning of a powder, in particular of primary aluminum oxide, direct the powder against a surface in order to strip particulate impurities adhering to the surface of the powder. The aluminum oxide to be cleaned is introduced into a stripping device having a striking mechanism directing the powder with a speed of 20 to 30 m/s several tens of times per second for a time period of 10 .mu.m are separated from the cleaned, powder-form aluminum oxide having a size

    Abstract translation: 用于机械清洁粉末,特别是一次氧化铝的方法和清洁装置将粉末指向表面,以便剥离附着在粉末表面上的颗粒杂质。 待清洁的氧化铝被引入剥离装置,该剥离装置具有引导机构,该粉碎机构将粉末以20-30m / s的速度,每秒几十次,对于旋转的冲击叶片<1至10秒的时间 与打击机构相反的方向将尺寸大于10μm的经清洁的粉末状氧化铝的颗粒与清洁的粉末形式的尺寸小于10μm的氧化铝和空气中的杂质分离 筛子和/或旋风分离器,并进行熔炼电解。 将尺寸小于10μm的粉末状氧化铝和杂质进料到垃圾场,或进一步加工为原料。

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