Material for covering a casting shroud
    1.
    发明授权
    Material for covering a casting shroud 失效
    用于覆盖铸造护罩的材料

    公开(公告)号:US5060831A

    公开(公告)日:1991-10-29

    申请号:US477850

    申请日:1990-02-12

    摘要: The invention concerns a material for the covering of casting shrouds.It is comprised of a calcareous composition capable of liberating calcium oxide at a temperature at least equal to 1400.degree. C., its calcium content, expressed in calcium oxide, is between ca. 10% and ca. 60% and preferably between ca. 20% and ca. 50%, the said calcareous composition is bound by a binder chosen in the group comprised of those utilizing carbon/carbon bonds by sintering.Application to the metallurgy of ferro-alloys.

    摘要翻译: PCT No.PCT / FR89 / 00337 Sec。 371日期1990年2月12日 102(e)日期1990年2月12日PCT申请1989年6月28日PCT公布。 出版物WO90 / 1990年1月11日的日期。本发明涉及一种用于覆盖浇铸罩的材料。 它由能够在至少等于1400℃的温度下释放氧化钙的钙质组合物组成,其钙含量以钙氧化物表示。 10%左右 60%,优选约ca。 20%左右 50%,所述钙质组合物由选自通过烧结利用碳/碳键的组中选择的粘合剂结合。 应用于铁合金冶金。

    Prevention of erosion and alumina build-up in casting elements
    2.
    发明授权
    Prevention of erosion and alumina build-up in casting elements 失效
    防止铸件侵蚀和氧化铝积聚

    公开(公告)号:US5151201A

    公开(公告)日:1992-09-29

    申请号:US638049

    申请日:1991-01-07

    IPC分类号: B22D41/54 C04B35/66

    CPC分类号: B22D41/54 C04B35/66

    摘要: The invention concerns a material for covering the metal contacting surfaces of casting elements such as slide gate valves and casting nozzles and shrouds to resist steel erosion and alumina deposition during the continuous casting of aluminum killed steel.It is comprised of a fused mixture of calcium oxide and zirconia, with a calcium oxide content of between about 20% and about 60% by weight and preferably between about 20% and about 50% by weight, the composition may include a binder producing carbon/carbon bonds by sintering. The material may also include a ceramic bond or may be applied as a fused layer by plasma spraying.

    摘要翻译: 本发明涉及一种用于覆盖铸造元件的金属接触表面的材料,例如滑动闸阀和铸造喷嘴和护罩,以在连续铸造铝镇静钢的过程中抵抗钢侵蚀和氧化铝沉积。 它由氧化钙和氧化锆的熔融混合物组成,其氧化钙含量为约20%至约60%重量,优选约20%至约50%重​​量,该组合物可包括粘合剂生产碳 /碳键。 该材料还可以包括陶瓷键或者可以通过等离子喷涂作为熔融层施加。

    Crucible for the crystallization of silicon
    3.
    发明授权
    Crucible for the crystallization of silicon 有权
    可溶于硅的结晶

    公开(公告)号:US07378128B2

    公开(公告)日:2008-05-27

    申请号:US11587081

    申请日:2005-04-26

    申请人: Gilbert Rancoule

    发明人: Gilbert Rancoule

    IPC分类号: C23C16/00

    摘要: The invention relates to a crucible for the crystallization of silicon and to the preparation and application of release coatings for crucibles used in the handling of molten materials that are solidified in the crucible and then removed as ingots, and more particularly to release coatings for crucibles used in the solidification of polycrystalline silicon. The objective of the inventor was to provide a crucible which does not require the preparation of a very thick coating at the end user facilities, which is faster and cheaper to produce and which presents a stronger coating with an improved adherence to the walls. It has now been found that these problems can be solved with a crucible for the crystallization of silicon comprising a) a base body comprising a bottom surface and side walls defining an inner volume; b) an intermediate layer comprising 50 to 100 wt. % of silica at the surface of the side walls facing the inner volume; and c) a surface layer comprising 50 to 100 wt. % of silicon nitride, up to 50 wt. % of silicon dioxide and up to 20 wt % of silicon on the top of the intermediate layer.

    摘要翻译: 本发明涉及一种用于硅结晶的坩埚以及用于处理在坩埚中固化并随后以坩埚去除的熔融材料的坩埚的脱模涂层的制备和应用,更具体地说,涉及用于使用的坩埚的脱模涂层 在多晶硅的凝固中。 发明人的目的是提供一种坩埚,其不需要在终端用户设施处制备非常厚的涂层,其制造更快更便宜,并且具有更好的涂层,其具有改进的对壁的粘附性。 现在已经发现,这些问题可以用用于硅的结晶的坩埚来解决,所述坩埚包括:a)包括底表面的基体和限定内部体积的侧壁; b)包含50至100wt。 在侧壁的面向内部容积的表面处的二氧化硅的百分比; 和c)包含50至100wt。 %的氮化硅,高达50wt。 %的二氧化硅和至多20wt%的硅在中间层的顶部。

    Refractory Article and Production Process Thereof
    4.
    发明申请
    Refractory Article and Production Process Thereof 有权
    耐火材料及其生产工艺

    公开(公告)号:US20090160108A1

    公开(公告)日:2009-06-25

    申请号:US12300714

    申请日:2007-05-14

    IPC分类号: C04B35/58

    摘要: The present invention relates to refractory articles in general having improved surface properties. The objective of the invention is to propose an improvement of the refractory articles comprised of a fused silica matrix which will overcome the some of the defects while keeping the excellent known properties of the fused silica matrix. This objective is reached when a sintered ceramic phase is present in the porosity of at least a portion of at least a surface of the matrix. The present invention also relates to a process for producing such an article.

    摘要翻译: 本发明涉及通常具有改进的表面性质的耐火制品。 本发明的目的是提出由熔融二氧化硅基质组成的耐火材料制品的改进,其将克服一些缺陷,同时保持熔融二氧化硅基质的优良已知性能。 当烧结的陶瓷相存在于基体的至少一个表面的至少一部分的孔隙中时,达到了该目的。 本发明还涉及制造这种制品的方法。

    Crucible for the Treatment of Molten Silicon
    5.
    发明申请
    Crucible for the Treatment of Molten Silicon 有权
    用于熔融硅处理的坩埚

    公开(公告)号:US20080292524A1

    公开(公告)日:2008-11-27

    申请号:US12159865

    申请日:2007-01-12

    申请人: Gilbert Rancoule

    发明人: Gilbert Rancoule

    摘要: A crucible for the treatment of molten silicon includes a basic body with a bottom surface and lateral walls defining an inner volume. The basic body comprises at least 65% by weight of silicon carbide, and from 12 to 30% by weight of a constituent selected from silicon oxide or nitride. Moreover, the basic body comprises at least one silicon oxide and/or nitride coating, at least on the surfaces defining the inner volume of the crucible.

    摘要翻译: 用于处理熔融硅的坩埚包括具有底部表面的基体和限定内部体积的侧壁。 碱性体包含至少65重量%的碳化硅和12-30重量%的选自氧化硅或氮化物的组分。 此外,至少在限定坩埚的内部容积的表面上,基体包括至少一个氧化硅和/或氮化物涂层。

    Insulating refractory material
    8.
    发明授权
    Insulating refractory material 有权
    绝缘耐火材料

    公开(公告)号:US06559082B1

    公开(公告)日:2003-05-06

    申请号:US10129993

    申请日:2002-07-30

    IPC分类号: C04B3514

    CPC分类号: C04B35/66 C04B35/18

    摘要: The invention concerns a crack-free insulating refractory material made from a composition comprising 20-80% by weight of a ceramic matrix, 5-40% by weight of insulating microspheres, 0.5-15% by weight of one more binders, 5-20% by weight of a metal or a metal alloy able to melt during the preheating or the first minute of use and 0-25% by weight of water. The ceramic matrix is preferably comprised of vitreous and non-vitreous grains.

    摘要翻译: 本发明涉及一种由包含20-80重量%的陶瓷基体,5-40重量%的绝缘微球,0.5-15重量%的一种粘合剂,5-20重量%的组合物制成的无裂纹绝缘耐火材料 在预热或使用第一分钟期间能够熔化的金属或金属合金的重量%,以及0-25重量%的水。 陶瓷基质优选由玻璃质和非玻璃状颗粒组成。

    Magnesia-carbon refractory compositions for slide gate plates and method
of manufacture
    9.
    发明授权
    Magnesia-carbon refractory compositions for slide gate plates and method of manufacture 失效
    用于滑动门板的氧化镁 - 碳耐火组合物及其制造方法

    公开(公告)号:US5250479A

    公开(公告)日:1993-10-05

    申请号:US869932

    申请日:1992-04-16

    CPC分类号: C04B35/013 C04B35/66

    摘要: The invention concerns a fired magnesia-carbon shape having a combination of properties making it especially suitable for slide gate plates, inserts for such plates and for pouring nozzles useful in casting aggressive steels. The fired refractory shape is formed from a batch consisting essentially of, by weight percent,2 to 8 finely divided graphite (natural or synthetic);3 to 8 aluminum metal powder;1 to 5 of finely divided silica and/or a silicon yielding powder;an effective amount of carbon bond forming resins;and the balance coarse and fine magnesia grains.The magnesia grains should contain less than about 0.02 weight percent boron oxide. After firing, the shape is characterized by a carbon bonding system including a spinel (magnesia-alumina) phase plus aluminum carbide bonding the magnesia-carbon matrix. The refractory shape is preferably carbon impregnated after firing to further enhance its properties.

    摘要翻译: 本发明涉及具有特性组合的烧制的氧化镁碳形状,使其特别适用于滑动门板,用于这种板的插入件和用于铸造侵蚀性钢的倾倒喷嘴。 烧制的耐火形状由基本上由重量百分比组成的批次形成,2至8份细碎石墨(天然或合成); 3至8铝金属粉末; 1至5份细分二氧化硅和/或产硅粉末; 有效量的碳键形成树脂; 和平衡粗和细的氧化镁颗粒。 氧化镁颗粒应含有少于约0.02重量%的氧化硼。 焙烧后,形状的特征在于包括尖晶石(氧化镁 - 氧化铝)相和加碳酸铝结合氧化镁 - 碳基质的碳键系统。 耐火形状优选在烧结后浸渍碳以进一步提高其性能。