Abstract:
A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA 6 , wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C 12 A 7 , and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from -20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.
Abstract translation:提供了一种用于改善与碱和/或碱性环境中的至少一种接触的衬垫的绝缘特性和/或穿透阻力的方法。 该方法包括用碱性环境和/或碱性环境对具有耐火材料组合物的磨损的表面进行衬里,所述耐火材料组合物包含基本上由具有式CA 6的六钙铝钙熟料组成的耐火聚集体, 其中C等于氧化钙,其中A等于氧化铝,并且其中所述六铝酸钙熟料具有从零至小于约50重量%的C 12 N 7 ,并且其中大于98重量%的六铝酸钙熟料熟料具有-20微米至+3毫米的粒度,用于形成表面的衬里。 该方法提高了衬套的绝缘特性和/或穿透阻力。
Abstract:
The invention relates to a fireproof casting insert made of at least one fireproof raw material, in particular at least one basic fireproof material, in particular, sinter magnesia and/or melt magnesia (MgO), in addition to at least one cold hardened primary binding agent and at least one secondary binding agent producing a carbon bond that is thermally hardened under the effect of temperature. From the broken raw material granulates, predefined core fractions having a predefined raw material and grain formation optionally, by adding flour cores, is prepared to form an amount of raw material. The cold bound primary binding agent is a powdery lignin bond and/or a liquid, dual-component, cold hardened resin binding agent.
Abstract:
A charged particle detector and method are disclosed providing for simultaneous detection and measurement of charged particles at one or more levels of particle flux in a measurement cycle. The detector provides multiple and independently selectable levels of integration and/or gain in a fully addressable readout manner.
Abstract:
This invention relates to refractory mixes produced by mixing a refractory material with an organic binder and heating to a temperature of typically from about 50° C to about 100 0 C to form a stable composite granulate. The refractory mixes comprise a major amount of a refractory material and a minor amount of a binder composition comprising (a) condensed tannin and (b) furfuryl alcohol. The refractory mixes are used to prepare shaped (e.g. bricks) and unshaped (e.g. blast furnace tap holes, troughs, and tundish liners) refractory products. The invention also relates to a process for preparing the refractory products using the refractory mixes.
Abstract:
Mélange de grains d'alumine-zircone fondus présentant l'analyse chimique suivante, en pourcentages en poids et pour un total de 100 %, ZrO + HfO 2 : 40 - 45,5 %; Al 2 O 3 : 46 - 58%; Additif: 0 - 10 %, SiO 2 : 2 .
Abstract:
Die Erfindung betrifft einen keramischer Versatz für feuerfeste Anwendungen mit 83-99,5 Gew.-% mindestens eines refraktären Grundstoffs in einer Kornfraktion 2 -Trägers sowie etwaiger Rest: sonstige Bestandteile. Die Erfindung betrifft auch ein Produkt unter Verwendung dieses Versatzes.
Abstract:
El ladrillo refractario no cocido conteniendo grafito para hornos de la industria del cemento y su utilización que constituye el objeto de esta patente permite su empleo en el interior de los mencionados hornos para contrarrestar la deformación térmica y físico-química que sufren. Su composición se basa en una combinación de un porcentaje en peso de Magnesita ( MgCO3 ) entre el 75 - 62 %, un porcentaje en peso de Alúmina ( Al2O3 ) entre un 12 - 20 %, y entre un 4 - 11 % de Grafito. Así como de aditivos mejoradores del choque térmico y la resistencia térmica y la oxidación ( en una composición conjunta de aluminio en polvo, silicio metal, carburo de silicio y arcilla ) de entre un 9 - 7 % y de resinas entre un 3 - 4 %. En su utilización, este material refractario puede ser dispuesto como recubrimiento en el interior de los hornos de cemento, en las zonas de transición - alta y baja - ( 4 ) , y en la zona de sinterización ( 5 ).
Abstract translation:本发明涉及用于水泥工业窑的含有石墨的未烧制耐火砖,以及在上述窑炉中使用上述耐火砖,以抵消其中相关的热和物理化学变形。 本发明的砖组合物包含75至62重量%的菱镁矿(MgCO 3),12至20重量%的氧化铝(Al 2 O 3)和4至11重量%的石墨。 所述组合物还含有9至7重量%的添加剂,其用于改善耐热冲击性,耐热性和抗氧化性(在包含铝粉末,硅金属,碳化硅和粘土的组合物中)和3至4重量% .-%的树脂。 所述耐火材料可以用于在高和低过渡区域(4)以及烧结区域(5)中涂覆水泥窑的内部。
Abstract:
The invention relates to a reductively fired fireproof ceramic shaped body comprised of a batch which, in addition to a fireproof oxidic matrix material having a particle size
Abstract:
An article (1), for example a nozzle or shroud, or a stopper rod, for use with molten metal, especially molten steel, comprising a body (3) formed from carbon-bonded refractory material (4), a surface layer (15) of the body being porous, the porous surface layer having a coating of glaze (17).