Method and powder mixture for repairing oxide based refractory bodies
    1.
    发明授权
    Method and powder mixture for repairing oxide based refractory bodies 失效
    用于修复氧化物基耐火材料体的方法和粉末混合物

    公开(公告)号:US5700309A

    公开(公告)日:1997-12-23

    申请号:US772868

    申请日:1996-12-26

    IPC分类号: C04B35/65 F27D1/16 B22F1/00

    CPC分类号: C04B35/651 F27D1/1647

    摘要: A method of repairing an oxide-based refractory body by projecting a powder mixture against a hot surface of the body and in the presence of oxygen to provide a refractory repair mass includes providing a powder mixture composed of particles of at least one refractory oxide; fuel particles which react in an exothermic manner with the oxygen to form a refractory oxide and which are particles composed of at least one element selected from the group consisting of magnesium, aluminum, silicon, and mixtures thereof; and particles of silicon carbide present in an amount which is effective to provide a reduced porosity of the refractory repair mass and which does not exceed 10% by weight based on the weight of the powder mixture; and projecting the powder mixture against a hot surface of the oxide-based refractory body and in the presence of oxygen. Preferably, the powder mixture contains at least 1%, most preferably from 1 to 5%, by weight of the particles of silicon carbide. Preferably, the particles of silicon carbide have a particle size of less than 200 .mu.m.

    摘要翻译: 通过将粉末混合物投射到身体的热表面并在氧气存在下来提供耐火修复物质来修复氧化物基耐火体的方法包括提供由至少一种难熔氧化物的颗粒组成的粉末混合物; 燃料颗粒,其以放热方式与氧反应以形成难熔氧化物,并且是由选自镁,铝,硅及其混合物中的至少一种元素组成的颗粒; 和碳化硅颗粒的存在量,其量可以有效地提供耐火修补物质的孔隙率降低,并且基于粉末混合物的重量不超过10重量%; 并将粉末混合物投射到氧化物基耐火体的热表面上并在氧的存在下。 优选地,粉末混合物含有至少1重量%,最优选1至5重量%的碳化硅颗粒。 优选地,碳化硅颗粒的粒径小于200μm。

    Cutting refractory material
    2.
    发明授权
    Cutting refractory material 失效
    切割耐火材料

    公开(公告)号:US5961371A

    公开(公告)日:1999-10-05

    申请号:US983336

    申请日:1997-12-29

    摘要: A method and powder mixture are described for cutting a refractory body. The powder mixture comprises refractory metal oxide particles and fuel particles which burn exothermically by combining with oxygen to form a refractory oxide. The mixture is characterised in that the refractory metal oxide of the powder mixture comprises calcium oxide and/or magnesium oxide. The powder mixture enables refractory bodies to be cut more effectively than hitherto.

    摘要翻译: PCT No.PCT / BE96 / 00063 Sec。 371 1997年12月29日第 102(e)1997年12月29日PCT PCT 1996年6月19日PCT公布。 第WO97 / 01516号公报 日期1997年1月16日描述了一种用于切割耐火体的方法和粉末混合物。 粉末混合物包含难熔金属氧化物颗粒和通过与氧结合而形成耐火氧化物而放热燃烧的燃料颗粒。 该混合物的特征在于粉末混合物的难熔金属氧化物包括氧化钙和/或氧化镁。 粉末混合物使耐火材料比迄今为止更有效地切割。

    Production of a siliceous refractory mass
    3.
    发明授权
    Production of a siliceous refractory mass 失效
    生产硅质耐火材料

    公开(公告)号:US5780114A

    公开(公告)日:1998-07-14

    申请号:US849305

    申请日:1997-05-27

    摘要: A process for producing a crystalline siliceous refractory mass includes providing particulate constituents to be projected comprised of (1) solid refractory particles comprising silica in the form of vitreous silica, and (2) solid combustible particles comprising silicon particles; projecting the particulate constituents with gaseous oxygen against a surface under ceramic welding conditions effective to cause a reaction between the solid combustible particles and the gaseous oxygen to occur against the surface, thereby releasing the heat of reaction against the surface so that a coherent refractory mass comprising cristobalite is formed, wherein the surface against which the solid refractory particles are projected is at a temperature of at least 1000.degree. C. The process can be used to manufacture refractory bricks or blocks, to repair furnaces, or to repair worn surfaces of a siliceous refractory material.

    摘要翻译: PCT No.PCT / BE95 / 00108 Sec。 371日期:1997年5月27日 102(e)日期1997年5月27日PCT提交1995年11月23日PCT公布。 第WO96 / 16917号公报 日本1996年6月6日制造结晶硅质耐火材料的方法包括提供待投影的颗粒组分,其包括(1)包含二氧化硅形式的二氧化硅的固体耐火颗粒,和(2)包含硅颗粒的固体可燃颗粒; 在有效地引起固体可燃性颗粒和气态氧之间的反应的陶瓷焊接条件下将颗粒成分用气态氧气投射到表面上,从而释放反对表面的反应热,从而包括 形成方英石,其中固体耐火颗粒投射的表面处于至少1000℃的温度。该方法可用于制造耐火砖或块,修复炉或修复硅质的磨损表面 耐火材料。

    Process for forming a coherent refractory mass on a surface
    4.
    发明授权
    Process for forming a coherent refractory mass on a surface 失效
    在表面上形成相干耐火材料块的方法

    公开(公告)号:US5686028A

    公开(公告)日:1997-11-11

    申请号:US902864

    申请日:1992-06-23

    IPC分类号: C04B35/16 C04B35/65 F27D1/16

    摘要: A process for forming a coherent refractory mass on a surface of a refractory, which refractory includes at least one silicon compound, the process including providing a mixture including (1) combustible particles including silicon particles, (2) refractory particles of one or a plurality of substances which constitute a major portion by weight of the mixture, and (3) particles of another substance or precursor of the another substance which particles are nonmetallic and which another substance causes incorporation of silica, formed by combustion of the silicon particles, into a crystalline lattice of a compound formed between the silica and the another substance within the coherent refractory mass to be formed; and projecting the mixture against the surface of a refractory, simultaneously with oxygen, so that the combustible particles react in an exothermic manner with the projected oxygen and release sufficient heat to form the coherent refractory mass under action of heat of combustion and so that silica is formed by combustion of the silicon particles, which silica is incorporated into the crystalline lattice of the compound formed between the silica and the another substance such that the coherent refractory mass adheres durably to the surface of the refractory and retains this adherence under repeated variations in thermal conditions.

    摘要翻译: 一种在耐火材料表面形成耐火材料块的方法,该耐火材料包括至少一种硅化合物,该方法包括提供一种混合物,该混合物包括(1)包括硅颗粒在内的可燃颗粒,(2)一种或多种耐火材料颗粒 构成混合物重要部分的物质,和(3)颗粒是非金属的另一种物质或另一种物质的前体的颗粒,另一种物质引起由硅颗粒的燃烧形成的二氧化硅掺入到 形成在所形成的相干耐火材料块内的二氧化硅和另一物质之间的化合物的晶格; 并且将混合物与氧同时地向耐火材料的表面突出,使得可燃颗粒以放热的方式与预计的氧气反应并释放足够的热量以在燃烧热的作用下形成粘结的耐火材料块,并且二氧化硅是 通过硅颗粒的燃烧形成,该二氧化硅被结合到形成在二氧化硅和另一物质之间的化合物的晶格中,使得粘结的耐火材料块耐久地粘附到耐火材料的表面上,并在热重复的变化下保持该粘附性 条件。

    Process and mixture for forming a coherent Refractory mass on a surface
    5.
    发明授权
    Process and mixture for forming a coherent Refractory mass on a surface 失效
    在表面形成相干的耐火材料的工艺和混合物

    公开(公告)号:US5866049A

    公开(公告)日:1999-02-02

    申请号:US788466

    申请日:1997-01-29

    IPC分类号: C04B35/16 C04B35/65 F27D1/16

    摘要: A ceramic welding process for forming a coherent refractory mass on a surface of a refractory which is hot and which is comprised of at least one silicon compound includes providing a mixture composed of combustible particles including silicon particles, refractory particles which are silicon carbide particles and which constitute a major portion by weight of the mixture, and particles of one of (a) another substance selected from the group consisting of CaO, MgO, FeO, and mixtures thereof or (b) particles of a nonmetallic precursor of the another substance, which another substance causes incorporation of silica, formed by combustion of the silicon particles, into a crystalline lattice of a compound formed between the silica and the another substance within the coherent refractory mass being formed; and projecting the mixture against the surface of the refractory, simultaneously with substantially pure oxygen, so that the combustible particles react in an exothermic manner by combusting with the projected oxygen and release sufficient heat to form the coherent refractory mass under action of heat of combustion, and so that silica, formed by combustion of the silicon particles, is incorporated into the crystalline lattice of a compound formed between the silica and the another substance.

    摘要翻译: 一种用于在耐热材料表面上形成粘结性耐火材料的陶瓷焊接工艺,该耐火材料是热的并且由至少一种硅化合物组成,包括提供由可燃颗粒组成的混合物,包括硅颗粒,耐火颗粒,其是碳化硅颗粒, 构成混合物的主要部分重量,和(a)选自CaO,MgO,FeO及其混合物的另一种物质的颗粒,或(b)另一种物质的非金属前体颗粒,其中 另一物质导致由硅颗粒的燃烧形成的二氧化硅结晶成形成在形成的相干耐火材料块内的二氧化硅和另一物质之间形成的化合物的晶格中; 并且将混合物与基本上纯的氧气同时地投射在耐火材料的表面上,使得可燃颗粒以放热的方式通过与投射的氧气一起燃烧并释放足够的热量以在燃烧热的作用下形成粘结的耐火材料块, 并且使得通过硅颗粒的燃烧形成的二氧化硅被并入形成在二氧化硅和另一物质之间的化合物的晶格中。

    Formation of a refractory repair mass
    6.
    发明授权
    Formation of a refractory repair mass 有权
    形成难治性修复体

    公开(公告)号:US06372288B1

    公开(公告)日:2002-04-16

    申请号:US09117643

    申请日:1998-08-03

    IPC分类号: B05D102

    摘要: A ceramic welding process for the formation of a coherent refractory repair mass on a surface of an electrocast refractory material includes providing an electrocast refractory material having a surface to be repaired; providing a first powder mixture comprised of combustible particles, refractory particles, and at least one constituent which enhances production of a vitreous phase in the coherent refractory repair mass; and projecting the first powder mixture in a gas stream containing oxygen against the surface to be repaired so that the combustible particles react with the projected oxygen against the surface in a highly exothermic manner and release sufficient heat of combustion to form a first coherent refractory repair mass.

    摘要翻译: 一种用于在电铸耐火材料表面上形成连贯的耐火材料修复块的陶瓷焊接方法包括提供具有待修复表面的电铸耐火材料; 提供由可燃颗粒,耐火颗粒和至少一种增强相干性耐火修复体中玻璃质相的产生的组分组成的第一粉末混合物; 并且将第一粉末混合物在含有氧气的气流中投射到待修复的表面上,使得可燃颗粒以高度放热的方式与投射的氧气相对于表面反应并释放足够的燃烧热量以形成第一相干耐火修复质量块 。

    Process and apparatus for making ceramic articles
    7.
    发明授权
    Process and apparatus for making ceramic articles 失效
    制造陶瓷制品的方法和装置

    公开(公告)号:US5853654A

    公开(公告)日:1998-12-29

    申请号:US849168

    申请日:1997-05-27

    摘要: A process and apparatus for making a ceramic article, especially pipes and tubes of ceramic material such as silicon carbide, in which the article is formed by projecting a ceramic powder mixture comprising refractory particles and combustible particles against a smooth-surface metal former which is heated to a temperature of at least 850.degree. C. where in the presence of an oxygen-rich gas the combustible particles react exothermically to produce from the refractory particles and the reaction product of the combustible particles a coherent refractory article in the shape of the former.

    摘要翻译: PCT No.PCT / BE95 / 00109 Sec。 371日期:1997年5月27日 102(e)日期1997年5月27日PCT提交1995年11月24日PCT公布。 WO96 / 16918 PCT出版物 日期1996年6月6日制造陶瓷制品的方法和装置,特别是诸如碳化硅等陶瓷材料的管和管,其中通过将包含耐火颗粒和可燃颗粒的陶瓷粉末混合物投射到光滑表面上而形成制品 金属成型体,其被加热至至少850℃的温度。在富氧气体存在下,可燃颗粒放热反应以由耐火颗粒产生,并且可燃颗粒的反应产物为 前者的形状。

    Lance for heating or ceramic welding
    9.
    发明授权
    Lance for heating or ceramic welding 失效
    用于加热或陶瓷焊接的喷枪

    公开(公告)号:US06186410B1

    公开(公告)日:2001-02-13

    申请号:US09402783

    申请日:1999-10-12

    IPC分类号: B05B124

    CPC分类号: B05B7/205

    摘要: Apparatus and process for one of flame treatment or ceramic welding, the apparatus including a single tubular lance having a tip end, a butt end, and a head portion with a central main bore provided at the tip end so that ceramic welding materials comprised of particulate material containing oxidizable particles and combustion-supporting carrier gas are introduced at the butt end, pass through the main bore and emerge at the tip end during ceramic welding; wherein the head portion further comprises at least one conduit to convey a mixture of a fuel gas and a combustion-supporting gas, each of the at least one conduit having an orifice at the tip end of the single tubular lance and being provided with a portion for introduction of fuel gas and a portion for introduction of combustion-supporting gas so that fuel gas and combustion-supporting gas introduced at the butt end combine in the at least one conduit and emerge to form a flame at the tip end of the at least one conduit during flame treatment, and wherein the head portion is formed in two parts including an inner block including the central main bore, the conduits for fuel gas and combustion-supporting gas, and respective outlet orifices of the central main bore and at least one conduit, and an outer block including supply passageways to the inner block from respective supply tubes for particulate material and combustion-supporting carrier gas and for fuel gas and combustion-supporting gas.

    摘要翻译: 一种用于火焰处理或陶瓷焊接的装置和方法,该装置包括具有尖端,对接端和头部部分的单个管状喷枪,其中心主孔设置在尖端处,使得陶瓷焊接材料由颗粒 含有可氧化颗粒和燃烧载体载体的材料在对接端引入,通过主孔并在陶瓷焊接期间在尖端出现; 其中所述头部还包括至少一个输送燃料气体和燃烧支持气体的混合物的管道,所述至少一个管道中的每个管道在所述单个管状喷枪的尖端处具有孔口,并且设置有部分 用于引入燃料气体和用于引入燃烧支持气体的部分,使得在对接端引入的燃料气体和燃烧负载气体在至少一个导管中组合并且在至少一个端部形成火焰 在火焰处理期间的一个导管,并且其中所述头部形成为包括内部块的两个部分,所述内部块包括所述中心主孔,用于燃料气体的导管和燃烧支持气体,以及所述中心主孔的相应出口孔和至少一个 导管和外部块,其包括从用于颗粒材料和燃烧支撑载气的各自供应管和用于燃料气体和燃烧支撑的内部块的供给通道 气体。

    Surface treatment of refractories
    10.
    发明授权
    Surface treatment of refractories 失效
    耐火材料表面处理

    公开(公告)号:US5435948A

    公开(公告)日:1995-07-25

    申请号:US97198

    申请日:1993-07-27

    摘要: A process for cleaning a surface of a refractory structure which is at an elevated temperature, including projecting against the surface a comburent gas stream which is a powder stream including fuel particles carried in an oxygen-containing carrier gas the comburent gas stream impinging upon the surface at an impingement zone, whereby the fuel particles are caused or allowed to burn in a reaction zone defined generally around the impingement zone and the heat generated by the combustion of the fuel particles causes the surface or material adhered thereto to melt and provide a melted material, and projecting a scouring stream including oxygen simultaneously or alternately at the surface to scour the surface in the vicinity of the reaction zone and thereby clean the surface due to the scouring stream blowing away the melted material.

    摘要翻译: 一种用于清洁处于升高温度的耐火结构的表面的方法,包括向表面突出的组合气流,该组合气流是包含载持在含氧载体中的燃料颗粒,所述燃料颗粒撞击在表面上的组合气流 在冲击区域,由此燃料颗粒被引起或允许在通常围绕冲击区域限定的反应区域中燃烧,并且由燃料颗粒的燃烧产生的热量导致附着在其上的表面或材料熔化并提供熔化的材料 并且在表面上同时或交替地投射包括氧气的冲刷流,以冲洗反应区附近的表面,从而由于冲洗流吹走熔化的材料而清洁表面。