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1.发明授权
公开(公告)号：US4627945A
公开(公告)日：1986-12-09
申请号：US635076
申请日：1984-07-27
IPC分类号： C04B35/103 , B22D41/54 , C04B35/00 , C04B35/01 , C04B35/101 , C04B35/634 , B29C45/73
CPC分类号： C04B35/63472 , B22D41/54 , C04B35/013 , C04B35/101 , C04B35/634
摘要： An alumina-carbon shape is manufactured from a composition comprising 1-8 weight percent fine silicon, 1-16 weight percent reactive alumina, 1-30 weight percent calcined fluidized bed coke, 1-30 weight percent of a spalling inhibiting additive, and the balance of the mix synthetic alumina, plus the additions of 5-10 weight percent of a high carbon yielding resin as a molding vehicle and 0.5-4 weight percent solvent, and up to 2 weight percent of a low temperature curing agent, such as, paraformaldehyde or hydrochloric acid. The mix is formed at ambient temperature into a shape through an injection molding process. Solidification is accomplished by curing in the mold at a temperature less than 100.degree. C. After stripping the shape from the mold, the solvents are removed from the shape by drying at a temperature above 100.degree. C. The shapes are then heated to a temperature above 550.degree. C. to coke the resin. The shapes may be tar impregnated to decrease coked porosity and to increase their resistance to mold powder.
摘要翻译： 氧化铝 - 碳形状由包含1-8重量％的细硅，1-16重量％的活性氧化铝，1-30重量％的煅烧流化床焦炭，1-30重量％的剥落抑制添加剂的组合物制成， 平衡混合合成氧化铝，加上添加5-10重量％的作为成型载体的高碳树脂和0.5-4重量％溶剂，和至多2重量％的低温固化剂，例如， 多聚甲醛或盐酸。 混合物通过注射成型工艺在环境温度下形成为一种形状。 通过在低于100℃的温度下在模具中固化来实现凝固。从模具中剥离形状之后，通过在高于100℃的温度下干燥将溶剂从形状中除去。然后将形状加热至温度 高于550℃以使树脂焦化。 形状可以是焦油浸渍以减少焦化孔隙率并增加它们对模具粉末的抵抗力。
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公开(公告)号：US4528244A
公开(公告)日：1985-07-09
申请号：US537921
申请日：1983-09-30
CPC分类号： C04B41/009 , C03C17/225 , C04B41/5067 , C04B41/87 , C03C2217/29 , C03C2218/11 , C03C2218/17
摘要： Fused silica shapes having a coating of sialon on the surfaces thereof.
摘要翻译： 熔融二氧化硅形状，其表面上具有赛隆的涂层。
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公开(公告)号：US4600607A
公开(公告)日：1986-07-15
申请号：US690280
申请日：1985-01-10
CPC分类号： C04B41/009 , C04B41/5089 , C04B41/85
摘要： A coating for a substrate includes a mix comprising sodium silicate, water and sialon powder. A defoaming agent is also added to the mix.
摘要翻译： 用于基材的涂层包括包含硅酸钠，水和赛隆粉末的混合物。 消泡剂也被添加到混合物中。
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公开(公告)号：US4557884A
公开(公告)日：1985-12-10
申请号：US626255
申请日：1984-06-29
CPC分类号： C04B35/65
摘要： A means for producing nitride bonded refractory shapes, in situ, by mixing an aluminum metal powder, relatively pure silica and a refractory aggregate. The mixes are pressed into shapes and burned at elevated temperatures in a nitriding atmosphere to form the bond.
摘要翻译： 通过混合铝金属粉末，相对纯的二氧化硅和耐火骨料，就地生产氮化物结合的耐火形状的方法。 将混合物压制成形状并在氮化气氛中在升高的温度下燃烧以形成结合。
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公开(公告)号：US4533646A
公开(公告)日：1985-08-06
申请号：US613941
申请日：1984-05-24
CPC分类号： C04B35/65 , C04B35/101 , C04B35/44 , C04B35/66
摘要： This invention relates to a method for producing nitride bonded refractory shapes in which the bonding matrix is formed in situ. The method comprises forming a batch including a coarser portion selected from the group calcined and fused aggregates of alumina, aluminosilicate, and magnesium aluminate spinel and a finer portion consisting essentially of finely divided silicon metal and alumina as well as fines of the above mentioned refractory aggregate needed to achieve the desired screen analysis. The silicon metal and alumina react in the nitriding atmosphere to form a low porosity matrix generally comprising silicon oxynitride with corundum distributed therethrough.
摘要翻译： 本发明涉及一种生产氮化物接合耐火形状的方法，其中键合基体原位形成。 该方法包括形成包括选自氧化铝，铝硅酸盐和铝酸镁尖晶石的煅烧和熔融聚集体的较粗部分的较粗部分，以及基本上由细分散的硅金属和氧化铝组成的较细部分以及上述耐火骨料的细粉 需要实现所需的屏幕分析。 硅金属和氧化铝在氮化气氛中反应形成通常包含硅氮氧化物的低孔隙率基体，其中刚玉分布在其中。
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公开(公告)号：US5028570A
公开(公告)日：1991-07-02
申请号：US538836
申请日：1990-06-15
IPC分类号： C04B35/043 , C04B35/65
CPC分类号： C04B35/65 , C04B35/0435
摘要： A mix for forming a silicon nitride bonded magnesia refractory shape consisting essentially of; for each 100 wt. % thereof at least, about 3 to 20 wt. % of a high purity silicon powder containing no more than about 0.2 wt. % metallic impurities and, correspondingly, 97 to 80 wt. % of a high purity magnesite; and the resultant refractory shape formed after shaping of the mix and nitriding thereof and the method of making such shape.
摘要翻译： 用于形成基本上由...组成的氮化硅粘结的氧化镁耐火形状的混合物; 对于每100重量份 其％至少为约3至20wt。 ％的高纯硅粉含有不超过约0.2wt。 ％的金属杂质，相应地为97〜80wt。 ％的高纯度菱镁矿; 并且其混合和氮化成形后形成的耐火形状和制造这种形状的方法。
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公开(公告)号：US4500644A
公开(公告)日：1985-02-19
申请号：US562770
申请日：1983-12-19
IPC分类号： C04B35/626 , C01B21/082 , C04B35/597 , C04B35/58
CPC分类号： C04B35/597 , C01B21/0826
摘要： Dense sialon grain is produced by briquetting mixtures of micronized silicon and reactive alumina. Sialon powder is produced by ball milling the briquettes after nitriding. The starting mixtures can contain from 10 to 38% reactive alumina with the balance of the mixture micronized silicon. Mixtures made within this range when pressed into dense briquettes and nitrided produce useful sialon grain having minimal free alumina contamination.
摘要翻译： 通过压块微粉化硅和活性氧化铝的混合物生产密集的赛隆颗粒。 硫化铝粉是通过在氮化后球磨球团来生产的。 起始混合物可以含有10至38％的活性氧化铝，余量为混合微粉化硅。 当压入稠密的团块和氮化时，在该范围内制成的混合物产生具有最小游离氧化铝污染物的有用的赛隆颗粒。
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公开(公告)号：US4460528A
公开(公告)日：1984-07-17
申请号：US263390
申请日：1981-05-12
CPC分类号： C04B35/65
摘要： A means for producing nitride bonded refractory shapes, in situ, by mixing an aluminum metal powder, relatively pure silica, crude clay and a refractory aggregate. The mixes are pressed into shapes and burned at elevated temperatures in a nitriding atmosphere to form the bond.
摘要翻译： 通过混合铝金属粉末，相对纯的二氧化硅，粗粘土和耐火骨料，就地生产氮化物结合的耐火形状的方法。 将混合物压制成形状并在氮化气氛中在升高的温度下燃烧以形成结合。
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公开(公告)号：US5188989A
公开(公告)日：1993-02-23
申请号：US127268
申请日：1987-12-01
摘要： An oxidation-resistant carbon-containing refractory shape having on the surface thereof exposed to oxidation an oxidation-resistant glaze coating, said glaze coating consisting essentially of the reaction product of a zinc borosilicate frit and a clay; and the method of forming said coating on a refractory shape comprising applying to at least a portion of the shape an aqueous suspension of a fluxed mix consisting essentially of a zinc borosilicate and a clay, drying said coating, and firing said coated refractory shape at a temperature and for a time sufficient to cause the borosilicate and clay in said mix to react and form a substantially uniform glaze coating.
摘要翻译： 一种抗氧化的含碳耐火形状，其表面上具有耐氧化釉涂层的氧化性，所述釉料基本上由硼硅酸锌玻璃料和粘土的反应产物组成; 以及将所述涂层形成在耐火形状上的方法，其包括将基本上由硼硅酸锌和粘土组成的助熔混合物的水性悬浮液的至少一部分施加到所述涂层上，干燥所述涂层，并将所述涂覆的耐火材料形状在 温度和足以使所述混合物中的硼硅酸盐和粘土反应并形成基本上均匀的釉料涂层的时间。
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10.发明授权Process for manufacturing ultra pure silica and resulting encapsulated products 失效制造超纯二氧化硅和所得封装产品的方法
公开(公告)号：US4810415A
公开(公告)日：1989-03-07
申请号：US905803
申请日：1986-09-10
CPC分类号： C01B33/12 , C01B33/163
摘要： High purity silica powder formed from a sol-gel process is made from a quantity of an industrial grade hydrolizable silicon organometallic substance mixed with a quantity of an industrial grade organic solvent miscible in said organometallic substance and with a quantity of an acidified water having a pH less than 2 to form a solution. The solution is heated, then dried to form a gel, milled, and calcined to form the pure silica powder and the pure powder used to form encapsulated micro-miniature circuits.
摘要翻译： 由溶胶 - 凝胶法形成的高纯二氧化硅粉末由一批工业级可水解硅有机金属物质制成，该物质与一定量的可与所述有机金属物质混溶的工业级有机溶剂和一定量的酸化水 小于2形成解决方案。 将溶液加热，然后干燥以形成凝胶，研磨并煅烧以形成纯二氧化硅粉末和用于形成包封的微型电路的纯粉末。
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