-
1.发明授权Method of cutting using silicon carbide whisker reinforced ceramic cutting tools 失效使用碳化硅晶须加固陶瓷切割工具切割方法
公开(公告)号：US4789277A
公开(公告)日：1988-12-06
申请号：US161410
申请日：1988-02-23
CPC分类号： B23B27/148 , C04B35/80 , B23B2228/61 , Y10T407/27 , Y10T408/03 , Y10T408/78 , Y10T409/303752 , Y10T409/400175 , Y10T409/50082 , Y10T82/10 , Y10T83/04
摘要： Cutting tools are disclosed which are comprised of composite bodies comprising a ceramic matrix reinforced by ceramic whiskers. The ceramic matrix may be alumina or silicon nitride, and may contain toughening components. The whiskers are preferably silicon carbide, but may be other known ceramic whiskers. Whisker content in the composite is 2-40%, with higher contents generally used for tools when the expected service involves interrupted cutting and lower contents generally used for continuous cutting tools.
摘要翻译： 公开了包括由陶瓷晶须增强的陶瓷基体的复合体构成的切削工具。 陶瓷基质可以是氧化铝或氮化硅，并且可以含有增韧组分。 晶须优选为碳化硅，但也可以是其他已知的陶瓷晶须。 复合材料中的晶须含量为2-40％，当期望的服务包括中断切割和通常用于连续切割工具的较低内容物时，通常使用较高的内容。
-
2.发明授权Apparatus and method for forming a sealed outer ring for ceramic regenerator 失效用于形成用于陶瓷再生器的密封外圈的装置和方法
公开(公告)号：US3938923A
公开(公告)日：1976-02-17
申请号：US466394
申请日：1974-05-02
CPC分类号： B28B1/26
摘要： In the formation of cylindrically shaped heat regenerators from ceramic honeycomb structures for use in gas turbine engines, a gas-impervious seal of the peripheral honeycomb cells and a high strength outer ring are formed simultaneously in an apparatus which provides for surrounding the outer wall of the honeycomb structure with a castable ceramic composition suitable for forming the outer ring, contacting a peripheral area of the upper surface of the honeycomb structure defining a predetermined number of peripheral cell openings with a (different) ceramic slurry composition, evacuating the honeycomb cells whose openings are contacted with the slurry composition through corresponding openings in the lower surface of the honeycomb structure in order to promote flow of the slurry into the evacuated cells, thereby forming a gas impervious seal of these peripheral cells, while simultaneously vibrating the honeycomb structure and castable composition in order to promote flow and intimate contact of the castable composition with the outer wall of the structure, thereby to form an outer adherent layer of the castable composition on the wall of the structure. After drying, the honeycomb structure with the filled peripheral cells and the outer adherent layer of ceramic may be fired in the conventional manner to convert the structure to a unified ceramic regenerator having a sealed outer ring.
摘要翻译： 在用于燃气涡轮发动机的陶瓷蜂窝结构体形成圆柱形的热交换器中，周边蜂窝单元的不透气密封和高强度外圈同时形成在一个装置中， 蜂窝结构，其具有适于形成外环的可浇铸陶瓷组合物，使蜂窝结构的上表面的周边区域与（不同的）陶瓷浆料组合物形成预定数量的外围电池开口，将其开口为 通过蜂窝结构体的下表面中的相应开口与浆料组合物接触，以促进浆料流入抽真空室中，从而形成这些周边细胞的不透气密封，同时使蜂窝结构和浇注组合物振动 c促进流动和亲密c 可浇注组合物与结构的外壁的接合，从而在结构的壁上形成可浇铸组合物的外部粘附层。 干燥后，具有填充的周边电池的蜂窝结构体和陶瓷的外部粘附层可以以常规方式烧结，将结构转变成具有密封外圈的统一的陶瓷再生器。
-
公开(公告)号：US5396788A
公开(公告)日：1995-03-14
申请号：US940617
申请日：1992-09-04
摘要： The present invention relates to improved materials for fabricating can bodies. In particular, the present invention relates to can tooling components fabricated from whisker-reinforced silicon nitride having from about 5 to about 15 weight percent whiskers with an average diameter of at least about 0.75 micrometers. The material preferably has a thermal expansion coefficient of less than about 3.5.times.10.sup.-6 per .degree.C. and a friction coefficient of from about 0.20 to about 0.24. The present invention also provides a method for reducing the trim height of can bodies formed using a can tooling apparatus.
-
4.发明授权Composite ceramic cellular structure and heat recuperative apparatus incorporating same 失效复合陶瓷细胞结构和结合其的热回收装置
公开(公告)号：US4130160A
公开(公告)日：1978-12-19
申请号：US726950
申请日：1976-09-27
CPC分类号： F28F21/04 , F28D9/0037 , Y10S165/392
摘要： Layered composite cross-flow ceramic recuperators having minimal leakage between layers and consequent high efficiencies are utilized for industrial waste heat recovery in an apparatus in which the ceramic recuperator is surrounded by a metallic housing adapted for coupling to the metallic fittings of existing furnaces, calciners, ovens and preheaters. The ceramic recuperators are formed from stacks of bi-sectioned ribbed layers, the sections of each layer being sealed together to minimize leakage of the heat transfer fluids between layers, and thus to increase the efficiency of the heat transfer.
摘要翻译： 在其中陶瓷换热器由金属壳体包围的设备中用于工业废热回收的工业废热回收中，层间复合交叉流层陶瓷回热器具有最小的渗漏和随之而来的高效率，其中金属壳体适于与现有的炉子，煅烧器， 烤箱和预热器。 陶瓷换热器由双层肋状层的叠层形成，每层的部分被密封在一起以最小化层之间的传热流体的泄漏，从而提高热传递的效率。
-
公开(公告)号：US5477722A
公开(公告)日：1995-12-26
申请号：US403471
申请日：1995-03-13
摘要： The present invention relates to improved materials for fabricating can bodies. In particular, the present invention relates to can tooling components fabricated from whisker-reinforced silicon nitride having from about 5 to about 15 weight percent whiskers with an average diameter of at least about 0.75 micrometers. The material preferably has a thermal expansion coefficient of less than about 3.5.times.10.sup.-6 per .degree.C. and a friction coefficient of from about 0.20 to about 0.24. The present invention also provides a method for reducing the trim height of can bodies formed using a can tooling apparatus.
摘要翻译： 本发明涉及用于制造罐体的改进材料。 特别地，本发明涉及由具有约5至约15重量％的平均直径为至少约0.75微米的晶须的晶须强化氮化硅制成的罐加工部件。 该材料的热膨胀系数优选小于约3.5×10 -6 /℃，摩擦系数约为0.20至约0.24。 本发明还提供一种降低使用罐加工装置形成的罐体的装配高度的方法。
-
公开(公告)号：US4961757A
公开(公告)日：1990-10-09
申请号：US426540
申请日：1989-10-26
CPC分类号： B23B27/148 , C04B35/80 , B23B2228/61
摘要： Cutting tools are disclosed which are comprised of composite bodies comprising a ceramic matrix reinforced by ceramic whiskers. The ceramic matrix may be alumina or silicon nitride, and may contain toughening components. The whiskers are preferably silicon carbide, but may be other known ceramic whiskers. Whisker content in the composite is 2-40%, with higher contents generally used for tools when the expected service involves interrupted cutting and lower contents generally used for continuous cutting tools.
摘要翻译： 公开了包括由陶瓷晶须增强的陶瓷基体的复合体构成的切削工具。 陶瓷基质可以是氧化铝或氮化硅，并且可以含有增韧组分。 晶须优选为碳化硅，但也可以是其他已知的陶瓷晶须。 复合材料中的晶须含量为2-40％，当期望的服务包括中断切割和通常用于连续切割工具的较低内容物时，通常使用较高的内容。
-
公开(公告)号：US4279297A
公开(公告)日：1981-07-21
申请号：US951438
申请日：1978-10-16
CPC分类号： F28F21/04 , F28F9/00 , Y10S165/395
摘要： Cross-flow ceramic recuperators are useful in industrial waste heat recovery in an assembly in which the ceramic recuperator is held by a metallic housing adapted for retrofitting to the metallic fittings of existing furnaces, ovens and preheaters. The housing is characterized by two pairs of opposing apertured plates held against the inlet and outlet faces of the ceramic recuperator by spring biased through-bolts.
摘要翻译： 横流式陶瓷换热器可用于组装中的工业废热回收，其中陶瓷换热器由适于改装现有炉，炉和预热器的金属配件的金属外壳保持。 壳体的特征在于两对相对的有孔板通过弹簧偏压的螺栓固定在陶瓷换热器的入口和出口面上。
-
公开(公告)号：US4200604A
公开(公告)日：1980-04-29
申请号：US614321
申请日：1975-09-17
IPC分类号： B28B1/26
CPC分类号： B28B1/26
摘要： In the formation of cylindrically shaped heat regenerators from ceramic honeycomb structures for use in gas turbine engines, a gas-impervious seal of the peripheral honeycomb cells and a high strength outer ring are formed simultaneously in an apparatus which provides for surrounding the outer wall of the honeycomb structure with a castable ceramic composition suitable for forming the outer ring, contacting a peripheral area of the upper surface of the honeycomb structure defining a predetermined number of peripheral cell openings with a (different) ceramic slurry composition, evacuating the honeycomb cells whose openings are contacted with the slurry composition through corresponding openings in the lower surface of the honeycomb structure in order to promote flow of the slurry into the evacuated cells, thereby forming a gas impervious seal of these peripheral cells, while simultaneously vibrating the honeycomb structure and castable composition in order to promote flow and intimate contact of the castable composition with the outer wall of the structure, thereby to form an outer adherent layer of the castable composition on the wall of the structure. After drying, the honeycomb structure with the filled peripheral cells and the outer adherent layer of ceramic may be fired in the conventional manner to convert the structure to a unified ceramic regenerator having a sealed outer ring.
摘要翻译： 在用于燃气涡轮发动机的陶瓷蜂窝结构体形成圆柱形的热交换器中，周边蜂窝单元的不透气密封和高强度外圈同时形成在一个装置中， 蜂窝结构，其具有适于形成外环的可浇铸陶瓷组合物，使蜂窝结构的上表面的周边区域与（不同的）陶瓷浆料组合物形成预定数量的外围电池开口，将其开口为 通过蜂窝结构体的下表面中的相应开口与浆料组合物接触，以促进浆料流入抽真空室中，从而形成这些周边细胞的不透气密封，同时使蜂窝结构和浇注组合物振动 c促进流动和亲密c 可浇注组合物与结构的外壁的接合，从而在结构的壁上形成可浇铸组合物的外部粘附层。 干燥后，具有填充的周边电池的蜂窝结构体和陶瓷的外部粘附层可以以常规方式烧结，将结构转变成具有密封外圈的统一的陶瓷再生器。
-
9.发明授权
公开(公告)号：US4063856A
公开(公告)日：1977-12-20
申请号：US702539
申请日：1976-07-06
申请人： Chester J. Dziedzic
发明人： Chester J. Dziedzic
摘要： Spherical particulates containing inorganic material are produced by forming a slurry of particles in an aqueous solution of a gellable organic binder, introducing droplets of the slurry into a two-phase liquid containing an upper hydrophobic phase for forming and maintaining the droplets in spherical form, and a lower ionic phase containing divalent or trivalent metal cations for promoting gellation of the organic binder, thereby converting the slurry droplets into substantially self-supporting spheres of particles dispersed in the gelled binder. Upon separation from the two-phase liquid and one or more optional heat treatments to remove the binder, to convert precursors into the desired final inorganic form, or to strengthen or densify the spheres, such spheres are useful, for example, as starting materials for single crystal growth from a melt.
摘要翻译： 含有无机材料的球形颗粒通过在可凝胶的有机粘合剂的水溶液中形成颗粒浆料而制成，将浆料的液滴引入含有上部疏水相的两相液体中，以形成和保持液滴为球形，以及 包含二价或三价金属阳离子的较低离子相，用于促进有机粘合剂的凝胶化，从而将浆液液滴转化成分散在胶凝粘合剂中的基本上自支撑的颗粒团。 在分离两相液体和一种或多种任选的热处理以除去粘合剂时，将前体转化成所需的最终无机形式，或加强或致密化球体，这样的球体可用于例如作为 从熔体中单晶生长。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.012 秒)
