-
公开(公告)号：US4250943A
公开(公告)日：1981-02-17
申请号：US944568
申请日：1978-09-21
CPC分类号： B22C9/04
摘要： A method of manufacturing a mold adapted to be used for casting bodies of fiber-reinforced composites. A model of the body to be cast is prepared and coated with a one-piece dense shell of refractory metallic oxide deposited by plasma or flame spraying and the model is then separated from the shell by conventional physical or chemical treatment.
摘要翻译： 一种适用于纤维增强复合材料铸造体的模具的制造方法。 制备待铸造的模型，并用等离子体或火焰喷涂沉积的难熔金属氧化物的一片致密的外壳涂覆，然后通过常规的物理或化学处理将模型与壳分离。
-
公开(公告)号：US4147201A
公开(公告)日：1979-04-03
申请号：US659014
申请日：1976-02-18
CPC分类号： B22C9/04
摘要： A method of manufacturing a mold adapted to be used for casting bodies of ber-reinforced composites. A model of the body to be cast is prepared and coated with a one piece dense shell of refractory metallic oxide deposited by plasma or flame spraying and the model is then separated from the shell by conventional physical or chemical treatment.
摘要翻译： 一种适用于纤维增强复合材料铸造体的模具的制造方法。 制备待铸造的模型，并用等离子体或火焰喷涂沉积的难熔金属氧化物的一片致密的外壳涂覆，然后通过常规物理或化学处理将模型与壳分离。
-
公开(公告)号：US4459161A
公开(公告)日：1984-07-10
申请号：US307281
申请日：1981-09-30
CPC分类号： C30B21/02 , B22D23/06 , B22D27/045 , C22C47/08
摘要： A method and apparatus for manufacturing bars made of an alloy by unidirectional solidification.The mold is moved relative to a hot source and a cold source disposed below the hot source. The relative positions of the two sources as well as their efficiency and the displacement speed of the mold are set so that there is established within the alloy contained in the mold a planar solidification front with a high thermal gradient at the level of the front, and so that there is produced an orientation of the structure of the alloy which is perpendicular to the solidification front. During the whole duration of the solidification, the mold is fed with alloy powder having the required nominal composition at the rate corresponding to the quantity of alloy solidified per unit of time.
摘要翻译： 用于通过单向凝固制造由合金制成的棒的方法和装置。 模具相对于设置在热源下方的热源和冷源移动。 两个源的相对位置以及它们的效率和模具的位移速度被设定为使得在模具中所包含的合金内部建立了在前部水平处具有高热梯度的平面凝固正面，以及 使得产生与凝固前沿垂直的合金的结构的取向。 在固化的整个持续时间期间，以对应于每单位时间固化的合金量的速度，向模具中加入具有所需标称组成的合金粉末。
-
4.发明授权
公开(公告)号：US4307769A
公开(公告)日：1981-12-29
申请号：US104833
申请日：1979-12-18
CPC分类号： C30B21/02 , B22D23/06 , B22D27/045 , C22C47/08
摘要： A method and apparatus for manufacturing bars made of an alloy by unidireonal solidification. The mold is moved relative to a hot source and a cold source disposed below the hot source. The relative positions of the two sources as well as their efficiency and the displacement speed of the mold are set so that there is established within the alloy contained in the mold a planar solidification front with a high thermal gradient at the level of the front, and so that there is produced an orientation of the structure of the alloy which is perpendicular to the solidification front. During the whole duration of the solidification, the mold is fed with alloy powder having the required nominal composition at the rate corresponding to the quantity of alloy solidified per unit of time.
摘要翻译： 用于通过单向凝固制造由合金制成的棒的方法和装置。 模具相对于热源和设置在热源下方的冷源移动。 两个源的相对位置以及它们的效率和模具的位移速度被设定为使得在模具中所包含的合金内部建立了在前部水平处具有高热梯度的平面凝固正面，以及 使得产生与凝固前沿垂直的合金的结构的取向。 在固化的整个持续时间期间，以对应于每单位时间固化的合金量的速度，向模具中加入具有所需标称组成的合金粉末。
-
5.发明授权
公开(公告)号：US3985582A
公开(公告)日：1976-10-12
申请号：US489482
申请日：1974-07-18
申请人： Herve Bibring , Jean-Pierre Trottier , Tasadduq Khan , Jean-Francois Stohr , Maurice Rabinovitch
发明人： Herve Bibring , Jean-Pierre Trottier , Tasadduq Khan , Jean-Francois Stohr , Maurice Rabinovitch
IPC分类号： C22C47/00 , C21D6/00 , C22C19/00 , C22C19/07 , C22C38/00 , C30B21/02 , B22D25/00 , C22C19/05
CPC分类号： C30B21/02
摘要： Composite materials which comprise a matrix of a complex refractory superoy and embedded in said matrix filiform particles of carbide and, in the matrix, a fine precipitation of carbide of the same nature as the one of the filiform particles.
-
6.发明授权Multi-phase metallic systems of the .gamma.,.gamma.', NBC type with improved structural stability 失效具有改善结构稳定性的γ，γ'，NBC型多相金属体系
公开(公告)号：US4318756A
公开(公告)日：1982-03-09
申请号：US93118
申请日：1979-11-13
CPC分类号： C22C49/08 , C30B21/02 , Y10T428/12465
摘要： A refractory composite material has a nickel-based matrix, containing chromium, hardened by elements such as W in solid solution and hardened by precipitation of a .gamma.'(Ni,Xi).sub.3 (Al,Yi) phase, Xi representing elements different from Ni and Yi elements different from Al which the matrix may contain and which are respectively substituted for Ni and Al atoms in the formation of the .gamma.' precipitate, and with aligned monocrystalline fibers of a transition metal monocarbide, preferably niobium monocarbide, imbedded in said matrix, as obtained by unidirectional solidification. The chromium proportion of the material is maintained at a value lower than that from which the chromium carbide of formula Cr.sub.23 C.sub.6 is formed in the matrix at the expense of the niobium carbide of the reinforcement fibers at the operating temperatures foreseen for the material.
摘要翻译： 难熔复合材料具有含有铬的镍基基质，固溶W中的元素固化并通过γ'（Ni，Xi）3（Al，Yi）相沉淀而硬化，表示不同于Ni的元素 和不同于Al的元素，其中基体可以含有，并且分别代替形成γ'沉淀物中的Ni和Al原子，并且嵌入在所述基质中的过渡金属单碳化物，优选铌单碳化物的排列单晶纤维， 如通过单向凝固获得的。 材料的铬比例保持在低于在基体中形成式Cr23C6的碳化铬的值，该值是在材料预期的工作温度下以增强纤维的碳化铌为代价的。
-
7.发明授权Process and apparatus for the molding of shaped articles from a composite metallic refractory material 失效用于从复合金属耐火材料成型成型制品的方法和装置
公开(公告)号：US4175609A
公开(公告)日：1979-11-27
申请号：US822261
申请日：1977-08-05
CPC分类号： C30B21/02 , B22D27/045
摘要： Disclosed are a method and apparatus for molding articles in which a highly planar solidification front is desired. A charge of liquefied alloy to be molded into the desired article is placed in a mold and submerged in a heat-exchange bath of liquid metal forming a cylindrical column which is heated in an upper portion and cooled in a lower portion to define an intermediate level at which the bath temperature corresponds to the melting point of the alloy. Upon a progressive lowering of the mold within the bath, a solidification front formed in the alloy at that intermediate level advances from the bottom to the top of the charge.
摘要翻译： 公开了一种用于模制需要高度平坦的凝固前沿的制品的方法和装置。 要成型为所需物品的液化合金装料被放置在模具中并浸没在形成圆柱形的液态金属的热交换浴中，该圆柱体在上部被加热并在下部冷却以限定中间水平 浴温度对应于合金的熔点。 在浴中逐渐降低模具之后，在该中间层处形成的合金中的凝固前沿从电荷的底部向顶部前进。
-
公开(公告)号：US4043841A
公开(公告)日：1977-08-23
申请号：US608346
申请日：1975-08-27
申请人： Herve Bibring , Jean-Pierre Trottier , Tasadduq Khan , Maurice Rabinovitch , Jean-Francois Stohr
发明人： Herve Bibring , Jean-Pierre Trottier , Tasadduq Khan , Maurice Rabinovitch , Jean-Francois Stohr
CPC分类号： C22C19/056 , C30B21/02 , Y10T428/12444
摘要： A refractory composite material usable in making gas-turbine blades for aviation applications. The composite material comprises a nickel-based superalloy matrix containing cobalt, aluminum in the form of a Ni.sub.3 Al precipitate, and tungsten, and a reinforcing phase of oriented monocrystalline niobium carbide fibers formed in situ during production, by unidirectional solidification. The composition of the composite material by weight expressed in percent is:Co -- 20-30%Cr -- 6-15%W -- 7-10%Al -- 3-6%Nb -- 4-6%C -- 0.4-0.65%Ni balance to 100.
摘要翻译： 可用于制造用于航空应用的燃气涡轮叶片的耐火复合材料。 该复合材料包括含有钴，Ni3Al沉淀形式的铝和钨的镍基超级合金基体，以及通过单向凝固在生产过程中原位形成的取向单晶碳化铌纤维的增强相。 按百分比表示的复合材料的组成为：
-
公开(公告)号：US3973750A
公开(公告)日：1976-08-10
申请号：US593669
申请日：1975-07-07
申请人： Maurice Rabinovitch , Herve Bibring
发明人： Maurice Rabinovitch , Herve Bibring
CPC分类号： B22D27/045 , B22C23/02 , C30B21/02
摘要： A mold for obtaining metallic parts with an orientated crystalline struct by the directed solidification of an alloy is disclosed. The mould comprises a body of refractory mold that is a good heat conductor and on the inner wall of said body is provided a chemically protective lining of dense refractory metal oxide, with a high degree of purity, deposited on said body by blowpipe projection as a thin non-porous layer. The thickness of the metal oxide lining is in the order of a tenth of a millimeter to five tenths of a millimeter, the oxide being choosen in the group constituted by aluminium oxide, zirconium oxide, magnesium oxide and thorium dioxide with a degree of purity at least equal to 99.5 %.
摘要翻译： 公开了一种用于通过合金的定向固化获得具有取向晶体结构的金属部件的模具。 模具包括耐火模具体，其是良好的热导体，并且在所述主体的内壁上设置有致密难熔金属氧化物的化学防护衬里，其具有高纯度，通过吹管投影沉积在所述主体上，作为 薄无孔层。 金属氧化物衬里的厚度为十分之一毫米至十五分之一毫米的量级，氧化物选自氧化铝，氧化锆，氧化镁和二氧化钍中的纯度为 最低等于99.5％。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.018 秒)
