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    • 6. 发明公开
    • Verfahren zur Herstellung von ringförmigen Strukturen aus Faserverbundthermoplasten
    • Verfahren zur Herstellung vonringförmigenStrukturen aus Faserverbundthermoplasten
    • EP1905572A1
    • 2008-04-02
    • EP06020552.3
    • 2006-09-29
    • ETH Zürich
    • Pini, NiccolòZaugg, Niklaus
    • B29C70/32B29C70/42B29C70/46B29C70/20
    • B29C70/462B29C70/205B29C70/32B29C70/42B29L2031/3091B29L2031/32B29L2031/7096
    • Eine ringförmigen Struktur (18) wird aus einem bandförmigen Halbzeug aus Faserverbundthermoplast wie folgt hergestellt:;
      A das Halbzeug wird - zu einem Ring (18.1) geformt - in einer ein ringförmiges Aussenwerkzeug (11) und ein ringförmiges Innenwerkzeug (10) aufweisenden Vorrichtung in einem radialen Bereich (13) des Ringes (18.1) aufgeheizt;
      B der aufgeheizte Bereich des Ringes (18.1) wird rotierend einem durch das Innen- und Aussenwerkzeug (10, 11) gebildetem Drucksegment (14) zugeführt;
      C der aufgeheizte Bereich des Rings (18.1) wird zwischen dem Innen- und dem Aussenwerkzeug unter Druck im Drucksegment (14) gewalzt;
      D noch im Drucksegment (14) befindlich wird der gewalzte Bereich des Ringes in einer Kühlzone (15) abgekühlt.
      Auf diese weise ist ein Verfahren geschaffen mit dem hochfeste und nahtlose ringförmige Strukturen wie z.B. Radfelgen (18) hergestellt werden können.
    • 扁平坯料(热塑性复合材料)形成环(18.1)。 它在包括内部和外部环形部分(10,11)的旋转模具中被加热。 材料通过加热区域(13)和压缩区域(14),在该区域通过模具的内部和外部部分滚动。 在压缩区域中,轧制区域进入冷却区域(15)。 在加热之前,将材料作为一系列平坦部分加入到模具中。 环通过将它们相继地放置在模具中而形成。 机器人把这些部分放在模具里。 为了制作坯件,首先将材料条切成多个部分,然后将它们连续地放置在环中。 或者,通过缠绕在条状坯料上形成环。 切口首先在坯料或材料部分制造,而不是将其完全分开或分成几部分。 切割部分增强纤维在空白。 环坯在区域(13)中加热,或整个环(18.1)被加热。 为了获得更大的压缩区域,内部模制环(10)具有履带段构造。 这具有引导毛虫对更长时间的压缩区施加压力的指导。 内模的中心固定,外模旋转。 或者,外模的中心是固定的,并且内模在外模内旋转。
    • 8. 发明公开
    • Method of making shaped ceramic composites with the use of a barrier
    • 使用障碍物制作形状陶瓷复合材料的方法
    • EP0245193A3
    • 1988-03-23
    • EP87630076
    • 1987-04-30
    • LANXIDE TECHNOLOGY COMPANY, LP.
    • Newkirk, Marc S.Kantner, Robert C.
    • C04B35/65C04B35/71C04B35/80
    • B29C43/10B29C2043/3652B29L2031/7096C04B35/652C04B35/71C04B35/80
    • In the present invention, there is provided a method for producing a self-supporting ceramic body by the oxidation of a parent metal to form a polycrystalline ceramic material consisting essentially of the oxidation reaction product of said parent metal with an oxidant, including a vapor-phase oxidant, and optionally one or more metallic constituents. The method comprises the steps of providing at least a portion of said parent metal with a barrier means at least partially spaced from said parent metal for establishing at least one surface of the ceramic body, and heating said parent metal to a temperature above its melting point but below the melting point of the oxidation reaction product to form a body of molten metal. At that temperature, the molten metal is reacted with the oxidant, thus forming the oxidation reaction product. At least a portion of the oxidation reaction product is maintained in contact with and between the molten metal and oxidant to transport the molten metal through the oxidation reaction product toward the barrier means and into contact with the oxidant so that the oxidation reaction product continues to form at the interface between the oxidant and previously formed oxidation reaction product optionally leaving metal dispersed through the polycrystalline material. The reaction is continued to the barrier means to produce a ceramic body having the surface established by the barrier means. A composite is formed by superimposing a barrier onto a filler material, such as a preform, and infiltrating the filler with the polycrystalline ceramic matrix grown to the barrier means.
    • 9. 发明公开
    • Shaped ceramic composites and methods of making the same
    • KeramischeVerbundformkörpersowie Verfahren zu ihrer Herstellung。
    • EP0245192A2
    • 1987-11-11
    • EP87630075.7
    • 1987-04-30
    • LANXIDE TECHNOLOGY COMPANY, LP.
    • Newkirk, Marc S.Zwicker, Shirley L.
    • C04B35/65C04B35/71C04B35/80
    • C04B35/652B29K2303/06B29L2031/7096C04B35/71C04B35/80
    • A method of producing self-supporting ceramic composite bodies of desired shaped by infiltrating a permeable preform with polycrystalline matrix material consisting essentially of an oxidation reaction product obtained by oxidation of a parent metal precursor, such as aluminum, and optionally containing therein metallic constituents. The composite body is formed by contacting a zone of a permeable preform, having at least one defined surface boundary spaced from said contacting zone, with a body of molten metal which is reacted with a suitable vapor-phase oxidant to form an oxidation reaction product. Within a certain temperature region, and optionally with one or more dopants in or on the parent metal or said permeable preform, molten parent metal migrates through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow into the preform toward said defined surface boundary so as to infiltrate the preform up to said defined surface boundary, and provide the composite structure of desired geometry.
    • 通过用多晶基质材料渗透可渗透的预制件来制备所需成型的自支撑陶瓷复合体的方法,所述多晶基体材料主要由氧化母体金属前体如铝形成的氧化反应产物组成,并且任选地含有金属组分。 复合体是通过将具有至少一个与所述接触区隔开的限定表面边界的可渗透预制件的区域与熔融金属体接触而形成的,该主体与合适的气相氧化剂反应以形成氧化反应产物。 在一定温度范围内,并且任选地在母体金属或所述可渗透预制件中或上方具有一种或多种掺杂剂,熔融母体金属通过先前形成的氧化反应产物迁移到与氧化剂接触,导致氧化反应产物生长到预制件 朝向所述限定的表面边界,以便将预型件渗透到所述限定的表面边界,并提供所需几何形状的复合结构。