An investment casting technique for the formation of metal matrix composite bodies and products produced thereby
    1.
    发明公开
    An investment casting technique for the formation of metal matrix composite bodies and products produced thereby 失效
    与丢失形式用于生产具有金属基质复合体及其产品的方法。

    公开(公告)号:EP0369929A1

    公开(公告)日:1990-05-23

    申请号:EP89630174.4

    申请日:1989-09-28

    CPC classification number: B22F3/1275 B22F2998/00 C22C1/1036 B22F3/1137

    Abstract: The present invention relates to a novel method for forming metal matrix composite bodies and the novel pro­ducts produced therefrom. A negative shape or cavity, which is complementary to the desired metal matrix composite body to be produced, is first formed. The formed cavity is thereafter filled with a permeable mass of filler material (7). Molten matrix metal (8) is then induced to sponta­neously infiltrate the filled cavity. Particularly, an in­filtration enhancer and/or an infiltration enhancer precur­sor and/or an infiltrating atmosphere are also in communi­cation with the filler material (7), at least at some point during the process, which permits the matrix metal (8) when made molten, to spontaneously infiltrate the permeable mass of filler material (7), which at some point during the processing, may become self-supporting. In a preferred em­bodiment, cavities can be produced by a process which is similar to the so-called lost-wax process.

    Abstract translation: 本发明涉及用于形成金属基质复合体,并从那里产生的新产品的新方法。 负形状或空腔,所有这些是互补的所需金属基质复合体将被产生的,首先形成。 所形成的空腔此后填充有填充材料(7)的可渗透体。 然后熔融基质金属(8)被诱导的自发渗入填充的空腔。 特别地,在渗透增强剂和/或渗透增强剂前体和/或在渗透气氛因此处于与填料相联系(7),至少在过程期间的某一时刻,这允许基质金属(8)当由熔融 下自发渗透填料的可渗透体(7),其在所述处理期间的某一时刻,有可能成为自支撑的。 在一个优选实施例,空腔可以通过一个过程的所有其类似于所谓的失蜡工艺来制造。

    A method for forming metal matrix composite bodies with a dispersion casting technique and products produced thereby
    3.
    发明公开
    A method for forming metal matrix composite bodies with a dispersion casting technique and products produced thereby 失效
    通过分散铸造及其制品形成具有金属基质保持复合体的方法。

    公开(公告)号:EP0368788A1

    公开(公告)日:1990-05-16

    申请号:EP89630172.8

    申请日:1989-09-28

    Abstract: The present invention relates to a novel method for forming metal matrix composite bodies. A permeable mass of filler material (1) is spontaneously infiltrated by a mol­ten matrix metal (3). Particularly, an infiltration enhan­cer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with the filler material (1) at least at some point during the process, which permits molten matrix metal (3) to sponta­neously infiltrate the filler material (1). After infiltra­tion has been completed to a desired extent, additional matrix metal is added to that matrix metal (3) which has spontaneously infiltrated the filler material (1) to re­sult in a suspension of filler material (1) and matrix me­tal (3), said suspension having a lower volume fraction of filler relative to matrix metal. The matrix metal (3) then can be permitted to cool in situ or the mixture of matrix metal and filler material can be poured into a second con­tainer as a casting process to form a desired shape which corresponds to the second container. However, the formed suspension, whether cast immediately after being formed or cooling and thereafter heating and casting, can be pour cast into a desired shape.

    Abstract translation: 本发明涉及用于形成金属基质复合体的新方法。 填充材料(1)的可渗透体自发通过熔融基质金属(3)渗透。 特别地,在渗透增强剂和/或渗透增强剂前体和/或在渗透气氛与填料相联系(1)至少在这个过程中,使熔融基质金属(3)自发渗入填料中的某一时刻 材料(1)。 浸润已完成到所需的程度后,添加另外的基质金属被加入到没有基质金属(3),其具有自发渗入填充材料(1)以得到的悬浮液填充材料(1)和基质金属(3) 所述具有相填料的下部体积分数悬浮至基质金属。 基质金属(3)然后可被允许在原位或基质金属和填料的混合物冷却可倒入第二容器作为铸造工艺,以形成对应于第二容器中的所需的形状。 然而,所形成的悬浮液中,无论是正在形成或冷却,然后加热并铸造,可倾浇铸成所希望的形状后,立即铸造。

    A method of thermo-forming a novel metal matrix composite body
    9.
    发明公开
    A method of thermo-forming a novel metal matrix composite body 失效
    Verfahren zum Thermoformen von Verbundwerkstoff-Körpern。

    公开(公告)号:EP0368789A1

    公开(公告)日:1990-05-16

    申请号:EP89630175.1

    申请日:1989-09-28

    Abstract: The present invention relates to the formation of a metal matrix composite body by a spontaneous infiltration technique and thereafter thermo-forming the produced metal matrix composite body. Particularly, an infiltration enhan­cer and/or an infiltration enhancer precursor and/or an in­filtrating atmosphere are in communication with a filler material (2) or a preform, at least at some point during the process, which permits molten matrix metal to sponta­neously infiltrate the filler material (2) or preform. After formation of the metal matrix composite body, the body is subjected to a thermo-forming technique such as rolling, extruding, die casting, pressing, etc.

    Abstract translation: 本发明涉及通过自发渗透技术形成金属基质复合体,然后对所制备的金属基复合体进行热成型。 特别地,渗透增强剂和/或渗透增强剂前体和/或渗透气氛至少在该过程中的某一点处与填料(2)或预型体连通,这允许熔融基质金属自发渗入 填料(2)或预制件。 在形成金属基复合体后,对其进行轧制,挤压,压铸,压制等热成型技术。

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