Molybdenum disilicide matrix composites reinforced with continuous
ceramic fibers
    3.
    发明授权
    Molybdenum disilicide matrix composites reinforced with continuous ceramic fibers 失效
    二硅化钼基复合材料用连续陶瓷纤维增强

    公开(公告)号:US5292691A

    公开(公告)日:1994-03-08

    申请号:US819720

    申请日:1992-01-13

    IPC分类号: C04B35/58 C04B35/80

    摘要: A molybdenum disilicide composite comprising ceramic reinforcing fibers and sufficient particulate silicon carbide, silicon nitride, boron nitride or silica to modify the coefficient of thermal expansion of the matrix to match that of the fiber is found to have improved high temperature strength, creep resistance, toughness, and resistance to matrix cracking during thermal cycling.

    摘要翻译: 发现包含陶瓷增强纤维和足够的颗粒状碳化硅,氮化硅,氮化硼或二氧化硅的二硅化钼复合物,以改变基体的热膨胀系数以匹配纤维的热膨胀系数,具有改善的高温强度,抗蠕变性,韧性 ,并且在热循环期间耐矩阵裂化。

    Molybdenum disilicide matrix composites reinforced with refractory metal
fibers
    4.
    发明授权
    Molybdenum disilicide matrix composites reinforced with refractory metal fibers 失效
    用难熔金属纤维增强的二硅化硅基体复合材料

    公开(公告)号:US5281565A

    公开(公告)日:1994-01-25

    申请号:US819558

    申请日:1992-01-13

    IPC分类号: C04B35/58 C04B35/76

    摘要: A molybdenum disilicide composite comprising refractory metal reinforcing fibers and sufficient particulate silicon carbide, silicon nitride, boron nitride, or silica to modify the coefficient of thermal expansion of the matrix to match that of the fiber is found to have improved high temperature strength, creep resistance, toughness, and resistance to matrix cracking during thermal cycling.

    摘要翻译: 发现包含难熔金属增强纤维和足够的颗粒状碳化硅,氮化硅,氮化硼或二氧化硅的二硅化钼复合物,以改变基体的热膨胀系数以匹配纤维的热膨胀系数,具有改善的高温强度,抗蠕变性 ,韧性和耐热矩循环中的基体开裂。

    Clinch Pin Fastener
    7.
    发明申请
    Clinch Pin Fastener 有权
    针扣紧固件

    公开(公告)号:US20120324978A1

    公开(公告)日:2012-12-27

    申请号:US13608209

    申请日:2012-09-10

    IPC分类号: B21J5/02

    CPC分类号: B21K1/60 F16B19/06

    摘要: A clinch-type fastener is formed by simultaneously creating an undercut during the same forging that creates the head and displacer of the fastener. A fastener blank is compressed end-to-end between top and bottom dies whereby the axial compression of a blank causes the outward bulging of the shank at its midline. Simultaneously, a tapered end point and a tangential interference band are formed provided by a curvilinear-shaped bulge in the shank. As the bulge is formed an undercut is created between the bulge and a shoulder which extends downwardly from a head of the fastener. This method of formation and the fastener produced thereby are particularly suited to the manufacture of small clinch pins having a diameter in the range of 1.0 mm.

    摘要翻译: 在相同的锻造期间同时产生底切形成夹紧型紧固件,其形成紧固件的头部和置换器。 紧固件坯料在顶部和底部模具之间端对端地压缩,由此坯件的轴向压缩导致柄部在其中线处的向外膨胀。 同时,通过柄部中的曲线形凸起形成锥形端点和切向干涉带。 当凸起形成时,在凸起和从紧固件的头部向下延伸的肩部之间产生底切。 这种形成方法和由此产生的紧固件特别适用于制造直径在1.0mm范围内的小型针销。