Method and apparatus for temperature-stabilizing a joint
    1.
    发明授权
    Method and apparatus for temperature-stabilizing a joint 失效
    温度稳定接头的方法和装置

    公开(公告)号:US06171009B2

    公开(公告)日:2001-01-09

    申请号:US09175707

    申请日:1998-10-20

    Abstract: A joint between materials having disparate coefficients of thermal expansion (CTE) is compensated by a collar which extends a dimension of that one of the different materials which has the lesser CTE. A set of different collars provides compensation for sheets of material of different thicknesses when used with fasteners of a given material. The joint is assembled by selecting the sheets of various thicknesses to be juxtaposed, applying the fastener with a compensation collar corresponding to each one of the different sheets, and tightening the joint.

    Abstract translation: 具有不同热膨胀系数(CTE)的材料之间的接头由一个套圈补偿,该套环延伸了具有较小CTE的不同材料中的一个的尺寸。 当与给定材料的紧固件一起使用时,一组不同的项圈可以对不同厚度的材料片材进行补偿。 通过选择要并置的各种厚度的片材来组装接头,将紧固件应用于与各个不同片材相对应的补偿轴环,并且紧固接头。

    Screw mounting installation and apparatus
    2.
    发明授权
    Screw mounting installation and apparatus 失效
    螺丝安装和装置

    公开(公告)号:US06626603B2

    公开(公告)日:2003-09-30

    申请号:US10095146

    申请日:2002-03-11

    Abstract: A method is described for installing a stud to extend above a surface of a composite portion of a tank or other structure subject to the pressure of cryogenic fluid, so that another structure can be attached to the stud. The method includes drilling a through aperture at the location of the stud, and installing a threaded insert near the outer surface of the aperture, if not already installed. A metal bolt having a CTE less than that of the composite material is selected. The bolt has an unthreaded shank portion and a threaded portion. The length of the bolt exceeds the length of the projecting stud and the thickness of the composite. The bolt is assembled with a commercial k seal, a collar having a CTE much less than that of the bolt, and another k seal. The seals mate with corresponding frustoconical surfaces of the composite and of the collar, and when the bolt is properly torqued to a preload, prevent leakage. The assembly and torquing may be done at room temperature, and the CTE compensation aspects of the combination results in maintaining a preload over the entire range of temperatures. The preload not only aids in maintaining a seal, but acts to prevent delamination of the composite (210).

    Abstract translation: 描述了一种用于安装螺柱以在经受低温流体的压力的罐或其他结构的复合部分的表面上方延伸的方法,使得另一结构可以附接到螺柱。 该方法包括在螺栓的位置处钻孔通孔,并且如果还没有安装,则在孔的外表面附近安装螺纹插入件。 选择CTE小于复合材料的CTE的金属螺栓。 螺栓具有无螺纹的柄部和螺纹部。 螺栓的长度超过突出螺柱的长度和复合材料的厚度。 螺栓装配有商业k密封件,具有比螺栓的CTE小得多的CTE的套环和另一个k密封件。 密封件与复合材料和套环的相应截头圆锥表面配合,并且当螺栓适当地扭转到预载荷时,防止泄漏。 组装和扭转可以在室温下进行,并且组合的CTE补偿方面导致在整个温度范围内保持预加载。 预加载不仅有助于保持密封,而且起到防止复合材料(210)分层的作用。

    Screw mounting installation method
    3.
    发明授权
    Screw mounting installation method 失效
    螺丝安装方式

    公开(公告)号:US06668441B1

    公开(公告)日:2003-12-30

    申请号:US09690964

    申请日:2000-10-18

    Abstract: A method is described for installing a stud to extend above a surface of a composite portion of a tank or other structure subject to the pressure of cryogenic fluid, so that another structure can be attached to the stud. The method includes drilling a through aperture at the location of the stud, and installing a threaded insert near the outer surface of the aperture, if not already installed. A metal bolt having a CTE less than that of the composite material is selected. The bolt has an unthreaded shank portion and a threaded portion. The length of the bolt exceeds the length of the projecting stud and the thickness of the composite. The bolt is assembled with a commercial k seal, a collar having a CTE much less than that of the bolt, and another k seal. The seals mate with corresponding frustoconical surfaces of the composite and of the collar, and when the bolt is properly torqued to a preload, prevent leakage. The assembly and torquing may be done at room temperature, and the CTE compensation aspects of the combination results in maintaining a preload over the entire range of temperatures. The preload not only aids in maintaining a seal, but acts to prevent delamination of the composite (210).

    Abstract translation: 描述了一种用于安装螺柱以在经受低温流体的压力的罐或其他结构的复合部分的表面上方延伸的方法,使得另一结构可以附接到螺柱。 该方法包括在螺栓的位置处钻孔通孔,并且如果还没有安装,则在孔的外表面附近安装螺纹插入件。 选择CTE小于复合材料的CTE的金属螺栓。 螺栓具有无螺纹的柄部和螺纹部。 螺栓的长度超过突出螺柱的长度和复合材料的厚度。 螺栓装配有商业k密封件,具有比螺栓的CTE小得多的CTE的套环和另一个k密封件。 密封件与复合材料和套环的相应截头圆锥表面配合,并且当螺栓适当地扭转到预载荷时,防止泄漏。 组装和扭转可以在室温下进行,并且组合的CTE补偿方面导致在整个温度范围内保持预加载。 预加载不仅有助于保持密封,而且起到防止复合材料(210)分层的作用。

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