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    • 3. 发明授权
    • Grid sleeve bulge tool
    • 网格套筒凸起工具
    • US4229259A
    • 1980-10-21
    • US950206
    • 1978-10-10
    • Ronald E. VaillWilliam D. Phillips
    • Ronald E. VaillWilliam D. Phillips
    • G21C3/326G21C3/334G21C21/08
    • G21C3/334G21C3/326Y02E30/38Y10T29/4994Y10T29/531
    • An improved grid sleeve bulge tool designed for securing control rod guide tubes to sleeves brazed in a fuel assembly grid. The tool includes a cylinder having an outer diameter less than the internal diameter of the control rod guide tubes. The walls of the cylinder are cut in an axial direction along its length to provide several flexible tines or ligaments. These tines are similar to a fork except they are spaced in a circumferential direction. The end of each alternate tine is equipped with a semispherical projection which extends radially outwardly from the tine surface. A ram or plunger of generally cylindrical configuration and about the same length as the cylinder is designed to fit in and move axially of the cylinder and thereby force the tined projections outwardly when the ram is pulled into the cylinder. The ram surface includes axially extending grooves and plane surfaces which are complimentary to the inner surfaces formed on the tines on the cylinder. As the cylinder is inserted into a control rod guide tube, and the projections on the cylinder placed in a position just below or above a grid strap, the ram is pulled into the cylinder, thus moving the tines and the projections thereon outwardly into contact with the sleeve, to plastically deform both the sleeve and the control rod guide tube, and thereby form four bulges which extend outwardly from the sleeve surface and beyond the outer periphery of the grid peripheral strap. This process is then repeated at the points above the grid to also provide for outwardly projecting surfaces, the result being that the grid is accurately positioned on and mechanically secured to the control rod guide tubes which extend the length of a fuel assembly.
    • 一种改进的网格套筒凸出工具,设计用于将控制杆导向管固定在钎焊在燃料组件网格中的套管上。 该工具包括具有小于控制杆导管的内径的外径的圆柱体。 圆柱体的壁沿其长度沿轴向切割以提供若干柔性齿或韧带。 除了它们沿周向间隔开之外,这些叉类似于叉。 每个交替齿的末端配备有从齿表面径向向外延伸的半球形突起。 大致圆柱形构造并且与圆柱体大致相同长度的柱塞或柱塞被设计成装配在气缸的轴向并沿轴向移动,并且由此当压头拉入气缸时将着陆的突起向外强制。 冲头表面包括轴向延伸的凹槽和与形成在圆筒上的齿上的内表面互补的平面。 当气缸插入控制杆导管中时,气缸上的突起放置在网格带正下方或上方的位置,柱塞被拉入气缸,从而将齿和突出物向外移动以与 使套筒和控制杆引导管塑性变形,从而形成从套筒表面向外延伸并且超过网格外围带的外周边的四个凸起。 然后在网格上方的点处重复该过程,以提供向外突出的表面,其结果是网格精确地定位在延伸燃料组件长度的控制杆导管上并机械固定。
    • 7. 发明授权
    • Grid sleeve bulge tool
    • 网格套筒凸起工具
    • US4182152A
    • 1980-01-08
    • US831459
    • 1977-09-08
    • Ronald E. VaillWilliam D. Phillips
    • Ronald E. VaillWilliam D. Phillips
    • B21D31/04B21D39/06B21D39/20G21C3/34G21C7/12G21C7/14G21C21/00B21D39/04
    • B21D39/06B21D39/20Y10T29/4994Y10T29/531
    • An improved grid sleeve bulge tool designed for securing control rod guide tubes to sleeves brazed in a fuel assembly grid. The tool includes a cylinder having an outer diameter less than the internal diameter of the control rod guide tubes. The walls of the cylinder are cut in an axial direction along its length to provide several flexible tines or ligaments. The end of each alternate tine is equipped with a semispherical projection which extends radially outwardly from the tine surface. A ram or plunger of generally cylindrical configuration and about the same length as the cylinder is designed to fit in and move axially of the cylinder and thereby force the tined projections outwardly when the ram is pulled into the cylinder. As the projections thereon outwardly into contact with the sleeve, they plastically deform both the sleeve and the control rod guide tube simultaneously to thereby form four bulges which extend outwardly from the sleeve surface and beyond the outer periphery of the grid peripheral strap.
    • 一种改进的网格套筒凸出工具,设计用于将控制杆导向管固定在钎焊在燃料组件网格中的套管上。 该工具包括具有小于控制杆导管的内径的外径的圆柱体。 圆柱体的壁沿其长度沿轴向切割以提供若干柔性齿或韧带。 每个交替齿的末端配备有从齿表面径向向外延伸的半球形突起。 大致圆柱形构造并且与圆柱体大致相同长度的柱塞或柱塞被设计成装配在气缸的轴向并沿轴向移动,并且由此当压头拉入气缸时将着陆的突起向外强制。 随着其上与外套接触的突起,它们同时塑性地使套管和控制杆引导管变形,从而形成从套筒表面向外延伸并且超过栅格外围带的外周边的四个凸起。