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公开(公告)号：US4869865A
公开(公告)日：1989-09-26
申请号：US279185
申请日：1988-12-02
IPC分类号： G21C3/34
CPC分类号： G21C3/3424 , Y02E30/40 , Y10T29/49829
摘要： In the automated production line manufacture of nuclear fuel bundle spacers, rod-supporting ferrules are cut from tubular stock, checked for length, laser cut to create predetermined features in the ferrule sidewall, formed with rod-centering stops in the ferrule sidewall, and checked for stop height dimensional accuracy. Pairs of ferrules are subassembled with a captive spring and assembled into a spacer assembly fixture together with other spacer parts. The fixtured spacer parts are conjoined by laser welding to create a structurally rigid spacer. The various production line operating stations are served by separate controllers linked to a central computer for production status reporting, parts traceability, and overall control purposes.
摘要翻译： 在核燃料束间隔物的自动化生产线生产线中，从管状坯料切割棒支撑套圈，检查长度，激光切割以在套圈侧壁中产生预定特征，在套圈侧壁中形成有杆定心止动件，并检查 用于停止高度尺寸精度。 一对套圈用固定弹簧组装，并与其他间隔件一起组装成间隔件组装夹具。 夹具的间隔件通过激光焊接结合在一起，形成结构刚性的间隔件。 各种生产线操作站由连接到中央计算机的单独控制器提供，用于生产状态报告，零件可追溯性和总体控制目的。
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公开(公告)号：US4924586A
公开(公告)日：1990-05-15
申请号：US279009
申请日：1988-12-02
CPC分类号： G21C3/3424 , G21Y2002/202 , G21Y2002/205 , G21Y2002/302 , G21Y2004/30 , G21Y2004/401 , Y02E30/40 , Y10T29/531 , Y10T29/53187
摘要： To form longitudinally spaced pairs of angularly spaced stops in the walls of fuel rod-positioning ferrules utilized in nuclear fuel bundle spacers, the ferrules, cut from tubular stock, are longitudinal oriented in a first station and angularly oriented in a second station using a reference notch cut in one ferrule edge. Successive ferrules are picked from the second station and placed in a die of a punch press. Ferrule exterior surface back-up is provided by the die upon closure, and interior surface back-up is provided by a mandrel inserted in the ferrule bore as the punches converge into stop-forming engagement with the ferrule wall. Formed ferrule discharge is induced by placement of the next ferrule in the die.
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公开(公告)号：US5566217A
公开(公告)日：1996-10-15
申请号：US380591
申请日：1995-01-30
CPC分类号： G21C3/3566 , G21C3/344 , G21Y2002/201 , G21Y2002/301 , G21Y2004/301 , G21Y2004/305 , Y02E30/40
摘要： A spacer includes a plurality of ferrules welded to one another to form a structural integral matrix for locating fuel rods in a fuel bundle. Each ferrule has a pair of stops along one side of the ferrule and a central opening along its opposite side. An elongated flat spring having openings straddling a central cross-piece is disposed along an outer edge of the ferrule with the spring openings receiving band portions of the ferrule above and below the opening through the ferrule. The intermediate cross-piece bears against an adjoining ferrule whereby the end portions of the spring bear against the rod in the one ferrule, biasing it against the opposite stops. Thus ferrule/spring construction reduces the quantity of material of the ferrule, thereby improving performance without sacrificing structural integrity.
摘要翻译： 间隔件包括彼此焊接的多个套圈，以形成用于将燃料棒定位在燃料束中的结构整体式基体。 每个套圈在套圈的一侧具有一对止动件，沿其相对侧具有中心开口。 具有穿过中心横截面的开口的细长的平面弹簧沿着套圈的外边缘设置，弹簧开口通过套圈将开口的上方和下方的套圈的带部分接收。 中间横件靠在相邻的套圈上，由此弹簧的端部抵靠在一个套圈中的杆上，将其抵靠相对的止挡件偏压。 因此，套圈/弹簧结构减小了套圈的材料的数量，从而在不牺牲结构完整性的情况下提高性能。
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4.发明授权Apparatus for machining intricate feature cuts in thin walled tubular parts 失效用于在薄壁管状部件中加工复杂特征切割的装置
公开(公告)号：US4931615A
公开(公告)日：1990-06-05
申请号：US279007
申请日：1988-12-02
申请人： Donald G. Muncy , William B. Plotts
发明人： Donald G. Muncy , William B. Plotts
CPC分类号： G21C3/3424 , B23K26/0823 , G21Y2002/202 , G21Y2002/205 , G21Y2002/302 , G21Y2004/30 , G21Y2004/401 , Y02E30/40
摘要： Tubular parts are delivered in successive pairs to separate rotary positioners where they are held for machining in parallel by twin laser cutting beams directed thereat by a commonly mounted pair of focussing heads. The rotary positioners are commonly rotated through a programmed series of angular motions in conjunction with a programmed series of joint X and Y axes linear motions of the focusing heads to scan the cutting beam over the surfaces of the parts and thus machine identical feature cuts in the sidewall of each part. Machining is performed under an inert gas atmosphere, and cuttings are vacuumed from the machining sites through apertured mandrels inserted into the part bores.
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