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Huge contract announced for carbon fiber centrifuge rotor tubes

机译：宣布签订碳纤维离心机转子管合同

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Alliant Techsystems (ATK, Minne-apolis, Minn.) announced on Aug. 20 that it will produce carbon fiber rotor tubes for USEG Inc.'s (Bethesda, Md.) United States Enrichment Corp., the only uranium enrichment company operating today in the U.S. Under the terms of the contract, which includes supply partner Hexcel Corp. (Dublin, Calif.), Hexcel will provide the carbon fiber and ATK will filament wind the carbon/epoxy tubes at its Rocket Center, W.Va., facility. The tubes will be used in production at USEC's American Centrifuge Plant, in Piketon, Ohio, a uranium-enrichment site currently under construction. The rotor tubes were initially produced by ATK at the company's Clearfield, Utah, plant under a preexisting 10 million dollars (USD) contract. Rotor tubes are integral to the "enrichment" process that separates fissionable U-235 isotope from other components for nuclear power plants. The tubes, approximately 18 inches/457 mm in diameter and approximately 10 ft to 12 ft (3m to 3.6m) long, fit inside metallic tubes to form a vacuum-tight vertical centrifuge. A small electric motor spins the inner rotor tube at high speed (more than 1500 rpm) causing the isotopes to separate. "Cascades" of thousands of spinning centrifuges are linked together to optimize the separation and collection of U-235, which is much more cost-effective than the alternative gas diffusion enrichment process, says USEC.
机译：Alliant Techsystems（位于明尼苏达州明尼阿波利斯的ATK）于8月20日宣布，它将为USEG Inc.（美国马里兰州贝塞斯达）美国浓缩公司（今天运营的唯一铀浓缩公司）生产碳纤维转子管。在美国，根据合同条款，其中包括供应伙伴Hexcel Corp.（加利福尼亚州都柏林），Hexcel将提供碳纤维，ATK将在其位于华盛顿州Rocket Center的碳/环氧管进行纤维缠绕，设施。这些管材将在位于俄亥俄州皮克顿的USEC美国离心机厂生产，该厂目前正在建设中。转子管最初是由ATK在该公司位于犹他州Clearfield的工厂生产的，当时的合同额为1000万美元。转子管是“富集”过程不可分割的一部分，该过程将可裂变的U-235同位素与核电厂的其他组件分开。直径约18英寸/ 457毫米，长约10英尺至12英尺（3m至3.6m）的试管安装在金属试管内，以形成真空密封的垂直离心机。小型电动机使内转子管高速旋转（大于1500 rpm），导致同位素分离。 USEC说，成千上万个离心式离心机的“级联”被链接在一起以优化U-235的分离和收集，这比替代性气体扩散富集方法更具成本效益。

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