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    • 6. 发明授权
    • Method of manufacturing a length of mineral insulated cable having
predetermined .gamma.-ray sensitivity in a high radiation environment
    • 在高辐射环境下制造具有预定伽马射线灵敏度的矿物绝缘电缆长度的方法
    • US4569705A
    • 1986-02-11
    • US605469
    • 1984-04-30
    • Colin J. Allan
    • Colin J. Allan
    • G01T3/00H01B7/16H01B13/004H01B13/00
    • G01T3/006H01B13/004H01B7/16Y10T29/49089
    • A method of manufacturing, as a length of mineral insulated cable, a self-powered neutron flux detector, a lead cable therefor or both, with the detector, the lead cable or both having predetermined .gamma.-ray sensitivity in a high radiation environment, is provided wherein metal bands are provided around the detector core wire, the lead cable core wire or both, inside the sheath to control the .gamma.-ray sensitivity. The metal bands, and sleeves of a frangible insulation, are assembled in an oversize sleeve which is then reduced in diameter to pulverize the frangible sleeves, each metal band being in electrical contact with either the core wire or sheath. The metal bands incorporated in the lead cable predetermine the .gamma.-ray (and hence the dynamic response) of the lead cable, the metal bands incorporated in the detector predetermine the .gamma.-ray response (and hence the dynamic response) of the detector.
    • 在高辐射环境下,使用检测器,引线电缆或具有预定的γ射线灵敏度的两种方式制造一种矿物绝缘电缆,一种自供电中子通量检测器,其导线或两者, 其中金属带设置在护套周围的检测器芯线,引线电缆芯线或两者上,以控制伽马射线灵敏度。 易碎绝缘体的金属带和套筒组装在一个尺寸过大的套筒中,然后直径减小以粉碎易碎的套管,每个金属带与芯线或护套电接触。 结合在引线中的金属带预先确定引线电缆的伽马射线(因此是动态响应),并入检测器中的金属带预先确定检测器的伽马射线响应(因此也就是动态响应)。
    • 7. 发明授权
    • Method and apparatus for effecting a controlled reduction in the cross-section of a tubular electric heater
    • 用于在管状电加热器的交叉部分中进行控制减少的方法和装置
    • US3807207A
    • 1974-04-30
    • US27082272
    • 1972-07-11
    • OBDRZALEK S
    • OBDRZALEK S
    • B21B23/00H01B13/004H05B3/48B21B37/00
    • H05B3/48B21B23/00H01B13/004
    • The invention provides a method and apparatus for use in the manufacture of tubular electric heaters, wherein a heater element is embedded in a tube in a powdered insulating material, and the cross-section of the tube is thereafter reduced and the insulating material is compressed by hammering around the tube, rolling, or the like, thereby causing an increase in length of the tube. To ensure a final desired nominal length of tube, the length of the tube is sensed during the rolling or hammering operation, at a stage in production when the length of the tube lies below or at the desired nominal length. Any further reduction in cross-section of the tube is controlled in accordance with the length so sensed and in a stepless variable manner so that the tube is of the desired nominal length when the hammering or rolling step is concluded.
    • 本发明提供了一种用于制造管状电加热器的方法和装置,其中加热器元件嵌入管中的粉末绝缘材料中,然后减小管的横截面,并且绝缘材料被压缩 围绕管子,滚动等敲击,从而导致管子的长度增加。 为了确保管的最终期望的标称长度,在轧制或锤击操作期间,当管的长度低于或期望的标称长度时,在生产阶段期间感测管的长度。 根据所感测的长度和以无级变量的方式控制管的横截面的任何进一步减小,使得当锤击或滚动步骤结束时,管具有期望的标称长度。