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    • 3. 发明授权
    • Method for manufacturing a variable insulated helically wound electrical
coil
    • 用于制造可变绝缘螺旋缠绕电线圈的方法
    • US6138343A
    • 2000-10-31
    • US364029
    • 1999-07-30
    • Norris L. HillThomas L. Linsenbardt
    • Norris L. HillThomas L. Linsenbardt
    • H01F41/06H01F41/12H01F41/02
    • H01F41/122H01F41/066H01F41/086Y10T29/49071Y10T29/52
    • A method and apparatus for manufacturing a variable insulated helically wound electrical coil is disclosed. Insulated rectangular wire is fed from a supply reel to a coating zone and within the coating zone liquid resin insulation is selectively applied to the wire so it has additional insulation only in those areas of the coil where the dielectric strength is needed. The insulated wire is fed through a curing station to allow curing of the additional insulation prior to winding the cured insulated wire into a coil. The cured insulated wire is wound into a coil of predetermined shape at a winding station whereby the portions of the wire having the additional insulatin are located in the areas of the coil where the greatest dielectric strength is needed. The timing of the resin application to the wire is coordinated with the winding of the coil so that the proper insulation thicknesses are achieved at the required locations in the coil. There is also disclosed a variably insulated helically wound high voltage electrical coil for a transformer wherein a variable thickness of cured synthetic resin insulation is applied to the turns in each layer of the coil so that the insulation increases in thickness from substantially zero at one end of the layer where layer-to-layer voltage stresses will be low and the required maximum thickness at the opposite end of the layer where voltage stresses will be high and this progression and insulation thickness is repeated on each adjacent layer of the coil.
    • 公开了一种用于制造可变绝缘螺旋缠绕电线圈的方法和装置。 绝缘矩形线从供带盘供给到涂层区域,并且在涂层区域内,液体树脂绝缘体选择性地施加到电线上,因此仅在需要介电强度的线圈的那些区域中具有额外的绝缘。 在将固化的绝缘电线卷绕成线圈之前,绝缘电线通过固化站馈送以允许附加绝缘体的固化。 固化的绝缘电线在卷绕站处卷绕成预定形状的线圈,由此具有附加绝缘体的线的部分位于需要最大绝缘强度的线圈区域中。 树脂施加到导线的时间与线圈的绕组协调,使得在线圈中的所需位置处实现适当的绝缘厚度。 还公开了一种用于变压器的可变绝缘螺旋缠绕的高压电线圈,其中固化的合成树脂绝缘体的可变厚度施加到线圈的每层中的匝上,使得绝缘体的厚度从基本上在零 层 - 层电压应力低的层和在电压应力将高的层的相对端所需的最大厚度,并且在线圈的每个相邻层上重复该进行和绝缘厚度。
    • 5. 发明授权
    • Insulated metallic strip and method for producing same
    • 绝缘金属带及其制造方法
    • US5904953A
    • 1999-05-18
    • US802694
    • 1997-02-19
    • Thomas L. LinsenbardtNorris L. HillHoan Duy Le
    • Thomas L. LinsenbardtNorris L. HillHoan Duy Le
    • B05D1/32B05D3/04B05D3/06B05D5/06B32B3/04B32B15/00B32B33/00C08F2/46H01F5/06H01F27/32H01F41/06B32B23/02
    • H01F5/06B05D3/0493B32B15/00B32B3/04B32B33/00H01F27/323H01F41/063B05D1/32B05D3/067B05D5/061H01F2027/328Y10T428/24917Y10T428/31678
    • An insulated metallic strip suitable for use in the coils of power transformers and method of producing the same. Following the extrusion of a flat metallic strip of conductive material for winding into a magnet coil, the flat strip having a predetermined thickness and first and second sides bounded by a pair of fully rounded edges, the method of insulating the strip of conductive material by supporting the flat strip in a level state at a predetermined temperature in a vacuum chamber and while in the vacuum chamber applying a liquid coating of resin to the entire first side of the strip and the pair of rounded edges and extending onto the second side of the strip from each of the edges a distance at least as great as about 0.25" to prevent turn to turn discharge. Applying a liquid coating of resin to the second side of the strip at a plurality of spaced areas between the coating extending around the edges, controlling the placement and thickness of the resin coating on the strip and curing the liquid coating of resin. A flat metallic strip of conductive material coated according to this method is also disclosed.
    • 适用于电力变压器线圈的绝缘金属带及其制造方法。 在用于卷绕到磁体线圈中的用于卷绕成导电材料的平坦的金属带材的挤出之后,具有预定厚度的扁平条带和由一对完全圆形边缘限定的第一和第二侧,通过支撑来绝缘导电材料条的方法 在真空室中在预定温度处于处于水平状态的扁平条,并且在真空室中,在所述条带的整个第一侧和所述一对圆形边缘处施加液体涂层并且延伸到所述带的第二侧上 从每个边缘的距离至少大约0.25“,以防止转向放电。 在围绕边缘延伸的涂层之间的多个间隔区域处,在条的第二侧施加树脂的液体涂层,控制树脂涂层在条上的​​放置和厚度并固化树脂的液体涂层。 还公开了根据该方法涂覆的导电材料的扁平金属条。
    • 6. 发明授权
    • Method for producing an insulated metallic strip
    • 绝缘金属带的制造方法
    • US5980995A
    • 1999-11-09
    • US233269
    • 1999-01-19
    • Thomas L. LinsenbardtNorris L. HillHoan Duy Le
    • Thomas L. LinsenbardtNorris L. HillHoan Duy Le
    • B05D1/32B05D3/04B05D3/06B05D5/06B32B3/04B32B15/00B32B33/00C08F2/46H01F5/06H01F27/32H01F41/06C08J7/04
    • H01F5/06B05D3/0493B32B15/00B32B3/04B32B33/00H01F27/323H01F41/063B05D1/32B05D3/067B05D5/061H01F2027/328Y10T428/24917Y10T428/31678
    • An insulated metallic strip suitable for use in the coils of power transformers and method of producing the same. Following the extrusion of a flat metallic strip of conductive material for winding into a magnet coil, the flat strip having a predetermined thickness and first and second sides bounded by a pair of fully rounded edges, the method of insulating the strip of conductive material by supporting the flat strip in a level state at a predetermined temperature in a vacuum chamber and while in the vacuum chamber applying a liquid coating of resin to the entire first side of the strip and the pair of rounded edges and extending onto the second side of the strip from each of the edges a distance at least as great as about 0.25" to prevent turn to turn discharge. Applying a liquid coating of resin to the second side of the strip at a plurality of spaced areas between the coating extending around the edges, controlling the placement and thickness of the resin coating on the strip and curing the liquid coating of resin. A flat metallic strip of conductive material coated according to this method is also disclosed.
    • 适用于电力变压器线圈的绝缘金属带及其制造方法。 在用于卷绕到磁体线圈中的用于卷绕成导电材料的扁平金属带材的挤出之后,具有预定厚度的扁平条带和由一对完全圆形边缘限定的第一和第二侧,通过支撑来绝缘导电材料条的方法 在真空室中在预定温度处于处于水平状态的扁平条,并且在真空室中,在所述条带的整个第一侧和所述一对圆形边缘处施加液体涂层并且延伸到所述带的第二侧上 从每个边缘的距离至少大约0.25“,以防止转向放电。 在围绕边缘延伸的涂层之间的多个间隔区域处,在条的第二侧施加树脂的液体涂层,控制树脂涂层在条上的​​放置和厚度并固化树脂的液体涂层。 还公开了根据该方法涂覆的导电材料的扁平金属条。
    • 8. 发明授权
    • Opening apparatus having an alignment system for producing a continuous
metal strip from a split-tube
    • 打开装置具有用于从分割管产生连续金属条的对准系统
    • US5406818A
    • 1995-04-18
    • US121613
    • 1993-09-15
    • Thomas L. LinsenbardtDaniel H. Hickman
    • Thomas L. LinsenbardtDaniel H. Hickman
    • B21C23/08B21C23/00B21C23/06B21C25/00B21C35/00B21C35/02B21C37/02B21C37/04
    • B21C23/06B21C23/005B21C25/00B21C35/00B21C35/02B21C37/02B21C37/04
    • Twin metal billets are fed to dual circumferential grooves formed in a rotating wheel. The billets are advanced first to a wedge-shaped gap which deforms the billets and are then advanced to a die. The die has a die opening with a circumferentially discontinuous, annular cross-section. The metal from each billet merges in the die opening and exits therefrom in the form of a slit tube. The tube is then opened and flattened to form a flat strip by advancing the slit tube over a forming member having a progressively increasing width. As the tube is advanced over the forming member, an alignment system maintaining the tube in a centered position. The alignment system includes a light source disposed within the tube and two arrays of photo-transistors arranged to receive light from the light source, the amount of light sensed by each array being a function of the position of the slit in the tube relative to a desired position. Any difference results in a steering roll which is in contact with the outer surface of the tube being pivoted in a direction which will bring the tube back into alignment.
    • 双金属坯料被供给到形成在旋转轮中的双周向槽。 钢坯首先先进到楔形间隙,使钢坯变形,然后前进到模具。 模具具有具有周向不连续的环形横截面的模具开口。 来自每个坯料的金属在模具开口中合并,并以狭缝管的形式离开。 然后通过将切割管推进在逐渐增加的宽度的成形构件上,将管打开并变平以形成扁平条。 当管在成形构件上前进时,将管保持在居中位置的对准系统。 对准系统包括设置在管内的光源和布置成接收来自光源的光的两个光电晶体阵列,每个阵列感测的光量相对于管中狭缝位置的函数 所期望的职位。 任何差异导致转向辊与管的外表面接触,该转向辊在使管回到对准的方向上枢转。