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    • 2. 发明申请
    • Optimized heat roll apparatus
    • 优化热辊设备
    • US20070042884A1
    • 2007-02-22
    • US11507108
    • 2006-08-21
    • Rene LariveBruce Taylor
    • Rene LariveBruce Taylor
    • F28F5/02
    • F28F5/02D21F5/021D21F5/024D21G1/028
    • One embodiment of the heated roll apparatus uses an optimized roll whose surface layer is composed of a material responsive to being heated, particularly by external magnetic induction, and the depth of which, as well as the construction of the rest of the roll, uses one or more other materials whose properties are optimized with respect to maximizing the roll's rate of temperature change, minimizing energy usage, and performing the intended application. A thin outer ferrous layer over top of a thicker ceramic, insulating layer may be used. The roll may also include an outer layer that is responsive to heating, particularly by magnetic induction, and one or more inner layers of different material(s) chosen to increase the roll's rate of temperature change and reduce energy usage, but which are further selected to promote rapid lateral heat conduction to reduce lateral temperature variations. This roll could include a thin outer ferrous layer over top of a thicker aluminum core. The roll may instead be constructed of a single contiguous material (such as a carbon-fiber composite) that is particularly responsive to heating by magnetic induction, and which has a higher strength-to-weight ratio than ferrous alloys (i.e. cast iron or steel), thereby allowing it to be lower in weight and more thermally responsive than conventional heated rolls. The roll may also have a surface layer or contiguous depth composed of a material responsive to being heated, particularly by magnetic induction, but which in addition has a minimal outside diameter (regardless of its internal construction) in order to minimize its mass, so that it can be heated more quickly to a higher temperature, by a given heat input rate generated by any means, than would be possible with a larger, conventional heated roll.
    • 加热辊装置的一个实施例使用优化的辊,其表面层由响应于加热的材料组成,特别是通过外部磁感应,并且其深度以及辊的其余部分的结构使用一个 或更多的其他材料,其性质在最大化辊的温度变化率,最小化能量使用和执行预期应用方面被优化。 可以使用在较厚的陶瓷绝缘层的顶部上的薄的外层铁层。 辊还可以包括响应于加热的外层,特别是通过磁感应,以及选择一种或多种不同材料的内层,以增加辊的温度变化速率并减少能量使用,但进一步选择 促进快速横向热传导以减少横向温度变化。 该辊可以在较厚的铝芯的顶部上包​​括薄的外层铁层。 辊可以替代地由单一的邻接材料(例如碳纤维复合材料)构成,其特别是响应于通过磁感应加热,并且具有比铁合金(即铸铁或钢)更高的强度重量比 ),从而使其比常规加热辊的重量更轻且更热响应。 该辊还可以具有由响应于被加热的材料构成的表面层或连续深度,特别是通过磁感应,但是另外具有最小的外径(不管其内部结构如何)以使其质量最小化,使得 通过任何方式产生的给定的热输入速率可以比用较大的传统加热辊可能更快地加热到更高的温度。