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1. 发明授权

US4038356A Method and apparatus for making a fibrous board-like product having a male edge and a female edge 失效
标题翻译：制造具有男性边缘和女性边缘的纤维板状产品的方法和装置
公开(公告)号：US4038356A
公开(公告)日：1977-07-26
申请号：US676775
申请日：1976-04-14
申请人： Robert Louis Beranek, Jr. , Donny Lee Timms
发明人： Robert Louis Beranek, Jr. , Donny Lee Timms
IPC分类号： B27N3/20 , B32B20060101 , F16L59/02 , F24F13/02 , B29D3/02 , B29G5/00
CPC分类号： B29C70/52
摘要： Disclosed is a method for making a board-like product capable of being formed into a duct section having a male end and a female end for joining sections together to form a duct. Inorganic fibers coated with a heat setable binder and collected in the form of a blanket are passed between heated moving surfaces to cure the binder in the top and bottom surface portions. The resultant partially cured blanket is then passed between one or more sets of heated platens to completely cure the binder and to shape the blanket to the desired thickness and configuration.A flat valley depression is formed longitudinally along the blanket down its center portion, and each edge is provided with a male edge, in the first set of platens. After the blanket has been shaped and cured, it is separated into two strips along the middle portion of the flat valley to form two strips, each having a female edge along one longitudinal edge and a male edge along the opposite edge. The method and apparatus of the present invention provides an improved female edge, i.e., one having a much smaller radius than produced in the prior art process and capable of forming better joints in air duct systems.
摘要翻译：公开了一种用于制造能够形成为具有阳端和阴端的管道部分的板状产品的方法和装置，用于将部分连接在一起以形成管道。涂覆有可热固化粘合剂并以毯子形式收集的无机纤维在加热的移动表面之间通过，以在顶部和底部表面部分中固化粘合剂。然后将所得的部分固化的橡皮布通过一组或多组加热的压板，以完全固化粘合剂并使橡皮布成形为所需的厚度和构型。在其中心部分沿着橡皮布纵向形成平坦的凹陷凹陷，并且每个边缘在第一组压板中设置有凸缘。在毯被成形和固化之后，沿着平坦谷的中间部分分成两条条，以形成两条，每条具有沿一个纵向边缘的阴边缘和沿着相对边缘的凸缘。本发明的方法和装置提供了一种改进的凹形边缘，即具有比现有技术方法中产生的小得多的半径，并且能够在空气管道系统中形成更好的接头。

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