公开(公告)号：US3663137A

公开(公告)日：1972-05-16

申请号：US3663137D

申请日：1969-06-30

申请人： WERZALIT PRESSHOLZWERK J F WER

发明人： HAAS HERBERT G ,  MUNK EDMUND ,  FINK ALFRED ,  KLINK ERICH

IPC分类号： B27N3/14 ,  B29C31/06 ,  B29C5/00

CPC分类号： B27N3/14 ,  B29C31/06 ,  B29C31/066

摘要： A method of and apparatus for preforming moldable compositions of fibrous materials and a binder in which the preform had portions along its width having different thicknesses corresponding to different thicknesses of the final molded product. Initially the composition is formed into a mat which has a thickness at least equal to the thickest portion of the preform, and then excess material is removed from across the width of the mat by scalping rolls to develop the contoured preform having different thicknesses. Each section of the mat having a different thickness is weighed separately to insure proper density of that section of the mat. Following the weighing step, the mat is again shaped into the contoured preform and placed into a mold for a subsequent heating and pressing operation.

摘要翻译： 用于预成型纤维材料和粘合剂的可成型组合物的方法和装置，其中预成型件沿其宽度具有不同厚度的部分，其对应于最终成型产品的不同厚度。 最初，组合物形成为具有至少等于预成型件最厚部分的厚度的垫，然后通过刮刀辊从垫子的宽度上去除多余的材料，以形成具有不同厚度的轮廓预制件。 分别称量具有不同厚度的垫的每个部分以确保垫的该部分的适当密度。 在称重步骤之后，垫子再次成型成轮廓预成型件并放置在模具中用于随后的加热和压制操作。