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    • 9. 发明授权
    • Method of forming a panel
    • 形成面板的方法
    • US3948708A
    • 1976-04-06
    • US344869
    • 1973-03-26
    • Richard P. Doerer
    • Richard P. Doerer
    • B27D1/08B31F1/00
    • B27D1/083Y10T156/1002Y10T156/1031
    • A method of forming a flexible sheetlike structure such as an automotive head-liner by treating a sheet of fiberboard or other woodlike fibrous material with water at an elevated temperature to make the sheet sufficiently ductile to permit forming without tearing or blowing, and placing the water-treated sheet between heated dies to form the sheet to a compound curvature by the application of heat and pressure. The sheet may or may not be perforated. The method also includes finishing one side of the die-formed sheet by securing a decorative or sound-absorbing layer thereto. The sheet is placed on a support and the layer is applied over the adhesive coated upper surface of the sheet. A cover is draped over the support to provide an air seal over the layer and sheet and is drawn against the support by differential pressure, either pressure or vacuum to press the layer against the sheet and adhere the two together.
    • 通过在高温下用水处理纤维板或其它木质纤维材料片材来形成诸如汽车头衬的柔性片状结构的方法,以使片材具有足够的延展性以允许成形而不会撕裂或吹动,并将水放置 在加热的模具之间经过处理的片材,通过施加热和压力将片材形成为复合曲率。 片材可以是或可以不是穿孔的。 该方法还包括通过将装饰或吸音层固定在其上来完成模制片的一侧。 将片材放置在支撑件上,并且将层施加在粘合剂涂布的片材的上表面上。 将盖子覆盖在支撑件上方以在层和片材上提供空气密封,并通过压力或真空压差将压力推压到支撑件上,以将层压在片材上并将两者粘合在一起。