| 摘要 |
<p>918,704. Agglutinated fibrous materials; laminates and laminating. MICIAN, R., and TRACHTOR, J. June 30, 1960 [July 3, 1959], No. 23001/60. Class 140. A method for the continuous production of foils, sheets and plates by pressing or rolling an endless fleece produced from cord waste fibres and threads produced by grinding used tyres, comprises continuously treating the waste in scutching or carding machines to form a coherent self-supporting endless fleece which, after saturation with a binder, is, without the use of moulds, cut and pressed or without cutting continuously rolled to the final product. The binder may be applied, as a liquid, by spraying or misting, or, as a powder, by dusting. As shown (Fig. 1), cord waste is fed through pipe 1 into carding of scutching machine 2 where it is treated to form fleece 3 which is conveyed by endless conveyer 4 through chamber 5 where it is sprayed or misted with binder through nozzles 6, excess vapours being drawn off through pipe 7, and then through chamber 8 where it is dried by passage through a highfrequency electromagnetic field produced between electrodes 9, excess vapours being drawn off through pipe 10. The dried fleece is then conveyed by conveyer 11 to cutting table 15 where lengths are cut by guillotine 13 and deposited on to sheet metal supports 14. A number of cut pieces 3 each on a metal support 14 are pressed in press 16. In a further embodiment (Fig. 2) a plurality of laps of fleece 21, produced according to the invention, are each sprayed, misted or dusted with binder from applicators 25 and assembled in superposed layers to form a multiple fleece 28 which is then passed through chamber 30 comprising a high-frequency electromagnetic field produced between electrodes 31, whereby the binder, if liquid, is dried and if a powder is melted. Surface layers 34 and 36 which may be of plastic foil, paper, metal foil or woven material are then applied and the assembly is pressed between belts 38-39 of a pressing conveyer.</p> |
