ES384788A1 - Method for the molding by vacuum of pieces from thermoconformable sheets. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Method for the molding by vacuum of pieces from thermoconformable sheets. (Machine-translation by Google Translate, not legally binding)
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GIRALT MESTRE
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GIRALT MESTRE
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Blow-Moulding Or Thermoforming Of Plastics Or The Like
(AREA)
Abstract
Method for the vacuum molding of pieces from thermoformable sheets, characterized in that said sheets, of expanded and thermoinsulating type, especially obtained in polyvinyl chloride, polyester or polyurethane, which are properly framed and arranged between two heating apparatuses acting at the same time on both sides, preferably on the basis of infrared irradiation, so that once the second degree of uniform softening is reached, and after separation of said heating apparatuses, said sheets are applied individually in a mold in which a vacuum action is produced which determines the adaptation of the sheet on the apparent surface of the mold, adopting the sinuosities thereof, the resulting sheet being removed from the mold, after its stabilizing cooling. (Machine-translation by Google Translate, not legally binding)
ES384788A1970-10-221970-10-22Method for the molding by vacuum of pieces from thermoconformable sheets. (Machine-translation by Google Translate, not legally binding)
ExpiredES384788A1
(en)
Procedure for the manufacture of a biaxily strengthened sheet based on poly (vinyl chloride) or copolymers of vinyl chloride with thermosoldable layer. (Machine-translation by Google Translate, not legally binding)