B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 49/64 (2006.01) B65B 3/02 (2006.01) B65B 3/04 (2006.01) B65B 53/06 (2006.01) B67C 3/22 (2006.01)
Patent
CA 2702282
The subject of the invention is a method of pressurizing a thin-walled container designed to contain a flat liquid, characterized in that it consists in the following series of steps: making a thin-walled container in which residual stresses are set up; filling this container with said flat liquid at a cold temperature; sealing the container after filling it; and heating the wall of the container without raising the temperature of the liquid, to reach the temperature of relaxation of said stresses in such a way that the interior of said container is pressurized. The invention also covers the container produced in this way.
L'objet de l' invention est un procédé de mise en pression d'un contenant à paroi mince, destiné à contenir un Iiquide plat, caractérisé en ce qu'il consiste en la succession des étapes suivantes : réalisation d'un contenant à paroi mince, en générant des contraintes résiduelles, emplissage à froid de ce contenant avec ledit liquide plat, bouchage du contenant après emplissage, et chauffage de la paroi du contenant, sans élévation de température du liquide, pour atteindre le point de température de reclâchement desdites contraintes de façon à générer une mise en pression de l'intérieur dudit contenant L'invention couvre aussi le contenant ainsi obtenu.
Robic
Tecsor
Tecsor Hr
LandOfFree
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