Procédé de fabrication d'une cloison

摘要

1,225,078. Partitions. G. ARNAUD. 10 Nov., 1969 [8 Nov., 1968], No. 55003/69. Headings B5A and B5N. Partitions including a plurality of reinforcing elements are produced by a process comprising positioning the reinforcing elements in relative predetermined positions, interlacing a band of glass fibre material between the reinforcing elements, placing a shuttering about the reinforcing elements, providing an expandible resin foam, non-adherent to the shuttering, in the shuttering, allowing the resin to expand and envelop the reinforcing elements and removing the partition thus formed from the shuttering. In Fig. 4 a band of laminated or non-laminated unidirectional fabric 11 composed of longitudinal glass fibres joined together by transversal glass fibres sufficient only to ensure the transversal joint of the longitudinal fibres, is interlaced between reinforcing elements 10 and a shuttering of plastic sheets 12, e.g. of polyvinyl chloride, which may be reinforced by having glued thereto battens of wood which are situated outwardly of the partition and transversely of the reinforcing elements, is placed about the elements 10, by suitable fastening means starting at the lower part of the wall preferably to a height of 40 cm. The filling of the polyurethane P is then carried out up to the level of the highest part of the shuttering and then a further section of shuttering placed and further polyurethane added. Since the polyurethane is obtained by a mixture of two products, a mixing gun may be used to fill the partition. The shuttering may then be removed and the surface covered with a layer of an accelerator to increase the hardening rate of the resin. The reinforcing elements 10 may be produced by a process comprising indicating the desired shape of the reinforcing element on a flat surface, fixing laths on the surface according to the desired shape, providing an expandible resin foam, e.g. polyurethane, non-adherent to the surface, in the space between the laths, providing a surface non-adherent to the foam on the laths, allowing the resin to expand and removing the laths and expanded foam forming the reinforcing elements from the surface. In producing the reinforcing elements the walls of the frame may be covered with a glass fibre mat prior to pouring in the expandible resin foam, and after pouring in the expandible resin foam the frame may be covered with a glass fibre mat. The partitions may be used for construction units, sound-proof and heat-proof walls, packaging and shells for light boats.