ES310892A2 - Manufacturing procedure by molding elements of expanded matter. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements introduced in the object of the main patent No. 291.206, issued on November 2, 1963, by: "manufacturing process by molding expanded material elements", which consist of preparing, in continuous, a liquid mixture not expanded, a ) of a synthetic resin, b) of a sufficient amount of a swelling agent, to obtain an expansion index of the order of 40 to 100 and c) of a conditioned curing agent, arranged for expansion, at a temperature comprised between environment and approximately 60º C, to arrange a mold that has the form of a narrow vertical corridor open at the top, whose facing faces, at a distance of the order of one decimeter, are animated, between an entrance and an exit, an identical movement of translation according to a direction parallel to the plane of the walls, means being provided to control the temperature of said walls between ambient and approximate at 70º C, the speed of translation of said walls being determined so that the time of travel, from the entrance to the outlet of the mold, is at least equal to the time necessary to obtain the expansion and hardening of the expanded material, in pouring, in continuous, said mixture, prepared for expansion, at the entrance of the movable corridor constituted by the walls of the mold, adapting the supply of said mixture to the speed of circulation of the walls, as determined above, so that the mold is Fill to the desired height. (Machine-translation by Google Translate, not legally binding)