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Priority to RO109213ApriorityCriticalpatent/RO86263B1/en
Publication of RO86263A2publicationCriticalpatent/RO86263A2/en
Publication of RO86263B1publicationCriticalpatent/RO86263B1/en
Blow-Moulding Or Thermoforming Of Plastics Or The Like
(AREA)
Abstract
Procedeul, conform inventiei, consta în formarea unei platforme prin injectarea materialului termoplastic la o temperatura impusa într-o matrita dupa care, se efectueaza, fiind introdusa într-o matrita intermediara unde se produce expanmdarea partiala a acestiua prin presiunea din interiorul sau în contact cu peretii matritei si performa expandata, ajungînd la o temperatura constanta la performa, care se matriteaza într-o forma finala într-o matrita de suflare cu racirea articolului tubular realizat.The process according to the invention consists in forming a platform by injecting the thermoplastic material at a temperature imposed in a mold after which it is carried out being introduced into an intermediate mold where the partial expansion of this pressure occurs either inside or in contact with the walls of the mold and expanded performance, reaching a constant performance temperature, which is molded into a final mold in a blow mold by cooling the tubular article made.
RO109213A1982-12-031982-12-03Process for obtaining peroxydicarbonates
RO86263B1
(en)
Method of producing double-walled moulded bodies for the sound-damping of vehicles and engines in general by means of a single pressing step, and double-walled moulded bodies produced by this method.