processo para moldagem por sopro de um recipiente a partir de uma pré-forma de plástico

A plastics parison is heated and then expanded by a gas at a low pressure of 2-15 bar followed by the ignition of a flammable gas which increases the inner pressure to give the final container shape. After ignition, the inner surface of the container is coated with e.g. silicon oxide. The precursor...

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Hauptverfasser: HEINRICH GRUENWALD, DOMINIQUE CHATARD, HANNO KAESS, WILHELM LOTHAR
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creator HEINRICH GRUENWALD
DOMINIQUE CHATARD
HANNO KAESS
WILHELM LOTHAR
description A plastics parison is heated and then expanded by a gas at a low pressure of 2-15 bar followed by the ignition of a flammable gas which increases the inner pressure to give the final container shape. After ignition, the inner surface of the container is coated with e.g. silicon oxide. The precursor gas is mixed before blow molding, and the inner coating is formed during final molding. To blow mold a container (1) from a plastics parison (2), it is heated and then expanded by a gas at a low pressure of 2-15 bar followed by the ignition of a flammable gas which increases the inner pressure to give the final container shape. The flammable gas is a precursor gas based on silicon, magnesium, aluminum, titanium, zinc, zirconium or boron in a gas mixture. After ignition, the inner surface of the container is coated with silicon oxide, silicon oxynitride, magnesium oxide, aluminum oxide, titanium oxide, zinc oxide, zirconium oxide or boron oxide. The precursor gas is mixed before blow molding, and the inner coating is formed during final molding.
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subjects AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES
PERFORMING OPERATIONS
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title processo para moldagem por sopro de um recipiente a partir de uma pré-forma de plástico
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