Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling

Full Title

Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor > Component parts, details or accessories; Auxiliary operations > Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

Subclass:

SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

Child Classifications

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• B29C 48/79 of preformed parts or layers
• B29C 48/793 upstream of the plasticising zone, e.g. heating in the hopper
• B29C 48/8 at the plasticising zone, e.g. by heating cylinders
• B29C 48/86 at the nozzle zone
• B29C 48/875 for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones