Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die

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 > Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die

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 48/365 using pumps, e.g. piston pumps
• B29C 48/375 Plasticisers, homogenisers or feeders comprising two or more stages
• B29C 48/395 using screws surrounded by a cooperating barrel, e.g. single screw extruders
• B29C 48/46 using vanes
• B29C 48/465 using rollers
• B29C 48/47 using discs, e.g. plasticising the moulding material by passing it between a fixed and a rotating disc that are coaxially arranged
• B29C 48/475 using pistons, accumulators or press rams
• B29C 48/49 using two or more extruders to feed one die or nozzle
• B29C 48/5 Details of extruders