GB1573940A - Extrusion head incorporating a mixing means - Google Patents

Extrusion head incorporating a mixing means Download PDF

Info

Publication number
GB1573940A
GB1573940A GB11573/77A GB1157377A GB1573940A GB 1573940 A GB1573940 A GB 1573940A GB 11573/77 A GB11573/77 A GB 11573/77A GB 1157377 A GB1157377 A GB 1157377A GB 1573940 A GB1573940 A GB 1573940A
Authority
GB
United Kingdom
Prior art keywords
melt
ring
mixing
zones
channels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB11573/77A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Umformtechnik Herbert Warnke VEB
Original Assignee
Umformtechnik Herbert Warnke VEB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Umformtechnik Herbert Warnke VEB filed Critical Umformtechnik Herbert Warnke VEB
Publication of GB1573940A publication Critical patent/GB1573940A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
GB11573/77A 1976-03-30 1977-03-18 Extrusion head incorporating a mixing means Expired GB1573940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD192111A DD126550A1 (enrdf_load_stackoverflow) 1976-03-30 1976-03-30

Publications (1)

Publication Number Publication Date
GB1573940A true GB1573940A (en) 1980-08-28

Family

ID=5504090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11573/77A Expired GB1573940A (en) 1976-03-30 1977-03-18 Extrusion head incorporating a mixing means

Country Status (4)

Country Link
DD (1) DD126550A1 (enrdf_load_stackoverflow)
DE (1) DE2703922A1 (enrdf_load_stackoverflow)
GB (1) GB1573940A (enrdf_load_stackoverflow)
SU (1) SU870171A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193921B (en) * 1986-08-15 1990-03-21 Polysystem Machinery Mfg Extrusion die for blown plastic film
GB2253807A (en) * 1991-03-22 1992-09-23 Reifenhaeuser Masch A tool head for the extrusion of rigid or flexible tubular preforms of thermally plasticised plastic material
GB2326613A (en) * 1997-06-23 1998-12-30 Pirelli General Plc Plastics extrusion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU68787A (en) * 1987-04-15 1989-06-30 Stanko Kraaljevic Additional mechanism for vacuuming of rubber firemen's pipes at extruding

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193921B (en) * 1986-08-15 1990-03-21 Polysystem Machinery Mfg Extrusion die for blown plastic film
US5261805A (en) * 1986-08-15 1993-11-16 Polysystem Machinery Manufacturing Inc. Die for extrusion of blown plastic film
GB2253807A (en) * 1991-03-22 1992-09-23 Reifenhaeuser Masch A tool head for the extrusion of rigid or flexible tubular preforms of thermally plasticised plastic material
GB2253807B (en) * 1991-03-22 1994-12-07 Reifenhaeuser Masch A tool head for the extrusion of rigid or flexible tubular preforms of thermally plasticised plastic material
GB2326613A (en) * 1997-06-23 1998-12-30 Pirelli General Plc Plastics extrusion

Also Published As

Publication number Publication date
DE2703922A1 (de) 1977-10-20
DD126550A1 (enrdf_load_stackoverflow) 1977-07-20
SU870171A1 (ru) 1981-10-07

Similar Documents

Publication Publication Date Title
AU628993B2 (en) Continuous extrusion apparatus
US4403934A (en) Coextrusion die
US4201532A (en) Extrusion dies of spiral mandrel type
US7811073B2 (en) Blow head for producing blown tubular film
SU753352A3 (ru) Устройство дл экструзии многоцветных профилей из полимеров
US3956438A (en) Process for extruding a partially foamed thermoplastic product
AU635471B2 (en) Multiple layer die head with adjustable gaps
US10471640B2 (en) Method and device for the manufacture of annular extrudates
US3782870A (en) Apparatus for extruding a partially foamed thermoplastic product
CA2064688A1 (en) Storage head for a blow moulding machine
US4395221A (en) Tubular extrusion apparatus
US5261805A (en) Die for extrusion of blown plastic film
US4509907A (en) Extrusion head for tubular bodies and hollow profiles
EP0626247A1 (en) Internally stacked blown film die
US3270370A (en) Extruded plastic net
EP0656824B1 (en) Distributor head for forming a tubular profile from one or more streams of extruded thermoplastic material
US3762692A (en) Screw extruder for thermoplastic melts with temperature equalizing head
US3677863A (en) Dies for producing multi-layer tubes or films
US3784339A (en) Disk extruder
GB1573940A (en) Extrusion head incorporating a mixing means
US3343215A (en) Deflecting extruder head
AU635470B2 (en) Die head for plastic with barrier forming material
US5208048A (en) Extrusion head for tubular strands of thermoplastified synthetic resin material
US4224272A (en) Blow-molding nozzle and method
EP0091235A2 (en) Improvements in or relating to die heads for extruding plastics materials

Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed