FI884141A - ANORDNING VID PLASTEXTRUDER. - Google Patents

ANORDNING VID PLASTEXTRUDER. Download PDF

Info

Publication number
FI884141A
FI884141A FI884141A FI884141A FI884141A FI 884141 A FI884141 A FI 884141A FI 884141 A FI884141 A FI 884141A FI 884141 A FI884141 A FI 884141A FI 884141 A FI884141 A FI 884141A
Authority
FI
Finland
Prior art keywords
mould
grooves
channels
calibration device
width
Prior art date
Application number
FI884141A
Other languages
Finnish (fi)
Other versions
FI81299C (en
FI884141A0 (en
FI81299B (en
Inventor
Per Boen
Original Assignee
Soennichsen Roervalseverk
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
Priority claimed from NO833433A external-priority patent/NO156679C/en
Application filed by Soennichsen Roervalseverk filed Critical Soennichsen Roervalseverk
Publication of FI884141A0 publication Critical patent/FI884141A0/en
Publication of FI884141A publication Critical patent/FI884141A/en
Application granted granted Critical
Publication of FI81299B publication Critical patent/FI81299B/en
Publication of FI81299C publication Critical patent/FI81299C/en

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Arrangement in an extrusion machine 1 for extruding circular cylindrical plastic pipe, the inner surface of which is smooth and the outer surface of which is provided with channels, comprising a feed screw 2 for conveying and softening the plastic material 4 and an annular nozzle, which has a central mould core 6. The mould core forms a cylindrical coaxial extension of the feed screw. The mould part 8 of the nozzle is provided with one or more parallel helical grooves 14, which run in the direction of rotation of the screw and the mould core, and with a lubrication device 17 for lubrication of the mould surface of the mould part. A calibration device 22 with helical grooves 28 is arranged downstream of the annular nozzle. The width of the grooves 28 of the calibration device 27 in the axial direction is greater than the width of the channels cast in the mould 8. The grooves 28 may also have a greater radial height than the channels 15 of the pipe 16 to be formed. The grooves 28 of the calibration device 27 receive the coolant directly through the opening or openings 30 in the calibration casing 31. <IMAGE>
FI884141A 1983-09-23 1988-09-08 ANORDNING VID PLASTEXTRUDER. FI81299C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
NO833433A NO156679C (en) 1983-09-23 1983-09-23 DEVICE FOR PLASTIC EXTRUSTS.
NO833433 1983-09-23
NO8400035 1984-09-18
PCT/NO1984/000035 WO1985001244A1 (en) 1983-09-23 1984-09-18 Extruder assembly
FI851984A FI79971C (en) 1983-09-23 1985-05-17 Extruder
FI851984 1985-05-17

Publications (4)

Publication Number Publication Date
FI884141A0 FI884141A0 (en) 1988-09-08
FI884141A true FI884141A (en) 1988-09-08
FI81299B FI81299B (en) 1990-06-29
FI81299C FI81299C (en) 1990-10-10

Family

ID=26157764

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884141A FI81299C (en) 1983-09-23 1988-09-08 ANORDNING VID PLASTEXTRUDER.

Country Status (1)

Country Link
FI (1) FI81299C (en)

Also Published As

Publication number Publication date
FI81299C (en) 1990-10-10
FI884141A0 (en) 1988-09-08
FI81299B (en) 1990-06-29

Similar Documents

Publication Publication Date Title
EP0512146B1 (en) Food extruder machine
KR870008687A (en) Ribbed pipe manufacturing method and apparatus
ES2021648B3 (en) DEVICE FOR THE MANUFACTURE OF PLASTIC MOLDS.
GB634071A (en) Improvements in or relating to moulding plastic materials by extrusion
GB1040956A (en) Screw extruder for plastics compositions, for example thermoplastics
GB1301628A (en)
GB1246726A (en) Improvements in or relating to the extrusion of compound strand articles
US3762692A (en) Screw extruder for thermoplastic melts with temperature equalizing head
US3889932A (en) Worm throttle means
IT1181222B (en) EXTRUDER GROUP
US4017244A (en) Device for the molding of corrugated pipe from extruded thermoplastic materials
FI884141A (en) ANORDNING VID PLASTEXTRUDER.
US2803042A (en) Apparatus for extruding tubes of fibrous material
US3203048A (en) Cylinder presses, especially for working up synthetic substances
FI893383A0 (en) ANORDING FOR FRAMING A CAMP.
US3308509A (en) Extrusion die
JPS58380B2 (en) Extrusion molding equipment for oil-containing polymer materials
JP2628720B2 (en) Extrusion molding equipment
ES8300284A1 (en) Mixing and homogenizing apparatus for transfer moulding presses and extruders for thermoplastic materials, comprising a plasticizing chamber and a plasticizing screw
JPH05502629A (en) Lubricating device for plastic extrusion molding machine
JPS6339063Y2 (en)
JPS55139229A (en) Preparation of spiral tube reinforced with rib
JPH0244988Y2 (en)
JPS54159469A (en) Crosshead of extruder
KR920007908Y1 (en) Flow head for extrusion die

Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: A/S SOENNICHSEN ROERVALSEVERK