SE8603608L - screw - Google Patents

screw

Info

Publication number
SE8603608L
SE8603608L SE8603608A SE8603608A SE8603608L SE 8603608 L SE8603608 L SE 8603608L SE 8603608 A SE8603608 A SE 8603608A SE 8603608 A SE8603608 A SE 8603608A SE 8603608 L SE8603608 L SE 8603608L
Authority
SE
Sweden
Prior art keywords
screw
driven
core
extruder
inlet
Prior art date
Application number
SE8603608A
Other languages
Swedish (sv)
Other versions
SE8603608D0 (en
Inventor
T Akesson
Original Assignee
Hb Strengplast Tore Akesson &
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 Hb Strengplast Tore Akesson & filed Critical Hb Strengplast Tore Akesson &
Priority to SE8603608A priority Critical patent/SE8603608L/en
Publication of SE8603608D0 publication Critical patent/SE8603608D0/en
Publication of SE8603608L publication Critical patent/SE8603608L/en

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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Screw feeder has a stationary core within a cylinder and one or more screw devices which are able to rotate around the core. The screw device can be driven from either the input or output end. The core can be moved axially backwards and forwards. The appts. includes an electrical heating element with an inlet for new materials and an outlet for the plasticised material. When the screw device e.g. a spring is driven from the inlet end the other end is free. The resistance pressure of the spring limits the pressure in the extruder- this is the low pressure mode. When the screw is driven from the other end, the extruder generates in a higher pressure mode.
SE8603608A 1986-08-27 1986-08-27 screw SE8603608L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8603608A SE8603608L (en) 1986-08-27 1986-08-27 screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8603608A SE8603608L (en) 1986-08-27 1986-08-27 screw

Publications (2)

Publication Number Publication Date
SE8603608D0 SE8603608D0 (en) 1986-08-27
SE8603608L true SE8603608L (en) 1988-03-13

Family

ID=20365411

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8603608A SE8603608L (en) 1986-08-27 1986-08-27 screw

Country Status (1)

Country Link
SE (1) SE8603608L (en)

Also Published As

Publication number Publication date
SE8603608D0 (en) 1986-08-27

Similar Documents

Publication Publication Date Title
FR2286575B1 (en)
HK1001282A1 (en) Extrusion apparatus and the use thereof
DE69417213D1 (en) HEATING DEVICE FOR AN EXTRUDER
SE8603608L (en) screw
JPS6419617A (en) Superconductive wire and its manufacture
FI854650A0 (en) KOPPLINGSSTYCKE FOER VATTENBEHANDLINGSANORDNING.
JPS5697123A (en) Terminal control device
GB890507A (en) Screw displacement pump
KR830006727A (en) Numerical control unit with power supply voltage indication
DE58900644D1 (en) SCREW PRESS.
JPS55144136A (en) Extruder
JPS57196623A (en) Output controlling circuit
SU633742A2 (en) Extruder for working polymeric materials
GB1467649A (en) Electronic amplifier
SU1708531A1 (en) Feeding collet
JPS5428035A (en) Sheath heater
ES283344U (en) A cable clip of plastic material, especially for domestic or similar electrical appliances (Machine-translation by Google Translate, not legally binding)
JPS569817A (en) Pulse constant current power source unit
FR2048365A5 (en) Cord with rigid core
JPS535467A (en) Device for preventing swell of discharge line
JPS57114918A (en) Constant voltage power supply circuit
JPS57211833A (en) Majority logic circuit
ES209585U (en) Perfected screw. (Machine-translation by Google Translate, not legally binding)
KR850700123A (en) Clamping device
JPS5217733A (en) Transmission system with interface connection test function

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8603608-4

Effective date: 19910413

Format of ref document f/p: F