JPS55144135A - Extrusion molding of thermoplastic material - Google Patents

Extrusion molding of thermoplastic material

Info

Publication number
JPS55144135A
JPS55144135A JP5154079A JP5154079A JPS55144135A JP S55144135 A JPS55144135 A JP S55144135A JP 5154079 A JP5154079 A JP 5154079A JP 5154079 A JP5154079 A JP 5154079A JP S55144135 A JPS55144135 A JP S55144135A
Authority
JP
Japan
Prior art keywords
extrusion molding
side wall
molding machine
chamber
thermoplastic material
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.)
Granted
Application number
JP5154079A
Other languages
Japanese (ja)
Other versions
JPS6123090B2 (en
Inventor
Tetsuya Kamijo
Masato Koike
Tsutomu Sano
Kenji Kato
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.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP5154079A priority Critical patent/JPS55144135A/en
Publication of JPS55144135A publication Critical patent/JPS55144135A/en
Publication of JPS6123090B2 publication Critical patent/JPS6123090B2/ja
Granted 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • 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
    • B29C48/76—Venting, drying means; Degassing means
    • 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
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prevent the attachment of fine strips to the side wall of the vacuum deaerating chamber and to improve the appearance of the molding by slicing a thermoplastic material in the chamber with the side wall forcibly cooled after thermally wrought extruded from the first extrusion molding machine. CONSTITUTION:After mixed and melted with the first extrusion molding machine 1, the thermoplastic material such as rubber is extruded into a vacuum deaerating chamber 3 via a breaker 2. Then, the material is sliced with a rotary cutter 4 supported rotatively facing the breaker 2. At this point, the internal temperature of the side wall 3A of the chamber 3 is controlled with a cooling water W to be below 30 deg.C. As a result, even if flying to reach the surface of the side wall 3A, the material thus sliced is little attached to the wall 3A falling striaght on the inlet of the second extrusion molding machine 5. Then, the material undergoes an extrusion molding into a given shape with the second extrusion molding machine 5.
JP5154079A 1979-04-27 1979-04-27 Extrusion molding of thermoplastic material Granted JPS55144135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5154079A JPS55144135A (en) 1979-04-27 1979-04-27 Extrusion molding of thermoplastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5154079A JPS55144135A (en) 1979-04-27 1979-04-27 Extrusion molding of thermoplastic material

Publications (2)

Publication Number Publication Date
JPS55144135A true JPS55144135A (en) 1980-11-10
JPS6123090B2 JPS6123090B2 (en) 1986-06-04

Family

ID=12889850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5154079A Granted JPS55144135A (en) 1979-04-27 1979-04-27 Extrusion molding of thermoplastic material

Country Status (1)

Country Link
JP (1) JPS55144135A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591614A (en) * 1983-02-21 1984-01-07 Tokai Carbon Co Ltd Method for controlling density of carbonaceous material
JPS6141520A (en) * 1984-08-04 1986-02-27 Idemitsu Petrochem Co Ltd Method of kneading and extruding polyolefin resin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591614A (en) * 1983-02-21 1984-01-07 Tokai Carbon Co Ltd Method for controlling density of carbonaceous material
JPH0121768B2 (en) * 1983-02-21 1989-04-24 Tokai Carbon Kk
JPS6141520A (en) * 1984-08-04 1986-02-27 Idemitsu Petrochem Co Ltd Method of kneading and extruding polyolefin resin

Also Published As

Publication number Publication date
JPS6123090B2 (en) 1986-06-04

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