JPS5561437A - Manufacturing method for thermoplastic resin foamed pipe - Google Patents

Manufacturing method for thermoplastic resin foamed pipe

Info

Publication number
JPS5561437A
JPS5561437A JP13449378A JP13449378A JPS5561437A JP S5561437 A JPS5561437 A JP S5561437A JP 13449378 A JP13449378 A JP 13449378A JP 13449378 A JP13449378 A JP 13449378A JP S5561437 A JPS5561437 A JP S5561437A
Authority
JP
Japan
Prior art keywords
die
pipe
taper
cooling
foaming
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.)
Pending
Application number
JP13449378A
Other languages
Japanese (ja)
Inventor
Nobuhiko Ando
Toshiro Suganuma
Hiroyuki Watanabe
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.)
Toagosei Co Ltd
Original Assignee
Toagosei Co 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 Toagosei Co Ltd filed Critical Toagosei Co Ltd
Priority to JP13449378A priority Critical patent/JPS5561437A/en
Publication of JPS5561437A publication Critical patent/JPS5561437A/en
Pending 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone

Landscapes

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

Abstract

PURPOSE:To provide a subject pipe having a low foaming degree and a high hardness at the outside and a minute and uniform foaming at the interior, by locating a taper die, whose temperature is adjustable, between an extrusion molding die and a pipe cooling die, and by performing a foam-molding as pressure is applied to a hollow. CONSTITUTION:Thermoplastic resin material is countinuously extruded by a screw 1, the extruded resin being fed to a die through a braker plate 2. The resin molten by heating is fed to a taper die 5 via a die point 4. The taper die 5 is adjusted to a proper temperature by means of suitable system such as allows cooling water to flow through the inside, a foaming degree and a crust thickness being decided thereat. The resin expanded and foamed at the taper die 5 is cooled by a cooling die 6 and further by a water bath 7, and thus, a given foamed pipe is produced. As a result of air being then blown from an air blow-in port 9 into a pipe hollow being shut tightly by the caliber cap 8, a foaming-molding is performed as an outer circumference surface of the pipe is pressed ageinst an inside surface of the taper die and of the cooling die.
JP13449378A 1978-11-02 1978-11-02 Manufacturing method for thermoplastic resin foamed pipe Pending JPS5561437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13449378A JPS5561437A (en) 1978-11-02 1978-11-02 Manufacturing method for thermoplastic resin foamed pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13449378A JPS5561437A (en) 1978-11-02 1978-11-02 Manufacturing method for thermoplastic resin foamed pipe

Publications (1)

Publication Number Publication Date
JPS5561437A true JPS5561437A (en) 1980-05-09

Family

ID=15129601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13449378A Pending JPS5561437A (en) 1978-11-02 1978-11-02 Manufacturing method for thermoplastic resin foamed pipe

Country Status (1)

Country Link
JP (1) JPS5561437A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399086A (en) * 1980-03-04 1983-08-16 Swiss Aluminium Ltd. Process for manufacturing foamed plastic sheets
CN104999645A (en) * 2015-06-16 2015-10-28 凤阳九龙新型建材有限公司 PVC pipe production technology
CN116728742A (en) * 2023-08-09 2023-09-12 江苏乾锦塑业科技有限公司 CPVC cable pipe inner and outer wall except that water cooling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399086A (en) * 1980-03-04 1983-08-16 Swiss Aluminium Ltd. Process for manufacturing foamed plastic sheets
CN104999645A (en) * 2015-06-16 2015-10-28 凤阳九龙新型建材有限公司 PVC pipe production technology
CN116728742A (en) * 2023-08-09 2023-09-12 江苏乾锦塑业科技有限公司 CPVC cable pipe inner and outer wall except that water cooling device
CN116728742B (en) * 2023-08-09 2024-02-23 江苏乾锦塑业科技有限公司 CPVC cable pipe inner and outer wall except that water cooling device

Similar Documents

Publication Publication Date Title
US2519375A (en) Method and apparatus for molding tubing
US4088724A (en) External sizing and cooling of extruded tubular profiles of thermoplastic material
US3426111A (en) Method and apparatus for the production of foam plastic sheet
ES439232A1 (en) Process for producing molded structural foam article having a surface that reproducibly and faithfully replicates the surface of the mold
ES8701588A1 (en) Method for making hollow articles of thermoplastic material.
GB1009842A (en) Method and apparatus for producing sheets of foamed plastics material
ES407476A1 (en) Method for making structural foam profiles
FI833522A0 (en) FRAME RELEASE FRAME RELEASE PLUMBING
US3121760A (en) Method of extruding polystyrene tube
US2156508A (en) Process of making sponge rubber
JPS5561437A (en) Manufacturing method for thermoplastic resin foamed pipe
US3142865A (en) Method and apparatus for producing thermoplastic tubing and sheeting
GB1441657A (en) Blow moulding of plastics preforms
JPS572735A (en) Manufacture of foamed thermoplastic resin molded body
US3724976A (en) Fluid distributor for use in extruding foamed polymeric materials
ES8607105A1 (en) Extrusion and blowing of a hollow body of plastics material
US3632266A (en) Continuous apparatus for extruding and forming thermoplastic articles
JPS5678944A (en) Method and apparatus for heating opening portion of neck mold
US3803278A (en) Deep-drawable polystyrene foam sheets
JPS55156033A (en) Skin attached foamed blow molded article method of fabricating the same
JPS5724221A (en) Manufacture of highly foamed polypropylene
GB783449A (en) Improvements in or relating to the extrusion of organic thermoplastic materials
JPS5573532A (en) Production of formed polystyrene bead foam having surface layer with rugged pattern such as crepe
JPS57181834A (en) Method and apparatus for molding synthetic resin foam
JPS55158942A (en) Method and apparatus for producing foamed sheet