JPS54105169A - Device for making synthetic resin foam - Google Patents

Device for making synthetic resin foam

Info

Publication number
JPS54105169A
JPS54105169A JP1152578A JP1152578A JPS54105169A JP S54105169 A JPS54105169 A JP S54105169A JP 1152578 A JP1152578 A JP 1152578A JP 1152578 A JP1152578 A JP 1152578A JP S54105169 A JPS54105169 A JP S54105169A
Authority
JP
Japan
Prior art keywords
pressure
gas
valves
resin
setting
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
JP1152578A
Other languages
Japanese (ja)
Other versions
JPS5810221B2 (en
Inventor
Takashi Shimano
Shintaro Koizumi
Shoichi Nagai
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP53011525A priority Critical patent/JPS5810221B2/en
Publication of JPS54105169A publication Critical patent/JPS54105169A/en
Publication of JPS5810221B2 publication Critical patent/JPS5810221B2/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
    • 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
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/92019—Pressure
    • 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
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
    • 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
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

PURPOSE:A device for making foamed synthetic resins in which a plurality of means for adjusting gas flow rates are connected in parallel and adequately combined to control the gas flows whereby simply selective operation of valves permits the variation of gas-flow levels and foaming extent. CONSTITUTION:A thermoplastic synthetic resin is fed from hopper 16 into barrel 14 and extruded by screw 20 to crosshead 18 where conductor wire 1 is covered with the resin. Meanwhile the gas from supplier 28, whose pressure is controlled to P1 by first and second pressure-controlling valves 30, 34, is further adjusted to pressure P2 by device for setting gas flow 36 and injected from inlet 14 a into barrel 14 to expand the resin. The device for setting pressure 36 is composed of a plurality of means for setting gas flow rates a1, a2, ....an and valves S1, S2....Sn and the individual means is equipped with one of orifices whose sizes differ from each other. An adequate combination of these orifices sets an optional flow rate.
JP53011525A 1978-02-06 1978-02-06 Synthetic resin foam manufacturing equipment Expired JPS5810221B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53011525A JPS5810221B2 (en) 1978-02-06 1978-02-06 Synthetic resin foam manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53011525A JPS5810221B2 (en) 1978-02-06 1978-02-06 Synthetic resin foam manufacturing equipment

Publications (2)

Publication Number Publication Date
JPS54105169A true JPS54105169A (en) 1979-08-17
JPS5810221B2 JPS5810221B2 (en) 1983-02-24

Family

ID=11780376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53011525A Expired JPS5810221B2 (en) 1978-02-06 1978-02-06 Synthetic resin foam manufacturing equipment

Country Status (1)

Country Link
JP (1) JPS5810221B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100641599B1 (en) 2004-07-02 2006-11-10 주식회사 프라코 The Adjustable Method for Gas
KR100654620B1 (en) 2004-06-28 2006-12-08 주식회사 프라코 The Adjustable Method for Gas
KR100654619B1 (en) 2004-06-29 2006-12-08 주식회사 프라코 The Adjustable Method for Gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100654620B1 (en) 2004-06-28 2006-12-08 주식회사 프라코 The Adjustable Method for Gas
KR100654619B1 (en) 2004-06-29 2006-12-08 주식회사 프라코 The Adjustable Method for Gas
KR100641599B1 (en) 2004-07-02 2006-11-10 주식회사 프라코 The Adjustable Method for Gas

Also Published As

Publication number Publication date
JPS5810221B2 (en) 1983-02-24

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