JPS559848A - Cylindrical net-like foam body manufacturing method - Google Patents

Cylindrical net-like foam body manufacturing method

Info

Publication number
JPS559848A
JPS559848A JP8260178A JP8260178A JPS559848A JP S559848 A JPS559848 A JP S559848A JP 8260178 A JP8260178 A JP 8260178A JP 8260178 A JP8260178 A JP 8260178A JP S559848 A JPS559848 A JP S559848A
Authority
JP
Japan
Prior art keywords
net
foam body
synthetic resin
foaming agent
extrusion press
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
JP8260178A
Other languages
Japanese (ja)
Other versions
JPS5645375B2 (en
Inventor
Tetsuo Komori
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.)
JSP Corp
Original Assignee
JSP Corp
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 JSP Corp filed Critical JSP Corp
Priority to JP8260178A priority Critical patent/JPS559848A/en
Publication of JPS559848A publication Critical patent/JPS559848A/en
Publication of JPS5645375B2 publication Critical patent/JPS5645375B2/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • 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
    • B29C2948/9258—Velocity
    • 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
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To obtain a foam body having a net-like structure and different diameters of net-constituting strand by extruding a molten foaming agent-containing synthetic resin compound from a circular rotary die by changing rotating speed of a screw of an extrusion press. CONSTITUTION:A synthetic resin supplied from a raw material supplying gate 4 is heated, melted and mixed together with a foaming agent in No. 1 Extrusion Press, a foaming agent-containing molten synthetic resin compound is supplied to No. 2 Extrusion Press through a crossbar 6. The material is propelled toward the exit by a screw 8 rotating with speeds changed periodically at a prescribed interval and extruded to a low pressure zone from a circular rotary die 10 rotating at a prescribed rotating speed to form a cylindrical net-like foam body. It is possible, with an easy and simple operation, to obtain a cylindrical net-like foam body having a net-like structure and variable strand diameters. By using this method, it requires neither electromagnetic clutch nor large-scale device. And also it neither causes wear to the machinery nor generates noise.
JP8260178A 1978-07-07 1978-07-07 Cylindrical net-like foam body manufacturing method Granted JPS559848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8260178A JPS559848A (en) 1978-07-07 1978-07-07 Cylindrical net-like foam body manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8260178A JPS559848A (en) 1978-07-07 1978-07-07 Cylindrical net-like foam body manufacturing method

Publications (2)

Publication Number Publication Date
JPS559848A true JPS559848A (en) 1980-01-24
JPS5645375B2 JPS5645375B2 (en) 1981-10-26

Family

ID=13778992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8260178A Granted JPS559848A (en) 1978-07-07 1978-07-07 Cylindrical net-like foam body manufacturing method

Country Status (1)

Country Link
JP (1) JPS559848A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5842430A (en) * 1981-09-07 1983-03-11 Sekisui Plastics Co Ltd Manufacture of resin sheet with ridge
EP1704916A1 (en) * 2005-03-23 2006-09-27 Expo-Net Danmark A/S A contact filter block and a method and an apparatus for producing tubular elements of a contact filter block

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5842430A (en) * 1981-09-07 1983-03-11 Sekisui Plastics Co Ltd Manufacture of resin sheet with ridge
JPS6111779B2 (en) * 1981-09-07 1986-04-04 Sekisui Plastics
EP1704916A1 (en) * 2005-03-23 2006-09-27 Expo-Net Danmark A/S A contact filter block and a method and an apparatus for producing tubular elements of a contact filter block
WO2006099873A1 (en) * 2005-03-23 2006-09-28 Expo-Net Danmark A/S A contact filter block, a method of producing structural elements of a contact filter block and an apparatus for producing structural elements of a contact filter block
AU2006226731B2 (en) * 2005-03-23 2007-11-15 Expo-Net Danmark A/S A contact filter block, a method of producing structural elements of a contact filter block and an apparatus for producing structural elements of a contact filter block
EA013171B1 (en) * 2005-03-23 2010-02-26 Экспо-Нет Дэнмарк А/С A contact filter block, a method of producing structural elements of a contact filter block and an apparatus for producing structural elements of a contact filter block
AU2006226731C1 (en) * 2005-03-23 2010-12-23 Expo-Net Danmark A/S A contact filter block, a method of producing structural elements of a contact filter block and an apparatus for producing structural elements of a contact filter block

Also Published As

Publication number Publication date
JPS5645375B2 (en) 1981-10-26

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