JPS5549978B2 - - Google Patents

Info

Publication number
JPS5549978B2
JPS5549978B2 JP2147878A JP2147878A JPS5549978B2 JP S5549978 B2 JPS5549978 B2 JP S5549978B2 JP 2147878 A JP2147878 A JP 2147878A JP 2147878 A JP2147878 A JP 2147878A JP S5549978 B2 JPS5549978 B2 JP S5549978B2
Authority
JP
Japan
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.)
Expired
Application number
JP2147878A
Other languages
Japanese (ja)
Other versions
JPS54114569A (en
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 filed Critical
Priority to JP2147878A priority Critical patent/JPS54114569A/en
Publication of JPS54114569A publication Critical patent/JPS54114569A/en
Publication of JPS5549978B2 publication Critical patent/JPS5549978B2/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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • 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
    • B29C48/40—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 using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/42—Non-identical or non-mirrored screws
    • 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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/55—Screws having reverse-feeding elements
JP2147878A 1978-02-28 1978-02-28 Screw for biaxial extruder Granted JPS54114569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2147878A JPS54114569A (en) 1978-02-28 1978-02-28 Screw for biaxial extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2147878A JPS54114569A (en) 1978-02-28 1978-02-28 Screw for biaxial extruder

Publications (2)

Publication Number Publication Date
JPS54114569A JPS54114569A (en) 1979-09-06
JPS5549978B2 true JPS5549978B2 (en) 1980-12-15

Family

ID=12056074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2147878A Granted JPS54114569A (en) 1978-02-28 1978-02-28 Screw for biaxial extruder

Country Status (1)

Country Link
JP (1) JPS54114569A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7692292B2 (en) 2003-12-05 2010-04-06 Panasonic Corporation Packaged electronic element and method of producing electronic element package
JP2007019107A (en) * 2005-07-05 2007-01-25 Shinko Electric Ind Co Ltd Semiconductor device and its manufacturing method

Also Published As

Publication number Publication date
JPS54114569A (en) 1979-09-06

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