JPS5235978Y2 - - Google Patents

Info

Publication number
JPS5235978Y2
JPS5235978Y2 JP1973040411U JP4041173U JPS5235978Y2 JP S5235978 Y2 JPS5235978 Y2 JP S5235978Y2 JP 1973040411 U JP1973040411 U JP 1973040411U JP 4041173 U JP4041173 U JP 4041173U JP S5235978 Y2 JPS5235978 Y2 JP S5235978Y2
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
JP1973040411U
Other languages
Japanese (ja)
Other versions
JPS49139369U (enrdf_load_html_response
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 JP1973040411U priority Critical patent/JPS5235978Y2/ja
Publication of JPS49139369U publication Critical patent/JPS49139369U/ja
Application granted granted Critical
Publication of JPS5235978Y2 publication Critical patent/JPS5235978Y2/ja
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
    • 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
    • B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
    • B29C48/525—Conical 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
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP1973040411U 1973-04-02 1973-04-02 Expired JPS5235978Y2 (enrdf_load_html_response)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1973040411U JPS5235978Y2 (enrdf_load_html_response) 1973-04-02 1973-04-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973040411U JPS5235978Y2 (enrdf_load_html_response) 1973-04-02 1973-04-02

Publications (2)

Publication Number Publication Date
JPS49139369U JPS49139369U (enrdf_load_html_response) 1974-11-30
JPS5235978Y2 true JPS5235978Y2 (enrdf_load_html_response) 1977-08-16

Family

ID=28165994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1973040411U Expired JPS5235978Y2 (enrdf_load_html_response) 1973-04-02 1973-04-02

Country Status (1)

Country Link
JP (1) JPS5235978Y2 (enrdf_load_html_response)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143767A (en) * 1961-07-06 1964-08-11 Krauss Maffei Ag Multiple screw mixing and extrusion apparatus
GB1132898A (en) * 1965-08-13 1968-11-06 Werner & Pfleiderer Multi-stage screw treatment device

Also Published As

Publication number Publication date
JPS49139369U (enrdf_load_html_response) 1974-11-30

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