JPS4878274A - - Google Patents

Info

Publication number
JPS4878274A
JPS4878274A JP47008171A JP817172A JPS4878274A JP S4878274 A JPS4878274 A JP S4878274A JP 47008171 A JP47008171 A JP 47008171A JP 817172 A JP817172 A JP 817172A JP S4878274 A JPS4878274 A JP S4878274A
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.)
Pending
Application number
JP47008171A
Other languages
Japanese (ja)
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 JP47008171A priority Critical patent/JPS4878274A/ja
Publication of JPS4878274A publication Critical patent/JPS4878274A/ja
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
    • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
JP47008171A 1972-01-21 1972-01-21 Pending JPS4878274A (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP47008171A JPS4878274A (no) 1972-01-21 1972-01-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47008171A JPS4878274A (no) 1972-01-21 1972-01-21

Publications (1)

Publication Number Publication Date
JPS4878274A true JPS4878274A (no) 1973-10-20

Family

ID=11685869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47008171A Pending JPS4878274A (no) 1972-01-21 1972-01-21

Country Status (1)

Country Link
JP (1) JPS4878274A (no)

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