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CA818303A - Two-stage extruder - Google Patents

Two-stage extruder

Info

Publication number
CA818303A
CA818303A CA818303A CA818303DA CA818303A CA 818303 A CA818303 A CA 818303A CA 818303 A CA818303 A CA 818303A CA 818303D A CA818303D A CA 818303DA CA 818303 A CA818303 A CA 818303A
Authority
CA
Canada
Prior art keywords
stage extruder
extruder
stage
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.)
Expired
Application number
CA818303A
Inventor
E. Heston Eugene
F. Stroup John
S. Mccormick William
J. Wurgler Heinrich
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.)
NRM Corp
Original Assignee
NRM Corp
Publication date
Application granted granted Critical
Publication of CA818303A publication Critical patent/CA818303A/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
    • 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
    • B29C48/64—Screws with two or more threads
    • B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
CA818303A Two-stage extruder Expired CA818303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA818303T

Publications (1)

Publication Number Publication Date
CA818303A true CA818303A (en) 1969-07-22

Family

ID=36290846

Family Applications (1)

Application Number Title Priority Date Filing Date
CA818303A Expired CA818303A (en) Two-stage extruder

Country Status (1)

Country Link
CA (1) CA818303A (en)

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