JPH029945Y2 - - Google Patents

Info

Publication number
JPH029945Y2
JPH029945Y2 JP1985042211U JP4221185U JPH029945Y2 JP H029945 Y2 JPH029945 Y2 JP H029945Y2 JP 1985042211 U JP1985042211 U JP 1985042211U JP 4221185 U JP4221185 U JP 4221185U JP H029945 Y2 JPH029945 Y2 JP H029945Y2
Authority
JP
Japan
Prior art keywords
kneading
recess
spiral
raw material
wide
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
JP1985042211U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61158417U (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 JP1985042211U priority Critical patent/JPH029945Y2/ja
Publication of JPS61158417U publication Critical patent/JPS61158417U/ja
Application granted granted Critical
Publication of JPH029945Y2 publication Critical patent/JPH029945Y2/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
    • B29C48/62—Screws characterised by the shape of the thread channel, e.g. U-shaped
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP1985042211U 1985-03-23 1985-03-23 Expired JPH029945Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985042211U JPH029945Y2 (en]) 1985-03-23 1985-03-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985042211U JPH029945Y2 (en]) 1985-03-23 1985-03-23

Publications (2)

Publication Number Publication Date
JPS61158417U JPS61158417U (en]) 1986-10-01
JPH029945Y2 true JPH029945Y2 (en]) 1990-03-13

Family

ID=30552752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985042211U Expired JPH029945Y2 (en]) 1985-03-23 1985-03-23

Country Status (1)

Country Link
JP (1) JPH029945Y2 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT520198B1 (de) 2017-11-16 2019-02-15 Univ Linz Plastifizierschnecke

Also Published As

Publication number Publication date
JPS61158417U (en]) 1986-10-01

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