JPS5131824B2 - - Google Patents

Info

Publication number
JPS5131824B2
JPS5131824B2 JP47032794A JP3279472A JPS5131824B2 JP S5131824 B2 JPS5131824 B2 JP S5131824B2 JP 47032794 A JP47032794 A JP 47032794A JP 3279472 A JP3279472 A JP 3279472A JP S5131824 B2 JPS5131824 B2 JP S5131824B2
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
JP47032794A
Other languages
Japanese (ja)
Other versions
JPS48100479A (enrdf_load_stackoverflow
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 JP47032794A priority Critical patent/JPS5131824B2/ja
Publication of JPS48100479A publication Critical patent/JPS48100479A/ja
Publication of JPS5131824B2 publication Critical patent/JPS5131824B2/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
    • B29C48/565—Screws having projections other than the thread, e.g. pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
JP47032794A 1972-04-01 1972-04-01 Expired JPS5131824B2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP47032794A JPS5131824B2 (enrdf_load_stackoverflow) 1972-04-01 1972-04-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47032794A JPS5131824B2 (enrdf_load_stackoverflow) 1972-04-01 1972-04-01

Publications (2)

Publication Number Publication Date
JPS48100479A JPS48100479A (enrdf_load_stackoverflow) 1973-12-18
JPS5131824B2 true JPS5131824B2 (enrdf_load_stackoverflow) 1976-09-09

Family

ID=12368744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47032794A Expired JPS5131824B2 (enrdf_load_stackoverflow) 1972-04-01 1972-04-01

Country Status (1)

Country Link
JP (1) JPS5131824B2 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567863B2 (enrdf_load_stackoverflow) * 1974-03-23 1981-02-20
JPS5339360A (en) * 1976-09-22 1978-04-11 Furukawa Electric Co Ltd Method of producing bridged polyolefin mold
JPS6337915A (ja) * 1986-07-31 1988-02-18 Sekisui Plastics Co Ltd 熱可塑性樹脂発泡体の製法
US9011131B2 (en) 2010-03-11 2015-04-21 Rms Equipment Llc Lug type extruder screw
JP6846243B2 (ja) * 2017-03-10 2021-03-24 マクセル株式会社 発泡成形体の製造方法及び製造装置

Also Published As

Publication number Publication date
JPS48100479A (enrdf_load_stackoverflow) 1973-12-18

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