JPS5495662A - Coathanger die for extrusion - Google Patents

Coathanger die for extrusion

Info

Publication number
JPS5495662A
JPS5495662A JP184578A JP184578A JPS5495662A JP S5495662 A JPS5495662 A JP S5495662A JP 184578 A JP184578 A JP 184578A JP 184578 A JP184578 A JP 184578A JP S5495662 A JPS5495662 A JP S5495662A
Authority
JP
Japan
Prior art keywords
die
width
land
slit
center
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.)
Pending
Application number
JP184578A
Other languages
Japanese (ja)
Inventor
Hiroshi Makishima
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
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 by Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP184578A priority Critical patent/JPS5495662A/en
Publication of JPS5495662A publication Critical patent/JPS5495662A/en
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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:A coathanger die, designed to extrude a high-viscosity resin into a broad sheet with uniform thickness distribution, comprising the limited size die. CONSTITUTION:A coathunger die comprising the entrance 1 of a pipe of rectangular crossection, longer in the width direction, having a ratio of the width to length of 2-5. The diameter of the manifold 2 is made equal to the maximum land width. the slit width H(x) of the die land 3 is a functional curve of a distance from the die center (x) and shown by the formula I: [Yo is the height of the die land at the center of the die (x=o); Ho is the width of the slit at x=o; n is a non-Newtonian index]
JP184578A 1978-01-13 1978-01-13 Coathanger die for extrusion Pending JPS5495662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP184578A JPS5495662A (en) 1978-01-13 1978-01-13 Coathanger die for extrusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP184578A JPS5495662A (en) 1978-01-13 1978-01-13 Coathanger die for extrusion

Publications (1)

Publication Number Publication Date
JPS5495662A true JPS5495662A (en) 1979-07-28

Family

ID=11512877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP184578A Pending JPS5495662A (en) 1978-01-13 1978-01-13 Coathanger die for extrusion

Country Status (1)

Country Link
JP (1) JPS5495662A (en)

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