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FR2271917A1 - Extrusion die adaptor for admitting a hot fluid lubricant - to reduce haul off stresses or increase extrusion rates - Google Patents

Extrusion die adaptor for admitting a hot fluid lubricant - to reduce haul off stresses or increase extrusion rates

Info

Publication number
FR2271917A1
FR2271917A1 FR7418080A FR7418080A FR2271917A1 FR 2271917 A1 FR2271917 A1 FR 2271917A1 FR 7418080 A FR7418080 A FR 7418080A FR 7418080 A FR7418080 A FR 7418080A FR 2271917 A1 FR2271917 A1 FR 2271917A1
Authority
FR
France
Prior art keywords
extrusion
melt
admitting
stresses
die
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.)
Granted
Application number
FR7418080A
Other languages
French (fr)
Other versions
FR2271917B1 (en
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.)
ATO Chimie SA
Original Assignee
ATO Chimie SA
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 ATO Chimie SA filed Critical ATO Chimie SA
Priority to FR7418080A priority Critical patent/FR2271917A1/en
Publication of FR2271917A1 publication Critical patent/FR2271917A1/en
Application granted granted Critical
Publication of FR2271917B1 publication Critical patent/FR2271917B1/fr
Granted 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/94—Lubricating
    • 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
    • B29C48/06—Rod-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
    • B29C48/03—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

An extrusion die head fitting, esp. for filament and tape mfr., allows a jet of fluid to be introduced between the surface of an extrudate and the die land faces which define the shape and dimensions of the extruded profile. The fitting can accept a preheated fluid and can be adjusted during extrusion to vary the amount of fluid introduced alongside the extrudate entering the die. Higher melt surface temp. reduces the melt drag and hence the tension necessary to draw the melt through the die. The velocity of the air jet can be throttled so that it does not sever the melt as the latter is heated.
FR7418080A 1974-05-24 1974-05-24 Extrusion die adaptor for admitting a hot fluid lubricant - to reduce haul off stresses or increase extrusion rates Granted FR2271917A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7418080A FR2271917A1 (en) 1974-05-24 1974-05-24 Extrusion die adaptor for admitting a hot fluid lubricant - to reduce haul off stresses or increase extrusion rates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7418080A FR2271917A1 (en) 1974-05-24 1974-05-24 Extrusion die adaptor for admitting a hot fluid lubricant - to reduce haul off stresses or increase extrusion rates

Publications (2)

Publication Number Publication Date
FR2271917A1 true FR2271917A1 (en) 1975-12-19
FR2271917B1 FR2271917B1 (en) 1976-12-24

Family

ID=9139227

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418080A Granted FR2271917A1 (en) 1974-05-24 1974-05-24 Extrusion die adaptor for admitting a hot fluid lubricant - to reduce haul off stresses or increase extrusion rates

Country Status (1)

Country Link
FR (1) FR2271917A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040052A3 (en) * 1980-05-12 1982-01-27 Corning Glass Works Adjustable extrusion die
US4485062A (en) * 1983-07-05 1984-11-27 E. I. Du Pont De Nemours And Company Process for extruding polymers
US4592885A (en) * 1980-05-20 1986-06-03 Fuji Photo Film Co., Ltd. Film manufacturing method for improved surface smoothness
CN110549583A (en) * 2018-03-26 2019-12-10 南京法宁格节能科技股份有限公司 Pre-diffusion oil injection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040052A3 (en) * 1980-05-12 1982-01-27 Corning Glass Works Adjustable extrusion die
US4592885A (en) * 1980-05-20 1986-06-03 Fuji Photo Film Co., Ltd. Film manufacturing method for improved surface smoothness
US4485062A (en) * 1983-07-05 1984-11-27 E. I. Du Pont De Nemours And Company Process for extruding polymers
CN110549583A (en) * 2018-03-26 2019-12-10 南京法宁格节能科技股份有限公司 Pre-diffusion oil injection system

Also Published As

Publication number Publication date
FR2271917B1 (en) 1976-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse