GB1336198A - Extruding machines for plastics - Google Patents

Extruding machines for plastics

Info

Publication number
GB1336198A
GB1336198A GB5625471A GB5625471A GB1336198A GB 1336198 A GB1336198 A GB 1336198A GB 5625471 A GB5625471 A GB 5625471A GB 5625471 A GB5625471 A GB 5625471A GB 1336198 A GB1336198 A GB 1336198A
Authority
GB
United Kingdom
Prior art keywords
die
plastics
die member
dec
discharge
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
GB5625471A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1336198A publication Critical patent/GB1336198A/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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • 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
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1336198 Discharge treatment of plastics J WALTER 3 Dec 1971 [11 Dec 1970] 56254/71 Heading H1X [Also in Division B5] To improve adhesion to its surface a thermoplastics sheet 5 is treated, while it is being extruded through a die passage 4, with a corona discharge created by a high voltage (e.g. 30,000 volts) between one die member 3 and an electrode 10 attached to an insulating block 7 fitted into a recess 6 in the other die member 2, discharge to die member 2 being prevented by an insulated guard 13. The die members 2, 3 are earthed and may have parallel or co-axial faces.
GB5625471A 1970-12-11 1971-12-03 Extruding machines for plastics Expired GB1336198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7044650A FR2116910A5 (en) 1970-12-11 1970-12-11 PROCESS FOR THE CONTINUOUS TREATMENT OF THE SURFACE OF A LAYER OF MATERIAL, IN PARTICULAR PLASTIC, AND DEVICE FOR IMPLEMENTING THIS PROCESS

Publications (1)

Publication Number Publication Date
GB1336198A true GB1336198A (en) 1973-11-07

Family

ID=9065610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5625471A Expired GB1336198A (en) 1970-12-11 1971-12-03 Extruding machines for plastics

Country Status (5)

Country Link
CA (1) CA962226A (en)
DE (1) DE2160860A1 (en)
FR (1) FR2116910A5 (en)
GB (1) GB1336198A (en)
IT (1) IT943228B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890002565B1 (en) * 1982-10-08 1989-07-18 도오요오 보오세끼 가부시끼가이샤 Method for preparing high adhesive polyolefin
DE4212549C1 (en) * 1992-04-15 1993-02-11 Maschinenfabrik Windmoeller & Hoelscher, 4540 Lengerich, De
DE102005030691A1 (en) * 2005-06-29 2007-01-11 Ahlbrandt System Gmbh Increasing surface tension in flat plastic structure surfaces, comprises using a corona discharge technique

Also Published As

Publication number Publication date
FR2116910A5 (en) 1972-07-21
DE2160860A1 (en) 1972-06-22
CA962226A (en) 1975-02-04
IT943228B (en) 1973-04-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees