IT1181599B - Procedimento e apparecchiatura per la estrusione continua a soffio di films plastici sottili,in particolare da polvere di pvc,"rigido",anche senza impiego di plastificanti - Google Patents

Procedimento e apparecchiatura per la estrusione continua a soffio di films plastici sottili,in particolare da polvere di pvc,"rigido",anche senza impiego di plastificanti

Info

Publication number
IT1181599B
IT1181599B IT47804/85A IT4780485A IT1181599B IT 1181599 B IT1181599 B IT 1181599B IT 47804/85 A IT47804/85 A IT 47804/85A IT 4780485 A IT4780485 A IT 4780485A IT 1181599 B IT1181599 B IT 1181599B
Authority
IT
Italy
Prior art keywords
plasticants
rigid
equipment
plastic films
thin plastic
Prior art date
Application number
IT47804/85A
Other languages
English (en)
Other versions
IT8547804A0 (it
Inventor
Giancarlo Tramezzani
Original Assignee
Fiap Spa
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 Fiap Spa filed Critical Fiap Spa
Publication of IT8547804A0 publication Critical patent/IT8547804A0/it
Application granted granted Critical
Publication of IT1181599B publication Critical patent/IT1181599B/it

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
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2564—Screw parts
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT47804/85A 1984-12-06 1985-03-13 Procedimento e apparecchiatura per la estrusione continua a soffio di films plastici sottili,in particolare da polvere di pvc,"rigido",anche senza impiego di plastificanti IT1181599B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5818/84A CH661001A5 (en) 1984-12-06 1984-12-06 Process and apparatus for the continuous blow extrusion of thin plastic films from "rigid" PVC powder, even without the use of plasticizers

Publications (2)

Publication Number Publication Date
IT8547804A0 IT8547804A0 (it) 1985-03-13
IT1181599B true IT1181599B (it) 1987-09-30

Family

ID=4299806

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47804/85A IT1181599B (it) 1984-12-06 1985-03-13 Procedimento e apparecchiatura per la estrusione continua a soffio di films plastici sottili,in particolare da polvere di pvc,"rigido",anche senza impiego di plastificanti

Country Status (4)

Country Link
CN (1) CN1005621B (it)
CH (1) CH661001A5 (it)
IT (1) IT1181599B (it)
SU (1) SU1500147A3 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111009353A (zh) * 2019-12-31 2020-04-14 杭州电缆股份有限公司 一种b1级阻燃电力电缆及其生产工艺

Also Published As

Publication number Publication date
CN85101859A (zh) 1987-01-17
SU1500147A3 (ru) 1989-08-07
IT8547804A0 (it) 1985-03-13
CN1005621B (zh) 1989-11-01
CH661001A5 (en) 1987-06-30

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970314