FR2385291A1 - RF heating system for processing resins and plastics - has plastics pipes carrying product through meandering waveguide - Google Patents

RF heating system for processing resins and plastics - has plastics pipes carrying product through meandering waveguide

Info

Publication number
FR2385291A1
FR2385291A1 FR7634467A FR7634467A FR2385291A1 FR 2385291 A1 FR2385291 A1 FR 2385291A1 FR 7634467 A FR7634467 A FR 7634467A FR 7634467 A FR7634467 A FR 7634467A FR 2385291 A1 FR2385291 A1 FR 2385291A1
Authority
FR
France
Prior art keywords
plastics
heating system
waveguide
meandering
pipes carrying
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
FR7634467A
Other languages
French (fr)
Other versions
FR2385291B1 (en
Inventor
Georges Chiron
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.)
Saint Gobain Industries SA
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Industries SA
Compagnie de Saint Gobain 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 Saint Gobain Industries SA, Compagnie de Saint Gobain SA filed Critical Saint Gobain Industries SA
Priority to FR7634467A priority Critical patent/FR2385291A1/en
Publication of FR2385291A1 publication Critical patent/FR2385291A1/en
Application granted granted Critical
Publication of FR2385291B1 publication Critical patent/FR2385291B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The RF heating system is for use in processing dielectrics and in initiating the polymerisation of plastics and resins used for making moulded parts etc. It consists of a meandering rectangular waveguide through which the RF signal propagates and inductively heats the dielectric/resin flowing in two PTFE pipes (19, 19') passing through the meandering waveguide. The waveguide consists of horizontal walls (6) spaced apart and semicircular walls (7, 8) joining the ends of alternate horizontal walls to form a zigzag. The sides of the zigzag are closed by profiled side walls (14).
FR7634467A 1976-11-16 1976-11-16 RF heating system for processing resins and plastics - has plastics pipes carrying product through meandering waveguide Granted FR2385291A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7634467A FR2385291A1 (en) 1976-11-16 1976-11-16 RF heating system for processing resins and plastics - has plastics pipes carrying product through meandering waveguide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7634467A FR2385291A1 (en) 1976-11-16 1976-11-16 RF heating system for processing resins and plastics - has plastics pipes carrying product through meandering waveguide

Publications (2)

Publication Number Publication Date
FR2385291A1 true FR2385291A1 (en) 1978-10-20
FR2385291B1 FR2385291B1 (en) 1980-04-11

Family

ID=9179967

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7634467A Granted FR2385291A1 (en) 1976-11-16 1976-11-16 RF heating system for processing resins and plastics - has plastics pipes carrying product through meandering waveguide

Country Status (1)

Country Link
FR (1) FR2385291A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679722A5 (en) * 1989-12-22 1992-03-31 Siemens Ag Albis Fluid warming device using microwave energy - with fluid line passing through hollow rectangular waveguide supplied with microwaves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679722A5 (en) * 1989-12-22 1992-03-31 Siemens Ag Albis Fluid warming device using microwave energy - with fluid line passing through hollow rectangular waveguide supplied with microwaves

Also Published As

Publication number Publication date
FR2385291B1 (en) 1980-04-11

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Legal Events

Date Code Title Description
ST Notification of lapse