FR2234973A1 - Casting large filled epoxy resin mouldings under vacuum - using a cascade between two funnels to devolatilise the resin - Google Patents

Casting large filled epoxy resin mouldings under vacuum - using a cascade between two funnels to devolatilise the resin

Info

Publication number
FR2234973A1
FR2234973A1 FR7323816A FR7323816A FR2234973A1 FR 2234973 A1 FR2234973 A1 FR 2234973A1 FR 7323816 A FR7323816 A FR 7323816A FR 7323816 A FR7323816 A FR 7323816A FR 2234973 A1 FR2234973 A1 FR 2234973A1
Authority
FR
France
Prior art keywords
resin
mixing
under vacuum
degassing
epoxy resin
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
FR7323816A
Other languages
French (fr)
Other versions
FR2234973B3 (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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin 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 Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to FR7323816A priority Critical patent/FR2234973A1/en
Publication of FR2234973A1 publication Critical patent/FR2234973A1/en
Application granted granted Critical
Publication of FR2234973B3 publication Critical patent/FR2234973B3/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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/42—Casting under special conditions, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Mouldings are made by mixing an epoxy resin with all required fillers, catalysts, etc. at ambient pressure and any optimum temp. and then admitting the fluid mixt. from a funnel fitted with a mushroom valve into an evacuated autoclave contg. a mobile mould. The resin mixt. falls freely into a funnel on an opening in the mould inside the autoclave. Esp. suitable for mfr. of large, void free mouldings for e.g. electrical power distribution components. Mixing at atmospheric pressure avoids emulsification which tends to occur if mixing is effected under vacuum, and which inhibits subsequent degassing. Degassing from a falling liq. film. is more efficient than degassing from a bulk resin placed under vaccuum after casting.
FR7323816A 1973-06-28 1973-06-28 Casting large filled epoxy resin mouldings under vacuum - using a cascade between two funnels to devolatilise the resin Granted FR2234973A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7323816A FR2234973A1 (en) 1973-06-28 1973-06-28 Casting large filled epoxy resin mouldings under vacuum - using a cascade between two funnels to devolatilise the resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323816A FR2234973A1 (en) 1973-06-28 1973-06-28 Casting large filled epoxy resin mouldings under vacuum - using a cascade between two funnels to devolatilise the resin

Publications (2)

Publication Number Publication Date
FR2234973A1 true FR2234973A1 (en) 1975-01-24
FR2234973B3 FR2234973B3 (en) 1976-06-18

Family

ID=9121751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323816A Granted FR2234973A1 (en) 1973-06-28 1973-06-28 Casting large filled epoxy resin mouldings under vacuum - using a cascade between two funnels to devolatilise the resin

Country Status (1)

Country Link
FR (1) FR2234973A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374081A (en) * 1981-09-17 1983-02-15 General Electric Co. Cure of epoxy systems at reduced pressures
EP0895844A2 (en) * 1997-08-04 1999-02-10 Bruno Blatt Vessel for resin filling with a closure system
CN107584712A (en) * 2017-09-07 2018-01-16 张东井 A kind of elimination fluid bubbles cast-molding device of suitable large-scale production

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374081A (en) * 1981-09-17 1983-02-15 General Electric Co. Cure of epoxy systems at reduced pressures
EP0895844A2 (en) * 1997-08-04 1999-02-10 Bruno Blatt Vessel for resin filling with a closure system
EP0895844A3 (en) * 1997-08-04 2001-01-03 Bruno Blatt Vessel for resin filling with a closure system
CN107584712A (en) * 2017-09-07 2018-01-16 张东井 A kind of elimination fluid bubbles cast-molding device of suitable large-scale production

Also Published As

Publication number Publication date
FR2234973B3 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse