GB1108595A - Improvements relating to casting of high-voltage electrical insulating, etc. - Google Patents

Improvements relating to casting of high-voltage electrical insulating, etc.

Info

Publication number
GB1108595A
GB1108595A GB2042564A GB2042564A GB1108595A GB 1108595 A GB1108595 A GB 1108595A GB 2042564 A GB2042564 A GB 2042564A GB 2042564 A GB2042564 A GB 2042564A GB 1108595 A GB1108595 A GB 1108595A
Authority
GB
United Kingdom
Prior art keywords
resin
mould
valves
container
autoclave
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
GB2042564A
Inventor
Aubrey Smith Townes
Vernon Woods
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and Co Ltd
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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB2042564A priority Critical patent/GB1108595A/en
Priority to DK244765A priority patent/DK118030B/en
Priority to NL6506206A priority patent/NL6506206A/xx
Publication of GB1108595A publication Critical patent/GB1108595A/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
    • 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
    • B29C39/38—Heating or cooling
    • 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
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
    • 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
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
    • 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
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/70—Completely encapsulating inserts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/005—Impregnating or encapsulating
    • 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
    • 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
    • B29K2105/20—Inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • B29L2031/3061—Number plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3412—Insulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1,108,595. Casting resins. A. REYROLLE & CO. Ltd. 10 May, 1965 [15 May, 1964], No. 20425/64. Heading B5A. A solid casting incorporating a resin-impregnated insert, e.g. a high voltage insulation is made by placing the insert, e.g. a laminated paper winding in a mould for the casting, maintaining the mould under partial vacuum and filling it with casting resin so that the insert is impregnated expelling from the mould the resin not absorbed by the insert and then gravity filling the mould with a second resin and curing both resins simultaneously. The second resin may either be the same as the first but containing a filler, or a different resin. The apparatus for carrying out the process comprises an autoclave 10, heated by circulating hot oil through a lining 11, and connected through a valve 14 to a vacuum pump. A mould 20 mounted in the autoclave is connected through valves 32 and 33 to a resin container 30 by a passage 24 leading from the bottom of the mould cavity. In making an epoxy-resin-insulated transformer a paper strip 55 incorporating a high-voltage electrical winding and a conductor 56 are inserted into the mould. The autoclave is evacuated to 0À5 mm. Hg and heated for 11 hours. Epoxy resin mix is stirred by stirrer 43 in the container 30 under the same degree of partial vacuum. Valves 32, 33 are then opened and the epoxy resin passes through passage 24 to fill the mould and rise into reservoir 22. Valves 32, 33 are then closed and the vacuum is maintained in the autoclave for an hour after which bleed-off valve 16 is opened thereby the pressure rises to atmosphere. Valves 32, 33 are then opened and the resin not absorbed by the insert is returned by the differential pressure to the container 30. Valves 32, 33 are closed and bleed valve 41 opened to restore the pressure in the container to atmospheric. Filler and colouring agent are then stirred into the resin mix; the container and autoclave are evacuated to 0À5 mm. Hg and valves 32, 33 opened whereby the filled resin flows into the mould. Valves 32, 33 are closed and the resin cured after which the moulded transformer is removed from the mould by separation of its two halves 20A and 20B. When a different second resin is used, the container 30 is detached at seal 31 and replaced.
GB2042564A 1964-05-15 1964-05-15 Improvements relating to casting of high-voltage electrical insulating, etc. Expired GB1108595A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2042564A GB1108595A (en) 1964-05-15 1964-05-15 Improvements relating to casting of high-voltage electrical insulating, etc.
DK244765A DK118030B (en) 1964-05-15 1965-05-13 Method of making molded high voltage insulators or other molded articles of molded resin and apparatus for carrying out the method.
NL6506206A NL6506206A (en) 1964-05-15 1965-05-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2042564A GB1108595A (en) 1964-05-15 1964-05-15 Improvements relating to casting of high-voltage electrical insulating, etc.

Publications (1)

Publication Number Publication Date
GB1108595A true GB1108595A (en) 1968-04-03

Family

ID=10145753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2042564A Expired GB1108595A (en) 1964-05-15 1964-05-15 Improvements relating to casting of high-voltage electrical insulating, etc.

Country Status (3)

Country Link
DK (1) DK118030B (en)
GB (1) GB1108595A (en)
NL (1) NL6506206A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050101A5 (en) * 1969-06-19 1971-03-26 Ciba Geigy
EP0000755A1 (en) * 1977-08-05 1979-02-21 Walter Schwarz Method and apparatus for making a shaped body from reinforced plastic
EP0118073A1 (en) * 1983-03-02 1984-09-12 VOLTA-WERKE Elektricitäts-GmbH Method of coating metal bodies, particularly overvoltage coils of transformers
FR2561948A1 (en) * 1984-03-27 1985-10-04 Hedrich Vakuumanlagen Wilhelm IMPREGNATION BOILER FOR IMPREGNATING VACUUM OBJECTS
WO1985005069A1 (en) * 1984-05-09 1985-11-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
US4681718A (en) * 1984-05-09 1987-07-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
EP2546792A1 (en) 2011-07-13 2013-01-16 Jenton International Limited A means for confirming timing information relating to transactions through the optical scanning of variable patterns displayed on a graphical display device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103050913A (en) * 2011-10-17 2013-04-17 复盛易利达(上海)压缩机有限公司 Internal wiring device of oil-submerged pump closed container of lubrication system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050101A5 (en) * 1969-06-19 1971-03-26 Ciba Geigy
EP0000755A1 (en) * 1977-08-05 1979-02-21 Walter Schwarz Method and apparatus for making a shaped body from reinforced plastic
EP0118073A1 (en) * 1983-03-02 1984-09-12 VOLTA-WERKE Elektricitäts-GmbH Method of coating metal bodies, particularly overvoltage coils of transformers
FR2561948A1 (en) * 1984-03-27 1985-10-04 Hedrich Vakuumanlagen Wilhelm IMPREGNATION BOILER FOR IMPREGNATING VACUUM OBJECTS
WO1985005069A1 (en) * 1984-05-09 1985-11-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
US4681718A (en) * 1984-05-09 1987-07-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
EP2546792A1 (en) 2011-07-13 2013-01-16 Jenton International Limited A means for confirming timing information relating to transactions through the optical scanning of variable patterns displayed on a graphical display device

Also Published As

Publication number Publication date
DK118030B (en) 1970-06-29
NL6506206A (en) 1965-11-16

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