GB1247903A - A method of producing cast forms from preformed panels - Google Patents

A method of producing cast forms from preformed panels

Info

Publication number
GB1247903A
GB1247903A GB3878568A GB3878568A GB1247903A GB 1247903 A GB1247903 A GB 1247903A GB 3878568 A GB3878568 A GB 3878568A GB 3878568 A GB3878568 A GB 3878568A GB 1247903 A GB1247903 A GB 1247903A
Authority
GB
United Kingdom
Prior art keywords
panel
mould box
sides
holes
closed
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
GB3878568A
Inventor
Ian Frederick Bowers
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.)
Pressed Steel Fisher Ltd
Original Assignee
Pressed Steel Fisher 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 Pressed Steel Fisher Ltd filed Critical Pressed Steel Fisher Ltd
Priority to GB3878568A priority Critical patent/GB1247903A/en
Priority to DE19691957012 priority patent/DE1957012A1/en
Priority to FR6940180A priority patent/FR2067929A5/fr
Publication of GB1247903A publication Critical patent/GB1247903A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • B29C33/3892—Preparation of the model, e.g. by assembling 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • 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
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/06—Concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1,247,903. Moulding moulds. PRESSED STEEL FISHER Ltd. 10 June, 1969 [10 June, 1968; 14 Aug., 1968], Nos. 27551/68 and 38785/68. Heading B5A. A vacuum forming tool 21 is cast from refractory cement, plaster of Paris, or synthetic resin, against a configural moulding surface comprising a preformed sheet steel panel 14, which is located in a mould box 11 above foamed synthetic plastics material 18 which at least partially comprises a closed or mainly closed cell formulation which has been formed within the mould box 11 containing the panel 14. In the embodiment shown, the panel 14 is tack welded by brackets 17 to a sheet steel mould base 13 and the material 18, which wholly comprises a closed or mainly closed cell urethane foam, is trimmed by a knife or saw, after removal of the mould box sides 12, in the regions in which during the forming thereof it rises around the panel sides and above panel holes 15 and 16. Venting passages in the tool 21 are formed by steel rods 19, which locate through the holes 15 and support tubes 20, either via blobs of petroleum jelly, or via spring contact therewith if the rods 19 are bowed. After replacing the mould box sides 12 and spraying the exposed surfaces of the panel 14 and foam 18 with silicone release agent, the tool 21 is cast from refractory cement poured into the mould box and intially vibrated to remove entrapped air. In an alternative embodiment, the brackets 17 are replaced by a packing of adhesive coated expanded polystyrene beads, and the closed or mainly closed cell formulation is introduced around the sides and through the holes in the panel 14 to fill any remaining voids.
GB3878568A 1968-06-10 1968-06-10 A method of producing cast forms from preformed panels Expired GB1247903A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3878568A GB1247903A (en) 1968-06-10 1968-06-10 A method of producing cast forms from preformed panels
DE19691957012 DE1957012A1 (en) 1968-06-10 1969-11-13 Process for the production of molds from preformed plates
FR6940180A FR2067929A5 (en) 1968-06-10 1969-11-21

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3878568A GB1247903A (en) 1968-06-10 1968-06-10 A method of producing cast forms from preformed panels
GB2755168 1968-06-10

Publications (1)

Publication Number Publication Date
GB1247903A true GB1247903A (en) 1971-09-29

Family

ID=26258876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3878568A Expired GB1247903A (en) 1968-06-10 1968-06-10 A method of producing cast forms from preformed panels

Country Status (3)

Country Link
DE (1) DE1957012A1 (en)
FR (1) FR2067929A5 (en)
GB (1) GB1247903A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276245A (en) * 1979-08-22 1981-06-30 Owens-Corning Fiberglas Corporation Method of making and using molds for longitudinally curved sections of pipe insulation
EP0979717A1 (en) * 1998-08-05 2000-02-16 STOLA S.p.A. Method for the manufacture of a mould for use in injection moulding of components of plastic material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276245A (en) * 1979-08-22 1981-06-30 Owens-Corning Fiberglas Corporation Method of making and using molds for longitudinally curved sections of pipe insulation
EP0979717A1 (en) * 1998-08-05 2000-02-16 STOLA S.p.A. Method for the manufacture of a mould for use in injection moulding of components of plastic material

Also Published As

Publication number Publication date
DE1957012A1 (en) 1971-05-19
FR2067929A5 (en) 1971-08-20

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