FR2249756A1 - Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture - Google Patents

Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture

Info

Publication number
FR2249756A1
FR2249756A1 FR7340218A FR7340218A FR2249756A1 FR 2249756 A1 FR2249756 A1 FR 2249756A1 FR 7340218 A FR7340218 A FR 7340218A FR 7340218 A FR7340218 A FR 7340218A FR 2249756 A1 FR2249756 A1 FR 2249756A1
Authority
FR
France
Prior art keywords
mould
blocks
sand
epoxy resin
plastic foam
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
FR7340218A
Other languages
French (fr)
Other versions
FR2249756B3 (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.)
CANNES LA BOCCA SEB
Original Assignee
CANNES LA BOCCA SEB
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 CANNES LA BOCCA SEB filed Critical CANNES LA BOCCA SEB
Priority to FR7340218A priority Critical patent/FR2249756A1/en
Publication of FR2249756A1 publication Critical patent/FR2249756A1/en
Application granted granted Critical
Publication of FR2249756B3 publication Critical patent/FR2249756B3/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • 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
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C33/20—Opening, closing or clamping
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A mould comprises two interchangeable half-mould blocks. held between two horizontal frames connected by tie rods which can be tightened so that the frames clamp the half-mould blocks together. Adjacent faces of the blocks are provided with a seal and are profiled to form mould faces which together define a moulding cavity into which a thermoplastic can be injected through inlet ducts, and one of the mould blocks has a degassing duct through which excess gas can escape from the moulding cavity. Each half-mould block is formed from a layer of a mixture of glass spheres and a plastic foam and a layer (whose free face forms the mould face) of a mixture of sand and epoxy resin. The mould is used for producing boat hulls, vehicle body panels etc. The half-mould blocks are cheap to produce and light and easy to handle.
FR7340218A 1973-11-07 1973-11-07 Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture Granted FR2249756A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7340218A FR2249756A1 (en) 1973-11-07 1973-11-07 Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7340218A FR2249756A1 (en) 1973-11-07 1973-11-07 Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture

Publications (2)

Publication Number Publication Date
FR2249756A1 true FR2249756A1 (en) 1975-05-30
FR2249756B3 FR2249756B3 (en) 1976-09-24

Family

ID=9127627

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7340218A Granted FR2249756A1 (en) 1973-11-07 1973-11-07 Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture

Country Status (1)

Country Link
FR (1) FR2249756A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033950A (en) * 1983-12-14 1991-07-23 Sacmi-Cooperativa Meccanici Imola-Soc. Coop. A R.L. Mold for molding ceramic materials
FR2710288A1 (en) * 1993-09-22 1995-03-31 Renaudet Daniel Composite mould for compression press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033950A (en) * 1983-12-14 1991-07-23 Sacmi-Cooperativa Meccanici Imola-Soc. Coop. A R.L. Mold for molding ceramic materials
FR2710288A1 (en) * 1993-09-22 1995-03-31 Renaudet Daniel Composite mould for compression press

Also Published As

Publication number Publication date
FR2249756B3 (en) 1976-09-24

Similar Documents

Publication Publication Date Title
US4923666B1 (en) Method of injection moulding
ES532382A0 (en) PROCEDURE AND APPARATUS TO PRODUCE A PIECE MOLDED BY INJECTION OF PLASTIC MATERIAL
ATE137685T1 (en) INJECTION MOLDING PROCESS
KR840000274B1 (en) Cast tire and method of manufacturing
FR2249756A1 (en) Injection mould has half moulds of glass sphere/plastic foam mixt. - and mould face is formed by sand/epoxy resin mixture
ES295489A1 (en) Molding process
BR7407458D0 (en) PROCESS TO REDUCE THE TIME OF THE VULCANIZATION CYCLE IN THE INJECTION MOLD OF A RUBBER COMPOUND AND APPARATUS FOR RUBBER INJECTION MOLDING
JPS5686734A (en) Method and device for molding tire
FR2376739A1 (en) Casting silicone rubber moulds for use in injection moulding - by injecting resin around model supported in chase, inverting mould and model above second chase and casting opposite half of mould
JPS56121745A (en) Foaming resin injection molding method
JPS5791241A (en) Injection molding method of thick article
CN100500406C (en) Air pressure forming method for producing glass fibre reinforced plastic
FR2286702A1 (en) Injection moulding article of different materials - by injecting through separate nozzles at independently controlled pressures
JPS576732A (en) Method of molding synthetic resin formed component
JPS57150554A (en) Injection molding with screw and its manufacture
FR2142067A1 (en) Laminated plastic mouldings - with cross-linked resin core and thermoplastic sheath
FR2047967A1 (en) Injection moulding foamed plastic bodies
FR2224339A1 (en) Plastic bicycle saddle - produced by hot forming an injection moulded blank
ES417948A2 (en) Method of moulding an inflatable rubber tube
GB1381639A (en) Method of injection moulding synthetic resins
JPS57173136A (en) Molding method for plastic lens
ES405788A1 (en) Moulds
FR2134134A1 (en) Moulding plastic resins - in which half moulds have semi-cylindrical formations together defining the resin inlet
FR2224282A1 (en) Three part injection mould operates rapidly - two parts with slight relative movement constituting one half mould
FR2073331A1 (en) One shot mouldings incorporating sheet - reinforcement or decoration

Legal Events

Date Code Title Description
CD Change of name or company name
CN Change in juridical nature
ST Notification of lapse