JPH02196625A - Manufacture of moldings using composite material and products manufactured by said method - Google Patents

Manufacture of moldings using composite material and products manufactured by said method

Info

Publication number
JPH02196625A
JPH02196625A JP1258963A JP25896389A JPH02196625A JP H02196625 A JPH02196625 A JP H02196625A JP 1258963 A JP1258963 A JP 1258963A JP 25896389 A JP25896389 A JP 25896389A JP H02196625 A JPH02196625 A JP H02196625A
Authority
JP
Japan
Prior art keywords
layers
composite material
resistive element
layer
heating
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.)
Pending
Application number
JP1258963A
Other languages
Japanese (ja)
Inventor
Roger Pascal
ロジェ　パスカル
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPH02196625A publication Critical patent/JPH02196625A/en
Pending 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0272—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using lost heating elements, i.e. heating means incorporated and remaining in the formed article
    • 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
    • B29C51/42—Heating or cooling
    • B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/344—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a woven or non-woven fabric or being a mesh
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould 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
    • 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
    • B29C51/14—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 using multilayered preforms or sheets
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3436—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising independent continuous fibre-reinforcements
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3484—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic
    • B29C65/3492—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic being carbon
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: To reduce the consumption of energy required in heating by heating a resistance element and the layer of a composite material adjacent thereto by Jouble effect and setting the temp. of the binding resin of the layer to desired melting temp. CONSTITUTION: A thin resistance element 3 is held between composite material layers 1, 2 in a sandwiched state. This thin resistance element 3 is constituted of parallel yarns, for example, made of a conductive material such as copper or steel and regular and uniform heat distribution can be obtained by Joule effect. When the extension parts 3a, 3b of the thin resistance element 3 are connected to the terminal of a DC or AC power supply 4 to supply a current to the extension parts 3a, 3b, the element is heated and the generated heat is transferred to the interiors of the composite material layers 1, 2 to soften a thermoplastic resin including a composite material. This heating operation is performed in the opened molds of a molding press shown by a punch mold 5 and a matrix 6.

Description

【発明の詳細な説明】 本発明は、結合用樹脂を含む少なくともｌの複合材料層
からなる。適宜な形状の複合材料製品の製造方法、なら
びにこの方法によって得られる製品に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention consists of at least l composite material layers containing a bonding resin. The present invention relates to a method for manufacturing a composite material product having an appropriate shape, and a product obtained by this method.

熱可塑性樹脂を予め含浸させた積層品を製造するために
は１例えば、ガラスｍ１ｌｌｉｌ熱可塑性樹脂型の複合
材料層を積み重ねることから始め、次いで、この積み重
ねによって得た積層体を熱ＩＩＩ’ｒｍ性材料の融点よ
りも高い温度に加熱することにより、また製造品に付与
したいと望む形状を有する母型とパンチ型との間で、該
積層体に圧力を加えることにより、製造する製品の成形
を行なう、この成形作業は２段階、すなわち：　（１）
樹脂の融点よりも高い温度、例えば３３０″Ｃに該積層
体を予熱すること；および（２）次いで、この温度まで
熱した積層体を低温に保ったパンチ型と母型との間で型
打作業を行なうことによって実現することができる。こ
の２段階成形方法は、予熱段階の後に、該積層体を迅速
に移動させて該パンチ型と母型との間にもってこなけれ
ばならないこと、かつ、その後、該母型に対して正しい
心合わせを行なわなければならないことなどの欠点を有
し、これにより作業が格別難しくなる。この欠点を改善
するために、単一工程で成形作業を行なうことができる
。つまり、この単一工程は、室温状態にある積層体をプ
レス型内に置き１次いで該成形型を閉じてプレスを行な
った後加熱し、それにより積層を構成する複合材料をそ
の融点よりも高い温度１例えば、約１５０℃ないし２０
０℃に加熱して成形するものである。加熱作業をプレス
型内で行なうこのような方法は、投入する材料が多量で
あるため、材料の加熱に費やすエネルギーおよび適宜な
温度に到達するまでに要する時間が上記の場合よりも極
めて大きいという欠点を有する。In order to produce a laminate pre-impregnated with a thermoplastic resin, one begins by stacking composite layers of, for example, glass m1llil thermoplastic resin type, and then the laminate obtained by this stacking is subjected to a thermal III'rm process. The product to be manufactured is shaped by heating it to a temperature higher than the melting point of the material and by applying pressure to the laminate between a matrix and a punch die having the shape desired to be imparted to the product. This molding operation is carried out in two stages, namely: (1)
(2) Preheating the laminate to a temperature higher than the melting point of the resin, for example 330"C; and (2) then stamping the laminate heated to this temperature between a punch die and a matrix kept at a low temperature. This two-step forming method requires that, after the preheating step, the laminate must be quickly moved between the punch mold and the matrix; , it has disadvantages such as the need to perform correct centering with respect to the matrix afterwards, which makes the work extremely difficult.In order to improve this disadvantage, it is necessary to carry out the molding operation in a single step. That is, this single step involves placing the laminate at room temperature in a press mold, then closing the mold, pressing, and heating, thereby heating the composite material making up the laminate to its melting point. Temperatures higher than 1, e.g. about 150°C to 20°C
It is molded by heating to 0°C. Such a method, in which the heating operation is carried out in the press mold, has the disadvantage that, because of the large amount of material input, the energy expended in heating the material and the time required to reach the appropriate temperature are significantly greater than in the above-mentioned case. has.

本発明は、実施が容易て、かつ加熱に要するエネルギー
の消費を著しく低減することができるとともに、増大す
る生産のテンポに合った製造方法を提供して上記の欠点
を改善しようとするものである。The present invention aims to improve the above-mentioned drawbacks by providing a manufacturing method that is easy to implement, can significantly reduce the energy consumption required for heating, and is compatible with the increasing pace of production. .

この目的のために、結合用樹脂を含む少なくともｌの複
合材料層からなり、成形型内で加圧することにより線層
を変形させて、製造する製品の所望の形状を与えるよう
にするとともに、加圧操作の前および／または該操作の
間、線層を加熱することからなる、任意形状の複合材料
製品を製造する方法は、該加圧操作に先立ち、少なくと
も１の薄い抵抗素子を該複合材料層と接触させ、かつ加
熱操作の間、該薄い抵抗素子に通電して、該抵抗素子な
らびにそれに隣接する複合材料層をジュール効果により
加熱するとともに、核層の結合用樹脂の温度を所望の溶
融温度にすることを特徴とするものである。For this purpose, it consists of at least l composite material layers containing a bonding resin, the linear layers being deformed by applying pressure in a mold to give the desired shape of the product to be manufactured, and A method of manufacturing a composite article of arbitrary shape comprising heating a wire layer before and/or during a pressing operation, the method comprises: heating a wire layer before and/or during a pressing operation, the method comprises: heating a wire layer prior to said pressing operation; in contact with the layer and during the heating operation, the thin resistive element is energized to heat it and the composite layer adjacent thereto by the Joule effect and to raise the temperature of the bonding resin of the core layer to the desired melting point. It is characterized by adjusting the temperature.

本発明の方法は、熱可塑性樹脂または熱硬化性樹脂を含
浸させた複合材料層を用いて実施することができる。第
一の場合、すなわち結合用樹脂が熱＋ｙ＋塑性である場
合、該結合用樹脂を柔らかくするため、加圧操作に先立
って、または加圧操作中に、１または複数枚の複合材料
層を、抵抗素子とともに加熱し１次いで成形品を放冷し
て確実に硬化させる。第二の場合、すなわち該結合用樹
脂が熱硬化性である場合、先ず始めに、１または複数枚
の複合材料層を抵抗素子とともに加圧して核層に所望の
形状を付与し１次いで該結合用樹脂を硬化させるために
。The method of the invention can be carried out using a composite layer impregnated with a thermoplastic or thermoset resin. In the first case, i.e. when the bonding resin is thermo+y+plastic, one or more composite layers are applied prior to or during the pressing operation in order to soften the bonding resin. The molded product is heated together with the resistance element, and then the molded product is allowed to cool to ensure hardening. In the second case, where the bonding resin is thermosetting, one or more composite material layers are first pressed together with a resistive element to give the core layer the desired shape; For curing resins.

成形したｌまたは複数の層を加熱する。Heat the formed layer or layers.

加熱段階て使用する薄い抵抗素子は、銅、鋼、コンスタ
ンタン、フェロニッケル、アルミニウム、さらに炭素繊
維または炭素系のような導電性材料の糸で構成すること
ができる。これら導電性材料の糸は鎖糸を平行に並べて
網状に構成するか、あるいは格子状、織布状、または不
織布状に構成することができる。さらに、金属粉を用い
ることもできる。The thin resistive elements used in the heating step can be constructed from threads of conductive materials such as copper, steel, constantan, ferronickel, aluminum, and even carbon fiber or carbon-based materials. These conductive material threads may be constructed in the form of a net by arranging chain threads in parallel, or may be constructed in the form of a lattice, a woven fabric, or a non-woven fabric. Furthermore, metal powder can also be used.

本発明の特に有利な一実施態様によれば、この薄い抵抗
素子は炭素繊維の不織マットで構成され、該炭素繊維の
長さは、例えば約６ないし２４思量である。According to one particularly advantageous embodiment of the invention, this thin resistance element is composed of a non-woven mat of carbon fibers, the length of which is, for example, about 6 to 24 fibers.

以下に、本発明の一実施態様を添付の図面を参照して説
明するか、本発明はこの実施例に限定されるものではな
い。Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to this embodiment.

第１図は、本発明による方法の様々な工程を示す概略図
である。FIG. 1 is a schematic diagram illustrating the various steps of the method according to the invention.

本発明による積層品の製造方法は、その第１段階Ａにお
いて、任意の数の複合材料層を積み重ねて積層を形成す
る作業を含む、第１図において、複合材料層１、２は２
枚のみ示しであるが、もちろん２以上の任意の積層数で
この第１段階を始めることができる。これらの複合材料
層は、粒状、繊維状などの外観を呈する比較的中実（ソ
リッド）な材料から成るものであり、この材料は基体（
マトリックス）を形成する結合用樹脂内に分散される。The method for manufacturing a laminate according to the present invention includes, in its first step A, stacking an arbitrary number of composite material layers to form a laminate. In FIG. 1, composite material layers 1 and 2 are
Although only one layer is shown, it is of course possible to start this first step with any number of layers greater than or equal to two. These composite material layers consist of a relatively solid material with a granular or fibrous appearance, and this material is a substrate (
dispersed within a bonding resin forming a matrix).

−例として、このような複合材料は熱可塑性または熱硬
化性の結合用樹脂内に分散された無機質繊維で構成され
る。熱ＯＴ塑性樹脂の例としては、ポリスチレン、ポリ
アミド、ビニルモノマー、ＥＶＡ　（エチレンビニルア
セテート）のようなビニルの共重合体、高い弾性係数を
有する熱可塑性樹脂、ポリエチレン／ポリエーテルエー
テルケトン、ポリエーテルスルホン、ポリカーボネート
などが挙げられる。- By way of example, such composite materials are composed of inorganic fibers dispersed within a thermoplastic or thermosetting bonding resin. Examples of thermo-OT plastics include polystyrene, polyamide, vinyl monomers, copolymers of vinyl such as EVA (ethylene vinyl acetate), thermoplastics with high elastic modulus, polyethylene/polyetheretherketone, polyethersulfone. , polycarbonate, etc.

複数枚の層を用いて本発明の方法を実施するには、２の
複合材料層１、２の間に、薄い抵抗素子３をサンドイッ
チ状に挟む、この薄い抵抗素子３は核層１、２の全表面
上に延在し、かつ鎖部から一方向へ僅かに延び出ており
、最終的な加熱操作の際、電気的接続を可能にする延長
部分３ａ、３ｂを形成する。この薄い抵抗素子は１例え
ば、銅、鋼、フェロニッケル、コンスタンタン、あるい
は炭素繊維のような導電性材料でできている平行な糸で
構成することかできる。また、この抵抗素子は格子、フ
リース、また例えば炭素繊維の不織マットで構成するこ
ともできる。このような繊維は適宜な結合材を用いて凝
結させることがてきる。炭素繊維はポリアクリロニトリ
ルを主成分とするものが好ましい、このような炭素繊維
のマットを加熱素子として用いると、該２の層１、２の
間にある組立平面全体にわたって、ジュール効果により
、規則的でかつ均一な熱の分配が得られるという利点が
ある。To carry out the method of the invention with multiple layers, a thin resistive element 3 is sandwiched between two composite material layers 1, 2. extending over the entire surface of the chain and extending slightly in one direction from the chain to form extensions 3a, 3b which allow electrical connection during the final heating operation. This thin resistive element can be constructed of parallel threads made of a conductive material such as copper, steel, ferronickel, constantan, or carbon fibre. The resistive element can also consist of a grid, a fleece or a non-woven mat of carbon fibres, for example. Such fibers can be aggregated using a suitable binder. The carbon fibers are preferably those whose main component is polyacrylonitrile. When such a carbon fiber mat is used as a heating element, the Joule effect causes regular heating over the entire assembly plane between the two layers 1 and 2. It has the advantage of providing a large and uniform heat distribution.

本発明による製造方法の第二段階Ｂは、２の複合材料層
１．２間に挿入した薄い抵抗素子３に電流を通すことに
より、該２の層を加熱することから成る。この目的のた
めに、該抵抗素子３の２の延長部分３ａ、３ｂを直流ま
たは交流電源４の端子に接続する。該抵抗素子３に通電
すると、該素子は加熱され、生じた熱は該複合材料層１
、２の内部に伝わって、該複合材料を内包している熱可
塑性樹脂を柔らかくする。この加熱操作は、添付図面に
パンチ型５および母型６で概略的に示される成形用プレ
スの開いた型内部で行なわれる。ひとたび適宜な温度に
達すると、すなわち該結合用樹脂が十分に柔らかくなる
と、該パンチ型５と母型６とを互いに緊締して成形型を
閉鎖する。これにより、第１図に成形段階Ｃで示すよう
に、層１、２の変形（成形）か確実に行なわれる。The second stage B of the manufacturing method according to the invention consists of heating the two composite material layers 1.2 by passing an electric current through a thin resistive element 3 inserted between the two layers. For this purpose, the two extensions 3a, 3b of the resistive element 3 are connected to the terminals of a DC or AC power source 4. When the resistance element 3 is energized, the element is heated, and the generated heat is transferred to the composite material layer 1.
, 2 to soften the thermoplastic resin enclosing the composite material. This heating operation takes place inside an open mold of a forming press, which is schematically shown in the accompanying drawings as a punch die 5 and a master die 6. Once the appropriate temperature is reached, i.e. the bonding resin is sufficiently soft, the punch die 5 and matrix die 6 are tightened together to close the mold. This ensures that the layers 1 and 2 are deformed (molded) as shown by forming step C in FIG.

一変形実施態様によれば、加圧操作の間に加熱を行なっ
てもよい。According to a variant embodiment, heating may take place during the pressing operation.

次いで、該抵抗素子３の通電を遮断し、成形品を放冷す
る。ひとたび結合用樹脂か固まると、型から取り出した
後（段階Ｄ）の成形品７は、変形硬化した２の層１．２
で構成され、該両層の間には薄い抵抗素子３か捕捉され
ていることが分かる。続いて、このようにして成形され
た製品７から、該抵抗素子３の外側延長部分３ａ、３ｂ
を取り除く。Next, the current supply to the resistive element 3 is cut off, and the molded product is left to cool. Once the bonding resin has hardened, the molded article 7 after removal from the mold (step D) consists of a layer 1.2 of the deformed and hardened 2.
It can be seen that a thin resistive element 3 is trapped between the two layers. Subsequently, from the thus formed product 7, the outer extensions 3a, 3b of the resistive element 3 are formed.
remove.

また、本発明の方法は、熱硬化性樹脂を含む複合材料層
１．２で実施することもできる。この場合、まず鋳型５
．６内で成形操作Ｃが行なわれ、その後該抵抗素子３に
通電して核層１、２を加熱し、それによりプレス成形機
のパンチ型５と母型６との間で変形した層１．２内に含
まれる樹脂を硬化させる。この成形操作に続いて、先に
述べたように、冷却を行なう。The method of the invention can also be carried out with a composite material layer 1.2 comprising a thermosetting resin. In this case, first mold 5
．． 6, a forming operation C is carried out, after which the resistance element 3 is energized to heat the core layers 1, 2, thereby deforming the layers 1. The resin contained in 2 is cured. This molding operation is followed by cooling, as described above.

第２図に示す変形実施態様において１本発明の製造方法
は、開放した成形型５．６内にある独立の薄い抵抗素子
３に相対して配置される単一の複合材料層ｌを用いて実
施される。単一の複合材料層ｌから製品を製造する場合
、抵抗素子３が既に貼着され、したかって第３図に示す
ように、使用し得る状態にあるｌの層を用いると特に有
利である。この場合、層１と抵抗素子３で構成される組
立体は張り合せにより得られる。In a variant embodiment shown in FIG. 2, the manufacturing method according to the invention uses a single composite material layer l placed opposite a separate thin resistive element 3 in an open mold 5.6. Implemented. When producing a product from a single composite material layer l, it is particularly advantageous to use a layer l on which the resistive element 3 has already been applied and is thus ready for use, as shown in FIG. In this case, the assembly consisting of layer 1 and resistive element 3 is obtained by lamination.

また１本発明においては、第４図に示すように、薄い抵
抗素子３を前景て埋め込んである単一の層ｌを使用する
こともできる。It is also possible in one embodiment of the invention to use a single layer 1 in which a thin resistive element 3 is embedded in the foreground, as shown in FIG.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、積み重ねた複合材料層からなる積層品の製造
に本発明の方法を適用した例を示す一連の二［程図。 第２図、第３図および第４図は、本発明による方法を実
施するための異なる態様を示す断面図。 Ｃ主要部分の符号の説明） ２　・・・・・・・・・・複合材料層 ・・・・・・・・・・・・・・薄い抵抗素子ａ、３ｂ　
　・・・・・・延長部分 ・・・・・・・・・・・・・・電源 ・・・−・・・・・・・・・・パンチ型・・・・・・・
・・・・・・・母型 ・・・・・・・・・・・・・・成形品 Ｏコ （〕FIG. 1 is a series of diagrams illustrating the application of the method of the present invention to the production of laminates consisting of stacked composite material layers. 2, 3 and 4 are sectional views showing different embodiments for carrying out the method according to the invention. C Explanation of symbols of main parts) 2 ...... Composite material layer ...... Thin resistance elements a, 3b
・・・・・・Extension part・・・・・・・・・・・・・Power supply・−・・・・・・・・・・Punch type・・・・・・・
・・・・・・Mother mold・・・・・・・・・・・・Molded product Oko ()

Claims (1)

【特許請求の範囲】 １、結合用樹脂を含む少なくとも１の複合材料層からな
り、前記の層は、製造される製品に所望の形状を付与す
るよう成形型内で加圧することによって変形させ、かつ
前記の層を、加圧操作の前および／または該操作の間加
熱する、任意形状の製品を製造する方法において、 前記加圧操作に先立ち、少なくとも１の薄 い抵抗素子（３）を前記複合材料の層（１、２）と接触
させ、かつ前記加熱操作の間、前記の薄い抵抗素子（３
）に通電して、該抵抗素子（３）ならびにそれに隣接す
る複合材料の層（１、２）をジュール効果により加熱す
るとともに、前記の層の前記結合用樹脂の温度を所望の
溶融温度にすることを特徴とする製造方法。 ２、前記結合用樹脂が熱可塑性である場合、先ず、前記
薄い抵抗素子（３）とともに前記層（１、２）を加熱し
て前記結合用樹脂を柔軟にしてから、前記成形品を加圧
し、かつ確実に硬化させるため放冷することを特徴とす
る請求項１による方法。 ３、前記結合用樹脂が熱可塑性である場合、加圧操作の
間、前記薄い抵抗素子（３）とともに前記層（１、２）
を加熱して前記結合用樹脂を柔軟にしてから、前記成形
品を放冷して確実に硬化させることを特徴とする請求項
１による方法。 ４、前記結合用樹脂が熱硬化性である場合、先ず、前記
薄い抵抗素子（３）とともに前記層（１、２）を加圧し
て所望の形状を付与してから、前記変形させた層（１、
２）を加熱して前記結合用樹脂を硬化させるようにした
ことを特徴とする請求項１による方法。 ５、前記薄い抵抗素子（３）が、銅、鋼、コンスタンタ
ン、フェロニッケル、アルミニウ ム、炭素繊維または炭素系のような導電性材料の糸、あ
るいは金属粉で構成され、前記糸は、平行に配列して網
状に構成するか、または格子状、織布状、あるいは不織
布状に構成可能であることを特徴とする請求項１ないし
４のいずれか１による方法。 ６、前記層（１、２）の全表面上で一方向に延在すると
ともに、前記層を僅かに越えて、加熱操作の際、電気的
接続を可能にする延長部分を有する薄い抵抗素子（３）
を用いることを特徴とする請求項１ないし５のいずれか
１による方法。 ７、前記薄い抵抗素子（３）を予め埋設した、少なくと
も１の複合材料層（１）を用いることを特徴とする請求
項１ないし６のいずれか１による方法。 ８、前記薄い抵抗素子（３）を一面上に載置した、少な
くとも１の複合材料層（１）を用いることを特徴とする
請求項１ないし６のいずれか１による方法。 ９、加圧操作に先立って、少なくとも２の複合材料層（
１、２）を積み重ねるとともに、前記２の層間に少なく
とも１の薄い抵抗素子 （３）を挿入することを特徴とする請求項１ないし６に
よる方法。 １０、請求項１ないし９のいずれか１によって得られる
積層構造の製造品。Claims: 1. consisting of at least one composite material layer containing a bonding resin, said layer being deformed by pressure in a mold to impart the desired shape to the manufactured product; and heating said layer before and/or during a pressing operation, comprising: adding at least one thin resistive element (3) to said composite prior to said pressing operation. in contact with the layers of material (1, 2) and during said heating operation said thin resistive element (3).
) to heat the resistive element (3) and the layers (1, 2) of the composite material adjacent thereto by the Joule effect, and bring the temperature of the bonding resin of said layer to the desired melting temperature. A manufacturing method characterized by: 2. When the bonding resin is thermoplastic, first heat the layers (1, 2) together with the thin resistance element (3) to make the bonding resin flexible, and then pressurize the molded product. 2. A method according to claim 1, characterized in that the material is allowed to cool to ensure hardening. 3. If said bonding resin is thermoplastic, said layers (1, 2) together with said thin resistive element (3) during the pressing operation.
A method according to claim 1, characterized in that the bonding resin is softened by heating and then the molded article is allowed to cool to ensure hardening. 4. When the bonding resin is thermosetting, first pressurize the layers (1, 2) together with the thin resistance element (3) to give the desired shape, and then apply pressure to the deformed layer ( 1,
2. The method according to claim 1, wherein the bonding resin is cured by heating. 5. The thin resistive element (3) is composed of threads of conductive material such as copper, steel, constantan, ferronickel, aluminum, carbon fiber or carbon-based material, or metal powder, and the threads are arranged in parallel. 5. A method according to claim 1, characterized in that it can be constructed in the form of a net, or in the form of a lattice, a woven fabric or a non-woven fabric. 6. A thin resistive element (1, 2) with an extension extending in one direction over the entire surface of said layers (1, 2) and slightly beyond said layers to allow electrical connection during heating operations. 3)
6. A method according to any one of claims 1 to 5, characterized in that: 7. Method according to any one of claims 1 to 6, characterized in that at least one layer of composite material (1) is used, in which the thin resistive element (3) is previously embedded. 8. Method according to any one of claims 1 to 6, characterized in that at least one layer of composite material (1) is used, on one side of which the thin resistive element (3) is applied. 9. At least two layers of composite material (
1, 2) and inserting at least one thin resistive element (3) between the two layers. 10. A manufactured product having a laminated structure obtained according to any one of claims 1 to 9.
JP1258963A 1988-10-11 1989-10-05 Manufacture of moldings using composite material and products manufactured by said method Pending JPH02196625A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8813364A FR2637534B1 (en) 1988-10-11 1988-10-11 PROCESS FOR MANUFACTURING A PART MADE OF COMPOSITE MATERIAL BY PRESSING AND A PART OBTAINED BY THIS PROCESS
FR8813364 1988-10-11

Publications (1)

Publication Number Publication Date
JPH02196625A true JPH02196625A (en) 1990-08-03

Family

ID=9370910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1258963A Pending JPH02196625A (en) 1988-10-11 1989-10-05 Manufacture of moldings using composite material and products manufactured by said method

Country Status (2)

Country Link
JP (1) JPH02196625A (en)
FR (1) FR2637534B1 (en)

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Also Published As

Publication number Publication date
FR2637534B1 (en) 1991-04-12
FR2637534A1 (en) 1990-04-13

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