WO2000035648A1 - Procede de moulage de plastiques structuraux composites et objets moules selon ce procede - Google Patents

Procede de moulage de plastiques structuraux composites et objets moules selon ce procede Download PDF

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Publication number
WO2000035648A1
WO2000035648A1 PCT/US1998/026569 US9826569W WO0035648A1 WO 2000035648 A1 WO2000035648 A1 WO 2000035648A1 US 9826569 W US9826569 W US 9826569W WO 0035648 A1 WO0035648 A1 WO 0035648A1
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WO
WIPO (PCT)
Prior art keywords
mold
casting method
mixture
composition
casting
Prior art date
Application number
PCT/US1998/026569
Other languages
English (en)
Inventor
Matthew W. Holtzberg
Original Assignee
Holtzberg Matthew W
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 Holtzberg Matthew W filed Critical Holtzberg Matthew W
Priority to PCT/US1998/026569 priority Critical patent/WO2000035648A1/fr
Publication of WO2000035648A1 publication Critical patent/WO2000035648A1/fr

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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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/448—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles destructible
    • 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
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/006—Degassing moulding material or draining off gas during moulding
    • 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
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Definitions

  • This invention relates to a method of molding composite, structural plastics and the
  • this invention relates to a method of casting plastic
  • This invention further relates to the rapid fabrication of prototypes in
  • metal foundries all over the world. In the foundries, metals are processed into commercially viable shapes by melting and pouring a molten metal into a mold. In this manner, structural
  • metal or alloy selected without limitation, the metal or alloy selected, casting size and complexity, surface finish,
  • Sand casting metal is the backbone of several predominant industries, such as the
  • green sand moldings (see 1996 CD&A Reference handbook).
  • green sand denotes a
  • Sand molding is a multipurpose metal-forming process in which a pattern is made of
  • a pattern 10 is usually constructed in two parts
  • Parts 10a and 10b are aligned with each other using a plurality of registration pins 13.
  • bottom part 10a of the pattern is placed upside down on a molding
  • the pattern defines a desired shape within a bottom half 18a of a mold 18
  • top half 18b of mold 18 is filled with sand 19 which
  • sprue 27 is cut into the top half 18b of mold 18 to provide an ingress for pouring molten met
  • a horizontal channel or runner 29 is cut in the lower half 18a of
  • risers 31 can also be cut into the mold. As further illustrated in Fig. 1G, a sand core 33 is set in
  • Sand casting can be used to mold a wide range of materials having considerable
  • this type of molding process is that the mold is a single use mold which inhibits high volume
  • mold molds may also be constructed of cast iron, graphite, copper or aluminum.
  • Molten metal is poured into a mold 41 having mold halves 41a and 41b and a core 43.
  • Mold 41 is a permanent mold wherein the metal cools more rapidly than in a sand mold and
  • mold 41 emulates the sand casting procedure described
  • a mold configuration 44 is formed in the mold which corresponds to the desired
  • a sprue 45 is defined for pouring of molten metal into the
  • mold cavity defined by mold configuration 44.
  • Diecasting is a permanent molding process is primarily for high production of intricately-designed components cast from zinc, lead, tin, aluminum, copper or magnesium.
  • the cold chamber method is primarily used with metals of higher melting
  • molten metal is held in a temperature-controlled holding pot 58 and
  • the hot chamber method is
  • the mold is broken to remove the casting therefrom.
  • the ceramic shell method dominates the use of this production
  • Wax is injected int
  • the solidified metal component may be subjected to further finishing processes
  • the wax pattern can be made with internal passageways to create complex castings, the investment casting process enables mass production of complex shapes and
  • bonded silica sand 62 is placed on a heated pattern 65 for a predetermined length of time (1).
  • Heating cures the resin, causing the sand grains to adhere to each other to form a sturdy shell that
  • the shell is manually joined with its complementary other half to make a complete shell
  • Castings made by this method typically exhibit more accurate dimensional tolerances
  • EPS expanded polystyrene
  • a one-piece pattern 71 is made of expanded polystyrene and covered with a thin
  • Pattern 71 is embedded in unbonded sand 72 within a vented container 73
  • castings can be made by the
  • Typical temperatures reach ranges of 250-650 °F and typical pressures reach 150-5000 psi.
  • CAD techniques include stereo lithography (SLA), laminated object manufacturing,
  • SLM selective laser sintering
  • FDM fused deposition modeling
  • Molded nylon intake manifolds for example, already constitute 5% of the relevant
  • injection molding nylon is known as the lost core process. It uses a soft metal such as tin-
  • bismuth as the soluble core material.
  • the metal is first melted, and then injection molded in a
  • a steel mold is required due to the high melt temperature of the
  • molded manifolds can only have thin wall thicknesses ( i.e 3-4 mm), significantly less than the
  • injection molded materials also mandates thin wall designs. As a result, injection molded
  • Injection molding plastics are similar in costs to diecast metals such as magnesium, yet
  • injection molding is the lowest cost form of molding plastics and that
  • the metal caster realizes significant cost savings by reclaiming the ability
  • Plastics are amenable to fabrication in simple and complex forms, enabling volume production of
  • both the cylinder head and engine block are formed from a fiber-reinforced phenolic resin.
  • fiber reinforcement preferably includes fiberglass or graphite fibers having a length of about V.”
  • the head and block are either injection or compression molded to achieve close
  • a lightweight engine block and head assembly according to invention reduces overall
  • the components are capable of maintaining higher horsepower
  • components are cast from a polymerizable thermoset or thermoplastic composition in a
  • thermoset a low viscosity thermoset
  • thermoplastic composition having reinforcing fibers distributed therein is poured into
  • thermoset resin a thermoset resin
  • the object to be fabricated is fully cured by the action of a catalyst at relatively low exothermic
  • thermoplastic resin In the case of a thermoplastic resin, curing is generally achieved
  • thermoset or thermoplastic resin the resin is brought to a viscosity sufficient to maintain
  • the invention furthermore discloses a method of fabricating high quality composite
  • plastics utilizing low cost molds heretofore used only in the prototyping of plastic visual aids are known.
  • Figures 1A to 1G show a schematic representation of a sand molding metalcasting
  • Figure 2 shows a permanent mold used in permanent mold metalcasting process of the
  • Figures 3A and 3B show a cold-chamber diecasting machine and a hot-chamber
  • Figure 4 shows a schematic representation of an investment casting process of the prior
  • Figure 5 shows a schematic representation of a shell molding metalcasting process of the
  • Figure 6 shows a schematic representation of a lost foam casting process of the prior art.
  • Figure 7A shows a flowchart of the present invention method of casting structural plastic components in conventional metalcasting molds using a thermoset resin.
  • Figure 7B shows a flowchart of the present invention method of casting structural plastic
  • thermoplastic resins in conventional metalcasting methods using thermoplastic resins.
  • Figures 8 A to 8H shows a schematic representation of a plastic casting method of the
  • Figures 9A to 9H show a schematic representation of a soft tooling prototype according
  • thermoset or thermoplastic resins in a liquid state
  • Figures 7A and 7B provide flowcharts illustrating the present invention method for
  • thermoset selection is dependent on
  • thermoset resin is combined with a catalyst and a dry
  • fibers and resin may be mixed before adding the catalyst, or catalyst
  • the selected resin has a sufficiently low viscosity so as to allows mixture of the resin
  • the fibers are sufficiently suspended within the resin so as
  • Selected reinforcement fibers can be fiberglass, graphite, Kevlar® or ceramics. Relatively short fiber
  • thermoset composition chemically cross-links into a cured and solidified shape
  • thermoset resins that can be used include,
  • compositions have low enough viscosity (i.e. 100-3,000 cps) to allow mixture of
  • resole phenolic are preferred because they are one-
  • stage resins manufactured by heating phenol and formaldehyde using an alkaline catalyst.
  • one-stage is meant that the formaldehyde-phenol mole ratio must be greater than one, enabling
  • Resole phenolics may use either water or ethylene glycol as a solvent. Since phenolics are cross-linked through a condensation reaction, the use of ethylene glycol as a
  • solvent is preferred to minimize the amount of water in the cure process.
  • resoles can be cured without additional heat through the addition of
  • resole phenolic generally require strong acids such as phosphoric
  • Typical catalysts are 2-20% by weight
  • aeration is accomplished by agitating the mixture in a conventional manner, such as by rolling
  • the mixture from Block 103 is de-aerated until the resin is at a viscosity sufficient for
  • a conventional soft tool mold such as a wax, plaster, plastic, spray metal or rubber mold.
  • Block 107 the mixture of Block 103 is poured into the mold after passage of an
  • Typical gelation cycle times may be from 15
  • the mixture is poured into a suitable foundry mold, such as sand,
  • Dispensing equipment such as
  • the mold may be pre-heated to accelerate curing.
  • the mold may be pre-heated to accelerate curing.
  • the mold may be pre-heated to accelerate curing.
  • thermoset a completed object formed from a thermoset may be subjected to a post-
  • the structural plastic component is formed from a thermoplastic resin selected at
  • thermoset resin rather than a thermoset resin.
  • Thermoplastics differ from thermosets in that, like
  • thermoplastics can be re-melted and re-solidified after initial solidification.
  • thermoplastics are always injection molded while thermosets are almost always compression
  • thermoplastics In their traditional commercial form, thermoplastics require high added heat and high
  • Pellets are obtained by first melting a thermoplastic resin into a paste-like viscosity, then
  • thermoplastic part To manufacture a thermoplastic part, an injection molding machine is required.
  • injection molding machine preheats the pellets and then plasticizes them for forcing them
  • thermoplastic in temperature ranges from about 150°F-700° F, depending upon the type of thermoplastic, and
  • Mold temperature is not as
  • thermoplastic In order for a thermoplastic to
  • thermoset resins are thermoset resins.
  • the resin mixture is allowed to rest and de-aerate as can be seen at Block 105', after
  • thermoplastic resin can be either pushed or poured into a mold having a temperature that is at ambient or at least lower than the temperature of the resin mixture. The rapid cooling of the
  • thermoplastic resins that previously required injection and compression molding machines, and
  • liquid thermoplastic composition can now be suspended for the duration of the fabrication
  • liquid thermoplastics have sufficient viscosity for integration
  • thermoplastic compositions can be put into a
  • the resins which can be used include but are not
  • polyamide examples include nylon, polyethylene (PE), polypropylene (PP), polyetherketone (PEK), polyamide
  • PAI polyether imide
  • PEI polyether imide
  • PPS polyphenylenesulfide
  • PBI polybenzimidazole
  • PS polysulfone
  • PAS polyarylethersulfone
  • PET poly(ethylene terephthalate)
  • acetals and
  • polycarbonate When in a liquid state, they are, or can be put into, a low enough viscosity (i.e.
  • Nylon resins of which nylon 6 is currently the only castable nylon, are often preferred
  • thermo stability of thermoplastics is generally comparable to that of cast aluminum in the
  • Thermoplastics particularly plastics such as caprolactam (nylon 6), are available in a
  • thermoplastic compositions such as caprolactam requires melting the resin into a
  • thermoplastic resin into a solidified part, as illustrated in Figure 7A with respect to a thermoset
  • the caprolactam must be warmed to about 69° C before the catalyst and activator (heated
  • thermoplastic powders such as those described hereinabove can be any thermoplastic powders such as those described hereinabove.
  • thermoset resins the ingredients which are used to make a resin-fiber compound
  • thermoplastic resin or resin-fiber-catalyst compound mixture using a thermoplastic resin can be purchased separately
  • thermoset resins The same de-aeration method described hereinabove with respect to thermoset resins can be used.
  • thermoplastic resins also be employed with thermoplastic resins to ensure suspension of fibers within a resinous
  • thermoset any thermoplastic
  • thermoplastic thermoplastic
  • thermoset or re-solidify (as with a thermoplastic), the fibers lose their tendency to settle or
  • thermoset resin whether thermoset or thermoplastic, can be varied accordingly to keep the fibers in
  • the fibers can be dispersed throughout the resin in a desired pattern and maintained in such
  • thermoset resins When selecting the polymerizable composition to be cast, thermoset resins and
  • thermosets for example, is significantly superior to that of components formed from other resins.
  • enhanced chemical resistance of thermosets for example, is significantly superior to that of components formed from other resins.
  • thermosets and thermoplastics combined with the ability to withstand extreme environmental conditions
  • composition conducive to the practice thereof is provided.
  • a soft tool mold such as a wax, plaster, plastic, rubber or spray metal
  • the mold itself may be made by first making a model or pattern of the object to be
  • soft formable material such as wax, plastic, rubber or spray metal or rubber soft tool molds, or
  • the mold may be a negative of
  • Typical procedures include using liquid resin, such as a polyurethane
  • thermoplastics such as nylon and high
  • thermoset plastics such as phenolics and epoxies.
  • thermoset composition If using a thermoset composition, curing of the liquid mixture is accomplished entirely by the
  • Figures 8 A through 8H illustrate the construction and use of a typical sand mold in
  • inventive method disclosed herein is applicable to a variety of conventional
  • metalcasting operations including but not limited to shell molding, diecasting, permanent molding and other such methods as described hereinabove.
  • Figure 8 A shows a two-piece pattern 201 representing the object to be molded.
  • 201 has a base portion 201a and a top portion 201b.
  • base portion 201a is inverted
  • Mold box 203 further includes a
  • removable base 212 which holds shows a sand and binder mixture 205 that fills the bottom
  • a manual or automatic compacting means such as
  • ram 210 compresses the sand around the base pattern 201a.
  • mold box 203 along with sand 205 and base portion 201a
  • mold box 203 therein, is inverted and base 212 is removed therefrom.
  • the bottom portion of mold box 203 is
  • a funnel-shaped opening or sprue 220 is cut in sand 205 which
  • top portion 203b of mold box 203 extends along the width of top portion 203b of mold box 203. Top portion 203b is removed
  • vent holes or risers 222 can be cut in
  • the liquid plastic mixture fills the mold and is allowed to cure therein.
  • Sand 205 is broken away, releasing the finished product which is a composite, structural plastic
  • binders such as wax binders may also be used with the present
  • a binder that breaks down/decomposes with water.
  • a binder is used that breaks down/decomposes with water.
  • thermoplastic resin that is selected for a particular application must be in a liquid state.
  • preferred methods of producing a liquid resin include melting a
  • thermoplastic such as nylon 6 in the present invention
  • the process for manufacturing nylon 6 involves three components: a
  • the typical activator is HDI-
  • caprolactame pre-polymer and caprolactam and the typical catalyst is aliphatic cyclic amide
  • Reinforcement fibers in a milled or chopped strand form can be integrated with a
  • milled glass fibers may be vibrated in combination with a resin into which
  • the fibers are positioned. Once the resin attains a viscosity to suspend the fibers on its own, the
  • fillers may also be used to maintain the suspension until cure is
  • composition is attained so as to allow suspension of the fibers within the resin.
  • the part designer can provide the definition of the component's end use and the
  • the dispersion pattern which ensures compliance with such goals.
  • the dispersion pattern can be
  • wax has proven to be a suitable binder, as
  • waxes are either paraffin-based with fillers, or polymer
  • composite plastics can be cast around the same types
  • metalcasting molds are 50-300% less expensive than the hard
  • simple low temperature ba ⁇ ier coatings such as polyethylene film can be used.
  • Figures 9A to 9H illustrate an
  • FIG. 9A a two-piece wood or metal pattern 301 having a base portion 301a and a top portion
  • 301b represents the object to be molded. Similar to the sand casting procedure shown and
  • base portion 301a is shown in Figure 9B positioned in a bottom
  • a liquid silicone rubber-curing agent mixture 304 fills
  • bottom portion 303a and cures.
  • bottom portion 303a having base portion 301a and
  • cured rubber 304' therein is inverted and base 312 is removed to define a separation plane 317.
  • the curable rubber is also used to fill top portion 303b of the mold box and cures therein as
  • Figure 9G shows the completely prepared mold just before pouring of the liquid resin.
  • the two empty mold configuration pieces 325a and 325b are aligned and joined to form a single
  • a resinous, fiber-reinforced mixture such as that prepared in Block 103 of
  • Figure can now be poured into the mold from a beaker 331 into a funnel 333 through funnel
  • the prototypes part can become the commercial product, thereby
  • Resin liquid resole phenolic resin having the formula: phenol formaldehyde polymer 70-80%; ethylene glycol 10-12%; phenol 7-10% and formaldehyde 1-3%. Resin viscosity is 500 cps.
  • Catalyst p-toluene sulfonic acid, 44%; phosphoric acid 3%, ethylene glycol 53%.
  • viscous to pour is 10-12 minutes. Monitor the mixture temperature. Pour into a sand mold at a
  • e-caprolactam catalyst caprolactam sodium salt, i.e such as that produced under product name Bruggolen CIO, a trademark of L. Bruggeman Chemical Company
  • caprolactam i.e such as that produced under the name Bruggolen C20 (powder form) or Bruggolen C230 (liquid form), both of which are trademarks of L. Bruggeman Chemical Company
  • Monomer viscosity (melted) is 100 cps. The monomer in flake form is melted at
  • the activator percentage should be based upon 1% by weight
  • caprolactam/fiberglass mixture with the activator and catalyst using a standard mixer.
  • the mixture and monitor the temperature thereof to a maximum temperature of 100°C-150° C.
  • a binder that breaks down with water or low heat may be used (i.e. a resin or
  • Resin nylon 6 in powder form. All other materials are as identified in Example 2.
  • the mold can be pre-heated to about 100°C-150°C to accelerate cure.
  • thermoplastic resins are simply poured into molds made by existing techniques, producing prototype parts having equivalent visual and physical qualities to the actual part to be
  • the prototyped part can become the commercial

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de moulage de composants plastiques structuraux composites qui sont coulés à partir d'une composition (233) polymérisable thermodurcie ou thermoplastique dans une pièce de fonte classique (203).Selon cette invention, on verse une composition thermodurcie ou thermoplastique à faible viscosité ayant des fibres de renforcement réparties dans des pièces de fonte classiques. Aussi n'est-il plus nécessaire de recourir à des chaleurs ou pressions élevées associées au moulage par injection ou par compression de matières composites comme le prône l'état actuel de la technique. Les instruments pour la fonte de métaux et les procédés utilisés uniquement pour le coulage de parties métalliques assurent un moulage « sans pression » sans pour autant nécessiter beaucoup plus de chaleur. L'objet à fabriquer est complètement durci sous l'effet d'un catalyseur à des températures exothermiques de résine relativement basses. Ce procédé permet également de fabriquer des plastiques structuraux composites de qualité dans des moules souples classiques et dans des moules obtenus par des techniques de prototypage rapide. Cette technique de moulage économique produit des plastiques moulés structuraux de qualité grâce à des moules à faible coût utilisés uniquement dans le prototypage d'auxiliaires visuels plastiques.
PCT/US1998/026569 1998-12-15 1998-12-15 Procede de moulage de plastiques structuraux composites et objets moules selon ce procede WO2000035648A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1998/026569 WO2000035648A1 (fr) 1998-12-15 1998-12-15 Procede de moulage de plastiques structuraux composites et objets moules selon ce procede

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/026569 WO2000035648A1 (fr) 1998-12-15 1998-12-15 Procede de moulage de plastiques structuraux composites et objets moules selon ce procede

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Publication Number Publication Date
WO2000035648A1 true WO2000035648A1 (fr) 2000-06-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7531583B2 (en) 2005-05-28 2009-05-12 Valeo, Inc. Composition useful in manufacturing automotive components
US9469052B2 (en) 2013-04-11 2016-10-18 Airbus Operations Gmbh Method and apparatus for producing a fiber-reinforced plastics casting
WO2021156699A1 (fr) * 2020-02-07 2021-08-12 Tyco Fire Products Lp Moule et procédé de fabrication d'une partie de gicleur polymère renforcée par des fibres

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004339A (en) * 1962-06-13 1965-09-15 British Celanese Improvements relating to the production of moulded articles
US4320079A (en) * 1980-04-09 1982-03-16 General Electric Company Method for making shaped carbon fiber structures
US4826645A (en) * 1984-07-07 1989-05-02 Rolls-Royce Limited Method of making an integral bladed member
WO1998012033A2 (fr) * 1996-09-17 1998-03-26 Holtzberg Matthew W Procede de moulage de plastiques composites armes et objets moules selon ce procede

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004339A (en) * 1962-06-13 1965-09-15 British Celanese Improvements relating to the production of moulded articles
US4320079A (en) * 1980-04-09 1982-03-16 General Electric Company Method for making shaped carbon fiber structures
US4826645A (en) * 1984-07-07 1989-05-02 Rolls-Royce Limited Method of making an integral bladed member
WO1998012033A2 (fr) * 1996-09-17 1998-03-26 Holtzberg Matthew W Procede de moulage de plastiques composites armes et objets moules selon ce procede

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7531583B2 (en) 2005-05-28 2009-05-12 Valeo, Inc. Composition useful in manufacturing automotive components
US9469052B2 (en) 2013-04-11 2016-10-18 Airbus Operations Gmbh Method and apparatus for producing a fiber-reinforced plastics casting
EP2789444B1 (fr) * 2013-04-11 2017-05-31 Airbus Operations GmbH Procédé et appareil de production d'un moulage en plastique renforcé par fibres
WO2021156699A1 (fr) * 2020-02-07 2021-08-12 Tyco Fire Products Lp Moule et procédé de fabrication d'une partie de gicleur polymère renforcée par des fibres

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