WO1993021004A1 - Procedes d'elaboration de materiaux composites formes par une matrice et une charge constituee de petites particules - Google Patents
Procedes d'elaboration de materiaux composites formes par une matrice et une charge constituee de petites particules Download PDFInfo
- Publication number
- WO1993021004A1 WO1993021004A1 PCT/FR1993/000354 FR9300354W WO9321004A1 WO 1993021004 A1 WO1993021004 A1 WO 1993021004A1 FR 9300354 W FR9300354 W FR 9300354W WO 9321004 A1 WO9321004 A1 WO 9321004A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- matrix
- particles
- static
- composite materials
- action
- Prior art date
Links
- 239000002245 particle Substances 0.000 title claims abstract description 19
- 239000011159 matrix material Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 title claims description 8
- 239000000945 filler Substances 0.000 title claims 2
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 230000006698 induction Effects 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 239000002887 superconductor Substances 0.000 abstract 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
- B29C70/14—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat oriented
-
- 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
- B29K2105/14—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 oriented
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
- B29K2105/18—Fillers oriented
Definitions
- the fibers are generally aligned in the direction of traction.
- the manufacture of the structure is however costly in time and cost price.
- the second type of process is based on mixing fibers or platelets with a matrix of polymers. It leads to a statistical distribution of the reinforcement particles after molding and solidification. Due to this random distribution, it is difficult to obtain high quality surfaces in a cutting operation.
- the present invention relates to devices for orienting fibers or small particles of different geometries. These various elements are impregnated in a deformable matrix, entirely or partially in the liquid state. Initially the particles are randomly distributed in the matrix. The orientation of the impregnates is effected by the combined action of a static or slightly variable magnetic induction field and a high frequency magnetic induction field.
- the devices according to the invention allow the improvement of certain physical (electrical, thermal, optical, etc.) and mechanical properties such as mechanical rigidity, impact resistance, wear resistance, better fatigue resistance.
- the various processes which are the subject of this patent are applied to plastics, ceramics and metallic compounds.
- the improvements are obtained by the introduction into a matrix of fibers .or / and of plates of materials ensuring the desired reinforcement criterion.
- the impregnates thus acquire a magnetic moment
- a crucible [4; fig.l] which will contain the composite material [5; figl] which in its initial composition is the mixture of a hardenable epoxy matrix and carbon fibers and / or others reinforcing particles.
- the magnetic field is applied for 5 min during the hardening phase of the matrix.
- a protective screen formed by a 2mm thick copper sheet is provided to avoid parasitic heating which can be caused by the creepage lines of the high frequency magnetic field.
- a superconductive magnet [l; fig.2] is installed at the outlet of an extrusion device [2; fig.2] so that the induction field created is parallel to the direction of traction.
- An assembly with two coils [3a, 3b; fig.2] was chosen in order to be able to more easily implement the coil [4; fig.2] connected to the high-frequency generator [5: fig2].
- the temperature of the sample is controlled by a heating system [6] in order to be able to be introduced in the liquid state into the coil.
- the solidification of the mixture should not start until after the activation of a high frequency magnetic field. .
- the process parameters are directly linked to the properties of the constituents of the composite material produced.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93909007A EP0596060A1 (fr) | 1992-04-09 | 1993-04-08 | Procedes d'elaboration de materiaux composites formes par une matrice et une charge constituee de petites particules |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR92/04530 | 1992-04-09 | ||
| FR9204530A FR2689897A1 (fr) | 1992-04-09 | 1992-04-09 | Procédé d'élaboration de matériaux composites formés par une matrice et une charge constituée de petites particules. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1993021004A1 true WO1993021004A1 (fr) | 1993-10-28 |
Family
ID=9428817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1993/000354 WO1993021004A1 (fr) | 1992-04-09 | 1993-04-08 | Procedes d'elaboration de materiaux composites formes par une matrice et une charge constituee de petites particules |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0596060A1 (enrdf_load_stackoverflow) |
| AU (1) | AU3956693A (enrdf_load_stackoverflow) |
| FR (1) | FR2689897A1 (enrdf_load_stackoverflow) |
| WO (1) | WO1993021004A1 (enrdf_load_stackoverflow) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3767505A (en) * | 1971-02-19 | 1973-10-23 | Monsanto Co | Producing ordered composites by application of magnetic forces |
| GB1438509A (en) * | 1972-07-05 | 1976-06-09 | Kureha Chemical Ind Co Ltd | Method for preparing composite material reinforced by graphite whiskers |
| FR2318733A1 (fr) * | 1975-07-22 | 1977-02-18 | Innovationsteknik Inst Ab | Procede de renforcement de materiaux a l'aide de fibres |
| US4559188A (en) * | 1983-02-14 | 1985-12-17 | Dayco Corporation | Method for making a layer of reinforced polymeric material |
| US4560603A (en) * | 1983-10-27 | 1985-12-24 | Ltv Aerospace And Defense Company | Composite matrix with oriented whiskers |
| GB2190619A (en) * | 1986-04-30 | 1987-11-25 | Terence Micheal Costello | Moulding a wear resistant surface from metallised carbon fibres |
-
1992
- 1992-04-09 FR FR9204530A patent/FR2689897A1/fr active Granted
-
1993
- 1993-04-08 EP EP93909007A patent/EP0596060A1/fr not_active Withdrawn
- 1993-04-08 AU AU39566/93A patent/AU3956693A/en not_active Abandoned
- 1993-04-08 WO PCT/FR1993/000354 patent/WO1993021004A1/fr not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3767505A (en) * | 1971-02-19 | 1973-10-23 | Monsanto Co | Producing ordered composites by application of magnetic forces |
| GB1438509A (en) * | 1972-07-05 | 1976-06-09 | Kureha Chemical Ind Co Ltd | Method for preparing composite material reinforced by graphite whiskers |
| FR2318733A1 (fr) * | 1975-07-22 | 1977-02-18 | Innovationsteknik Inst Ab | Procede de renforcement de materiaux a l'aide de fibres |
| US4559188A (en) * | 1983-02-14 | 1985-12-17 | Dayco Corporation | Method for making a layer of reinforced polymeric material |
| US4560603A (en) * | 1983-10-27 | 1985-12-24 | Ltv Aerospace And Defense Company | Composite matrix with oriented whiskers |
| GB2190619A (en) * | 1986-04-30 | 1987-11-25 | Terence Micheal Costello | Moulding a wear resistant surface from metallised carbon fibres |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3956693A (en) | 1993-11-18 |
| FR2689897A1 (fr) | 1993-10-15 |
| FR2689897B1 (enrdf_load_stackoverflow) | 1994-07-13 |
| EP0596060A1 (fr) | 1994-05-11 |
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