SE510331C2 - Preparation of sandwich structure laminates containing lightweight core and reinforcing layers - Google Patents
Preparation of sandwich structure laminates containing lightweight core and reinforcing layersInfo
- Publication number
- SE510331C2 SE510331C2 SE9801759A SE9801759A SE510331C2 SE 510331 C2 SE510331 C2 SE 510331C2 SE 9801759 A SE9801759 A SE 9801759A SE 9801759 A SE9801759 A SE 9801759A SE 510331 C2 SE510331 C2 SE 510331C2
- Authority
- SE
- Sweden
- Prior art keywords
- lpmc
- laminate
- tool
- layer
- mold
- Prior art date
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 3
- 239000004814 polyurethane Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims abstract 7
- 239000011162 core material Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000002648 laminated material Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 abstract 2
- 239000000206 moulding compound Substances 0.000 abstract 2
- 239000002344 surface layer Substances 0.000 abstract 2
- 238000007731 hot pressing Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
510.331 10 15 20 25 30 l i 2 Fig 1 visar ett snitt genom en första utföringsforrn av det uppfinningsenliga larninatet. 510.331 10 15 20 25 30 l i 2 Fig. 1 shows a section through a first embodiment of the inventive larnate.
Fig 2 visar ett snitt genom en altemativ utfóringsform av det uppfinningsenliga larninatet.Fig. 2 shows a section through an alternative embodiment of the inventive larnate.
Det i fig 1 visade larninatet 1 innefattar ett lätt kämmaterial 2, företrädesvis av poly- urethan eller liknande. Vid tillverkning sammanställs ett utgångsämne genom att man omgivande det lätta kämmaterialet 2 i nämnd ordning anordnar ett fiárstärlmingsskikt 3 av ett fibermaterial såsom glas-, kol- eller aramidfibrer sarnt ett ytterskikt 4 av ett LPMC-material (Low Pressure Moulding Compound), vilket är en varmpressmassa innefattande harts och fyllmedel samt eventuellt också armering.The larnate 1 shown in fi g 1 comprises a light core material 2, preferably of polyurethane or the like. During manufacture, a starting material is compiled by arranging around the light core material 2 in said order a fi annual solidification layer 3 of a fi base material such as glass, carbon or aramid fi as well as an outer layer 4 of an LPMC material (Low Pressure Molding Compound), which is a hot press pulp including resin and filler and possibly also reinforcement.
Det således åstadkomna utgångsärnnet placeras sedan mellan tvenne formhalvor i ett till omkring lOO-150°C uppvärmt forrnverktyg. Formverktyget stängs varefier en krafi anbringas för att pressa de båda formhalvor-na mot varandra, skapande ett över- tryck på 20-30 Bar. Vid samrnanpressningen kommer LPMC-materialet 4 att fylla forrnverktygets kaviteter. För att åstadkomma god samrnanbindning mellan bestånds- delamai larninatet 1 kommer harts och fyllrnedel i LPMC-materialet 4 att penetrera fórstärkningsskiktet 3 och vidhäfia kärnmaterialet 2. Förstärlcningsskiktet 3 fungerar också som ett spärrskikt för eventuell armering i pressmassan 4. Under det att form- verktyget är stängt kommer härdning av LPMC-materialet 4 att initieras och fortgå så långt att en stabil produkt kan uttagas ur fonnverktyget vid öppning därav.The starting core thus obtained is then placed between two mold halves in a forming tool heated to about 100-150 ° C. The mold tool closes every time a collar is applied to press the two mold halves against each other, creating an overpressure of 20-30 Bar. During compression, the LPMC material 4 will fill the cavities of the antique tool. In order to achieve a good bonding between the component laminate 1, resin and filler in the LPMC material 4 will penetrate the reinforcing layer 3 and adhere to the core material 2. The reinforcing layer 3 also acts as a barrier layer for possible reinforcement in the press mass 4. While the mold is closed, curing of the LPMC material 4 will be initiated and proceed to such an extent that a stable product can be removed from the molding tool upon opening thereof.
Vid den alternativa utfóringsforrnen enligt figur 2 byggs utgångsänmet upp på samma sätt som beskrivits i anslutning till utföringsforrnen enligt figur l med tillägget att man anordnar ett vidhäñningsskikt 5 mellan förstärkningsskiktet 3 och kärnmaterialet 2. Vidhäfiningsskiktet 5 utgörs företrädesvis av en terrnoplast i form av en väv eller en film. Vid tillverkningen av larninatet l enligt denna utföringsforrn, på samrna sätt som beskrivs i anslutning till figur l, kommer vidhäfiningsskiktet 5 att smälta sarnrnan med kärnmaterialet 2 och fórstärlcrringsskiktet 3 och åstadkomma en god fórbindning mellan dessa delar. Pressmassan 4 kommer att värmehärda samtidigt som den flyter ut i forrnutrymmet och penetrerar fórstärkningsskiktet 3.In the alternative embodiment according to Figure 2, the starting material is constructed in the same way as described in connection with the embodiments according to Figure 1 with the addition that an extension layer 5 is arranged between the reinforcing layer 3 and the core material 2. The extension layer 5 preferably consists of a a movie. In the manufacture of the laminate 1 according to this embodiment, in the same manner as described in connection with Figure 1, the adhering layer 5 will fuse the core with the core material 2 and the reinforcing layer 3 and provide a good connection between these parts. The press mass 4 will heat cure at the same time as it flows out into the mold space and penetrates the pre-reinforcement layer 3.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9801759A SE9801759L (en) | 1998-05-19 | 1998-05-19 | Method for making a sandwich laminate and a sandwich laminate made according to the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9801759A SE9801759L (en) | 1998-05-19 | 1998-05-19 | Method for making a sandwich laminate and a sandwich laminate made according to the method |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9801759D0 SE9801759D0 (en) | 1998-05-19 |
SE510331C2 true SE510331C2 (en) | 1999-05-10 |
SE9801759L SE9801759L (en) | 1999-05-10 |
Family
ID=20411371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9801759A SE9801759L (en) | 1998-05-19 | 1998-05-19 | Method for making a sandwich laminate and a sandwich laminate made according to the method |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE9801759L (en) |
-
1998
- 1998-05-19 SE SE9801759A patent/SE9801759L/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9801759D0 (en) | 1998-05-19 |
SE9801759L (en) | 1999-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |