DE2912772A1 - METHOD FOR DEFORMING ROCK DOUBLE PANELS FROM THERMOPLASTIC PLASTICS - Google Patents
METHOD FOR DEFORMING ROCK DOUBLE PANELS FROM THERMOPLASTIC PLASTICSInfo
- Publication number
- DE2912772A1 DE2912772A1 DE19792912772 DE2912772A DE2912772A1 DE 2912772 A1 DE2912772 A1 DE 2912772A1 DE 19792912772 DE19792912772 DE 19792912772 DE 2912772 A DE2912772 A DE 2912772A DE 2912772 A1 DE2912772 A1 DE 2912772A1
- Authority
- DE
- Germany
- Prior art keywords
- double
- web
- deformation
- channels
- sealed
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 22
- 229920001169 thermoplastic Polymers 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
-
- 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
- B29C51/006—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 for making articles having hollow walls
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2024/00—Articles with hollow walls
- B29L2024/006—Articles with hollow walls multi-channelled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2025/00—Frameless domes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/778—Windows
- B29L2031/7782—Glazing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
PATENTANWÄLTE
Dipl.-lng. P. WIRTH · Dr. V. SCH MIED-KOWARZIK
Dipl.-lng. G. DANNENBERG · Dr. P. WEI NHOLD · Dr. D. GUDEL PATENT LAWYERS
Dipl.-Ing. P. WIRTH Dr. V. SCH MIED-KOWARZIK Dipl.-Ing. G. DANNENBERG Dr. P. WEI NHOLD Dr. D. GUDEL
28Π34 GR. ESCHENHEIMER STR. 3928Π34 GR. ESCHENHEIMER STR. 39
TELEFON: C06113TELEPHONE: C06113
287014 6000 FRANKFURT AM MAIM I287014 6000 FRANKFURT AM MAIM I
28. März 1979 SS/f BE 9328March 28, 1979 SS / f BE 9328
BAYER ITALIA S.p.A.BAYER ITALIA S.p.A.
Viale Certosa 126, Mailand, ItalienViale Certosa 126, Milan, Italy
Verfahren zur Verformung von Stegdoppelplatten aus thermoplastischen KunststoffenProcess for the deformation of double-walled sheets made of thermoplastic Plastics
O 3 O '.! 3 O / O 5 3O 3 O '.! 3 O / O 5 3
Die Erfindung betrifft ein Verfahren zur Verformung von Stegdoppelplatten aus thermoplastischen Kunststoffen, die Stegkanäle aufweisen, nach dem Tiefziehverfahren durch Vakuumverformung, Preßluftverformung oder durch Formung mit Hilfe eines Formwerkzeuges mit Gegenstempel.The invention relates to a method for deforming double-walled sheets made of thermoplastics, the web channels have, according to the deep-drawing process by vacuum deformation, compressed air deformation or by Forming with the help of a forming tool with counter punch.
Stegdoppelplatten werden üblicherweise hergestellt aus verschiedensten thermoplastischen Kunststoffen in Dicken, die normalerweise zwischen 3 und 15 mm liegen, mit einem Flächengewicht zwischen 4oo bis 3ooo g/m . Solche Stegdoppelplatten zeichnen sich durch eine hohe Steifigkeit bezogen auf das Flächengewicht aus.Double-skin sheets are usually made from a wide variety of thermoplastics in thicknesses, which are normally between 3 and 15 mm, with a weight per unit area of between 400 and 300 g / m. Such double-walled sheets are characterized by a high degree of rigidity based on the basis weight.
Für viele technische Anwendungsgebiete ist es wünschenswert, diese Platten nach den bekannten Verfahren der Tiefziehtechnik zu verformen. Es war jedoch bisher nicht möglich, derartige Stegdoppelplatten im Tiefziehverfahren umzuformen, ohne das stützende Gitterwerk der Stegfoppelplatte mehr oder weniger zu verformen, wodurch die Festigkeitseigenschaften, z.B. die Steifigkeit verschlechtert werden. Dies liegt insbesondere daran, daß bei der Verformung der Stegdoppelplatten die Stegkanäle zusammengedrückt werden und daß die Plattenoberfläche zwischen den einzelnen Stegen einfällt.For many technical fields of application, it is desirable to use these plates by the known methods of Deform deep drawing technology. However, it hasn't been so far possible, such multi-wall sheets in the deep-drawing process to reshape without deforming the supporting latticework of the double wall sheet more or less, whereby the Strength properties such as rigidity are deteriorated. This is particularly due to the fact that the Deformation of the double-walled sheets, the web channels are compressed and that the sheet surface between occurs to the individual webs.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Verformung von Stegdoppelplatten aus thermoplastischen Kunststoffen, die Stegkanäle aufweisen, nach dem Tiefziehverfahren zu schaffen, bei dessen Anwendung die Festigkeitseigenschaften der Stegdoppelplatten nicht herabgesetzt werden, bei dessen Anwendung insbesondere die Stegkanäle nicht zusammengedrückt werden und die Plattenoberfläche zwischen den einzelnen Stegen nicht einfällt.The invention is therefore based on the object of a method for deforming double-walled sheets made of thermoplastic Plastics that have bar channels to create according to the deep-drawing process, when using the Strength properties of the double-skin sheets are not reduced, in particular the The web channels are not compressed and the plate surface between the individual webs is not occurs.
Oc ■ ■ 0 / 0 f>Oc ■ ■ 0/0 f>
Diese Aufgabe wird aufgehend von dem Verfahren der eingangsgenannten Gattung dadurch gelöst, daß vor der Verformung der Stegdoppelplatten die einzelnen Stegkanäle der Stegdoppelplatten abgedichtet werden.This task is based on the method of the aforementioned Genus solved in that the individual web channels before the deformation of the double web plates the double-skin sheets are sealed.
Es wurde gefunden, daß durch Einschluß von Luft in den einzelnen Stegkanälen der Stegdoppelplatten die geschilderten Störungen der Stegdoppelplatten während der Verformung vermieden werden können. Dabei überrascht, daß die in den Kanälen der Stegdoppelplatten eingeschlossene Luft als Stützkissen ausreicht, um ein Zusammenfallen der Stegdoppelplatte während der Verformung zu vermeiden.It has been found that the described Disturbances of the double-walled sheets during the deformation can be avoided. It is surprising that those in the Air trapped in the channels of the double-walled sheets as a support cushion is sufficient to prevent the double-walled sheet from collapsing to avoid during deformation.
Die nach dem erfindungsgemäßen Verfahren verformten Stegdoppelplatten können in verschiedensten Gebieten Verwendung finden: z.B. Automobilbau zur Herstellung von Automobilhimmel, Türfüllungen, Kofferraumabdeckungen. Im Vergleich zu den herkömmlichen Materialien z.B. Preßpappe, Polymerschäumen oder harzgetränkten Fasern bieten Teile aus solcherart hergestellten Stegdoppelplatten die Vorteile hoher Steifigkeit bei gleichzeitiger Elastizität, des guten Wärmeisolationsvermögens, des geringen Gewichts und der fehlenden Feuchtigkeitsempfindlichkeit. Bei der Verwendung solcher verformter Stegdoppelplatten ist ein Einbau von Verstärkungen nicht erforderlich, da. das Material selbsttragend ist.The double-walled sheets deformed by the method according to the invention can be used in a wide variety of fields find: e.g. automobile construction for the production of automobile headliners, door panels, trunk covers. in the Compared to conventional materials, e.g. press cardboard, polymer foams or resin-soaked fibers, parts offer parts from double-walled sheets produced in this way the advantages of high rigidity with simultaneous elasticity, des good thermal insulation properties, low weight and lack of moisture sensitivity. When using Such deformed double-walled sheets do not require the installation of reinforcements because. the material is self-supporting.
In einer ersten Variante des Verfahrens umfaßt dieses den Verfahrensschritt, daß die Stegkanäle durch Quetschen abgedichtet werden. - Dieser Quetschvorgang läßt sich besonders einfach und herstellungsgünstig ausführen.In a first variant of the method, this includes the step of squeezing the web channels be sealed. - This squeezing process can be carried out particularly easily and inexpensively.
In einer zweiten Variante des Verfahrens ist vorgesehen, daß die Stegkanäle durch Verschweißen abgedichtet werden. Diese Abdichtung kann besonders vollkommen erfolgen.In a second variant of the method it is provided that the web channels are sealed by welding. These Sealing can be particularly complete.
Eine dritte Variante des Verfahrens hat das Merkmal, daß die Stegkanäle durch Anwendung von Abdichtungselementen abgedichtet v/erden. Diese Abdichtung kann ebenfalls sehr dicht sein, ohne daß zu diesem Zweck eine Verformung der Enden der Stegkanäle vorgenommen werden muß.A third variant of the method has the feature that the web channels are made by using sealing elements sealed v / earth. This seal can also be very tight without having to do this a deformation of the ends of the web channels must be made.
Die Erfindung wird im folgenden anhand einer Zeichnung mit sieben Figuren erläutert. Es zeigt :The invention is explained below with reference to a drawing with seven figures. It shows :
Fig. 1 sine erste nach dem Stand der Technik verformte Stegdoppelplatte im Querschnitt;Fig. 1 is a first deformed according to the prior art Double-walled sheet in cross-section;
Fig. 1A einen vergrößerten Ausschnitt aus der Stegdoppelplatte nach Fig. 1; FIG. 1A shows an enlarged section from the double web plate according to FIG. 1; FIG.
Fig. 2 eine zweite nach dem Stand der Technik verformte Stegdoppelplatte im Querschnitt;2 shows a second double-walled sheet metal deformed according to the prior art, in cross section;
Fig. 3A eine unverformte Stegdoppelplatte im Längsschnitt; 3A shows an undeformed double web plate in longitudinal section;
Fig. 3B die Stegdoppelplatte gemäß Fig. 3A, aber nach Verschließen der Enden der Stegkanäle;3B shows the double web plate according to FIG. 3A, but after the ends of the web channels have been closed;
Fig. 3C die Stegdoppelplatte gemäß Fig. 3B, jedoch nach Verformung durch Tiefziehen, und3C shows the double-walled sheet according to FIG. 3B, but after deformation by deep-drawing, and
Fig. 3D die Stegdoppelplatte nach Fig. 3C in einer Draufsicht.FIG. 3D the double web plate according to FIG. 3C in a top view.
In Fig. 1 ist in Verbindung mit Fig. 1A veranschaulicht, wie Stege von Stegkanälen in Stegdoppelplatten, die in üblicher Weise nach dem Tiefziehverfahren mit offenen Enden der Stegkanäle verformt werden, zusammengedrückt werden.In Fig. 1 in connection with Fig. 1A it is illustrated such as webs of web channels in double web sheets, which are in the usual way after the deep-drawing process with open Ends of the web channels are deformed, compressed will.
0 3 0 0 3 0/05310 3 0 0 3 0/0531
Fig. 2 zeigt das typische Einfallen der Plattenoberfläche zwischen den einzelnen Stegen, der in herkömmlicher Weise verformten Stegdoppelplatten.Fig. 2 shows the typical collapse of the plate surface between the individual webs, which in conventional Way deformed double-skin sheets.
Fig. 3A zeigt im Querschnitt eine Stegdoppelplatte aus thermoplastischem Material vor der Verformung nach dem erfindungsgemäßen Verfahren. Fig. 3B zeigt die gleiche Stegdoppelplatte, nachdem die Ränder der Stegdoppelplatten quer zur Kanalrichtung der Stege geschlossen wurden. Dies kann durchFig. 3A shows in cross section a double web sheet made of thermoplastic material before the deformation after method according to the invention. Fig. 3B shows the same double-walled sheet after the edges of the double-walled sheets The bridges were closed transversely to the direction of the canal. This can be done by
Quetschen oder Schweißen oder Abdichten mit Abdichtungselementen geschehen. Squeezing or welding or sealing done with sealing elements.
Fig. 3C zeigt im Querschnitt die nach dem erfindungsgemäßen Verfahren behandelte Stegdoppelplatten der Fig. 3A nach der Verformung durch Tiefziehen, bei dem die Stegstruktur sowie die Oberfläche der Stegkanäle unbeeinträchtigt bleiben. Fig. 3D zeigt eine Draufsicht auf die verformten Stegdoppelplatten, aus der man die Richtung der unterbrochen gekennzeichneten Stege erkennen kann, ebenso die abgedichteten Enden auf beiden Seiten der Stegkanäle.FIG. 3C shows, in cross section, the double-walled sheets of FIG. 3A treated according to the method according to the invention the deformation by deep drawing, in which the bar structure and the surface of the bar channels are unaffected stay. Fig. 3D shows a plan view of the deformed double web plates, from which the direction of the interrupted can recognize marked webs, as well as the sealed ends on both sides of the web channels.
030030/0531030030/0531
Claims (4)
dadurch gekennzeichnet, daß die Stegkanäle durch Quetschen abgedichtet werden.2. The method according to claim 1,
characterized in that the web channels are sealed by squeezing.
dadurch gekennzeichnet, daß die Stegkanäle durch Verschweißen abgedichtet werden.3. The method according to claim 1,
characterized in that the web channels are sealed by welding.
dadurch gekennzeichnet, daß die Stegkanäle durch Anwendung von Abdichtungselementen abgedichtet werden. 4. The method according to claim 1,
characterized in that the web channels are sealed by using sealing elements.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT7919299A IT7919299A0 (en) | 1979-01-15 | 1979-01-15 | PROCEDURE FOR FORMING HOLLOW SHEETS OF THERMOPLASTIC RESINS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2912772A1 true DE2912772A1 (en) | 1980-07-24 |
Family
ID=11156533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792912772 Withdrawn DE2912772A1 (en) | 1979-01-15 | 1979-03-30 | METHOD FOR DEFORMING ROCK DOUBLE PANELS FROM THERMOPLASTIC PLASTICS |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS55113522A (en) |
| AT (1) | AT369692B (en) |
| BE (1) | BE881114A (en) |
| DE (1) | DE2912772A1 (en) |
| ES (1) | ES8100147A1 (en) |
| FR (1) | FR2446162A1 (en) |
| GB (1) | GB2039824B (en) |
| IT (1) | IT7919299A0 (en) |
| NL (1) | NL7902647A (en) |
| SE (1) | SE7902362L (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19918783A1 (en) * | 1999-04-26 | 2000-11-02 | Kr Porsiplast Verpackungssys | Method and device for deforming hollow bodies made of thermoplastic material |
| US6923928B1 (en) | 1999-04-26 | 2005-08-02 | Kr-Porsiplast Verpackungssysteme Gmbh | Method and device for shaping thermoplastic hollow boards |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345221Y2 (en) * | 1985-10-03 | 1991-09-25 | ||
| FR2607434B1 (en) * | 1986-11-28 | 1989-02-24 | Beghin Say Sa | PROCESS FOR THERMOFORMING A DOUBLE-WALLED PLATE |
| FR2698901B3 (en) * | 1992-12-07 | 1994-10-28 | Ecodis Sa | Method of manufacturing a dome for the overhead lighting and the dome obtained. |
| NL9402035A (en) * | 1994-12-02 | 1996-07-01 | Shannon Bv | Method for applying sealing edges in panels of thermoplastic material and an assembly therefor. |
| FI115391B (en) | 2001-10-03 | 2005-04-29 | Kwh Pipe Ab Oy | A method for manufacturing a lightweight container end and a container having such an end |
| DE10253119A1 (en) * | 2002-11-13 | 2004-06-03 | Happich Fahrzeug- Und Industrieteile Gmbh | Method for producing an outer door element and outer door element |
-
1979
- 1979-01-15 IT IT7919299A patent/IT7919299A0/en unknown
- 1979-03-16 SE SE7902362A patent/SE7902362L/en not_active Application Discontinuation
- 1979-03-27 AT AT0225779A patent/AT369692B/en not_active IP Right Cessation
- 1979-03-30 DE DE19792912772 patent/DE2912772A1/en not_active Withdrawn
- 1979-04-04 NL NL7902647A patent/NL7902647A/en not_active Application Discontinuation
-
1980
- 1980-01-11 BE BE0/198936A patent/BE881114A/en not_active IP Right Cessation
- 1980-01-11 GB GB8001022A patent/GB2039824B/en not_active Expired
- 1980-01-14 JP JP220080A patent/JPS55113522A/en active Pending
- 1980-01-15 FR FR8000815A patent/FR2446162A1/en not_active Withdrawn
- 1980-01-15 ES ES487696A patent/ES8100147A1/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19918783A1 (en) * | 1999-04-26 | 2000-11-02 | Kr Porsiplast Verpackungssys | Method and device for deforming hollow bodies made of thermoplastic material |
| US6613269B1 (en) | 1999-04-26 | 2003-09-02 | Kr-Porsiplast Verpackungssysteme Gmbh | Method and device for shaping hollow bodies made of thermoplastic material |
| US6923928B1 (en) | 1999-04-26 | 2005-08-02 | Kr-Porsiplast Verpackungssysteme Gmbh | Method and device for shaping thermoplastic hollow boards |
Also Published As
| Publication number | Publication date |
|---|---|
| ES487696A0 (en) | 1980-11-01 |
| AT369692B (en) | 1983-01-25 |
| SE7902362L (en) | 1980-07-16 |
| JPS55113522A (en) | 1980-09-02 |
| BE881114A (en) | 1980-07-11 |
| NL7902647A (en) | 1980-07-17 |
| ATA225779A (en) | 1982-06-15 |
| ES8100147A1 (en) | 1980-11-01 |
| GB2039824A (en) | 1980-08-20 |
| FR2446162A1 (en) | 1980-08-08 |
| GB2039824B (en) | 1982-12-22 |
| IT7919299A0 (en) | 1979-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |