WO1997032709A1 - Verfahren zum herstellen eines spritzgiessformteils aus thermoplastischem kunststoff und spritzgiessformteil - Google Patents
Verfahren zum herstellen eines spritzgiessformteils aus thermoplastischem kunststoff und spritzgiessformteil Download PDFInfo
- Publication number
- WO1997032709A1 WO1997032709A1 PCT/EP1997/000969 EP9700969W WO9732709A1 WO 1997032709 A1 WO1997032709 A1 WO 1997032709A1 EP 9700969 W EP9700969 W EP 9700969W WO 9732709 A1 WO9732709 A1 WO 9732709A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- window
- injection molding
- molded part
- injection
- thermoplastic
- 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.)
- Ceased
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/06—Single frames
- E06B3/08—Constructions depending on the use of specified materials
- E06B3/20—Constructions depending on the use of specified materials of plastics
- E06B3/22—Hollow frames
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C2045/0093—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of articles provided with an attaching element
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14377—Coating a portion of the article, e.g. the edge of the article using an additional insert, e.g. a fastening element
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14434—Coating brittle material, e.g. glass
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1679—Making multilayered or multicoloured articles applying surface layers onto injection-moulded substrates inside the mould cavity, e.g. in-mould coating [IMC]
Definitions
- the invention relates to a method for producing an injection molded part from at least one thermoplastic
- Plastic with at least one integrated cavity in a mold cavity, the cavity-delimiting wall of the injection mold part being formed directly by the thermoplastic, and the internal gas pressure process being used for the production of the injection mold part.
- the invention relates to an injection mold part made of at least one thermoplastic material with at least one integrated cavity and the use of an injection mold part with cavities.
- pressurized fluid in particular pressurized gas
- pressurized gas is injected into the still molten plastic material in the mold cavity during the injection molding process of plastic moldings.
- the pressurized gas inside the part prevents the formation of sink marks on the surface of the molded part during the cooling of the plastic, which would otherwise be feared by the volume contraction of the material.
- the molded part with a cavity becomes lighter than a comparable part with a solid construction.
- the gas pressure process also uses less plastic material than would be the case with solid parts. Basically, the gas pressure process is suitable for a wide range of molded parts for which the above advantages are to be used.
- EP 0404 222 B1 refers to the production of a
- Plastic box sw parked Here, in particular, bottle crates are thought of which are to be made hollow for easier transport. Another aspect is that the area of the handle should be made thick and hollow in order to make carrying the box more comfortable.
- DE 42 09 600 C2 relates to the application of the gas pressure process for automotive interior components.
- the method is used in particular for door linings, trim parts for the instrument panel, pillar trim parts and center console parts for motor vehicles.
- the present invention is based on the problem of finding further advantageous applications for the internal gas pressure process in which the known advantages can be used.
- the solution to this problem by the invention is characterized in that for the manufacture of a window frame or sash for a building pressurized fluid is injected into the still molten thermoplastic material so that cavities form in the desired areas.
- the window sash can be designed with respect to the distribution of the cavities so that the cavities lead to a lower mass moment of inertia about the pivot axis of the sash, that is, the inertia of the sash can be reduced by weight in the areas of the window sash
- Axis of rotation are far away, be kept low. This enables easier handling of the window.
- thermoplastic material polyvinylchloride
- insert parts in particular latch, reinforcement and peripheral parts of the window frame or window sash, are inserted into the tool before the tool is closed, which parts are overmolded during the injection molding process.
- At least one thermoplastic plastic in addition to the at least one thermoplastic plastic, at least one lacquer is also injected into the tool, so that the window frame or Window sash is at least partially from the paint jacket by the injection molding process.
- the window pane can also be introduced by the injection molding process itself, which is why it is provided that the window pane of the window is inserted into the tool during the manufacture of a window sash and is encapsulated by the injection molding process.
- the window pane can consist of glass or plastic, in particular polycarbonate (PC). It can also have a metal grid.
- PC polycarbonate
- the injection molding according to the invention made of at least one thermoplastic with at least one integrated cavity, which is produced in the production of the molding by injection of pressurized fluid, is characterized in that the injection molding is a window frame or a window sash for a building that has cavities in the desired areas .
- the window sash can advantageously have an overmolded window pane, which can consist of glass or plastic, in particular of polycarbonate (PC); it can have a metal grid.
- an overmolded window pane which can consist of glass or plastic, in particular of polycarbonate (PC); it can have a metal grid.
- the invention relates to the use of an injection molding, in particular produced by the described method, with hollow points as window frames or window sashes for a building.
- FIG. 1 shows schematically a window sash in three-dimensional representation.
- the window sash 1 is manufactured by injection molding.
- the plastic used is preferably PVC. While usually only one type of thermoplastic is used, an alternative can be used it is also provided that more than one thermoplastic material, in particular two different thermoplastic (2-component processes), are used. The figure does not go into structural details, for example how the wing 1 must be divided in order to mount the window glass, etc.
- a gas bubble 2 extends over a certain area of the wing leg 3.
- the cavity 2 extends over the entire leg area, i.e. extends over all four legs 3, 4, 5 and 6 and results in a closed form. In this case, the cavity extends over the entire course of the legs.
- locking, reinforcing and / or peripheral parts can be inserted into the mold, which are then encapsulated during the injection molding process.
- recess 9 only recesses can be created during the injection molding process, which enable the later assembly of locking, reinforcement and peripheral parts. This is indicated by the recess 9.
- the window frame or sash 1 is already painted in the tool.
- the in-mold paint technology known per se is used for this.
- the window pane is already “assembled” by the injection molding process, in which it is encapsulated with thermoplastic.
- the window pane is placed in the open injection mold during the manufacture of the window sash.
- the disc is positioned relative to the tool cavity.
- the injection molding process it is firmly connected to the window sash 1; the window sash is largely removed from the injection mold ready for installation.
- This method is particularly suitable if a plastic window pane is used; Here polycarbonate (PC), which is characterized by a high breaking strength, is used in particular as the pane material.
- PC polycarbonate
- the object according to the invention is particularly suitable for the production of standard windows, which can be manufactured very inexpensively in this way. There are special uses for basement windows that can be standardized more easily than normal windows.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97908153A EP0885106A1 (de) | 1996-03-04 | 1997-02-28 | Verfahren zum herstellen eines spritzgiessformteils aus thermoplastischem kunststoff und spritzgiessformteil |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19607992.6 | 1996-03-04 | ||
| DE1996107992 DE19607992A1 (de) | 1996-03-04 | 1996-03-04 | Verfahren zum Herstellen eines Spritzgießformteils aus thermoplastischem Kunststoff und Spritzgießformteil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997032709A1 true WO1997032709A1 (de) | 1997-09-12 |
Family
ID=7786980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1997/000969 Ceased WO1997032709A1 (de) | 1996-03-04 | 1997-02-28 | Verfahren zum herstellen eines spritzgiessformteils aus thermoplastischem kunststoff und spritzgiessformteil |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0885106A1 (de) |
| DE (1) | DE19607992A1 (de) |
| WO (1) | WO1997032709A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2860543A1 (fr) * | 2003-10-07 | 2005-04-08 | Andre Ertzscheid | Procede de fabrication d'un moyen de fermeture et moyen de fermeture obtenu |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6228290B1 (en) * | 1999-07-23 | 2001-05-08 | Gemtron Corporation | Method of manufacturing an encapsulated, dual lens, sealed instrument cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0371773A2 (de) * | 1988-11-29 | 1990-06-06 | Hashimoto Forming Industry Co Ltd | Fenster für Kraftfahrzeuge und deren Herstellungsverfahren |
| GB2227444A (en) * | 1989-01-31 | 1990-08-01 | Jonathan Christopher Mott | Injection moulding hollow articles |
| EP0440020A2 (de) * | 1990-01-29 | 1991-08-07 | Schade Kg | Verfahren zum Herstellen von hohlgespritzten Formkörpern aus Kunststoff und Vorrichtung zur Durchführung des Verfahrens |
| DE4226390A1 (de) * | 1991-08-13 | 1993-02-18 | Toyoda Gosei Kk | Hohlkoerper-spritzgiessverfahren |
| DE4300397A1 (de) * | 1992-01-28 | 1993-07-29 | Hendry James W | |
| WO1994008773A1 (de) * | 1992-10-08 | 1994-04-28 | Battenfeld Gmbh | Verfahren zum spritzgiessen von formteilen aus thermoplastischem kunststoffmaterial sowie werkzeug zur durchführung desselben |
| GB2282627A (en) * | 1993-10-06 | 1995-04-12 | Anglian Windows Ltd | Window frames, window vents and manufacture thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH574321A5 (de) * | 1974-01-04 | 1976-04-15 | Lo Sfruttamento Di Brevetti Sa | |
| US4951927A (en) * | 1985-03-11 | 1990-08-28 | Libbey-Owens-Ford Co. | Method of making an encapsulated multiple glazed unit |
| DE4022593C2 (de) * | 1990-07-16 | 2001-09-13 | Bock Martin Kunststoff | Kunststoff-Spritzguß- Armlehne und Verfahren zur Herstellung der Armlehne |
-
1996
- 1996-03-04 DE DE1996107992 patent/DE19607992A1/de not_active Withdrawn
-
1997
- 1997-02-28 EP EP97908153A patent/EP0885106A1/de not_active Withdrawn
- 1997-02-28 WO PCT/EP1997/000969 patent/WO1997032709A1/de not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0371773A2 (de) * | 1988-11-29 | 1990-06-06 | Hashimoto Forming Industry Co Ltd | Fenster für Kraftfahrzeuge und deren Herstellungsverfahren |
| GB2227444A (en) * | 1989-01-31 | 1990-08-01 | Jonathan Christopher Mott | Injection moulding hollow articles |
| EP0440020A2 (de) * | 1990-01-29 | 1991-08-07 | Schade Kg | Verfahren zum Herstellen von hohlgespritzten Formkörpern aus Kunststoff und Vorrichtung zur Durchführung des Verfahrens |
| DE4226390A1 (de) * | 1991-08-13 | 1993-02-18 | Toyoda Gosei Kk | Hohlkoerper-spritzgiessverfahren |
| DE4300397A1 (de) * | 1992-01-28 | 1993-07-29 | Hendry James W | |
| WO1994008773A1 (de) * | 1992-10-08 | 1994-04-28 | Battenfeld Gmbh | Verfahren zum spritzgiessen von formteilen aus thermoplastischem kunststoffmaterial sowie werkzeug zur durchführung desselben |
| GB2282627A (en) * | 1993-10-06 | 1995-04-12 | Anglian Windows Ltd | Window frames, window vents and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2860543A1 (fr) * | 2003-10-07 | 2005-04-08 | Andre Ertzscheid | Procede de fabrication d'un moyen de fermeture et moyen de fermeture obtenu |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0885106A1 (de) | 1998-12-23 |
| DE19607992A1 (de) | 1997-09-11 |
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