EP0257106B1 - Method and apparatus for making articles from bonded fibres - Google Patents
Method and apparatus for making articles from bonded fibres Download PDFInfo
- Publication number
- EP0257106B1 EP0257106B1 EP86110333A EP86110333A EP0257106B1 EP 0257106 B1 EP0257106 B1 EP 0257106B1 EP 86110333 A EP86110333 A EP 86110333A EP 86110333 A EP86110333 A EP 86110333A EP 0257106 B1 EP0257106 B1 EP 0257106B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressing tool
- tool part
- opening
- blow
- fibers
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 37
- 239000000835 fiber Substances 0.000 claims description 24
- 238000007664 blowing Methods 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N5/00—Manufacture of non-flat articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/086—Presses with means for extracting or introducing gases or liquids in the mat
Definitions
- the invention relates to a process for the production of profiled bodies from dry or low-moisture glued fibers by filling into the press space of a plate press consisting at least of the upper press part and the lower press part and subsequent compression in the plate press, the glued fibers being passed in an air stream in the closed,
- the size of the press bulk space corresponding to the bulk volume of the profile body is blown in, which has at least one blowing opening and at least one blowing opening covered with a sieve, and the glued fibers are then compressed by moving the upper press part in the direction of the lower press part.
- the fibers can, for example, be a fibrous material which is produced from particles containing cellulose or lignocellulose in such a way that they are digested with steam, hot water or weak alkalis and defibrated in defibrators and then dried.
- other fibers such as glass fibers, can also be processed with the method according to the invention.
- thermosetting synthetic resins it is known from such fibers, which have previously been glued with thermosetting synthetic resins, to produce thin-walled plates or profile bodies in thicknesses of 1 to 5 mm for use in vehicle construction, in the furniture industry or in the electrical engineering industry.
- the procedure is such that only slightly compressed, flat mats are produced, which are then pressed in a second operation in a press with simultaneous supply of heat to the finished profile body.
- the fiberboard is already fully cured. These are softened again by applying moisture and heat and then pressed into the finished profile body in a press.
- the object on which the invention is based is therefore to specify a method and an apparatus which make it possible to produce profile bodies from glued fibers directly and without major outlay on equipment.
- the upper press part is shaped such that it overlaps the lower press part on all sides and thus forms the press space, and that the injection opening and the blow-out opening are arranged in the side parts of the upper press part which overlap the lower press part, and in that the blowing process is carried out at press upper part placed on the lower press part.
- the fibers can be blown into the volume in a uniform or deliberately non-uniform distribution and pressed to the profiled body immediately after the volume has been filled.
- the profile bodies to be produced have a strongly structured shape or if they are to have different densities at different locations, it has proven to be expedient to glue the glued fibers in the press in which they were blown in only to a part of the desired final density compress it into a pre-compact, take it out of this press, insert it into a second press and finish it there with the addition of heat to final density.
- FIGS. 1 and 2 The exemplary embodiment of a device for carrying out the method according to the invention is illustrated in FIGS. 1 and 2.
- the press shown has a fixed pressing tool lower part 1 and a pressing tool upper part 2, which can be moved in the direction of arrow 3 towards the pressing tool lower part 1 and away from it.
- Fig. 1 the press is shown in the open state; then the volume 4 to be filled with the glued fibers is present between the pressing tool lower part 1 and the pressing tool upper part 2.
- This volume 4 is delimited on the left side by the injection opening 5, through which the glued fibers transported in a compressed air line are blown into the volume.
- the counterpart to the blowing opening namely the blowing opening 7 closed with a sieve 6, can be seen, through which the air which is no longer required can be discharged or possibly even extracted.
- the press can be provided with several blow-out openings which are connected to a common exhaust line 8.
- the blow-out openings can be used in different ways to fill the fibers into the volume either uniformly or specifically non-uniformly (for the purpose of producing different densities in the profile body). For this purpose, they can have different cross sections, for example. However, it is also possible to provide the suction openings with devices, such as flaps, which allow the cross-section to be changed continuously. The same effect can be achieved by connecting suction devices with controllable negative pressure to the suction openings.
- the pressing tool lower part 2 is provided with a plurality of channels 9 of small cross-section, which are connected to the atmosphere, but can also be acted upon by compressed air. If the channels 9 are in connection with the atmosphere, then they prevent a vacuum formation below the pressed profile body, which prevent it from being released from the lower part of the pressing tool. If the channels 9 are pressurized with compressed air after the pressing process, then the pressed profile body is raised and can be easily removed from the press.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Profilkörpern aus trockenen oder nur eine geringe Feuchtigkeit aufweisenden beleimten Fasern durch Einfüllen in den Pressenraum einer mindestens aus Pressenoberteil und Pressenunterteil bestehenden Plattenpresse und anschließendes Verdichten in der Plattenpresse, wobei die beleimten Fasern in einem Luftstrom in den geschlossenen, in seiner Größe dem Faserschüttvolumen des Profilkörpers entsprechenden Pressenraum eingeblasen werden, der wenigstens eine Einblasöffnung und wenigstens eine mit einem Sieb abgedeckte Ausblasöffnung aufweist, und wobei die beleimten Fasern anschließend durch Bewegen des Pressenoberteils in Richtung auf das Pressenunterteil verdichtet werden.The invention relates to a process for the production of profiled bodies from dry or low-moisture glued fibers by filling into the press space of a plate press consisting at least of the upper press part and the lower press part and subsequent compression in the plate press, the glued fibers being passed in an air stream in the closed, The size of the press bulk space corresponding to the bulk volume of the profile body is blown in, which has at least one blowing opening and at least one blowing opening covered with a sieve, and the glued fibers are then compressed by moving the upper press part in the direction of the lower press part.
Ein solches Verfahren ist bekannt ( DE - B - 16 53 194 ). Bei dem bekannten Verfahren werden die beleimten Fasern in einem Luftstrom in den von dem Pressenunterteil und einem auf diesem angeordneten Sieb gebildeten Raum eingeblasen. Dieses Verfahren erfordert einen größeren apparativen Aufwand, weil vor und nach dem Pressen eines Profilkörpers das Sieb hin- und hertransportiert werden muß.Such a method is known (DE-B-16 53 194). In the known method, the glued fibers are blown in an air stream into the space formed by the lower press part and a screen arranged thereon. This method requires more equipment because the screen has to be transported back and forth before and after pressing a profile body.
Bei den Fasern kann es sich beispielsweise um einen faserigen Werkstoff handeln, der aus zellulose- bzw. lignozellulosehaltigen Teilchen in der Weise hergestellt wird, daß diese mit Dampf, heißem Wasser oder schwachen Laugen aufgeschlossen und in Defibratoren zerfasert und anschließend getrocknet werden. Mit dem erfindungsgemäßen Verfahren können aber auch andere Fasern, wie Glasfasern, verarbeitet werden.The fibers can, for example, be a fibrous material which is produced from particles containing cellulose or lignocellulose in such a way that they are digested with steam, hot water or weak alkalis and defibrated in defibrators and then dried. However, other fibers, such as glass fibers, can also be processed with the method according to the invention.
Es ist bekannt, aus solchen Fasern, welche zuvor mit wärmehärtenden Kunstharzen beleimt worden sind, dünnwandige Platten oder Profilkörper in Stärken von 1 bis 5 mm für die Verwendung im Fahrzeugbau, in der Möbel industrie oder in der elektrotechnischen Industrie herzustellen.It is known from such fibers, which have previously been glued with thermosetting synthetic resins, to produce thin-walled plates or profile bodies in thicknesses of 1 to 5 mm for use in vehicle construction, in the furniture industry or in the electrical engineering industry.
Bei der Herstellung der Profilkörper wird bei den bekannten Verfahren beispielsweise in der Weise vorgegangen, daß aus den Fasern nur wenig verdichtete, ebene Matten hergestellt werden, welche anschließend in einem zweiten Arbeitsgang in einer Presse unter gleichzeitiger Zufuhr von Wärme zum fertigen Profilkörper verpreßt werden. Bei einem anderen bekannten Verfahren zur Herstellung der dünnwndigen Profilkörper wird von bereits fertig ausgehärteten Faserplatten ausgegangen. Diese werden durch Anwendung von Feuchtigkeit und Hitze wieder erweicht und danach in einer Presse zum fertigen Profilkörper verpreßt.In the production of the profile body, for example, in the known methods the procedure is such that only slightly compressed, flat mats are produced, which are then pressed in a second operation in a press with simultaneous supply of heat to the finished profile body. In another known method for producing the thin-walled profile body, it is assumed that the fiberboard is already fully cured. These are softened again by applying moisture and heat and then pressed into the finished profile body in a press.
Dieses bekannte Herstellungsverfahren für Profilkörper aus Fasern ist sowohl in technischer als auch in wirtschaftlicher Sicht sehr aufwendig, und es ist auch die Verformbarkeit der Zwischenprodukte erheblich eingeschränkt. Es würde deshalb eine starke technische Verbesserung und damit einen wirtschaftlichen Vorteil bedeuten, wenn es möglich wäre, Profilkörper ohne die Stufe über Zwischen produkte direkt direkt aus beleimten Fasern herzustellen. Dies ist bisher nicht möglich gewesen, da die beleimten Fasern extrem leicht und schwierig zu handhaben sind.This known production process for fiber profile bodies is very complex both from a technical and an economic point of view, and the deformability of the intermediate products is also considerably restricted. It would therefore be a major technical improvement and thus an economic advantage if it were possible to direct profile bodies without the step via intermediate products to be made directly from glued fibers. This has not been possible until now because the glued fibers are extremely light and difficult to handle.
Die der Erfindung zugrunde liegende Aufgabe besteht deshalb darin, ein Verfahren und eine Vorrichtung anzugeben, welche es gestatten, Profilkörper aus beleimten Fasern direkt und ohne größeren apparativen Aufwand herzustellen.The object on which the invention is based is therefore to specify a method and an apparatus which make it possible to produce profile bodies from glued fibers directly and without major outlay on equipment.
Diese technische Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Pressenoberteil derartig geformt ist, daß es das Pressenunterteil allseitig übergreift und so den Pressenraum bildet, und daß die Einblasöffnung und die Ausblasöffnung in den das Pressenunterteil übergreifenden Seitenteilen des Pressenoberteils angeordnet sind, und daß der Blasvorgang bei auf dem Pressenunterteil aufgesetztem Pressenoberteil stattfindet.This technical problem is solved according to the invention in that the upper press part is shaped such that it overlaps the lower press part on all sides and thus forms the press space, and that the injection opening and the blow-out opening are arranged in the side parts of the upper press part which overlap the lower press part, and in that the blowing process is carried out at press upper part placed on the lower press part.
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens sind in den Ansprüchen 2 und 3 enthalten. Das Ausführungsbeispiel einer Vorrichtung für die Durchführung des erfindungsgemäßen Verfahrens ist in den Ansprüchen 4 bis 7 enthalten und nachstehend anhand der Figuren 1 und 2 erläutert. Es zeigen :
- Fig. 1
- den Längsschnitt durch eine Presse zur Herstellung von Profilkörpern aus beleimten Fasern
- und Fig. 2
- die Draufsicht auf die Vorrichtung gemäß Fig. 1.
- Fig. 1
- the longitudinal section through a press for the production of profile bodies from glued fibers
- and Fig. 2
- the top view of the device of FIG. 1st
Wenn mit dem erfindungsgemäßen Verfahren Profilkörper hergestellt werden sollen, welche nicht stark strukturiert, sondern im wesentlichen eben sind, dann können die Fasern in gleichmäßiger oder gezielt ungleichmäßiger Verteilung in das Volumen eingeblasen und unmittelbar nach der Füllung des Volumens zum Profilkörper gepreßt werden. Weisen dagegen die herzustellenden Profilkörper eine stark strukturierte Gestalt auf oder sollen sie an verschiedenen Orten verschiedene Dichten aufweisen, so hat es sich als zweckmäßig erwiesen, die beleimten Fasern in der Presse, in welcher sie eingeblasen worden sind, nur bis auf einen Teil der gewünschten Enddichte zu einem Vorpreßling zu verdichten, diesen aus dieser Presse herauszunehmen, in eine zweite Presse einzulegen und ihn dort unter Zufuhr von Wärme auf Enddichte fertig zu pressen. Bei diesem zweistufigen Verfahren ist es in einfacher Weise möglich, den fertigen Profilkörper mit unterschiedlichen Dichten herzustellen. Dies kann in einfacher Weise dadurch geschehen, daß die Preßwerkzeuge der zweiten Presse an den Stellen, an denen der Profilkörper stärker verdichtet werden soll, eine andere Form aufweisen, als die Preßwerkzeuge der ersten Presse.If the process according to the invention is to be used to produce profiled bodies which are not highly structured but are essentially flat, then the fibers can be blown into the volume in a uniform or deliberately non-uniform distribution and pressed to the profiled body immediately after the volume has been filled. If, on the other hand, the profile bodies to be produced have a strongly structured shape or if they are to have different densities at different locations, it has proven to be expedient to glue the glued fibers in the press in which they were blown in only to a part of the desired final density compress it into a pre-compact, take it out of this press, insert it into a second press and finish it there with the addition of heat to final density. With this two-stage process, it is easily possible to produce the finished profile body with different densities. This can be done in a simple manner in that the pressing tools of the second press to the Places where the profile body is to be compressed more have a different shape than the pressing tools of the first press.
Das Ausführungsbeispiel einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens ist in den Figuren 1 und 2 verdeutlicht. Die gezeigte Presse besitzt ein feststehendes Preßwerkzeugunterteil 1 und ein Preßwerkzeugoberteil 2, welches in Richtung des Pfeiles 3 auf das Preßwerkzeugunterteil 1 hin und von diesem weg bewegt werden kann. In Fig. 1 ist die Presse in geöffnetem Zustand gezeigt; dann ist zwischen dem Preßwerkzeugunterteil 1 und dem Preßwerkzeugoberteil 2 das mit den beleimten Fasern zu füllende Volumen 4 vorhanden. Dieses Volumen 4 ist auf der linken Seite von der Einblasöffnung 5 begrenzt, durch welche die in einer Druckluftleitung herantransportierten beleimten Fasern in das Volumen eingeblasen werden. Auf der rechten Seite ist das Pendant zur Einblasöffnung, nämlich die mit einem Sieb 6 verschlossene Ausblasöffnung 7 zu erkennen, durch welche die nicht mehr benötigte Luft abgeleitet oder ggf. sogar abgesaugt werden kann.The exemplary embodiment of a device for carrying out the method according to the invention is illustrated in FIGS. 1 and 2. The press shown has a fixed pressing tool lower part 1 and a pressing tool
Aus Fig. 2 wird deutlich, daß die Presse mit mehreren Ausblasöffnungen versehen sein kann, welche an eine gemeinsame Abluftleitung 8 angeschlossen sind. Die Ausblasöffnungen können in unterschiedlicher Weise dazu genutzt werden, um die Fasern entweder gleichmäßig oder gezielt ungleichmäßig ( zwecks Herstellung unterschiedlicher Dichten im Profilkörper ) in das Volumen einzufüllen. Zu diesem Zweck können sie beispielsweise unterschiedliche Querschnitte aufweisen. Es ist aber auch möglich, die Absaugöffnungen mit Vorrichtungen, wie Klappen, zu versehen, welche die stetige Veränderung des Querschnittes gestatten. Die gleiche Wirkung kann dadurch erzielt werden, daß an den Absaugöffnungen Saugvorrichtungen mit steuerbarem Unterdruck angeschlossen werden.From Fig. 2 it is clear that the press can be provided with several blow-out openings which are connected to a
In Fig. 1 ist auch noch zu erkennen, daß das Preßwerkzeugunterteil 2 mit einer Mehrzahl von Kanälen 9 geringen Querschnitts versehen ist, welche mit der Atmosphäre in Verbindung stehen, aber auch mit Druckluft beaufschlagt werden können. Wenn die Kanäle 9 mit der Atmosphäre in Verbindung stehen, dann verhindern sie eine Vakuumbildung unterhalb des gepreßten Profilkörpers, welche diesen am Lösen aus dem Preßwerkzeugunterteil hindern. Wenn die Kanäle 9 nach dem Preßvorgang mit Druckluft beaufschlagt werden, dann wird der gepreßte Profilkörper angehoben und kann leicht aus der Presse herausgenommen werden.In Fig. 1 it can also be seen that the pressing tool
Claims (7)
- Method of producing profiled bodies from glued or bonded fibers which are either dry or contain only a slight humidity, and are filled into the pressing space of a board pressing tool consisting at least of the upper part (2) of a pressing tool and the lower part (1) of a pressing tool , and are thereafter compressed in the board pressing tool, with the glued (bonded) fibers being blown within an airstream into the closed pressing space which, in its size, corresponds to the fiber bulk factor of the profiled body, with said pressing space having at least one blow-in opening (5) and at least one blow-out opening (7) which is covered with a sieve (6), and with daid glued (bonded) fibers thereafter being compressed in that said upper pressing tool part (2) is moved in direction toward said lower pressing tool part (1),
characterized in that said upper pressing tool part (2) is formed in such a way as to overlap said lower pressing tool part (1) all-around, thus forming said pressing space, and that both said blow-in opening (5) and said blow-out opening (7) are disposed in the side members of said upper pressing tool part (2) as overlapping said lower pressing tool part (1), and that the blowing operation is performed while said upper pressing tool part (2) is placed onto said lower pressing tool part (1). - A method as claimed in claim 1,
characterized in that said glued (bonded) fibers are compressed inside the power press only up to a part of the desired final density so as to obtain a rough pressed block, that said fibers are then removed from said power press and are completely compressed in a second power press to obtain the final density by the application of heat. - A method as claimed in claim 1 and 2,
characterized in that said rough pressed block is provided in said second power press with a position-dependent different density. - A device for carrying out the method as claimed in claim 1 including a power press consisting of a lower pressing tool part (1) and of an upper pressing tool part (2), of a blow-in opening (5) for feeding the mixture of air and glued (bonded) fibers into said pressing space, as well as of a blow-out (outlet) opening (7 ) attached to said pressing space, with said opening (7) being covered with a sieve (6),
characterized in that said upper pressing tool part (2), by forming a pressing space, is designed to overlap said lower pressing tool part (1), and that both said blow-in opening (5) and said blow-out ( outlet ) opening (7) are disposed in the side members of said upper pressing tool part (2) as overlapping said lower pressing tool part (1). - A device as claimed in Claim 4,
characterized in that there are provided several exhaust openings all having different cross-sections. - A device as claimed in Claims 5 and 6,
characterized in that said exhaust openings are designed to have a variable cross-section and/or are acted upon by a variable underpressure ( vacuum ). - A device as claimed in Claims 4 through 6,
characterized in that in the bottom of at least one of said pressing tool parts there are provided small-cross-section channels (9) which are either in connection with the atmosphere or connected to a source of compressed air.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8686110333T DE3681447D1 (en) | 1986-07-26 | 1986-07-26 | METHOD AND DEVICE FOR PRODUCING PROFILE BODIES. |
| AT86110333T ATE67113T1 (en) | 1986-07-26 | 1986-07-26 | METHOD AND DEVICE FOR THE MANUFACTURE OF PROFILE BODY. |
| EP86110333A EP0257106B1 (en) | 1986-07-26 | 1986-07-26 | Method and apparatus for making articles from bonded fibres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP86110333A EP0257106B1 (en) | 1986-07-26 | 1986-07-26 | Method and apparatus for making articles from bonded fibres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0257106A1 EP0257106A1 (en) | 1988-03-02 |
| EP0257106B1 true EP0257106B1 (en) | 1991-09-11 |
Family
ID=8195294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86110333A Expired - Lifetime EP0257106B1 (en) | 1986-07-26 | 1986-07-26 | Method and apparatus for making articles from bonded fibres |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0257106B1 (en) |
| AT (1) | ATE67113T1 (en) |
| DE (1) | DE3681447D1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2700138B1 (en) * | 1993-01-06 | 1995-03-10 | Charles Weisskopf | Process and device for the production of articles by compacting fibers or granules using an air stream and articles thus produced. |
| AT407407B (en) * | 1998-11-03 | 2001-03-26 | Mcguire Sean | METHOD FOR PRODUCING A MOLDED BODY FROM CELLULOSE FIBERS, AND METHOD FOR PRODUCING PAPER OR PLATES FROM CELLULOSE FIBERS |
| CN112757466B (en) * | 2020-12-28 | 2022-06-21 | 苏州础润生态科技有限公司 | Inner and outer die pouring device for assembled water pool and working method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE258633C (en) * | ||||
| DE1213110B (en) * | 1963-12-21 | 1966-03-24 | Arnold Adler Dipl Ing | Method, arrangement and press for pressing large size chip formers |
| DE1210550B (en) * | 1964-01-18 | 1966-02-10 | Werz Furnier Sperrholz | Method and device for the production of deformed parts in several dimensions from shredded organic fibers, e.g. B. wood chips, and a binder |
| FR1492401A (en) * | 1965-08-17 | 1967-08-18 | Basf Ag | Method and device for obtaining molded foam parts |
| FR1542605A (en) * | 1966-07-29 | Werz Furnier Sperrholz | Method for filling molds in press molding and device for carrying out this method | |
| US3664799A (en) * | 1969-11-04 | 1972-05-23 | American Standard Inc | Powder compacting press |
-
1986
- 1986-07-26 DE DE8686110333T patent/DE3681447D1/en not_active Expired - Fee Related
- 1986-07-26 EP EP86110333A patent/EP0257106B1/en not_active Expired - Lifetime
- 1986-07-26 AT AT86110333T patent/ATE67113T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3681447D1 (en) | 1991-10-17 |
| ATE67113T1 (en) | 1991-09-15 |
| EP0257106A1 (en) | 1988-03-02 |
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