DE2344248B2 - PreBpolster for a heating press - Google Patents
PreBpolster for a heating pressInfo
- Publication number
- DE2344248B2 DE2344248B2 DE2344248A DE2344248A DE2344248B2 DE 2344248 B2 DE2344248 B2 DE 2344248B2 DE 2344248 A DE2344248 A DE 2344248A DE 2344248 A DE2344248 A DE 2344248A DE 2344248 B2 DE2344248 B2 DE 2344248B2
- Authority
- DE
- Germany
- Prior art keywords
- press
- press pad
- fleece
- angle
- metal fiber
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims description 5
- 239000000835 fiber Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 11
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002028 premature 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- B27N3/20—Moulding or pressing characterised by using platen-presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/061—Cushion plates
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Description
Die Patentanmeldung P 22 30 220.1-16 betrifft ein Preßpolster für eine Heizpresse zum Aufpressen von mit härtbaren Kunstharzen getränkten Trägerbahnen oder härtbaren Kunststoffolien auf die Oberfläche von Holzwerkstoffplatten, welches Preßpolster zwischen Preßwerkzeug und Preßblech eingelegt ist und als komprimierbares Metallfaservües, welches nach Druckentlastung zumindest annähernd wieder die ursprüngliche Preßpolsterdicke annimmt, ausgebildet istThe patent application P 22 30 220.1-16 relates to a press pad for a heating press for pressing on Carrier sheets impregnated with curable synthetic resins or curable plastic films on the surface of Wood-based panels, which press pad is inserted between the press tool and press plate and as compressible metal fiber fabric, which after pressure relief is at least approximately the same as the original Press pad thickness assumes is formed
Ein derartiges Preßpolster ist aus der US-PS 23 72 114 bekannt, und es geht aus der Druckschrift auch als bekannt hervor, daß das Preßpolster aus einer Mehrzahl von Vlieseinzellagen bestehen kann. Dieses Metallfaservlies-Preßpolster ist allseitig von einem dünnen Blech umgeben, wodurch ein »Atmen« des Preßpolsters bei Druckbelastung und -entlastung nicht möglich ist. Dem nicht zum Stande der Technik gehörenden Gegenstand der Hauptpatentanmeldung liegt als Aufgabe zugrunde, das an sich bekannte Metallfaservlies als Preßpolster so einzusetzen, daß es zwar den Wärmedurchgang von der Heizpresse zum Preßblech unter Druck begünstigt, so daß die Heizpresse auf niedrigere Temperaturen erhitzt werden kann, andererseits aber nach dem öffnen der Presse den Wärmedurchgang wieder so reduziert, daß das Preßblech abkühlt, so daß ein vorzeitiges Aushärten der abgelegten Kunstharzfilme beim erneuten Beschicken vermieden wird. Nach dem Schließen der Presse soll dann die Temperatur des Preßbleches aber wieder schnell an-Such a press pad is known from US-PS 23 72 114, and it goes from the document also known as the fact that the press pad can consist of a plurality of single nonwoven layers. This Metal fiber fleece press pad is surrounded on all sides by a thin sheet of metal, which means that the Press pad is not possible with pressure loading and unloading. The one that does not belong to the state of the art The object of the main patent application is based on the metal fiber fleece known per se to be used as a press pad in such a way that there is indeed heat transfer from the heating press to the press plate favored under pressure so that the heating press can be heated to lower temperatures, on the other hand but after opening the press the heat transfer is reduced again so that the press plate cools down, so that premature hardening of the synthetic resin films which have been deposited is avoided when they are loaded again will. After closing the press, the temperature of the press plate should rise again quickly.
steigen. Die Lösung dieser Aufgabe gelingt gemäß Patentanmeldung P 22 30 220.1-16 dadurch, daß das Metallfaservlies allseitig offen, Luftzu- und -austritt ermöglichend, ausgebildet istrise. This problem is solved according to the patent application P 22 30 220.1-16 in that the metal fiber fleece is open on all sides, allowing air to enter and exit, is trained
Im Rahmen der Aufgabenstellung der Patentanmeldung P 22 30 220.1-16 und in Weiterbildung der Lösung dieser Aufgabe wurde nun gemäß dieser Erfindung gefunden, daß man die Standzeit (Gebrauchsdauer) des Metallfaservlieses wesentlich verbessern kann, wenn im Falle der Verwendung eines mehrlagigen Vlieses die bevorzugte Faserrichtung aller oder einzelner Lagen einen Winkel zueinander bildet.As part of the task of the patent application P 22 30 220.1-16 and in further development of the solution this object has now been found according to this invention that the service life (service life) of the Metal fiber fleece can improve significantly if, in the case of using a multi-layer fleece, the preferred fiber direction of all or individual layers forms an angle to one another.
Dieser Winkel beträgt vorzugsweise 90°. Man kann allerdings auch, je nach Richtung der beanspruchenden Kräfte, andere Winkel vorsehen.This angle is preferably 90 °. However, one can also, depending on the direction of the claim Forces, provide other angles.
Ein Vlies ist zwar eine Wirrlage. Durch die Art der Herstellung gibt es jedoch im Makrobereich eine gewisse bevorzugte Richtung, die durch das Aufwerfen des Vliesmaterials auf ein laufendes Band hervorgerufen wird.A fleece is a random layer. However, due to the way it is manufactured, there is a certain amount in the macro area preferred direction caused by the throwing of the nonwoven material onto a moving belt will.
Der an sich bekannte Aufbau aus mehreren Lagen gewährleistet eine größere Gleichmäßigkeit in der Masseverteilung und eine höhere Festigkeit da aus statistischen Gründen Ungleichmäßigkeiten in den einzelnen Lagen besser ausgeglichen werden.The per se known structure of several layers ensures greater uniformity in the Mass distribution and a higher strength because, for statistical reasons, there are irregularities in the individual Locations are better balanced.
Es ist möglich, ein solches Verbundvlies mit dünnmaschigem Geflecht aus Metall- oder Glasfasern abzudekken und das Geflecht mit dem Vlies, z. B. durch Nadelung oder Steppnähte, zu verbinden. Hierdurch wird eine weitere Erhöhung der Stabilität gewährleistet.It is possible to use such a composite fleece with a thin mesh To cover braid made of metal or glass fibers and the braid with the fleece, z. B. by needling or quilted seams. This ensures a further increase in stability.
Die erfindungsgemäßen Preßpolster sind in den Abb. 1 und 2 dargestellt. Dabei ist in Abb. 1 ein aus drei Lagen von Metallfaservliesen aufgebautes Preßpolster gezeichnet, wobei die einzelnen Lagen mit 1, 2 und 3 bezeichnet sind. Die bevorzugten Faserrichtungen bil den einen Winkel von etwa 90°.The press pads according to the invention are shown in FIGS. One of three is shown in Fig. 1 Pressed padding made up of metal fiber fleeces is drawn, the individual layers with 1, 2 and 3 are designated. The preferred fiber directions bil the an angle of about 90 °.
In Abb. 2 ist ein aus fünf Metallfaservlieslagen bestehendes Preßpolster gezeichnet, wobei die bevorzugten Faserrichtungen im Vlies 4 und 8 parallel verlaufen, wobei jedoch die Hauptfaserrichtung der Mittellage 6In Fig. 2 is one consisting of five metal fiber fleece layers Press pad drawn, with the preferred fiber directions in the fleece 4 and 8 running parallel, however, the main fiber direction of the middle layer 6
mit den Hauptfaserrichtungen der Lagen 5 und 7 einen Winkel von etwa 90° bilden und die Hauptfaserrichtungen der Lagen 5 und 7 ungefähr parallel verlaufen und ihrerseits mit den Lagen 4 und 8 einen Winkel von etwa 45° bilden.form an angle of approximately 90 ° with the main fiber directions of the layers 5 and 7 and the main fiber directions of the layers 5 and 7 run approximately parallel and in turn with the layers 4 and 8 an angle of about Form 45 °.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2344248A DE2344248B2 (en) | 1973-09-01 | 1973-09-01 | PreBpolster for a heating press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2344248A DE2344248B2 (en) | 1973-09-01 | 1973-09-01 | PreBpolster for a heating press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2344248A1 DE2344248A1 (en) | 1975-03-20 |
| DE2344248B2 true DE2344248B2 (en) | 1975-06-26 |
Family
ID=5891420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2344248A Pending DE2344248B2 (en) | 1973-09-01 | 1973-09-01 | PreBpolster for a heating press |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2344248B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE270612T1 (en) | 1999-03-03 | 2004-07-15 | Heimbach Gmbh Thomas Josef | PRESS PAD |
-
1973
- 1973-09-01 DE DE2344248A patent/DE2344248B2/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2344248A1 (en) | 1975-03-20 |
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