DE1137370B - Method and device for producing thin lightweight panels from wood fibers - Google Patents
Method and device for producing thin lightweight panels from wood fibersInfo
- Publication number
- DE1137370B DE1137370B DEH40414A DEH0040414A DE1137370B DE 1137370 B DE1137370 B DE 1137370B DE H40414 A DEH40414 A DE H40414A DE H0040414 A DEH0040414 A DE H0040414A DE 1137370 B DE1137370 B DE 1137370B
- Authority
- DE
- Germany
- Prior art keywords
- wood fibers
- producing thin
- lightweight panels
- thin lightweight
- needles
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 229920002522 Wood fibre Polymers 0.000 title claims description 9
- 239000002025 wood fiber Substances 0.000 title claims description 9
- 239000010802 sludge Substances 0.000 claims description 5
- 208000032544 Cicatrix Diseases 0.000 claims description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 231100000241 scar Toxicity 0.000 claims description 4
- 230000037387 scars Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000001089 mineralizing effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
-
- 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
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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)
- Paper (AREA)
Description
Durch Patent 1117 026 ist ein Verfahren zur Herstellung dünner Leichtbauplatten aus Holzfasern bekanntgeworden, die mit Magnesiumsulfat, Magnesiumoxyd und einem Schäumer gebunden sind. Das Verfahren hat die Besonderheit, daß im Defibrator hergestellte Holzwirrfasern mit den Bindemitteln und dem Schaumstoff zu einer feuchtkrümeligen Masse gemischt, dann unter Zusatz eines Stabilisators aus Kunststoffdispersion mechanisch aufgeschäumt, zu großen Platten ausgeformt und bei Temperaturen bis zu 160° C getrocknet werden.By patent 1117 026 is a method for Manufacture of thin lightweight panels made of wood fibers become known, which with magnesium sulfate, Magnesium oxide and a foamer are bound. The peculiarity of the procedure is that Tangled wood fibers produced in the defibrator are mixed with the binding agents and the foam to form a crumbly moist mass, then with the addition a stabilizer made of plastic dispersion, mechanically foamed, shaped into large sheets and dried at temperatures up to 160 ° C.
Die Erfindung betrifft ein Verfahren, diese dünnen mineralisierten Holzfaserplatten zu Schallschluckplatten weiterzuentwickeln und in der Verbindung damit die Feuerbeständigkeit wesentlich zu erhöhen. Das neue Verfahren geht von den bekannten Arbeitsweisen aus, die Oberfläche weicher Baustoffmassen durch Nadeln unregelmäßig aufzureißen. Hierfür haben sich im besonderen umlaufende Nadelbretter bewährt.The invention relates to a method for developing these thin mineralized wood fiber boards into sound-absorbing boards and in the connection thus significantly increasing the fire resistance. The new procedure is based on the familiar Working methods consist of tearing open the surface of soft building materials irregularly with needles. Circumferential needle boards have proven particularly useful for this.
Die Erfindung besteht nun in einem solchen Verfahren, die durch Nadeln aufgerissenen Narben in der zwar ausgeformten, jedoch noch breiigen Platte zweckmäßig gleich während des Aufreißens durch Einführung eines Feinschlammes nachzumineralisieren. Wird der Feinschlamm in die Narben eingespritzt, so dringt er besonders tief in die Leichtbauplatte ein. Die an sich bekannte künstliche Narbung wirkt bei Holzfaserwirrstoffen kräftiger als bei der Anwendung auf körnige oder breiige Substanzstoffe. Zu dieser Nachmineralisierung braucht nur eine geringe Menge Mineralfeinschlamm von der Oberfläche her eingespritzt zu werden. Die ausgeformte, nasse, breiige Stoffbahn, welche nach dem Hauptpatent hergestellt wird, zeigt zunächst eine geschlossene Oberfläche.The invention now consists in such a method, the scars torn by needles in the molded, but still pulpy plate expediently right through during the tearing Introduction of a fine sludge to re-mineralize. If the fine sludge is injected into the scars, so it penetrates particularly deeply into the lightweight panel. The well-known artificial grain has a stronger effect on wood fiber tangles than when used on granular or pulpy substances. This re-mineralization only needs a small amount of fine mineral sludge from the surface to be injected forth. The formed, wet, pulpy web of material, which according to the main patent is produced, initially shows a closed surface.
Nach der Erfindung wird diese Stoßbahn durch ein Nagelbrett, das sich quer zur Bewegungsrichtung der Bahn hin- und herbewegt, aufgerissen. Zum Antrieb dieses Brettes dient in einfachster Weise eine Exzenterscheibe mit stufenlos regelbarer Geschwindigkeit. Solche Nagelbretter sind auch in der Textiltechnik bekannt zum Aufrauhen von Geweben. Während dort jedoch nur rein oberflächlich eine Geweberauhigkeit erzielt wird, werden nach der Erfindung tiefgehende Narben und Risse, welche beim Erstarren bestehenbleiben, in dem Gesamtgefüge der Wirrfasern hervorgerufen. Durch eine Veränderung der Bewegungsgeschwindigkeit, der Nagelabstände und gegebenen- falls eine Tiefenstaffelung der Nägel läßt sich das Aufreißbild der Plattenoberfläche mit einfachen Verfahren und VorrichtungAccording to the invention, this butt path is through a nail board, which is transverse to the direction of movement Web moved back and forth, torn open. An eccentric disk is used to drive this board in the simplest possible way with infinitely variable speed. Such nail boards are also used in textile technology known for roughening fabrics. While there, however, there is only a superficial roughness of the tissue is achieved, according to the invention, deep scars and cracks which remain when solidifying, caused in the overall structure of the random fibers. By changing the speed of movement, the nail spacing and given if the nails are staggered in depth, the surface of the plate can be easily drawn Method and device
zum Herstellen dünner Leichtbauplattenfor the production of thin lightweight panels
aus Holzfasernmade of wood fiber
Zusatz zum Patent 1117 026Addition to patent 1117 026
Anmelder:Applicant:
Fritz Homann A. G., Holzfaserplattenwerke, Dissen (Teutoburger Wald)Fritz Homann A. G., Wood fiber board works, Dissen (Teutoburg Forest)
Dr. Klaus-Diether Wilke, Herzberg (Harz),
ist als Erfinder genannt wordenDr. Klaus-Diether Wilke, Herzberg (Harz),
has been named as the inventor
Mitteln in weiten Grenzen verändern. Hierzu ist praktisch nur notwendig, die Exzentrizität und gegebenenfalls die Umdrehungszahl der Exzenterscheibe zu ändern, an welcher das Brett befestigt ist. Soweit die aufgerissenen Wirrfasern sich in die Höhe erheben und über die ursprünglich geformte Plattenoberfläche hinausragen, genügt eine leichte, biegsam in der Bewegungsrichtung der Bahn schleppende Blechlippe, um die ursprüngliche Plattenoberfläche wiederherzustellen. Diese Schlepplippe kann ferner dazu benutzt werden, um Furchen, die zu groß geraten sind, wieder etwas zuzuziehen. Die Hinterkante der Blechlippe wird durch einen Bügel, z. B. mittels Spannschrauben, derart stabilisiert, daß eine absolut gleichmäßige Plattendicke über die ganze Bahn gesichert ist. Das Ausmaß des Glättungseffektes läßt sich ferner durch einen unterschiedlichen Anstellwinkel der Blechlippe und durch Veränderung des Andruckes auf die Bahn des Formbreies weitgehend beeinflussen.Change means within wide limits. For this, all that is practically necessary is the eccentricity and, if necessary change the number of revolutions of the eccentric disc to which the board is attached. As far as the torn tangled fibers rise upwards and over the originally formed board surface protrude, a light, flexible sheet metal lip, dragging in the direction of movement of the web, is sufficient, to restore the original plate surface. This drag lip can also be used in order to recreate furrows that have become too large. The rear edge of the sheet metal lip is by a bracket, z. B. by means of clamping screws, stabilized in such a way that an absolutely uniform Panel thickness is secured over the entire length. The extent of the smoothing effect can also be determined a different angle of incidence of the sheet metal lip and by changing the pressure on the web largely influence the mold slurry.
Eine besonders einfache Form der Mineralisierung wird erreicht, wenn jede Reißnadel mit einer Spritzdüse zusammenwirkt oder aber, wenn die Reißnadeln hohle Injektornadeln für den mineralisierenden Feinschlamm sind.A particularly simple form of mineralization is achieved when each scriber is equipped with a spray nozzle interacts or if the scriber needles hollow injector needles for the mineralizing fine sludge are.
Nach der Erfindung gelingt es bei einer für die Praxis völlig ausreichenden Festigkeit, die Rohdichte der Platte, welche nach der Haupterfindung etwa 400 mg/cm3 ist, etwa auf 300 mg/cm3 zu senken. Im ganzen wird also eine ungemein leichte, feste PlatteAccording to the invention, with a strength that is completely sufficient for practical use, it is possible to lower the bulk density of the board, which according to the main invention is about 400 mg / cm 3 , to about 300 mg / cm 3. So on the whole it will be an extremely light, solid record
209 658/251209 658/251
mit hoher Schallschluckwirkung erreicht, die nicht brennbar und feuerbeständig mineralisiert ist.achieved with a high sound-absorbing effect, which is non-flammable and fire-resistant mineralized.
Claims (3)
USA.-Patentschriften Nr. 2 778 086, 1854788.Considered publications:
U.S. Patent Nos. 2,778,086, 1854788.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH40414A DE1137370B (en) | 1959-05-12 | 1960-09-13 | Method and device for producing thin lightweight panels from wood fibers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH36371A DE1117026B (en) | 1959-05-12 | 1959-05-12 | Process for the production of thin lightweight panels |
| DEH40414A DE1137370B (en) | 1959-05-12 | 1960-09-13 | Method and device for producing thin lightweight panels from wood fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1137370B true DE1137370B (en) | 1962-09-27 |
Family
ID=25979563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEH40414A Pending DE1137370B (en) | 1959-05-12 | 1960-09-13 | Method and device for producing thin lightweight panels from wood fibers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1137370B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1854788A (en) * | 1930-01-22 | 1932-04-19 | Humbert M Fenati | Apparatus for making tapestried brick |
| US2778086A (en) * | 1953-02-20 | 1957-01-22 | Alliance Clay Product Company | Apparatus for scoring column from which bricks are made |
-
1960
- 1960-09-13 DE DEH40414A patent/DE1137370B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1854788A (en) * | 1930-01-22 | 1932-04-19 | Humbert M Fenati | Apparatus for making tapestried brick |
| US2778086A (en) * | 1953-02-20 | 1957-01-22 | Alliance Clay Product Company | Apparatus for scoring column from which bricks are made |
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