DE368493C - Process for compacting wood - Google Patents

Process for compacting wood

Info

Publication number
DE368493C
DE368493C DEH82140D DEH0082140D DE368493C DE 368493 C DE368493 C DE 368493C DE H82140 D DEH82140 D DE H82140D DE H0082140 D DEH0082140 D DE H0082140D DE 368493 C DE368493 C DE 368493C
Authority
DE
Germany
Prior art keywords
wood
pressure
compacting
water
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.)
Expired
Application number
DEH82140D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holzveredelung G M B H
Original Assignee
Holzveredelung G M B H
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Holzveredelung G M B H filed Critical Holzveredelung G M B H
Priority to DEH82140D priority Critical patent/DE368493C/en
Priority to FR539312D priority patent/FR539312A/en
Priority to GB21963/21A priority patent/GB168064A/en
Application granted granted Critical
Publication of DE368493C publication Critical patent/DE368493C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

Verfahren zum verdichten von Holz. Es sind Verfahren bekannt, um Holz durch starken Druck, insbesondere auch unter Erwärmung, zu verdichten. Die Verfahren ergehen teilweise Hölzer, die sich durch hohes spezifisches Gewicht. große Härte und .gute Polierfähigkeit auszeichnen, sie sind aber alle nicht widerstandsfähi- gegen längere Beeinflussung durch Wasser. Sie quellen mehr oder minder wieder auf. Ganz besonders tritt dieser Übelstand hei harzarmen Hölzern auf. Bei harzhaltigen Hölzern hat man bereits versucht, ihn dadurch zu l;eseitigen, daß man diese liis zum Weichwerden des Harzes erwärmte, um dadurch eine Verklebung des Holzinnern herbeizuführen. Ein voller Erfolg wurde aber hierbei nicht erzielt, da das Harz im Holzinnern zu ungleichmäßig verteilt ist.Process for compacting wood. Methods are known to cut wood to be compressed by strong pressure, especially when heated. The proceedings sometimes wood that is characterized by a high specific weight endures. great hardness and .good polishability, but they are all not resistant. against prolonged influence by water. They swell up more or less again. This disadvantage occurs especially in woods that are poor in resin. With resinous Attempts have already been made to turn it into a wooden one by liis this heated to soften the resin, thereby causing the inside of the wood to stick. A complete success was not achieved here, because the resin inside the wood closes is unevenly distributed.

Es wurde nun -eftinden, daß sich das C)uellen ain sicherten vermeiden läßt, wenn die Hiilzer vor oder während der Pressung derart erhitzt werden. date sich aus dein Holze bzw. dein harzhaltigen Zellinhalt teerartige Destillationsprodükte Bilden, die die Zellwände miteinander verkleben und die leim TErkalteri wasserunlöslich erhärten. Dieses Verfahren ist gleich gut hei harzhaltigen wie hei harzarmen Hölzern anwendbar. Zur Erzielung möglichst großer und gleichmäßig verteilter Teermengen muß ;das Holz in feuchtein Zustand unter Luftabschluß langsai.i steigend erwärmt werden. Der notwendige Feuchtigkeitsgehalt und dieTemperaturen sind bei verschiedenen Holzarten sehr verschieden. Für Rüsternholz z. B. genügt ein ' Wassergehalt von etwa- 25 Prozent und 24stündige Erwärmung auf 75', um bei mehrstündigem Druck von 300 -his :j[oo Atmosphären ein hornartihes Produkt zu erzielen, das äußerst widerstandsfähig gegen Wasser ist. Das Verfahren ist auch ohne Druck anwendbar, benötigt al:er dann längere Erwärmung unil .höhere Temperaturen. und ergibt Produkte von wesentlich geringerer Homogenität.It has now been found that c) ulling can be avoided if the sleeves are heated in this way before or during the pressing. date tar-like distillation products form from your wood or your resinous cell content, which glue the cell walls together and harden the glue insoluble in water. This method can be used equally well with resinous and resin-poor woods. In order to achieve the highest possible and evenly distributed amounts of tar, the moist wood must be heated slowly and gradually in the absence of air. The necessary moisture content and temperatures are very different for different types of wood. For armor wood z. For example, a 'water content of about 25 percent and 24 hours of heating to 75' is sufficient to achieve a horn-like product which is extremely resistant to water at a pressure of 300 -his: j [oo atmospheres for several hours. The process can also be used without pressure, as it then requires longer heating and higher temperatures. and gives products of much less homogeneity.

Claims (1)

PATENTANSPRUCH: Verfahren zum Verdichten von Holz unter Anwendung von Hitze und Druck, dadurch gekennzeichnet, daß man das Holz. vor oder während des Zusatninenpressens so hoch erhitzt, daß sich iin Holz durch Zersetzung des Holzes öder der darin enthaltenen Harze wasserunlöslich erhärtende Stoffe bilden, wobei der Druck zumeist in der -Faserrichtung, senkrecht zur Faserrichtung oder al:er in mehreren Richtun- gen gleichzeitig in Anwendung kommt. PATENT CLAIM: Process for compacting wood using heat and pressure, characterized in that the wood. Heated before or during the pressing process to such an extent that water-insoluble hardening substances are formed in wood due to the decomposition of the wood or the resins it contains, the pressure mostly in the direction of the fiber, perpendicular to the direction of the fiber or al: er in several directions at the same time Application comes.
DEH82140D 1920-08-18 1920-08-18 Process for compacting wood Expired DE368493C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEH82140D DE368493C (en) 1920-08-18 1920-08-18 Process for compacting wood
FR539312D FR539312A (en) 1920-08-18 1921-08-12 Compressed wood preparation process
GB21963/21A GB168064A (en) 1920-08-18 1921-08-18 An improved process for hardening and waterproofing wood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH82140D DE368493C (en) 1920-08-18 1920-08-18 Process for compacting wood

Publications (1)

Publication Number Publication Date
DE368493C true DE368493C (en) 1923-02-05

Family

ID=27634644

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH82140D Expired DE368493C (en) 1920-08-18 1920-08-18 Process for compacting wood

Country Status (3)

Country Link
DE (1) DE368493C (en)
FR (1) FR539312A (en)
GB (1) GB168064A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556181A1 (en) * 1983-12-13 1985-06-14 Lemierre Gilles Ets Construction of chopping boards in compressed vertical-grain wood and chopping boards in compressed horizontal-grain wood
JP2009506086A (en) * 2005-08-31 2009-02-12 ノバルティス アクチエンゲゼルシャフト Organic compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556181A1 (en) * 1983-12-13 1985-06-14 Lemierre Gilles Ets Construction of chopping boards in compressed vertical-grain wood and chopping boards in compressed horizontal-grain wood
JP2009506086A (en) * 2005-08-31 2009-02-12 ノバルティス アクチエンゲゼルシャフト Organic compounds

Also Published As

Publication number Publication date
FR539312A (en) 1922-06-24
GB168064A (en) 1923-01-18

Similar Documents

Publication Publication Date Title
DE368493C (en) Process for compacting wood
DE546104C (en) Process for the production of sulphite pulp
DE8910860U1 (en) Coffin for burial or cremation
DE946479C (en) Process for producing soft, pliable wood
DE569555C (en) Process for molding objects from synthetic resin
DE545044C (en) Musical instrument
DE817523C (en) Manufacture of swellable wooden parts
DE437533C (en) Process for the production of condensation products
DE358726C (en) Process for compacting wood
AT155499B (en) Armor made of fiber.
CH98124A (en) Process for compacting wood.
DE426993C (en) Insulating material with great electrical and mechanical strength
DE451306C (en) Process for the production of cans, in particular pipe junction boxes and. Like. Made of tar soaked paper or roofing felt
DE445385C (en) Process for the production of artificial skins
DE388986C (en) Process for the production of wood imitation
DE514292C (en) Process for the production of curved resonance bodies
DE947954C (en) Projectile made of synthetic resin molding compound for practice ammunition and process for the production of the same
DE968825C (en) Process for the production of a composite panel with high mechanical resistance
AT200341B (en) Artificial wood mass, in particular for pencil cases and processes for their manufacture
DE427911C (en) Process for the production of wooden objects
DE508062C (en) Filling bodies for filling washing towers, reaction rooms and fractionating columns or the like.
AT102949B (en) Process for the manufacture or production of an artificial mass.
DE849989C (en) Process for preventing damage to cellulose hydrate structures when exposed to prolonged heating
DE549886C (en) Process for the surface refinement of moldings made from hardened phenol-formaldehyde condensation products
DE560604C (en) Process for the production of paints from phenol-formaldehyde condensation products