CH242617A

CH242617A - Process for the production of moldings.

Info

Publication number: CH242617A
Authority: CH
Inventors: Josef Waespi Ludwig
Original assignee: Josef Waespi Ludwig
Priority date: 1944-09-27
Filing date: 1944-09-27
Publication date: 1946-05-31

Description

  

      Verfahren        zur        Erzeugung    von     Formkörpern.       Gegenstand vorliegender     Erfindung        ist          ein    Verfahren zur Erzeugung von Formkör  pern     aus    einer verformbaren, mit     Bindemittel     durchsetzten Masse aus natürlichem,     zellu-          losehaltigem    Fasermaterial, wie z. B. Holz  in     irgendeiner    Aufteilung, das heisst als Holz  draht,     Holzguss,    Holzband, Holzflocken, Holz  flaum, Holzspäne, Sägespäne usw., Torf usw.  



  Nach dem     erfindungsgemässen    Verfahren  zerstört man mechanisch vor dem Zusetzen  des     Bindemittels    das die Einzelfasern des  Materials quer verbindende Zellgewebe     und     verformt dann das mit dem     Bindemittel     durchsetzte     Fasermaterial    unter     Druck.     



  Die mechanische     Zerstörung    des Zell  gewebes     kann    durch     Walzen,    Pressen, Stamp  fen,     Klopfen.    Schlagen, Stossen, Hämmern,       Quetschen        usw.    erfolgen.

   Diese     mechanische          Zerstörung    des Zellgewebes hat zur Folge,  dass das Bindemittel leichter     in    das Holz ein  dringen kann, wodurch die Formbeständig  keit der geformten Körper erzielt wird     und     die Homogenität dieser Körper weitgehend  verbessert     wird.        Ausserdem    wird bei dieser    mechanischen     Behandlung    das Fasermaterial  verdichtet     und    dadurch die Festigkeit der  aus dieser Masse geformten Körper erhöht.  



  Als     Bindemittel    können Kunstharze,  natürliche Harze oder     mineralische    Stoffe  wie Zement,     Kalk,    Gips, usw. verwendet  werden. Je nach dem verwendeten Binde  mittel erfolgt die     Verformung    des damit  durchsetzten Fasermaterials heiss (z. B. zum  Härten der Kunstharze) oder kalt.  



  Dem Bindemittel oder dem mit dem Binde  mittel durchsetzten Material können Füll  stoffe     wie        Steinmehl,    z. B. Schiefer- oder  Quarzmehl, gemahlener Ton usw.     beigefügt     .werden.  



  Als aus der Masse hergestellte Form  körper können Bauplatten, und zwar Platten  für Boden- und Wandbeläge, Treppenstufen,       Fensterrahmen,    Türen, Möbel     usw..erwähnt     werden.



      Process for the production of moldings. The present invention is a method for the production of Formkör pern from a deformable, interspersed with binder mass of natural, cellulose-containing fiber material, such as. B. wood in any distribution, i.e. as wood wire, wood casting, wood tape, wood flakes, wood down, wood shavings, sawdust, etc., peat, etc.



  According to the method according to the invention, the cell tissue that transversely connects the individual fibers of the material is mechanically destroyed before the addition of the binder, and the fiber material interspersed with the binder is then deformed under pressure.



  The mechanical destruction of the cell tissue can be caused by rolling, pressing, tamping or knocking. Hitting, pushing, hammering, squeezing, etc.

   This mechanical destruction of the cell tissue has the consequence that the binding agent can more easily penetrate into the wood, whereby the dimensional stability of the shaped bodies is achieved and the homogeneity of these bodies is largely improved. In addition, this mechanical treatment compresses the fiber material and thereby increases the strength of the bodies formed from this mass.



  Synthetic resins, natural resins or mineral substances such as cement, lime, gypsum, etc. can be used as binding agents. Depending on the binding agent used, the deformation of the fiber material interspersed with it takes place hot (e.g. to harden the synthetic resins) or cold.



  The binding agent or the material interspersed with the binding agent can fill materials such as rock powder, eg. B. slate or quartz flour, ground clay, etc. are added.



  As a molded body made from the mass, building panels, namely panels for floor and wall coverings, stairs, window frames, doors, furniture, etc. can be mentioned.

Claims

PATENT CLAIM: A process for the production of molded bodies from a deformable mass of natural, cellulosic fiber material interspersed with binding agent, characterized in that the cell tissue that crosses the individual fibers of the material is mechanically destroyed before the addition of the binding agent, and then that with the binding agent interspersed fiber material deformed under pressure. SUBClaims: 1. Method according to patent claim, characterized in that the mass is hot deformed. 2.

Method according to .. Patent claim, characterized in that the mass is cold-formed. 3. The method according to claim, characterized in that the mechanical destruction takes place by rolling. 4. The method according to claim, characterized in that the mechanical destruction takes place by pressing. 5. The method according to claim, characterized in that the mechanical destruction takes place by tamping. 6. The method according to claim, characterized in that the mechanical destruction takes place by hitting.

7. The method according to claim, characterized in that wood is used as the fiber material. B. The method according to claim, characterized in that wood wire is used as the fiber material. 9. The method according to claim, characterized in that wood tape is used as the fiber material. 10. The method according to claim, characterized in that wood flakes are used as the fiber material. 11. The method according to claim, characterized in that wood fluff is used as the fiber material. 12. The method according to claim, characterized in that wood chips are used as fiber material. 13th

Method according to patent claim, characterized in that sawdust is used as the fiber material.