EP1002630A1 - Holzbehandlungsverfahren - Google Patents
Holzbehandlungsverfahren Download PDFInfo
- Publication number
- EP1002630A1 EP1002630A1 EP99122192A EP99122192A EP1002630A1 EP 1002630 A1 EP1002630 A1 EP 1002630A1 EP 99122192 A EP99122192 A EP 99122192A EP 99122192 A EP99122192 A EP 99122192A EP 1002630 A1 EP1002630 A1 EP 1002630A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- wood
- wood treatment
- treatment
- thermal conversion
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0207—Pretreatment of wood before impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/44—Tar; Mineral oil
- B27K3/48—Mineral oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Definitions
- the invention relates to a wood treatment process in which lignocellulose-containing Materials are immersed in hot oil for a specified amount of time.
- a wood treatment process of the above type is the subject of DE 1 000 592. Das The impregnation process described in this document is used to remove oil or wood as quickly as possible other impregnating agents to change the properties of the wood Use of high frequency is said to soak at a temperature of the oil bath of 200 ° C in a few minutes. Resistance can be achieved by such a process only increase compared to wood-destroying fungi, provided that the biocides corresponding to the oil Adds funds.
- This type of heat treatment is disadvantageous however, in particular that at the required high temperatures (160-260 ° C) in a gas atmosphere due to the relatively poor heat transfer of gases and sensitivity of the entire remuneration process often an inhomogeneous remuneration with partial reduced resistance to wood-destroying fungi is achieved.
- Boiler pressure impregnation is particularly widespread as a wood preservation process.
- the Pressure impregnation has proven to be a very effective wood preservation process, however there are increasing concerns about the use of solutions containing heavy metals for reasons of environmental protection, because it cannot be excluded that these substances can be washed out of the wood over time and thereby into the ground and in reach the groundwater. There may be a hazard when performing the procedure of the persons entrusted with it and cause environmental damage from waste water.
- Wood preservation processes of the above type are recommended for wood products, that are exposed to the weather, for example in wooden buildings, fences or outdoors banks to be set up.
- Impregnation of tar oils practiced e.g. DE 4112643
- Heat treatments also for additional hardening of modified vegetable oils in impregnated wood e.g. WO 96/38275
- these procedures are only applicable to easily soakable types of wood applicable; types of wood that are difficult to soak cannot be compensated.
- the invention is based on the problem of a wood treatment method at the outset to develop the type mentioned, which leads to the highest possible, uniform protective effect of the material over the entire cross-section, but not for health reasons or requires substances of concern for environmental protection reasons, advantageous properties of the wood changed as little as possible and which with a the simplest possible system can be carried out.
- the method according to the invention occurs exactly as in the thermal treatment under protective gas to a preservative effect, without this for reasons of Environmentally harmful wood preservatives must be used. Because as a heat transfer medium however hot oil is used instead of protective gas, can be carried out during the implementation of the method work with relatively simple facilities, so that even smaller companies can apply the method according to the invention. Unlike other wood preservation processes, whose protective effect is based on impregnation with various substances, can also use this process to process impregnable, lignocellulosic materials such as. Spruce, poplar or bamboo due to the thermal transformation over the whole Cross-section can be coated homogeneously since no substances are introduced into the material Need to become.
- the protective effect is achieved by thermal conversion of the lignocellulose-containing Substance caused, the oil serves as a heat exchanger and shields that to be remunerated Material before exposure to oxygen. Escaping gases prevent penetration of the oil during the thermal treatment, e.g. just a few millimeters of wood oil-soaked and can be planed off so that oil-free tempered wood products are manufactured If necessary, easily soakable types of wood such as Pine sapwood be impregnated by cooling the oil after the thermal treatment.
- the treatment according to the invention is very homogeneous in oil and additionally for increased resistance to wood-destroying fungi, there is high dimensional stability of the wood.
- the necessary heating of the oil is usually possible for woodworking companies without significant additional costs, since waste wood is often generated in such companies, which can be burned to generate the required heat.
- the heated oil can be pumped out at the end of the treatment, as a result of which the thermal energy stored in the oil can be quickly transferred to other reactor vessels with little energy loss.
- the high oil temperatures of 180-260 ° C do not lead to any crack formation when in contact with moist lignocellulose-containing products. For example, freshly sawn, large-sized spruce scantlings with the dimensions 100x100x1350 mm 3 were thermally converted in hot rapeseed oil over the entire cross-section without cracks in an oil bath.
- the method according to the invention has so far been tested in practice in the case of pine and spruce wood, with improved dimensional stability and increased resistance to wood-destroying fungi being found in laboratory tests.
- a few hours are usually sufficient for the treatment; however, the remuneration period depends on the material moisture and the dimensions and can be several days if the values are high.
- a treatment time of 4.5 hours on samples with the dimensions 50x25x15 mm 3 and an initial wood moisture of 6% was tested and found to be sufficient.
- Fresh, untreated pine ( Pinus sylvestris L.) and spruce ( Picea abies L. Karst.) Were cut to the dimensions given in Table 1.
- the samples were heated with a wood moisture content of 6% at three temperatures (180 ° C, 200 ° C and 220 ° C) without pressure in an oil bath made of pressed, refined linseed oil with exclusion of oxygen. After reaching the desired temperature, the wood samples were immersed in the hot oil for 4.5 hours. The samples cooled in the oil bath for 15 minutes. Comparative samples were also treated in the drying cabinet at appropriate temperatures in an air atmosphere for 4.5 hours (no protection claim is made for the treatment in air).
- Mass change The mass increase WPG (Weight Percent Gain) of the oil-heat-treated samples was 50-70% (Table 2).
- the heat-treated samples in an air atmosphere showed mass losses depending on the treatment temperature of up to 10%. Since the oil content caused a mass increase, a possible loss of wood substance as a result of the oil heat treatment could not be determined exactly.
- ASE improvement of samples treated at 220 ° C was of a similar order of magnitude for both types of treatment, around 40% (Table 4). The degree of improvement was dependent on the relative humidity. The ASE decreased with increasing humidity, whereby samples treated with higher temperatures showed smaller differences than samples treated with lower temperatures.
- lignocellulose-containing material treated by the process according to the invention has increased dimensional stability, paint on the wood surface is better than untreated material.
- the lignocellulose-containing material treated by the process according to the invention has due to the oil loading in the later processing compared to the previously known Processed material has the advantage, among other things, that it is easier to machine edit and nails can be driven into it more easily. On top of that prevented by the oil from the formation of health-threatening fine dust or is at least greatly reduced.
- the oil loading in the process according to the invention easily adapted to the respective intended use of the products and for example for wood products to be brought into the ground are chosen higher than for those that are only exposed to weathering without earth contact.
- Another advantage of the method according to the invention is that the oil after Treatment is absorbed very quickly, so that a few minutes after the treatment results in a dry surface of the wooden parts.
- the resin stains that often occur during heat treatment in gas atmospheres on the Wood surface are avoided in the treatment according to the invention in an oil bath, because the leaking resin is evenly distributed in the oil.
- Linseed oil and rapeseed oil have been tried out in practice, with comparably good protective effects let achieve.
- An undesirable embrittlement of the lignocellulose-containing material can be reduced if the heat treatment is carried out in an oil bath in the absence of oxygen.
- the oil can also function as a surface coating agent take over when the liquid bath after heat treatment cooled with the material in it and then in the room climate air-conditioned and then heated to 60 to 180 ° C. By this cooling and Subsequent heating creates a closed, hardened surface on wood Oil film. This also means that the brown color created by the oil can be achieved the surface is more permanent, while otherwise oiled wood surfaces in the Nature quickly fades.
- the oil has an initial temperature of at least 180 ° C.
- fast energy-saving compensation is possible without causing cracking on the wood surface of materials containing lignocellulose, also with moisture content comes about fiber saturation and larger dimensions.
Abstract
Description
Abmessungen der Proben | ||||
Art der Prüfung | Rißbildung/ Oberfläche/ Massen | Dimensionsveränderung/ ASE | Biege E-Modul/ Bruch-Schlagarbeit | Resistenz gegenüber C. puteana |
Holzart | Kiefernsplint | Kiefernsplint | Kiefernsplint | Kiefernsplint Fichte |
[mm3] | 40x70x100 | 20x20x10 | 10x10x150 | 15x25x50 |
Massenveränderung durch die Behandlung [%] | ||||||
180°C Öl | 180°C Luft | 200°C Öl | 200°C Luft | 220°C Öl | 220°C Luft | |
Kiefer | 51,28 | -1,94 | 40,87 | -2,93 | 42,14 | -8,46 |
Fichte | 18,00 | -1,99 | 12,42 | -2,86 | 9,97 | -8,24 |
Dimensionsveränderungen durch die Behandlung [%] | ||||||
180°C Öl | 180°C Luft | 200°C Öl | 200°C Luft | 220°C Öl | 220°C Luft | |
rad | 0,04 | -0,07 | -0,43 | -0,62 | -1,14 | -1,89 |
tan | -0,20 | -0,29 | -0,86 | -0,74 | -1,63 | -2,76 |
ASE [%] | ||||||
180°C Öl | 180°C Luft | 200°C Öl | 200°C Luft | 220°C Öl | 220°C Luft | |
ASE 20/35 | 29 | 41 | 43 | 37 | 44 | 46 |
ASE 20/65 | 21 | 27 | 35 | 28 | 40 | 41 |
ASE 20/85 | 19 | 22 | 31 | 27 | 38 | 40 |
Biege-E-Modul N[/mm 2 ] | ||||||
180°C Öl | 180°C Luft | 200°C Öl | 200°C Luft | 220°C Öl | 220°C Luft | Kontrollen |
10259 | 10029 | 11002 | 9801 | 10162 | 9445 | 9986 |
Bruchschlagarbeit [%] | ||||||
180°C Öl | 180°C Luft | 200°C Öl | 200°C Luft | 220°C-Öl | 220° C Luft | Kontrollen |
82,45 | 62,89 | 59,8 | 50,84 | 50,84 | 37,02 | 100,00 |
Masseverluste nach 19 wöchiger Exposition hitzebehandelter Proben nach DIN EN 113 (Pilz: Coniophora puteana) | ||||||||
Öl-Hitzebehandlung | Luft-Hitzebehandlung | |||||||
Kiefernsplint | Fichte | Kiefernsplint | Fichte | |||||
Behandlung | [g] | [%] | [g] | [%] | [g] | [%] | [g] | [%] |
180°C | 1,1 | 13,0 | 1,2 | 15,0 | 2,3 | 25,0 | 2,5 | 31,2 |
200°C | 0,1 | 1,9 | 1,1 | 13,1 | 1,0 | 15,8 | 2,2 | 26,7 |
220°C | 0,1 | 2,0 | 0,0 | 0,0 | 0,9 | 11,0 | 0,4 | 5,5 |
Claims (7)
- Holzbehandlungsverfahren, bei welchem lignocellulosehaltige Materialien eine festgelegte Zeitdauer in heißem Öl eingetaucht werden, dadurch gekennzeichnet, dass zur kontrollierten, thermischen Umwandlung die Zeitdauer der Ölbehandlung mehrere Stunden und die Temperatur des Ölbades 180°C bis 260° beträgt.
- Holzbehandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass die lignocellulosehaltige Materialien, nach der thermischen Umwandlung mit dem durch die thermische Umwandlung veränderten Öl imprägniert werden.
- Holzbehandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Öl eine Anfangstemperatur von mindestens 180°C hat.
- Holzbehandlungsverfahren nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, dass als Öl ein Pflanzenöl verwendet wird.
- Holzbehandlungsverfahren nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die thermische Umwandlung in einem Ölbad unter Ausschluss von Sauerstoff erfolgt.
- Holzbehandlungsverfahren nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die thermische Umwandlung bei Drücken von 2 bar bis 14 bar erfolgt.
- Holzbehandlungsverfahren nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Flüssigkeitsbad nach Abschluss der thermischen Umwandlung abgekühlt wird, die dann mit thermisch verändertem Öl imprägnierten Proben im Raumklima klimatisiert und anschließend auf 60 bis 180°C bis zur Bildung eines ausgehärteten Ölfilmes in Luftatmosphäre erwärmt werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19852827 | 1998-11-17 | ||
DE19852827A DE19852827A1 (de) | 1998-11-17 | 1998-11-17 | Holzschutzverfahren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1002630A1 true EP1002630A1 (de) | 2000-05-24 |
EP1002630B1 EP1002630B1 (de) | 2004-01-28 |
Family
ID=7887976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99122192A Expired - Lifetime EP1002630B1 (de) | 1998-11-17 | 1999-11-06 | Holzbehandlungsverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US6217939B1 (de) |
EP (1) | EP1002630B1 (de) |
AT (1) | ATE258486T1 (de) |
CA (1) | CA2289867C (de) |
DE (2) | DE19852827A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2199013A1 (es) * | 2001-03-13 | 2004-02-01 | Rodilla Carlos A Martinez | Procedimiento para el tratamiento de la madera, corcho linolium y hormigon. |
DE102009047137A1 (de) | 2009-11-25 | 2011-05-26 | Institut Für Holztechnologie Dresden Gemeinnützige Gmbh | Verfahren zur thermischen Modifizierung oder Vergütung von Holz und Holzprodukten |
DE102015013450A1 (de) | 2015-10-16 | 2016-04-14 | Daimler Ag | Verfahren zum Herstellen eines Holzzierteils |
CN108332535A (zh) * | 2018-02-08 | 2018-07-27 | 张俊定 | 一种节能型胎基布导热油式烘干装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPR211400A0 (en) * | 2000-12-15 | 2001-01-25 | Koppers-Hickson Timber Protection Pty Limited | Material and method for treatment of timber |
US6282810B1 (en) * | 2001-01-04 | 2001-09-04 | Te-Ming Hsieh | Method for dehydrating wooden material |
JP3954544B2 (ja) * | 2002-12-18 | 2007-08-08 | 株式会社神戸製鋼所 | 植物由来バイオマスの乾燥方法およびバイオマス燃料の製造方法 |
FR2870476B1 (fr) * | 2004-05-21 | 2010-12-24 | Maud Lasnon | Procede de traitement des bois verts en amont et dispositif pour le traitement |
US20070038353A1 (en) * | 2005-08-15 | 2007-02-15 | Larschan Bradley R | Driver activity and vehicle operation logging and reporting |
FR2918160A1 (fr) * | 2007-06-28 | 2009-01-02 | Inst Francais Du Petrole | Procede de preparation d'une charge mixte contenant de la biomasse et une coupe hydrocarbonnee lourde en vue d'une gazeification ulterieure. |
PL2334999T3 (pl) * | 2008-09-23 | 2013-03-29 | Featherlite N V | Sposób poprawy jakości elementu drewnianego i element drewniany obrabiany tym sposobem |
DE102010000065A1 (de) | 2010-01-13 | 2011-07-14 | Buchmann, Rainer, 60320 | Wärmeübertragungsmittel und Holzschutzverfahren zur Wärmebehandlung von Holzprodukten |
DE102011104025A1 (de) | 2010-06-11 | 2011-12-15 | Technische Universität Dresden | Verfahren zur Modifizierung von Holz oder Holzwerkstoffen sowie chemisch und thermisch modifiziertes Holz |
EP2641712A1 (de) | 2012-03-20 | 2013-09-25 | Timura Holzmanufaktur GmbH | Holzveredelungsverfahren und Vorrichtung zur Durchführung des Verfahrens |
WO2015196285A1 (en) | 2014-06-25 | 2015-12-30 | 9274-0273 Québec Inc. | Process and apparatus for treating lignocellulosic material |
DE102015204756A1 (de) | 2015-03-17 | 2016-09-22 | Rolf Goldschmidt | Verfahren zum Behandeln von Holz |
BR112017022011A2 (pt) * | 2015-04-13 | 2018-07-03 | Tricoya Tech Ltd | método para a acetilação contínua de elementos de madeira ? |
US11338468B2 (en) | 2015-04-13 | 2022-05-24 | Tricoya Technologies Ltd. | Method for continuous acetylation of wood elements |
CN107999350A (zh) * | 2017-12-20 | 2018-05-08 | 浙江可信竹木有限公司 | 一种竹帘烘干机构 |
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FR397786A (fr) * | 1908-03-06 | 1909-05-17 | Cyprien Gillet Aine | Procédé de traitement pour sécher et augmenter les qualités du bois |
GB2088422A (en) * | 1980-11-05 | 1982-06-09 | Hager Bror Olof | Surface treatment of wood |
EP0510435A1 (de) * | 1991-04-18 | 1992-10-28 | PFLEIDERER VERKEHRSTECHNIK GmbH & CO. KG | Verfahren zur Holzimprägnierung |
WO1992019429A1 (en) * | 1991-05-07 | 1992-11-12 | Ulrich Herbert Schirnig | Method of quality improvement of wooden articles, such as improved preservation of the wood through impregnation thereof |
US5244472A (en) * | 1987-05-13 | 1993-09-14 | Simmons John J | Preparation of chemically dried cellulosic fuel |
WO1994006638A1 (en) * | 1992-09-15 | 1994-03-31 | Ulrich Herbert Schirnig | A method of cleansing woodwork |
DE19715664A1 (de) * | 1997-04-16 | 1998-10-22 | Butzbacher Weichenbau Gmbh | Verfahren zum Imprägnieren von Festkörpern |
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DE1000592B (de) * | 1955-07-30 | 1957-01-10 | Deutsche Elektronik Gmbh | Verfahren und Vorrichtung zur Tiefimpraegnierung von Holz mittels Hochfrequenz und fluessigen Impraegniermitteln |
GB1181246A (en) * | 1967-04-28 | 1970-02-11 | Hager Ab | Improvements in or relating to Methods of Treating Wood |
US3995077A (en) * | 1975-07-24 | 1976-11-30 | Hager Aktiebolag | Process for treatment of wood |
FI59355C (fi) * | 1976-01-26 | 1981-08-10 | Kemira Oy | Foerfarande foer konservering av traevara mot roetsvamp och skadeinsekter |
DE2916677A1 (de) * | 1979-04-25 | 1980-11-06 | Ruetgerswerke Ag | Verfahren zur verguetung von holz |
DE3043659A1 (de) * | 1980-11-19 | 1982-07-08 | Bror Olof 18263 Djursholm Häger | Oberflaechenbehandlung von holz |
DE4412296A1 (de) * | 1994-04-09 | 1995-10-12 | Thermo Lignum Maschinen Vertri | Verfahren und Vorrichtung zur Abtötung von Schädlingen in einem davon befallenen Objekt |
FI104706B (fi) * | 1995-05-31 | 2000-03-31 | Valtion Teknillinen | Menetelmä öljyn kiinnittämiseksi puuhun |
-
1998
- 1998-11-17 DE DE19852827A patent/DE19852827A1/de not_active Withdrawn
-
1999
- 1999-11-06 AT AT99122192T patent/ATE258486T1/de active
- 1999-11-06 DE DE59908408T patent/DE59908408D1/de not_active Expired - Lifetime
- 1999-11-06 EP EP99122192A patent/EP1002630B1/de not_active Expired - Lifetime
- 1999-11-17 CA CA002289867A patent/CA2289867C/en not_active Expired - Lifetime
- 1999-11-17 US US09/441,370 patent/US6217939B1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR397786A (fr) * | 1908-03-06 | 1909-05-17 | Cyprien Gillet Aine | Procédé de traitement pour sécher et augmenter les qualités du bois |
GB2088422A (en) * | 1980-11-05 | 1982-06-09 | Hager Bror Olof | Surface treatment of wood |
US5244472A (en) * | 1987-05-13 | 1993-09-14 | Simmons John J | Preparation of chemically dried cellulosic fuel |
EP0510435A1 (de) * | 1991-04-18 | 1992-10-28 | PFLEIDERER VERKEHRSTECHNIK GmbH & CO. KG | Verfahren zur Holzimprägnierung |
WO1992019429A1 (en) * | 1991-05-07 | 1992-11-12 | Ulrich Herbert Schirnig | Method of quality improvement of wooden articles, such as improved preservation of the wood through impregnation thereof |
WO1994006638A1 (en) * | 1992-09-15 | 1994-03-31 | Ulrich Herbert Schirnig | A method of cleansing woodwork |
DE19715664A1 (de) * | 1997-04-16 | 1998-10-22 | Butzbacher Weichenbau Gmbh | Verfahren zum Imprägnieren von Festkörpern |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2199013A1 (es) * | 2001-03-13 | 2004-02-01 | Rodilla Carlos A Martinez | Procedimiento para el tratamiento de la madera, corcho linolium y hormigon. |
DE102009047137A1 (de) | 2009-11-25 | 2011-05-26 | Institut Für Holztechnologie Dresden Gemeinnützige Gmbh | Verfahren zur thermischen Modifizierung oder Vergütung von Holz und Holzprodukten |
DE102015013450A1 (de) | 2015-10-16 | 2016-04-14 | Daimler Ag | Verfahren zum Herstellen eines Holzzierteils |
CN108332535A (zh) * | 2018-02-08 | 2018-07-27 | 张俊定 | 一种节能型胎基布导热油式烘干装置 |
Also Published As
Publication number | Publication date |
---|---|
US6217939B1 (en) | 2001-04-17 |
CA2289867C (en) | 2008-07-29 |
ATE258486T1 (de) | 2004-02-15 |
CA2289867A1 (en) | 2000-05-17 |
DE59908408D1 (de) | 2004-03-04 |
EP1002630B1 (de) | 2004-01-28 |
DE19852827A1 (de) | 2000-05-18 |
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