CN1876343A - High temperature water heat processing method for timber - Google Patents
High temperature water heat processing method for timber Download PDFInfo
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- CN1876343A CN1876343A CN 200610031950 CN200610031950A CN1876343A CN 1876343 A CN1876343 A CN 1876343A CN 200610031950 CN200610031950 CN 200610031950 CN 200610031950 A CN200610031950 A CN 200610031950A CN 1876343 A CN1876343 A CN 1876343A
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Abstract
The invention discloses a method for treating wood at high temperature and with hot water, comprising following steps: (1) putting wood in high temperature furnace; increasing temperature at furnace to 120-150 Deg. C and keeping temperature; (2) increasing temperature to 180-240 Deg .C when the water content of wood reduced to lower than 5%; keeping temperature and the time is 0.5-3 hours according to wood thickness per cm; (3) reducing temperature at furnace, treating wood with steam or hot water when temperature is reduced below 100 Deg. C to reduce wood water content to 7-10%; (4) reducing temperature continuously and getting wood out of furnace when the temperature inside wood is reduced to about 40 Deg. C; (5) balancing at atmosphere for more than 15 days. The invention can increase size stability, rotproofness and weather ability of wood, and the wood can be applied in environment with large change in humidity and temperature.
Description
Technical field
The present invention relates to a kind of high-temperature water Technology for Heating Processing of timber, this technology is applicable to carries out high-temperature water heat treatment to timber, to improve Wood Dimensional Stability, weatherability and corrosion resistant performance etc.
Background technology
For a long time, no matter be from volume or compare in quality, timber occupies first of the four big construction materials always.It has renewable, easy processing, natural series of advantages such as beautiful decorative pattern is arranged, and is widely used in aspects such as building, furniture manufacturing, interior decoration.As a kind of natural green environment-friendly materials, timber also exists some natural defectives, has anisotropy, weatherability difference etc. as timber but simultaneously.Therefore timber is when bigger medium-term and long-term use of environment of humidity and variations in temperature, because the anisotropy of shrinking makes timber produce various defectives easily, as distortion and cracking.In the higher environment of humidity ratio during (as place outdoor, that often directly contact with water) use, the easy variable color of timber, rotten etc.These defectives have seriously restricted the scope of application of timber-work to a great extent, have shortened its service life.Although people have adopted a lot of way (as assembly, covering with paint in length and breadth) to overcome these defectives in the process of producing and using, do not address these problems from timber inside at all.
Summary of the invention
Technical problem to be solved by this invention is in order to overcome defectives such as distortion that timber in use occurs easily, cracking, rotten, variable color, a kind of Wood Dimensional Stability, rotproofness and weatherability of improving is provided, makes after treatment timber can be widely used in the high temperature water heat processing method of the timber in the bigger environment of humidity and variations in temperature.
The high temperature water heat processing method of timber of the present invention is characterized in that:
1), timber is placed the high-temperature heat treatment stove; Temperature in the high-temperature heat treatment stove is brought up to 120～150 ℃ of insulations;
2), after moisture content is reduced to below 5%, improve temperature to the 180 ℃～240 ℃ of insulations in the high-temperature heat treatment stove; Temperature retention time kept 0.5～3 hour by the timber of every centimetre of thickness;
3), reduce the temperature of high-temperature heat treatment stove, after temperature is reduced to below 100 ℃, timber is handled with steam or hot water, make moisture content to 7～10% of timber.
4), continue to reduce the temperature in the high-temperature heat treatment stove, after the timber temperature inside is reduced to about 40 ℃, come out of the stove.
5), balance time more than 15 days in atmospheric environment.
The present invention can be 10～15% with the drying of wood to moisture content before timber being placed the high-temperature heat treatment stove handle.
The present invention can carry out decatize and handle before the drying of wood is handled: timber is placed the steam treatment jar, be incubated under 110～140 ℃ of temperature, temperature retention time was pressed every centimetre of thickness timber 0.5～3 hour.
The invention has the beneficial effects as follows: the present invention adopts the high-temperature water heat-treating methods, means by physics, make the inner chemical change that takes place of timber, form the combination again of chemical bond, destroy the water imbibition group in the timber, and the part chemical composition in the timber is decomposed, fundamentally improve stability, weatherability and the antiseptic property of timber.Timber after handling through method of the present invention can be widely used in the bigger environment of humidity and variations in temperature, as as exterior decoration material, the indoor material that directly contacts and as the base material of northern heating floor with water, Wood Dimensional Stability obviously strengthens after treatment, hygroscopicity, water absorbing properties reduce significantly, and its weatherability and rotproofness strengthen.
The specific embodiment
Embodiment 1:
With thickness is 20mm, and length is that the timber of 1000mm places the high-temperature heat treatment stove, makes the temperature of high-temperature heat treatment stove be elevated to 130 ℃, and recording moisture content is 4.5%, temperature is elevated to 180 ℃ again, keeps 1 hour under this temperature; Handle the temperature that the back reduces the high-temperature heat treatment stove, after temperature is reduced to 95 ℃, handle, regulate the moisture content to 9% of timber, come out of the stove after reducing the temperature to 40 ℃ of high-temperature heat treatment stove with steam; Balance is 15 days in atmospheric environment.
Embodiment 2:
With thickness is 40mm, and length is that the timber of 1000mm places the high-temperature heat treatment stove, makes the temperature of high-temperature heat treatment stove be elevated to 130 ℃, and recording moisture content is 4.8%, temperature is elevated to 240 ℃ again, keeps 6 hours under this temperature; Handle the temperature that the back reduces the high-temperature heat treatment stove, after temperature is reduced to 95 ℃, handle with steam, regulate the moisture content to 9% of timber, come out of the stove after reducing the temperature to 40 ℃ of high-temperature heat treatment stove: balance is 15 days in atmospheric environment.
1,2 of embodiment at timber be dry good timber.
Embodiment 3:
Present embodiment at timber be the timber of humidity big (greater than 15%).
With thickness is 30mm, and length is that the drying of wood to the moisture content of 1000mm is 14%, and dried timber is placed the high-temperature heat treatment stove, make the temperature of high-temperature heat treatment stove be elevated to 140 ℃, moisture content reduces to 4.8%, temperature is elevated to 220 ℃ again, keeps 6 hours under this temperature; Handle the temperature that the back reduces the high-temperature heat treatment stove, after temperature is reduced to 95 ℃, handle, regulate the moisture content to 9% of timber, come out of the stove after reducing the temperature to 40 ℃ of high-temperature heat treatment stove with steam; Balance is 15 days in atmospheric environment.
Embodiment 4;
Present embodiment is at moist wood.
With thickness is 30mm, and length is that the timber of 1000mm places steam treatment jar decatize to handle, and treatment temperature is set at 125 ℃; 2 hours processing times; With the above-mentioned drying of wood to moisture content 13%; Timber after handling is placed the high-temperature heat treatment stove, make the temperature of high-temperature heat treatment stove be elevated to 140 ℃, recording moisture content is 4.5%, temperature is elevated to 220 ℃ again, keeps 7 hours under this temperature; Handle the temperature that the back reduces the high-temperature heat treatment stove, after temperature is reduced to 95 ℃, handle, regulate the moisture content to 9% of timber, come out of the stove after reducing the temperature to 40 ℃ of high-temperature heat treatment stove with steam; Balance is 15 days in atmospheric environment.
Claims (3)
1, a kind of high temperature water heat processing method of timber is characterized in that:
1), timber is placed the high-temperature heat treatment stove; Temperature in the high-temperature heat treatment stove is brought up to 120～150 ℃ of insulations;
2), after moisture content is reduced to below 5%, improve temperature to the 180 ℃～240 ℃ of insulations in the high-temperature heat treatment stove; Temperature retention time kept 0.5～3 hour by the timber of every centimetre of thickness;
3), reduce the temperature of high-temperature heat treatment stove, after temperature is reduced to below 100 ℃, timber is handled with steam or hot water, make moisture content to 7～10% of timber;
4), continue to reduce the temperature in the high-temperature heat treatment stove, after the timber temperature inside is reduced to about 40 ℃, come out of the stove;
5), balance time more than 15 days in atmospheric environment.
2,, it is characterized in that before timber being placed the high-temperature heat treatment stove handle, the drying of wood being arrived moisture content 10～15% according to the high temperature water heat processing method of the described timber of claim 1.
3, according to the high temperature water heat processing method of the described timber of claim 2, it is characterized in that carrying out decatize before the drying of wood is handled handles: timber is placed the steam treatment jar, be incubated under 110～140 ℃ of temperature, temperature retention time was pressed every centimetre of thickness timber 0.5～3 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100319506A CN100500401C (en) | 2006-07-13 | 2006-07-13 | High temperature water heat processing method for timber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100319506A CN100500401C (en) | 2006-07-13 | 2006-07-13 | High temperature water heat processing method for timber |
Publications (2)
| Publication Number | Publication Date |
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| CN1876343A true CN1876343A (en) | 2006-12-13 |
| CN100500401C CN100500401C (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100319506A Active CN100500401C (en) | 2006-07-13 | 2006-07-13 | High temperature water heat processing method for timber |
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| CN (1) | CN100500401C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069972B (en) * | 2007-05-28 | 2010-05-26 | 浙江林学院 | Method for producing charred wood by heat treatment |
| CN101224593B (en) * | 2008-02-01 | 2010-06-09 | 中国林业科学研究院木材工业研究所 | Wood heat treatment method |
| CN102152361A (en) * | 2011-01-05 | 2011-08-17 | 中国热带农业科学院橡胶研究所 | Method for thermally modifying wood by oil palm oil |
| CN102241032A (en) * | 2011-06-03 | 2011-11-16 | 西北农林科技大学 | Pretreatment method for improving dimension stability of timber |
| CN101497799B (en) * | 2008-01-29 | 2012-11-14 | 上海大不同木业科技有限公司 | Superhigh temperature wood carbonization method |
| CN104334325A (en) * | 2012-01-31 | 2015-02-04 | 泰坦木业有限公司 | Acetylated wood |
| CN106182282A (en) * | 2015-12-22 | 2016-12-07 | 北京林业大学 | A kind of timber heat modification processing method |
| CN106182281A (en) * | 2015-09-29 | 2016-12-07 | 北京林业大学 | The collection system of VOC and method during a kind of heat_treated wood |
| CN107081825A (en) * | 2017-03-29 | 2017-08-22 | 阜南县环宇柳木工艺制品有限公司 | A kind of method for preventing poplar craze and transfiguration |
| CN107520932A (en) * | 2017-10-11 | 2017-12-29 | 南京林业大学 | Poplar hot wax are dried and high-temperature heat treatment integral process |
| CN108839160A (en) * | 2018-05-29 | 2018-11-20 | 浙江农林大学 | A kind of hydro-thermal process bamboo matter powder moulds the preparation method of closely knit material without rubber moulding |
| CN110076868A (en) * | 2019-05-29 | 2019-08-02 | 南京林业大学 | A kind of timber, bamboo wood heat treatment-mould proof modified synergic method |
-
2006
- 2006-07-13 CN CNB2006100319506A patent/CN100500401C/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069972B (en) * | 2007-05-28 | 2010-05-26 | 浙江林学院 | Method for producing charred wood by heat treatment |
| CN101497799B (en) * | 2008-01-29 | 2012-11-14 | 上海大不同木业科技有限公司 | Superhigh temperature wood carbonization method |
| CN101224593B (en) * | 2008-02-01 | 2010-06-09 | 中国林业科学研究院木材工业研究所 | Wood heat treatment method |
| CN102152361A (en) * | 2011-01-05 | 2011-08-17 | 中国热带农业科学院橡胶研究所 | Method for thermally modifying wood by oil palm oil |
| CN102152361B (en) * | 2011-01-05 | 2013-10-16 | 中国热带农业科学院橡胶研究所 | Method for thermally modifying wood by oil palm oil |
| CN102241032A (en) * | 2011-06-03 | 2011-11-16 | 西北农林科技大学 | Pretreatment method for improving dimension stability of timber |
| CN102241032B (en) * | 2011-06-03 | 2013-12-25 | 西北农林科技大学 | Pretreatment method for improving dimension stability of timber |
| CN104334325A (en) * | 2012-01-31 | 2015-02-04 | 泰坦木业有限公司 | Acetylated wood |
| CN106182281B (en) * | 2015-09-29 | 2018-08-07 | 北京林业大学 | The collection system and method for VOC during a kind of heat_treated wood |
| CN106182281A (en) * | 2015-09-29 | 2016-12-07 | 北京林业大学 | The collection system of VOC and method during a kind of heat_treated wood |
| CN106182282A (en) * | 2015-12-22 | 2016-12-07 | 北京林业大学 | A kind of timber heat modification processing method |
| CN106182282B (en) * | 2015-12-22 | 2017-12-05 | 北京林业大学 | A kind of timber heat modification processing method |
| CN107081825A (en) * | 2017-03-29 | 2017-08-22 | 阜南县环宇柳木工艺制品有限公司 | A kind of method for preventing poplar craze and transfiguration |
| CN107520932A (en) * | 2017-10-11 | 2017-12-29 | 南京林业大学 | Poplar hot wax are dried and high-temperature heat treatment integral process |
| CN108839160A (en) * | 2018-05-29 | 2018-11-20 | 浙江农林大学 | A kind of hydro-thermal process bamboo matter powder moulds the preparation method of closely knit material without rubber moulding |
| CN108839160B (en) * | 2018-05-29 | 2021-03-30 | 浙江农林大学 | Preparation method of glue-free molding compact material of bamboo powder through hydrothermal treatment |
| CN110076868A (en) * | 2019-05-29 | 2019-08-02 | 南京林业大学 | A kind of timber, bamboo wood heat treatment-mould proof modified synergic method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100500401C (en) | 2009-06-17 |
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Address after: 413400 Taojiang Economic Development Zone, Taojiang, Hunan, China, Yiyang Patentee after: Hunan peach bamboo Polytron Technologies Inc Address before: 413400 Taojiang Economic Development Zone, Taojiang, Hunan, China, Yiyang Patentee before: Hunan Taohuajiang Industrial Co., Ltd. |