CN102435054B - Wood drying method - Google Patents
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- CN102435054B CN102435054B CN201110370954.8A CN201110370954A CN102435054B CN 102435054 B CN102435054 B CN 102435054B CN 201110370954 A CN201110370954 A CN 201110370954A CN 102435054 B CN102435054 B CN 102435054B
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Abstract
The invention discloses a wood drying method, which comprises the following steps: 1 low temperature preheating, 2 preliminary-stage processing, 3 ventilating and drying, 4 middle-stage processing, 5 secondary drying, 6 final processing, 7 lowering humiture and surface drying. The technical scheme of the wood drying method well resolves the problem of wood mustiness caused by over low temperature in the low temperature preheating stage or the preliminary processing stage, thereby being suitable for industrial production.
Description
Technical field
The present invention relates to a kind of processing method of timber, specifically, is a kind of mold-proof method, belongs to wood processing field.
Background technology
Pure solid wood furniture has natural color and luster and beautiful decorative pattern, and Stability Analysis of Structures is durable in use, is also simultaneously optimal furniture since the dawn of human civilization, and very popular, therefore timber is the optimal material of making in the world top-grade furniture.
But be only just directly used in making furniture through common dry processing with regard to natural timber and also exist undesirable disadvantage: be as easily mouldy rotten under long-term wet environment in the floor in kitchen, toilet or north orientation room.This is the insoluble problem that solid wood furniture itself exists, and it is also the most troubling place of many solid wood furniture manufacturers simultaneously.
The mouldy reason of timber has multiple, and common mouldy in this area is mainly too low and long causing of time of the temperature that operates in processing procedure due to timber." temperature too low (the being less than 40 degree) processing stage of low-temperature prewarming stage or initial stage, or processing time long (being greater than 24 hours); Timber temperature humidity condition is in the early stage excessively soft, wet-and-dry-bulb thermometer difference little (being less than 2 degree), or equilibrium moisture content numerical value excessive (being greater than 18 degree)." (" reason of Wood drying defect and generation " Chen Zhongdong, vast stretch of wooded country etc., forestry machinery and woodworking equipment the 7th phase the 34th volume in 2006).If too high in low-temperature prewarming phase temperature, can cause again the increase of production cost.Therefore, how in treating of wood, both can realize mildew-resistant object, and can save again production capacity, become this area and face a difficult problem for solution.
After high-temperature heat treatment, the content of reducing sugar of wood surface raises, and more easily goes mouldy." heat-treated wood is than the easier mildew of untreated timber, and goes mouldy early than mid portion in heat-treated wood surface " (" the performance evaluation III of heat treatment improved wood " Zhu Kun journey Kang Hua Li Huiming etc., timber industry the 24th the 1st phase of volume of January in 2010).As can be seen here, no matter wood mould processes low temperature or high temperature, all can go mouldy, and even high-temperature process is mouldy faster.Therefore, the problem of wood mould processing is become to the technical barrier that those skilled in the art must overcome.
Summary of the invention
The object of this invention is to provide a kind of method of processing wooden piece of going mouldy of can preventing.Method of the present invention can realize low-temperature prewarming, and anti-mold effect can reach identical with prior art simultaneously.
For achieving the above object, the present invention adopts following steps:
(1) low-temperature prewarming: pressurization, 40 DEG C of following low-temperature prewarmings, controlled humidity;
(2) initial stage processes: pressurization, and temperature rise is to 49.5-50.5 DEG C, controlled humidity;
(3) dry: aeration-drying, pressure, at 0.40-0.80mpa, is controlled humiture, keeps 72 hours;
(4) process mid-term: pressure 0.30-0.60mpa, temperature is 55.5-56.5 DEG C, and humidity is 53.5-54.5%, and the time is 4-6 hour;
(5) redrying: pressure 0.4-0.6mpa, time 48-72 hour;
(6) process eventually: pressure 0.30-0.60mpa, keeps 3-6 hour;
(7) reduce humiture, dry tack free.
Preferably, the described warm-up phase of step (1) is between pressure 0.30-0.80mpa, within temperature and humidity 3-6 hour, at the uniform velocity rises to respectively 35-37 DEG C and 33-35%, keeps 4-6 hour;
Preferably, the described pretreatment of step (2) was pressure 0.40-0.80mpa, and temperature reached 49.5-50.5 DEG C at 1-2 hour; Within humidity 2-3 hour, at the uniform velocity rise to 47.5-48.5%, and humiture is remained on to 43-47 DEG C and 38-42%, temperature fall time 3 hours;
Preferably, what step (3) was described is dried as the constant rate of drying, and once, pressure fluctuates within the scope of 0.40-0.80mpa in ventilation blower commutation in every 6 hours, and humiture ensures respectively 43-47 DEG C and 38-42%, keeps 72 hours;
Preferably, step (4) is pressure 0.30-0.60mpa processing stage of described mid-term, within every 0.5-1 hour, adjusts a pressure, and each pressure is adjusted 0.10-0.20mpa, and temperature is 55.5-56.5 DEG C, and humidity is 53.5-54.5%, keeps 4-6 hour;
Preferably, the described redrying of step (5) is decreasing drying rate period, pressure 0.40-0.60mpa, and temperature 49-51 DEG C, humidity 41-43%, keeps 48-72 hour;
Preferably, the pressure 0.30-0.60mpa that step (6) is described, temperature 62.5-63.5 DEG C, humidity 54-66%, keeps 3-6 hour;
Humiture rises to 62.5-63.5 DEG C from 49-51 DEG C with 41-43% respectively needs 3 hours with 54-66%;
Preferably, the described dry tack free of step (7) is pressure 0.4-0.8mpa, and temperature requirement is at 50-54 DEG C, and humidity requirement 38-44%, keeps 4-12 hour;
Humiture is reduced to 50-54 DEG C from 62.5-63.5 DEG C with 54-66% respectively needs 3 hours equally with 38-44%.
Further preferred, described pressure is surge pressure, within every 0.5-1 hour, adjusts a pressure, and each pressure is adjusted 0.10-0.20mpa;
Preferred, preparation method of the present invention is:
(1) warm-up phase: surge pressure 0.30mpa-0.80mpa, within temperature and humidity 3-6 hour, at the uniform velocity rise to respectively 35-37 DEG C and 33-35%, keep 4-6 hour;
(2) initial stage processing stage: surge pressure 0.40-0.80mpa, temperature reached 49.5-50.5 DEG C at 1-2 hour; Within humidity 2-3 hour, at the uniform velocity rise to 47.5-48.5%, and humiture is remained on to 43-47 DEG C and 38-42%, temperature fall time is 3 hours;
(3) constant-rate drying period: once, surge pressure fluctuates within the scope of 0.40-0.80mpa in ventilation blower commutation in every 6 hours, and humiture is respectively 43-47 DEG C and 38-42%, keeps 72 hours;
(4) mid-term processing stage: surge pressure 0.30-0.60mpa, within every 0.5-1 hour, adjust a pressure, each pressure is adjusted 0.10-0.20mpa, and temperature is 55.5-56.5 DEG C, and humidity is 53.5-54.5%, and the time is 4-6 hour;
(5) decreasing drying rate period: surge pressure 0.40-0.60mpa, temperature 49-51 DEG C, humidity 41-43%, keeps 48-72 hour;
(6) processing stage of end of a period: surge pressure 0.30-0.60mpa, temperature 62.5-63.5 DEG C, humidity 54-66%, keeps 3-6 hour;
(7) the dry tack free stage: surge pressure 0.40-0.80mpa, temperature 50-54 DEG C, humidity 38-44%, keeps 4-12 hours.
Humiture rises to 62.5-63.5 DEG C from 49-51 DEG C with 41-43% respectively needs 3 hours with 54-66%; Humiture is reduced to 50-54 DEG C from 62.5-63.5 DEG C with 54-66% respectively needs 3 hours with 38-44%.
Detect its fungicidal properties through GB/T 18261-2000 " mould inhibitor control timber mould and the blue test method that becomes bacterium ", 30 days killed values of timber, between 0.4 ~ 0.6, have very good anti-mold effect.Technical scheme of the present invention, by the control to temperature, pressure and humidity, has well solved the mouldy phenomenon of the too low timber causing of temperature processing stage of low-temperature prewarming stage or initial stage.Timber prepared by the present invention, moisture control below 10%, the constant product quality of acquisition, in production process energy-conservation obviously, the waste of avoiding excess Temperature to cause.
Detailed description of the invention
embodiment 1
Pressure 0.3mpa, 35 DEG C of preheatings, humidity 33%; Be forced into 0.4mpa, temperature rise to 50.5 DEG C, controlled humidity; Aeration-drying, pressure, at 0.4mpa, is controlled humiture, and is kept 72 hours; Pressure 0.3mpa, temperature is 55.5 DEG C, humidity is 53.5%, keeps 4 hours; Pressure 0.4mpa, redrying 48-72 hour; Pressure 0.3mpa, rises to 62.5 DEG C and 54% by humiture in 3 hours, and then reduces humiture, dry tack free.After testing, 30 days killed values are 0.6.
embodiment 2
Pressure 0.8 mpa, 37 DEG C of preheatings, humidity 35%; Pressure 0.8mpa, temperature rise to 49.5 DEG C, controlled humidity; Aeration-drying, pressure, at 0.8mpa, is controlled humiture, and is kept 72 hours; Pressure 0.6mpa, temperature is 56.5 DEG C, humidity is 54.5%, keeps 6 hours; Pressure 0.6mpa, redrying 72 hours; Pressure 0.6mpa, rises to 63.5 DEG C and 66% by humiture in 3 hours, and then reduces humiture, dry tack free.After testing, 30 days killed values are 0.58.
Embodiment 3
Pressure 0.5 mpa, 36 DEG C of preheatings, humidity 34%; Pressure 0.5mpa, temperature rise to 50 DEG C, controlled humidity; Aeration-drying, pressure, at 0.5mpa, is controlled humiture, and is kept 72 hours; Pressure 0.4mpa, temperature is 56 DEG C, humidity is 54%, keeps 5 hours; Pressure 0.5mpa, redrying 54 hours; Pressure 0.4mpa, rises to 63 DEG C and 60% by humiture in 3 hours, and then reduces humiture, dry tack free.After testing, 30 days killed values are 0.57.
Embodiment 4
Pressure 0.3mpa, temperature and humidity at the uniform velocity rises to respectively 35 DEG C and 33 DEG C for 3 hours, keeps 4 hours; Pressure 0.4mpa, temperature reached 49.5 DEG C at 1 hour; Humidity at the uniform velocity rises to 47.5% in 2 hours, and humiture is remained on to 43 DEG C and 38%, temperature fall time 3 hours; Ventilation blower commutates once for every 6 hours, pressure 0.4mpa, and humiture is respectively 43 DEG C and 38%, the constant rate of drying 72 hours; Pressure 0.3mpa, adjusts a pressure for every 0.5 hour, and each pressure is adjusted 0.1mpa, and temperature is 55.5 DEG C, and humidity is 53.5%, and the time is 4 hours; Pressure 0.4mpa, 49 DEG C of temperature, humidity 41%, falling rate of drying 48 hours; Pressure 0.3mpa, 62.5 DEG C of temperature, humidity 54%, keeps 3 hours; Pressure 0.4mpa, temperature 50 C, humidity 38%, dry tack free 7 hours.
Humiture is risen to 62.5 DEG C and 54% from 49 DEG C and 41% respectively needs 3 hours, and humiture is reduced to 50 DEG C and 38% from 62.5 DEG C and 54% respectively also needs 3 hours.After testing, 30 days killed values are 0.54.
Embodiment 5
Pressure 0.6mpa, temperature and humidity at the uniform velocity rises to respectively 35.5 DEG C and 33.5 DEG C for 4 hours, keeps 4.5 hours; Pressure 0.6mpa, temperature reached 50.5 DEG C at 2 hours; Humidity at the uniform velocity rises to 48.5% in 3 hours, and humiture is remained on to 44 DEG C and 39%, temperature fall time 3 hours; Ventilation blower commutates once for every 6 hours, pressure 0.6mpa, and humiture is respectively 44 DEG C and 39%, the constant rate of drying 72 hours; Pressure 0.4mpa, adjusts a pressure for every 0.5 hour, and each pressure is adjusted 0.1mpa, and temperature is 56 DEG C, and humidity is 54%, keeps 5 hours; Pressure 0.45mpa, 49.5 DEG C of temperature, humidity 41.5%, falling rate of drying 54 hours; Pressure 0.45mpa, 63 DEG C of temperature, humidity 58%, keeps 4 hours; Pressure 0.5mpa, 51 DEG C of temperature, humidity 40%, dry tack free 6 hours.
Humiture is risen to 63 DEG C and 58% from 49.5 DEG C and 41.5% respectively needs 3 hours, and humiture is reduced to 51 DEG C and 40% from 63 DEG C and 58% respectively also needs 3 hours.After testing, 30 days killed values are 0.55.
Embodiment 6
Pressure 0.8mpa, temperature and humidity at the uniform velocity rises to respectively 37 DEG C and 35% in 6 hours, keeps 6 hours; Pressure 0.80mpa, temperature reached 50.5 DEG C at 2 hours; Humidity at the uniform velocity rises to 48% in 2 hours, and humiture is remained on to 47 DEG C and 42%, temperature fall time 3 hours; Ventilation blower commutates once for every 6 hours, pressure 0.8mpa, and humiture is respectively 47 DEG C and 42%, the constant rate of drying 72 hours; Pressure 0.6mpa, adjusts a pressure for every 1 hour, and each pressure is adjusted 0.2mpa, and temperature is 56.5 DEG C, and humidity is 54.5%, keeps 6 hours; Pressure 0.6mpa, 51 DEG C of temperature, humidity 43%, falling rate of drying 72 hours; Pressure 0.6mpa, 63.5 DEG C of temperature, humidity 66%, 6 hours time; Pressure 0.8mpa, 54 DEG C of temperature, humidity 44%, dry tack free 12 hours.
Humiture is risen to 63.5 DEG C and 66% from 51 DEG C and 43% respectively needs 3 hours, and humiture is reduced to 54 DEG C and 44% from 63.5 DEG C and 66% respectively also needs 3 hours.After testing, 30 days killed values are 0.53.
Embodiment 7
Pressure 0.55mpa, temperature and humidity at the uniform velocity rises to respectively 36 DEG C and 34% in 4 hours, keeps 5 hours; Pressure 0.60mpa, temperature reached 50 DEG C at 2 hours; Humidity at the uniform velocity rises to 48.5% in 3 hours, and humiture is remained on to 45 DEG C and 40%, temperature fall time 3 hours; Ventilation blower commutates once for every 6 hours, pressure 0.60mpa, and humiture is respectively 45 DEG C and 40%, the constant rate of drying 72 hours; Pressure 0.45mpa, adjusts a pressure for every 0.5 hour, and each pressure is adjusted 0.1mpa, and temperature is 56 DEG C, and humidity is 54%, and the time is 5 hours; Pressure 0.45mpa, temperature 50 C, humidity 42%, falling rate of drying 60 hours; Pressure 0.45mpa, 63 DEG C of temperature, humidity 60%, 4.5 hours time; Pressure 0.60mpa, 52 DEG C of temperature, humidity 40%, dry tack free 8 hours.
Humiture is risen to 63 DEG C and 60% from 50 DEG C and 42% respectively needs 3 hours, and humiture is reduced to 52 DEG C and 40% from 63 DEG C and 60% respectively also needs 3 hours.After testing, 30 days killed values are 0.51.
Embodiment 8
Pressure 0.70mpa, temperature and humidity at the uniform velocity rises to respectively 36.6 DEG C and 34.5% in 5 hours, keeps 5.5 hours; Pressure 0.70mpa, temperature reached 49.5 DEG C at 1 hour; Humidity at the uniform velocity rises to 47.5% in 2 hours, and humiture is remained on to 46 DEG C and 41%, temperature fall time 3 hours; Ventilation blower commutates once for every 6 hours, pressure 0.70mpa, and humiture is respectively 46 DEG C and 41%, the constant rate of drying 72 hours; Pressure 0.55mpa, adjusts a pressure for every 1 hour, and each pressure is adjusted 0.2mpa, and temperature is 56 DEG C, and humidity is 54%, and the time is 5.5 hours; Pressure 0.58mpa, 50.5 DEG C of temperature, humidity 42.5%, falling rate of drying 64 hours; Pressure 0.50mpa, 63 DEG C of temperature, 62% DEG C of humidity, 5 hours time; Pressure 0.70mpa, 53 DEG C of temperature, humidity 41%, dry tack free 10 hours.
Humiture is risen to 63 DEG C and 62% from 50.5 DEG C and 42.5% respectively needs 3 hours, and humiture is reduced to 53 DEG C and 41% from 63 DEG C and 62% respectively also needs 3 hours.After testing, 30 days killed values are 0.52.
Embodiment 9
Warm-up phase: surge pressure 0.3mpa-0.8mpa, temperature and humidity at the uniform velocity rises to respectively 35 DEG C and 33% in 3 hours, and keeps 4 hours; The processing stage of initial stage: surge pressure 0.40-0.80mpa, temperature reached 50 DEG C at 1.5 hours; Humidity at the uniform velocity rises to 48% in 2.5 hours, and humiture is remained on to 43 DEG C and 38%, temperature fall time 3 hours; Constant-rate drying period: once, surge pressure fluctuates within the scope of 0.4-0.8mpa in ventilation blower commutation in every 6 hours, and humiture ensures respectively 43 DEG C and 38%, and keeps 72 hours; The processing stage of mid-term: surge pressure 0.3-0.6mpa, within every 0.5 hour, adjust a pressure, each pressure is adjusted 0.1-0.2mpa, and temperature is 55.5 DEG C, and humidity is 53.5%, and the time is 4 hours; Decreasing drying rate period: surge pressure 0.4-0.6mpa, 49 DEG C of temperature, humidity 41%, 48 hours time; The processing stage of whole: surge pressure 0.3-0.6mpa, 62.5 DEG C of temperature, humidity 54%, 3 hours time; The dry tack free stage: surge pressure 0.4-0.8mpa, temperature requirement is at 50 DEG C, and humidity requirement 38%, keeps 4 hours.
Humiture rises to 62.5 DEG C and 54% from 49 DEG C and 41% respectively needs 3 hours, and humiture is reduced to 50 DEG C and 38% from 62.5 DEG C and 54% respectively needs 3 hours equally.After testing, 30 days killed values are 0.47.
Embodiment 10
Warm-up phase: surge pressure 0.3mpa-0.8mpa, temperature and humidity at the uniform velocity rises to respectively 337 DEG C and 35% in 6 hours, and keeps 6 hours; The processing stage of initial stage: surge pressure 0.4-0.80mpa, temperature reached 50.5 DEG C at 2 hours; Humidity at the uniform velocity rises to 48.5% DEG C for 3 hours, and humiture is remained on to 47 DEG C and 42%, temperature fall time 3 hours; Constant-rate drying period: once, surge pressure fluctuates within the scope of 0.4-0.8mpa in ventilation blower commutation in every 6 hours, and humiture ensures respectively 47 DEG C and 42%, and keeps 72 hours; The processing stage of mid-term: surge pressure 0.3-0.6mpa, within every 1 hour, adjust a pressure, each pressure is adjusted 0.2mpa, and temperature is 56.5 DEG C, and humidity is 54.5%, and the time is 6 hours; Decreasing drying rate period: surge pressure 0.4-0.6mpa, 51 DEG C of temperature, humidity 43%, 72 hours time; The processing stage of whole: surge pressure 0.3-0.6mpa, 63.5 DEG C of temperature, humidity 66%, 6 hours time; The dry tack free stage: surge pressure 0.4-0.8mpa, temperature requirement is at 54 DEG C, and humidity requirement 44%, keeps 12 hours.
Humiture rises to 63.5 DEG C and 66% from 51 DEG C and 43% respectively needs 3 hours, and humiture is reduced to 54 DEG C and 44% from 63.5 DEG C and 66% respectively, needs equally 3 hours.After testing, 30 days killed values are 0.43.
Embodiment 11
Warm-up phase: surge pressure 0.3mpa-0.8mpa, temperature and humidity at the uniform velocity rises to respectively 36 DEG C and 34% in 4.5 hours, and keeps 5 hours; The processing stage of initial stage: surge pressure 0.4-0.80mpa, temperature reached 49.5 DEG C at 2 hours; Humidity at the uniform velocity rises to 47.5% in 2 hours, and humiture is remained on to 45 DEG C and 40%, temperature fall time 3 hours; Constant-rate drying period: once, surge pressure fluctuates within the scope of 0.4-0.8mpa in ventilation blower commutation in every 6 hours, and humiture ensures respectively 45 DEG C and 40%, and keeps 72 hours; The processing stage of mid-term: surge pressure 0.3-0.6mpa, within every 0.5 hour, adjust a pressure, each pressure is adjusted 0.1mpa, and temperature is 56 DEG C, and humidity is 54%, and the time is 5 hours; Decreasing drying rate period: surge pressure 0.4-0.6mpa, temperature 50 C, humidity 42%, 60 hours time; The processing stage of whole: surge pressure 0.3-0.6mpa, 63 DEG C of temperature, 60% DEG C of humidity, 4.5 hours time; The dry tack free stage: surge pressure 0.4-0.8mpa, temperature requirement is at 52 DEG C, and humidity requirement 40%, keeps 8 hours.
Humiture rises to 63 DEG C and 60% from 50 DEG C and 42% respectively needs 3 hours, and humiture is reduced to 52 DEG C and 40% from 63 DEG C and 60% respectively needs 3 hours equally.After testing, 30 days killed values are 0.41.
Embodiment 12
Warm-up phase: surge pressure 0.3mpa-0.8mpa, temperature and humidity at the uniform velocity rises to respectively 36.5 DEG C and 34.5% in 5 hours, and keeps 5.5 hours; The processing stage of initial stage: surge pressure 0.4-0.80mpa, temperature reached 50.5 DEG C at 2 hours; Humidity at the uniform velocity rises to 48.5% in 3 hours, and humiture is remained on to 46 DEG C and 41%, temperature fall time 3 hours; Constant-rate drying period: once, surge pressure fluctuates within the scope of 0.4-0.8mpa in ventilation blower commutation in every 6 hours, and humiture ensures respectively 46 DEG C and 41%, and keeps 72 hours; The processing stage of mid-term: surge pressure 0.3-0.6mpa, within every 1 hour, adjust a pressure, each pressure is adjusted 0.2mpa, and temperature is 56.5 DEG C, and humidity is 54.5%, and the time is 4-6 hour; Decreasing drying rate period: surge pressure 0.4-0.6mpa, 50.5 DEG C of temperature, humidity 42.5%, 64 hours time; The processing stage of whole: surge pressure 0.3-0.6mpa, 63.5 DEG C of temperature, humidity 62%, 5 hours time; The dry tack free stage: surge pressure 0.4-0.8mpa, temperature requirement is at 53 DEG C, and humidity requirement 43%, keeps 10 hours.
Humiture rises to 63.5 DEG C and 62% from 50.5 DEG C and 42.5% respectively needs 3 hours, and reducing humiture needs 3 hours equally from 63.5 DEG C and 62% to 53 DEG C and 43% respectively.After testing, 30 days killed values are 0.40.
Claims (2)
1. a method for drying wood, comprises the steps:
(1) low-temperature prewarming: pressurization, 40 DEG C of following low-temperature prewarmings, controlled humidity;
(2) initial stage processes: pressurization, and temperature rise is to 49.5-50.5 DEG C, controlled humidity;
(3) dry: aeration-drying, pressure, at 0.40-0.80mpa, is controlled humiture, and is kept 72 hours;
(4) process mid-term: pressure 0.30-0.60mpa, temperature is 55.5-56.5 DEG C, humidity is 53.5-54.5%, keeps 4-6 hour;
(5) redrying: pressure 0.40-0.60mpa, keeps 48-72 hour;
(6) process eventually: pressure 0.30-0.60mpa, keeps 3-6 hour;
(7) reduce humiture, dry tack free;
The described low-temperature prewarming of step (1) is pressure 0.30-0.80mpa, within temperature and humidity 3-6 hour, at the uniform velocity rises to respectively 35-37 DEG C and 33-35%, keeps 4-6 hour;
It was pressure 0.40-0.80mpa that the described initial stage of step (2) processes, and temperature reached 49.5-50.5 DEG C at 1-2 hour; Within humidity 2-3 hour, at the uniform velocity rise to 47.5-48.5%, and humiture is remained on to 43-47 DEG C and 38-42%, temperature fall time 3 hours;
Step (4) is within every 0.5-1 hour, to adjust a pressure processing stage of described mid-term, and each pressure is adjusted 0.10-0.20mpa;
The described redrying of step (5) is decreasing drying rate period, temperature 49-51 DEG C, humidity 41-43%;
The described processing at end of step (6) is temperature 62.5-63.5 DEG C, humidity 54-66%;
The described dry tack free of step (7) is pressure 0.40-0.80mpa, and temperature requirement is at 50-54 DEG C, humidity requirement 38-44%, and the time is 4-12 hour.
2. method for drying wood according to claim 1, is characterized in that, described pressure is surge pressure.
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| CN104501542A (en) * | 2013-12-11 | 2015-04-08 | 融安华海木业有限公司 | Method for rapidly drying small-size fir board strips |
| CN104764295B (en) * | 2015-03-23 | 2017-06-06 | 南通亚振东方家具有限公司 | A kind of Wood rapid-drying method |
| CN105904561A (en) * | 2016-04-29 | 2016-08-31 | 重庆昊色堂建筑设计咨询有限公司 | Machining method of special-shaped tenon structure |
| CN106288688A (en) * | 2016-09-20 | 2017-01-04 | 阜南县环宇柳木工艺制品有限公司 | A kind of dry treatment process of veneer lumber |
| CN106403519A (en) * | 2016-09-20 | 2017-02-15 | 阜南县环宇柳木工艺制品有限公司 | Wood material drying method |
| CN106766834B (en) * | 2016-12-06 | 2019-07-16 | 阜阳市伟叶家具有限公司 | A kind of elm drying method |
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| US2534714A (en) * | 1947-04-21 | 1950-12-19 | William P Hoffman | Wood conditioning process |
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