CN106393342B - A kind of drying means of timber - Google Patents
A kind of drying means of timber Download PDFInfo
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- CN106393342B CN106393342B CN201610857856.XA CN201610857856A CN106393342B CN 106393342 B CN106393342 B CN 106393342B CN 201610857856 A CN201610857856 A CN 201610857856A CN 106393342 B CN106393342 B CN 106393342B
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- timber
- dry
- bulb temperature
- drying
- wood
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Classifications
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- 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
-
- 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
- B27K3/12—Impregnating by coating the surface of the wood with an impregnating paste
-
- 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
- B27K5/001—Heating
-
- 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
- B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
- B27K5/006—Vibrations
-
- 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
- B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
- B27K5/0065—Ultrasonic treatment
-
- 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
- B27K5/04—Combined bleaching or impregnating and drying of wood
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of method for drying wood, include the following steps：A. timber is dug in advance, timber is cut into plank of the same size；B. the timber saline sook that will be dug in advance；C. the timber crossed with saline sook is wrapped up with masking foil, and is toasted；D. the timber toasted is smeared into anti-cracking agent of wood, then carries out microwave and ultrasound is dry；E. the timber of microwave and ultrasound after dry is subjected to thermal convection current drying.The present invention can not only effectively be dried the moisture of wood internal, and the moisture of timber is made to reach dry standard less than 8.5%.Also it is avoided that timber is cracking, phenomena such as deforming, be bent, raising one's head and looking.The present invention can effectively improve the rate of drying of timber, shorten the time and reduce cost, by the accurate temperature of each technique and the technology controlling and process of humidity, realize stable amount of wood metaplasia production；Obtained lumber quality is stablized, and the error between the moisture content and target moisture content of desciccate is smaller.
Description
Technical field
The invention belongs to agricultural fields, and in particular to a kind of drying means of timber.
Background technology
The drying of wood is the important link of timber processing, directly affects the quality and utilization rate of timber, is provided in forest
It is particularly important in the case of the day by day shortage of source.Wood furniture is unqualified with material drying, as dry mass is not achieved both at home and abroad
Technology requirement under the conditions of Different climate, easily causes product quality stability poor, and cracking, deformation and paint adhesion are not
Secured problem.Meanwhile the moisture of wood internal is not easy drying and causes the perishability of timber and easy corrosion.If in addition, dry
In the process unreasonable, especially easily causes the deformation, bending and cracking of timber, causes the decline of wood quality in rapid draing
And waste.Therefore, it is to ensure wood drying quality, drop using rational method for drying wood and improvement drying of wood control technology
The important measures of low energy expenditure and cost and one of the research topic of domestic and foreign scholars' extensive concern.
Invention content
The problems of for the above-mentioned prior art, the object of the present invention is to provide a kind of drying means of timber, no
Phenomena such as being only capable of ensureing the quality of timber, avoiding the occurrence of cracking, deformation, while energy conservation and environmental protection improve drying efficiency, when shortening
Between, moreover it is possible to reach the moisture requirement of timber.
Technical solution proposed by the present invention：
A kind of method for drying wood, includes the following steps：
A. timber is dug in advance, timber is cut into plank of the same size；
B. the timber saline sook that will be dug in advance；
C. the timber crossed with saline sook is wrapped up with masking foil, and is toasted；
D. the timber toasted is smeared into anti-cracking agent of wood, then carries out microwave and ultrasound is dry；
E. the timber of microwave and ultrasound after dry is subjected to thermal convection current drying.
Further, the laying method of timber mutually hangs down for the timber of even level and odd-level in the step A to step E
Directly, it is in well shape, the distance between the timber is 0.2~0.5m.Timber is put in well shape, be conducive to increase timber with
The contact area of dry environment accelerates being placed with conducive to timber for the air circulation between timber, quickening rate of drying, and well shape
Uniform force, avoid the deformation of timber.
Further, brine is saturated brine in the step B.
Further, the temperature toasted in the step C is 170~250 DEG C；The time of baking is 0.5~1 hour.
Further, after first smearing anti-cracking agent of wood to the timber crossed with saline sook in the step C, then masking foil is used
Package, and toasted.
Further, the anti-cracking agent of wood includes the mixture of turpentine oil and camphor, by weight, turpentine oil 60~
80 parts, 20~40 parts of camphor.
Further, the step D microwaves and the control condition of ultrasound drying are：The power of ultrasonic wave is 1~3KW, institute
It is 20~28KHz to state frequency；The power of microwave is 1~5KW, and the frequency is 1000~3000MHz.
Further, the step D microwaves and the control dry environment of ultrasound drying are：Absolute pressure 0.02~
0.08MPa, 70~80 DEG C of dry-bulb temperature, 8~10 DEG C of wet-bulb temperature；1~3 hour drying time.
Further, the step E is divided into 5 stages with thermal convection current drying process, and the specific control condition in each stage is：
1）Control dry environment is 30~40 DEG C of dry-bulb temperature, 25~30 DEG C of wet-bulb temperature；Drying time is 6~12 small
When；
2）Control dry environment is 40~50 DEG C of dry-bulb temperature, 20~25 DEG C of wet-bulb temperature；Drying time is 6~12 small
When；
3）Control dry environment is 50~60 DEG C of dry-bulb temperature, 15~20 DEG C of wet-bulb temperature；Drying time is 6~12 small
When；
4）Control dry environment is 60~70 DEG C of dry-bulb temperature, 10~15 DEG C of wet-bulb temperature；Drying time is 6~12 small
When；
5）Control dry environment is 70~80 DEG C of dry-bulb temperature, 5~10 DEG C of wet-bulb temperature；Drying time is 6~12 hours.
Further, the dry environment of the step E thermal convection current drying process is：Absolute pressure is 0.02~0.08MPa.
Timber has been carried out pre- plane and handled by the present invention, shortens the arid cycle of timber, and drying of wood production is greatly lowered
Raw energy consumption prevents the buckling deformation of wood plank in the drying process.The thickness for spending plank is consistent, then whole wood planks will
It is clamped by parting bead, so as to prevent or reduce buckling deformation in the drying process.Timber is cut into thickness
For 22mm~30mm, the cracking of wood surface in drying can be effectively prevented, increases the effective capacity of hothouse.
Applicant it has been investigated that, the timber dug in advance with saline sook not only can effectively prevent timber it is cracking,
Phenomena such as deformation, moreover it is possible to make timber that there is anti-corrosion, mothproof, insect prevention characteristic, and dry speed can be accelerated, wherein salt
Crystallization goes out salinity after water evaporation, can effectively absorb the moisture of wood internal, accelerate the rate of drying of timber.And use saturation
Brine can ensure the anti-corrosive properties of the drying of wood and accelerate rate of drying to the greatest extent.
Applicant it has been investigated that, with masking foil package timber toasted；The moisture of wood internal can be made fully heated,
Dry rate is not only accelerated, time and energy have been saved.And timber internal/external heating can also be made uniform, be conducive to timber modeling
Property, the phenomenon that effectively reducing and avoid cracking, deformation, be bent.When timber uneven heating, heat is uneven, makes water inside and outside timber
Divide evaporation uneven, be easy to cause the deformation of timber, is easy cracking and bending.Meanwhile it being also beneficial to timber and absorbing brine, enhancing
Its anti-corrosive properties and insect prevention.
Present invention microwave drying, can make the drying of the moisture of timber from inside to outside, and with ultrasonic in combination microwave drying, energy
The vibration and evaporation to moisturize, accelerates the rate of drying of timber, significantly improves efficiency.And it is anti-to smear timber in wood surface
Agent is split, can effectively avoid the deformation of timber, in addition under the action of microwave and ultrasound, from timber capable of being made effectively to absorb anticracking
Agent makes anti-cracking agent of wood effectively immerse wood internal, is conducive to the preservation of timber against decay, insect resistance and insect prevention, in addition, also having
Conducive to the plasticity of timber.
Using interim convective drying technique, the control condition of dry environment can be made with the drying regime phase one of timber
It causes, can effectively ensure the form of timber, shorten drying time.
And during microwave and ultrasonic drying and convective drying technique, it is set as subnormal ambient, moisture can be conducive to
Evaporation, it is effective to improve dry rate.
Beneficial effects of the present invention：
Drying more comprehensively, more rationally can be realized to timber using method for drying wood of the present invention, can not only be had
The moisture to wood internal of effect is dried, and the moisture of timber is made to reach dry standard less than 8%.Also it is avoided that timber goes out
Phenomena such as now cracking, deform, being bent, raising one's head and looking reaches outer appearance looks elegant, indeformable, non-discolouring technique effect.In addition, this hair
The bright rate of drying that can effectively improve timber shortens the time and reduces cost, by the accurate temperature of each technique and wet
The technology controlling and process of degree realizes stable amount of wood metaplasia production；Obtained lumber quality is stablized, the moisture content and mesh of desciccate
The error marked between moisture content is smaller.And the higher target product of dry mass can be obtained, as needed, final products contain
Water rate can reach the quality standard less than 8.5%, meet the lumber quality standard that further processing needs are carried out to timber.
In addition, the present invention has good protective action to wood surface, it can effectively prevent and reduce timber Free water, exhale
Water suction leads to the contraction and expansion of lumber fibre conduit because of climate change.Individual arid areas can be prevented and reduced because timber contracts
Phenomena such as timber end caused by water is dry and cracked and surface checking and humid area timber caused by lumber fibre tube swelling are curved
Stick up and crack phenomenon, and can effectively reduce the rupture of the end caused by timber rapid draing and surface crack, it is dry and cracked phenomena such as.It is suitable
With range is wide, penetration is strong, moistening effect is good, various wet difference ring borders are adapted to, and make timber that there is good Anticorrosive Character
And insect prevention characteristic.The stability for improving timber extends the service life of timber.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, the present invention is described in more detail.
It should be appreciated that described herein, specific examples are only used to explain the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of method for drying wood, includes the following steps：
A. timber is dug in advance, timber is cut into plank of the same size；Wherein, the thickness that is cut into of timber is
22mm。
B. the timber dug in advance saturated brine is impregnated 1 day.
C. the timber crossed with saline sook is wrapped up with masking foil, and is toasted；Wherein, the temperature of baking is 170
℃；The time of baking is 1 hour.
D. the timber toasted is smeared into anti-cracking agent of wood, then carries out microwave and ultrasound is dry；Wherein, the wood
Material anti-cracking agent includes the mixture of turpentine oil and camphor, by weight, 75 parts of turpentine oil, 25 parts of camphor.Microwave and ultrasound are dry
Control condition be：The power of ultrasonic wave is 1KW, and the frequency is 20KHz；The power of microwave is 1KW, and the frequency is
1000MHz.Dry environment is：Absolute pressure 0.02MPa, 70 DEG C of dry-bulb temperature, 8 DEG C of wet-bulb temperature；1 hour drying time.
E. the timber of microwave and ultrasound after dry is subjected to thermal convection current drying.The technique is further divided into 5 stages, respectively
The specific control condition in stage is：
1）Control dry environment is 30 DEG C of dry-bulb temperature, 25 DEG C of wet-bulb temperature；Drying time is 6 hours；
2）Control dry environment is 40 DEG C of dry-bulb temperature, 20 DEG C of wet-bulb temperature；Drying time is 6 hours；
3）Control dry environment is 50 DEG C of dry-bulb temperature, 15 DEG C of wet-bulb temperature；Drying time is 6 hours；
4）Control dry environment is 60 DEG C of dry-bulb temperature, 10 DEG C of wet-bulb temperature；Drying time is 6 hours；
5）Control dry environment is 70 DEG C of dry-bulb temperature, 5 DEG C of wet-bulb temperature；Drying time is 6 hours.
Wherein, the laying method of timber is mutually perpendicular to for the timber of even level and odd-level in the step A to step E,
In well shape, the distance between the timber is 0.2m.
Embodiment 2
A kind of method for drying wood, includes the following steps：
A. timber is dug in advance, timber is cut into plank of the same size；Wherein, the thickness that is cut into of timber is
30mm。
B. the timber dug in advance saturated brine is impregnated 1 day.
C. it after first smearing anti-cracking agent of wood to the timber crossed with saline sook, then is wrapped up with masking foil, and is toasted.
Wherein, the temperature of baking is 250 DEG C；The time of baking is 0.5 hour.Wherein, the anti-cracking agent of wood include turpentine oil and
The mixture of camphor, by weight, 60 parts of turpentine oil, 40 parts of camphor.
D. the timber toasted is smeared into anti-cracking agent of wood, then carries out microwave and ultrasound is dry；Wherein, the wood
Material anti-cracking agent includes the mixture of turpentine oil and camphor, by weight, 60 parts of turpentine oil, 40 parts of camphor.Microwave and ultrasound are dry
Control condition be：The power of ultrasonic wave is 3KW, and the frequency is 28KHz；The power of microwave is 5KW, and the frequency is
3000MHz.Dry environment is：Absolute pressure 0.08MPa, 80 DEG C of dry-bulb temperature, 10 DEG C of wet-bulb temperature；3 hours drying times.
E. the timber of microwave and ultrasound after dry is subjected to thermal convection current drying.Wherein, the absolute pressure of thermal convection current dry environment
Power is 0.08MPa.The technique is further divided into 5 stages, and the specific control condition in each stage is：
1）Control dry environment is 40 DEG C of dry-bulb temperature, 30 DEG C of wet-bulb temperature；Drying time is 12 hours；
2）Control dry environment is 50 DEG C of dry-bulb temperature, 25 DEG C of wet-bulb temperature；Drying time is 12 hours；
3）Control dry environment is 60 DEG C of dry-bulb temperature, 20 DEG C of wet-bulb temperature；Drying time is 12 hours；
4）Control dry environment is 70 DEG C of dry-bulb temperature, 15 DEG C of wet-bulb temperature；Drying time is 12 hours；
5）Control dry environment is 80 DEG C of dry-bulb temperature, 10 DEG C of wet-bulb temperature；Drying time is 12 hours.
Wherein, the laying method of timber is mutually perpendicular to for the timber of even level and odd-level in the step A to step E,
In well shape, the distance between the timber is 0.5m.
It after the present embodiment first smears anti-cracking agent of wood to the timber crossed with saline sook, then is wrapped up with masking foil, and carried out
Baking.Timber can be made to fully absorb anti-cracking agent during baking, contribute to the cracking for inhibiting timber, and enhancing anti-corrosion
Property and insect prevention.
Embodiment 3
A kind of method for drying wood, includes the following steps：
A. timber is dug in advance, timber is cut into plank of the same size；Wherein, the thickness that is cut into of timber is
28mm。
B. the timber dug in advance saturated brine is impregnated 1 day.
C. it after first smearing anti-cracking agent of wood to the timber crossed with saline sook, then is wrapped up with masking foil, and is toasted.
Wherein, the temperature of baking is 200 DEG C；The time of baking is 0.7 hour.Wherein, the anti-cracking agent of wood include turpentine oil and
The mixture of camphor, by weight, 80 parts of turpentine oil, 20 parts of camphor.
D. the timber toasted is smeared into anti-cracking agent of wood, then carries out microwave and ultrasound is dry；Wherein, the wood
Material anti-cracking agent includes the mixture of turpentine oil and camphor, by weight, 80 parts of turpentine oil, 20 parts of camphor.Microwave and ultrasound are dry
Control condition be：The power of ultrasonic wave is 2KW, and the frequency is 25KHz；The power of microwave is 4KW, and the frequency is
2450MHz.Dry environment is：Absolute pressure 0.05MPa, 75 DEG C of dry-bulb temperature, 9 DEG C of wet-bulb temperature；2 hours drying times.
E. the timber of microwave and ultrasound after dry is subjected to thermal convection current drying.Wherein, the absolute pressure of thermal convection current dry environment
Power is 0.05MPa.And the technique is further divided into 5 stages, the specific control condition in each stage is：
1）Control dry environment is 35 DEG C of dry-bulb temperature, 27 DEG C of wet-bulb temperature；Drying time is 8 hours；
2）Control dry environment is 45 DEG C of dry-bulb temperature, 27 DEG C of wet-bulb temperature；Drying time is 8 hours；
3）Control dry environment is 55 DEG C of dry-bulb temperature, 17 DEG C of wet-bulb temperature；Drying time is 8 hours；
4）Control dry environment is 65 DEG C of dry-bulb temperature, 17 DEG C of wet-bulb temperature；Drying time is 8 hours；
5）Control dry environment is 75 DEG C of dry-bulb temperature, 7 DEG C of wet-bulb temperature；Drying time is 8 hours.
Wherein, the laying method of timber is mutually perpendicular to for the timber of even level and odd-level in the step A to step E,
In well shape, the distance between the timber is 0.3 m.
It after the present embodiment first smears anti-cracking agent of wood to the timber crossed with saline sook, then is wrapped up with masking foil, and carried out
Baking.Timber can be made to fully absorb anti-cracking agent during baking, contribute to the cracking for inhibiting timber, and enhancing anti-corrosion
Property and insect prevention.
Claims (1)
1. a kind of method for drying wood, which is characterized in that include the following steps：
A. timber is dug in advance, timber is cut into plank of the same size；
B. the timber saline sook that will be dug in advance, brine are saturated brine；
C. the timber crossed with saline sook is wrapped up with masking foil, and is toasted, the temperature of baking is 170~250 DEG C；Baking
Time be 0.5~1 hour, after first smearing anti-cracking agent of wood to the timber crossed with saline sook, then wrapped up with masking foil, gone forward side by side
Row baking；
D. the timber toasted is smeared into anti-cracking agent of wood, the anti-cracking agent of wood includes the mixture of turpentine oil and camphor,
By weight, 60~80 parts of turpentine oil, 20~40 parts of camphor, then progress microwave and ultrasound drying, microwave and ultrasound drying
Control condition is：The power of ultrasonic wave is 1~3kW, and frequency is 20~28kHz；The power of microwave is 1~5kW, and frequency is
1000~3000MHz, microwave and ultrasonic dry control dry environment are：0.02~0.08MPa of absolute pressure, dry-bulb temperature 70
~80 DEG C, 8~10 DEG C of wet-bulb temperature；1~3 hour drying time；
E. the timber of microwave and ultrasound after dry is subjected to thermal convection current drying, thermal convection current drying process is divided into 5 stages, step A
Laying method to timber in step E is that the timber of even level and odd-level is mutually perpendicular to, and is in well shape, between the timber
Distance is 0.2~0.5m, and the control dry environment of thermal convection current drying process is：Absolute pressure is 0.02~0.08MPa,
The specific control condition in each stage is：
1) control dry environment is 30~40 DEG C of dry-bulb temperature, 25~30 DEG C of wet-bulb temperature；Drying time is 6~12 hours；
2) control dry environment is 40~50 DEG C of dry-bulb temperature, 20~25 DEG C of wet-bulb temperature；Drying time is 6~12 hours；
3) control dry environment is 50~60 DEG C of dry-bulb temperature, 15~20 DEG C of wet-bulb temperature；Drying time is 6~12 hours；
4) control dry environment is 60~70 DEG C of dry-bulb temperature, 10~15 DEG C of wet-bulb temperature；Drying time is 6~12 hours；
5) control dry environment is 70~80 DEG C of dry-bulb temperature, 5~10 DEG C of wet-bulb temperature；Drying time is 6~12 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857856.XA CN106393342B (en) | 2016-09-28 | 2016-09-28 | A kind of drying means of timber |
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|---|---|---|---|
| CN201610857856.XA CN106393342B (en) | 2016-09-28 | 2016-09-28 | A kind of drying means of timber |
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| CN106393342A CN106393342A (en) | 2017-02-15 |
| CN106393342B true CN106393342B (en) | 2018-09-14 |
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| CN1043729A (en) * | 1988-12-26 | 1990-07-11 | 黑龙江省林产工业研究所 | Anti-cracking agent of wood |
| CN1294000C (en) * | 2003-12-11 | 2007-01-10 | 中国国际海运集装箱(集团)股份有限公司 | Plywood plate in use for floorboard in container and production method |
| CN104325533B (en) * | 2014-09-05 | 2016-08-17 | 汪加林 | A kind of crack resistence method of bamboo carving |
| CN104827534A (en) * | 2015-05-11 | 2015-08-12 | 中国林业科学研究院木材工业研究所 | Robinia pseudoacacia sawn timber drying method |
| CN105313203A (en) * | 2015-10-27 | 2016-02-10 | 中山市大涌镇生产力促进中心 | Quick drying method for rosewood |
| 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 |
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2016
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