CN111002412A - Antiseptic treatment method for furniture wood - Google Patents
Antiseptic treatment method for furniture wood Download PDFInfo
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- CN111002412A CN111002412A CN201911263812.4A CN201911263812A CN111002412A CN 111002412 A CN111002412 A CN 111002412A CN 201911263812 A CN201911263812 A CN 201911263812A CN 111002412 A CN111002412 A CN 111002412A
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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
- B27K3/0207—Pretreatment of wood before impregnation
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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
- B27K1/00—Damping wood
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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
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
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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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
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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
- 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
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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
- 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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- 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
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
Abstract
The invention discloses a furniture wood preservative treatment method, which comprises the following steps: steam heating and humidifying, ultrahigh temperature instant sterilization, primary cooling, secondary cooling, dipping, drying and spraying a waterproof agent. Adopt the mode of super high temperature instantaneous sterilization to disinfect to timber, can disinfect fast to timber inlayer and outward appearance and can not destroy the inside fibrous structure of timber simultaneously to flooding preservative after disinfecting and accomplishing makes the unable growth of microorganism breed in timber, strengthening timber antiseptic effect, extension ligneous life.
Description
Technical Field
The invention relates to the technical field of furniture processing, in particular to a furniture wood preservative treatment method.
Background
Wooden furniture is a very common furniture type in life, and is very popular due to the stable structure and long service life of the wooden furniture. Before wooden furniture is made, raw material wood needs to be processed, furniture can be made, and after the wood is cut down, various microorganisms exist in the wood, so that the interior of the wood is easy to rot if the wood is not subjected to preservative treatment, and the service life of the wood is influenced. The existing wood preservation mode is generally to spray or soak the preservative after the wood is dried, so that the preservative is permeated into the wood to play a role in killing microbes in the wood, and all harmful microbes in the wood cannot be completely killed only by using the preservative, so that the condition that the interior of the wood is easy to corrode still can occur only by using the preservative as a wood preservation means.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a method for antiseptic treatment of furniture wood, which can eliminate a large amount of harmful microorganisms in the wood and prolong the service life of the wood.
In order to solve the technical problems, the invention adopts the technical scheme that:
the furniture wood preservative treatment method comprises the following steps:
a1, steam heating and humidifying: heating and humidifying the wood in a closed container by adopting steam with the temperature of 30-50 ℃ for 30-45 min;
a2 ultrahigh temperature instant sterilization: putting the wood into a sealed tank, and sterilizing by using ultrahigh-temperature steam at the temperature of 130-150 ℃ for 4-7 s under the pressure of 0.13-0.14 MPa;
a3, primary cooling: carrying out primary cooling on the wood by adopting wet air with the temperature of 60-70 ℃ and the humidity of 13% -14% for 10-15 min;
a4, secondary cooling: adopting wet air with the temperature of 20-25 ℃ and the humidity of 11-12% to flow on the surface of the wood, and carrying out secondary cooling on the wood for 10-15 min;
a5 impregnation: placing wood into a treatment tank, maintaining negative pressure of 0.11Mpa for 20min under vacuum condition, injecting antiseptic into the treatment tank, and maintaining negative pressure of 0.11Mpa for 20 min;
a6 drying: drying the wood;
a7 spray water proofing agent: spraying a waterproof agent on the surface of the wood, and performing high-pressure treatment in a closed container, wherein the pressure is 0.11-0.12 MPa, and the time is 5-7 min.
The invention has the beneficial effects that: the invention is suitable for the preservative treatment of the cut wood. Steam is adopted for heating and humidifying, and heating is carried out before ultrahigh-temperature sterilization of the wood, so that excessive expansion of the wood due to rapid temperature rise is prevented, and wood fibers are prevented from being damaged; adopt the super high temperature instantaneous sterilization method, carry out instantaneous sterilization to timber through adopting super high temperature steam in the sealed can, and under the high pressure effect, super high temperature steam will permeate fast and kill the inside microorganism of timber to the inside of timber, play anticorrosive effect, simultaneously, because super high temperature steam sterilization time is instantaneous sterilization, consequently, can not be because timber is under the long-time effect of super high temperature steam and destroyed the structure, after carrying out super high temperature instantaneous sterilization, the antiseptic time of flooding preservative in order to prolong timber, extension timber's life.
Drawings
Fig. 1 is a flowchart of a method for preserving furniture wood according to an embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a method for preserving wood of furniture includes the following steps:
a1, steam heating and humidifying: heating and humidifying the wood in a closed container by adopting steam with the temperature of 30-50 ℃ for 30-45 min;
a2 ultrahigh temperature instant sterilization: putting wood into a sealed tank, heating the interior of the sealed tank, sealing the sealed tank after heating, and sterilizing by adopting ultrahigh-temperature steam at the temperature of 130-150 ℃ for 4-7 s and under the pressure of 0.13-0.14 MPa;
a3, primary cooling: carrying out primary cooling on the wood by adopting wet air with the temperature of 60-70 ℃ and the humidity of 13% -14% for 10-15 min;
a4, secondary cooling: adopting wet air with the temperature of 20-25 ℃ and the humidity of 11-12% to flow on the surface of the wood, and carrying out secondary cooling on the wood for 10-15 min;
a5 impregnation: placing wood into a treatment tank, maintaining negative pressure of 0.11Mpa for 20min under vacuum condition, injecting antiseptic into the treatment tank, and maintaining negative pressure of 0.11Mpa for 20 min;
a6 drying: drying the wood;
a7 spray water proofing agent: spraying a waterproof agent on the surface of the wood, and performing high-pressure treatment in a closed container, wherein the pressure is 0.11-0.12 MPa, and the time is 5-7 min.
The working principle of the invention is as follows:
carry out steam heating humidification to timber earlier, carry out super high temperature instantaneous sterilization to timber afterwards, carry out the flooding preservative to timber under vacuum environment at last, make inside the preservative infiltration timber, reach the purpose that prevents the microbial infection, the spraying waterproofing agent is used for preventing on the one hand in the moisture infiltration timber, and on the other hand is used for preventing inside the microorganism invasion timber.
From the above description, the beneficial effects of the present invention are: the invention is suitable for the preservative treatment of the cut wood. Steam is adopted for heating and humidifying, and heating is carried out before ultrahigh-temperature sterilization of the wood, so that excessive expansion of the wood due to rapid temperature rise is prevented, and wood fibers are prevented from being damaged; adopt the super high temperature instantaneous sterilization method, carry out instantaneous sterilization to timber through adopting super high temperature steam in the sealed can, and under the high pressure effect, super high temperature steam will permeate fast and kill the inside microorganism of timber to the inside of timber, play anticorrosive effect, simultaneously, because super high temperature steam sterilization time is instantaneous sterilization, consequently, can not be because timber is under the long-time effect of super high temperature steam and destroyed the structure, after carrying out super high temperature instantaneous sterilization, the antiseptic time of flooding preservative in order to prolong timber, extension timber's life.
Further, the preservative is ACQ.
Further, the waterproof agent is polydimethylsiloxane solution with the concentration of 10% or waterproof paint.
As can be seen from the above description, the polydimethylsiloxane, which has the characteristics of non-toxicity and innocuity, or the waterproof paint, which has higher safety than the waterproof paint, is used as the waterproof agent to prevent the moisture in the wood from volatilizing and prevent the moisture from entering the wood.
Further, the drying treatment step in the step a6 includes:
b1, primary cooling: putting the wood into a drying cellar with the temperature of 0 ℃, and carrying out primary cooling for 45-50 min;
b2, secondary cooling: putting the wood into a drying cellar with the temperature of-10 ℃ for secondary cooling for 15-20 min;
b3 vacuum freeze drying: putting the wood at a temperature of-20 to-30 ℃, freeze-drying for 50 to 60min, vacuumizing a freezing chamber at a vacuum pressure of 1.2 to 1.3Pa, and keeping the vacuum pressure for 10 to 15min to ensure that the water content of the wood reaches 13 to 14 percent;
b4, primary heating: putting the freeze-dried wood into a drying cellar at 0 ℃, and heating for 40-50 min for one time;
b5, secondary heating: putting the wood into a 15 ℃ heating room, and air-drying the wood by adopting 15 ℃ dry air to finish secondary heating;
b6, air drying at normal temperature: and (3) air-drying the wood at normal temperature for 20 min.
As can be seen from the above description, the wood is dried by adopting a freeze drying mode, the moisture in the wood is solidified after being frozen, and the wood can be directly sublimated into gas under the vacuum condition, so that the drying efficiency of the wood is improved.
Further, a steam injection mechanism is arranged in the sealed tank in the step a2, and the steam injection mechanism injects ultrahigh-temperature steam to sterilize the wood.
Further, the wet air used in the steps a3 and a4 contains 0.2mg/m3The ozone of (2).
As can be seen from the above description, since ozone is a strong oxidant, it can be used as a disinfectant, and ozone is contained in the humid air, which can kill microorganisms in the humid air, and ensure that the humid air does not bring harmful microorganisms to the wood, so as to ensure the sterilization effect of the wood.
Further, after the ultra-high temperature steam sterilization in the step a2, ozone with the concentration of 15mg/L is filled in the sealing tank, and the keeping time is 20-25 min.
As can be seen from the above description, harmful microorganisms which may exist in wood and are corrosive to wood are mainly fungi, and the fungi can be inactivated by keeping the concentration of ozone for 20min at 15mg/L, so that the sterilization effect can be enhanced by using ozone for sterilization after the ultra-high temperature steam sterilization.
The first embodiment of the invention is as follows:
referring to fig. 1, a method for preserving wood of furniture includes the following steps:
a1, steam heating and humidifying: heating and humidifying the wood in a closed container by adopting steam with the temperature of 30 ℃ for 45 min;
a2 ultrahigh temperature instant sterilization: putting wood into a sealed tank, heating the interior of the sealed tank, sealing the sealed tank after heating, and sterilizing by adopting ultra-high temperature steam at 130 ℃, for 7s and under the pressure of 0.14 MPa;
a3, primary cooling: cooling the wood for 15min by adopting wet air with the temperature of 60 ℃ and the humidity of 13%;
a4, secondary cooling: adopting wet air with the temperature of 20 ℃ and the humidity of 11% to flow on the surface of the wood, and carrying out secondary cooling on the wood for 15 min;
a5 impregnation: placing wood into a treatment tank, maintaining negative pressure of 0.11Mpa for 20min under vacuum condition, injecting antiseptic into the treatment tank, maintaining negative pressure of 0.11Mpa for 20 min;
a6 drying: drying the wood;
a7 spray water proofing agent: spraying a waterproof agent on the surface of the wood, and performing high-pressure treatment in a closed container under the pressure of 0.12MPa for 6 min.
Preferably, the preservative is ACQ.
Optionally, the waterproof agent is polydimethylsiloxane solution with the concentration of 10% or waterproof paint.
Preferably, the water-proofing agent is polydimethylsiloxane solution with the concentration of 10 percent;
specifically, the drying treatment step in the step a6 includes:
b1, primary cooling: putting the wood into a drying cellar with the temperature of 0 ℃, and carrying out primary cooling for 45-50 min;
b2, secondary cooling: putting the wood into a drying cellar with the temperature of-10 ℃ for secondary cooling for 15-20 min;
b3 vacuum freeze drying: putting the wood at-30 ℃ for freeze drying for 50min, vacuumizing a freezing chamber at the vacuum pressure of 1.3Pa, and keeping for 10min to ensure that the water content of the wood reaches 13-14%;
b4, primary heating: putting the freeze-dried wood into a drying cellar at 0 ℃, and heating for 40-50 min for one time;
b5, secondary heating: putting the wood into a 15 ℃ heating room, and air-drying the wood by adopting 15 ℃ dry air to finish secondary heating;
b6, air drying at normal temperature: and (3) air-drying the wood at normal temperature for 20 min.
Preferably, a steam injection mechanism is arranged in the sealed tank in the step a2, and the steam injection mechanism injects ultrahigh-temperature steam to sterilize the wood.
Preferably, the wet air used in steps a3 and a4 contains 0.2mg/m3The ozone of (2).
Specifically, after the ultra-high temperature steam sterilization in the step a2, ozone with the concentration of 15mg/L is filled in the sealing tank, and the holding time is 25 min.
The second embodiment of the invention is as follows:
referring to fig. 1, a method for preserving wood of furniture includes the following steps:
a1, steam heating and humidifying: heating and humidifying the wood in a closed container for 30min by adopting steam with the temperature of 50 ℃;
a2 ultrahigh temperature instant sterilization: putting wood into a sealed tank, heating the interior of the sealed tank, sealing the sealed tank after heating, and sterilizing by adopting ultra-high temperature steam at 150 ℃, for 4s and under the pressure of 0.13 MPa;
a3, primary cooling: cooling the wood for 10min by adopting wet air with the temperature of 70 ℃ and the humidity of 14%;
a4, secondary cooling: adopting wet air with the temperature of 25 ℃ and the humidity of 12% to flow on the surface of the wood, and carrying out secondary cooling on the wood for 10 min;
a5 impregnation: placing wood into a treatment tank, maintaining negative pressure of 0.11Mpa for 20min under vacuum condition, injecting antiseptic into the treatment tank, maintaining negative pressure of 0.11Mpa for 20 min;
a6 drying: drying the wood;
a7 spray water proofing agent: spraying a waterproof agent on the surface of the wood, and performing high-pressure treatment in a closed container under the pressure of 0.12MPa for 5 min.
Preferably, the preservative is ACQ.
Optionally, the waterproof agent is polydimethylsiloxane solution with the concentration of 10% or waterproof paint.
Preferably, the water-proofing agent is polydimethylsiloxane solution with the concentration of 10 percent;
specifically, the drying treatment step in the step a6 includes:
b1 steam heating: heating wood with water vapor at 50 deg.C under 0.12MPa in a sealed container for 30 min;
b2, cooling wet air: adopting wet air with the temperature of 10 ℃ and the humidity of 16% to flow on the surface of the wood for cooling for 35 min;
b3, primary cooling: placing the wood in a drying cellar with a temperature of 0 deg.C, and cooling for 50 min;
b4, secondary cooling: placing the wood in a drying cellar at-10 deg.C, and cooling for 20 min;
b5 vacuum freeze drying: putting the wood at the temperature of minus 20 ℃, freeze-drying for 60min, and vacuumizing a freezing chamber at the vacuum pressure of 1.2Pa to ensure that the water content of the wood reaches 14%;
b6, primary heating: putting the freeze-dried wood into a drying cellar at 0 ℃, and heating for 50min for one time;
b7, secondary heating: putting the wood into a 15 ℃ heating room, and air-drying the wood by adopting 15 ℃ dry air to finish secondary heating;
b8, air drying at normal temperature: and (3) air-drying the wood at normal temperature for 20 min.
Preferably, a steam injection mechanism is arranged in the sealed tank in the step a2, and the steam injection mechanism injects ultrahigh-temperature steam to sterilize the wood.
Preferably, the wet air used in steps a3 and a4 contains 0.2mg/m3The ozone of (2).
Specifically, after the ultra-high temperature steam sterilization in the step a2, ozone with the concentration of 15mg/L is filled in the sealing tank, and the holding time is 20 min.
The third embodiment of the invention is as follows:
referring to fig. 1, a method for preserving wood of furniture includes the following steps:
a1, steam heating and humidifying: heating and humidifying the wood in a closed container for 40min by adopting steam with the temperature of 35 ℃;
a2 ultrahigh temperature instant sterilization: putting wood into a sealed tank, heating the interior of the sealed tank, sealing the sealed tank after heating, and sterilizing by adopting ultra-high temperature steam at 140 ℃, for 5s and under the pressure of 0.135 MPa;
a3, primary cooling: cooling the wood for 13min by adopting wet air with the temperature of 65 ℃ and the humidity of 13.5%;
a4, secondary cooling: adopting wet air with the temperature of 22.5 ℃ and the humidity of 11.5% to flow on the surface of the wood, and carrying out secondary cooling on the wood for 13 min;
a5 impregnation: placing wood into a treatment tank, maintaining negative pressure of 0.11Mpa for 20min under vacuum condition, injecting antiseptic into the treatment tank, maintaining negative pressure of 0.11Mpa for 20 min;
a6 drying: drying the wood;
a7 spray water proofing agent: spraying a waterproof agent on the surface of the wood, and performing high-pressure treatment in a closed container under the pressure of 0.12MPa for 6 min.
Preferably, the preservative is ACQ.
Optionally, the waterproof agent is polydimethylsiloxane solution with the concentration of 10% or waterproof paint.
Preferably, the water-proofing agent is polydimethylsiloxane solution with the concentration of 10 percent;
specifically, the drying treatment step in the step a6 includes:
b1, primary cooling: putting the wood into a drying cellar with the temperature of 0 ℃, and carrying out primary cooling for 47.5 min;
b2, secondary cooling: putting the wood into a drying cellar with the temperature of-10 ℃, and carrying out secondary cooling for 47.5 min;
b3 vacuum freeze drying: putting the wood at-25 deg.C, freeze drying for 55min, vacuumizing the freezing chamber at 1.25Pa for 12.5min to make the water content of the wood reach 13.5%;
b4, primary heating: putting the freeze-dried wood into a drying cellar at 0 ℃, and heating for 45min for one time;
b5, secondary heating: putting the wood into a 15 ℃ heating room, and air-drying the wood by adopting 15 ℃ dry air to finish secondary heating;
b6, air drying at normal temperature: and (3) air-drying the wood at normal temperature for 20 min.
Preferably, a steam injection mechanism is arranged in the sealed tank in the step a2, and the steam injection mechanism injects ultrahigh-temperature steam to sterilize the wood.
Preferably, the wet air used in steps a3 and a4 contains 0.2mg/m3The ozone of (2).
Specifically, after the ultra-high temperature steam sterilization in the step a2, ozone with the concentration of 15mg/L is filled in the sealing tank, and the time for keeping is 22 min.
In conclusion, the furniture wood preservative treatment method provided by the invention adopts an ultrahigh-temperature instantaneous sterilization mode to sterilize the wood, can quickly sterilize the inner layer and the outer surface of the wood without damaging the fiber structure in the wood, and can soak the preservative after sterilization is completed, so that microorganisms cannot grow and propagate in the wood, the wood preservative effect is enhanced, and the service life of the wood is prolonged.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (7)
1. The furniture wood preservative treatment method is characterized by comprising the following steps:
a1, steam heating and humidifying: heating and humidifying the wood in a closed container by adopting steam with the temperature of 30-50 ℃ for 30-45 min;
a2 ultrahigh temperature instant sterilization: putting the wood into a sealed tank, and sterilizing by using ultrahigh-temperature steam at the temperature of 130-150 ℃ for 4-7 s under the pressure of 0.13-0.14 MPa;
a3, primary cooling: carrying out primary cooling on the wood by adopting wet air with the temperature of 60-70 ℃ and the humidity of 13% -14% for 10-15 min;
a4, secondary cooling: adopting wet air with the temperature of 20-25 ℃ and the humidity of 11-12% to flow on the surface of the wood, and carrying out secondary cooling on the wood for 10-15 min;
a5 impregnation: placing wood into a treatment tank, maintaining negative pressure of 0.11Mpa for 20min under vacuum condition, injecting antiseptic into the treatment tank, maintaining negative pressure of 0.11Mpa for 20 min;
a6 drying: drying the wood;
a7 spray water proofing agent: spraying a waterproof agent on the surface of the wood, and performing high-pressure treatment in a closed container, wherein the pressure is 0.11-0.12 MPa, and the time is 5-7 min.
2. The method for preserving and treating furniture wood according to claim 1, wherein the preservative is ACQ.
3. The method for preserving and treating furniture wood according to claim 1, wherein the water repellent is a 10% polydimethylsiloxane solution or a water repellent paint.
4. The method for preserving and treating furniture wood according to claim 1, wherein the drying treatment step in the step a6 comprises:
b1, primary cooling: putting the wood into a drying cellar with the temperature of 0 ℃, and carrying out primary cooling for 45-50 min;
b2, secondary cooling: putting the wood into a drying cellar with the temperature of-10 ℃ for secondary cooling for 15-20 min;
b3 vacuum freeze drying: putting the wood at a temperature of-20 to-30 ℃, freeze-drying for 50 to 60min, vacuumizing a freezing chamber at a vacuum pressure of 1.2 to 1.3Pa for 10 to 15min to ensure that the water content of the wood reaches 13 to 14 percent;
b4, primary heating: putting the freeze-dried wood into a drying cellar at 0 ℃, and heating for 40-50 min for one time;
b5, secondary heating: putting the wood into a 15 ℃ heating room, and air-drying the wood by adopting 15 ℃ dry air to finish secondary heating;
b6, air drying at normal temperature: and (3) air-drying the wood at normal temperature for 20 min.
5. The method for preserving and treating furniture wood according to claim 1, wherein a steam injection mechanism is arranged in the sealed tank in the step a2, and the steam injection mechanism injects ultrahigh-temperature steam to sterilize the wood.
6. The method for preserving and treating furniture wood according to claim 1, wherein the humid air used in steps a3 and a4 both contain the moisture at a concentration of 0.2mg/m3The ozone of (2).
7. The method for preservative treatment of the furniture wood according to claim 1, wherein after the ultrahigh-temperature steam sterilization in the step a2, ozone with the concentration of 15mg/L is filled in a sealed tank, and the preservation time is 20-25 min.
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