CN104827537A - Mildew proof treatment method for sawing process of dragon spruce - Google Patents
Mildew proof treatment method for sawing process of dragon spruce Download PDFInfo
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- CN104827537A CN104827537A CN201510224024.XA CN201510224024A CN104827537A CN 104827537 A CN104827537 A CN 104827537A CN 201510224024 A CN201510224024 A CN 201510224024A CN 104827537 A CN104827537 A CN 104827537A
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- dragon spruce
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- veneer bolt
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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
- B27K3/12—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
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G1/00—Machines or devices for removing knots or other irregularities or for filling-up holes
-
- 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
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a mildew proof treatment method for sawing process of dragon spruce. In the processes of dragon spruce log harvesting, transportation and sawing processing, a variety of methods coordinate to inhibit further development of decay and discoloration fungi in the transportation and processing of dragon spruce log to the maximum, and ensure the excellent quality of the final spruce log. The method includes the processes of: amputating dragon spruce log with decay and discoloration caused by skin damage; truncating the head and tail sections of the dragon spruce log; coating liquid paraffin repeatedly on two truncated ends and the skin breakage on the dragon spruce log; loading and unloading gently; storing; and conducting low temperature steam-injection treatment. The method is simple and convenient, can greatly the quality of the dragon spruce saw lumber, and has wide development prospects.
Description
Technical field
The invention belongs to wood preservation process field, be specifically related to the mildew-proof treatment method in a kind of dragon spruce saw lumber process.
Background technology
Dragon spruce also claims European kahikatea, its have a fine grain logical straight, wood property stable, not easily strain cracking, resistance to rotten power is strong, is easy to scrape simultaneously, the surface smoothing after scraping, light, well can absorb paint and colouring agent, and easily bond.Itself has soft color, fine and closely woven texture and native texture and is very naturally dissolved among furniture design, shows original U.S. of a kind of simplicity.Dragon spruce possesses multiple advantage and of many uses, by the people of the world is liked, is the traditional exported product of China's system for forestry.Be mainly used in: material used by furniture assembly, house furred ceiling, decorative keel, floor, white leaf window, cupboard board, interior wall panel, musical instrument, chamber, wooden barrel tub, joinery, cutting wood, structural lumber, bridge etc.
Because dragon spruce log is in the feature of felling, transporting and be subject in saw lumber process the infringement of foxiness stain fungus, cause the volume recovery of final qualified dragon spruce saw lumber on the low side, can not meet the demand of overseas market, economic benefit is bad.Therefore, from the felling of dragon spruce log, transport and saw lumber process, the development of the rotten stain fungus of dragon spruce in log and process must be suppressed to greatest extent, ensure the fine quality of final dragon spruce saw lumber.Method of the present invention significantly can improve volume recovery and the economic benefit of high-quality dragon spruce sawn timber.
Summary of the invention
The object of the present invention is to provide the mildew-proof treatment method in a kind of dragon spruce saw lumber process, from the felling of dragon spruce log, transport and saw lumber process, suppress the development of the rotten stain fungus of dragon spruce in log and process to greatest extent, ensure the fine quality of final dragon spruce saw lumber.Method of the present invention significantly can improve volume recovery and the economic benefit of high-quality dragon spruce sawn timber.
For achieving the above object, the present invention adopts following technical scheme:
Mildew-proof treatment method in a kind of dragon spruce saw lumber process comprises the following steps:
1) the rectangular heavy caliber dragon spruce veneer bolt of fresh cut is chosen at stump, remove stone and earth that dragon spruce veneer bolt epidermis adheres to, with ripping bar, dragon spruce veneer bolt is slowly rolled one week, first mark one by one by the cuticular breakdown defect of coloured pencil by dragon spruce veneer bolt, then strike off with hatchet the foxiness and variable color defect that dragon spruce veneer bolt causes because of cuticular breakdown;
2) solid paraffin block is poured in heating kettle, do not stop to stir with fire heating, make paraffin mass be fused into liquid completely, for subsequent use;
3) by truncated for the chain saw of two ends end to end of the dragon spruce veneer bolt chosen, atoleine in heating kettle two truncated terminations of brushing dragon spruce veneer bolt and cuticular breakdown place is repeatedly dipped in, until the paraffin oil solidified covers two truncated terminations and cuticular breakdown place completely with hairbrush;
4) the dragon spruce veneer bolt entrucking of Treating Cuttings with Paraffin Wax being crossed, notes handling with care in the process of loading-unloading vehicle, does not destroy the epidermis of dragon spruce veneer bolt as far as possible;
5) should start as early as possible after dragon spruce veneer bolt is transported to processing space to saw plate processing, as do not started processing as early as possible, dragon spruce veneer bolt should be put into Chu Muchi, weighting material makes it be immersed in completely under water; Water in Chu Muchi should often be changed, and the earth at the bottom of pond, bark and other impurity should regularly be removed, and keeps the clean of the wooden pool inner water of storage;
6) after dragon spruce veneer bolt is sawn into sheet material, the time of ventilating stacks should be short as much as possible, applies large stretch of Polypropylence Sheet hide as rainy weather, and it is dry to send into lumber kiln as early as possible;
7) in the dry run of dragon spruce sheet material, in order to ensure the dry mass of final dragon spruce sheet material, parting bead is spaced apart 30 ~ 40cm, and spacer material must select dragon spruce material of the same race, and the length of parting bead × wide × thick is 1400cm × 20cm × 20cm;
8) in the dry run of dragon spruce sheet material, in order to ensure the dry mass of final dragon spruce sheet material, select the low temperature drying technology that drying schedule is softer, and avoid using the spray that dragon spruce sheet material dry mass may be caused to decline to steam treatment process.
Thoroughly strike off dragon spruce veneer bolt with hatchet in step 1) and cause the rotten of timber and variable color by cuticular breakdown, prevent it from expanding further in the scope of subsequent transportation process mesocuticle breakage foxiness and variable color.
In step 3) with the object at the two ends end to end of the truncated dragon spruce veneer bolt of chain saw be in order to thoroughly remove dragon spruce veneer bolt termination adheres to earth, bacterium, stone foreign material, prevent in dragon spruce veneer bolt transportation rotten stain fungus from invading dragon spruce inside further by the weak link of log termination.
Atoleine in heating kettle two truncated terminations of brushing dragon spruce log and cuticular breakdown place is repeatedly dipped in hairbrush in step 3), until the object that the paraffin oil solidified covers two truncated terminations and cuticular breakdown place completely thoroughly completely cuts off air, prevent rotten stain fungus in dragon spruce veneer bolt transportation from invading sprucewood by the weak link on log inner.
Note in step 4) handling with care in the process of dragon spruce log loading-unloading vehicle, the object as far as possible not destroying the epidermis of dragon spruce veneer bolt avoids, in dragon spruce veneer bolt transportation, causing the intrusion of rotten stain fungus because dragon spruce veneer bolt epidermis occurs new defect.
As the saw plate processing of dragon spruce veneer bolt can not be started as early as possible in step 5), dragon spruce veneer bolt should be put into Chu Muchi, weighting material makes the underwater object of its complete submergence be thoroughly completely cut off air, prevents dragon spruce veneer bolt because of for a long time cannot saw lumber and cause the intrusion of rotten stain fungus.
Water in step 5) in Chu Mu pond should often be changed, and the earth at the bottom of pond, bark and other impurity should regularly be removed, and keeps the clean object of storing up wooden pool inner water to be prevent the muddy Chi Shui polluted from immersing dragon spruce veneer bolt inside and causing unnecessary loss.
After in step 6), dragon spruce veneer bolt is sawn into sheet material, the time of ventilating stacks should be short as much as possible, apply large stretch of Polypropylence Sheet as rainy weather to hide, and the object sending into lumber kiln drying as early as possible avoids because rotten stain fungus infects moist dragon spruce sheet material and causes unnecessary loss, the dragon spruce sheet material completing saw lumber operation must carry out drying processing in 48 hours.
In order to ensure the dry mass of final dragon spruce sheet material in step 7), parting bead is spaced apart 30 ~ 40cm, spacer material must select dragon spruce material of the same race, and length × wide × thick object for 1400cm × 20cm × 20cm of parting bead prevents dragon spruce sheet material from warpage occurring in dry run and produces the defect of interval blackstreak.
The main cause that in step 8), spray steaming treatment process causes dragon spruce sheet material dry mass to decline is steamed in processing procedure in spray, a large amount of water vapours is trickled down at dragon spruce plate surface with the form of drop and is accumulated in around parting bead, in the lengthy procedure of the low temperature drying of whole dragon spruce sheet material, dragon spruce plate surface around parting bead forms ugly blackstreak, causes unnecessary loss to dragon spruce sheet material.
Remarkable advantage of the present invention is: the present invention is subject to the feature of foxiness stain fungus infringement in felling, transport and saw lumber process according to dragon spruce log, take a series of measure targetedly, suppress the rotten stain fungus of dragon spruce further developing in log and process to greatest extent, ensure the fine quality of final dragon spruce saw lumber.This technology is simple and convenient, significantly can improve the quality of high-quality dragon spruce saw lumber, have vast potential for future development.
Detailed description of the invention
The concrete production stage of the mildew-proof treatment method in a kind of dragon spruce saw lumber process is:
Step 1: the rectangular heavy caliber dragon spruce log choosing fresh cut at stump, remove stone and earth that log epidermis adheres to, with ripping bar, log is slowly rolled one week, first mark one by one by the cuticular breakdown defect of coloured pencil by dragon spruce veneer bolt, then strike off with hatchet the foxiness and variable color defect that veneer bolt causes because of cuticular breakdown;
Step 2: pour in heating kettle by solid paraffin block at stump, heats with fire and does not stop by stirring rod to stir, making the paraffin mass in pot be fused into liquid completely, for subsequent use;
Step 3: by truncated for the chain saw of two ends end to end of the fresh cut rectangular heavy caliber dragon spruce log chosen, atoleine two truncated terminations of brushing dragon spruce log and the cuticular breakdown place at other position repeatedly in heating kettle is dipped in, until the paraffin oil solidified covers the cuticular breakdown place at above-mentioned two truncated terminations and other position completely with hairbrush;
Step 4: by the fresh cut rectangular heavy caliber dragon spruce log entrucking transport chosen, note handling with care in the process of loading-unloading vehicle, do not destroy the epidermis of rectangular heavy caliber dragon spruce log as far as possible;
Step 5: should start as early as possible to saw plate processing after rectangular heavy caliber dragon spruce log to processing place, as the saw plate processing of rectangular heavy caliber dragon spruce log can not be started as early as possible, rectangular heavy caliber dragon spruce log should be put into Chu Muchi as far as possible, weighting material makes it be immersed in completely under water.Water in Chu Muchi should often be changed, and the earth at the bottom of pond, bark and other impurity should regularly be removed, and what keep the wooden pool inner water of storage to divide is clean;
Step 6: after rectangular heavy caliber dragon spruce log is sawn into sheet material, in lumber yard, the time of ventilating stacks should be short as much as possible, applies large stretch of Polypropylence Sheet hide as rainy weather, and it is dry to send into lumber kiln as early as possible;
Step 7: in the dry stacking procedure of dragon spruce sheet material, in order to ensure the dry mass of final dragon spruce sheet material, parting bead interval range of choice is at 30 ~ 40cm/ bar, and spacer material must select dragon spruce material of the same race, parting bead size Selection 1400cm × 20cm × 20cm (long × wide × thick);
Step 8: in the dry run of dragon spruce sheet material, in order to ensure the dry mass of final dragon spruce sheet material, can select the low temperature drying technology that drying schedule is softer, and avoids using the spray that dragon spruce sheet material dry mass may be caused to decline to steam treatment process.
Preferably, described hatchet thoroughly strikes off veneer bolt and is caused the rotten of timber and variable color by cuticular breakdown in step 1, prevents from expanding further in the scope of dragon spruce log in subsequent transportation process mesocuticle breakage foxiness and variable color.
Preferably, the object at the two ends end to end with the truncated rectangular heavy caliber dragon spruce log of chain saw described is in step 3 to thoroughly remove the foreign material such as earth, bacterium, stone that log termination adheres to, and prevents in dragon spruce log process rotten stain fungus from invading dragon spruce inside further by the weak link of log termination.
Preferably, atoleine two truncated terminations of brushing dragon spruce log and the cuticular breakdown place at other position repeatedly of dipping in hairbrush in heating kettle described in step 3, until the object that the paraffin oil solidified covers the cuticular breakdown place at above-mentioned two truncated terminations and other position is completely thoroughly every air of determining, prevent rotten stain fungus in dragon spruce log process from invading sprucewood by the weak link on log inner.
Preferably, note handling with care in the process of described dragon spruce log loading-unloading vehicle in step 4, the object as far as possible not destroying the epidermis of rectangular heavy caliber dragon spruce log avoids, in dragon spruce log process, causing the intrusion of rotten stain fungus because dragon spruce log epidermis occurs new defect.
Preferably, the described saw plate processing as rectangular heavy caliber dragon spruce log can not be started as early as possible in steps of 5, rectangular heavy caliber dragon spruce log should be put into Chu Muchi as far as possible, weighting material makes the underwater object of its complete submergence be thoroughly every certainly air, prevents rectangular heavy caliber dragon spruce log because of for a long time cannot saw lumber and cause the intrusion of rotten stain fungus to endanger.
Preferably, water in steps of 5 in described Chu Mu pond should often be changed, earth at the bottom of pond, bark and other impurity should regularly be removed, and the clean object that the wooden pool inner water of maintenance storage divides prevents the muddy Chi Shui polluted from immersing rectangular heavy caliber dragon spruce log inside and causing unnecessary loss.
Preferably, after rectangular heavy caliber dragon spruce log described is in step 6 sawn into sheet material, in lumber yard, the time of ventilating stacks should be short as much as possible, apply large stretch of Polypropylence Sheet as rainy weather to hide, and the object sending into lumber kiln drying as early as possible avoids because rotten stain fungus infects moist dragon spruce sheet material and causes unnecessary loss, the dragon spruce quarter sawing material dimension board completing saw lumber operation must carry out drying processing in 48 hours.
Preferably, described in order to ensure the dry mass of final dragon spruce sheet material in step 7, parting bead interval range of choice is at 30 ~ 40cm/ bar, spacer material must select dragon spruce material of the same race, and the object of parting bead size Selection 1400cm × 20cm × 20cm (long × wide × thick) prevents dragon spruce quarter-sawed lumber from warpage (it is improper that parting bead interval is selected) occurring in timber drying and produces the defect of interval blackstreak (it is improper that spacer material is selected).
Preferably, the main cause that described spray steaming treatment process causes dragon spruce sheet material dry mass to decline in step 8 is steamed in processing procedure in spray, a large amount of water vapours is trickled down at dragon spruce plate surface with the form of drop and is accumulated in around parting bead, in the lengthy procedure of the low temperature drying of whole dragon spruce sheet material, dragon spruce plate surface around parting bead forms ugly blackstreak, causes unnecessary loss to dragon spruce sheet material.
The dragon spruce saw lumber prepared by the present invention, having have a fine grain logical straight, wood property stable, not easily strain cracking, the feature that resistance to rotten power is strong and color is soft, its fine and closely woven texture and native texture can be dissolved among furniture design very naturally, show original U.S. of a kind of simplicity.Be easy to scrape, the surface smoothing after scraping, light, well can absorb paint and colouring agent simultaneously, and easily bond and machining.The invention provides the mildew-proof treatment method provided in a kind of dragon spruce saw lumber process, the method is subject to the feature of foxiness stain fungus infringement in felling, transport and saw lumber process according to dragon spruce log, take a series of measure targetedly, suppress the rotten stain fungus of dragon spruce further developing in log and process to greatest extent, ensure the fine quality of final dragon spruce saw lumber, compared with the traditional dragon spruce saw lumber without mildew-resistant process, the method significantly can improve Grade A dragon spruce volume recovery more than 20 ~ 30%.This technology is simple and convenient, significantly can improve the quality of high-quality dragon spruce saw lumber, have vast potential for future development.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. the mildew-proof treatment method in dragon spruce saw lumber process, is characterized in that: comprise the following steps:
1) the rectangular heavy caliber dragon spruce veneer bolt of fresh cut is chosen at stump, remove stone and earth that dragon spruce veneer bolt epidermis adheres to, with ripping bar, dragon spruce veneer bolt is slowly rolled one week, first mark one by one by the cuticular breakdown defect of coloured pencil by dragon spruce veneer bolt, then strike off with hatchet the foxiness and variable color defect that dragon spruce veneer bolt causes because of cuticular breakdown;
2) solid paraffin block is poured in heating kettle, do not stop to stir with fire heating, make paraffin mass be fused into liquid completely, for subsequent use;
3) by truncated for the chain saw of two ends end to end of the dragon spruce veneer bolt chosen, atoleine in heating kettle two truncated terminations of brushing dragon spruce veneer bolt and cuticular breakdown place is repeatedly dipped in, until the paraffin oil solidified covers two truncated terminations and cuticular breakdown place completely with hairbrush;
4) the dragon spruce veneer bolt entrucking of Treating Cuttings with Paraffin Wax being crossed, notes handling with care in the process of loading-unloading vehicle, does not destroy the epidermis of dragon spruce veneer bolt as far as possible;
5) should start as early as possible after dragon spruce veneer bolt is transported to processing space to saw plate processing, as do not started processing as early as possible, dragon spruce veneer bolt should be put into Chu Muchi, weighting material makes it be immersed in completely under water; Water in Chu Muchi should often be changed, and the earth at the bottom of pond, bark and other impurity should regularly be removed, and keeps the clean of the wooden pool inner water of storage;
6) after dragon spruce veneer bolt is sawn into sheet material, the time of ventilating stacks should be short as much as possible, applies large stretch of Polypropylence Sheet hide as rainy weather, and it is dry to send into lumber kiln as early as possible;
7) in the dry run of dragon spruce sheet material, in order to ensure the dry mass of final dragon spruce sheet material, parting bead is spaced apart 30 ~ 40cm, and spacer material must select dragon spruce material of the same race, and the length of parting bead × wide × thick is 1400cm × 20cm × 20cm;
8) in the dry run of dragon spruce sheet material, in order to ensure the dry mass of final dragon spruce sheet material, select the low temperature drying technology that drying schedule is softer, and avoid using the spray that dragon spruce sheet material dry mass may be caused to decline to steam treatment process.
2. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: thoroughly strike off dragon spruce veneer bolt with hatchet in step 1) and cause the rotten of timber and variable color by cuticular breakdown, prevent it from expanding further in the scope of subsequent transportation process mesocuticle breakage foxiness and variable color.
3. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: in step 3) with the object at the two ends end to end of the truncated dragon spruce veneer bolt of chain saw be in order to thoroughly remove dragon spruce veneer bolt termination adheres to earth, bacterium, stone foreign material, prevent in dragon spruce veneer bolt transportation rotten stain fungus from invading dragon spruce inside further by the weak link of log termination.
4. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: in step 3), dip in atoleine in heating kettle two truncated terminations of brushing dragon spruce log and cuticular breakdown place repeatedly with hairbrush, until the object that the paraffin oil solidified covers two truncated terminations and cuticular breakdown place completely thoroughly completely cuts off air, prevent rotten stain fungus in dragon spruce veneer bolt transportation from invading sprucewood by the weak link on log inner.
5. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: note in step 4) handling with care in the process of dragon spruce log loading-unloading vehicle, the object as far as possible not destroying the epidermis of dragon spruce veneer bolt avoids, in dragon spruce veneer bolt transportation, causing the intrusion of rotten stain fungus because dragon spruce veneer bolt epidermis occurs new defect.
6. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: as the saw plate processing of dragon spruce veneer bolt can not be started as early as possible in step 5), dragon spruce veneer bolt should be put into Chu Muchi, weighting material makes the underwater object of its complete submergence be thoroughly completely cut off air, prevents dragon spruce veneer bolt because of for a long time cannot saw lumber and cause the intrusion of rotten stain fungus.
7. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: the water in step 5) in Chu Mu pond should often be changed, earth at the bottom of pond, bark and other impurity should regularly be removed, and keep the clean object of storing up wooden pool inner water to be prevent the muddy Chi Shui polluted from immersing dragon spruce veneer bolt inside and causing unnecessary loss.
8. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: after in step 6), dragon spruce veneer bolt is sawn into sheet material, the time of ventilating stacks should be short as much as possible, apply large stretch of Polypropylence Sheet as rainy weather to hide, and the object sending into lumber kiln drying as early as possible avoids because rotten stain fungus infects moist dragon spruce sheet material and causes unnecessary loss, the dragon spruce sheet material completing saw lumber operation must carry out drying processing in 48 hours.
9. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: in order to ensure the dry mass of final dragon spruce sheet material in step 7), parting bead is spaced apart 30 ~ 40cm, spacer material must select dragon spruce material of the same race, and length × wide × thick object for 1400cm × 20cm × 20cm of parting bead prevents dragon spruce sheet material from warpage occurring in dry run and produces the defect of interval blackstreak.
10. the mildew-proof treatment method in dragon spruce saw lumber process according to claim 1, it is characterized in that: the main cause that in step 8), spray steaming treatment process causes dragon spruce sheet material dry mass to decline is steamed in processing procedure in spray, a large amount of water vapours is trickled down at dragon spruce plate surface with the form of drop and is accumulated in around parting bead, in the lengthy procedure of the low temperature drying of whole dragon spruce sheet material, dragon spruce plate surface around parting bead forms ugly blackstreak, causes unnecessary loss to dragon spruce sheet material.
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Cited By (1)
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| CN105459243A (en) * | 2016-01-07 | 2016-04-06 | 福建农林大学 | Processing method of cedarwood furniture panels with white rot bacterial plaque |
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| CN104290157A (en) * | 2014-10-08 | 2015-01-21 | 苏州市相城区阳澄湖镇工耕堂家具工作室 | Fragrance-adding treating process for yellow pear wood |
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| CN105459243A (en) * | 2016-01-07 | 2016-04-06 | 福建农林大学 | Processing method of cedarwood furniture panels with white rot bacterial plaque |
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