CN107571361A - A kind of processing method for improving birch durability - Google Patents
A kind of processing method for improving birch durability Download PDFInfo
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- CN107571361A CN107571361A CN201710850865.0A CN201710850865A CN107571361A CN 107571361 A CN107571361 A CN 107571361A CN 201710850865 A CN201710850865 A CN 201710850865A CN 107571361 A CN107571361 A CN 107571361A
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Abstract
The invention mainly relates to woodwork processing technique field, discloses a kind of processing method for improving birch durability, including：Cutting, immersion, freeze, strengthen, drying；Method is simple, and the birch intensity and hardness after processing significantly improve, and increase the use range of birch, income is improved 18.6%；Split after birch section is removed the peel, be easy to post-processing uniform, improve treatment effeciency；Flitch is placed in impregnating fluid progress high temperature immersion, promotes impregnating fluid to penetrate into flitch, kills the miscellaneous bacteria remained in flitch and worm's ovum, avoid it is mouldy damage by worms, improve flitch antiseptic property；Impregnating fluid extracts for pure Chinese medicine, without any toxic reagent, avoids being detrimental to health during the processing and use of birch；Gradually reduce temperature after immersion to be freezed, moisture is changed into the crystallization water, increases the interfiber pore degree of birch, improves birch suppleness, then carries out low temperature drying, beneficial to absorption of the flitch to treatment fluid.
Description
Technical field
The invention mainly relates to woodwork processing technique field, more particularly to a kind of processing side for improving birch durability
Method.
Background technology
Birch is the common timber in China, filbert to bronzing, has glittering surface and smooth mechanism, and annual ring is bright
Aobvious, wooden body is pure thin, and slightly heavy hard, structure is thin, and mechanical strength is big, high resilience, but hygroscopicity is big, dries warpage easy to crack, no
Corrosion resistant, it is not wear-resisting, used more in the form of clamping plate, reduce the use value of birch.
The content of the invention
The defects of in order to make up prior art, it is an object of the invention to provide a kind of processing side for improving birch durability
Method.
A kind of processing method for improving birch durability, comprises the following steps：
（1）Cutting：Birch section is removed the peel, cut according to required size, is easy to post-processing uniform, improves processing effect
Rate, obtain flitch；
（2）Immersion：Flitch is placed in impregnating fluid, is soaked 2 ~ 3 hours in 60 ~ 65 DEG C, 33 ~ 35kHz ultrasounds, promotes impregnating fluid to ooze
Enter flitch, kill the miscellaneous bacteria remained in flitch and worm's ovum, avoid it is mouldy damage by worms, improve flitch antiseptic property, obtain immersion flitch；
（3）Freezing：It is -14 ~ -12 DEG C to adjust temperature, and immersion flitch is freezed 5 ~ 7 hours, then adjusts temperature as -35 ~ -33 DEG C,
Continue freezing 8 ~ 10 hours, moisture is changed into the crystallization water, increases the interfiber pore degree of birch, improves birch suppleness, solves naturally
Freeze, it is 24 ~ 26% that water content is dried in 85 ~ 90 DEG C, beneficial to absorption of the flitch to treatment fluid, obtains freezing flitch；
（4）Strengthen：Freezing flitch is placed in forced fluid, is soaked in vacuum 45 ~ 50 hours, promotes forced fluid uniformly to penetrate into flitch,
Forced fluid is that chitosan, nano titanium oxide and graphene oxide are added in acetum, by increasing capacitance it is possible to increase the intensity and light of flitch
Slippery, the hygroscopicity of flitch is reduced, it is in stable condition, warping and cracking is avoided, extends the service life of birch product, wood must be strengthened
Side；
（5）Dry：It is 56 ~ 58% that flitch, which will be strengthened, to be placed in 83 ~ 85 DEG C to be dried to water content, then reduces temperature to 68 ~ 70 DEG C, is dried
It is 7 ~ 9% to do to water content, keeps the intensity of flitch, avoids warping and cracking, improves processing and the performance of birch, obtain durable
Birch.
The step（2）Impregnating fluid, be made up of the raw material of following parts by weight：The achene of Siberian cocklebur 14 ~ 16, birch-bark 11 ~ 13, Chinese mugwort
Leaf 11 ~ 13, Chinese holly 11 ~ 13, climbing groundsel 7 ~ 9, withy 7 ~ 9, folium artemisiae argyi 6 ~ 8, garlic 6 ~ 8, after all raw materials are mixed, it is crushed to
Particle diameter is 40 ~ 80 mesh, adds the alcoholic solution that the volume fraction of all 40 ~ 60 times of amounts of raw material weight is 62 ~ 64%, 28 ~ 30kHz
Ultrasound 40 ~ 50 minutes, filtering, the water of 70 ~ 80 times of amounts of filter residue weight is added into filter residue, it is original 1/10 to decoct to volume,
Filtering, merges all filtrates, is concentrated into alcohol-free, obtains impregnating fluid, can keep the natural colored of birch, without any poisonous examination
Agent, avoid being detrimental to health during the processing and use of birch.
The step（4）Forced fluid, be made up of the raw material of following parts by weight：Chitosan 2.2 ~ 2.4, nano titanium oxide
1.1 ~ 1.3, graphene oxide 0.5 ~ 0.7, acetum 400 ~ 500, all raw materials are mixed, and are stirred to being well mixed, are obtained by force
Change liquid.
Described acetum, volume fraction are 1.2 ~ 1.4%.
The step（4）Vacuum, vacuum is -32 ~ -36MPa.
The durable birch that the processing method for improving birch durability is prepared.
It is an advantage of the invention that：The processing method provided by the invention for improving birch durability, method is simple, after processing
Birch intensity and hardness significantly improve, and increase the use range of birch, income is improved 18.6%；After birch section is removed the peel
Split, be easy to post-processing uniform, improve treatment effeciency；Flitch is placed in progress high temperature immersion in impregnating fluid, promoted anti-
Sanies penetrates into flitch, kills the miscellaneous bacteria that remains and worm's ovum in flitch, avoid it is mouldy damage by worms, improve flitch antiseptic property；Impregnating fluid
Extracted for pure Chinese medicine, the natural colored of birch can be kept, without any toxic reagent, during the processing and use of birch
Avoid being detrimental to health；Gradually reduce temperature after immersion to be freezed, moisture is changed into the crystallization water, increases hole between the fiber of birch
Porosity, birch suppleness is improved, then carry out low temperature drying, beneficial to absorption of the flitch to treatment fluid；Freezing flitch is placed in reinforcing
It is soaked in vacuum in liquid, promotes forced fluid uniformly to penetrate into flitch, forced fluid is that chitosan, nano-silica are added in acetum
Change titanium and graphene oxide, by increasing capacitance it is possible to increase the intensity and smoothness of flitch, the hygroscopicity of flitch is reduced, it is in stable condition, avoid sticking up
Song cracking, extend the service life of birch product；Low temperature drying is carried out after reinforcing stage by stage, keeps the intensity of flitch, avoids sticking up
Song cracking, improve processing and the performance of birch.
Embodiment
Illustrate the present invention with specific embodiment below.
Embodiment 1
A kind of processing method for improving birch durability, comprises the following steps：
（1）Cutting：Birch section is removed the peel, cut according to required size, is easy to post-processing uniform, improves processing effect
Rate, obtain flitch；
（2）Immersion：Flitch is placed in impregnating fluid, is soaked 2 hours in 60 DEG C, 33kHz ultrasounds, promotes impregnating fluid to penetrate into flitch,
Kill the miscellaneous bacteria that remains and worm's ovum in flitch, avoid it is mouldy damage by worms, improve flitch antiseptic property, obtain immersion flitch；Described is anti-
Sanies, it is made up of the raw material of following parts by weight：The achene of Siberian cocklebur 14, birch-bark 11, folium artemisiae argyi 11, Chinese holly 11, climbing groundsel 7, withy 7,
Folium artemisiae argyi 6, garlic 6, after all raw materials are mixed, it is 40 mesh to be crushed to particle diameter, adds the volume integral of all 40 times of amounts of raw material weight
Number is 62% alcoholic solution, 28kHz ultrasounds 40 minutes, filtering, the water of 70 times of amounts of filter residue weight is added into filter residue, is decocted extremely
Volume is original 1/10, filtering, merges all filtrates, is concentrated into alcohol-free, obtains impregnating fluid；
（3）Freezing：It is -14 DEG C to adjust temperature, and immersion flitch is freezed 5 hours, then adjusts temperature as -35 DEG C, and it is small to continue freezing 8
When, moisture is changed into the crystallization water, increases the interfiber pore degree of birch, improves birch suppleness, naturally to thaw, is dried in 85 DEG C
Water content is 24 ~ 26%, beneficial to absorption of the flitch to treatment fluid, obtains freezing flitch；
（4）Strengthen：Freezing flitch is placed in forced fluid, is soaked in vacuum 45 hours, vacuum is -32MPa, promotes forced fluid equal
Even infiltration flitch, forced fluid are that chitosan, nano titanium oxide and graphene oxide are added in acetum, by increasing capacitance it is possible to increase flitch
Intensity and smoothness, reduce the hygroscopicity of flitch, it is in stable condition, avoid warping and cracking, extend the service life of birch product,
Flitch must be strengthened；Described forced fluid, it is made up of the raw material of following parts by weight：Chitosan 2.2, nano titanium oxide 1.1, oxidation
Graphene 0.5, acetum 400, all raw materials are mixed, and are stirred to being well mixed, are obtained forced fluid；Described acetum,
Volume fraction is 1.2%；
（5）Dry：It is 56 ~ 58% that flitch, which will be strengthened, to be placed in 83 DEG C to be dried to water content, then reduces temperature to 68 DEG C, is dried to and contains
Water is 7 ~ 9%, keeps the intensity of flitch, avoids warping and cracking, improves processing and the performance of birch, obtain durable birch.
The durable birch that the processing method for improving birch durability is prepared.
Embodiment 2
A kind of processing method for improving birch durability, comprises the following steps：
（1）Cutting：Birch section is removed the peel, cut according to required size, is easy to post-processing uniform, improves processing effect
Rate, obtain flitch；
（2）Immersion：Flitch is placed in impregnating fluid, is soaked 2.5 hours in 63 DEG C, 34kHz ultrasounds, promotes impregnating fluid to penetrate into wood
Side, kill the miscellaneous bacteria that remains and worm's ovum in flitch, avoid it is mouldy damage by worms, improve flitch antiseptic property, obtain immersion flitch；Described
Impregnating fluid, it is made up of the raw material of following parts by weight：The achene of Siberian cocklebur 15, birch-bark 12, folium artemisiae argyi 12, Chinese holly 12, climbing groundsel 8, withy
8th, folium artemisiae argyi 7, garlic 7, after all raw materials are mixed, it is 60 mesh to be crushed to particle diameter, adds the volume of all 50 times of amounts of raw material weight
Fraction is 63% alcoholic solution, 29kHz ultrasounds 45 minutes, filtering, the water of 75 times of amounts of filter residue weight is added into filter residue, is decocted
It is original 1/10 to volume, filtering, merges all filtrates, be concentrated into alcohol-free, obtains impregnating fluid；
（3）Freezing：It is -13 DEG C to adjust temperature, and immersion flitch is freezed 6 hours, then adjusts temperature as -34 DEG C, and it is small to continue freezing 9
When, moisture is changed into the crystallization water, increases the interfiber pore degree of birch, improves birch suppleness, naturally to thaw, is dried in 88 DEG C
Water content is 24 ~ 26%, beneficial to absorption of the flitch to treatment fluid, obtains freezing flitch；
（4）Strengthen：Freezing flitch is placed in forced fluid, is soaked in vacuum 48 hours, vacuum is -34MPa, promotes forced fluid equal
Even infiltration flitch, forced fluid are that chitosan, nano titanium oxide and graphene oxide are added in acetum, by increasing capacitance it is possible to increase flitch
Intensity and smoothness, reduce the hygroscopicity of flitch, it is in stable condition, avoid warping and cracking, extend the service life of birch product,
Flitch must be strengthened；Described forced fluid, it is made up of the raw material of following parts by weight：Chitosan 2.3, nano titanium oxide 1.2, oxidation
Graphene 0.6, acetum 450, all raw materials are mixed, and are stirred to being well mixed, are obtained forced fluid；Described acetum,
Volume fraction is 1.3%；
（5）Dry：It is 56 ~ 58% that flitch, which will be strengthened, to be placed in 84 DEG C to be dried to water content, then reduces temperature to 69 DEG C, is dried to and contains
Water is 7 ~ 9%, keeps the intensity of flitch, avoids warping and cracking, improves processing and the performance of birch, obtain durable birch.
The durable birch that the processing method for improving birch durability is prepared.
Embodiment 3
A kind of processing method for improving birch durability, comprises the following steps：
（1）Cutting：Birch section is removed the peel, cut according to required size, is easy to post-processing uniform, improves processing effect
Rate, obtain flitch；
（2）Immersion：Flitch is placed in impregnating fluid, is soaked 3 hours in 65 DEG C, 35kHz ultrasounds, promotes impregnating fluid to penetrate into flitch,
Kill the miscellaneous bacteria that remains and worm's ovum in flitch, avoid it is mouldy damage by worms, improve flitch antiseptic property, obtain immersion flitch；Described is anti-
Sanies, it is made up of the raw material of following parts by weight：The achene of Siberian cocklebur 16, birch-bark 13, folium artemisiae argyi 13, Chinese holly 13, climbing groundsel 9, withy 9,
Folium artemisiae argyi 8, garlic 8, after all raw materials are mixed, it is 80 mesh to be crushed to particle diameter, adds the volume integral of all 60 times of amounts of raw material weight
Number is 64% alcoholic solution, 30kHz ultrasounds 50 minutes, filtering, the water of 80 times of amounts of filter residue weight is added into filter residue, is decocted extremely
Volume is original 1/10, filtering, merges all filtrates, is concentrated into alcohol-free, obtains impregnating fluid；
（3）Freezing：It is -12 DEG C to adjust temperature, and immersion flitch is freezed 7 hours, then adjusts temperature as -33 DEG C, continues freezing 10
Hour, moisture is changed into the crystallization water, increases the interfiber pore degree of birch, improves birch suppleness, naturally to thaw, in 90 DEG C of drying
It is 24 ~ 26% to water content, beneficial to absorption of the flitch to treatment fluid, obtains freezing flitch；
（4）Strengthen：Freezing flitch is placed in forced fluid, is soaked in vacuum 50 hours, vacuum is -36MPa, promotes forced fluid equal
Even infiltration flitch, forced fluid are that chitosan, nano titanium oxide and graphene oxide are added in acetum, by increasing capacitance it is possible to increase flitch
Intensity and smoothness, reduce the hygroscopicity of flitch, it is in stable condition, avoid warping and cracking, extend the service life of birch product,
Flitch must be strengthened；Described forced fluid, it is made up of the raw material of following parts by weight：Chitosan 2.4, nano titanium oxide 1.3, oxidation
Graphene 0.7, acetum 500, all raw materials are mixed, and are stirred to being well mixed, are obtained forced fluid；Described acetum,
Volume fraction is 1.4%；
（5）Dry：It is 56 ~ 58% that flitch, which will be strengthened, to be placed in 85 DEG C to be dried to water content, then reduces temperature to 70 DEG C, is dried to and contains
Water is 7 ~ 9%, keeps the intensity of flitch, avoids warping and cracking, improves processing and the performance of birch, obtain durable birch.
The durable birch that the processing method for improving birch durability is prepared.
Comparative example 1
Step（2）In impregnating fluid be changed to water, remaining method, with embodiment 1.
Comparative example 2
Removal step（3）, remaining method, with embodiment 1.
Comparative example 3
Removal step（4）In forced fluid in chitosan, remaining method, with embodiment 1.
Comparative example 4
Removal step（4）In forced fluid in nano titanium oxide, remaining method, with embodiment 1.
Comparative example 5
Removal step（4）In forced fluid in graphene oxide, remaining method, with embodiment 1.
Comparative example 6
Removal step（4）In vacuum, remaining method, with embodiment 1.
Comparative example 7
Step（5）In water content is directly dried in 130 DEG C as 7 ~ 9%, remaining method, with embodiment 1.
The treatment effect of embodiment and comparative example birch processing method：
By birch section cut into length be 50cm, width 4cm, be highly 2cm flitch 55, be randomly divided into 11 groups, every group 5
Bar, respectively embodiment group, comparative example group and control group, each group are handled according to the processing method of the group respectively, are made final
Water content is 8%, and for control group without processing, direct Exposure to Sunlight to water content is 8%, detects modulus of elasticity, the rift grain of each group flitch
Compression strength and bending strength, results averaged, and mould is inoculated with to the flitch after each group processing, according to " carrying silver-colored chitosan
Preparation and its research to veneer antimicrobial treatment, the anti-microbial property of Huang Siqi " method detection each group flitch, embodiment and right
The treatment effect of ratio birch processing method is shown in Table 1.
Table 1：The treatment effect of embodiment and comparative example birch processing method
| Project | Modulus of elasticity/(GPa) | Parallel-to-grain compressive strength/(MPa) | Bending strength/(MPa) | Antibiotic rate/(%) |
| Embodiment 1 | 17.3 | 28.5 | 31.4 | 63.1 |
| Embodiment 2 | 17.6 | 28.7 | 31.7 | 63.4 |
| Embodiment 3 | 17.4 | 28.4 | 31.5 | 63.2 |
| Comparative example 1 | 15.8 | 24.3 | 23.6 | 42.8 |
| Comparative example 2 | 16.3 | 26.6 | 28.5 | 59.3 |
| Comparative example 3 | 13.1 | 22.2 | 23.1 | 53.7 |
| Comparative example 4 | 12.6 | 20.5 | 21.7 | 54.6 |
| Comparative example 5 | 12.3 | 20.1 | 21.4 | 55.3 |
| Comparative example 6 | 12.9 | 21.4 | 22.6 | 55.9 |
| Comparative example 7 | 15.8 | 25.7 | 28.9 | 56.3 |
| Control group | 10.7 | 17.4 | 19.7 | 25.3 |
Show from the result of table 1, the durable birch that the processing method of the raising birch durability of embodiment obtains, modulus of elasticity,
Parallel-to-grain compressive strength and bending strength are significantly greater than comparative example and control group, and intensity significantly improves, and antibiotic rate substantially relatively contrasts
Example and control group are high, can effective Antimicrobial preservative, increase the service life, illustrate the place provided by the invention for improving birch durability
Reason method has good treatment effect.
Claims (6)
1. a kind of processing method for improving birch durability, it is characterised in that comprise the following steps：
（1）Cutting：Birch section is removed the peel, is cut according to required size, obtains flitch；
（2）Immersion：Flitch is placed in impregnating fluid, is soaked 2 ~ 3 hours in 60 ~ 65 DEG C, 33 ~ 35kHz ultrasounds, obtains immersion flitch；
（3）Freezing：It is -14 ~ -12 DEG C to adjust temperature, and immersion flitch is freezed 5 ~ 7 hours, then adjusts temperature as -35 ~ -33 DEG C,
Continue freezing 8 ~ 10 hours, naturally to thaw, it is 24 ~ 26% that water content is dried in 85 ~ 90 DEG C, obtains freezing flitch；
（4）Strengthen：Freezing flitch is placed in forced fluid, is soaked in vacuum 45 ~ 50 hours, obtains reinforcing flitch；
（5）Dry：It is 56 ~ 58% that flitch, which will be strengthened, to be placed in 83 ~ 85 DEG C to be dried to water content, then reduces temperature to 68 ~ 70 DEG C, is dried
It is 7 ~ 9% to do to water content, obtains durable birch.
2. the processing method of birch durability is improved according to claim 1, it is characterised in that the step（2）Anti-corrosion
Liquid, it is made up of the raw material of following parts by weight：The achene of Siberian cocklebur 14 ~ 16, birch-bark 11 ~ 13, folium artemisiae argyi 11 ~ 13, Chinese holly 11 ~ 13, a thousand li
Light 7 ~ 9, withy 7 ~ 9, folium artemisiae argyi 6 ~ 8, garlic 6 ~ 8, after all raw materials are mixed, it is 40 ~ 80 mesh to be crushed to particle diameter, adds all originals
The alcoholic solution that the volume fraction for expecting 40 ~ 60 times of amounts of weight is 62 ~ 64%, 28 ~ 30kHz ultrasounds 40 ~ 50 minutes, filtering, to filter residue
The middle water for adding 70 ~ 80 times of amounts of filter residue weight, it is original 1/10 to decoct to volume, filtering, merges all filtrates, is concentrated into nothing
Alcohol, obtain impregnating fluid.
3. the processing method of birch durability is improved according to claim 1, it is characterised in that the step（4）Reinforcing
Liquid, it is made up of the raw material of following parts by weight：Chitosan 2.2 ~ 2.4, nano titanium oxide 1.1 ~ 1.3, graphene oxide 0.5 ~
0.7th, acetum 400 ~ 500, all raw materials are mixed, stirs to being well mixed, obtain forced fluid.
4. the processing method of birch durability is improved according to claim 3, it is characterised in that described acetum, body
Fraction is 1.2 ~ 1.4%.
5. the processing method of birch durability is improved according to claim 1, it is characterised in that the step（4）Vacuum,
Vacuum is -32 ~ -36MPa.
6. the durable birch that a kind of any one of claim 1 ~ 5 processing method for improving birch durability is prepared.
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| CN108556101A (en) * | 2018-05-22 | 2018-09-21 | 天长市双丰文化用品有限公司 | A kind of timber pretreating process for easel |
| CN108672240A (en) * | 2018-05-22 | 2018-10-19 | 天长市双丰文化用品有限公司 | A kind of spraying process of wood surface |
| CN108789704A (en) * | 2018-09-18 | 2018-11-13 | 章之野 | A kind of desk with the effect that refreshes the mind |
| CN108858590A (en) * | 2018-08-06 | 2018-11-23 | 安徽三和工艺品有限公司 | A kind of plank mildew and insect proof treatment fluid |
| CN111216210A (en) * | 2019-12-18 | 2020-06-02 | 湖州练市双建木业有限公司 | Wood processing production process |
| CN111308057A (en) * | 2019-11-04 | 2020-06-19 | 内蒙古农业大学 | Method for determining wood section processing conditions for veneer cutting and evaluating processing effect |
| CN112494605A (en) * | 2021-01-12 | 2021-03-16 | 庐江县天地禾生物技术有限公司 | Processing method of medicinal dendrobium officinale |
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| CN108556101A (en) * | 2018-05-22 | 2018-09-21 | 天长市双丰文化用品有限公司 | A kind of timber pretreating process for easel |
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| CN108858590A (en) * | 2018-08-06 | 2018-11-23 | 安徽三和工艺品有限公司 | A kind of plank mildew and insect proof treatment fluid |
| CN108789704A (en) * | 2018-09-18 | 2018-11-13 | 章之野 | A kind of desk with the effect that refreshes the mind |
| CN111308057A (en) * | 2019-11-04 | 2020-06-19 | 内蒙古农业大学 | Method for determining wood section processing conditions for veneer cutting and evaluating processing effect |
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| CN111216210A (en) * | 2019-12-18 | 2020-06-02 | 湖州练市双建木业有限公司 | Wood processing production process |
| CN112494605A (en) * | 2021-01-12 | 2021-03-16 | 庐江县天地禾生物技术有限公司 | Processing method of medicinal dendrobium officinale |
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Application publication date: 20180112 |