CN107351207A - A kind of willow densification handling process - Google Patents
A kind of willow densification handling process Download PDFInfo
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- CN107351207A CN107351207A CN201710818026.0A CN201710818026A CN107351207A CN 107351207 A CN107351207 A CN 107351207A CN 201710818026 A CN201710818026 A CN 201710818026A CN 107351207 A CN107351207 A CN 107351207A
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- willow
- densification
- glutinous rice
- handling process
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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
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
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- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention relates to wood processing treatment technical field, and in particular to supplies a kind of willow densification handling process.Including following processing step, after glutinous rice soaks in water, feeding makes to boil in a covered pot over a slow fire steaming in autoclaving pot, obtained glutinous rice and water mixing are steamed by stewing, speed lapping disperses, filtration, obtain filtrate, electrolysis, obtain electrolyte, pending willow is sent into heating in vacuum room and is sufficiently submerged in after processing in electrolyte, immersion treatment, willow is dried into after falling rate drying period at 38 40 DEG C, carry out pressurization densification, remove willow remained on surface dirt, obtain densification willow, modified feedstock is made by former material of glutinous rice used by willow densification handling process of the present invention, cost is cheap, and do not have contaminative, the willow intensity level that densification handles to obtain is significantly improved, and compressibility is good, response rate is low after compression, with higher intensity and stability.
Description
Technical field
The present invention relates to wood processing treatment technical field, and in particular to supplies a kind of willow densification handling process.
Background technology
Willow is the most important quick growing species of trees in central plain area, although artificial willow woods has fast growing feature, its wood
Matter is loose, moisture content is high, dimensional stability is bad, causes current willow directly to utilize, to improve willow physics characteristic,
Carry out various processing to willow in academia to have reached common understanding, wherein being compressed willow processing to improve its physical mechanics
Performance is one of conventional means, is mainly improved using resin treatments such as low molecule PF, MF or by processing such as Cross-linked reactions
The density of timber, intensity and deformation are permanently fixed, at present commonly using modified cyanurotriamide resin as packing material,
It is real after being filled processing to willow under certain condition, then through special process to the timber progress hot compression processing after filling
Willow intensity and dimensional stability are now improved, although this handling process can improve the strength and stability of willow, is such as changed
The common resinae fillers such as property melmac easily give out the chemical substance unfavorable to human body.
The content of the invention
It is an object of the invention to provide a kind of willow densification handling process.
The technical solution adopted by the present invention is a kind of willow densification handling process, and processing step is as follows：
（1）After glutinous rice is soaked into 10-12 hours in water, feeding makes in autoclaving pot, in 100-105 DEG C of boiling temperature, steams
Steam pressure 0.6-0.65Kg, stewing steaming is carried out to glutinous rice, it is 50-55 minutes to boil in a covered pot over a slow fire the steaming time；
（2）Obtained glutinous rice is steamed with water by 1 by stewing:3.5-4 volume ratio mixes, and speed lapping disperses, and filters, and obtains filtrate,
Filtrate is electrolysed 20-25 minutes under 30-40r/min stir speed (S.S.), decomposition voltage 50-55V, Faradaic current 1.8-2A,
Obtain electrolyte；
（3）Pending willow is sent into heating in vacuum room, and processing to willow central temperature reaches 30-33 DEG C at 30-33 DEG C；
（4）Willow is sufficiently submerged in electrolyte, immersion treatment 70-80 minutes；
（5）Willow is dried into after falling rate drying period at 38-40 DEG C, carries out pressurization densification, hot pressing temperature 120-130
Degree Celsius, hot pressing to compression ratio no longer changes；
（6）Willow remained on surface dirt is removed, gas is done to willow moisture content in 12-15%, acquisition densification willow.
Preferably, after glutinous rice being soaked into 10 hours in water, feeding makes in autoclaving pot, in 105 DEG C of boiling temperature, steams
Steam pressure 0.6Kg, stewing steaming is carried out to glutinous rice, boil in a covered pot over a slow fire and steam the time for 55 minutes.
Preferably, decomposition voltage 50V, Faradaic current 2A.
Preferably, willow is dried into after falling rate drying period at 38 DEG C, carries out pressurization densification, hot pressing temperature is
120 degrees Celsius, hot pressing to compression ratio reaches 45-50%.
Beneficial effect of the present invention is that modified feedstock is using glutinous rice as original used by willow densification handling process of the present invention
Material is made, and cost is cheap, and does not have contaminative, and the willow intensity level that densification handles to obtain is significantly improved, and compresses
Property is good, and response rate is low after compression, has higher intensity and stability；
Specifically, glutinous rice mixes after stewing steam with water, speed lapping disperses, and gum components are fully dissolved out, and filtrate is through electrolysis
After processing, stabilising system can be formed and viscosity number significantly improves, being electrolysed fluid viscosity obtained by final is more than 42mPas（28 is Celsius
Degree）, storage period reaches 10 days, storage period electrolyte inside stable system, is not in be layered, deposited phenomenon；
Before willow immerses electrolyte, it is sent into heating in vacuum room, it is possible to increase the permeability of willow, the willow after processing are abundant
Immerse in electrolyte, immersion treatment 70-80 minutes, liquid hold-up is electrolysed in willow more than 43%；
Select willow to dry into after falling rate drying period, carry out densification processing of pressurizeing, it is possible to increase compression ratio, and significantly drop
Low response rate, improve the stability of densification willow.
Embodiment
Embodiment 1：A kind of willow densification handling process, processing step are as follows：
（1）After glutinous rice is soaked into 10 hours in water, feeding makes in autoclaving pot, in 100 DEG C of boiling temperature, steam pressure
0.6Kg, stewing steaming is carried out to glutinous rice, boil in a covered pot over a slow fire and steam the time for 50 minutes；
（2）Obtained glutinous rice is steamed with water by 1 by stewing:3.5 volume ratio mixes, and speed lapping disperses, and filters, and obtains filtrate, filter
Liquid is electrolysed 20 minutes, decomposition voltage 50V, Faradaic current 1.8A under 30r/min stir speed (S.S.), obtains electrolyte；
（3）Pending willow is sent into heating in vacuum room, and processing to willow central temperature reaches 30 DEG C at 30 DEG C；
（4）Willow is sufficiently submerged in electrolyte, immersion treatment 70 minutes；
（5）Willow is dried into after falling rate drying period at 38 DEG C, carries out pressurization densification, and hot pressing temperature is 120 degrees Celsius,
Hot pressing no longer changes to compression ratio；
（6）Willow remained on surface dirt is removed, gas is done to willow moisture content 12%, obtains densification willow.
Embodiment 2：A kind of willow densification handling process, processing step are as follows：
（1）After glutinous rice is soaked into 12 hours in water, feeding makes in autoclaving pot, in 105 DEG C of boiling temperature, steam pressure
0.65Kg, stewing steaming is carried out to glutinous rice, boil in a covered pot over a slow fire and steam the time for 55 minutes；
（2）Obtained glutinous rice is steamed with water by 1 by stewing:4 volume ratio mixes, and speed lapping disperses, and filters, and obtains filtrate, filtrate
It is electrolysed 25 minutes, decomposition voltage 55V, Faradaic current 2A under 40r/min stir speed (S.S.), obtains electrolyte；
（3）Pending willow is sent into heating in vacuum room, and processing to willow central temperature reaches 33 DEG C at 33 DEG C；
（4）Willow is sufficiently submerged in electrolyte, immersion treatment 80 minutes；
（5）Willow is dried into after falling rate drying period at 40 DEG C, carries out pressurization densification, and hot pressing temperature is 130 degrees Celsius,
Hot pressing no longer changes to compression ratio；
（6）Willow remained on surface dirt is removed, gas is done to willow moisture content 15%, obtains densification willow.
Embodiment 3：A kind of willow densification handling process, processing step are as follows：
（1）After glutinous rice is soaked into 11 hours in water, feeding makes in autoclaving pot, in 102 DEG C of boiling temperature, steam pressure
0.63Kg, stewing steaming is carried out to glutinous rice, boil in a covered pot over a slow fire and steam the time for 52 minutes；
（2）Obtained glutinous rice is steamed with water by 1 by stewing:3.8 volume ratio mixes, and speed lapping disperses, and filters, and obtains filtrate, filter
Liquid is electrolysed 24 minutes, decomposition voltage 52V, Faradaic current 1.9A under 32r/min stir speed (S.S.), obtains electrolyte；
（3）Pending willow is sent into heating in vacuum room, and processing to willow central temperature reaches 32 DEG C at 32 DEG C；
（4）Willow is sufficiently submerged in electrolyte, immersion treatment 75 minutes；
（5）Willow is dried into after falling rate drying period at 30 DEG C, carries out pressurization densification, and hot pressing temperature is 125 degrees Celsius,
Hot pressing no longer changes to compression ratio；
（6）Willow remained on surface dirt is removed, gas is done to willow moisture content 13%, obtains densification willow.
Below in conjunction with specific willow densification processing experiment, the present invention is further described：
Examination material is derived from Funan County side market town, is 6 years raw willows, and long 50cm juggle is intercepted at its breastheight 1.2cm, takes 3-6
For the timber of annual ring as examination material, examination material size is 30mm × 20mm × 20mm, and processing amounts to 3 groups, is divided into processing 1, processing 2, place
Reason 3, each processing repeat 2 examination materials；
Processing 1 is handled examination material according to the densification handling process of embodiment 3；
Processing 2 is cancelled and filtrate is electrolysed on the basis of embodiment 3；
Processing is dried to moisture content after 13% 3 on the basis of embodiment 3, by willow at 30 DEG C, then pressurize closely knit
Change；
Processing terminates, detection packet willow hot pressing compression ratio, response rate, and parallel-to-grain compressive strength compares increasing with untreated willow material
Width, MOR compare amplification with untreated willow material, as a result see the table below 1：
| Group | Willow hot pressing compression ratio | Response rate | Parallel-to-grain compressive strength compares amplification with untreated willow material | MOR compares amplification with untreated willow material |
| Processing 1 | 48 | 5.18 | 195.5 | 60.8 |
| Processing 2 | 42 | 18.7 | 112.6 | 52.8 |
| Processing 3 | 22 | 17 | 83.2 | 40.4 |
As seen from the above table, the willow parallel-to-grain compressive strength after the PROCESS FOR TREATMENT of embodiment 3, MOR are improved significantly, place
If be not electrolysed during reason to glutinous rice filtrate, the viscosity number of glutinous rice filtrate is inadequate, and response rate is higher after causing hot pressing, to most
Whole willow parallel-to-grain compressive strength, MOR also have certain influence；Directly willow is dried to moisture content 13% at 30 DEG C
Afterwards, then pressurization densification is carried out, hot pressing effect is simultaneously bad, and compression ratio is low, and willow parallel-to-grain compressive strength, MOR can not obtain
To effectively improving.
Claims (4)
1. a kind of willow densification handling process, it is characterised in that including following processing step：
（1）After glutinous rice is soaked into 10-12 hours in water, feeding makes in autoclaving pot, in 100-105 DEG C of boiling temperature, steams
Steam pressure 0.6-0.65Kg, stewing steaming is carried out to glutinous rice, it is 50-55 minutes to boil in a covered pot over a slow fire the steaming time；
（2）Obtained glutinous rice is steamed with water by 1 by stewing:3.5-4 volume ratio mixes, and speed lapping disperses, and filters, and obtains filtrate,
Filtrate is electrolysed 20-25 minutes under 30-40r/min stir speed (S.S.), decomposition voltage 50-55V, Faradaic current 1.8-2A,
Obtain electrolyte；
（3）Pending willow is sent into heating in vacuum room, and processing to willow central temperature reaches 30-33 DEG C at 30-33 DEG C；
（4）Willow is sufficiently submerged in electrolyte, immersion treatment 70-80 minutes；
（5）Willow is dried into after falling rate drying period at 38-40 DEG C, carries out pressurization densification, hot pressing temperature 120-130
Degree Celsius, hot pressing to compression ratio no longer changes；
（6）Willow remained on surface dirt is removed, obtains densification willow.
A kind of 2. willow densification handling process according to claim, it is characterised in that
After glutinous rice is soaked into 10 hours in water, feeding makes in autoclaving pot, in 105 DEG C of boiling temperature, steam pressure
0.6Kg, stewing steaming is carried out to glutinous rice, boil in a covered pot over a slow fire and steam the time for 55 minutes.
A kind of 3. willow densification handling process according to claim, it is characterised in that
Decomposition voltage is 50V, Faradaic current 2A.
A kind of 4. willow densification handling process according to claim, it is characterised in that
Willow is dried into after falling rate drying period at 38 DEG C, carries out pressurization densification, and hot pressing temperature is 120 degrees Celsius, heat
Compression ratio is depressed into no longer to change.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710818026.0A CN107351207A (en) | 2017-09-12 | 2017-09-12 | A kind of willow densification handling process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710818026.0A CN107351207A (en) | 2017-09-12 | 2017-09-12 | A kind of willow densification handling process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323122A (en) * | 2008-07-11 | 2008-12-17 | 王玉华 | Convenient chopsticks made from Conyza canadensis and processing technique |
| CN101870131A (en) * | 2009-04-27 | 2010-10-27 | 四川省青神县云华竹旅有限公司 | Process for manufacturing bamboo-woven products |
| CN102626940A (en) * | 2011-02-07 | 2012-08-08 | 刘锡丽 | Solid wood section improving method and sections improved thereby |
| RU2497662C1 (en) * | 2012-07-18 | 2013-11-10 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный архитектурно-строительный университет" (ВолгГАСУ) | Antiseptic fireproof composition for timber |
| CN104400867A (en) * | 2014-07-09 | 2015-03-11 | 江西省林业科学院 | Preparation method capable of reducing paulownia wood resilience after compression |
| CN107139303A (en) * | 2017-06-13 | 2017-09-08 | 安徽光世门业有限公司 | A kind of fire-proof and thermal-insulation pine Solid Door processing technology |
-
2017
- 2017-09-12 CN CN201710818026.0A patent/CN107351207A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323122A (en) * | 2008-07-11 | 2008-12-17 | 王玉华 | Convenient chopsticks made from Conyza canadensis and processing technique |
| CN101870131A (en) * | 2009-04-27 | 2010-10-27 | 四川省青神县云华竹旅有限公司 | Process for manufacturing bamboo-woven products |
| CN102626940A (en) * | 2011-02-07 | 2012-08-08 | 刘锡丽 | Solid wood section improving method and sections improved thereby |
| RU2497662C1 (en) * | 2012-07-18 | 2013-11-10 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный архитектурно-строительный университет" (ВолгГАСУ) | Antiseptic fireproof composition for timber |
| CN104400867A (en) * | 2014-07-09 | 2015-03-11 | 江西省林业科学院 | Preparation method capable of reducing paulownia wood resilience after compression |
| CN107139303A (en) * | 2017-06-13 | 2017-09-08 | 安徽光世门业有限公司 | A kind of fire-proof and thermal-insulation pine Solid Door processing technology |
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Application publication date: 20171117 |