CN107363956A - Steel plate is modified the construction technology of quick growth poplar wood - Google Patents
Steel plate is modified the construction technology of quick growth poplar wood Download PDFInfo
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- CN107363956A CN107363956A CN201710805570.1A CN201710805570A CN107363956A CN 107363956 A CN107363956 A CN 107363956A CN 201710805570 A CN201710805570 A CN 201710805570A CN 107363956 A CN107363956 A CN 107363956A
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- sheet material
- steel plate
- modified
- quick growth
- poplar wood
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- 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
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- 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
-
- 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
- B27K3/0271—Vapour phase impregnation
-
- 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
-
- 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
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention belongs to fast growing wood technical field of modification, more particularly to a kind of steel plate to be modified the construction technology of quick growth poplar wood.Including following effective procedure：A, selection；B, cut；C, depths is managed；D, dry；E, heat modification；F, dry；G, cut；H, configuration structure glue；I, impregnate；J, combine；K, conserve.Compared with prior art, the advantages and positive effects of the present invention are, the invention provides the construction technology that a kind of steel plate is modified quick growth poplar wood, processing is modified to the methods of quick growth poplar wood processing, bonding, maintenance, precompressed, post processing by steel plate, structure glue and a series of construction technologies, and then change the mechanical properties such as the compression strength of quick growth poplar wood, modulus of elasticity, deformation rate, anti-seismic performance, it is allowed to the requirement for meeting building structural element (post, beam, plate, wall).
Description
Technical field
The invention belongs to fast growing wood technical field of modification, is related to quick growth poplar wood modification, more particularly to a kind of steel plate is modified
The construction technology of quick growth poplar wood.
Background technology
Timber and wood materials are not only widely used in daily life as the important resources of production in social and economic construction
In every field, be also widely used for the industrial circles such as traffic, building and space flight.With in world wide, the forest reserves are increasingly
Shortage, particularly precious timber quantity increasingly fall sharply, and substantial amounts of fast growing tree is widely cultivated in recent years.Fast growing tree has
The advantages that material time is short, yield is high, but because its growth year is shorter, such as：General artificial quick growth poplar wood become a useful person the time for 5~
6 years, thus most of fast growing tree have low density, wooden soft, physical mechanics intensity difference, moisture content high and skewness and
The defects of dry-shrinkage deformed is also easy to produce, so as to limit the use range of fast growing tree kind, generally artificial fast-growing woods uses next life
The low economic value added product such as paper pulp, throwaway chopsticks is produced, and the application in high added value manufacture field is less.
As country promulgates that relevant policies carry out green building, fabricated construction energetically, and hereof it should be particularly mentioned that closing
In the timber structure prefabricated construction the problem of.But nowadays the development of timber structure is because natural timber is forbidden felling and being limited
System.Most of artificial material is but because its poor application of mechanical property is restricted.Quick growth poplar wood has that texture is straight, Yi Jia in itself
The features such as work, growth are soon, environmental suitability is strong, and with the advantage such as environmentally friendly, attractive in appearance, and there is extensive planting matrix in China
Plinth.But quick growth poplar wood is because its mechanical property is relatively low, the features such as corrosion resistance difference and big unstability, never apply
In building structure.At present, how quick growth poplar wood to be applied in building structural element by steel plate modification, widens it and apply model
The research enclosed is less.
The content of the invention
The present invention is directed to the above-mentioned technical problem being applied to quick growth poplar wood in the presence of building structural element, proposes one
Kind is reasonable in design, technique is simple, easy to process and physical strength is high, the construction technology of resistance to rotten steel plate modification quick growth poplar wood.
In order to achieve the above object, the technical solution adopted by the present invention is that the present invention provides a kind of steel plate and is modified Fast growth poplar
The construction technology of wood, including following effective procedure：
A, selection：Logical straight, the tree-walk 20cm of quick growth poplar wood trunk or so log is chosen, and is put in shady place placement；
B, cut：The quick growth poplar wood chosen is cut into the sheet material that thickness is 10mm, rejects the sheet material for being unsatisfactory for requiring, place
It is size needed for component to manage plate length and width；
C, depths is managed：The sheet material handled well is subjected to deep processing processing, groove processing is done in plate surface；
D, dry：Sheet material after deep processing is handled is put in shady place and dried 3-5 days or using dryer at 65 DEG C -85 DEG C
Lower drying more than the 8h of effect；
E, heat modification：Sheet material after will be treated is put in nitrogen chamber, and nitrogen at elevated temperature room temperature is to 180 DEG C~260 DEG C
Heat modification processing is done to sheet material；
F, dry：Sheet material drying baker after heat modification is handled dries more than 24h at 105 DEG C, carries out water ratio test
Test, control moisture content are standby between 9~15%；
G, cut：Correspondingly sized steel plate is cut according to the size of sheet material upper groove, it is standby；
H, configuration structure glue：The structure glue includes being used for the carbon cloth glue for impregnating poplar and the steel plate for being bonded steel plate
Glue, the carbon cloth glue include two groups of important components of A, B, wherein, A groups are modified epoxy, and B groups are the phenolic aldehyde that ethylenediamine is modified
The intermixture of ammonia curing agent and aromatic amine curing agent, according to mass ratio A:B=3：1, the component of A, B two is well mixed, it is standby；Institute
Stating steel plate glue includes two groups of important components of C, B, wherein, C groups are acrylic modified epoxy resin, according to mass ratio C:B=3：1,
The component of C, B two is well mixed, it is standby；
I, impregnate：Sheet material after drying is put into vacuum impregnation tank, adds the carbon cloth glue configured, controls Vaccum Permeating
Stain tank is 1MPa, controls 75 DEG C of temperature, impregnates 3h；
J, combine：Sheet material after dipping is taken out, the carbon cloth glue of plate surface is quickly scraped off, will be cut in g steps
Steel plate be quickly coated to by steel plate glue in the groove of sheet material, and separately take one block of sheet material, cover its corresponding groove
On steel plate, the groove between two plates and steel plate is set to cooperatively form an entirety, the rest may be inferred, combines required thickness
Degree；
K, conserve：By the sheet material mould combined by plate compact, control temperature is at 40~50 DEG C, curing time 1
The time of~2 weeks, that is, obtain required finished product.
Preferably, in the step c, long side direction of the groove along sheet material is arranged at intervals.
Preferably, in the step c, the groove is staggered along the short side direction of sheet material.
Preferably, in the step c, the groove is along sheet material short side direction at least provided with three row.
Preferably, in the step e, the sheet material after treating first is put in nitrogen chamber, then nitrogen at elevated temperature
Room temperature starts to inject nitrogen, control temperature is incubated 2h at 180 DEG C~260 DEG C, is then shut off nitrogen injection, closes to 140 DEG C
Temperature control is closed, after placement makes nitrogen room temperature be down to 40 DEG C, sheet material is taken out.
Preferably, phenolic aldehyde ammonia curing agent and aromatic amine curing agent that the B component ethylenediamine is modified are according to mass ratio 1:2
~5 ratio mixing.
Preferably, in the i steps, sheet material is put into vacuum impregnation tank first, then with vavuum pump by vacuum
Impregnating autoclave is pumped into -0.2MPa vacuum, then turns on imported valve, and carbon cloth glue is pressed into vacuum impregnation tank using atmospheric pressure
It is interior, after carbon cloth glue submerges sheet material, vacuum impregnation tank is transferred to 1MPa, controls 75 DEG C of temperature, impregnates 3h.
Compared with prior art, the advantages and positive effects of the present invention are：
The invention provides the construction technology that a kind of steel plate is modified quick growth poplar wood, pass through steel plate, structure glue and a series of
Construction technology is modified processing to the methods of quick growth poplar wood processing, bonding, maintenance, precompressed, post processing, and then changes Fast growth poplar
Compression strength, modulus of elasticity, deformation rate, the mechanical property such as anti-seismic performance of wood, be allowed to meet building structural element (post, beam,
Plate, wall) requirement.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without having to pay creative labor, it can also be obtained according to these accompanying drawings other
Accompanying drawing.
Fig. 1 is the structural representation for the sheet material deep processing that embodiment 1 provides；
Fig. 2 is the profile for the finished product that embodiment 1 provides；
Fig. 3 is the structural representation for the sheet material deep processing that embodiment 2 provides；
More than in each figure, 1, sheet material；2nd, groove；3rd, steel plate.
Embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, with reference to the accompanying drawings and examples
The present invention will be further described.It should be noted that in the case where not conflicting, in embodiments herein and embodiment
Feature can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other modes described here are different from, therefore, the present invention is not limited to the specific of specification described below
The limitation of embodiment.
Embodiment 1, as shown in Figure 1 and Figure 2, the present embodiment provide the construction technology that a kind of steel plate is modified quick growth poplar wood, including
Following effective procedure：
First, selection, it is contemplated that the modification quick growth poplar wood that the present embodiment is provided is used in building, therefore in this implementation
In, the selection of material also functions to vital effect to the intensity of later stage finished product, first, choose quick growth poplar wood trunk it is logical it is straight,
Tree-walk 20cm or so log, and shady place placement is put in, lead to straight poplar from trunk mainly leads to straight poplar in view of trunk
It is more convenient in processing for wood, is mainly in view of from tree-walk 20cm or so log needed for the present embodiment construction, and places
Shady place is set, primarily to avoiding being exposed to the sun, is caused the cracking of poplar, is influenceed its intensity.
Then, the quick growth poplar wood chosen is cut into the sheet material 1 that thickness is 10mm, rejects the sheet material for being unsatisfactory for requiring, place
It is size needed for component to manage plate length and width, in the present embodiment, it is necessary to which the length 2400mm of configuration, width are 140mm sheet material,
If the length and width of sheet material is unable to reach corresponding size, the size of required sheet material can be obtained by cohesive mode, is glued
Become the conventional means of existing fast-growing sheet material, therefore in the present embodiment, without detailed description.The sheet material 1 handled well is entered
Row deep processing is handled, and is done groove 2 on the surface of sheet material 1 and is set, in the present embodiment, groove 2 is set along the long side direction interval of sheet material 1
Put, i.e., timber, groove, the structure setting of timber are formed on sheet material, in order to further increase the intensity after finished product, in this reality
Apply in example, groove 2 is staggered along the short side direction of sheet material 1, i.e., forms crisscross layout in the upper groove 2 of sheet material 1, each recessed
All wrapped up around groove 2 by sheet material, the groove between adjacent two plates is symmetrically arranged, is so placed in groove 2
Steel plate 3, the effect that the steel plate 3 in groove 2 forms key is allowed for, increase the intensity of finished product.
In order to further improve the intensity of finished product, groove is along sheet material short side direction at least provided with three row, such setting, energy
Enough increase staggeredly area of the groove on sheet material, and then increase bulk strength, in the present embodiment, there is provided three row altogether.
In order to further increase the intensity of sheet material, the moisture of sheet material is removed, the sheet material after deep processing is handled is put in cool place
Place dries 3~5 days or more than 8h is dried under 65 DEG C~85 DEG C effects using dryer, carries out removing water process, the mesh so done
, moisture is slowly evaporated from sheet material, avoid moisture from being quickly lost in, cause the cracking of sheet material.
Then, the sheet material after will be treated is put in nitrogen chamber, and nitrogen at elevated temperature room temperature is to 180 DEG C~260 DEG C to plate
Material does heat modification processing, and content of cellulose is about the 40%~50% of lignocellulose raw material in poplar, and cellulose is D-Glucose
The chain-like macromolecule compound that β-Isosorbide-5-Nitrae glycosidic bond links up, the degree of polymerization of cellulose are wooden from hundreds to thousands even more than 10,000
Content of cellulose and property in material cell membrane are the important factor in order of Wood mechanical property, and hemicellulose is the same as cellulose one
Sample is polysaccharide, but hemicellulose is not homogeneous glycan, but the composition of a variety of complex plycans, and general hemicellulose gathers
Right is 200 to 300, and the arrangement of hemicellulose is more loose, can form crystal region unit, have in hemicellulose structure more
Hydrophilic group key (predominantly hydroxyl and carbonyl), therefore there is larger shadow to the bulking performance equidimension stability of wood cell wall
Ring, hemicellulose is amorphous in usual hemicellulose compared with the hydroxyl in cellulose as the adhesive in wood components
Contain substantial amounts of hydroxyl in area, these hydroxyl heat endurances are poor, easily decompose at high temperature, make the toughness of timber increase, right
The viscoplasticity of timber has important influence, in order to improve the intensity of sheet material, in the present embodiment, first carries out hot place to timber
Reason, specifically, the sheet material after treating are put in nitrogen chamber, and then nitrogen at elevated temperature room temperature starts to inject to 140 DEG C
Nitrogen, control temperature are incubated 2h at 180 DEG C~260 DEG C, are then shut off nitrogen injection, closing temperature control, and placement makes nitrogen chamber
After temperature is down to 40 DEG C, sheet material is taken out, you can complete the heat treatment step of sheet material, heat treatment step effectively raises sheet material
Toughness, and then improve its intensity.
In order to further remove moisture, in the present embodiment, the sheet material drying baker after heat modification is handled is in 105 DEG C of bakings
Dry more than 24h, water ratio test test is carried out, control moisture content is standby between 9~15%, if the water content mistake of timber
Height, very big influence be present to its later strength, therefore, the water content of timber must be controlled, in the present embodiment, control
Moisture content, certainly can be with 9~15% 12%.
In order to further strengthen its intensity, in the present embodiment, cut according to the size of sheet material upper groove corresponding big
Small steel plate, in the present embodiment, tension, shearing resistance and seismic hardening of the steel plate for sheet material, the cooperation of steel plate and quick growth poplar wood,
Effectively raise poplar finished product it is integral after intensity, it is met construction timber needs.
In order to further improve the using effect of steel plate, in the present embodiment, the corresponding structure glue of special configuration, knot are gone back
Structure glue includes the carbon cloth glue for being used for poplar dipping and the steel plate glue for being bonded steel plate, wherein, carbon cloth glue includes two groups of weights of A, B
Component is wanted, A groups are modified epoxy, and the modified epoxy that the present embodiment is provided is included 90 parts of epoxy by mass fraction
Resin, 16.2 parts of carboxylic acrylonitrile butadiene rubber latexs, 6 parts of polyacrylic ester latexs, 7 parts of silica flours, 1.3 parts of alumina silicate, 2.5 portions of anti-settling agents,
35 parts of polyamide curing agents and 1.1 parts of gamma-aminopropyl-triethoxy-silanes are made；Specific processing method is by carboxylic acrylonitrile butadiene rubber latex
After demulsification, it is dried for standby；After polyacrylic ester latex is demulsified, it is dried for standby；Carboxylic acrylonitrile butadiene rubber latex after drying is added to
In epoxy resin, 2h is reacted under conditions of being 120 DEG C in temperature, sequentially adds polyacrylic ester latex and γ-ammonia after drying
Propyl-triethoxysilicane, 1h is reacted under conditions of being 120 DEG C in temperature, obtained under normal temperature as the ring for the thick liquid that can be trickled
Oxygen tree fat；Anti-settling agent, alumina silicate and silica flour are finally sequentially added in the epoxy resin of thick liquid, after stirring 40min, i.e.,
Obtain A group component modified epoxy resin.
B groups are the intermixture of the phenolic aldehyde ammonia curing agent that ethylenediamine is modified and aromatic amine curing agent, specifically, B component second
The phenolic aldehyde ammonia curing agent and aromatic amine curing agent that diamines is modified are according to mass ratio 1:2~5 ratio mixes, in the present embodiment
In, match as 1:2, the amount of aromatic amine curing agent mainly needs to set according to FUTURE ENVIRONMENT, such as, northern weather, according to
1:2, the weather of the moist more heat in south, to reach 1:5, wherein, the phenolic aldehyde ammonia curing agent and fragrance that ethylenediamine is modified
Amine hardener provides by celebrating Da Feng engineering technology Co., Ltd, then, according to mass ratio A:B=3：1 ratio, by A, B two
Component is well mixed, standby.
Steel plate glue includes two groups of important components of C, B, and B component is consistent with the B component of carbon cloth glue, and C groups are acrylic acid modified ring
Oxygen tree fat, the acrylic modified epoxy resin that the present embodiment is provided take 30 parts of Bisphenol F diglycidyl ether, first by mass fraction
5 parts of base methyl acrylate, 5 parts of EMA, 6 parts of methacrylic acid, 4 parts of styrene, 1 part of lauryl methacrylate
After being mixed, under protective gas atmosphere under 90 DEG C of oil bath temperatures, the BPO accelerator of 0.5 mass fraction of addition is reacted,
Terminate to exothermic heat of reaction, produce the epoxy resin and acrylic copolymer of graft polymerization, then, in the asphalt mixtures modified by epoxy resin to graft polymerization
In fat and acrylic copolymer add particle diameter be 800~1000 mesh 5 parts of coarse whiting, particle diameter be 800~5000 4 parts of kaolin,
Particle diameter is 2000~8,000 10 parts of active fine particle calcium carbonate, and thick liquid is obtained after being uniformly mixed, and as C component acrylics are modified
Epoxy resin, then, according to mass ratio C:B=3：1, the component of C, B two is well mixed, it is standby.
Then, the sheet material after drying is put into vacuum impregnation tank, adds the carbon cloth glue configured, control vacuum impregnation
Tank is 1MPa, controls 75 DEG C of temperature, impregnates 3h, controls 75 DEG C of temperature primarily to avoiding prepared carbon cloth from being gelled admittedly, and
The mode of immersion is selected, it is a kind of porous capillary materials to be primarily due to quick growth poplar wood, by various permanent tubular unit (skilful hairs
Tubule) and a kind of composite capillary system for being connected with each other of instantaneous tubulose unit (microcapillary), so timber has one
Fixed permeability, vacuum impregnation are exactly to utilize this feature, and by physics mode, a certain amount of carbon cloth glue is impregnated into timber
Portion, the performances such as density of wood, physical mechanics intensity, heat resistance and antiseptic fire-retardation are improved by filling, in the present embodiment, are
Reach vacuum-impregnated purpose, first sheet material is put into vacuum impregnation tank, be then pumped into vacuum impregnation tank with vavuum pump-
0.2MPa vacuum, then turns on imported valve, and carbon cloth glue is pressed into vacuum impregnation tank using atmospheric pressure, treats that carbon cloth glue soaks
After not having sheet material, vacuum impregnation tank is transferred to 1MPa, controls 75 DEG C of temperature, 3h is impregnated, in the present embodiment, from carbon cloth glue conduct
It is preferable relative to the mobility of steel plate glue that dipping glue is mainly in view of carbon cloth glue, and for carbon cloth glue, steel plate glue is more viscous
It is thicker.
Sheet material 1 after dipping is taken out, quickly scrapes off the carbon cloth glue on the surface of sheet material 1, the steel plate 3 cut is passed through into steel
Plate glue is quickly coated in the groove 2 of sheet material 1, and separately takes one block of sheet material 1, and the groove 2 for making its corresponding is sleeved on steel plate 3
On, so, allow for steel plate 3 and play a part of key between two plates 1, so, cooperatively formed between sheet material 1 and steel plate 3
One entirety, the rest may be inferred, combines required thickness, in the present embodiment, is formed by stacking for 10 blocks of sheet materials, is in certainly
Groove setting is not done in the outer surface of outermost sheet material.
Deng sheet material glue somewhat do after, by the sheet material mould combined by plate compact, control temperature 40~50
DEG C, conserved, curing time is time of 1~2 week, that is, obtains required finished product, during maintenance, will be combined with compaction mold
Plate compact, curing period is generally 1-2 weeks to reach design strength, (conserves 2 weeks or so, is averaged during about 40 DEG C of temperature on average
Conserved 1 week or so during about 50 DEG C of temperature), it should carry out blocking fencing lawn during maintenance, finally, finished surface is subjected to place of scraping
Reason.
Experiment detection：
In experimentation, tested using 100TYPE3000-4Z electron pressure testing machines, experimentation uses displacement
The experimental method of loading, sample dimensions are 100mm × 100mm, thickness 105mm, loading velocity 2mm/min.It is loaded into most
During big load, reverse cyclic loadings 5 times, modulus of elasticity is calculated, be then loaded onto test specimen destruction, test different texture matches somebody with somebody steel plate under direction
(3mm) modified mechanical property.
The steel plate that the embodiment 1 of table 1 provides is modified the examining report of the finished product of the construction technology of quick growth poplar wood
From the point of view of above-mentioned testing result, the present embodiment provides Modified Poplar made from technique, fully meets existing build
Build needs.
Embodiment 2, the present embodiment provide the construction technology that a kind of steel plate is modified quick growth poplar wood
As shown in figure 3, the difference for the construction technology that the present embodiment is modified quick growth poplar wood with the steel plate that embodiment 1 is provided exists
In the setting of groove 2, it is arranged at intervals along cottonwood plank stuff long side compared to what embodiment 1 was provided, is staggered along short side direction
Structure, the groove 2 that the present embodiment is provided is sets through sheet material 1, i.e., groove 2 is only along between the long side direction of cottonwood plank stuff 1
Every setting, the benefit so set essentially consists in convenient processing, due in architectural process, it is necessary to various sizes of post, beam,
Plate, wall, the construction technology that the steel plate provided using embodiment 1 is modified quick growth poplar wood need, according to live needs, to be added
Work, and the technical scheme that the present embodiment is provided can the large-scale production in factory, it is not necessary to required for considering in architectural process
Size, it is only necessary to scale processes, and then arrive scene on-site cutting as needed can complete.
The steel plate that the embodiment 2 of table 2 provides is modified the examining report of the finished product of the construction technology of quick growth poplar wood
Detected by the experiment to embodiment 1 and embodiment 2, the technical scheme that discovery embodiment 1 is provided is in items
Can on show better than embodiment 2, but the performance that is provided of embodiment 2 is also fully able to meet building needs.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Effect embodiment is applied to other fields, but every without departing from technical solution of the present invention content, the technical spirit according to the present invention
Any simple modification, equivalent variations and the remodeling made to above example, still fall within the protection domain of technical solution of the present invention.
Claims (7)
1. a kind of steel plate is modified the construction technology of quick growth poplar wood, it is characterised in that including following effective procedure：
A, selection：Logical straight, the tree-walk 20cm of quick growth poplar wood trunk or so log is chosen, and is put in shady place placement；
B, cut：The quick growth poplar wood chosen is cut into the sheet material that thickness is 10mm, rejects the sheet material for being unsatisfactory for requiring, process plate
Length and width is size needed for component；
C, depths is managed：The sheet material handled well is subjected to deep processing processing, groove processing is done in plate surface；
D, dry：Sheet material after deep processing is handled is put in shady place and dried 3-5 days or using dryer in 65 DEG C of -85 DEG C of effects
Lower drying more than 8h；
E, heat modification：Sheet material after will be treated is put in nitrogen chamber, and nitrogen at elevated temperature room temperature is to 180 DEG C~260 DEG C to plate
Material does heat modification processing；
F, dry：Sheet material drying baker after heat modification is handled dries more than 24h at 105 DEG C, carries out water ratio test test,
Moisture content is controlled between 9~15%, it is standby；
G, cut：Correspondingly sized steel plate is cut according to the size of sheet material upper groove, it is standby；
H, configuration structure glue：The structure glue includes being used for the carbon cloth glue for impregnating poplar and the steel plate glue for being bonded steel plate,
The carbon cloth glue includes two groups of important components of A, B, wherein, A groups are modified epoxy, and B groups are the phenolic aldehyde ammonia that ethylenediamine is modified
The intermixture of curing agent and aromatic amine curing agent, according to mass ratio A:B=3：1, the component of A, B two is well mixed, it is standby；It is described
Steel plate glue includes two groups of important components of C, B, wherein, C groups are acrylic modified epoxy resin, according to mass ratio C:B=3：1, will
C, the components of B two are well mixed, standby；
I, impregnate：Sheet material after drying is put into vacuum impregnation tank, adds the carbon cloth glue configured, controls vacuum impregnation tank
For 1MPa, 75 DEG C of temperature is controlled, impregnates 3h；
J, combine：Sheet material after dipping is taken out, quickly scrapes off the carbon cloth glue of plate surface, the steel that will be cut in g steps
Plate is quickly coated in the groove of sheet material by steel plate glue, and separately takes one block of sheet material, and the groove for making its corresponding is covered in steel
On plate, the groove between two plates and steel plate is set to cooperatively form an entirety, the rest may be inferred, combines required thickness；
K, conserve：By the sheet material mould combined by plate compact, for control temperature at 40~50 DEG C, curing time is 1~2 week
Time, that is, obtain required finished product.
2. steel plate according to claim 1 is modified the construction technology of quick growth poplar wood, it is characterised in that in the step c, institute
Long side direction of the groove along sheet material is stated to be arranged at intervals.
3. steel plate according to claim 2 is modified the construction technology of quick growth poplar wood, it is characterised in that in the step c, institute
Groove is stated to be staggered along the short side direction of sheet material.
4. steel plate according to claim 3 is modified the construction technology of quick growth poplar wood, it is characterised in that in the step c, institute
Groove is stated along sheet material short side direction at least provided with three row.
5. steel plate according to claim 4 is modified the construction technology of quick growth poplar wood, it is characterised in that first in the step e
Sheet material after first will be treated is put in nitrogen chamber, and then nitrogen at elevated temperature room temperature starts to inject nitrogen, control to 140 DEG C
Temperature is incubated 2h at 180 DEG C~260 DEG C, is then shut off nitrogen injection, closing temperature control, and placement is down to nitrogen room temperature
After 40 DEG C, sheet material is taken out.
6. steel plate according to claim 5 is modified the construction technology of quick growth poplar wood, it is characterised in that the B component second two
The phenolic aldehyde ammonia curing agent and aromatic amine curing agent that amine is modified are according to mass ratio 1:2~5 ratio mixing.
7. steel plate according to claim 6 is modified the construction technology of quick growth poplar wood, it is characterised in that first in the i steps
First sheet material is put into vacuum impregnation tank, vacuum impregnation tank is then pumped into -0.2MPa vacuum with vavuum pump, then turned on
Imported valve, carbon cloth glue is pressed into vacuum impregnation tank using atmospheric pressure, after carbon cloth glue submerges sheet material, by vacuum impregnation tank
1MPa is transferred to, controls 75 DEG C of temperature, impregnates 3h.
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