CN102398287B - Method for producing bamboo-wood composite board - Google Patents
Method for producing bamboo-wood composite board Download PDFInfo
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- CN102398287B CN102398287B CN 201110250865 CN201110250865A CN102398287B CN 102398287 B CN102398287 B CN 102398287B CN 201110250865 CN201110250865 CN 201110250865 CN 201110250865 A CN201110250865 A CN 201110250865A CN 102398287 B CN102398287 B CN 102398287B
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- central layer
- dash board
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Abstract
Description
Technical field
The present invention relates to the production method of the production method of construction material composite slab rubber, particularly a kind of bamboo-wood plyboard.
Background technology
China belongs to Shaolin country, has forest reserves per capita less than 9.1m 3, the timber supply and demand is very nervous.Along with the rise of interior design, the wood floors demand sharply increases in recent years, and the manufacturing of China's wood floors depends on from ground imports such as Southeast Asia, Africa with material always for a long time.Yet, along with the whole world in recent years to the attention of ecological environment, make each timber exported country reduce one after another and limited the log outlet.Caused wood floors there is lack of raw materials with and the rise of price, impel the consumer when choosing the floor, to pay the utmost attention to the rational more non-solid wood class of price floor, as the bamboo floor.These reasons all will force the lasting contraction of solid wood class floor occupation rate of market, in the huge home decoration consumption market of China, and the floor of non-solid wood class, particularly bamboo floor will show more and more actively.
China is the abundantest country of bamboo resource in the world, and wherein industrialized utilization is worth the highest mao bamboon and surpasses 300hm 2, account for 90% of the total mao bamboo woods area in the world.The mao bamboon growth can be cut down utilization in 4 to 5 years rapidly, and its material-structure intensity generally is higher than timber.In addition, the common texture that has aesthetic feeling of general bamboo wood, elegant color and luster, characteristic such as cool in summer and warm in winter all make it be well suited for making for floor etc.At the beginning of the eighties in last century, the bamboo floor begins to come across market, because it is in many-sided advantages such as structure, texture, color and lusters, product just is subjected to consumer's favor once coming out.Even so, bamboo floor is owing to complex manufacturing, and labor productivity is low, thereby the product cost height, is difficult to popularize on a large scale; In addition, bamboo wood also is used for making other daily living article in a large number, and available resource is compared still less with timber; No matter be solid wooden floor board simultaneously, or the bamboo floor, the both has a common shortcoming, and namely dimensional stability is relatively poor.These factors have all restricted the further expansion in market, bamboo floor.
Bamboo compound floor occurs under these circumstances just and grows up.The product of this most general type is three layers of bamboo compound floor in the market, and it is combined by block board, two bamboo dash boards being positioned at the block board both sides usually.The research and development of bamboo compound floor and production are exactly the complex effect of utilizing bamboo wood and timber, the good characteristic that had both kept bamboo wood, overcome the defective of artificial fast-growing woods timber again, have the qualities such as novel and beautiful, tough and hard wear resistant and comfortable safety of bamboo floor and wood floors simultaneously concurrently, thereby realized the optimum utilization of resource, promoted the development of local economy; More be conducive to alleviate the situation of China's wood supply anxiety, help to accelerate the enforcement of " natural forest protection " engineering.
Yet bamboo-wood plyboard of the prior art exists buckling deformation to reach problems such as MOR is low greatly, influences the market development of product.
Summary of the invention
The purpose of this invention is to provide a kind of bamboo-wood plyboard production method, it is little that the bamboo-wood plyboard of implementing the preparation of this method has buckling deformation, the advantage that MOR is high.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of bamboo-wood plyboard production method, and it may further comprise the steps:
(1) preparation of central layer and dash board,
1. the preparation of central layer may further comprise the steps successively:
A, select materials, the timber of choosing is pulverized, get particle diameter less than the wooden particle of 6mm;
B, will make wooden particle and carry out drying, and make the moisture content of wooden particle reduce to 9% to 11%;
C, wooden particle is made the central layer blank through applying glue, hot pressing, cooling;
D, the central layer blank is cut into sheet material by required size gets central layer;
2. the preparation of dash board may further comprise the steps successively:
A, select materials, the bamboo wood of choosing is whittled into 0.5 to 1.5mm thin bamboo strips used for weaving bar through wood chipping equipment;
B, the thin bamboo strips used for weaving bar is carried out moth-proof and mould-proof handle;
C, the thin bamboo strips used for weaving bar that makes is carried out drying, make the moisture content of thin bamboo strips used for weaving bar reduce to 7% to 9%;
D, the thin bamboo strips used for weaving bar that drying is got make the dash board blank through applying glue, hot pressing, cooling;
E, the dash board blank is cut into the sheet material that matches with central layer, namely gets dash board;
(2) recombination process of central layer and dash board may further comprise the steps successively:
A, central layer, dash board are carried out the adjustment of moisture content, the moisture content that makes central layer is 8% to 10%, and the moisture content of dash board is 6% to 8%;
B, to central layer, dash board carry out applying glue, hot pressing, cool off bamboo grove composite plate blank;
C, with bamboo wood composite blank health 3 to 7 days.
Because artificial fast-growing woods seeds have handling ease, the characteristics that production efficiency is high, the present invention in the selection of timber based on artificial fast-growing woods seeds, as China fir, poplar etc.; Timber is carried out pulverization process, in order to improve the dimensional stability of central layer; The drying of thin bamboo strips used for weaving bar is handled and has not only further been prevented growing of moth and mould, and more is conducive to the heat-press step that the thin bamboo strips used for weaving bar continues.
As of the present invention preferred, described step b is: wooden particle is placed on the natural seasoning place earlier, when gas is done to moisture content 35%, send into dry kiln and carry out force drying, the humidity in the control dry kiln is 70% to 90%, and the time is 5 days to 6 days, the temperature of controlling first day is 50 ℃ to 60 ℃, and 10 ℃ the programming rate that keeps heating up every day, reach 100 ℃ until temperature, make moisture content be reduced to 9% to 11%.
Wooden particle is not only had the effect of moth-proof and mould-proof, be conducive to follow-up heat-press step, and be conducive to improve dimensional stability and the water absorption rate of central layer.
As of the present invention preferred, also comprise the balancing water content step before the step c described in the central layer preparation process, soon put between balance conditioning through the dried wooden particle of step b, the control temperature is 20 ℃ to 35 ℃, humidity is 40% to 60%, deposited 3 to 5 days, and made the moisture content equilibrium between each wooden particle.
Make the moisture content equilibrium between the wooden particle as much as possible, further be conducive to follow-up heat-press step.
As of the present invention preferred, in the hot pressing of the step c in the central layer preparation process, hot pressing temperature is 90 ℃ to 130 ℃, and hot pressing time is 30 min to 40min, and pressure is 3mpa to 5mpa.
As of the present invention preferred, the moth-proof and mould-proof of thin bamboo strips used for weaving bar is handled as follows in the dash board preparation process: earlier the thin bamboo strips used for weaving bar is put into 50 ℃ to 70 ℃ hot water, pour 25% to 35% hydrogen peroxide in hot water, the hydrogen peroxide quality is hot water quality's 3% to 5%; Again hot water is boiled and keep 1h to 2h; Take out the thin bamboo strips used for weaving bar then and put into the charing case, the temperature in the control charing case is 120 ℃ to 150 ℃, and humidity is 85% to 95%, and keeps 2h to 4h.
Because more nutrition is contained than timber in the bamboo village, cause easily mould this and damage by worms, therefore, must carry out moth-proof and mould-proof to the thin bamboo strips used for weaving bar handles, the present invention adopts charing method, utilizes the environment of high temperature, high humidity, makes organic matter in the thin bamboo strips used for weaving bar as decomposition such as sugar, starch, protein, make insects such as fungi lose source of nutrition, worm's ovum and the fungi that will be attached to again in the thin bamboo strips used for weaving bar simultaneously kill; And the thin bamboo strips used for weaving bar is after charing is handled, and the bamboo fibre coking becomes bronze-colored or is similar to coffee color, thereby color and luster is simple and unsophisticated, and is peculiar, and in order to make the charing effect better, the present invention adopted hydrogen peroxide the thin bamboo strips used for weaving bar to be carried out the bleaching of appropriateness before charing earlier simultaneously.
As of the present invention preferred, in the hot pressing of the steps d in the dash board preparation process, hot pressing temperature is 100 ℃ to 150 ℃, carry out side pressure earlier, side pressure pressure is 1mpa to 3mpa, and the side pressure time is 2min to 4min, carries out malleation again, normal pressure is 2mpa to 3mpa, and the malleation time is 6min to 10min.
Carrying out side pressure earlier, is in order to make between the thin bamboo strips used for weaving bar side direction not meet the crack in conjunction with closely having, then to apply positive pressure, up to adhesive solidification.
As of the present invention preferred, step a in the recombination process of central layer and dash board is as follows: central layer, dash board are all put into the conditioning room, and the control temperature is 30 ℃ to 45 ℃, and humidity is 70% to 90%, make the moisture content of central layer be adjusted into 8% to 10%, the moisture content of dash board is adjusted into 6% to 8%.
As of the present invention preferred, the adhesive that the applying glue process of the step b in central layer and the dash board recombination process adopts is the water soluble phenolic resin, and resin added is 200g/m 2To 300g/m 2
As of the present invention preferred, the hot pressing of the step c in central layer and the dash board recombination process in turn includes the following steps:
1. heat the precompressed stage: heating plate is contacted with the material surface, and keep-uping pressure is that 1mpa to 1.5mpa, temperature are 90 ℃ to 100 ℃, and the time is 2min to 3min;
2. packing stage: intensified pressure, making pressure is 3mpa to 5mpa, and temperature is increased to 120 ℃ to 140 ℃, and the time is 5min to 10min;
3. finalize the design the stage: reduce pressure, making pressure is 1.5mpa to 2mpa, and temperature is 80 ℃ to 100 ℃, and the time is 2min to 6min.
As of the present invention preferred, the production method of this kind bamboo-wood plyboard also comprises the japanning step behind central layer and the dash board recombination process, namely to the surface-coated skin of paint of dash board.
The japanning step is in order further to control the water absorption rate of bamboo-wood plyboard.
In sum, the present invention has following beneficial effect:
1, raw-material sustainability: though the bamboo growth cycle is lacked, become a useful person soon, but it is less to compare the shared share of timber resources, if excessively exploitation causes bamboo wood to degenerate probably, this just requires planned limited bamboo timber resource and the timber resources made good use of; The three-decker of bamboo-wood plyboard, two dash boards adopt bamboo wood, and central layer adopts fast growing wood, and this is beneficial to realizes raw-material sustainable development;
2, scientific and reasonable for structure: intensity is big, that hardness is high bamboo wood is as the dash board material, with fast growing wood as core material, self regulating power that has strengthened effectively that system's internal stress changes has overcome single bamboo clappers and solid wood board size instability, yielding etc. asking to a great extent;
3, beautiful and comfortable: central layer has used soft fast growing wood, has strengthened the elasticity of this plate, if be used for the floor, then has fabulous feel, has long service life simultaneously; And the bamboo wood surface has characteristics such as quality exquisiteness, clean mark, smooth smooth and natural aesthetic feeling, charing bamboo wood surface color is simple and unsophisticated, and is peculiar, adds bamboo wood and all be radially texture, therefore, make the bamboo-wood plyboard of using the present invention's preparation have unique appearance effect.
MOR and angularity are the important indicators of bamboo compound floor.Temperature, pressure and hot pressing time when the inventor draws central layer and dash board hot pressing in the bamboo wood recombination process by a large amount of experiments is to MOR, the angularity important influence of bamboo-wood plyboard, the particularly temperature of packing stage, pressure, hot pressing time, central layer and the moisture content of dash board before hot pressing also have bigger influence to MOR, the angularity of bamboo-wood plyboard simultaneously.
Bamboo-wood plyboard production method provided by the invention has good anti-song and sticks up performance and MOR for the inventor gets through a large amount of experimental summaries.
Solid wooden compound floor national standard (GB/T 18103-2000) regulation, the MOR of solid wooden compound floor can not be lower than 30mpa; Convexity warp degree≤1.0% of length direction; Convexity warp degree≤0.20% of width.Inventor's the part experimental data at central layer and dash board recombination process is as follows:
Moisture content-the D1 of central layer is 6% to 12%, and the moisture content-D2 of dash board is 5% to 9%;
The design hot pressing temperature is as follows: the temperature-A1 in heating precompressed stage is 90 ℃ to 100 ℃; Temperature-the A2 of packing stage is 110 ℃ to 150 ℃; Temperature-the A3 in typing stage is 80 ℃ to 100 ℃;
The design hot pressing pressure is as follows: the pressure-B1 in heating precompressed stage is 1mpa to 1.5 mpa; Pressure-the B2 of packing stage is 2mpa to 6mpa; Pressure-the B3 in typing stage is 1.5mpa to 2mpa.
The design hot pressing time is as follows: the time-C1 in heating precompressed stage is 2min to 3min; Time-the C2 of packing stage is 3min to 13min; Time-the C3 in typing stage is respectively 2min to 6min.
Experimental result sees Table 1, and is as follows
Table 1:
The error of MOR is in ± 0.05, and the error of protruding set-back is in ± 0.005, and by table 11, the bamboo-wood plyboard that makes by the present invention has good anti-song and sticks up performance and MOR as can be known.
The specific embodiment
This specific embodiment only is explanation of the invention; it is not limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present invention.
Embodiment 1: a kind of bamboo-wood plyboard production method, and it may further comprise the steps:
(1) preparation of central layer and dash board,
1. the preparation of central layer may further comprise the steps successively:
A, to select air-dry density for use be 0.45g/cm 3Poplar is pulverized the timber chosen, gets particle diameter and be 2 to 5mm wooden particle;
B, will make wooden particle and carry out drying, wooden particle is placed on the natural seasoning place earlier, when gas is done to moisture content 35%, send into dry kiln and carry out force drying, the humidity in the control dry kiln is 70%, and the time is 6 days, the temperature of controlling first day is 50 ℃, and 10 ℃ the programming rate that keeps heating up every day, reach 100 ℃ until temperature, make moisture content be reduced to 9%; For making the moisture content equilibrium between each wooden particle, also must carry out the balancing water content step, be about to dried wooden particle and put between balance conditioning, the control temperature is 20 ℃, humidity is 40%, deposits 3 days;
C, wooden particle is made the central layer blank through applying glue, hot pressing, cooling; Adhesive adopts the water soluble phenolic resin; Hot pressing temperature is 90 ℃, and hot pressing time is 30 min, and pressure is 3mpa, after hot pressing is finished, takes out the nature cooling;
D, that the central layer blank is cut into the wide * of the long * of 2440mm*1220mm*15mm(is thick) sheet material get central layer;
2. the preparation of dash board may further comprise the steps successively:
A, select the bamboo of life in 4 to 6 years for use, the bamboo wood of choosing is whittled into 0.5 to 1.5mm thin bamboo strips used for weaving bar through wood chipping equipment;
B, the thin bamboo strips used for weaving bar is carried out moth-proof and mould-proof handle: earlier the thin bamboo strips used for weaving bar is put into 50 ℃ hot water, pour 25% hydrogen peroxide in hot water, the hydrogen peroxide quality is hot water quality's 3%; Again hot water is boiled and keep 1h; Take out the thin bamboo strips used for weaving bar then and put into the charing case, the temperature in the control charing case is 120 ℃, and humidity is 85%, and keeps 2h;
C, the thin bamboo strips used for weaving bar that makes is sent into dry kiln carry out drying, the humidity in the control dry kiln is 70%, and temperature is 60 ℃, and the time is 4 days, makes the moisture content of thin bamboo strips used for weaving bar reduce to 7%;
D, the thin bamboo strips used for weaving bar that drying is got make the dash board blank through applying glue, hot pressing, cooling; Adhesive is phenolic resin; In the hot pressing, hot pressing temperature is 100 ℃, does not meet the crack in order to make between the thin bamboo strips used for weaving bar side direction in conjunction with closely having, and carries out side pressure earlier, and side pressure pressure is 1mpa, and the side pressure time is 2min, carries out malleation again, and normal pressure is 2mpa, and the malleation time is 6min;
E, that the dash board blank is cut into two wide * of the long * of 2440mm*1220mm*10mm(is thick) sheet material, namely get dash board;
(2) recombination process of central layer and dash board may further comprise the steps successively:
A, central layer, dash board are all put into the conditioning room, carry out the adjustment of moisture content, the control temperature is 30 ℃, and humidity is 70%, makes the moisture content of central layer be adjusted into 8%, and the moisture content of dash board is adjusted into 6%;
B, to central layer, dash board carry out applying glue, hot pressing, cool off bamboo grove composite plate blank; Adhesive is the water soluble phenolic resin, and resin added is 200g/m 2Hot pressing in turn includes the following steps:
1. heat the precompressed stage: heating plate is contacted with the material surface, and keep-uping pressure is that 1mpa, temperature are 90 ℃, and the time is 2min;
2. packing stage: intensified pressure, making pressure is 3mpa, and temperature is increased to 120 ℃, and the time is 5min;
3. finalize the design the stage: reduce pressure, making pressure is 1.5mpa, and temperature is 80 ℃, and the time is 2min;
C, with bamboo wood composite blank health 3 days, 30 ℃ of health temperatures, humidity 15%;
D, japanning step, the surface-coated UV solidified paint to dash board further reduces water absorption rate.
After testing, the present embodiment performance is as follows:
Embodiment 2: a kind of bamboo-wood plyboard production method, and it may further comprise the steps:
(1) preparation of central layer and dash board,
1. the preparation of central layer may further comprise the steps successively:
A, to select air-dry density for use be 0.55g/cm 3China fir is pulverized the timber chosen, gets particle diameter and be 3 to 6mm wooden particle;
B, will make wooden particle and carry out drying, wooden particle is placed on the natural seasoning place earlier, when gas is done to moisture content 35%, send into dry kiln and carry out force drying, the humidity in the control dry kiln is 80%, and the time is 5 days, the temperature of controlling first day is 60 ℃, and 10 ℃ the programming rate that keeps heating up every day, reach 100 ℃ until temperature, make moisture content be reduced to 10%; For making the moisture content equilibrium between each wooden particle, also must carry out the balancing water content step, be about to dried wooden particle and put between balance conditioning, the control temperature is 30 ℃, humidity is 50%, deposits 4 days;
C, wooden particle is made the central layer blank through applying glue, hot pressing, cooling; Adhesive adopts the water soluble phenolic resin; Hot pressing temperature is 100 ℃, and hot pressing time is 35min, and pressure is 4mpa, after hot pressing is finished, takes out the nature cooling;
D, that the central layer blank is cut into the wide * of the long * of 2500mm*1250mm*15mm(is thick) sheet material get central layer;
2. the preparation of dash board may further comprise the steps successively:
A, select the firm bamboo of life in 5 to 6 years for use, the bamboo wood of choosing is whittled into 0.5 to 1.5mm thin bamboo strips used for weaving bar through wood chipping equipment;
B, the thin bamboo strips used for weaving bar is carried out moth-proof and mould-proof handle: earlier the thin bamboo strips used for weaving bar is put into 60 ℃ hot water, pour 30% hydrogen peroxide in hot water, the hydrogen peroxide quality is hot water quality's 4%; Again hot water is boiled and keep 1.5h; Take out the thin bamboo strips used for weaving bar then and put into the charing case, the temperature in the control charing case is 130 ℃, and humidity is 90%, and keeps 3h;
C, the thin bamboo strips used for weaving bar that makes is sent into dry kiln carry out drying, the humidity in the control dry kiln is 65%, and temperature is 50 ℃, and the time is 4 days, makes the moisture content of thin bamboo strips used for weaving bar reduce to 8%;
D, the thin bamboo strips used for weaving bar that drying is got make the dash board blank through applying glue, hot pressing, cooling; Adhesive is phenolic resin; In the hot pressing, hot pressing temperature is 120 ℃, does not meet the crack in order to make between the thin bamboo strips used for weaving bar side direction in conjunction with closely having, and carries out side pressure earlier, and side pressure pressure is 2mpa, and the side pressure time is 3min, carries out malleation again, and normal pressure is 2.5mpa, and the malleation time is 8min;
E, that the dash board blank is cut into two wide * of the long * of 2500mm*1250mm*10mm(is thick) sheet material, namely get dash board;
(2) recombination process of central layer and dash board may further comprise the steps successively:
A, central layer, dash board are all put into the conditioning room, carry out the adjustment of moisture content, the control temperature is 40 ℃, and humidity is 80%, makes the moisture content of central layer be adjusted into 9%, and the moisture content of dash board is adjusted into 7%;
B, to central layer, dash board carry out applying glue, hot pressing, cool off bamboo grove composite plate blank; Adhesive is the water soluble phenolic resin, and resin added is 250g/m 2Hot pressing in turn includes the following steps:
1. heat the precompressed stage: heating plate is contacted with the material surface, and keep-uping pressure is that 1.2mpa, temperature are 95 ℃, and the time is 2.5min;
2. packing stage: intensified pressure, making pressure is 4mpa, and temperature is increased to 130 ℃, and the time is 7min;
3. finalize the design the stage: reduce pressure, making pressure is 1.8mpa, and temperature is 90 ℃, and the time is 4min;
C, with bamboo wood composite blank health 5 days, 35 ℃ of health temperatures, humidity 20%;
D, japanning step, the surface-coated UV solidified paint to dash board further reduces water absorption rate.
After testing, the present embodiment performance is as follows:
Embodiment 3: a kind of bamboo-wood plyboard production method, and it may further comprise the steps:
(1) preparation of central layer and dash board,
1. the preparation of central layer may further comprise the steps successively:
A, to select air-dry density for use be 0.65g/cm 3Pine is pulverized the timber chosen, gets particle diameter and be 1 to 5mm wooden particle;
B, will make wooden particle and carry out drying, wooden particle is placed on the natural seasoning place earlier, when gas is done to moisture content 35%, send into dry kiln and carry out force drying, the humidity in the control dry kiln is 90%, and the time is 5 days, the temperature of controlling first day is 60 ℃, and 10 ℃ the programming rate that keeps heating up every day, reach 100 ℃ until temperature, make moisture content be reduced to 11%; For making the moisture content equilibrium between each wooden particle, also must carry out the balancing water content step, be about to dried wooden particle and put between balance conditioning, the control temperature is 35 ℃, humidity is 60%, deposits 5 days;
C, wooden particle is made the central layer blank through applying glue, hot pressing, cooling; Adhesive adopts the water soluble phenolic resin; Hot pressing temperature is 130 ℃, and hot pressing time is 40min, and pressure is 5mpa, after hot pressing is finished, takes out the nature cooling;
D, that the central layer blank is cut into the wide * of the long * of 2500mm*1250mm*15mm(is thick) sheet material get central layer;
2. the preparation of dash board may further comprise the steps successively:
A, select the mao bamboon of life in 5 years for use, the bamboo wood of choosing is whittled into 0.5 to 1.5mm thin bamboo strips used for weaving bar through wood chipping equipment;
B, the thin bamboo strips used for weaving bar is carried out moth-proof and mould-proof handle: earlier the thin bamboo strips used for weaving bar is put into 70 ℃ hot water, pour 35% hydrogen peroxide in hot water, the hydrogen peroxide quality is hot water quality's 5%; Again hot water is boiled and keep 2h; Take out the thin bamboo strips used for weaving bar then and put into the charing case, the temperature in the control charing case is 150 ℃, and humidity is 95%, and keeps 4h;
C, the thin bamboo strips used for weaving bar that makes is sent into dry kiln carry out drying, the humidity in the control dry kiln is 70%, and temperature is 50 ℃, and the time is 3 days, makes the moisture content of thin bamboo strips used for weaving bar reduce to 9%;
D, the thin bamboo strips used for weaving bar that drying is got make the dash board blank through applying glue, hot pressing, cooling; Adhesive is phenolic resin; In the hot pressing, hot pressing temperature is 150 ℃, does not meet the crack in order to make between the thin bamboo strips used for weaving bar side direction in conjunction with closely having, and carries out side pressure earlier, and side pressure pressure is 3mpa, and the side pressure time is 4min, carries out malleation again, and normal pressure is 3mpa, and the malleation time is 10min;
E, that the dash board blank is cut into two wide * of the long * of 2500mm*1250mm*10mm(is thick) sheet material, namely get dash board;
(2) recombination process of central layer and dash board may further comprise the steps successively:
A, central layer, dash board are all put into the conditioning room, carry out the adjustment of moisture content, the control temperature is 45 ℃, and humidity is 90%, makes the moisture content of central layer be adjusted into 10%, and the moisture content of dash board is adjusted into 8%;
B, to central layer, dash board carry out applying glue, hot pressing, cool off bamboo grove composite plate blank; Adhesive is the water soluble phenolic resin, and resin added is 300g/m 2Hot pressing in turn includes the following steps:
1. heat the precompressed stage: heating plate is contacted with the material surface, and keep-uping pressure is that 1.5mpa, temperature are 100 ℃, and the time is 3min;
2. packing stage: intensified pressure, making pressure is 5mpa, and temperature is increased to 140 ℃, and the time is 10min;
3. finalize the design the stage: reduce pressure, making pressure is 2mpa, and temperature is 100 ℃, and the time is 6min;
C, with bamboo wood composite blank health 5 days, 35 ℃ of health temperatures, humidity 15%;
D, japanning step, the surface-coated UV solidified paint to dash board further reduces water absorption rate.
After testing, the present embodiment performance is as follows:
Claims (5)
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| CN108908596B (en) * | 2018-07-28 | 2020-05-26 | 福建杜氏木业有限公司 | Bamboo chip carbonization drying process |
| CN109227837A (en) * | 2018-08-09 | 2019-01-18 | 安徽固尔特新材料有限公司 | A kind of army dual-purpose wood packing box furnace drying method |
| CN109483662A (en) * | 2018-11-21 | 2019-03-19 | 福建森源木作有限公司 | A kind of processing technology of crack resistence and anti-sagging wood veneer |
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Denomination of invention: Integrated board production method Effective date of registration: 20151019 Granted publication date: 20130911 Pledgee: Anji Rural Commercial Bank of Zhejiang branch of Limited by Share Ltd Pledgor: Zhejiang Anji Double-Tiger Bamboo & Wood Industry Co., Ltd. Registration number: 2015980000228 |
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Date of cancellation: 20180619 Granted publication date: 20130911 Pledgee: Anji Rural Commercial Bank of Zhejiang branch of Limited by Share Ltd Pledgor: Zhejiang Anji Double-Tiger Bamboo & Wood Industry Co., Ltd. Registration number: 2015980000228 |