CN104088436A - Carbonized solid wood composite floor and production technology thereof - Google Patents
Carbonized solid wood composite floor and production technology thereof Download PDFInfo
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- CN104088436A CN104088436A CN201410335162.0A CN201410335162A CN104088436A CN 104088436 A CN104088436 A CN 104088436A CN 201410335162 A CN201410335162 A CN 201410335162A CN 104088436 A CN104088436 A CN 104088436A
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Abstract
The invention belongs to the technical field of floors and relates to a carbonized solid wood composite floor and a production technology of the carbonized solid wood composite floor. The carbonized solid wood composite floor is formed by gluing surface boards, core boards and bottom boards. The surface boards, the core boards and the bottom boards are longitudinally and transversely arrayed in a staggered mode according to wood textures, the core boards are carbonized, and the surface boards and/or the bottom boards are carbonized as needed. The invention further discloses a production technology of the carbonized solid wood composite floor. The technology includes the steps of surface board, core board and bottom board manufacturing, blank assembly, hot pressing, conditioning, sanding thickness defining, tenon making, painting, tongue sealing, testing for packaging and others. Woods, especially precious woods and artificial fast-growing forest resources, are reasonably utilized; for the structural design, heat transfer, deformation, cracking and other key factors are fully considered, especially, due to determining of the core board carbonization technology, the bending deformation of the manufactured carbonized solid wood composite floor finished product is small, the risk of floor cracking is reduced, and the carbonized solid wood composite floor has broad market development prospects.
Description
Technical field
The invention belongs to technical field of floor, relate to solid wooden compound floor, relate in particular to a kind of charring solid wood composite floor board and production technology thereof.
Background technology
Along with day hastening towards saturation of consolidated floor market, solid wood class floor occupation rate of market in board industry is entirely more and more higher.Wherein the solid wooden compound floor of three layer construction as heating floor due to its feature of environmental protection, not yielding, be suitable for area wide, appearance effect good, is more and more subject to the favor in market.
Three-layer wood composite flooring surface is general adopts the famous and precious seeds of 3～4mm hard wood as dash board, and central layer, base plate cork veneer used mostly are the fast growing woods such as dragon spruce, pinus sylvestris var. mongolica, poplar, Eucalyptus.Timber, as natural ecomaterial, has special conditioning characteristic, but can produce along with the difference of environment for use expand with wet and contract with dry.Because of this specific character of timber, in production and use procedure, can there is buckling deformation in solid wooden compound floor, have influence on Floor Covering and use just; In the time that core, base plate are fast growing wood, along with the variation of weather humiture throughout the year, central layer is plain-sawed lumber, and drying shrinkage can reach 6～12%, and the surface on floor there will be ripple glaze, is commonly called as " central layer ripple glaze ", affects attractive in appearance after Floor Covering; Because the convergent-divergent of each layer of floor causes STRESS VARIATION between floor layer, especially, when Floor Covering is in floor heating environment, internal stress can cause floor surface to ftracture.
In industry, solving problems is at present mainly that floor skin-material is carried out to charing, so-called " charing ", it is exactly the high-temperature heat treatment of timber, it is a kind of method for modifying wood that does not add any foreign substance, its basic scheme is at high temperature, anoxic, steam (or deep fat, inert gas etc.) protection specified conditions under timber is heat-treated, make the hemicellulose components decomposed of timber inside, starch, the nutriment reaction volatilizations such as carbohydrate, the new chemical bonds of the inner formation of timber, thereby reach the dimensional stability that improves timber, weather-proof durability object.High-temperature thermal treatment timber through charing processing is extensively used as exterior decoration constructional materials, the indoor material directly contacting with water and the base material of ground heating floor, and its value-added content of product is improved greatly.When charing treatment process is applied to wooden floor, adopt the many of overall charing; While processing for solid wooden compound floor, it is mainly the charing processing to dash board.The difference of charring process can have a great impact the surface property of material, because of the general 3～4mm of dash board thickness, thinner, only its charing is not enough to offset the distortion of core, base plate, and floor still there will be buckling deformation in production and use procedure.And because charring process is unreasonable, when wooden floor uses in floor heating environment, dash board still there will be Large Area Cracking, result of use does not reach client's requirement.
Notification number is that the disclosed flooring structure of CN100392200C " a kind of charring wood composite floor and manufacture method thereof " top layer is by making through the solid wood of charing processing, central layer is to select fast growing wood composite plate, and bottom can be made with the rotary cut venner of fast growing wood or fast growing wood carbonized wood; Between three layers, table, core, backing layer, sticking with glue agent gummed forms; Sandwich layer is formed through subdivision by central layer blank; Described central layer blank is to be formed by the crisscross odd-level multilayer gluing that is of individual layer jigsaw, and described individual layer jigsaw is formed by the splicing of some thin plate side direction.The manufacture method of charring wood composite floor is divided, and prepares charring wood composite floor top layer, sandwich layer and primer, advantage: charring wood composite floor has not only been saved precious dash board resource, and has good biodurable, weatherability and dimensional stability.
Notification number is that CN202519948U " a kind of three layers of carbonizing wood floor board " discloses a kind of three layers of carbonizing wood floor board, and this carbonizing wood floor board is three layer construction, sticks with glue knot together.In the time that humiture significantly changes, the deflection on floor is very little, can not have influence on attractive in appearance; Can mat formation for northern underground heat; Little with respect to multi-layer composite floor glue consumption, more natural environmental protection; Through three layers of floor of carbonized wood of high-temperature heat treatment, there is effect of anticorrosion anti-fungi.
Notification number is that CN20137160Y " a kind of carbonizing wood floor board " discloses a kind of charring wood composite floor, and this floor is the sheet surface layer (1) of making through superhigh temperature heat treatment with rare tree, the bottom plate (3) of making through superhigh temperature heat treatment with fast growing wood and splices core layer (2) formation made from the inferior wooden floor blank that rolls off the production line; Core layer (2) is positioned between dash board layer (1) and bottom (3), and sheet surface layer (1), middle layer plate (2), bottom plate are used isocyanate glue integrator between (3).
Notification number is that CN201343853Y " a kind of carbonized wood-bamboo composite floor " discloses a kind of charring wood composite floor, the dash board layer (1) that be made up of mao bamboon on this floor and the base material (2) made from the processing of fast growing wood superhigh temperature form, dash board layer (1) is positioned at base material (2) surface, and sheet surface layer (1), base material are used isocyanate glue integrator between (2).
Summary of the invention
For the problems referred to above, the invention discloses dash board, central layer charring process, object is, a kind of charring solid wood composite floor board is provided, by determining of the charring process to dash board, central layer, can reduces dash board cracking rate, improve floor qualification rate in process of production, can meet user in the mechanical property on floor and reduce that core layer drying shrinkage is wet to rise requiring, in the time that dash board thickness drops to 2mm left and right, still can control well floor deformation and avoid the generation of central layer ripple glaze.
Charring solid wood composite floor board disclosed in this invention, formed by dash board 1, central layer 2 and base plate 3 gummeds successively, described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain, described central layer 2 is through charing processing, dash board 1 and or base plate 3 also through charing processing.
Charring solid wood composite floor board disclosed in this invention, described dash board 1 thickness is 1～4mm, and central layer 2 thickness are 6～9mm, and base plate 3 thickness are 1～3mm.
Charring solid wood composite floor board disclosed in this invention, described central layer 3 is arranged and is formed in the longitudinal direction by strip central layer.
The production technology of the above-mentioned charring solid wood composite floor board of production disclosed in this invention, comprises following processing step:
A, prepare dash board: choose high-quality hardwood seeds, shear sorting and be processed into sheet material, utilize vacuum dry kiln or conventional kiln drying (kd) dry, moisture content reaches 5～8%, 140～220 DEG C of then charing treatment temperatures, carbonization time 0.5h～2h, oxygen content 2～20%;
B, prepare central layer: conventional drying, charing treatment temperature is at 160～200 DEG C, wherein 160 DEG C of processing time 2h, 180 DEG C of processing times are processed 2h, oxygen content 2～20% for can be 1h, 2h, 4h or 200 DEG C;
C, prepare base plate: utilize vacuum dry kiln or conventional kiln drying (kd) dry, making base plate moisture content is 5～6.5%, through sanding, shear the base plate of making desired thickness and breadth, described base plate can carry out charing processing as required;
D, gluing: coating binder on the cemented surface of the good dash board of balance and base plate, described dash board one side coating weight 140～160g/m
2, base plate coating weight 140～170g/m
2;
E, assembly and hot pressing: dash board, central layer and base plate are carried out to longitudinal, horizontal, longitudinal arrangement assembly interlaced with each other according to wood grain, then put into hot press hot pressing, 93 ± 2 DEG C of hot pressing temperatures, hot pressing time 240s, hot pressing pressure 11～12kg/cm
2;
F, health: the sheet material after assembly hot pressing is inserted to 2～5d between health, 22～26 DEG C of temperature, humidity 38～45%, then shifts out, and treats that plate surface temperature balance is to room temperature;
G, sanding are determined thick: fixed thick to the three-layer wood composite flooring after displaying health with contact calibrating machine, and thickness deviation ± 0.2mm;
H, mortise: open as required tongue and groove or snap close;
I, paint: at the bottom of the priming paint → wear-resistant primer → hardening primer → transparent priming → sanding of aqueous priming paint → elastic break-preventing → 2 road finish paints;
J, adhesive tape flap: painted and carried out forward joint tongue flap operation of floor with adhesive tape afterwards, adhesive tape can not exceed floor positive and negative;
K, the packaging such as test.
Charring solid wood composite floor board disclosed in this invention, described dash board 1 can be toothed oak wood, black walnut, cherry, look wood, birch or husky Billy.
Charring solid wood composite floor board disclosed in this invention, described central layer 2 can be dragon spruce, pinus sylvestris var. mongolica, poplar or China fir.
The production technology of charring solid wood composite floor board disclosed in this invention, applicant is through lot of experiments and practice, and this technique can obtain good result.
Determining of charring process
One, determining of dash board charring process
The technological parameter of charing is 20, heat treatment temperature is since 140 DEG C (maximum temperatures that while referring to heat treatment, dry bulb reaches), each technique differs 20 DEG C, temperature retention time is according to 0.5h, 1h, 1.5,2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature); Totally 20 technological parameters, the dash board after high-temperature heat treatment is produced according to B-K technique, and wherein to select routine be the central layer of non-charing to the central layer in B; Finally, according to 6.2.5 surface cold-hot cycle detection in the standard of wood floors for LY/T1700-2007 ground heating, being placed in temperature by test specimen is that the drying box of 70 ± 2 DEG C is processed 120 ± 10min, in the drying box that is-20 ± 2 DEG C in temperature again, processing 120 ± 10min is one-period, and four cycles of so circulating, more than at room temperature placing 1h, under available light, apart from the about 40cm in test specimen surface, with the naked eye, from the situation on arbitrarily angled observation test specimen surface, result is as follows:
Table 1 dash board charring process is determined
Except 180/220 DEG C, outside 0.5h, remaining technique can meet 6.2.5 surface cold-hot cycle detection requirement in the standard of wood floors for LY/T1700-2007 ground heating as can be seen from the above results.
Two, the charring process of central layer is determined
It is 5 that the technological parameter of charing is tentatively groped, respectively 160 DEG C of (1) temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature); (2) 180 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 1h, 2h, 4h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 1h under maximum temperature); (3) 200 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 4h under maximum temperature); Finally cooling, insulating process.
Table 2 central layer charring process is determined
As can be seen from the above results except 180 DEG C, outside 2h, remaining technique can meet 6.3.2 dipping in the standard of GB/T18103-2013 solid wooden compound floor and peel off testing requirement to be placed in temperature by test specimen be that the hot water of 70 ± 3 DEG C is processed 2h, it is dry 3h in the drying box of 60 ± 3 DEG C that taking-up is placed on temperature, when dipping test specimen, test specimen should be submerged.
Following table is the warpage statistics that adopts the floor deformation of normal central layer and charing central layer.
The normal central layer floor flexural deformation situation of table 3
Table 4 charing central layer floor flexural deformation situation (1)
Table 5 charing central layer floor flexural deformation situation (2)
From above form, can find out, select the floor length of charing central layer and normal central layer and termination buckling deformation all in the critical field of GB/T18103-2013 solid wooden compound floor, up and down 1% of curved≤floor length, 0.2% of angularity≤floor, termination width, can there is not again wavy striped (being commonly called as " central layer ripple glaze ") in the surface that the most important thing is floor, especially after hot and humid simulation climate environment, still do not finding central layer ripple glaze, this improvement is very effective.
Beneficial effect
Charring solid wood composite floor board disclosed in this invention and production technology thereof, with timber, especially precious timber, fast growing wood plate etc. are primary raw material, collection timber, especially fast, the heat stability of precious timber aesthetic look and composite floor board heat conduction is better than one, timber, particularly precious timber and artificial fast-growing woods resource are rationally utilized; In structure design, take into full account determining of key element, especially the central layer charring process such as heat transfer, distortion and cracking, made that the charring solid wood composite floor board flexural deformation of making is little, floor cracking risk reduces, there is wide future develop.
Brief description of the drawings
Fig. 1 is the structural representation of central layer charing three-layer wood composite flooring;
Fig. 2 is the sectional view of central layer charing three-layer wood composite flooring central layer 3;
Wherein, each component names is respectively: 1, dash board, 2, central layer, 3, base plate.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Embodiment 1
A kind of central layer charing three-layer wood composite flooring, is formed by dash board 1, central layer 2 and base plate 3 gummeds successively, and described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain; Described dash board 1 is toothed oak wood, and its thickness is 1～4mm, and central layer 2 thickness are 6～9mm, and base plate 3 thickness are 1～3mm; Described central layer 2 is spliced by dragon spruce central layer bar, the charring process of dragon spruce is 160 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature).
Embodiment 2
A kind of central layer charing three-layer wood composite flooring, is formed by dash board 1, central layer 2 and base plate 3 gummeds successively, and described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain; Described dash board 1 is look wood, and its thickness is 1～4mm, and central layer 2 thickness are 6～9mm, and base plate 3 thickness are 1～3mm; Described central layer 2 is spliced by poplar central layer bar.The charring process of poplar is 180 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 1h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 1h under maximum temperature).
Embodiment 3
A kind of central layer charing three-layer wood composite flooring, is formed by dash board 1, central layer 2 and base plate 3 gummeds successively, and described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain; Described dash board 1 is black walnut, and its thickness is 1～4mm, and central layer 2 thickness are 6～9mm, and base plate 3 thickness are 1～3mm; Described central layer 2 is spliced by pinus sylvestris var. mongolica lath, 180 DEG C of carbonization temperatures (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature).
Embodiment 4
A kind of central layer charing three-layer wood composite flooring, is formed by dash board 1, central layer 2 and base plate 3 gummeds successively, and described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain; Described dash board 1 is husky Billy, and its thickness is 1～4mm, and central layer 2 thickness are 6～9mm, and base plate 3 thickness are 1～3mm; Described central layer 2 is spliced by fir core plate bar, 180 DEG C of carbonization temperatures (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 4h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 4h under maximum temperature).
Embodiment 5
A kind of central layer charing three-layer wood composite flooring, is formed by dash board 1, central layer 2 and base plate 3 gummeds successively, and described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain; Described dash board 1 is birch, and its thickness is 1～4mm, and central layer 2 thickness are 6～9mm, and base plate 3 thickness are 1～3mm; Described central layer 2 is spliced by poplar central layer bar, 200 DEG C of carbonization temperatures (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature).
Embodiment 6
A kind of central layer charing three-layer wood composite flooring, is formed by dash board 1, central layer 2 and base plate 3 gummeds successively, and described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain; Described dash board 1 is cherry, and its thickness is 2mm, and central layer 2 thickness are 8mm, and base plate 3 thickness are 2mm; Described central layer 2 is spliced by fir core plate bar, 160 DEG C of carbonization temperatures (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature).
Embodiment 7
A kind of central layer charing three-layer wood composite flooring, formed by dash board 1, central layer 2 and base plate 3 gummeds successively, described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain, described dash board 1 is husky Billy, its thickness is 3mm, central layer 2 thickness are 6mm, and base plate 3 thickness are 2mm; Described central layer 2 is by pinus sylvestris var. mongolica central layer bar 160 DEG C of the carbonization temperatures (maximum temperature that while referring to heat treatment, dry bulb reaches) that are spliced, temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature).
Embodiment 8
A kind of dash board and central layer charing three-layer wood composite flooring, formed by dash board 1, central layer 2 and base plate 3 gummeds successively, described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain, described dash board 1 is toothed oak wood, its thickness is 2mm, central layer 2 thickness are 9mm, and base plate 3 thickness are 2mm; Described central layer 2 is spliced by fir core plate bar, dash board charring process is 200 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 2h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 2h under maximum temperature).
Embodiment 9
A kind of dash board and central layer charing three-layer wood composite flooring, formed by dash board 1, central layer 2 and base plate 3 gummeds successively, described dash board 1, central layer 2 and base plate 3 carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain, described dash board 1 is husky Billy, its thickness is 2mm, central layer 2 thickness are 9mm, and base plate 3 thickness are 2mm; Described central layer 2 is spliced by pinus sylvestris var. mongolica central layer bar, dash board charring process is 180 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 1h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 1h under maximum temperature).
Embodiment 10
The technique of producing central layer charring solid wood composite floor board, comprises following processing step:
A, prepare dash board: choose high-quality hard wooden seeds as raw material, shear sorting and be processed into sheet material, utilize vacuum dry kiln or conventional kiln drying (kd) dry, moisture content is 5～8%;
B, prepare central layer: charing central layer treatment process is 180 DEG C of temperature (maximum temperature that while referring to heat treatment, dry bulb reaches), temperature retention time 4h (referring to the retention time under maximum temperature), oxygen content was 2% (referring to the oxygen content in retention time 4h under maximum temperature);
C, prepare base plate: utilize vacuum dry kiln or conventional kiln drying (kd) dry, moisture content is 5～6.5%, through sanding, shear the base plate of making desired thickness and breadth;
D, gluing, coating binder on the cemented surface of the good dash board of above-mentioned balance, central layer and base plate;
E, assembly and hot pressing: dash board, central layer and base plate are carried out to longitudinal, horizontal, longitudinal arrangement hot pressing interlaced with each other according to wood grain, dash board, central layer and three kinds of sheet materials of base plate that assembly is completed are put into hot press hot pressing, 93 ± 2 DEG C of hot pressing temperatures, hot pressing time 240s, hot pressing pressure 11～12kg/cm
2;
F, health 2-5d, temperature is controlled at 22～26 DEG C, and humidity is controlled at 38～45%, and plate surface temperature is down to room temperature;
G, subsides dash board, stick dash board hot pressing by the dash board in the slab after health through line, hot pressing time 390s, and 95 ± 3 DEG C of hot pressing temperatures, by the slab health 3～5d after hot pressing, after health finishes, accurately locate and carry out subdivision;
H, sanding are determined thick, fixed thick to the three-layer wood composite flooring after displaying with contact calibrating machine, thickness deviation ± 0.2mm;
I, mortise, open tongue and groove or snap close as required;
J, paint, at the bottom of water-based at the bottom of the priming paint → wear-resistant primer → hardening primer → transparent priming → sanding of (painted) → anticracking → 2 road finish paints;
K, adhesive tape flap, painted and carried out forward joint tongue flap operation of floor with adhesive tape afterwards, and adhesive tape can not exceed floor positive and negative;
L, the packaging such as test.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes manual of the present invention to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a charring solid wood composite floor board, formed by dash board (1), central layer (2) and base plate (3) gummed successively, it is characterized in that, described dash board (1), central layer (2) and base plate (3) carry out longitudinal, horizontal, longitudinal arrangement interlaced with each other according to wood grain, described central layer (2) is through charing processing, dash board (1) and or base plate (3) also through charing processing.
2. charring solid wood composite floor board according to claim 1, is characterized in that, described dash board (1) thickness is 1 ~ 4mm, and central layer (2) thickness is 6 ~ 9mm, and base plate (3) thickness is 1 ~ 3mm.
3. charring solid wood composite floor board according to claim 1 and 2, is characterized in that, described central layer (3) is arranged and formed in the longitudinal direction by strip central layer.
4. charring solid wood composite floor board according to claim 1, is characterized in that, described dash board (1) can be toothed oak wood, black walnut, cherry, look wood, birch or husky Billy.
5. charring solid wood composite floor board according to claim 1, is characterized in that, described central layer (2) can be dragon spruce, pinus sylvestris var. mongolica, poplar or China fir.
6. the production technology of producing charring solid wood composite floor board as described in above-mentioned arbitrary claim, is characterized in that, comprises the steps:
A, prepare dash board (1): choose high-quality hardwood seeds, shear sorting and be processed into sheet material, utilize vacuum dry kiln or conventional kiln drying (kd) dry, moisture content reaches 5 ~ 8%, 140 ~ 220 DEG C of then charing treatment temperatures, carbonization time 0.5h ~ 2h, oxygen content 2 ~ 20%;
B, prepare central layer (2): conventional drying, charing treatment temperature is at 160 ~ 200 DEG C, wherein 160 DEG C of processing time 2h, 180 DEG C of processing times are processed 2h, oxygen content 2 ~ 20% for can be 1h, 2h, 4h or 200 DEG C;
C, prepare base plate (3): utilize vacuum dry kiln or conventional kiln drying (kd) dry, making base plate moisture content is 5 ~ 6.5%, through sanding, shear the base plate of making desired thickness and breadth;
D, gluing: coating binder on the cemented surface of the good dash board of balance (1) and base plate (3), described dash board (1) one side coating weight 140 ~ 160 g/m
2, base plate (3) coating weight 140 ~ 170 g/m
2;
E, assembly and hot pressing: dash board (1), central layer (2) and base plate (3) are carried out to longitudinal, horizontal, longitudinal arrangement assembly interlaced with each other according to wood grain, then put into hot press hot pressing, 93 ± 2 DEG C of hot pressing temperatures, hot pressing time 240s, hot pressing pressure 11 ~ 12 kg/cm
2;
F, health: the sheet material after assembly hot pressing is inserted to 2 ~ 5d between health, 22 ~ 26 DEG C of temperature, humidity 38 ~ 45%, then shifts out, and treats that plate surface temperature balance is to room temperature;
G, sanding are determined thick: fixed thick to the three-layer wood composite flooring after displaying health with contact calibrating machine, and thickness deviation ± 0.2mm;
H, mortise: open as required tongue and groove or snap close;
I, paint: at the bottom of the priming paint → wear-resistant primer → hardening primer → transparent priming → sanding of aqueous priming paint → elastic break-preventing → 2 road finish paints;
J, adhesive tape flap: painted and carried out forward joint tongue flap operation of floor with adhesive tape afterwards, adhesive tape can not exceed floor positive and negative;
K, the packaging such as test.
7. the production technology of charring solid wood composite floor board according to claim 6, is characterized in that, in described step C, base plate can carry out charing processing as required.
8. the production technology of charring solid wood composite floor board according to claim 6, is characterized in that, described dash board (1) can be toothed oak wood, black walnut, cherry, look wood, birch or husky Billy.
9. the production technology of charring solid wood composite floor board according to claim 6, is characterized in that, described central layer (2) can be dragon spruce, pinus sylvestris var. mongolica, poplar or China fir.
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| CN104963481A (en) * | 2015-08-03 | 2015-10-07 | 大亚(江苏)地板有限公司 | Anti-cracking floor heating solid wood composite floor and production method thereof |
| CN105382888A (en) * | 2015-11-18 | 2016-03-09 | 广德县常丰竹木业制品有限公司 | Machining process method for plywood |
| CN106193526A (en) * | 2016-08-30 | 2016-12-07 | 大亚(江苏)地板有限公司 | Four-layer real-wood combined floor floor |
| CN107297808A (en) * | 2017-08-24 | 2017-10-27 | 安徽钰锦生态木材料有限公司 | A kind of preparation method of three layers of composite floor board |
| CN107486915A (en) * | 2017-08-03 | 2017-12-19 | 浙江云峰莫干山地板有限公司 | A kind of production technology of two layer solid wood floors of floor heating |
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| CN104314279A (en) * | 2014-11-18 | 2015-01-28 | 大亚(江苏)地板有限公司 | Cryptomeria fortunei three-layer solid wood composite floor and preparation method thereof |
| CN104963481A (en) * | 2015-08-03 | 2015-10-07 | 大亚(江苏)地板有限公司 | Anti-cracking floor heating solid wood composite floor and production method thereof |
| CN104963481B (en) * | 2015-08-03 | 2019-01-29 | 大亚(江苏)地板有限公司 | Anticracking floor-heating solid-wood composite floor and its production method |
| CN105382888A (en) * | 2015-11-18 | 2016-03-09 | 广德县常丰竹木业制品有限公司 | Machining process method for plywood |
| CN106193526A (en) * | 2016-08-30 | 2016-12-07 | 大亚(江苏)地板有限公司 | Four-layer real-wood combined floor floor |
| CN107486915A (en) * | 2017-08-03 | 2017-12-19 | 浙江云峰莫干山地板有限公司 | A kind of production technology of two layer solid wood floors of floor heating |
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| CN108049595A (en) * | 2018-01-29 | 2018-05-18 | 浙江贝亚克木业有限公司 | A kind of stable and firm frame structure substrate and production technology |
| CN108824744A (en) * | 2018-06-29 | 2018-11-16 | 苏州燕泥地热地板科技有限公司 | Solid wood and micro- charing composite floor |
| CN111805639A (en) * | 2020-06-30 | 2020-10-23 | 江苏茂诚木业股份有限公司 | Preparation method of high-stability two-layer composite solid wood floor |
| CN113715123A (en) * | 2021-05-11 | 2021-11-30 | 玛格家居股份有限公司 | Structure and processing method of solid wood product |
| CN113183258A (en) * | 2021-05-21 | 2021-07-30 | 大亚(江苏)地板有限公司 | Production process of solid wood composite floor with surface plate made of stabilized wood and floor made of solid wood composite floor |
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