CN100999951A - Strengthening type three-layered wood compound floor board and mfg. method thereof - Google Patents
Strengthening type three-layered wood compound floor board and mfg. method thereof Download PDFInfo
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- CN100999951A CN100999951A CN 200610086624 CN200610086624A CN100999951A CN 100999951 A CN100999951 A CN 100999951A CN 200610086624 CN200610086624 CN 200610086624 CN 200610086624 A CN200610086624 A CN 200610086624A CN 100999951 A CN100999951 A CN 100999951A
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Abstract
The present invention relates to one kind of three-layer reinforced laminated wooden floor board and its making process. The three-layer reinforced laminated wooden floor board includes one surface wood layer, one core layer and one back layer adhered to the core layer, and has one chemical fiber non-woven fabric layer adhered between the core layer and the surface wood layer. The making process of the three-layer reinforced composite wooden floor board includes the following steps: making surface wood board, selecting core layer board, making back board, combination and pressing, splitting and balancing, and forming. Compared with available technology, the present invention has the advantages of raised adhesion strength, less cracking and high stability.
Description
Technical field
The present invention relates to building and ornament materials, particularly a kind of strengthening type three-layered wood compound floor board and preparation method thereof.
Background technology
The solid wooden compound floor of sandwich construction is used in various places at present, because it has environmental protection, not yielding, appreciation effect is good, long service life, characteristics such as price is relatively cheap, therefore widely people accept, what but the central layer of solid wooden compound floor mostly used at present is density board, for example China Patent No. is 200420030659.9, the utility model patent of " a kind of solid wood technology complex intensifying floor ", use high-density plate as the sandwich layer in the five-layer structure, its top layer, backing layer is the abrasion-proof paper of impregnated melamine, and what overlay between the high density central layer is micro veneer and balance layer; China Patent No. is 200320122776.8, the utility model patent of " a kind of composite floor board ", central layer is made up of one deck solid wood base material layer and two-layer density board, yet in use bonding as walking laminate of solid wooden compound floor both sheet surface layer and density board, the change list laminate of appropriateness ftractures easily along with season, and coming unglued, taking off and split appears in its sheet surface layer and middle layer plate easily.
Summary of the invention
The objective of the invention is to for overcoming top layer solid wood plate cracking and occurring easily taking off with middle layer plate and split a kind of strengthening type three-layered wood compound floor board of proposing and preparation method thereof technical scheme.
Technical scheme of the present invention is: a kind of strengthening type three-layered wood compound floor board, comprise top layer solid wood plate, middle layer plate and backboard, be pasted with nonwoven fabric of synthetic fibre at described middle layer plate upper surface by bonding agent, described top layer solid wood plate sticks on the nonwoven fabric of synthetic fibre by bonding agent; Described backboard sticks on the soffit of middle layer plate by bonding agent.
Described top layer solid wood plate is the thick hard wood of 0.3mm-4mm.
Described hard wood is oak or walnut or teak or seal eggplant wood or face cream pigeonpea or Jatoba or birch or maple or elm or Birch or hard maple wood.
Described middle layer plate is density board or plastic plate or shaving board.
Described nonwoven fabric of synthetic fibre specification is 10-50g/m
2
Described backboard is a softwood, and described softwood is pine or Eucalyptus or poplar;
A kind of preparation method of strengthening type three-layered wood compound floor board, its making step is:
A. make top layer solid wood plate; The dry sawing S4S of hard wood is become the solid wood plate, and the sawing of solid wood plate being become plate then is top layer solid wood plate, and top layer solid wood plate is put into the dry kiln drying, and its moisture content is controlled at kiln discharge behind the 7-9%, stand-by after one week through the sorting balance again;
B. select middle layer plate; Select for use high-density plate as middle layer plate, under normal temperature condition, conditioned time was greater than 5 days, and the control moisture content is between 4%-8% or select plastic plate and shaving board for use, and is stand-by;
C. make backboard; Select softwood for use, it is peeled into solid wood individual layer backboard after boiling, moisture content is controlled between the 4%-6%, and leveling, edging are stand-by then;
D. assembly and pressing; With the middle layer plate double spread that chooses, the middle layer plate that scribbles bonding adhesive simultaneously sticks on the back plate surface of making, use nonwoven fabric of synthetic fibre to stick on described middle layer plate another side, bonding adhesive can ooze out from nonwoven fabric of synthetic fibre, the top layer solid wood plate of making is sticked on nonwoven surface, to put into the pressing machine through the slab of organizing and be pressed into whole slab, stand-by;
E. burst and balance; The size of described slab base area slab material is sawn into the floor blank, places the floor blank more than 72 hours;
F. moulding; With the backboard and the top layer solid wood plate sanding surface of floor blank, processing tongue-and-groove and joint tongue.
Described nonwoven fabric of synthetic fibre specification is 10-50g/m
2..
Described hard wood is oak or walnut or teak or seal eggplant wood or face cream pigeonpea or Jatoba or birch or maple or elm or Birch or hard maple wood.
Described softwood is pine or Eucalyptus or poplar.
The present invention's advantage compared with prior art is:
1. improved the bond strength between three-layer wood composite flooring top layer solid wood plate and the middle layer plate, reduce the probability of top layer solid wood plate cracking, fill the deviation on the solid wood plate thickness of top layer, but also can save the cost that press when overlaying micro veneer or wooden skin need increase cushion pad;
2. because nonwoven fabric of synthetic fibre is added in the middle of top layer and the sandwich layer, can effectively prevent glue-line cracking, top layer facial cleft, floor stability improves 6 to 8 times.
Below in conjunction with drawings and Examples the present invention is made a detailed description.
Description of drawings
Fig. 1 is three layers of reinforced solid wooden compound floor structural representation of the present invention;
Fig. 2 analyses and observe enlarged diagram for three layers of reinforced solid wooden compound floor structure A-A of the present invention;
Fig. 3 is three layers of reinforced solid wooden compound floor manufacture craft flow chart of the present invention.
The specific embodiment
Referring to Fig. 1, Fig. 2, wherein, top layer solid wood plate 1 is assortments such as hard wood such as oak, walnut, teak, seal eggplant wood, face cream pigeonpea, Jatoba, birch, maple, elm, Birch, hard maple wood; That nonwoven fabric of synthetic fibre 2 adopts is 10-50g/m
2Nonwoven fabric of synthetic fibre; Middle layer plate 3 one sides scribble bonding agent and nonwoven, also through nonwoven top layer solid wood plate 1 are bonded together; Middle layer plate 3 another side gluings and backboard 4 bond together; Around middle layer plate 3, have floor tongue-and-groove 5 and floor tenon 6.
Referring to Fig. 2, three layers of reinforced solid wooden compound floor manufacture craft flow chart, wherein,
2-1 makes top layer solid wood plate; The dry sawing S4S of hard wood is become the solid wood plate, and the sawing of solid wood plate being become plate then is top layer solid wood plate, and top layer solid wood plate is put into the dry kiln drying, and its moisture content is controlled at kiln discharge behind the 7-9%, stand-by after one week through the sorting balance again;
Concrete steps are, with hard wood, assortments such as oak, walnut, teak, seal eggplant wood, face cream pigeonpea, Jatoba, birch, maple, elm, Birch, hard maple wood or bamboo for example, through predrying, it is air drying, the S4S sawing becomes the solid wood plate, and plate thickness is 2.5mm, and the thickness of plate is usually between 2-5mm; Then the plate slicing is become top layer solid wood plate, the thickness of top layer solid wood plate between 0.3-2mm, adopts 40 to 50 ℃ of hot-air seasonings usually, and its moisture content is controlled at 7-9%, and the solid wood lamina of oven dry is stand-by after one week through the sorting balance again;
2-2 selects middle layer plate; Select for use high-density plate as middle layer plate, under normal temperature condition, conditioned time was greater than 5 days, and the control moisture content is between 4%-8% or select plastic plate or shaving board for use, and is stand-by;
Concrete steps are that if select high-density plate, plain plate health is after 5 days under normal temperature condition, the control moisture content is between 4%-8%, select for use density board can reduce the stress of floor sandwich layer, effectively prevent the waveform that the sandwich layer stress deformation causes, and improve the intensity of sandwich layer.
2-3 makes backboard; Select softwood for use, it is peeled into solid wood individual layer backboard after boiling, moisture content is controlled between the 4%-6%, and leveling, edging are stand-by then;
Concrete steps are, select softwood for use, promptly pine or Eucalyptus or poplar are peeled into the solid wood lamina of thickness between 1mm-3mm with its boiling in 60 ℃ water after 12 hours, adopt heated-air drying kiln drying, moisture content to be controlled between the 4%-6%, then through leveling, edging;
2-4, assembly and pressing; With the middle layer plate double spread that chooses, the middle layer plate that scribbles bonding adhesive simultaneously sticks on the back plate surface of making, use nonwoven fabric of synthetic fibre to stick on described middle layer plate another side, bonding adhesive can ooze out from nonwoven fabric of synthetic fibre, the top layer solid wood plate of making is sticked on nonwoven surface, to put into the pressing machine through the slab of organizing and be pressed into whole slab, stand-by;
Concrete steps are that with the middle layer plate double spread stick that chooses, the backboard of making is bonded in the soffit of the middle layer plate that chooses, then with 25g/m
2(thickness is 0.12mm) nonwoven fabric of synthetic fibre sticks on the middle layer plate upper surface of gluing, generally selects 10-50g/m
2Nonwoven fabric of synthetic fibre and measure thickness more than 0.05mm, bonding adhesive sees through nonwoven fabric of synthetic fibre and oozes out, and the top layer solid wood plate of making is sticked on the nonwoven again, the slab that group is good was put into the press precompressed 15 minutes, unit pressure 10Kg/cm
2, the slab that will press is in advance put into hot press again, at 102 ℃ temperature, 12kg/cm
2Down compacting 390 seconds of pressure, three ply board base and nonwoven cloth force fit become complete slab after, stand-by; Paste polylith top layer solid wood plate and whole backboard piece on the middle layer plate.
Measure the nonwoven of thickness more than 0.05mm, certain filling and cushioning effect are arranged, can strengthen the bonding strength between top layer and the sandwich layer, and prevent the cracking of skin panel effectively, experiment shows, the floor that nonwoven is arranged, bonding strength are 2-4 times of directly gummed, and the skin panel cracking reduces.
Bonding adhesive adopts environmental protection glue, as the powdery urea-formaldehyde glue P4405 of Tai Er, and mixed modifier P5901 again, curing compound P5465 in 100: 10: 20 ratio, adds 56 parts of water again.
2-5, burst and balance; The size of described slab base area slab material is sawn into the floor blank, places the floor blank more than 72 hours;
Concrete steps are, slab that pressing is good was placed 24 hours, treated that bonding adhesive solidifies fully, was sawn into the floor blank according to board size practically then, the floor blank is placed equilibrium stress and moisture content more than 3 days, and the completed blank that so far is used to produce strengthening type three-layered wood compound floor board is finished.
2-6, moulding; With the backboard and the top layer solid wood plate sanding surface of floor blank, processing tongue-and-groove and tenon.
Concrete steps are with the backing layer and the dash board sanding of floor blank, to leave tongue-and-groove and tenon then.
Claims (10)
1. strengthening type three-layered wood compound floor board, it is characterized in that, comprise top layer solid wood plate, middle layer plate and backboard, be pasted with nonwoven fabric of synthetic fibre at described middle layer plate upper surface by bonding agent, described top layer solid wood plate sticks on the nonwoven fabric of synthetic fibre by bonding agent; Described backboard sticks on the soffit of middle layer plate by bonding agent.
2. strengthening type three-layered wood compound floor board according to claim 1 is characterized in that, described top layer solid wood plate is the thick hard wood of 0.3mm-4mm.
3. strengthening type three-layered wood compound floor board according to claim 1 is characterized in that, described hard wood is oak or walnut or teak or seal eggplant wood or face cream pigeonpea or Jatoba or birch or maple or elm or Birch or hard maple wood.
4. strengthening type three-layered wood compound floor board according to claim 1 is characterized in that, described middle layer plate is density board or plastic plate or shaving board.
5. strengthening type three-layered wood compound floor board according to claim 1 is characterized in that described backboard is a softwood, and described softwood is pine or Eucalyptus or poplar.
6. strengthening type three-layered wood compound floor board according to claim 1 is characterized in that, described nonwoven fabric of synthetic fibre specification is 10-50g/m
2
7. the preparation method of a strengthening type three-layered wood compound floor board is characterized in that, the step of this preparation method is:
A. make top layer solid wood plate; The dry sawing S4S of hard wood is become the solid wood plate, and the sawing of solid wood plate being become plate then is top layer solid wood plate, and top layer solid wood plate is put into the dry kiln drying, and its moisture content is controlled at kiln discharge behind the 7-9%, stand-by after one week through the sorting balance again;
B. select middle layer plate; Select for use high-density plate as middle layer plate, under normal temperature condition, conditioned time was greater than 5 days, and the control moisture content is between 4%-8% or select plastic plate and shaving board for use, and is stand-by;
C. make backboard; Select softwood for use, it is peeled into solid wood individual layer backboard after boiling, moisture content is controlled between the 4%-6%, and leveling, edging are stand-by then;
D. assembly and pressing; With the middle layer plate double spread that chooses, the middle layer plate that scribbles bonding adhesive simultaneously sticks on the back plate surface of making, use nonwoven fabric of synthetic fibre to stick on described middle layer plate another side, bonding adhesive can ooze out from nonwoven fabric of synthetic fibre, the top layer solid wood plate of making is sticked on nonwoven surface, to put into the pressing machine through the slab of organizing and be pressed into whole slab, stand-by;
E. burst and balance; The size of described slab base area slab material is sawn into the floor blank, places the floor blank more than 72 hours;
F. moulding; With the backboard and the top layer solid wood plate sanding surface of floor blank, processing tongue-and-groove and joint tongue.
8. the preparation method of strengthening type three-layered wood compound floor board according to claim 7, it is characterized in that described hard wood is oak or walnut or teak or seal eggplant wood or face cream pigeonpea or Jatoba or birch or maple or elm or Birch or hard maple wood.
9. the preparation method of strengthening type three-layered wood compound floor board according to claim 7 is characterized in that, described softwood is pine or Eucalyptus or poplar.
10. the preparation method of strengthening type three-layered wood compound floor board according to claim 7 is characterized in that, described nonwoven fabric of synthetic fibre specification is 10-50g/m
2
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| CNB2006100866245A CN100436733C (en) | 2006-06-23 | 2006-06-23 | Strengthening type three-layered wood compound floor board and mfg. method thereof |
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| CNB2006100866245A CN100436733C (en) | 2006-06-23 | 2006-06-23 | Strengthening type three-layered wood compound floor board and mfg. method thereof |
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