CN218463177U - Multi-flame-retardant LVL laminated veneer lumber - Google Patents
Multi-flame-retardant LVL laminated veneer lumber Download PDFInfo
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- CN218463177U CN218463177U CN202222832777.7U CN202222832777U CN218463177U CN 218463177 U CN218463177 U CN 218463177U CN 202222832777 U CN202222832777 U CN 202222832777U CN 218463177 U CN218463177 U CN 218463177U
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Abstract
The utility model discloses a multiple fire-retardant LVL laminated veneer lumber, it includes: the wood-plastic composite board comprises a first thick veneer, a second thick veneer, a third thick veneer, a first wood grain film and a first waterproof flame-retardant film, wherein the first thick veneer is arranged above the second thick veneer, a first flame-retardant glue layer is arranged between the first thick veneer and the second thick veneer, the third thick veneer is arranged below the second thick veneer, a second flame-retardant glue layer is arranged between the third thick veneer and the second thick veneer, a third flame-retardant glue layer is arranged on the upper surface of the first thick veneer, the first waterproof flame-retardant film is arranged above the third flame-retardant glue layer, a fourth flame-retardant glue layer is arranged on the upper surface of the first waterproof flame-retardant film, and the first wood grain film is arranged above the fourth flame-retardant glue layer. Multiple fire-retardant LVL veneer laminated wood, carry out multiple fire-retardant through first wood grain membrane, the fire-retardant glue film of fourth, first waterproof fire-retardant film and the fire-retardant glue film of third, promoted flame retardant efficiency.
Description
Technical Field
The utility model relates to a LVL veneer layer laminated timber field especially relates to a multiple fire-retardant LVL veneer layer laminated timber.
Background
The LVL laminated veneer lumber usually comprises a plurality of thick veneers which are laminated and assembled along the grain direction and are subjected to hot-press gluing, can be sawed into plate-shaped materials with various specifications, and has wide application range. In addition, compared with solid wood, the LVL laminated veneer lumber improves the utilization rate of the thick veneer and has lower cost.
In order to improve the flame retardant effect, the LVL laminated veneer lumber is usually subjected to hot press gluing between two adjacent thick veneers by using a flame retardant adhesive, so that the use safety of the LVL laminated veneer lumber is improved while the gluing of the two adjacent thick veneers is realized. In the actual production process, the flame-retardant glue is unevenly coated on the surface of the thick veneer, the flaws on the surface of the thick veneer and the absorption and consumption of the thick veneer on the flame-retardant glue cause the problem of local glue shortage on the surface of the thick veneer, the overall flame-retardant effect is influenced, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multiple fire-retardant LVL laminated veneer lumber promotes holistic flame retardant efficiency, avoids because of the fire-retardant inefficacy problem that local starved caused.
To achieve the purpose, the utility model adopts the following technical proposal:
a multi-fire retardant LVL veneer laminate comprising: the wood-plastic composite board comprises a first thick veneer, a second thick veneer, a third thick veneer, a first wood grain film and a first waterproof flame-retardant film, wherein the first thick veneer is arranged above the second thick veneer, a first flame-retardant glue layer is arranged between the first thick veneer and the second thick veneer, the third thick veneer is arranged below the second thick veneer, a second flame-retardant glue layer is arranged between the third thick veneer and the second thick veneer, a third flame-retardant glue layer is arranged on the upper surface of the first thick veneer, the first waterproof flame-retardant film is arranged above the third flame-retardant glue layer, a fourth flame-retardant glue layer is arranged on the upper surface of the first waterproof flame-retardant film, and the first wood grain film is arranged above the fourth flame-retardant glue layer.
And a fifth flame-retardant adhesive layer is arranged on the bottom surface of the third thick veneer, and a second waterproof flame-retardant film is arranged below the fifth flame-retardant adhesive layer.
The first waterproof flame-retardant film and the second waterproof flame-retardant film are halogen-free flame-retardant PC films respectively.
And a sixth fuel glue layer is arranged on the bottom surface of the second waterproof flame-retardant film, and a second wood grain film is arranged below the sixth fuel glue layer.
And the first wood grain film and the second wood grain film are respectively made of flame-retardant PVC wood grain films.
And the first thick single plate, the second thick single plate and the third thick single plate are laminated along the grain direction.
The utility model has the advantages that: the utility model provides a multiple fire-retardant LVL veneer laminated timber, has added first waterproof fire-retardant film very much, has avoided the fire-retardant failure problem that local starved caused on the first thick veneer to carry out multiple fire-retardant through first wood grain membrane, the fire-retardant glue film of fourth, first waterproof fire-retardant film and the fire-retardant glue film of third, promoted holistic flame retardant efficiency greatly, can also carry out two-sided fire-retardant, the safety in utilization is higher.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1 to fig. 2.
The multi-flame retardant LVL laminated veneer lumber, as shown in fig. 1, comprises: first thick veneer 1, second thick veneer 2, third thick veneer 3, first wood grain membrane 4 and first waterproof fire-retardant film 12, first thick veneer 1 sets up the top at second thick veneer 2, as shown in fig. 2, be provided with first fire-retardant glue film 6 between first thick veneer 1 and the second thick veneer 2, first fire-retardant glue film 6 can adopt the fire-retardant glue of bayer tablet BR-885, can carry out the veneer of first thick veneer 1 and second thick veneer 2, can carry out fire-retardant again.
And arranging the third thick veneer 3 below the second thick veneer 2, and arranging a second flame-retardant adhesive layer 7 between the third thick veneer 3 and the second thick veneer 2 for gluing and flame-retarding. In this embodiment, the first thick single plate 1, the second thick single plate 2, and the third thick single plate 3 are laminated along the grain direction, and the thickness of the single plates is more than 3mm, so that the longitudinal mechanical property is enhanced.
As shown in fig. 2, a third flame-retardant adhesive layer 13 is disposed on the upper surface of the first thick veneer 1, the first waterproof flame-retardant film 12 is disposed above the third flame-retardant adhesive layer 13, the problem of flame-retardant failure caused by local adhesive shortage of the third flame-retardant adhesive layer 13 on the first thick veneer 1 is solved by the first waterproof flame-retardant film 12, and the requirement for the construction precision of the third flame-retardant adhesive layer 13 is lowered.
And a fourth flame-retardant adhesive layer 11 is arranged on the upper surface of the first waterproof flame-retardant film 12 to perform flame-retardant protection on the first waterproof flame-retardant film 12. In this embodiment, the first wood grain film 4 is disposed above the fourth flame retardant adhesive layer 11, so as to improve the decorative effect of the front surface.
In order to perform double-sided flame retardation, in this embodiment, the bottom surface of the third thick veneer 3 is provided with a fifth flame-retardant adhesive layer 8, and a second waterproof flame-retardant film 9 is arranged below the fifth flame-retardant adhesive layer 8, so as to avoid the problem of flame retardation failure caused by partial adhesive shortage of the fifth flame-retardant adhesive layer 8. The first waterproof flame-retardant film 12 and the second waterproof flame-retardant film 9 are respectively halogen-free flame-retardant PC films, so that the use is safer.
As shown in fig. 2, a sixth glue layer 10 is arranged on the bottom surface of the second waterproof and flame-retardant film 9, and a second wood grain film 5 is arranged below the sixth glue layer 10, so that the decorative effect of the back surface is improved. In this embodiment, the first wood grain film 4 and the second wood grain film 5 respectively adopt flame-retardant PVC wood grain films, so that the surface flame-retardant effect is improved, and multiple flame retardance is realized.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. A multi-flame retardant LVL laminated veneer lumber is characterized by comprising: the wood-plastic composite board comprises a first thick veneer, a second thick veneer, a third thick veneer, a first wood grain film and a first waterproof flame-retardant film, wherein the first thick veneer is arranged above the second thick veneer, a first flame-retardant glue layer is arranged between the first thick veneer and the second thick veneer, the third thick veneer is arranged below the second thick veneer, a second flame-retardant glue layer is arranged between the third thick veneer and the second thick veneer, a third flame-retardant glue layer is arranged on the upper surface of the first thick veneer, the first waterproof flame-retardant film is arranged above the third flame-retardant glue layer, a fourth flame-retardant glue layer is arranged on the upper surface of the first waterproof flame-retardant film, and the first wood grain film is arranged above the fourth flame-retardant glue layer.
2. The multi-flame-retardant LVL laminated veneer lumber according to claim 1, wherein a fifth flame-retardant adhesive layer is arranged on the bottom surface of the third thick veneer, and a second waterproof flame-retardant film is arranged below the fifth flame-retardant adhesive layer.
3. The multi-flame-retardant LVL laminated veneer lumber according to claim 2, wherein the first waterproof flame-retardant film and the second waterproof flame-retardant film are halogen-free flame-retardant PC films, respectively.
4. The multi-flame-retardant LVL laminated veneer lumber of claim 2, wherein a sixth fuel glue layer is arranged on the bottom surface of the second waterproof flame-retardant film, and a second wood-grain film is arranged below the sixth fuel glue layer.
5. The multi-flame-retardant LVL laminated veneer lumber according to claim 4, wherein the first wood grain film and the second wood grain film are respectively made of flame-retardant PVC wood grain films.
6. The multi-flame-retardant LVL laminated veneer lumber according to claim 1, wherein the first thick veneer, the second thick veneer and the third thick veneer are laminated in a grain-wise direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222832777.7U CN218463177U (en) | 2022-10-27 | 2022-10-27 | Multi-flame-retardant LVL laminated veneer lumber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222832777.7U CN218463177U (en) | 2022-10-27 | 2022-10-27 | Multi-flame-retardant LVL laminated veneer lumber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218463177U true CN218463177U (en) | 2023-02-10 |
Family
ID=85148616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222832777.7U Active CN218463177U (en) | 2022-10-27 | 2022-10-27 | Multi-flame-retardant LVL laminated veneer lumber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218463177U (en) |
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2022
- 2022-10-27 CN CN202222832777.7U patent/CN218463177U/en active Active
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