CN102896666A - Manufacturing method for composite artificial board (LVS) - Google Patents
Manufacturing method for composite artificial board (LVS) Download PDFInfo
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- CN102896666A CN102896666A CN 201110214365 CN201110214365A CN102896666A CN 102896666 A CN102896666 A CN 102896666A CN 201110214365 CN201110214365 CN 201110214365 CN 201110214365 A CN201110214365 A CN 201110214365A CN 102896666 A CN102896666 A CN 102896666A
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Abstract
The invention provides a manufacturing method for a composite artificial board (LVS), wherein plywoods, particleboards and medium-density (high-density) fibreboards have the insurmountable defects of easiness to warp, deform and crack, bad colouring property, incapacity of engraving and routing surface, and the like while having good mechanical strength respectively due to different composition units and different machining processes. The manufacturing method for a composite artificial board (LVS) comprises the following steps of: using medium-high density fibreboards as surface layers (a front board and a back board), and using multilayer plywoods or particleboards as the lining layer of a base material; before assembly for the composite artificial board (LVS), performing galling treatment on the thin-type medium-density (high-density) fibreboards at first, and then performing double-surface gluing on a core layer material, and finally conveying the fibreboards and the core layer material to a hot press to perform hot-pressing treatment. According to the invention, the problems of the common plywoods and particleboards are solved, the dimensional stability and the compressive strength of the board are improved, and the use fields of the composite board are extended and expanded. More importantly, via the composite artificial board (LVS), both large-diameter-class wood and small-diameter-class brushwood can be utilized, thus achieving the purpose of comprehensively utilizing a whole tree.
Description
One, technical field
The present invention relates to the manufacture method of a kind of combined artificial board material (LVS), the combined artificial board material (LVS) of producing with this manufacture method easily processes on its surface and to have Z-Correct bump mapping Z-correct or various engraving is engraved the dalle that mills decorative pattern.
Two, background technology
At present, widely used glued board, particieboard and in (height) density fiber board, its component units and processing technology are different.
Glued board is that log is peeled into a large veneer along the annual ring direction, the sheet material that forms by the orthogonal principle assembly of adjacent ply grain direction, gummed behind drying, the gluing.Its advantage is: intensity is large, and anti-bending strength is good.Shortcoming is: poor stability, easy warpage, bubbling, Local Cracking, and a large amount of large footpath level log of need of production consumption, waste timber resources.
Particieboard is the fragment that the raw material such as timber is cut into certain specification,, mixes with adhesive, curing agent, waterproofing agent a kind of artificial board that at a certain temperature compacting forms through super-dry.Its advantage is: laterally bearing capacity is good, surfacing, and texture is true to nature, and unit weight is even, and thickness error is little, and anti-pollution is ageing-resistant.Shortcoming is: inner for nutty structure, be not easy to mill type.In (height) density fiber board medium density fibre board (MDF) be take wood fibre or other plant fiber as raw material, through smash, fiber separation, dry after-applied Lauxite or other applicable adhesive, a kind of artificial board of after hot pressing, making again.Its advantage is that smooth surface is smooth, material is fine and closely woven, and toughness is better, is difficult for fracture, can make things convenient for moulding and mill type.Shortcoming is that plane tensile strength is lower.
Because glued board, particieboard and in (height) density fiber board in various degree exist shortcoming, thereby so that their scopes of application are subject to certain limitation.
Three, summary of the invention
Composite artificial board-LVS (Laminated Veneer Sandwich) is take multi-plywood or particieboard as the base material liner, slim in (height) density fiber board be a kind of composite of skin-material.Can solve the easy warpage of normal plywood and particieboard, distortion, cracking, tinctorial property poor, the surface can not be carved to engrave and the shortcoming such as be milled, simultaneously at aspects such as dimensional stability and compression strength, obviously be better than on its physical and mechanical property glued board, in (height) density fiber board or particieboard, its use field has also obtained extending and widening.The more important thing is combined artificial board material (LVS), large footpath level timber and small diameter grade brush wood are all utilized, thereby reach the purpose of full tree comprehensive utilization.
(1) the technical problem to be solved in the present invention
The present invention has mainly solved two technical problems: one is the optimization design problem of product structure; Another is the process route problem of determining composite artificial board.
(2) the technical solution adopted for the present invention to solve the technical problems
The present invention is on the optimization design problem that solves product structure, by the following technical solutions:
At first, with glued board, particieboard or LVL as core material, slim in (height) density fiber board carry out assembly for skin-material up and down.The structural design scheme of LVS production board sees Table 1;
Then, different according to sandwich layer and skin-material thickness are up and down carried out test number to composite artificial board, under identical hot pressing parameters, make the LVS production board.LVS composite molding hot pressing parameters sees Table 2;
At last, the LVS production board that difference is numbered carries out the indices test, determines the best group blank structure of combined artificial board material (LVS), and then realizes the optimal design of combined artificial board material.Every test result sees Table 3.
The present invention is on definite composite artificial board manufacturing process route problem, by the following technical solutions: 1, with veneer (according to the rift grain assembly) or particieboard as core material, skin-material about the conduct of (height) density fiber board carries out the one-shot forming technique that LVS is made in assembly hot pressing in slim; 2, first veneer (according to crisscross assembly) is carried out hot pressing and make multi-plywood, again with multi-plywood or particieboard as core material, skin-material about the conduct of (height) density fiber board carries out the secondary forming process that LVS is made in assembly hot pressing in slim; 3, the test by the LVS that makes under the different manufacturing process routes is carried out bonding strength, peels off the indices such as rate and elastic modelling quantity, the final manufacturing process of selecting the best.
The structural design scheme of table 1LVS production board
Table 2LVS composite molding hot pressing parameters
Table 3LVS indices test value
(3) beneficial effect of the present invention
Main effect of the present invention is: 1, can make full tree obtain fully rationally utilizing, thereby avoid using too much large footpath level log, the large footpath level timber resources that both had been conducive to conserve forests has increased new varieties for wood-based plate family again; 2, since China multi-plywood and in the total production capacity of (height) density fiber board be tending towards saturated, portioned product occurs unsalable at present, so the LVS composite has been expanded multi-plywood, particieboard and in the use approach of (height) density fiber board, can effectively promote China's wood processing industry to develop in a healthy way; 3, the production technology that relates to of LVS and lectotype selection rationally, reliable, just can produce combined artificial board material LVS at lower need of the prerequisite that does not affect base material production addition portion subset.
Four, description of drawings
Fig. 1 is LVS production board structural representation; Among the figure 1 be in (height) density fiber board, the 2nd, multi-plywood, LVL or particieboard, the 3rd, glue-line.Wherein multi-plywood is the crisscross assembly of veneer, and LVL all is veneer rift grain assembly.
Fig. 2 is LVS one-shot forming technique route map;
Fig. 3 is LVS secondary forming process route map.
Five, the specific embodiment
1, high, the bonding strength of the present invention's LVS product quality of adopting secondary forming process to make and peel off rate and the indices such as elastic modelling quantity better, secondary forming process is easier to the location, top layer up and down in addition, so the present invention mainly adopts the secondary forming process method to make LVS.
2, test result shows, tested number is that 4 structural parameters and hot pressing parameters thereof are more satisfactory, and the MOR of its vertical direction, internal bond strength are all high than other tested number products.Its thickness swelling rate is also lower, so the present invention mainly adopts structural parameters and the hot pressing parameters of No. 4 experimental programs.
Claims (4)
1. the invention provides the manufacture method of a kind of combined artificial board material (LVS), do the base material liner with particieboard or multi-plywood, (height) density fiber board is done plane materiel and is made combined artificial board material in 2-3 millimeter slim, it is characterized in that: be as core material take multi-plywood or particieboard, LVL, in thick or slim middle density tabulation plate material, both are combined with each other through gluing, assembly, make by high temperature hot pressing.
2. combined artificial board material according to claim 1 (LVS) manufacture method, it is characterized in that: before the assembly, adopt 60-80 order abrasive band that (height) density fiber board in slim is carried out plucking and process, then core material is carried out double spread, glue-spread is controlled at 280g/cm
2, to send hot press to and carry out hot pressing, hot pressing time is 30s/mm, pressure is 1Mp/cm
2, its hot pressing temperature is 100 ℃ when adopting urea-formaldehyde resin adhesive, its hot pressing temperature is 140 ℃ when adopting phenolic resin glue.
3. combined artificial board material according to claim 1 (LVS) manufacture method is characterized in that: utilize the post forming method, in the preparation process of core material glued board, adopt the crisscross assemble pattern of veneer to carry out assembly.
4. combined artificial board material according to claim 1 (LVS) manufacture method, it is characterized in that: 3mmMDF, 12mm glued board, 3mmMDF are carried out plucking, gluing, assembly, and sizing material is urea-formaldehyde resin adhesive, and pressure is 1.1Mp/cm
2, hot pressing temperature is 100 ℃, hot pressing time is 480s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110214365 CN102896666A (en) | 2011-07-29 | 2011-07-29 | Manufacturing method for composite artificial board (LVS) |
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| CN 201110214365 CN102896666A (en) | 2011-07-29 | 2011-07-29 | Manufacturing method for composite artificial board (LVS) |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415456A (en) * | 2015-11-24 | 2016-03-23 | 山东东宇鸿翔柜橱材料有限公司 | Mechanical ecological board and manufacturing method thereof |
| CN106827107A (en) * | 2017-01-25 | 2017-06-13 | 广东耀东华装饰材料科技有限公司 | A kind of manufacture method of anti-surface checking synchronous grain-matched veneered plywood |
| CN107020672A (en) * | 2017-06-20 | 2017-08-08 | 合肥睐格包装科技有限公司 | A kind of manufacture craft of loose bamboo clappers |
| CN107297932A (en) * | 2017-06-28 | 2017-10-27 | 贵州剑河园方林业投资开发有限公司 | A kind of high strength multi-layer wooden structures material and preparation method thereof |
| CN108316601A (en) * | 2018-03-20 | 2018-07-24 | 安徽扬子地板股份有限公司 | Composite floor board and preparation method thereof |
| CN108356929A (en) * | 2018-03-16 | 2018-08-03 | 广东始兴县华洲木业有限公司 | A kind of production method of new type compound glued board |
| CN108406980A (en) * | 2018-03-19 | 2018-08-17 | 广东始兴县华洲木业有限公司 | A kind of production method of new type compound core-board |
| CN108656248A (en) * | 2018-05-14 | 2018-10-16 | 福建和其祖林业科技有限公司 | A kind of high ratio of strength to weight composite structural artificial plate and its preparation method and application |
| CN113370621A (en) * | 2021-05-28 | 2021-09-10 | 山东千森木业集团有限公司 | Aldehyde-free paint-free plate and production method thereof |
| CN115107121A (en) * | 2022-07-25 | 2022-09-27 | 江苏超能新材料科技有限公司 | Preparation method of LVS structure plywood |
-
2011
- 2011-07-29 CN CN 201110214365 patent/CN102896666A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415456A (en) * | 2015-11-24 | 2016-03-23 | 山东东宇鸿翔柜橱材料有限公司 | Mechanical ecological board and manufacturing method thereof |
| CN106827107A (en) * | 2017-01-25 | 2017-06-13 | 广东耀东华装饰材料科技有限公司 | A kind of manufacture method of anti-surface checking synchronous grain-matched veneered plywood |
| CN107020672A (en) * | 2017-06-20 | 2017-08-08 | 合肥睐格包装科技有限公司 | A kind of manufacture craft of loose bamboo clappers |
| CN107297932A (en) * | 2017-06-28 | 2017-10-27 | 贵州剑河园方林业投资开发有限公司 | A kind of high strength multi-layer wooden structures material and preparation method thereof |
| CN107297932B (en) * | 2017-06-28 | 2019-07-26 | 贵州剑河园方林业投资开发有限公司 | A kind of high strength multi-layer wooden structures material and preparation method thereof |
| CN108356929A (en) * | 2018-03-16 | 2018-08-03 | 广东始兴县华洲木业有限公司 | A kind of production method of new type compound glued board |
| CN108406980A (en) * | 2018-03-19 | 2018-08-17 | 广东始兴县华洲木业有限公司 | A kind of production method of new type compound core-board |
| CN108316601A (en) * | 2018-03-20 | 2018-07-24 | 安徽扬子地板股份有限公司 | Composite floor board and preparation method thereof |
| CN108656248A (en) * | 2018-05-14 | 2018-10-16 | 福建和其祖林业科技有限公司 | A kind of high ratio of strength to weight composite structural artificial plate and its preparation method and application |
| CN113370621A (en) * | 2021-05-28 | 2021-09-10 | 山东千森木业集团有限公司 | Aldehyde-free paint-free plate and production method thereof |
| CN115107121A (en) * | 2022-07-25 | 2022-09-27 | 江苏超能新材料科技有限公司 | Preparation method of LVS structure plywood |
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Application publication date: 20130130 |