CN201863273U - Misplaced, mitered and recombined structural timber - Google Patents
Misplaced, mitered and recombined structural timber Download PDFInfo
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- CN201863273U CN201863273U CN2010202798297U CN201020279829U CN201863273U CN 201863273 U CN201863273 U CN 201863273U CN 2010202798297 U CN2010202798297 U CN 2010202798297U CN 201020279829 U CN201020279829 U CN 201020279829U CN 201863273 U CN201863273 U CN 201863273U
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- mitered
- timber
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- recombined
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Abstract
The utility model relates to misplaced, mitered and recombined structural timber, which comprises a plurality of layers of recombined timber mitered and extended in the longitudinal direction and assembled and glued along the grain direction, wherein the mitered parts are longitudinally arranged in a misplaced manner in the thickness direction. The recombined timber is produced as follows: small-diameter level timber with the diameter of 5cm to 10cm is cut into timber segments with the length of 180cm to 300cm, and then the wood fiber bundles with the diameter of 1mm to 5mm are formed by the timber segments through defibering, and finally the recombined timber is formed by the wood fiber bundles after gum dipping, drying, assembling and gluing. The structural timber overcomes the technical bottleneck that timber cannot be directly used as the structural timber due to the problems of low density, loosened structure, soft material, low strength and the like, and provides a new approach for the industrialization of timber.
Description
Technical field
The utility model belongs to wood-based plate and the manufacturing technology field thereof in the wood-based plate industry, relates to a kind of dislocation mitered recombination structure material.
Background technology
Along with the fast development that China timber buildings is used, driven China to the increasing rapidly of structural wood demand, to add up with town and country construction portion according to house, China's structural wood breach in 2007 is 4,000 ten thousand m
3Along with the continuous development of China's wooden frame structure and building, add that the Sichuan earthquake reconstruction needs 2,000 ten thousand m approximately with the material amount
3, to 2010, the structural wood breach of China will reach 9,000 ten thousand m
3Official claims according to federal government of Canada, the wooden frame structure that Canada has built up in the inland of China at present is about 300, plan is built 9000 again, estimate that annual wooden frame structure quantity of building will reach about 15000 in the coming five years of inland of China, this will bring huge market prospects for structure material.At present, the employed structural wood of wooden frame structure mainly is log, laminated veneer lumber and the laminated wood of big footpath level, do not adopt timber to make structural wood as yet, its main cause: timber ubiquity footpath level is little, and density is low, and it is many to scab, short texture, defectives such as material is soft, and intensity is low can not be directly used in structural wood.Along with China artificial forest is cultivated the expansion of area and the raising of the level of cultivation, the artificial forest resource of China is very abundant, no matter cultivating area still is that output all occupies first place in the world, the area of China artificial forest reaches 5,326 ten thousand hectares at present, can provide every year timber 9670 ten thousand steres, and the standing crop increment is at 4.97 hundred million m
3More than/the a, consumption is about 70% of an increment; How effectively utilizing the artificial forest wood of China, make its performance meet or exceed the performance of natural high-quality timber, is the bottleneck technology of China's forestry and forestry products processing.
Summary of the invention
The purpose of this utility model is to improve the deficiency in the existing technology, and a kind of dislocation mitered recombination structure material is provided, and makes its physical and mechanical property satisfy the structural wood performance demands.
For achieving the above object, the utility model is taked following process technology scheme:
The dislocation mitered recombination structure material that the utility model provides, it comprises the reorganization wood of several layers of vertical mitered spreading, form by rift grain direction assembly, gummed, described mitered position is in the thickness direction arrangement that longitudinally misplaces, and the wood fiber bundle gummed that described reorganization wood is 1mm-5mm by several elongated diameters forms.
Described dislocation mitered recombination structure material, the thickness of the miter at its mitered position and the length ratio of miter are 1: 10-1: 20.
Described dislocation mitered recombination structure material, the used adhesive of its reorganization wood is a phenolic resin adhesive.
Described dislocation mitered recombination structure material, the used adhesive of its mitered position glue-line are two component isocyanate adhesives or resorcinol adhesive.
Described dislocation mitered recombination structure material, the used adhesive of glue-line is two component isocyanate adhesives or resorcinol adhesive between the reorganization wood of vertical mitered spreading.
The dislocation mitered recombination structure material that the utility model provides has adopted advanced fiber separation technology, timber is separated into the elongated wood fiber bundle that diameter is 1mm-5mm, under the situation of not destroying the fiber longitudinal strength, adhesive can be penetrated in the wood fibre equably.The reorganization wood that forms of gummed more after treatment, because the interaction of adhesive and wood fibre bundle makes original density low, short texture, it is wooden that the timber of many defectives such as material is soft, and intensity is low is processed into the timber reorganization with excellent mechanical performances and weather resistance.
The dislocation mitered recombination structure material that the utility model provides has adopted dislocation mitered technology, make timber after processing, can satisfy the requirement of structural wood large span, the dislocation assembly is passed through at the mitered position, when carrying, loading stress is disperseed, thereby satisfied the index request of structural wood mechanical property.
The dislocation mitered recombination structure material that the utility model provides is in mitered and splicing process, adopt promptly two component isocyanate adhesives of cold curing adhesive or resorcinol adhesive, can be as required in the thickness direction splicing of dislocation mitered recombination structure material, thereby satisfy the large-sized specification requirement of structural wood.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, is not to restriction of the present utility model, every any this area of being carried out according to the utility model disclosure be equal to replacement, all belong to protection domain of the present utility model.
Description of drawings
Fig. 1 is the wood fiber bundle aspect graph
Fig. 2 is the reorganization wood figure of vertical mitered spreading
Fig. 3 is dislocation mitered recombination structure material figure
The specific embodiment
(1) preparation of reorganization wood
With diameter is the small diameter grade timber of 5cm-10cm, be cut into the juggle of 190cm, through fiber separation, the wood fiber bundle that forms elongated diameter and be 1mm-2mm as shown in Figure 1, be placed in the drying kiln described wood fiber bundle dry, make its moisture content be controlled at 8%-11%, afterwards, be immersed in solid content and be in 13% the phenolic resin adhesive, dip time is 3min, take out to drench do, impregnation resin content is controlled at about 14%, it is in 50 ℃ the dry kiln that the wood fiber bundle behind the dipping is placed on temperature, it is 10%-11% that the wood fiber bundle of being with glue is dried to its moisture content, mating formation into length by the rift grain direction is 190cm, and width is 130cm, and thickness is the slab of 15cm-18cm, the slab that paves sent in the hot press adopt coldly to advance-coldly go out technology, hot pressing pressure is 3MPa, and hot pressing temperature is 160 ℃, and temperature retention time is 1.2mm/min.The setting thickness of reorganization wood is 28mm, and setting density is 0.85g/cm
3With described reorganization wood through cutting edge, saw cut, processing such as sanding grows into 180cm, width is 27cm, thickness is that the rectangular reorganization of 25mm is wooden.
(2) mitered
The two ends employing of above-mentioned rectangular reorganization wood is machined into miter, and the thickness at mitered position and the length ratio of miter are 1: 15.Two component isocyanate adhesives or resorcinol adhesive are applied to miter equably, and resin added is 120g/m
2, 8 reorganization wood that rectangular reorganization wood glue composition length is vertical mitered spreading of 14.4m, as shown in Figure 2.
(3) splicing
Two component isocyanate adhesives or resorcinol adhesive are applied to the upper and lower surface of the reorganization wood of described vertical mitered spreading equably, and resin added is 120g/m
2, with behind 8 described gluings vertically the reorganization of mitered spreading wood press the rift grain direction, make the mitered position at the assembly that longitudinally misplaces at thickness direction, compose the mitered recombination structure material that misplaces, as shown in Figure 3.
(4) post-processed
With described gummed back timber recombination structure wood through cutting edge, saw cut, operation such as sanding, being processed into length is 12m, width is 25cm, thickness is the dislocation mitered recombination structure material of 18cm.
Claims (5)
1. mitered recombination structure material misplaces, it is characterized in that: it comprises the reorganization wood of several layers of vertical mitered spreading, form by rift grain direction assembly, gummed, described mitered position is in the thickness direction arrangement that longitudinally misplaces, and the wood fiber bundle gummed that described reorganization wood is 1mm-5mm by several elongated diameters forms.
2. according to the described dislocation mitered of claim 1 recombination structure material, it is characterized in that: the thickness of the miter at its mitered position and the length ratio of miter are 1: 10-1: 20.
3. according to the described dislocation mitered of claim 1 recombination structure material, it is characterized in that: the used adhesive of its reorganization wood is a phenolic resin adhesive.
4. according to the described dislocation mitered of claim 1 recombination structure material, it is characterized in that: the used adhesive of its mitered position glue-line is two component isocyanate adhesives or resorcinol adhesive.
5. according to the described dislocation mitered of claim 1 recombination structure material, it is characterized in that: the used adhesive of glue-line is two component isocyanate adhesives or resorcinol adhesive between the reorganization wood of vertical mitered spreading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202798297U CN201863273U (en) | 2010-08-03 | 2010-08-03 | Misplaced, mitered and recombined structural timber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202798297U CN201863273U (en) | 2010-08-03 | 2010-08-03 | Misplaced, mitered and recombined structural timber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201863273U true CN201863273U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202798297U Expired - Fee Related CN201863273U (en) | 2010-08-03 | 2010-08-03 | Misplaced, mitered and recombined structural timber |
Country Status (1)
| Country | Link |
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| CN (1) | CN201863273U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231424A (en) * | 2013-04-25 | 2013-08-07 | 安徽宏宇竹木制品有限公司 | Hollow bamboo based fiber composite structure materials and production method thereof |
| CN103231425A (en) * | 2013-04-25 | 2013-08-07 | 安徽宏宇竹木制品有限公司 | Large-specification recombination composite structural wood and manufacturing method thereof |
| CN114311181A (en) * | 2020-09-29 | 2022-04-12 | 江苏福瑞康木业有限公司 | Method for manufacturing plywood by obliquely grinding and lapping wood middle plate |
-
2010
- 2010-08-03 CN CN2010202798297U patent/CN201863273U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231424A (en) * | 2013-04-25 | 2013-08-07 | 安徽宏宇竹木制品有限公司 | Hollow bamboo based fiber composite structure materials and production method thereof |
| CN103231425A (en) * | 2013-04-25 | 2013-08-07 | 安徽宏宇竹木制品有限公司 | Large-specification recombination composite structural wood and manufacturing method thereof |
| CN103231425B (en) * | 2013-04-25 | 2016-08-31 | 安徽宏宇竹木制品有限公司 | A kind of Large-specification recombination composite structural wood and manufacture method thereof |
| CN114311181A (en) * | 2020-09-29 | 2022-04-12 | 江苏福瑞康木业有限公司 | Method for manufacturing plywood by obliquely grinding and lapping wood middle plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20140803 |
|
| EXPY | Termination of patent right or utility model |