CN2442813Y - Crops stalk composite homogeneous board - Google Patents
Crops stalk composite homogeneous board Download PDFInfo
- Publication number
- CN2442813Y CN2442813Y CN 00220921 CN00220921U CN2442813Y CN 2442813 Y CN2442813 Y CN 2442813Y CN 00220921 CN00220921 CN 00220921 CN 00220921 U CN00220921 U CN 00220921U CN 2442813 Y CN2442813 Y CN 2442813Y
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- wood
- utility
- straw
- model
- glue
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- Expired - Fee Related
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Abstract
The utility model provides a crop stalk composite homogeneous board which takes annual cornstock or straw, poplar submarginal log and lop wood or processing remainders of a plywood workshop as raw material, wherein the surface layer of the utility model is wood crushed aggregates which are applied with phenolic resin glue or urea-formaldehyde resin glue, and the sandwich layer of the utility model is straw material which is applied with isocyanate glue. The utility model comprises the straw material and is characterized in that wood crushed aggregates 1 are surface layer material, and the straw material 2 is sandwich layer crushed aggregates.
Description
The utility model relates to a kind of homogeneous plate that agricultural crop straw (as wheat straw, straw) and wood composite are made.
Existing agricultural crop straw wood-based plate is that agricultural crop straw is ground into wood shavings or is processed into fiber, applies the isocyanate adhesive gummed usually and forms.Because isocyanate glue is easy to the metal bonding, need adopt special backing plate during hot pressing, has increased process complexity.
The purpose of this utility model then is the problem that exists at above-mentioned prior art, providing a kind of is raw material with annual wheat straw or straw and poplar small dimension wood, brush wood or glued board workshop industrial wood waste, making a kind of top layer is the wood particulate that applies phenolic resin glue or urea-formaldehyde resin glue, and sandwich layer is the agricultural crop straw composite homogeneity plate that applies the stalk material of isocyanate glue.
The purpose of this utility model can reach by following measure:
A kind of agricultural crop straw composite homogeneity plate comprises stalk material, it is characterized in that wood particulate 1 is skin-material, and stalk material 2 is the sandwich layer particle.
The purpose of this utility model can also reach by following measure:
Wood particulate 1 and stalk material 2 all are ground into the slender type wood shavings.
The utility model has following advantage compared to existing technology:
1. be the compound homogeneous plate of making of skin-material and stalk material with the wood particulate, can make composite board both possess the characteristics of wood materials, production cost has obvious decline than wooden flake board and medium density fibre board (MDF) simultaneously.
2. the timber clad can is adopted on the surface, because timber can adopt phenolic resin glue or urea-formaldehyde resin glue to carry out glue laminated, therefore can solve the haftplatte problem because of adopting isocyanate adhesive to cause.
3. after common wooden Flakeboard Product Line being carried out necessary transformation, just can produce agricultural crop straw composite homogeneity plate.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further described:
Get the raw materials ready: stalk material 2 is selected annual wheat straw or straw for use, and root can not contain earth, and raw material is wanted safe storage, and it is rotten to prevent to make moist.Wood raw material is selected poplar small dimension wood, brush wood or glued board workshop industrial wood waste for use.Pulverize: wood raw material is whittled into wood chip by wood chipping equipment earlier, is processed into wood shavings through ring flaker, is ground into wood particulate 1 through sander again.Stalk material 2 is directly pulverized through pulverizer.Dry: with the rotator type drying machine particle being dried to moisture content is 3～5%.Be equipped with two drying machines dry stalk material 2 and wood particulate 1 respectively.Sorting: carry out the particle sorting with rotary strainer, it is broken again to be sent to desintegrator after excessive particle is separated, and qualified particle is sent to feed bin and stores.Applying glue: dried timber particle 1 separates through the glue mixing of ring type glue mixer with crushed straw aggregate 2, and glue consumption is as follows: urea-formaldehyde resin glue is 10～10%, and phenolic resin glue is 7～8%.Isocyanate glue is 5～6%.Mat formation: mat formation with mechanical forming machine.Adopt three spreading heads, former and later two spreading heads wood particulate 1 of mating formation, the middle spreading head crushed straw aggregate 2 of mating formation.Hot pressing: adopt single-layer hot press to carry out hot pressing.About 180～200 ℃ of hot pressing temperatures, hot pressing pressure is 3～4Mpa, and hot pressing time is 30～50s/mm thickness of slab.Can adopt multi-daylight press and continuous hot press in addition.Post processing: comprise cooling, cutting edge and sanding operation.
The performance of table 1 agricultural crop straw composite homogeneity plate
| Performance | Unit | Test result |
| Density moisture content MOR internal bond strength thickness swelling rate | g/cm 3 ％ Mpa Mpa ％ | 0.70 8％ 18 0.38 4.5 |
Agricultural crop straw composite homogeneity plate can substitute products such as particieboard and medium density fibre board (MDF) in sector applications such as interior decoration and furniture manufacturings.
Claims (2)
1. an agricultural crop straw composite homogeneity plate comprises stalk material, it is characterized in that wood particulate (1) is a skin-material, and stalk material (2) is the sandwich layer particle.
2. according to the described agricultural crop straw composite homogeneity of claim (1) plate, it is characterized in that wood particulate (1) and stalk material (2) all are ground into the slender type wood shavings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220921 CN2442813Y (en) | 2000-07-04 | 2000-07-04 | Crops stalk composite homogeneous board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220921 CN2442813Y (en) | 2000-07-04 | 2000-07-04 | Crops stalk composite homogeneous board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2442813Y true CN2442813Y (en) | 2001-08-15 |
Family
ID=33585886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220921 Expired - Fee Related CN2442813Y (en) | 2000-07-04 | 2000-07-04 | Crops stalk composite homogeneous board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2442813Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391706C (en) * | 2006-04-24 | 2008-06-04 | 南京林业大学 | Method for manufacturing combined wall using rice/wheat straw thermo-keeping material as inner core |
| CN101570034B (en) * | 2009-05-27 | 2011-07-20 | 江苏福鑫木业有限公司 | Process for producing poplar-branch formaldehyde-free density boards |
| CN102717413A (en) * | 2012-06-27 | 2012-10-10 | 上海交通大学 | Method for comprehensive utilization of sweet wormwood herb straws |
| CN105108868A (en) * | 2015-09-06 | 2015-12-02 | 南京林业大学 | Method for preparing particle board by using waste and old indoor heat-treated wood and particle board |
| CN105216089A (en) * | 2015-09-06 | 2016-01-06 | 南京林业大学 | Waste and old outdoor use heat-treated wood and conventional wood is utilized to prepare method and the thicker particieboard of thicker particieboard |
-
2000
- 2000-07-04 CN CN 00220921 patent/CN2442813Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391706C (en) * | 2006-04-24 | 2008-06-04 | 南京林业大学 | Method for manufacturing combined wall using rice/wheat straw thermo-keeping material as inner core |
| CN101570034B (en) * | 2009-05-27 | 2011-07-20 | 江苏福鑫木业有限公司 | Process for producing poplar-branch formaldehyde-free density boards |
| CN102717413A (en) * | 2012-06-27 | 2012-10-10 | 上海交通大学 | Method for comprehensive utilization of sweet wormwood herb straws |
| CN105108868A (en) * | 2015-09-06 | 2015-12-02 | 南京林业大学 | Method for preparing particle board by using waste and old indoor heat-treated wood and particle board |
| CN105216089A (en) * | 2015-09-06 | 2016-01-06 | 南京林业大学 | Waste and old outdoor use heat-treated wood and conventional wood is utilized to prepare method and the thicker particieboard of thicker particieboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |