CN107042570A - The production method and product of a kind of low density fiberboard - Google Patents
The production method and product of a kind of low density fiberboard Download PDFInfo
- Publication number
- CN107042570A CN107042570A CN201710196966.0A CN201710196966A CN107042570A CN 107042570 A CN107042570 A CN 107042570A CN 201710196966 A CN201710196966 A CN 201710196966A CN 107042570 A CN107042570 A CN 107042570A
- Authority
- CN
- China
- Prior art keywords
- fiber
- hot pressing
- glue
- defibrator
- production method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0263—Mixing the material with binding agent by spraying the agent on the falling material, e.g. with the material sliding along an inclined surface, using rotating elements or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/20—Moulding or pressing characterised by using platen-presses
- B27N3/203—Moulding or pressing characterised by using platen-presses with heating or cooling means
Abstract
The present invention is intended to provide the production method and product of a kind of low density fiberboard, its production stage are as follows：A) after wood fibre is separated, screened, electrical heating is steamed, handled through defibrator grinding chamber body and fiber is made；B) fiber of the defibrator grinding chamber body output, output to the blow line being connected with defibrator；C) ecological glue isocyanate glue is sprayed on fiber by being glued the porch that pump is pumped into blow line, adhesive through high pressure nozzle, with the fiber of the output mix and uniform；D) enter after the fiber is well mixed with the adhesive and be dried in drying duct；E) after drying, the fiber after applying glue is handled is again through carrying out hot pressing on hot press；The step a) will be 400 500kg/m through the mach fibril materials applied amount of defibrator process3；The ecological glue isocyanate glue resin addeds of the step c) are 40 55kg/m3；Step e) the hot pressing pressures are 2 150kg/cm2, the 140mm/s of hot pressing speed 110,207 260 DEG C of hot pressing temperature.The low-density plank burst size of methanal that the present invention is produced is low, and sheet metal thickness is high, and water resistance is good.
Description
Technical field
The invention belongs to fiberboard technical field, it is related to the production method and product of a kind of low density fiberboard.
Background technology
Low density fiberboard is in terms of physical and mechanical property, the index request of close even up to medium density fibre board (MDF),
On the premise of meeting basic use value, the fibreboard product of low-density has huge in fields such as furniture, decoration, finishing, packagings
Application and substitute potentiality.
But easily soaked cracking, such as door that low-density plank is done are, it is necessary to make doorframe of solid wood for low-density plank, materials cost
It is high；And due to the limitation of technical conditions so that what manufacturer can not be inexpensive produces the larger low-density plank of thickness, it is impossible to meet
Pursuit of the consumer to density plate thickness.
The content of the invention
It is an object of the invention in order to overcome the disadvantages mentioned above of existing production technology, there is provided a kind of low density fiberboard
Production method and product, the technical solution adopted by the present invention is：
A kind of production method of low density fiberboard, its production stage is as follows：
A) after wood fibre is separated, screened, electrical heating is steamed, handled through defibrator grinding chamber body and fiber is made；
B) fiber of the defibrator grinding chamber body output, output to the blow line being connected with defibrator；
C) by ecological glue isocyanate glue by being glued the porch that pump is pumped into blow line, adhesive is through high pressure nozzle
It is sprayed on fiber, with the fiber of the output mix and uniform；
D) enter after the fiber is well mixed with the adhesive and be dried in drying duct；
E) after drying, the fiber after applying glue is handled is again through carrying out hot pressing on hot press；
The step a) will be 400-500kg/m through the mach fibril materials applied amount of defibrator process3；
The ecological glue isocyanate glue resin addeds of the step c) are 40-55kg/m3；
Step e) the hot pressing pressures are 2-150kg/cm2, hot pressing speed 110-140mm/s, hot pressing temperature 207-260
℃。
It is preferred that, step a) the electrical heating steam injection time is 2-5min, and spray temperature is 160-180 DEG C；
A kind of low density fiberboard, it is characterised in that using the production method of above-mentioned low density fiberboard, the production produced
Product.
Beneficial effects of the present invention are：
(1) above-mentioned technological parameter of the invention, is not all very to hot pressing pressure and hot pressing speed, the parameter of temperature requirement
Height, hot pressing pressure is 2-150kg/cm2, hot pressing speed 110-140mm/s, 207-260 DEG C of hot pressing temperature is larger in a scope
It is interval in, low density fiberboard can be produced, and use this parameter, the density plate thickness produced is larger；Fiber consumption
400-500kg/m3, the fiberboard of output is satisfactory low-density plank.According to process above, producible sheet metal thickness is
35-60mm。
(2) product high-environmental of the present invention, high waterproof, and in the case of boiling, sheet material will not be ftractureed or is layered；Can be straight
Monoblock manufacture door-plate is connect, without making doorframe of solid wood, timber resources is saved.
Embodiment
The present invention is explained below.
Embodiment 1：
By timber peeling, screening, electrical heating is steamed, and steam injection time is 2min, and boiling temperature is 160 DEG C；Through defibrator plus
The fibril materials applied amount of work is 480kg/m3, ecological glue isocyanate glue resin added 40kg/m3, hot pressing pressure 2kg/cm2,
Hot pressing speed 110mm/s, 207 DEG C of hot pressing temperature.
Case study on implementation 2：
By timber peeling, screening, electrical heating is steamed, and steam injection time is 5min, and boiling temperature is 180 DEG C；Through defibrator plus
The fibril materials applied amount of work is 500kg/m3, ecological glue isocyanate glue resin added 55kg/m3, hot pressing pressure 150kg/
cm2, hot pressing speed 140mm/s, 260 DEG C of hot pressing temperature.
Case study on implementation 3：
By timber peeling, screening, electrical heating is steamed, and steam injection time is 3min, and boiling temperature is 170 DEG C；Through defibrator plus
The fibril materials applied amount of work is 490kg/m3, ecological glue isocyanate glue resin added 42kg/m3, hot pressing pressure 100kg/
cm2, hot pressing speed 130mm/s, 225 DEG C of hot pressing temperature.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.Although in addition, being used in this specification
Some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (3)
1. a kind of production method of low density fiberboard, its production stage is as follows：
A) after wood fibre is separated, screened, electrical heating is steamed, handled through defibrator grinding chamber body and fiber is made；
B) fiber of the defibrator grinding chamber body output, output to the blow line being connected with defibrator；
C) ecological glue isocyanate glue is sprayed by being glued the porch that pump is pumped into blow line, adhesive through high pressure nozzle
On fiber, with the fiber of the output mix and uniform；
D) enter after the fiber is well mixed with the adhesive and be dried in drying duct；
E) after drying, the fiber after applying glue is handled is again through carrying out hot pressing on hot press；
The step a) will be 400-500kg/m through the mach fibril materials applied amount of defibrator process3；
The ecological glue isocyanate glue resin addeds of the step c) are 40-55kg/m3；
Step e) the hot pressing pressures are 2-150kg/cm2, hot pressing speed 110-140mm/s, 207-260 DEG C of hot pressing temperature.
2. the production method of fiberboard according to claim 1, it is characterised in that：Step a) the electrical heating steam injection times
For 2-5min, spray temperature is 160-180 DEG C.
3. a kind of low density fiberboard, it is characterised in that：The product is the fiberboard according to claim any one of 1-2
Production method, the product produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196966.0A CN107042570A (en) | 2017-03-29 | 2017-03-29 | The production method and product of a kind of low density fiberboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196966.0A CN107042570A (en) | 2017-03-29 | 2017-03-29 | The production method and product of a kind of low density fiberboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107042570A true CN107042570A (en) | 2017-08-15 |
Family
ID=59544265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196966.0A Pending CN107042570A (en) | 2017-03-29 | 2017-03-29 | The production method and product of a kind of low density fiberboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107042570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012842A (en) * | 2021-10-27 | 2022-02-08 | 北京林业大学 | Heating and punching device, hot pressing system comprising same, ultra-light hollow fiber base material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150338A (en) * | 2015-08-24 | 2015-12-16 | 广西三威林产工业有限公司 | Manufacturing method for formaldehyde-free medium and high density fiber panel |
-
2017
- 2017-03-29 CN CN201710196966.0A patent/CN107042570A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150338A (en) * | 2015-08-24 | 2015-12-16 | 广西三威林产工业有限公司 | Manufacturing method for formaldehyde-free medium and high density fiber panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012842A (en) * | 2021-10-27 | 2022-02-08 | 北京林业大学 | Heating and punching device, hot pressing system comprising same, ultra-light hollow fiber base material and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170815 |