CN104476632A - Hot pressing process of single-plate veneered bent wood - Google Patents
Hot pressing process of single-plate veneered bent wood Download PDFInfo
- Publication number
- CN104476632A CN104476632A CN201410704826.6A CN201410704826A CN104476632A CN 104476632 A CN104476632 A CN 104476632A CN 201410704826 A CN201410704826 A CN 201410704826A CN 104476632 A CN104476632 A CN 104476632A
- Authority
- CN
- China
- Prior art keywords
- hot pressing
- pressing process
- density
- veneered
- plate
- 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
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
Abstract
The invention discloses a hot pressing process of single-plate veneered bent wood. The hot pressing process comprises the following steps: planting trees at the density being less than 0.4g/cm<3> and adopting pressure being 0.6MPa-1.0MPa; planting trees at the density being more than 0.4g/cm<3> and adopting pressure being 0.6MPa-1.0MPa, and controlling the heating temperature being not lower than 75 DEG C. According to the hot pressing process, the machined single-plate veneered bent wood is subjected to hot pressing by adopting proper pressure and temperature; the operation is simple, the strength of the obtained product is high and the performance is good.
Description
Technical field
The present invention relates to Furniture manufacturing technical field, especially a kind of Veneer gluing bending-wood hot pressing.
Background technology
Along with the application of all types of material in Furniture manufacture, the environmental issue of furniture woods also highlights day by day.Environmental protection furniture requirements selects existing good serviceability to have again the material of good harmony with environment.Material and environment have good harmony and are mainly manifested in two aspects: first material has very low carrying capacity of environment value in life cycle overall process (raw material obtain, produce, process, use, discard, regeneration etc.); It two is pollutions that material has manufacturing process.Although steel, plastics can alleviate the demand of furniture to timber within short-term, they all do not have the reasonability of reproducibility in resource and energy resource consumption.And all types of wood-based plates, due to the problem of the aspects such as adhesive, edge sealing, manufacturing process, it also never can solve the pollution problem of environment.Along with people more and more pay attention to environment, the environmental issue of furniture woods also becomes more and more important.
Veneer gluing bentwood furniture is one of current furniture item comparatively popular in the world, compares bentwood furniture and have advantage in a lot, such as, three-dimensional or multidirectional press can be used to produce many curved surfaces profiled member easily with solid wood with plate fitment; Because component is formed by multilayer single plate lamination, best raw material can be used in surface, and defective raw material are placed on sandwich layer, which improves quality and the timber utilization rate of product; Due to veneer forward lamination, the MOR of component and elastic modelling quantity are also better than solid wood and the wood-based plate of equal seeds far away, therefore, it using reduced size as the load-supporting part of furniture, and can have advantage with its Hepplewhite too in comfortableness and fatigue durability.Along with the raising day by day of living standards of the people, the continuous enhancing of furnitur manufacturer's brand awareness, environment-friendly type furniture will become the main flow in market.Owing to adopting a large amount of urea-formaldehyde resin adhesives during bending-wood gummed, so free formaldehyde problem is the key factor of restriction bentwood furniture development always.
How new technology is used for Furniture manufacture, improves Furniture manufacturing technique, reduce the consumption of urea-formaldehyde resin adhesive in process of production or replace with other materials, solving free formaldehyde problem, produce environment-friendly type Veneer gluing bentwood furniture.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of Veneer gluing bending-wood hot pressing, easy and simple to handle, effective.
In order to realize foregoing invention object, the invention provides following technical scheme: a kind of Veneer gluing bending-wood hot pressing, comprises following process: be less than 0.4g/cm in density
3seeds, adopt pressure 0.6 ~ 1.OMPa; Density is greater than 0.4g/cm
3seeds, adopt pressure 0.6 ~ 1.OMPa, heating-up temperature is not less than 75 DEG C.
Further, this heating comprises high-frequency heating stage and insulation cooling stage.
Compared with prior art, the present invention has the following advantages: adopt the Veneer gluing bending-wood of suitable pressure and temperature to processing to carry out hot pressing, simple to operate, the product strength obtained is high, and performance is good.
Detailed description of the invention
Describe the present invention below in conjunction with embodiment, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
Hot pressing is the key link during bending-wood is produced, and relates to pressure, temperature and time:
1, hot pressing pressure
First will determine hot pressing pressure before hot pressing, hot pressing pressure depends on viscosity, the thickness deviation of the density of adherend, surface flatness, mixed glue solution and mats formation the time.(density is less than 0.4g/cm to low-density seeds
3) pressure at about 0.6 ~ 1.OMPa, and the high seeds of density (density is greater than 0.4g/cm
3) pressure is at about 1.0 ~ 1.6MPa, but too high pressure can make production difficulty strengthen (during hot pressing exhaust problem), also can reduce the utilization rate of timber simultaneously, cause production cost to improve; On the contrary, if insufficient pressure, then when being difficult to ensure gummed, the pressure of abundance makes bonding plane close contact, easily causes product to come unglued.The assortment that particularly density is high should adopt higher pressure; Also suitably pressure should be improved when the viscosity of glue is larger.
2, hot pressing temperature and hot pressing time
Hot pressing temperature determines according to the hot compression parameters of glue, on the contrary, also can adapt to the running parameter of hot press according to the formula of the parameter adjustment adhesive of hot press.
(1) heating platen hot pressing
The hot pressing temperature of heating platen hot pressing is not less than 75 DEG C, otherwise can reduce production efficiency.The uniformity of detected temperatures is needed after each change hot compression parameters or adjustment press, should the temperature of testing product surface diverse location immediately after ejecting plate.Too low or the uneven meeting of temperature causes glue-line to come unglued.Depend on the factor such as the curing rate of temperature, glue, the density of adherend pressing time.During hot-press gluing, pressing time is relevant with the temperature on tree lace, set apart and allow heat pass over from heating platen, the thermal break-through time according to the density of timber and humidity, with tree lace farthest distance and change.
(2) many factors are depended in high-frequency heating hot pressing high-frequency heating, the electric property of such as press frequency, voltage, mat moisture content, glue-spread, environment temperature and adherend and size.The production medium-high frequency hot pressing of bending-wood is generally divided into two stages, and the first stage is the high-frequency heating stage, and second stage is pressurize cooling stage.The high-frequency heating general time is shorter, and pressurize then needs the longer time and depends on area and the environment temperature of clung body.
The determination of high-frequency heating time is generally suppress some equivalent specifications test specimens according to after press parameter determination adhesive formulation, the performance of test specimen is detected according to the different high-frequency heating time, the high-frequency heating time of what the qualified test specimen medium-high frequency heat time was shorter be this specification test specimen when other parameter constant.Area and the glue-spread of high-frequency heating time and test specimen are directly proportional, and when high frequency power, voltage, mat moisture content, environment temperature and seeds change, the high-frequency heating time also should change.
Adopt hot-press method of the present invention, the product bonding strength >=0.70Mpa obtained can be made.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a Veneer gluing bending-wood hot pressing, comprises following process: be less than 0.4g/cm in density
3seeds, adopt pressure 0.6 ~ 1.OMPa; Density is greater than 0.4g/cm
3seeds, adopt pressure 0.6 ~ 1.OMPa, heating-up temperature is not less than 75 DEG C.
2. Veneer gluing bending-wood hot pressing as claimed in claim 1, is characterized in that: this heating comprises high-frequency heating stage and insulation cooling stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410704826.6A CN104476632A (en) | 2014-11-28 | 2014-11-28 | Hot pressing process of single-plate veneered bent wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410704826.6A CN104476632A (en) | 2014-11-28 | 2014-11-28 | Hot pressing process of single-plate veneered bent wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104476632A true CN104476632A (en) | 2015-04-01 |
Family
ID=52751303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410704826.6A Pending CN104476632A (en) | 2014-11-28 | 2014-11-28 | Hot pressing process of single-plate veneered bent wood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104476632A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10224793C1 (en) * | 2002-06-04 | 2003-07-31 | Franz Binder Ges Mbh Holzindus | Laminated wood product manufacturing plant has laminated product fed to clock-controlled press or continuous press operated in parallel |
| US20090291286A1 (en) * | 2008-03-04 | 2009-11-26 | Ziming Shen | Laminate manufacturing system, method, and article of manufacture |
| CN101791811A (en) * | 2010-03-30 | 2010-08-04 | 嘉汉林业(广州)有限公司 | Combined lumber and fabrication technique thereof |
| CN201872210U (en) * | 2010-03-30 | 2011-06-22 | 嘉汉林业(广州)有限公司 | Combined batten |
| CN102211339A (en) * | 2011-05-31 | 2011-10-12 | 上海荷雨木业有限公司 | Manufacturing method of coreboard |
| CN102248560A (en) * | 2011-07-19 | 2011-11-23 | 南京林业大学 | Method for manufacturing plant fiber exterior wall cladding |
-
2014
- 2014-11-28 CN CN201410704826.6A patent/CN104476632A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10224793C1 (en) * | 2002-06-04 | 2003-07-31 | Franz Binder Ges Mbh Holzindus | Laminated wood product manufacturing plant has laminated product fed to clock-controlled press or continuous press operated in parallel |
| US20090291286A1 (en) * | 2008-03-04 | 2009-11-26 | Ziming Shen | Laminate manufacturing system, method, and article of manufacture |
| CN101791811A (en) * | 2010-03-30 | 2010-08-04 | 嘉汉林业(广州)有限公司 | Combined lumber and fabrication technique thereof |
| CN201872210U (en) * | 2010-03-30 | 2011-06-22 | 嘉汉林业(广州)有限公司 | Combined batten |
| CN102211339A (en) * | 2011-05-31 | 2011-10-12 | 上海荷雨木业有限公司 | Manufacturing method of coreboard |
| CN102248560A (en) * | 2011-07-19 | 2011-11-23 | 南京林业大学 | Method for manufacturing plant fiber exterior wall cladding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101941224B (en) | Method for improving bonding performance of woody single plate by utilizing normal pressure cold plasma | |
| CN101704256B (en) | Method for manufacturing cold plasma modified single board quasi-artificial board | |
| CN101139864A (en) | Wood multi-layer floor composed of cut-plate and veneer and method for making same | |
| CN102049801A (en) | Resin impregnated wood skin veneer and manufacturing process thereof | |
| CN101870127A (en) | Manufacturing method of thermoplastic resin wood composite board and special equipment | |
| CN203380976U (en) | Plywood for bamboo-wood composite container baseplate | |
| CN104608211B (en) | A kind of glued board of sandwich layer super thick and preparation technology thereof | |
| CN106182219A (en) | A kind of aqueous formaldehyde decorative cover base board and production technology thereof | |
| CN103640066B (en) | A kind of composite artificial board for container soleplate and manufacture method thereof | |
| CN104002358A (en) | Manufacturing method for producing solid wood floors by use of waste leftover materials | |
| CN105171883A (en) | Manufacturing method for bamboo and wood oriented strand board for bottom plates of containers | |
| CN101811314A (en) | Aluminum wood composite veneer and processing method thereof | |
| CN105415477A (en) | Environment-friendly plate for custom furniture production and manufacturing method of environment-friendly plate | |
| CN105965616B (en) | The manufacturing method of veneer base composite board | |
| CN105295740A (en) | Aldehyde-free liquid glue and artificial board processing method | |
| US8470124B1 (en) | Cold pressing process for polyamide epichlorohydrin (PAE) based wood adhesive | |
| CN101367218A (en) | Method for manufacturing composite board for bottom board of container | |
| CN104476632A (en) | Hot pressing process of single-plate veneered bent wood | |
| CN103692502B (en) | As the manufacture method of the non-woven fabrics enhancement mode laminated veneer lumber of decoration bar section base material | |
| CN102582198A (en) | Method for producing multi-layer board | |
| CN104842410A (en) | Manufacturing method for utilizing larch bark to manufacture non-glue particle boards | |
| CN104526793A (en) | Production process of veneer bending wooden furniture | |
| CN104647561B (en) | High area density fibre board and manufacture method thereof | |
| CN100419190C (en) | Solid wood composite floor board having vent hole structure on base material and its manufacturing method | |
| CN103737693B (en) | Melamine pupil production. art |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |
|
| RJ01 | Rejection of invention patent application after publication |