CN1511683A - High efficiency thermal press producing method for square artificial timber of veneers - Google Patents
High efficiency thermal press producing method for square artificial timber of veneers Download PDFInfo
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- CN1511683A CN1511683A CNA02160794XA CN02160794A CN1511683A CN 1511683 A CN1511683 A CN 1511683A CN A02160794X A CNA02160794X A CN A02160794XA CN 02160794 A CN02160794 A CN 02160794A CN 1511683 A CN1511683 A CN 1511683A
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Abstract
The efficient hot pressing process of producing square artificial timber of veneers includes hot pressing to make veneer combination with at least two layers of veneers with adhesive in between in a contact heat conducting hot press; and hot pressing two or more veneer combinations with adhesive in between for the second time to make square artificial timber of veneers. The present invention makes it possible to make thick square artificial timber of veneers, and the hot press has steam, hot water or hot oil as heating medium.
Description
Technical field: the efficient heat pressing manufacturing method that the present invention relates to a kind of wood single-plate class wood-based plate and square bar.
Background technology: single board quasi-artificial board square bar heat pressing process is to feed heat-carrying medium such as steam, hot water or deep fat, make the heating platen heating of hot press, and heat passed to compacted single board quasi-artificial board square bar blank between two heating platens, pressure and produce single board quasi-artificial board square bar finished product in addition in heating.When single board quasi-artificial board square bar thickness is big, for example its sotck thinkness is when 20mm is above, heating platen heat is transmitted and is obviously shown slowly, can't reach the desired temperature index of technology with center and vicinity, the center temperature that causes single board quasi-artificial board square bar thickness, cause gluing together bad and make hot pressing failure, make the single board quasi-artificial board square bar product rejection of hot pressing.
Summary of the invention: the present invention is the efficient heat pressing manufacturing method of a kind of single board quasi-artificial board square bar, and it has solved the problem that existing heat pressing process contact heat transfer can't be made the single board quasi-artificial board square bar of big thickness.The efficient heat pressing manufacturing method of single board quasi-artificial board square bar of the present invention is: the veneer group is made in a, hot pressing: the veneer of two-layer at least centre being executed adhesive constitutes a veneer assembly, the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, heating platen is closed up and implements hot pressing and make the veneer group; B, execute veneer or the veneer assembly or the veneer group of adhesive and implement hot pressing once more, make the single board quasi-artificial board square bar in the stack of the one or both sides of veneer group thickness direction.The present invention can also execute the veneer of adhesive or veneer assembly or veneer group in the stack of the one or both sides of the made single board quasi-artificial board square bar of said process and implement hot pressing once more, and repeat a said process at least and make the single board quasi-artificial board square bar, under the situation that the hot press size allows, can make the single board quasi-artificial board square bar of big thickness like this.Gross thickness≤the 30mm of each the veneer assembly described in the manufacture method of the present invention: the temperature of heating platen is generally 90 ℃～230 ℃; Maximum pressure during hot pressing is 0.7MPa～80MPa; The time of each hot pressing is every millimeter thickness 0.1～5 minute.The present invention utilizes steam, hot water or deep fat etc. to add the hot press of hot media, by changing the hot pressing processing method of single board quasi-artificial board square bar, produces the bigger single board quasi-artificial board square bar of thickness.Manufacture method of the present invention has following characteristics: whether its both sides stack amount is not symmetrical after 1, not limiting its veneer assembly stacking fold and stack: the number of plies that 2, does not limit veneer in each veneer assembly; 3, do not limit applying glue mode between the veneer, spray, pouring, roller, immersion fluid glue, or execute solid rubber powder, or add prefabricated glued membrane etc. and all can.Manufacture method of the present invention is compared with existing manufacture method has following advantage: can make 1, that thickness reaches the single board quasi-artificial board square bar of 0.5m and less than the single board quasi-artificial board square bar of other any thickness of 0.5m; 2, when making the single board quasi-artificial board square bar that veneer constitutes more than seven layers, because it is short that the used time of each veneer group is made in hot pressing, and be to begin repeatedly make the synthetic whole single board quasi-artificial board square bar of sinter between the veneer under the hot pressing to both sides by the center of a veneer assembly as thickness, therefore reduced unnecessary heat energy loss, and reduced hot pressing time, empirical tests can be saved heat energy more than 30%, shortens hot pressing time more than 30%; 3, owing to adopt repeatedly hot pressing, therefore reduced the pressure loss of hot press, can economize on electricity more than 10%, and reduce the total time of each hot pressing, enhanced productivity more than 20%.
The specific embodiment one: the used veneer thickness of present embodiment is 1.4mm, per 7 layers of veneer constitute a veneer assembly, applying glue on veneer, and the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, with the heating platen temperature hot pressing of the pressure of 1.2MPa and 150 ℃ 10 minutes, make the veneer group.With this veneer group is central core, is equipped with same veneer assembly and hot pressing 10 minutes more respectively in the both sides of its thickness direction, obtains single board quasi-artificial board square bar product.
The specific embodiment two: as described in the specific embodiment one, repeat after secondary is joined base and hot pressing 10 times again, obtain thickness and reach 190mm, the number of plies is the single board quasi-artificial board square bar product of dip stratum.This product jagsaw subdivision cuts makes square bar or plate product.
The specific embodiment three: as the technical process of the specific embodiment one described condition and hot pressing for the first time, with its first veneer group is central core, be equipped with the veneer assembly that 3 layers of veneer constitute again respectively in the both sides of its thickness direction, obtain the number of plies through secondary hot pressing and reach 13 layers, thickness reaches the single board quasi-artificial board square bar product of 15mm.
The specific embodiment four: the used veneer thickness of present embodiment is 4mm, per 3 layers of veneer constitute a veneer assembly, applying glue on veneer, and the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, with the heating platen temperature hot pressing of the pressure of 1.2MPa and 150 ℃ 12 minutes, make the veneer group.With this veneer group is central core, respectively puts the veneer of one deck 3mm in the both sides of its thickness direction, and applying glue, by above condition hot pressing 6 minutes, and repeats this process 3 times, obtains 96 layers of single board quasi-artificial board product.
The specific embodiment five: the used veneer thickness of present embodiment is 1.8mm, per 7 layers of veneer constitute a veneer assembly, applying glue on veneer, and the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, with the heating platen temperature hot pressing of the pressure of 1.2MPa and 150 ℃ 13 minutes, make the veneer group.Make a plurality of veneer groups by above-mentioned condition, and be the center, be equipped with 1 veneer group more respectively in the both sides of its thickness direction with 1 veneer group, and applying glue, by above-mentioned condition hot pressing 13 minutes, make 21 layers of single board quasi-artificial board.
The specific embodiment six: the used veneer thickness of present embodiment is 1.8mm, per 7 layers of veneer constitute a veneer assembly, applying glue on veneer, and the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, with the heating platen temperature hot pressing of the pressure of 1.2MPa and 150 ℃ 13 minutes, make the veneer group.The veneer assembly that constitutes at 7 layers of veneer of a side of veneer group thickness direction stack, and applying glue, hot pressing is 13 minutes then, makes 12 layers of single board quasi-artificial board square bar product.
The specific embodiment seven: the used veneer thickness of present embodiment is 1.8mm, per 7 layers of veneer constitute a veneer assembly, applying glue on veneer, and the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, with the heating platen temperature hot pressing of the pressure of 1.2MPa and 150 ℃ 13 minutes, make the veneer group.The veneer assemblies of 3 layers and the 5 layers veneer formation that superpose respectively in the both sides of veneer group thickness direction, and applying glue, hot pressing is 15 minutes then, makes 17 layers of single board quasi-artificial board square bar product.
Claims (3)
1, the efficient heat pressing manufacturing method of single board quasi-artificial board square bar, it is characterized in that a, hot pressing manufacturing veneer group: the veneer of two-layer at least centre being executed adhesive constitutes a veneer assembly, the veneer assembly is placed between two heating platens of the hot press that contact conducts heat, heating platen is closed up and implements hot pressing and make the veneer group; B, execute veneer or the veneer assembly or the veneer group of adhesive and implement hot pressing once more, make the single board quasi-artificial board square bar in the stack of the one or both sides of veneer group thickness direction.
2, the efficient heat pressing manufacturing method of single board quasi-artificial board square bar according to claim 1, it is characterized in that executing the veneer of adhesive or veneer assembly or veneer group in the stack of the one or both sides of the made single board quasi-artificial board square bar of said process implements hot pressing once more, and repeat a said process at least and make the single board quasi-artificial board square bar.
3, the efficient heat pressing manufacturing method of single board quasi-artificial board square bar according to claim 1 and 2 is characterized in that the gross thickness≤30mm of described each veneer assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA02160794XA CN1511683A (en) | 2002-12-31 | 2002-12-31 | High efficiency thermal press producing method for square artificial timber of veneers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA02160794XA CN1511683A (en) | 2002-12-31 | 2002-12-31 | High efficiency thermal press producing method for square artificial timber of veneers |
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| CN1511683A true CN1511683A (en) | 2004-07-14 |
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| CNA02160794XA Pending CN1511683A (en) | 2002-12-31 | 2002-12-31 | High efficiency thermal press producing method for square artificial timber of veneers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189569A (en) * | 2011-04-20 | 2011-09-21 | 河北北方绿野居住环境发展有限公司 | Processing method of solid wood door plate |
| CN102320067A (en) * | 2011-08-25 | 2012-01-18 | 国家林业局竹子研究开发中心 | Method for producing dyeing laminated veneer lumber of poplar via cold pressing method |
| CN101700666B (en) * | 2009-11-04 | 2012-02-01 | 嘉善新华昌木业有限公司 | Plywood flow-line assembling method and apparatus for bottom board of container |
| CN102615681A (en) * | 2012-03-14 | 2012-08-01 | 辽宁省林业科学研究院 | Manufacturing method for laminated veneer lumber of quick growing tree species |
| CN104772799A (en) * | 2014-01-13 | 2015-07-15 | 中集木业发展有限公司 | Container, flattened bamboo composite floor for container and processing method thereof |
| CN105583915A (en) * | 2015-08-19 | 2016-05-18 | 福建汇洋林业投资股份有限公司永安分公司 | Manufacturing method for cedar board |
| CN112025874A (en) * | 2020-08-04 | 2020-12-04 | 南京林业大学 | Method for rapidly curing artificial board core layer adhesive by microwave |
-
2002
- 2002-12-31 CN CNA02160794XA patent/CN1511683A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700666B (en) * | 2009-11-04 | 2012-02-01 | 嘉善新华昌木业有限公司 | Plywood flow-line assembling method and apparatus for bottom board of container |
| CN102189569A (en) * | 2011-04-20 | 2011-09-21 | 河北北方绿野居住环境发展有限公司 | Processing method of solid wood door plate |
| CN102320067A (en) * | 2011-08-25 | 2012-01-18 | 国家林业局竹子研究开发中心 | Method for producing dyeing laminated veneer lumber of poplar via cold pressing method |
| CN102615681A (en) * | 2012-03-14 | 2012-08-01 | 辽宁省林业科学研究院 | Manufacturing method for laminated veneer lumber of quick growing tree species |
| CN104772799A (en) * | 2014-01-13 | 2015-07-15 | 中集木业发展有限公司 | Container, flattened bamboo composite floor for container and processing method thereof |
| CN105583915A (en) * | 2015-08-19 | 2016-05-18 | 福建汇洋林业投资股份有限公司永安分公司 | Manufacturing method for cedar board |
| CN112025874A (en) * | 2020-08-04 | 2020-12-04 | 南京林业大学 | Method for rapidly curing artificial board core layer adhesive by microwave |
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