CN101973057A - Method for manufacturing wooden bridge decks - Google Patents
Method for manufacturing wooden bridge decks Download PDFInfo
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- CN101973057A CN101973057A CN 201010509610 CN201010509610A CN101973057A CN 101973057 A CN101973057 A CN 101973057A CN 201010509610 CN201010509610 CN 201010509610 CN 201010509610 A CN201010509610 A CN 201010509610A CN 101973057 A CN101973057 A CN 101973057A
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- veneer
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- fire retardant
- brushing
- dipping
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Abstract
The invention discloses a method for manufacturing wooden bridge decks. The method comprises the following steps of: (1) dipping wood veneers for 16 to 24 hours by utilizing a phenolic resin adhesive under the conditions that the temperature is at 10 to 35 DEG C and the bath ratio of V veneer to V adhesive is 1:0.2 to 1:1.5, and then drying the wood veneers at the temperature of 60 to 70 DEG C until the moisture content is 10 to 16%; (2) painting a fire retardant on one side of the dipped veneers used for a core board, and painting the adhesive on the other side; painting a preservative on the surface of the dipped veneers used for a surface board, and painting the adhesive on the back; and assembling according to a vertical crossover mode and combining the side painted with the preservative with the side painted with the adhesive of the other veneer, wherein the total thickness of the veneer after assembly is 25 to 40 cm; and (3) carrying out hot press molding by adopting a hot-press after assembly, and sawing off 5 to 30cm at four sides so as to obtain the wooden bridge deck. The wooden bridge deck has the advantages of high intensity, high rigidity and durability and good dimensional stability.
Description
Technical field
The present invention relates to a kind of manufacture method of floorings, particularly relate to a kind of manufacture method of wooden floorings.
Background technology
It is main construction material that the modern wood structure bridge is exactly with the engineered wood construction material, and that adopts modern wood structure design and Building technology construction melts aesthetic feeling, functional and high performance-price ratio in the bridge of one.Now, after incorporating new and high technology processing processing means, the timber structure bridge shows beautiful elegance once again, it not only has advantages such as nature, attractive in appearance, environmental protection, easy care, the utilization of construction material recyclable regenerative, and just the direction towards high capacity, large span marches, and may compare favourably with modern concrete, steel structure bridge.Even at some particular application (as extremely frigid zones), compare with other bridge, the timber structure bridge has shown better adaptability.
For making full use of timber resources, enlarge the woodwork application, realize the high value added utilization of timber, improve rural transportation condition, promote the grass roots economic development, 1988 and 1991, US Congress passed through two bills of timber structure bridge development in succession, had begun the system research of timber structure bridge construction technology and had widelyd popularize application from national aspect.Till 1996, the new wood structural bridge that only adopts stress lamination wood to build just surpasses 400, and the timber structure bridge single hole span that has surpasses 80m.According to incompletely statistics, the whole America span surpasses in the bridge of 20 feet (promptly 6 meters) at present, and it is the timber structure bridge that the bridge about 12% is arranged, and its sum is above 71200, only the timber structure bridge of Forest Service's administration just reaches 7500, and also have large quantities of timber structure bridges every year still in construction.In addition, in railway, the timber structure bridge that also has mileage to surpass 1500 miles (i.e. 2400 kms) is using.In the highway bridge of the middle or small span of the U.S., particularly in the country road of low freight volume, the timber structure bridge is widely adopted.In construction and use, show advantages such as long service life (design service life is all more than 50 years), security reliability height, the rapid and easy maintenance of construction just because of the modern wood structure bridge, caused the extensive concern of states such as numerous international organizations and Canada, Britain, Japan, Australia.
The research and the practice of state such as the U.S., Canada show, promote the use of the timber structure bridge and can not only greatly improve the grass roots transportation condition, promote the rural economy development, more can be by the research and the application of timber structure bridge, directly promote the exploitation of engineered wood construction material, make timber be widely used in architectural engineering circle, when expanding the timber application, greatly improve the Wood products added value as a kind of structural material.And in China, the development and application of modern wood structure bridge and closely-related with it engineered wood construction material all also is in space state.In the end of the year 2004, domestic first modern wood structure overpass (33 meters of single hole spans) builds up at Shanghai She Shan golf course.It's a pity that this timber structure bridge is built needed engineered wood construction material also from the U.S. by U.S. engineer design, spends very huge.Therefore, how timber is applied to architectural engineering circle, expands the timber application, improve the woodwork added value and become the great scientific and technical difficult problem that China timber scientific worker needs to be resolved hurrily.Therefore invent and a kind ofly utilize the living eucalyptus timber of homemade speed to prepare floorings to be necessary.
Summary of the invention
Technical problem to be solved by this invention provides the manufacture method of a kind of high strength and high rigidity, durability, wooden floorings that dimensional stability is good.
In order to solve the problems of the technologies described above, the manufacture method of wooden floorings provided by the invention is made of the following step:
(1), at 10～35 ℃, bath raio V
Veneer: V
AdhesiveUnder=1: 0.2～1.5 the condition, utilize phenolic resin adhesive impreg veneer 16～24 hours, dry veneer down to moisture content 10～16% at 60～70 ℃ then, obtain flooding veneer; Wherein the solids content of phenolic resin adhesive is 40～41%; Veneer thickness is 0.6～1.2mm, and seeds are the thin eucalyptus of tail alpine ash, Eucalyptus urophylla-grandis, Eucalyptus urophylla or tail;
(2), be used in the dipping veneer of central layer, one side brushing fire retardant, another side brushing adhesive; Be used in the dipping veneer of dash board, external coating anticorrisive agent, back side brushing adhesive; Carry out assembly according to the square crossing mode, the one side of brushing adhesive is combined on the one side that requires brushing fire retardant on the dipping veneer and another dipping veneer, and the veneer gross thickness is 25～40cm behind the assembly; Wherein anticorrisive agent is to mix liquid by copper sulphate saturated solution, ammonium molybdate saturated solution at 1: 1 according to volume ratio, and consumption is 25～35ml/1600cm
2Fire retardant is to be to mix pulverulent mixture at 1: 1: 1 by Firebrake ZB, magnesia, antimony oxide according to mass ratio, and the fire retardant particle diameter is 40～60 orders, and consumption is 0.8～1.2g/1600cm
2Adhesive is that solids content is 40～41% phenolic resin adhesive, and consumption is 180～200g/m
3
(3), behind the assembly, it is hot-forming to adopt hot press to carry out, hot pressing temperature is 140～150 ℃, the time is 1.4～1.6min/mm, pressure is 3.0～5.0MPa; After the hot pressing, four limits amputate 5-30cm, promptly obtain wooden floorings.
Adopt the manufacture method of the wooden floorings of technique scheme, the wooden floorings of producing have high strength and high rigidity, durability, characteristic that dimensional stability is good.
The specific embodiment
Can further be expressly understood the present invention by specific embodiments of the invention given below, but following embodiment is not a limitation of the invention.
Embodiment 1:
Its manufacture method is made of the following step:
(1), at 10 ℃, bath raio V
Veneer: V
AdhesiveUnder=1: 0.2 the condition, utilize phenolic resin adhesive impreg veneer 24 hours, dry veneer down to moisture content 16% at 60 ℃ then, obtain flooding veneer; Wherein the solids content of phenolic resin adhesive is 41%; Veneer thickness is 0.6mm, and seeds are the tail alpine ash;
(2), be used in the dipping veneer of central layer, one side brushing fire retardant, another side brushing adhesive; Be used in the dipping veneer of dash board, external coating anticorrisive agent, back side brushing adhesive; Carry out assembly according to the square crossing mode, the one side of brushing adhesive is combined on the one side that requires brushing fire retardant on the dipping veneer and another dipping veneer, and the veneer gross thickness is 25cm behind the assembly; Wherein anticorrisive agent is to mix liquid by copper sulphate saturated solution, ammonium molybdate saturated solution at 1: 1 according to volume ratio, and consumption is 25ml/1600cm
2Fire retardant is to be to mix pulverulent mixture at 1: 1: 1 by Firebrake ZB, magnesia, antimony oxide according to mass ratio, and the fire retardant particle diameter is 40 orders, and consumption is 0.8g/1600cm
2Adhesive is that solids content is 40% phenolic resin adhesive, and consumption is 180g/m
3
(3), behind the assembly, it is hot-forming to adopt hot press to carry out, hot pressing temperature is 145 ℃, the time is 1.5min/mm, pressure is 3.0MPa; After the hot pressing, four limits amputate 5cm, promptly obtain wooden floorings.
Embodiment 2:
Its manufacture method is made of the following step:
(1), at 22 ℃, bath raio V
Veneer: V
AdhesiveUnder=1: 1.0 the condition, utilize phenolic resin adhesive impreg veneer 20 hours, dry veneer down to moisture content 12% at 65 ℃ then, obtain flooding veneer; Wherein the solids content of phenolic resin adhesive is 40%; Veneer thickness is 1.0mm, and seeds are Eucalyptus urophylla-grandis;
(2), be used in the dipping veneer of central layer, one side brushing fire retardant, another side brushing adhesive; Be used in the dipping veneer of dash board, external coating anticorrisive agent, back side brushing adhesive; Carry out assembly according to the square crossing mode, the one side of brushing adhesive is combined on the one side that requires brushing fire retardant on the dipping veneer and another dipping veneer, and the veneer gross thickness is 30cm behind the assembly; Wherein anticorrisive agent is to mix liquid by copper sulphate saturated solution, ammonium molybdate saturated solution at 1: 1 according to volume ratio, and consumption is 30ml/1600cm
2Fire retardant is to be to mix pulverulent mixture at 1: 1: 1 by Firebrake ZB, magnesia, antimony oxide according to mass ratio, and the fire retardant particle diameter is 50 orders, and consumption is 1.0g/1600cm
2Adhesive is that solids content is 40% phenolic resin adhesive, and consumption is 190g/m
3
(3), behind the assembly, it is hot-forming to adopt hot press to carry out, hot pressing temperature is 140 ℃, the time is 1.4min/mm, pressure is 4.0MPa; After the hot pressing, four limits amputate 20cm, promptly obtain wooden floorings.
Embodiment 3:
Its manufacture method is made of the following step:
(1), at 35 ℃, bath raio V
Veneer: V
AdhesiveUnder=1: 1.5 the condition, utilize phenolic resin adhesive impreg veneer 16 hours, dry veneer down to moisture content 10% at 70 ℃ then, obtain flooding veneer; Wherein the solids content of phenolic resin adhesive is 40%; Veneer thickness is 1.2mm, and seeds are Eucalyptus urophylla;
(2), be used in the dipping veneer of central layer, one side brushing fire retardant, another side brushing adhesive; Be used in the dipping veneer of dash board, external coating anticorrisive agent, back side brushing adhesive; Carry out assembly according to the square crossing mode, the one side of brushing adhesive is combined on the one side that requires brushing fire retardant on the dipping veneer and another dipping veneer, and the veneer gross thickness is 40cm behind the assembly; Wherein anticorrisive agent is to mix liquid by copper sulphate saturated solution, ammonium molybdate saturated solution at 1: 1 according to volume ratio, and consumption is 35ml/1600cm
2Fire retardant is to be to mix pulverulent mixture at 1: 1: 1 by Firebrake ZB, magnesia, antimony oxide according to mass ratio, and the fire retardant particle diameter is 60 orders, and consumption is 1.2g/1600cm
2Adhesive is that solids content is 41% phenolic resin adhesive, and consumption is 200g/m
3
(3), behind the assembly, it is hot-forming to adopt hot press to carry out, hot pressing temperature is 150 ℃, the time is 1.6min/mm, pressure is 5.0MPa; After the hot pressing, four limits amputate 30cm, promptly obtain wooden floorings.
Embodiment 4:
Its manufacture method is made of the following step:
(1), at 30 ℃, bath raio V
Veneer: V
AdhesiveUnder=1: 0.8 the condition, utilize phenolic resin adhesive impreg veneer 18 hours, dry veneer down to moisture content 14% at 68 ℃ then, obtain flooding veneer; Wherein the solids content of phenolic resin adhesive is 40%; Veneer thickness is 0.8mm, and seeds are the thin eucalyptus of tail;
(2), be used in the dipping veneer of central layer, one side brushing fire retardant, another side brushing adhesive; Be used in the dipping veneer of dash board, external coating anticorrisive agent, back side brushing adhesive; Carry out assembly according to the square crossing mode, the one side of brushing adhesive is combined on the one side that requires brushing fire retardant on the dipping veneer and another dipping veneer, and the veneer gross thickness is 32cm behind the assembly; Wherein anticorrisive agent is to mix liquid by copper sulphate saturated solution, ammonium molybdate saturated solution at 1: 1 according to volume ratio, and consumption is 28ml/1600cm
2Fire retardant is to be to mix pulverulent mixture at 1: 1: 1 by Firebrake ZB, magnesia, antimony oxide according to mass ratio, and the fire retardant particle diameter is 50 orders, and consumption is 0.9g/1600cm
2Adhesive is that solids content is 40% phenolic resin adhesive, and consumption is 185g/m
3
(3), behind the assembly, it is hot-forming to adopt hot press to carry out, hot pressing temperature is 148 ℃, the time is 1.0min/mm, pressure is 3.5MPa; After the hot pressing, four limits amputate 10cm, promptly obtain wooden floorings.
Claims (1)
1. the manufacture method of wooden floorings is characterized in that: be made of the following step:
(1), at 10～35 ℃, bath raio V
Veneer: V
AdhesiveUnder=1: 0.2～1.5 the condition, utilize phenolic resin adhesive impreg veneer 16～24 hours, dry veneer down to moisture content 10～16% at 60～70 ℃ then, obtain flooding veneer; Wherein the solids content of phenolic resin adhesive is 40～41%; Veneer thickness is 0.6～1.2mm, and seeds are the thin eucalyptus of tail alpine ash, Eucalyptus urophylla-grandis, Eucalyptus urophylla or tail;
(2), be used in the dipping veneer of central layer, one side brushing fire retardant, another side brushing adhesive; Be used in the dipping veneer of dash board, external coating anticorrisive agent, back side brushing adhesive; Carry out assembly according to the square crossing mode, the one side of brushing adhesive is combined on the one side that requires brushing fire retardant on the dipping veneer and another dipping veneer, and the veneer gross thickness is 25～40cm behind the assembly; Wherein anticorrisive agent is to mix liquid by copper sulphate saturated solution, ammonium molybdate saturated solution at 1: 1 according to volume ratio, and consumption is 25～35ml/1600cm
2Fire retardant is to be to mix pulverulent mixture at 1: 1: 1 by Firebrake ZB, magnesia, antimony oxide according to mass ratio, and the fire retardant particle diameter is 40～60 orders, and consumption is 0.8～1.2g/1600cm
2Adhesive is that solids content is 40～41% phenolic resin adhesive, and consumption is 180～200g/m
3
(3), behind the assembly, it is hot-forming to adopt hot press to carry out, hot pressing temperature is 140～150 ℃, the time is 1.4～1.6min/mm, pressure is 3.0～5.0MPa; After the hot pressing, four limits amputate 5-30cm, promptly obtain wooden floorings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105096106A CN101973057B (en) | 2010-10-15 | 2010-10-15 | Method for manufacturing wooden bridge decks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105096106A CN101973057B (en) | 2010-10-15 | 2010-10-15 | Method for manufacturing wooden bridge decks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973057A true CN101973057A (en) | 2011-02-16 |
| CN101973057B CN101973057B (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105096106A Expired - Fee Related CN101973057B (en) | 2010-10-15 | 2010-10-15 | Method for manufacturing wooden bridge decks |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302711A (en) * | 2013-05-31 | 2013-09-18 | 中南林业科技大学 | Method for manufacturing heavy bridge panel |
| CN104526792A (en) * | 2015-01-04 | 2015-04-22 | 南京工业大学 | Functional bidirectional reinforced node plate for connecting wood structural members and preparation method and application thereof |
| CN106827109A (en) * | 2016-12-28 | 2017-06-13 | 中国林业科学研究院木材工业研究所 | A kind of glued board and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272694A (en) * | 2005-03-29 | 2006-10-12 | Fukushima Prefecture | Method for treating surface of wood material |
| JP2006321095A (en) * | 2005-05-18 | 2006-11-30 | Sekisui Chem Co Ltd | Method for producing surface decoration material |
| CN101021090A (en) * | 2007-02-02 | 2007-08-22 | 中国林业科学研究院木材工业研究所 | Floor slab for wooden structural building and producing method thereof |
| CN101412230A (en) * | 2008-11-10 | 2009-04-22 | 德华兔宝宝装饰新材股份有限公司 | Flame-retardant decorative veneer |
| CN101462285A (en) * | 2009-01-23 | 2009-06-24 | 浙江林学院 | Method for producing wear-resistant flame-retardant panel from fast growing wood |
-
2010
- 2010-10-15 CN CN2010105096106A patent/CN101973057B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272694A (en) * | 2005-03-29 | 2006-10-12 | Fukushima Prefecture | Method for treating surface of wood material |
| JP2006321095A (en) * | 2005-05-18 | 2006-11-30 | Sekisui Chem Co Ltd | Method for producing surface decoration material |
| CN101021090A (en) * | 2007-02-02 | 2007-08-22 | 中国林业科学研究院木材工业研究所 | Floor slab for wooden structural building and producing method thereof |
| CN101412230A (en) * | 2008-11-10 | 2009-04-22 | 德华兔宝宝装饰新材股份有限公司 | Flame-retardant decorative veneer |
| CN101462285A (en) * | 2009-01-23 | 2009-06-24 | 浙江林学院 | Method for producing wear-resistant flame-retardant panel from fast growing wood |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302711A (en) * | 2013-05-31 | 2013-09-18 | 中南林业科技大学 | Method for manufacturing heavy bridge panel |
| CN103302711B (en) * | 2013-05-31 | 2015-06-03 | 中南林业科技大学 | Method for manufacturing heavy bridge panel |
| CN104526792A (en) * | 2015-01-04 | 2015-04-22 | 南京工业大学 | Functional bidirectional reinforced node plate for connecting wood structural members and preparation method and application thereof |
| CN106827109A (en) * | 2016-12-28 | 2017-06-13 | 中国林业科学研究院木材工业研究所 | A kind of glued board and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101973057B (en) | 2012-06-20 |
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Granted publication date: 20120620 Termination date: 20131015 |