CN102328442A - Preparation method of glass fiber reinforced plastic supporting balk for building construction - Google Patents
Preparation method of glass fiber reinforced plastic supporting balk for building construction Download PDFInfo
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- CN102328442A CN102328442A CN201110208899A CN201110208899A CN102328442A CN 102328442 A CN102328442 A CN 102328442A CN 201110208899 A CN201110208899 A CN 201110208899A CN 201110208899 A CN201110208899 A CN 201110208899A CN 102328442 A CN102328442 A CN 102328442A
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Abstract
The invention discloses a preparation method of a glass fiber reinforced plastic supporting balk for building construction, which comprises the following steps of: soaking reinforcing materials into a resin mixture, wherein the reinforcing materials are glass fiber yarn for enhancing the longitudinal strength and glass fiber cloth and/or glass fiber felt for enhancing the transverse strength; putting the soaked reinforcing materials into a pultrusion mould to form a glass fiber reinforced plastic supporting balk rough blank; and putting the glass fiber reinforced plastic supporting balk rough blank into a curing mould to form the glass fiber reinforced plastic supporting balk. In the invention, the glass fiber reinforced plastic materials are adopted to form the glass fiber reinforced plastic supporting balk, and through a formed supporting balk structure, the strength of the supporting balk is enhanced, the problem that the elastic modulus of the glass fiber reinforced plastic is low is solved, the defects of glass fiber reinforced plastic are overcome, and the glass fiber reinforced plastic supporting balk can be used in combination with a construction tool more reliably.
Description
Technical field
The present invention relates to a kind of preparation method of construction tool for building, relate in particular to a tree, used in making timber for boats is supported in a kind of construction with fiberglass preparation method.
Background technology
Backing material for building generally comprises wooden a tree, used in making timber for boats and wood composite a tree, used in making timber for boats in the prior art.In Chinese patent number " 97112278.4 ", disclose a kind of method for manufacturing of sham wood a tree, used in making timber for boats, its applying date is on July 21st, 1997, and open day is on January 27th, 1999, is that veneer with general seeds carries out with H successively
2O
2Be bleaching, dyeing in the acid dyes solution of uniform temperature, steam or dielectric drying, sorting, assembly in the solution of leading, select glue kind gluing for use, cold pressing or operations such as hot pressing, slicing.But the wooden a tree, used in making timber for boats of this kind is as construction instrument usefulness, and only is the decorative panel as construction material.In the prior art, construction is lower with wooden a tree, used in making timber for boats intensity and recycling rate of waterused, but in a large amount of uses, the existing building construction is one of timber consumption maximum with the mode of traditional wooden a tree, used in making timber for boats.
Existing wood composite a tree, used in making timber for boats all is the wood composite a tree, used in making timber for boats that adopts steel and wood composite preparation.For example, disclose a kind of shaping reinforced concrete member at Chinese patent number " 200720080728.5 " and supported that to use wood composite a tree, used in making timber for boats, its applying date be on August 21st, 2007; Open day is on June 11st, 2008; Steel frame adopts the C structural steel frame, and wooden a tree, used in making timber for boats is entrenched in the C structural steel frame, and its steel face is provided with connecting hole; With connector C shaped steel frame and wooden a tree, used in making timber for boats being fixed together forms an integral body, on C structural steel frame steel face, is provided with the construction circular hole that distance does not wait.Chinese patent number " 200920243850.9 " discloses a kind of wood composite a tree, used in making timber for boats supporting structure for another example; Its applying date is on December 9th, 2009; Open day is on October 27th, 2010; Comprise by " ∪ " shape channel-section steel and the supporting structure body that filling wood forms, fill wood and be set to be " protruding " shape that two channel-section steel limits of " ∪ " shape channel-section steel bend inwards to extend with the nose of filling wood and cooperate formation one plane.Existing wood composite a tree, used in making timber for boats preparation method mainly is with the steel plate bending and cuts into required form, processes the wood composite a tree, used in making timber for boats with wood composite again.
But in practical application, find; Existing steel wood wood composite a tree, used in making timber for boats mainly also exists following not enough: one, the wood composite a tree, used in making timber for boats of prior art all is to adopt the external reinforcing cover of steel as wooden a tree, used in making timber for boats, and excess enthalpy is heavy, after especially in work progress, reusing; Cement mortar can pour in the slit between reinforcing sleeve and the wooden a tree, used in making timber for boats in a large number; Make the wood composite a tree, used in making timber for boats heavier, and as the wooden a tree, used in making timber for boats recycling of supporting very difficulty, the not only big consumption that increases timber; Be unfavorable for environmental protection, and increased construction cost.Two, in work progress, the wood composite a tree, used in making timber for boats need be connected with the steel pipe bracing frame, because the wood composite a tree, used in making timber for boats is comparatively heavy, makes the easy landing that is connected between wood composite a tree, used in making timber for boats and the steel pipe bracing frame, and bigger potential safety hazard is arranged.
And comparatively wide model, for example Aeronautics and Astronautics, military affairs etc. of the range of application of fiberglass in the prior art.And in building field, also have to relate to, for example Chinese patent number " 99102010.3 " discloses a kind of bamboo/fiberglass composite light construction material, and its applying date is on February 5th, 1999; Open day is on August 9th, 2000; Be to be primary raw material,, cover outward or twine fibre reinforced composites as the main load-carrying member of structure with the bamboo that China south abounds with; The middle filler of filling is composited; This material structure can be made into the bearing bar and the panel construction of various types and shape, only is used for used rod member of light construction structure and wallboard, and the skyscraper partition wall.Because there is following defective in fiberglass: one, elastic modelling quantity is low, the big twice of modular ratio timber of fiberglass, but littler 10 times than steel,, often feels product that therefore rigidity is not enough in using, easy deformation.Two, long-term temperature tolerance is poor, and general fiberglass can not at high temperature use for a long time, and general purpose polyester FRP just obviously descends in intensity more than 50 ℃, and is general only in use below 100 ℃; Universal epoxy FRP is more than 60 ℃, and intensity has obvious decline.Three, aging phenomenon, aging phenomenon are the common defects of plastics, and fiberglass is no exception, under effects such as ultraviolet ray, dust storm sleet, chemical mediator, mechanical stress, cause performance to descend easily.Four, interlaminar shear strength is low, and interlaminar shear strength is born by resin, so very low.Above-mentioned defective makes that glass-reinforced plastic material is not easy to connect, and it is relatively poor to connect the back reliability, has bigger potential safety hazard, thereby makes fiberglass in building field, only use as construction material.
Summary of the invention
The objective of the invention is to overcome the problems referred to above of existing wooden a tree, used in making timber for boats and the existence of wood composite a tree, used in making timber for boats; The preparation method of a kind of construction with fiberglass support a tree, used in making timber for boats is provided, adopts glass-reinforced plastic material to form fiberglass among the present invention and support a tree, used in making timber for boats, through the support a tree, used in making timber for boats structure that forms; The strength and stiffness that support a tree, used in making timber for boats have not only been improved; Also solve the low problem of fiberglass elastic modelling quantity, overcome the defective that fiberglass self exists, and fiberglass has supported a tree, used in making timber for boats and construction tool is used more reliable.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of construction is characterized in that with the preparation method of fiberglass support a tree, used in making timber for boats, comprises the steps:
A, reinforcing material get in the resin mixture and flood, and wherein reinforcing material is in order to the glass fiber yarn of increase longitudinal strength with in order to increase the glass fabric and/or the glass mat of transverse strength;
Reinforcing material behind b, the dipping gets into formed glass steel support a tree, used in making timber for boats crude green body in the pultrusion die;
C, fiberglass support a tree, used in making timber for boats crude green body and get into formed glass steel support a tree, used in making timber for boats in the curing mold.
The present invention comprises also in d step and the e step that said d step supports the interior composite members that a tree, used in making timber for boats inner chamber is complementary for timber being shaped to fiberglass; Said e step is interior composite members to be embedded fiberglass support in the inner chamber of a tree, used in making timber for boats, is shaped to fiberglass wood composite a tree, used in making timber for boats.
In the said dipping, the dip time of glass fiber yarn is 15-20s, and the dip time of glass fabric and/or glass mat is 15-20s, and the gel content of resin mixture is 40-45%.
In the said b step, in the pultrusion die of pulltrusion device, put into reinforcing material, at 600-700KN/m
2Under the pulling force, 3-5 minutes formed glass steel of pultrusion support a tree, used in making timber for boats crude green body.
In the said pultrusion, the placement of reinforcing material for putting into the glass fiber yarn of internal layer earlier, is put into outer field glass fabric and/or glass mat in proper order again.
In the said c step, fiberglass supports in the curing mold of a tree, used in making timber for boats crude green body entering heat cure molding device, and curing molding fiberglass supports a tree, used in making timber for boats.
Said curing molding is made up of two sections curing, under 50 ℃ of-70 ℃ of temperature, solidifies 5-7 minutes, under 130 ℃ of-150 ℃ of temperature, solidifies 6-7 minutes.
In the said curing molding, the hauling speed of curing mold is 0.4-1.2m/min, and the length of curing mold is 0.5-1.5m.
In the said c step, fiberglass supports and is shaped to fiberglass support a tree, used in making timber for boats hollow and that the cross section is rectangular in a tree, used in making timber for boats crude green body entering curing mold.
In the said e step, fiberglass supports a tree, used in making timber for boats in the time of 50 ℃-70 ℃, interior composite members is embedded fiberglass support in a tree, used in making timber for boats crude green body inner chamber.
Employing the invention has the advantages that:
One, among the present invention, the formed glass steel in pultrusion die of the reinforcing material behind the dipping is supported a tree, used in making timber for boats crude green body, again fiberglass is supported a tree, used in making timber for boats crude green body and put into curing mold formed glass steel support a tree, used in making timber for boats; Elder generation's pultrusion is solidified again; Compare through pultrusion or curing molding with the existing glass steel, the present invention has improved the toughness of the compound cover of fiberglass, through the support a tree, used in making timber for boats structure that forms; The strength and stiffness that support a tree, used in making timber for boats have not only been improved; Also solve the low problem of fiberglass elastic modelling quantity, overcome the defective that fiberglass self exists, and fiberglass has supported a tree, used in making timber for boats and construction tool is used more reliable.
Two, d step of the present invention supports the interior composite members that a tree, used in making timber for boats inner chamber is complementary for timber being shaped to fiberglass; Said e step is interior composite members to be embedded fiberglass support in the inner chamber of a tree, used in making timber for boats, is shaped to fiberglass wood composite a tree, used in making timber for boats, and composite members can embed in the fiberglass support a tree, used in making timber for boats in making; Interior composite members is embedded fiberglass to be supported in a tree, used in making timber for boats inner chamber; Be shaped to fiberglass wood composite a tree, used in making timber for boats, making fiberglass support a tree, used in making timber for boats can be combined into one with the interior composite members that timber forms closely, thereby improves the intensity of fiberglass wood composite a tree, used in making timber for boats; Intensity is high, and is in light weight.
Three, among the present invention, in the said dipping, the dip time of glass fiber yarn is 15-20s; The dip time of glass fabric and/or glass mat is 15-20s, and the gel content of resin mixture is 40-45%, has guaranteed that glass fibre fully floods; Adopting gel content is 40-45% resin mixture, and gel content is suitable, does not have white silk between glass fibre and exists; The crisp type of the product of moulding is big if gel content is excessive, and the little then cohesive of gel content is relatively poor, poor mechanical property.
Four, among the present invention, in the pultrusion die of pulltrusion device, put into reinforcing material, at 600-700KN/m
2Under the pulling force, 3-5 minutes formed glass steel of pultrusion support a tree, used in making timber for boats crude green body, and it is good that the fiberglass of moulding supports a tree, used in making timber for boats crude green body performance, and like not pultrusion under this pulling force and time, fiberglass supports a tree, used in making timber for boats crude green body inside and occurs cracking easily or surfaces of tacky occurs.
Five, among the present invention; In the said pultrusion, the placement of reinforcing material for putting into the glass fiber yarn of internal layer earlier, is put into outer field glass fabric and/or glass mat in proper order again; Make fiberglass support a tree, used in making timber for boats and have axially and tensile strength radially, increased the rigidity that fiberglass supports a tree, used in making timber for boats.
Six, among the present invention, fiberglass supports in the curing mold of a tree, used in making timber for boats crude green body entering heat cure molding device, and curing molding fiberglass supports a tree, used in making timber for boats, through the curing molding after the pultrusion, makes the size of fiberglass support a tree, used in making timber for boats more stable, is more suitable in being applied in the wood composite a tree, used in making timber for boats.
Seven, among the present invention, said curing molding is made up of two sections curing, under 50 ℃ of-70 ℃ of temperature, solidifies 5-7 minutes, under 130 ℃ of-150 ℃ of temperature, solidifies 6-7 minutes, makes the heat release of resin copolymerization point, and it is more stable to make fiberglass support a tree, used in making timber for boats performance.
Eight, in the curing molding of the present invention, the hauling speed of curing mold is 0.4-1.2m/min, and the length of curing mold is 0.5-1.5m; Make gel time and hardening time synchronous, combine, if speed is slow excessively with solidification temperature; Then exist gel excessively to make fiberglass support the inner embrittlement easily of a tree, used in making timber for boats, crackle occurs, if speed is too fast; Occur surfaces of tacky easily, that is to say, then can make fiberglass support a tree, used in making timber for boats foaming or premature gelation curing if under this technological parameter, do not carry out; Cause fiberglass to support a tree, used in making timber for boats internal stress and increase, reduce properties of product.
Nine, among the present invention, fiberglass supports a tree, used in making timber for boats at 50 ℃-70 ℃, interior composite members is embedded fiberglass support in a tree, used in making timber for boats inner chamber; 50 ℃-70 ℃ is under the state of first gel, to embed, and fiberglass support a tree, used in making timber for boats and wooden a tree, used in making timber for boats can better be combined, and structure is more stable; The wood composite a tree, used in making timber for boats can not produce twisted phenomena, if not under this temperature, be higher than this temperature; It is bigger that fiberglass supports a tree, used in making timber for boats fragility, damages fiberglass easily and support a tree, used in making timber for boats, is lower than this temperature and has bonding bad shortcoming; Can not be compound in aggregates, cause receiving force intensity not high.
Ten, fiberglass support a tree, used in making timber for boats and wooden a tree, used in making timber for boats adopt method of the present invention compound, make fiberglass can directly be used for the construction instrument, have overcome the problem that fiberglass self stiffness is poor, elastic modelling quantity is low.
11, in the c step of the present invention, fiberglass supports and is shaped to fiberglass support a tree, used in making timber for boats hollow and that the cross section is rectangular in a tree, used in making timber for boats crude green body entering curing mold, and weight is lighter; Speed of application is fast, and it is big with the steel pipe coefficient of contact friction in use that fiberglass supports a tree, used in making timber for boats, is difficult for landing; Reduced construction safety risk during job space, be easy to be shaped to required physical dimension, the size rule is straight; The concrete of cast is smooth; Can reuse repeatedly, reduce building cost, material usage is few under the situation that has guaranteed intensity.
Description of drawings
Fig. 1 is the fiberglass wood composite a tree, used in making timber for boats structural representation of moulding of the present invention
Fig. 2 supports a tree, used in making timber for boats structural representation for the fiberglass rectangle of moulding of the present invention
Be labeled as among the figure: 1, fiberglass supports a tree, used in making timber for boats, and 2, interior composite members.
The specific embodiment
Embodiment 1
A kind of construction comprises the steps: with the preparation method of fiberglass support a tree, used in making timber for boats
A, reinforcing material get in the resin mixture and flood, and wherein reinforcing material is in order to the glass fiber yarn of increase longitudinal strength with in order to increase the glass fabric and/or the glass mat of transverse strength;
Reinforcing material behind b, the dipping gets into formed glass steel support a tree, used in making timber for boats crude green body in the pultrusion die;
C, fiberglass support a tree, used in making timber for boats crude green body and get into formed glass steel support a tree, used in making timber for boats in the curing mold.
Fiberglass support a tree, used in making timber for boats through the said method moulding is a rectangular configuration.
In the present invention's dipping, the dip time of glass fiber yarn is 15s, and the dip time of glass fabric and/or glass mat is 15s, and the gel content of resin mixture is 45%.
In the b step of the present invention, in the pultrusion die of pulltrusion device, put into reinforcing material, at 600KN/m
2Under the pulling force, 5 minutes formed glass steel of pultrusion support a tree, used in making timber for boats crude green body.
In the pultrusion of the present invention, the placement of reinforcing material for putting into the glass fiber yarn of internal layer earlier, is put into outer field glass fabric and/or glass mat in proper order again.
In the c step of the present invention, fiberglass supports in the curing mold of a tree, used in making timber for boats crude green body entering heat cure molding device, and curing molding fiberglass supports a tree, used in making timber for boats.
Preferred implementation of the present invention is that curing molding is made up of two sections curing, under 50 ℃ of temperature, solidifies 7 minutes, under 130 ℃ of temperature, solidifies 7 minutes.
Further, in the curing molding, the hauling speed of curing mold is 0.4m/min, and the length of curing mold is 1.5m.
Embodiment 2
A kind of construction comprises the steps: with the preparation method of fiberglass support a tree, used in making timber for boats
A, reinforcing material get in the resin mixture and flood, and wherein reinforcing material is in order to the glass fiber yarn of increase longitudinal strength with in order to increase the glass fabric and/or the glass mat of transverse strength;
Reinforcing material behind b, the dipping gets into formed glass steel support a tree, used in making timber for boats crude green body in the pultrusion die;
C, fiberglass support a tree, used in making timber for boats crude green body and get into formed glass steel support a tree, used in making timber for boats in the curing mold.
The present invention comprises also in d step and the e step that said d step supports the interior composite members that a tree, used in making timber for boats inner chamber is complementary for timber being shaped to fiberglass; Said e step is interior composite members to be embedded fiberglass support in the inner chamber of a tree, used in making timber for boats, is shaped to fiberglass wood composite a tree, used in making timber for boats.
Fiberglass support a tree, used in making timber for boats through the said method moulding is the rectangular structure in cross section with opening, embeds wooden a tree, used in making timber for boats again, and structure is more stable.
In the present invention's dipping, the dip time of glass fiber yarn is 20s, and the dip time of glass fabric and/or glass mat is 20s, and the gel content of resin mixture is 40%.
In the b step of the present invention, in the pultrusion die of pulltrusion device, put into reinforcing material, at 700KN/m
2Under the pulling force, 3 minutes formed glass steel of pultrusion support a tree, used in making timber for boats crude green body.
In the pultrusion of the present invention, the placement of reinforcing material for putting into the glass fiber yarn of internal layer earlier, is put into outer field glass fabric and/or glass mat in proper order again.
In the c step of the present invention, fiberglass supports in the curing mold of a tree, used in making timber for boats crude green body entering heat cure molding device, and curing molding fiberglass supports a tree, used in making timber for boats.
Preferred implementation of the present invention is that said curing molding is made up of two sections curing, under 70 ℃ of temperature, solidifies 5 minutes, under 150 ℃ of temperature, solidifies 6 minutes.
Further, in the curing molding, the hauling speed of curing mold is 1.2m/min, and the length of curing mold is 0.5m.
Another preferred implementation of the present invention is that in the e step, fiberglass supports a tree, used in making timber for boats in the time of 50 ℃, interior composite members is embedded fiberglass support in a tree, used in making timber for boats crude green body inner chamber.
Embodiment 3
A kind of construction comprises the steps: with the preparation method of fiberglass support a tree, used in making timber for boats
A, reinforcing material get in the resin mixture and flood, and wherein reinforcing material is in order to the glass fiber yarn of increase longitudinal strength with in order to increase the glass fabric and/or the glass mat of transverse strength;
Reinforcing material behind b, the dipping gets into formed glass steel support a tree, used in making timber for boats crude green body in the pultrusion die;
C, fiberglass support a tree, used in making timber for boats crude green body and get into formed glass steel support a tree, used in making timber for boats in the curing mold.
The present invention comprises also in d step and the e step that said d step supports the interior composite members that a tree, used in making timber for boats inner chamber is complementary for timber being shaped to fiberglass; Said e step is interior composite members to be embedded fiberglass support in the inner chamber of a tree, used in making timber for boats, is shaped to fiberglass wood composite a tree, used in making timber for boats.
In the present invention's dipping, the dip time of glass fiber yarn is 18s, and the dip time of glass fabric and/or glass mat is 19s, and the gel content of resin mixture is 42%.
In the said b step, in the pultrusion die of pulltrusion device, put into reinforcing material, at 650KN/m
2Under the pulling force, 4 minutes formed glass steel of pultrusion support a tree, used in making timber for boats crude green body.
In the pultrusion of the present invention, the placement of reinforcing material for putting into the glass fiber yarn of internal layer earlier, is put into outer field glass fabric and/or glass mat in proper order again.
In the c step of the present invention, fiberglass supports in the curing mold of a tree, used in making timber for boats crude green body entering heat cure molding device, and curing molding fiberglass supports a tree, used in making timber for boats.
Preferred implementation of the present invention is that said curing molding is made up of two sections curing, under 60 ℃ of temperature, solidifies 6 minutes, under 140 ℃ of temperature, solidifies 7 minutes.
Further, in the curing molding, the hauling speed of curing mold is 0.8m/min, and the length of curing mold is 1.0m.
Another preferred implementation of the present invention is that in the said e step, fiberglass supports a tree, used in making timber for boats in the time of 70 ℃, interior composite members is embedded fiberglass support in a tree, used in making timber for boats crude green body inner chamber.Can also support a tree, used in making timber for boats in the time of 60 ℃ by fiberglass, interior composite members embedded fiberglass support in a tree, used in making timber for boats crude green body inner chamber.Aforementioned embedded mode is a preferred implementation, is not limited thereto temperature, also can embed at normal temperatures.
The above is merely the preferred embodiments of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a construction is supported the preparation method of a tree, used in making timber for boats with fiberglass, it is characterized in that, comprises the steps:
A, reinforcing material get in the resin mixture and flood, and wherein reinforcing material is in order to the glass fiber yarn of increase longitudinal strength with in order to increase the glass fabric and/or the glass mat of transverse strength;
Reinforcing material behind b, the dipping gets into formed glass steel support a tree, used in making timber for boats crude green body in the pultrusion die;
C, fiberglass support a tree, used in making timber for boats crude green body and get into formed glass steel support a tree, used in making timber for boats in the curing mold.
2. construction according to claim 1 is characterized in that with the preparation method of fiberglass support a tree, used in making timber for boats: comprise also in d step and the e step that said d step supports the interior composite members that a tree, used in making timber for boats inner chamber is complementary for timber being shaped to fiberglass; Said e step is interior composite members to be embedded fiberglass support in the inner chamber of a tree, used in making timber for boats, is shaped to fiberglass wood composite a tree, used in making timber for boats.
3. the preparation method of a tree, used in making timber for boats is supported in construction according to claim 1 and 2 with fiberglass; It is characterized in that: in the said dipping; The dip time of glass fiber yarn is 15-20s; The dip time of glass fabric and/or glass mat is 15-20s, and the gel content of resin mixture is 40-45%.
4. construction according to claim 1 and 2 is characterized in that: in the said b step, in the pultrusion die of pulltrusion device, put into reinforcing material, at 600-700KN/m with the preparation method of fiberglass support a tree, used in making timber for boats
2Under the pulling force, 3-5 minutes formed glass steel of pultrusion support a tree, used in making timber for boats crude green body.
5. the preparation method of a tree, used in making timber for boats is supported in construction according to claim 1 and 2 with fiberglass; It is characterized in that: in the said pultrusion; The placement of reinforcing material for putting into the glass fiber yarn of internal layer earlier, is put into outer field glass fabric and/or glass mat in proper order again.
6. construction according to claim 1 and 2 is characterized in that with the preparation method of fiberglass support a tree, used in making timber for boats: in the said c step, fiberglass supports in the curing mold of a tree, used in making timber for boats crude green body entering heat cure molding device, and curing molding fiberglass supports a tree, used in making timber for boats.
7. the preparation method of a tree, used in making timber for boats is supported in construction according to claim 1 and 2 with fiberglass; It is characterized in that: said curing molding is made up of two sections curing; Under 50 ℃ of-70 ℃ of temperature, solidified 5-7 minutes, under 130 ℃ of-150 ℃ of temperature, solidified 6-7 minutes.
8. construction according to claim 7 is with the preparation method of fiberglass support a tree, used in making timber for boats, and it is characterized in that: in the said curing molding, the hauling speed of curing mold is 0.4-1.2m/min, and the length of curing mold is 0.5-1.5m.
9. construction according to claim 1 is characterized in that with the preparation method of fiberglass support a tree, used in making timber for boats: in the said c step, fiberglass supports and is shaped to fiberglass support a tree, used in making timber for boats hollow and that the cross section is rectangular in a tree, used in making timber for boats crude green body entering curing mold.
10. construction according to claim 2 is characterized in that with the preparation method of fiberglass support a tree, used in making timber for boats: in the said e step, fiberglass supports a tree, used in making timber for boats in the time of 50 ℃-70 ℃, interior composite members is embedded fiberglass support in a tree, used in making timber for boats crude green body inner chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110208899A CN102328442A (en) | 2011-07-25 | 2011-07-25 | Preparation method of glass fiber reinforced plastic supporting balk for building construction |
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| CN201110208899A CN102328442A (en) | 2011-07-25 | 2011-07-25 | Preparation method of glass fiber reinforced plastic supporting balk for building construction |
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| CN102328442A true CN102328442A (en) | 2012-01-25 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278735Y (en) * | 1996-11-02 | 1998-04-15 | 刘东泽 | Frame sections for plastic film greenhouse |
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2011
- 2011-07-25 CN CN201110208899A patent/CN102328442A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278735Y (en) * | 1996-11-02 | 1998-04-15 | 刘东泽 | Frame sections for plastic film greenhouse |
Non-Patent Citations (1)
| Title |
|---|
| 中国玻璃钢工业协会: "《玻璃钢简明技术手册》", 30 June 2004, 化学工业出版社 * |
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