CN202899889U - A polyurethane combined-type energy-saving window frame or window sash frame and a fiber reinforced plastic section bar forming system - Google Patents
A polyurethane combined-type energy-saving window frame or window sash frame and a fiber reinforced plastic section bar forming system Download PDFInfo
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- CN202899889U CN202899889U CN 201120529496 CN201120529496U CN202899889U CN 202899889 U CN202899889 U CN 202899889U CN 201120529496 CN201120529496 CN 201120529496 CN 201120529496 U CN201120529496 U CN 201120529496U CN 202899889 U CN202899889 U CN 202899889U
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Abstract
The utility model relates to a polyurethane combined-type energy-saving window frame or window sash frame, which is characterized by high strength, low specific gravity, insulation, microwave transmission, corrosion resistance, good heat insulation effect and good decorative performance, and a fiber reinforced plastic section bar forming system. The combined-type energy-saving window frame or window sash frame comprises a window frame body or window sash frame body. One side of the window frame body or window sash frame body is a fiber reinforced plastic section bar and the other side of the window frame body or window sash frame body is a wooden section bar, the fiber reinforced plastic section bar side being matched with the wooden section bar side for forming the combined-type energy-saving window frame or window sash frame. A framework of the fiber reinforced plastic section is formed by a multi-bundle glass fiber dense-distribution layer and glass fiber blankets. Polyurethane resin is combined with the inner and outer surfaces of the window frame or window sash frame section bar forming framework for forming a combined-type energy-saving window frame or window sash frame section bar. In the framework, the fiber layer wraps up the glass fiber blankets, the fiber layer is disposed among the glass fiber blankets, or the fiber layer and the glass fiber blankets are stacked together. The polyurethane combined-type energy-saving window frame or window sash frame has the advantages that: firstly, weight is light, and strength is high; secondly, energy conservation, heat preservation and heat insulation are realized; thirdly, health care, environmental protection and energy conservation effects are remarkable; fourthly, corrosion resistance and aging resistance are realized and the service lifetime is long; fifthly, dimension stability is fine; sixthly, weather resistance is fine, high temperature resistance is fine and low temperature resistance is even finer; seventhly, insulation property is fine; eighthly, damping performance is good; and ninthly, the fatigue resistance is guaranteed because polyurethane composite material is extremely high in fatigue resistance and thus safety and reliability in use of the material are ensured.
Description
Technical field
The utility model relates to a kind of high strength, low-gravity, insulation, thoroughly microwave, corrosion-resistant, good heat-insulation effect and ornamental strong polyurethane combined type energy-saving window frame or the formation system of window sash frame and glass fiber reinforced plastic shapes, belongs to combined type energy-saving window frame and sash frame section bar manufacturing and application.
Background technology
At present, popular building doors and windows on the market, the main door and window that adopts the materials such as wood, aluminium alloys, plastic-steel, bridge-cut-off aluminum, wooden aluminium is compound or plastic-aluminum combined.The coefficient of thermal conductivity of timber is 0.15 kal/ (m
2Hk), thereby have fabulous insulation, heat insulation, ornamental, but the sealing performance of wooden door and window is relatively poor, timber is water funk and exposure in sunshine, the easy moisture absorption and deformation of timber in wet environment; The coefficient of thermal conductivity of aluminium alloys is 187 kal/ (m
2Hk) about, its heat conductivility is fabulous, thereby the heat-proof quality of made door and window is relatively poor; The coefficient of thermal conductivity of plastics is (0.2～0.13) kal/ (m
2Hk), its heat conductivility only has the one thousandth of aluminium alloys, and plastic irregular profile can weld, and plastic-steel door and window has good insulation, sealing, heat insulation performance, but the decorate properties of plastics is relatively poor.
Bridge-cut-off aluminum adopts nylon material with two original aluminium alloy deformed bar bridge joints together, thereby the inside and outside thermal source of doorframe and window frame disconnects, and reaches the loss that reduces energy, and the sealing performance of its door and window is compared with common aluminum alloy does not have basic change; The performance of the door and window that wood aluminium is compound improves a lot, but door and window in use, and rainwater can contact with the timber in the door and window, and the time has been grown timber can mouldy or distortion.Although plastic-aluminum combined do not have because phenomenon mouldy or distortion can occur rainwater, the interior decoration poor-performing of door and window, and it is yielding, easily aging to be heated.
Glass fiber reinforced plastic door and window namely adopts the compound new material of unsaturated polyester resin and glass fiber, the window and door system that processes.Unsaturated polyester resin is a kind of thermosetting resin, when its under the effect of heat or initator, curablely become a kind of insoluble macromolecule network polymers that does not melt.But this polymer machinery intensity is very low, can not satisfy most of requirement of using, and can become a kind of composite material when strengthening with glass fiber, is commonly called as " glass fiber reinforced plastic " (English name Fiber Reinforced Plastics is called for short FRP).The various aspects of performance such as mechanical strength of " glass fiber reinforced plastic " are compared with casting resin and are greatly improved.But unsaturated polyester resin glass fiber reinforced plastic profile shapes when will add longitudinally glass fiber, also must add the glass mat body in the pultrusion manufacturing process, thereby its speed and efficient are lower; Simultaneously can produce a small amount of styrene aborning.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design a kind of high strength, low-gravity, insulation, thoroughly microwave, corrosion-resistant, good heat-insulation effect and ornamental strong polyurethane combined type energy-saving window frame or the formation system of window sash frame and glass fiber reinforced plastic shapes.
Design scheme: in order to realize above-mentioned purpose of design.The application utilizes polyurethane and glass fiber to be combined into a kind of new material, it is the polyurethane glass steel composite material, this compound polyurethane material has extraordinary physical and mechanical properties, can the Substitute For Partial metal, use is in field very widely, so the application is its design gate window frame or sash frame section bar, its polyurethane window frame, window sash frame not only have good impact strength, and stop infiltration of rainwater very good, the more important thing is that the performance aspect thermal insulation is then even better.
1, adopting polyurethane resin as the selection of the composite material of section bar, is one of technical characterictic of the present utility model.The purpose of doing like this is: ⑴ polyurethane resin and other resin-phase ratios, and the advantage of compound polyurethane material: the one, high longitudinal strength; The 2nd, increased glass felt, improved lateral performance; The 3rd, have the highest fiber capacity; The 4th, higher intensity and hardness; The 5th, increased the complexity of component; The 6th, reduced wall thickness; The 7th, stronger profiled outline can be crossed over larger distance; The 8th, good shock resistance and good mar proof; The 9th, senior accurate manufacturing and fastening significantly improves the screw pull-out strength degree; The tenth, excellent finish.⑵ have well weather-proof, durability: the one, have fabulous corrosion resistance; The 2nd, low water absorption rate; The 3rd, have better temperature stability; The 4th, have better photostability, aliphatic light stable resin can be arranged.⑶ better economy: the one, reduced cost; The 2nd, content of glass fiber high (also gaining in strength simultaneously); The 3rd, stronger product can support longer span; The 4th, the pultrusion speed of higher production efficiency-has faster improved pile line operation speed.⑷ excellent in flame retardance gives out the cigarette of much less than polyester or vinyl.⑸ environmental protection, environmental friendliness.⑹ produce without peroxide without styrene.
2, the design of polyurethane composite material product moulding technique is two of technical characterictic of the present utility model.The purpose of doing like this is: with the pultrude process of traditional unsaturated polyester (UP) glass steel profile shapes be essentially identical, different places be: the mode of ⑴ resin injection is different, and unsaturated polyester resin is to adopt open interpolation; Polyurethane resin is the mode that adopts airtight injection.⑵ between polyurethane syringe case and the goods mould, increase cooling section; In unsaturated polyester (UP) glass steel production technology, be not have cooling frame or cooling section.
3, the employing of glass mat is three of technical characterictic of the present utility model.The purpose of doing like this is: because glass mat is to be made of crisscross glass fiber, formed felt not only vertically plays reinforcing rib, and laterally plays reinforcing rib, and formed product not only flexing resistance is strong, and fold resistance is good.
Compound polyurethane material has fabulous rigidity and intensity, and Physical and mechanical properties sees attached list.Its complete part substitution of Al alloy and steel, the coefficient of thermal conductivity of compound polyurethane material is 0.219W/mk, the coefficient of thermal conductivity of aluminium is 237.00W/mk, the coefficient of thermal conductivity of galvanized steel is 62.000W/mk, under identical condition, with regard to material, the capacity of heat transmission of aluminum is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the non-conductor that compound polyurethane material is heat with galvanized steel with aluminium, he is not only the preferred material of doing window frame, window sash frame, and because compound polyurethane material has good rigidity and intensity, fabulous plasticity is arranged again, therefore it can be according to the thermoplastic property of various glass fiber reinforced plastics composite materials, the design and be processed into the glass fiber reinforced plastic profile shapes, both can be used as the outdoor section of window frame, window sash frame, also be the skeleton of window frame, window sash frame; Indoor section adopts various former wood sections, as decoration, makes door and window possess energy-efficient performance, has again the characteristics of luxurious wooden door and window simultaneously.
Technical scheme 1: a kind of polyurethane combined type energy-saving window frame or window sash frame, it comprises window frame or window sash frame, described window frame or window sash frame are wooden profile material and glass fiber reinforced plastic shapes face and woody type face identical formation combined type energy-saving window frame or window sash frame for glass fiber reinforced plastic shapes, another side simultaneously, skeleton in the described glass fiber reinforced plastic shapes is made of the densely covered layer of multi beam glass fiber and glass mat, compound and formation polyurethane window frame or sash frame section bar outside polyurethane resin and window frame or sash frame section bar forming skeleton are interior; Fibrage cladding glass mat in the described skeleton, or be equipped with fibrage between glass mat, or fibrage and glass mat stack formation.
Technical scheme 2: the formation system of glass fiber reinforced plastic shapes in a kind of polyurethane combined type energy-saving window frame or the window sash frame, by section bar polyurethane tree injection mold, cooling frame and thermal finalization mould consist of, window frame or sash frame section bar polyurethane resin injection mold have two imports, one is for the polyurethane charging aperture and is positioned at window frame or sash frame section bar polyurethane resin injection mold top, another is the import of multi beam glass fiber, the import of section bar polyurethane tree injection mold enters the densely covered layer of multi beam glass fiber and glass mat, outlet is communicated with the cooling frame import, the outlet of cooling frame is communicated with the import of thermal finalization mould, pulls out polyurethane section bar from the outlet of thermal finalization mould.
The utility model is compared with background technology, the one, high-strength light, the density of glass fiber reinforced plastic shapes is about 2.1, it is lighter 3～4 times than steel, and intensity is very large, and its hot strength 450～650MPa approaches with ordinary carbon steel, bending strength is greater than 1200MPa, modulus of elasticity in static bending 48000MPa, thereby the processing door and window does not need to reinforce with steel lining; The 2nd, energy-saving heat preserving, heat insulation, the compound polyurethane material coefficient of thermal conductivity is 0.219W/mk, only has 1/100～1/1000 of metal, is good thermal insulation material; The 3rd, health, environmental protection, energy-saving effect are remarkable; The 4th, compound polyurethane material does not contain styrene aborning, can not form volatile compound VOC, so environment protection health more; The 5th, compound polyurethane material after testing result meets the index request of construction main body material among the GB6566-2001 " the radioactive material nucleic is limited the quantity of ", assay 0.2, internal radiation index 0.2, external exposure index 0.2; The 5th, corrosion-resistant, ageing-resistant, the life-span is long, looking up with eyes wide open compound polyurethane material together is good resistant material, to acid, alkali, salt and most of organic matter, seawater and humidity have preferably resistivity, effect to microorganism also has resistance, especially be fit to be used in rainy, humidity and coastal area, and the place of the medium that is corrosive; The 6th, good stability of the dimension, compound polyurethane material, linear expansion coeffcient be 5.6 * 10-6/ ℃, be lower than steel and aluminium alloys, be 1/15 of plastics, therefore made window frame good stability of the dimension, the variation of temperature can not affect the normal switch function of window frame; The 7th, weather resisteant is good, compound polyurethane material belongs to thermosetting plastics, namely form three-dimensional netted molecular structure after the resin crosslinks, become insoluble not melt, can not melt even be heated yet, the compound polyurethane material heat distortion temperature is more than 200 ℃, and not only resistance to elevated temperatures is good, and resistance to low temperature is better; The 8th, good insulation preformance, compound polyurethane material is good insulation materials, it is not affected by electromagnetic wave, do not reflect radio wave, microwave is good thoroughly, can bear high voltage and do not damage, so the compound polyurethane material door and window has special purposes to the building of open-air temporary building and communication system; The 9th, damping performance is good, the modulus of elasticity of compound polyurethane material is 20900, the door and window made from it has higher damping frequency, the combination of resin and fiber interface in the compound polyurethane material, have shock-absorbing and a shock resistance, avoided the in working order early damage that causes of low-resonance of structural member; The tenth, rich color, compound polyurethane material hardness is high, but the various coating of application are made versicolor section bar, to adapt to the purposes of different-style and class; 11 is fatigue resistance, and the fatigue resistance of compound polyurethane material is very high, thereby guarantees the safety and reliability of materials'use; 12 is that compound polyurethane material not only has fabulous rigidity and intensity, and the coefficient of thermal conductivity of compound polyurethane material only is 0.219W/mk, the coefficient of thermal conductivity of aluminium is 237.00W/mk, the coefficient of thermal conductivity of galvanized steel is 62.000W/mk, under identical condition, with regard to material, the capacity of heat transmission of aluminum is 1082 times of polyurethane, the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material, door and window is heat insulation, the effect of insulation because compound polyurethane material can improve significantly, reduce energy loss, alleviate the weight of door and window; 13 is window frame or window frame fans that glass fiber reinforced plastic and wood composite consist of, and has both had advantages of glass fiber reinforced plastic, timber, has realized again energy-conserving and environment-protective, the purpose of decoration.
Description of drawings
Fig. 1-the 1st, the structural representation of polyurethane combined type energy-saving doorframe.
Fig. 1-2 is the structural representation of polyurethane combined type energy-saving Door leaf frame.
Fig. 2 is the first structural representation of doorframe or Door leaf frame skeleton embodiment among Fig. 1.
Fig. 3 is the second structural representation of doorframe or Door leaf frame skeleton embodiment among Fig. 1.
Fig. 4 is the third structural representation of doorframe or Door leaf frame skeleton embodiment among Fig. 1.
Fig. 5 is the 4th kind of structural representation of doorframe or Door leaf frame skeleton embodiment among Fig. 1.
Fig. 6 is the 5th kind of structural representation of doorframe or Door leaf frame skeleton embodiment among Fig. 1.
Fig. 7 is the structural representation of polyurethane composite profile formation system.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-1,1-2 and 2.Polyurethane combined type energy-saving window frame or window sash frame, it comprises window frame or window sash frame, described window frame or window sash frame are made of two-component materials, and its window frame or window sash frame are wooden profile material 2 and polyurethane glass fibre reinforced plastic section bar face and woody type face identical formation combined type energy-saving window frame or window sash frame for glass fiber reinforced plastic shapes 1, another side simultaneously; The polyurethane glass fibre reinforced plastic section bar is combined with wooden profile material and is adopted adhesive to be adhesively fixed, or the bonding nailing that adds of adhesive fixes, or it is fixing to adopt plug connector to peg graft.Skeleton 3 in the described glass fiber reinforced plastic shapes 1 is gathered by the multi beam glass fiber and consists of, compound and formation polyurethane window frame or sash frame section bar outside polyurethane is set in 4 fat and window frame or the sash frame section bar forming skeleton.Fibrage cladding glass mat 101 in the described skeleton.The outside refers to the face of every glass fiber in the polyurethane resin section bar in the described sectional materials cage.Fibrage cladding glass mat in the described skeleton, or be equipped with fibrage between glass mat, or fibrage and glass mat stack formation.The outside refers to the gather face of layer and glass mat of multi beam glass fiber in the polyurethane resin section bar in the described sectional materials cage.
Embodiment 2: with reference to accompanying drawing 3.On the basis of embodiment 1,101 of glass mats are equipped with fibrage.
Embodiment 3: with reference to accompanying drawing 4.On the basis of embodiment 1, the densely covered interlayer of glass fiber is equipped with one deck fibrofelt 101.
Embodiment 4: with reference to accompanying drawing 5.On the basis of embodiment 1, glass mat 101 is positioned at outside the densely covered layer of glass fiber.
Embodiment 5: with reference to accompanying drawing 6.On the basis of embodiment 1, fibrage and glass mat 101 stacks consist of.
Embodiment 1-1: on the basis of embodiment 1-5,35%-40% polyurethane and 60%-75% glass can pultrusion polyurethane profile shapess, and its physical mechanical and mechanical property are better.
Embodiment 1-2: on the basis of embodiment 1-5,30%-35% polyurethane and 65%-70% glass can pultrusion polyurethane profile shapess, and its physical mechanical and mechanical property are good.
Embodiment 1-3: on the basis of embodiment 1-5,25%-30% polyurethane and 70%-75% glass can pultrusion polyurethane profile shapess, and its physical mechanical and mechanical property are better.
Embodiment 1-4: on the basis of embodiment 1-5,20%-25% polyurethane and 75%-80% glass can pultrusion polyurethane profile shapess, and its physical mechanical and mechanical property are best.
Embodiment 1-5: on the basis of embodiment 1-5,15%-20% polyurethane and 80%-85% glass can pultrusion polyurethane profile shapess, its physical mechanical and good mechanical properties.
Embodiment 1-6: on the basis of embodiment 1-5,10%-15% polyurethane and 85%-90% glass can pultrusion polyurethane profile shapess, and its physical mechanical is relative with mechanical property better.
Embodiment 1-7: on the basis of embodiment 1-5,10% polyurethane and 90% glass can pultrusion polyurethane profile shapess, and its physical mechanical and mechanical property meet design requirement.
Physical mechanical and the mechanical property of the polyurethane profile shapes of producing according to the above ratio, difference to some extent, its corresponding cost also is different, physical mechanical and the mechanical property of compound polyurethane material are best, simultaneously both economical again, polyurethane resin accounts for 20%, when glass accounts for 80%, and the composite material of institute's pultrusion.
Embodiment 6: with reference to accompanying drawing 7.The formation system of glass fiber reinforced plastic shapes in polyurethane combined type energy-saving window frame or the window sash frame, by section bar polyurethane tree injection mold 5, cooling frame 7 and thermal finalization mould 8 consist of, window frame or sash frame section bar polyurethane resin injection mold 5 have two imports, one is for polyurethane charging aperture 6 and is positioned at window frame or sash frame section bar polyurethane resin injection mold top, another is the import of multi beam glass fiber, the import of polyurethane tree injection mold 5 enters the densely covered layer of multi beam glass fiber and glass mat, outlet is communicated with cooling frame 7 imports, the outlet of cooling frame 7 is communicated with 8 imports of thermal finalization mould, pulls out polyurethane section bar from 8 outlets of thermal finalization mould.Described thermal finalization mould consisted of by 2 ~ 3 thermals treatment zone and temperature from low to high, the Temperature Setting scope is: 90oC ~ 250oC.Described cooling frame is the cooling by water mould, and the temperature of its cooling water is 0oC～25oC.The production beginning initial stage, note adjusting and observe the flow that is expelled to the polyurethane resin in the syringe case, glass can be infiltrated fully, notice that polyurethane resin does not overflow syringe case; Observe the situation that goods solidify, note adjusting the temperature of hot-die, and the speed of tractor, the moulding of goods and pultrusion speed are complementary.
The forming method of glass fiber reinforced plastic shapes in polyurethane combined type energy-saving window frame or the window sash frame, the densely covered layer of multi beam glass fiber and glass mat are after the import that enters section bar polyurethane resin injection mold die cavity, auto arrangement becomes required sectional materials cage under the effect of section bar polyurethane resin injection mold die cavity, that is to say, section bar polyurethane resin injection mold die orifice, the shape of die cavity (cross section) is identical with required profile shapes (cross section), this sectional materials cage is the sealed polyurethane submergence that is injected in the section bar polyurethane resin injection mold by section bar polyurethane resin injection mold the time, soak into, enrich, through the cooling frame cooling, the thermal finalization mould is solidified into required section bar, and this process is continuously, and namely glass fiber continuously enters from the import of section bar polyurethane resin injection mold, the section bar that goes out to be solidified into from the continuously pultrusion of thermal finalization mould.Described compound polyurethane material is to be mixed in 1: 1～1: 4 ratio by isocyanates and polyalcohol to consist of.The heat curing temperature of described thermal finalization mould is 90oC～250oC.Described cooling frame adopts water-cooled, and the temperature of its cooling water is 0oC ~ 25oC.
Polyurethane resin herein is called for short polyurethane.
Above-mentioned glass refers to glass fiber or glass fiber and glass mat, or carbon fiber, or glass fiber, or the fortifying fibre such as polyster fibre, or metallicity strengthens silk; Above-mentioned glass felt refers to the glass mat fiberglass gridding cloth, or glass fabric or the fabrics such as woven dacron or aramid fiber cloth.
What need to understand is: although above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (4)
1. a polyurethane combined type energy-saving window frame or window sash frame, it comprises window frame or window sash frame, it is characterized in that: described window frame or window sash frame are wooden profile material and glass fiber reinforced plastic shapes face and woody type face identical formation combined type energy-saving window frame or window sash frame for glass fiber reinforced plastic shapes, another side simultaneously, skeleton in the described glass fiber reinforced plastic shapes is made of the densely covered layer of multi beam glass fiber and glass mat, compound and formation polyurethane window frame or sash frame section bar outside polyurethane resin and window frame or sash frame section bar forming skeleton are interior; Fibrage cladding glass mat in the described skeleton, or be equipped with fibrage between glass mat, or fibrage and glass mat stack formation.
2. polyurethane combined type energy-saving window frame according to claim 1 or window sash frame is characterized in that: the outside refers to the gather face of layer and glass mat of multi beam glass fiber in the polyurethane resin section bar in the described sectional materials cage.
3. polyurethane combined type energy-saving window frame according to claim 1 or window sash frame is characterized in that: the polyurethane glass fibre reinforced plastic section bar is combined with wooden profile material and is adopted adhesive to be adhesively fixed, or the bonding nailing that adds of adhesive fixes, or it is fixing to adopt plug connector to peg graft.
4. the formation system of glass fiber reinforced plastic shapes in a polyurethane combined type energy-saving window frame or the window sash frame, it is characterized in that by section bar polyurethane tree injection mold, cooling frame and thermal finalization mould consist of, window frame or sash frame section bar polyurethane resin injection mold have two imports, one is for the polyurethane charging aperture and is positioned at window frame or sash frame section bar polyurethane resin injection mold top, another is the import of multi beam glass fiber, the import of section bar polyurethane tree injection mold enters the densely covered layer of multi beam glass fiber and glass mat, outlet is communicated with the cooling frame import, the outlet of cooling frame is communicated with the import of thermal finalization mould, pulls out polyurethane section bar from the outlet of thermal finalization mould.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120529496 CN202899889U (en) | 2011-12-17 | 2011-12-17 | A polyurethane combined-type energy-saving window frame or window sash frame and a fiber reinforced plastic section bar forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120529496 CN202899889U (en) | 2011-12-17 | 2011-12-17 | A polyurethane combined-type energy-saving window frame or window sash frame and a fiber reinforced plastic section bar forming system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556919A (en) * | 2013-11-25 | 2014-02-05 | 哈尔滨森鹰窗业股份有限公司 | Passive in-swinging heat-insulating solid wood window |
| CN111219131A (en) * | 2020-01-14 | 2020-06-02 | 营口暖万佳科技开发有限公司 | Flame-retardant warm edge spacing strip, flame-retardant composite material adopted by same and preparation method of flame-retardant warm edge spacing strip |
| CN114379112A (en) * | 2022-01-16 | 2022-04-22 | 华南农业大学 | Wood-plastic recombined bamboo multi-element composite building part with buffering part and manufacturing method |
-
2011
- 2011-12-17 CN CN 201120529496 patent/CN202899889U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556919A (en) * | 2013-11-25 | 2014-02-05 | 哈尔滨森鹰窗业股份有限公司 | Passive in-swinging heat-insulating solid wood window |
| CN103556919B (en) * | 2013-11-25 | 2016-04-20 | 哈尔滨森鹰窗业股份有限公司 | Insulation solid-wooden window is opened in a kind of passive type |
| CN111219131A (en) * | 2020-01-14 | 2020-06-02 | 营口暖万佳科技开发有限公司 | Flame-retardant warm edge spacing strip, flame-retardant composite material adopted by same and preparation method of flame-retardant warm edge spacing strip |
| CN114379112A (en) * | 2022-01-16 | 2022-04-22 | 华南农业大学 | Wood-plastic recombined bamboo multi-element composite building part with buffering part and manufacturing method |
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