CN202834701U - Polyurethane square pipe section bar and forming system - Google Patents
Polyurethane square pipe section bar and forming system Download PDFInfo
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- CN202834701U CN202834701U CN 201120529477 CN201120529477U CN202834701U CN 202834701 U CN202834701 U CN 202834701U CN 201120529477 CN201120529477 CN 201120529477 CN 201120529477 U CN201120529477 U CN 201120529477U CN 202834701 U CN202834701 U CN 202834701U
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Abstract
The utility model relates to a high strength and low gravity polyurethane square pipe section bar which has excellent isolation, microwave transmission, anti-corrosion and heat insulation performance and a forming system. The skeleton of the square pipe section bar comprises a multi-beam glass fiber densely covered layer and a glass fiber mat, and polyurethane resin composites with the inner and outer sides of the skeleton to form a polyurethane square pipe section bar. The utility model is advantageous in following aspects: being light in weight and high in strength; energy conservation and heat insulation; healthy, green and energy saving; corrosion resisting and aging resisting; long in service lifetime and good in dimension stability; excellent in weather performance, with the high temperature performance being great and the low temperature performance being better; good insulating properties; good damping performance; being colorful, since the polyurethane composite material is high in hardness and can be painted with different colors to meet the requirements for different use in all styles and levels; and excellent in fatigue resistance, since the polyurethane composite material is high in fatigue resistance, the safety and reliability of using the material can be ensured.
Description
Technical field
The utility model relates to a kind of high strength, low-gravity, insulation, thoroughly polyurethane square-tube-shaped section and the formation system of microwave, corrosion-resistant and good heat-insulation effect, belongs to section bar manufacturing and the application of composite material.
Background technique
At present, the angle steel of selling on the market, i shaped steel, channel-section steel, square steel, H shape steel etc. all adopt metallic material to make.Its deficiency: the one, than great, proportion; The 2nd, heat-shielding performance is poor; The 3rd, corrosion-resistant, easy-to-rust.
Summary of the invention
Purpose of design: avoid the deficiency in the background technique, design a kind of high strength, low-gravity, insulation, thoroughly polyurethane square-tube-shaped section and the formation system of microwave, corrosion-resistant and good heat-insulation effect.
Design proposal: in order to realize above-mentioned purpose of design.1, adopting polyurethane resin as the selection of the composite material of section bar, is one of technical characteristics 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 wearability; The 9th, senior accurate manufacturing and fastening significantly improves the screw pull-out strength degree; The tenth, excellent surface finishment.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 light stability, 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 manufacturing efficiency-has faster improved pile line operation speed.⑷ excellent in flame retardance gives out the cigarette of much less than polyester or vinyl resin.⑸ environmental protection, environmental friendliness.⑹ produce without superoxide without vinyl benzene.2, the design of polyurethane composite material product moulding technique is two of technical characteristics of the present utility model.The purpose of doing like this is: with the pultrude process of traditional unsaturated polyester 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 glass steel production technology, be not have cooling die or cooling section.3, the employing of glass fiber mat is three of technical characteristics of the present utility model.The purpose of doing like this is: because glass fiber mat is to be made of crisscross glass fibre, formed felt not only vertically plays stiffening rib, and laterally plays stiffening rib, and formed product not only flex 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 thermal conductivity of compound polyurethane material is 0.219W/mk, the thermal conductivity of aluminium is 237.00 W/mk, the thermal conductivity of galvanized steel is 62.000W/mk, under identical condition, with regard to material, the capacity of heat transmission of aluminium material is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the poor conductor that compound polyurethane material is heat with galvanized steel with aluminium; Compound polyurethane material has good rigidity and intensity, and fabulous plasticity is arranged again, therefore can design the structure of glass curtain wall profile shapes die cavity according to the technical requirements of glass curtain wall, processes the profile material of various shapes.
Technological scheme 1: the polyurethane square-tube-shaped section consists of the square-tube-shaped section skeleton by the densely covered layer of multi beam glass fibre and glass fiber mat, compound and formation polyurethane square-tube-shaped section outside polyurethane resin and square-tube-shaped section skeleton are interior.
Technological scheme 2: the formation system of polyurethane square-tube-shaped section, by square-tube-shaped section polyurethane resin injection mold, cooling die and heat setting mould consist of, square-tube-shaped section polyurethane resin injection mold has two imports, the one, for the polyurethane material feeding mouth and be positioned at square-tube-shaped section polyurethane resin injection mold top, one is the glass fiber bundle import, the import of square-tube-shaped section polyurethane resin injection mold enters the densely covered layer of bundle glass fibre and glass fiber mat, outlet is communicated with the cooling die import, the outlet of cooling die is communicated with the import of heat setting mould, and the outlet of heat setting mould is square-tube-shaped polyurethane composite material pultrusion outlet.
The utility model is compared with background technique, and 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, its tensile strength 450～650MPa, approach with Ordinary Steel, flexural strength is greater than 1200MPa, modulus of elasticity in static bending 48000MPa; The 2nd, energy-saving heat preserving, heat insulation, the compound polyurethane material thermal conductivity is 0.219W/mk, only has 1/100～1/1000 of metal, is good thermoinsulation material; The 3rd, health, environmental protection, energy-saving effect are remarkable; The 4th, compound polyurethane material does not contain vinyl benzene aborning, thereby 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 exposure 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 substance, seawater and humidity have preferably resistivity, effect to microorganism also has resistance, that its this specific character that has especially is fit to be used in is rainy, humidity and coastal area, and the place of the medium that is corrosive; The 6th, good stability of the dimension, the linear expansion coeffcient of compound polyurethane material is 5.6 * 10-6/ ℃, is lower than steel and aluminum alloy, is 1/15 of plastics, so the glass good stability; The 7th, weather resisteant is good, and compound polyurethane material belongs to thermosetting plastics, namely forms three-dimensional netted structure of molecule after the resin crosslinks, becomes insoluble not melt, also can not melt even be heated.The compound polyurethane material heat distortion temperature is more than 200 ℃, and not only resistance to high temperature is good, and resistance to low temperature is better; The 8th, good insulation preformance, compound polyurethane material is good insulating material, it is not affected by electromagnetic wave, do not reflect radio waves, microwave is good thoroughly, can bear high voltage and do not damage, so polyurethane composite profile has special purposes to the building of open-air temporary building and communication system; The 9th, damping performance is good, the Young's modulus of compound polyurethane material is 20900, the section bar 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, fatigue resistance, the fatigue resistance of compound polyurethane material is very high, thereby guarantees the safety and reliability of materials'use; 11 is that 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 thermal conductivity of compound polyurethane material is 0.219W/mk, the thermal conductivity of aluminium is 237.00W/mk, the thermal conductivity of galvanized steel is 62.000W/mk, under identical condition, with regard to material, the capacity of heat transmission of aluminium material is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the poor conductor that compound polyurethane material is heat with galvanized steel with aluminium, because compound polyurethane material has good rigidity and intensity, fabulous plasticity is arranged again, therefore can design the structure of section bar die cavity as requested, process the section bar of various shapes.
Description of drawings
Fig. 1 is the skeletal structure schematic diagram of polyurethane square-tube-shaped section.
Fig. 2 is the structural representation of polyurethane square-tube-shaped section.
Fig. 3 is the block diagram of polyurethane square-tube-shaped section production system.
Embodiment
Embodiment 1: with reference to attached Fig. 1 and 2.A kind of polyurethane square-tube-shaped section consists of square-tube-shaped section skeleton 1 by the densely covered layer of multi beam glass fibre and glass fiber mat, and polyurethane resin 2 is compound and formation polyurethane square-tube-shaped section with the interior outside of square-tube-shaped section skeleton.The densely covered layer of glass fibre in the described square-tube-shaped section skeleton 1 coats a glass fiber mat.Be equipped with the densely covered layer of glass fibre between the glass fiber mat in the described square-tube-shaped section skeleton 1.Described square-tube-shaped section skeleton 1 is made of the densely covered layer of glass fibre and glass fiber mat stack.That is to say, the forming skeleton 1 of square-tube-shaped section is made of the densely covered layer of bundle glass fibre and glass fiber mat, every glass fibre face during polyurethane resin 2 and multi beam glass fibre consist of fully compound and be compounded with between the glass fibre of polyurethane resin 2 mutually bonding, solidify and consist of required square-tube-shaped section, namely the outside refers to the face of every glass fibre in the polyurethane resin section bar in the described square-tube-shaped section skeleton.Glass fibre in the described square-tube-shaped section skeleton layer that gathers coats a glass fiber mat 101, or 101 of glass fiber mats are equipped with the glass fibre layer that gathers, or glass fibre gather layer and glass fiber mat 101 stack formations.Glass fibre is that 60%-90%, polyurethane resin are 10%-40% in the described polyurethane section bar.
Embodiment 2: with reference to accompanying drawing 3.On embodiment 1 basis, the formation system of polyurethane square-tube-shaped section, by square-tube-shaped section polyurethane resin injection mold 3, cooling die 5 and heat setting mould 6 consist of, square-tube-shaped section polyurethane resin injection mold 3 has two imports, the one, for polyurethane material feeding mouth 4 and be positioned at section bar polyurethane resin injection mold 3 tops, one is the glass fiber bundle import, the import of square-tube-shaped section polyurethane resin injection mold enters the densely covered layer of multi beam glass fibre and glass fiber mat, outlet is communicated with cooling die 5 imports, the outlet of cooling die is communicated with 6 imports of heat setting mould, and the outlet of heat setting mould is square-tube-shaped polyurethane composite material pultrusion outlet.Described heat setting mould consisted of by 2 ~ 3 heating-up zone and temperature from low to high, the Temperature Setting scope is: 90C ° ~ 250C °.Described cooling die is the cooling by water mould, and the temperature of its cooling water is 0C ° ~ 25C °.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, square tube moulding and pultrusion speed are complementary.
Embodiment 1-1: on the basis of embodiment 1 and 2, adopt 35%-40% polyurethane resin and 60%-75% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of the polyurethane square-tube-shaped section again, its physical mechanical and mechanical property are better.
Embodiment 1-2: on the basis of embodiment 1 and 2, adopt 30%-35% polyurethane resin and 65%-70% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of the polyurethane square-tube-shaped section again, its physical mechanical and mechanical property are good.
Embodiment 1-3: on the basis of embodiment 1 and 2, adopt 25%-30% polyurethane resin and 70%-75% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of the polyurethane square-tube-shaped section again, its physical mechanical and mechanical property are better.
Embodiment 1-4: on the basis of embodiment 1 and 2, adopt 20%-25% polyurethane resin and 75%-80% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of the polyurethane square-tube-shaped section again, its physical mechanical and mechanical property are best.
Embodiment 1-5: on the basis of embodiment 1 and 2, adopt 15%-20% polyurethane resin and 80%-85% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of polyurethane square-tube-shaped section, its physical mechanical and good mechanical properties again.
Embodiment 1-6: on the basis of embodiment 1 and 2, adopt 10%-15% polyurethane resin and 85%-90% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of the polyurethane square-tube-shaped section again, its physical mechanical is relative with mechanical property better.
Embodiment 1-7: on embodiment 1 basis, on the basis of embodiment 1 and 2, adopt 10% polyurethane resin and 90% glass by the formation system of polyurethane square-tube-shaped section, both can pultrusion become the densely covered formation of glass fibre square-tube-shaped section skeleton 1, polyurethane resin and the densely covered formation of glass fibre square-tube-shaped section skeleton 1 can be consisted of the polyurethane square-tube-shaped section again, 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 polyurethane square-tube-shaped section of institute's pultrusion.
Above-mentioned glass refers to glass fibre or glass fibre and glass fiber mat, or carbon fiber, or glass fiber, or the reinforcing fiber such as polyster fibre, or metallicity strengthens silk; Above-mentioned glass felt refers to the glass fiber mat fiberglass gridding cloth, or glass fiber cloth 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 (6)
1. a polyurethane square-tube-shaped section is characterized in that: consist of the square-tube-shaped section skeleton by the densely covered layer of multi beam glass fibre and glass fiber mat, thereby outside composite polyurethane resin consists of the polyurethane square-tube-shaped section in the square-tube-shaped section skeleton.
2. polyurethane square-tube-shaped section according to claim 1 is characterized in that: the densely covered layer coating of the glass fibre in a described square-tube-shaped section skeleton glass fiber mat.
3. polyurethane square-tube-shaped section according to claim 1 is characterized in that: be equipped with the densely covered layer of glass fibre between the glass fiber mat in the described square-tube-shaped section skeleton.
4. polyurethane square-tube-shaped section according to claim 1 is characterized in that: described square-tube-shaped section skeleton is superposeed and is consisted of by gather layer and glass fiber mat of glass fibre.
5. polyurethane square-tube-shaped section according to claim 1 is characterized in that: the outside refers to the gather face of layer and glass fiber mat of multi beam glass fibre in the polyurethane resin section bar in the described square-tube-shaped section skeleton.
6. make claim 1 to the formation system of polyurethane square-tube-shaped section claimed in claim 5 for one kind, it is characterized in that by square-tube-shaped section polyurethane resin injection mold, cooling die and heat setting mould consist of, square-tube-shaped section polyurethane resin injection mold has two imports, the one, for the polyurethane material feeding mouth and be positioned at square-tube-shaped section polyurethane resin injection mold top, one is the glass fiber bundle import, the import of square-tube-shaped section polyurethane resin injection mold enters the densely covered layer of multi beam glass fibre and glass fiber mat, outlet is communicated with the cooling die import, the outlet of cooling die is communicated with the import of heat setting mould, and the outlet of heat setting mould is square-tube-shaped polyurethane composite material pultrusion outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120529477 CN202834701U (en) | 2011-12-17 | 2011-12-17 | Polyurethane square pipe section bar and forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120529477 CN202834701U (en) | 2011-12-17 | 2011-12-17 | Polyurethane square pipe section bar and forming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834701U true CN202834701U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120529477 Expired - Fee Related CN202834701U (en) | 2011-12-17 | 2011-12-17 | Polyurethane square pipe section bar and forming system |
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| Country | Link |
|---|---|
| CN (1) | CN202834701U (en) |
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2011
- 2011-12-17 CN CN 201120529477 patent/CN202834701U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20141217 |
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| EXPY | Termination of patent right or utility model |