CN202532159U - Polyurethane composite H-shaped profile and forming system - Google Patents

Abstract

The utility model relates to a polyurethane composite H-shaped profile characterized by high strength, low specific gravity, insulation, microwave transmission, corrosion resistance and good heat insulation effect, and a forming system. An H-shaped profile framework is made of a plurality of bundles of glass-fiber-densely-covered layers and glass fiber blankets; and polyurethane resin is composited with the inner surface and the outer surface of the H-shaped profile framework to form the polyurethane composite H-shaped profile. The polyurethane composite H-shaped profile has the following advantages: firstly, the profile is light in weight and high in strength; secondly, the profile is characterized by energy conservation, heat preservation and thermal insulation; thirdly, the profile is healthful, green, and environment-friendly and is remarkable in energy-saving effect; fourthly, the profile is corrosion-resistant and aging-resistant and is long in service life; fifthly, the profile is fine in dimensional stability; sixthly, the profile is fine in weather resistance, fine in high-temperature resistance and better in low-temperature resistance; seventhly, the profile is fine in insulating property; eighthly, the profile is fine in vibration-reducing performance; ninthly, the profile is colorful, and, polyurethane composite material is high in hardness and can be coated with various coatings for manufacture of profiles in various colors, so that the profile can meet the requirements for use of different styles and grades; and tenthly, the polyurethane composite material is extremely high in fatigue resistance so that safety and reliability in use of the polyurethane composite material are ensured.

Description

Polyurethane compound H shape section bar and formation system

Technical field

The utility model relates to a kind of high tenacity, low-gravity, insulation, passes through microwave, polyurethane compound H shape section bar corrosion-resistant and good heat-insulation effect and formation system, belongs to the 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; 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 tenacity, low-gravity, insulation, pass through microwave, polyurethane compound H shape section bar corrosion-resistant and good heat-insulation effect and formation system.

Design proposal: in order to realize above-mentioned purpose of design.1, adopting the selection of polyurethane resin as the composite material of section bar, is one of technical characteristics of the utility model.The purpose of doing like this is: the ⑴ polyurethane resin is compared with other resins, the advantage of compound polyurethane material: the one, and 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 bigger distance; The 8th, good shock resistance and good wearability; The 9th, senior accurate manufacturing and fastening significantly improves screw and extracts dynamics; 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 do not have vinyl benzene, and no superoxide produces.2, the design of polyurethane composite material product moulding technology, be the utility model technical characteristics two.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 that the ⑴ resin injects is different, and unsaturated polyester resin is to adopt open interpolation; Polyurethane resin is the mode that adopts airtight injection.⑵ between polyurethane injection box and the goods mould, increase cooling section; In unsaturated polyester glass steel production technology is not have cooling die or cooling section.3, the employing of glass fiber mat, be the utility model technical characteristics three.The purpose of doing like this is: because glass fiber mat is to be made up 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 physics and mechanical property are seen attached list.Its complete part substitution of Al alloy and steel; The thermal conductivity of compound polyurethane material is 0.219W/mk, and the thermal conductivity of aluminium is 237.00W/mk, and 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 a 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 different shape.

Technological scheme 1: the compound H shape of polyurethane section bar constitutes H shape section bar skeleton by densely covered layer of multi beam glass fibre and glass fiber mat, the compound and formation polyurethane H shape section bar in outside in polyurethane resin and the H shape section bar skeleton.

Technological scheme 2: the compound H shape of polyurethane product moulding system; Constitute by H shape section bar polyurethane resin injection mold, cooling die and heat setting mould; H shape section bar polyurethane resin injection mold has two imports; The one, for the polyurethane material feeding mouth and be positioned at H shape section bar polyurethane resin injection mold top, one is the glass fiber bundle import, and the import of angle bar section bar polyurethane resin injection mold gets into gather layer and glass fiber mat, the outlet of multi beam glass fibre and 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 the outlet of H shape polyurethane type composite section material pultrusion.

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 big, its tensile strength 450～650MPa; Approaching 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, has only 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 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 through testing result; The 5th, corrosion-resistant, ageing-resistant, the life-span is long; With looking up with eyes wide open compound polyurethane material is good resistant material; To acid, alkali, salt and most of organic substance, seawater and humidity all have resistivity preferably, and action of microorganisms is also had 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, dimensional stability is good, and 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, promptly 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 the good insulation performance material; It is not influenced by electromagnetic wave, does not reflect radio waves, and microwave property is good thoroughly; Can bear HV and do not damage, so the compound polyurethane material section bar 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 of processing with it has higher damping frequency; The combining of resin and fiber interface in the compound polyurethane material have shock-absorbing and shock resistance, avoided the structural member early damage that causes of low-resonance in working order; The tenth, fatigue resistance, the fatigue resistance of compound polyurethane material is very high, thereby guarantees Security and reliability that material uses; 11 is that compound polyurethane material has fabulous rigidity and intensity, and physics and mechanical property are seen attached list.Its complete part substitution of Al alloy and steel; The thermal conductivity of compound polyurethane material is 0.219W/mk, and the thermal conductivity of aluminium is 237.00 W/mk, and 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 a heat with galvanized steel with aluminium,, fabulous plasticity is arranged again, therefore can design the structure of section bar die cavity as requested, process the section bar of different shape because compound polyurethane material has good rigidity and intensity.

Description of drawings

Fig. 1 is the skeletal structure schematic representation of the compound H shape of polyurethane section bar.

Fig. 2 is the structural representation of the compound H shape of polyurethane section bar.

Fig. 3 is the block diagram of the compound H shape of polyurethane section bar production system.

Embodiment

Embodiment 1: with reference to attaching Fig. 1 and 2.The compound H shape of a kind of polyurethane section bar constitutes H shape section bar skeleton 1 by densely covered layer of multi beam glass fibre and glass fiber mat, and polyurethane resin 2 is compound and formation polyurethane H shape section bar with the interior outside of H shape section bar skeleton.That is to say; The moulding skeleton 1 of H shape section bar is made up of densely covered layer of multi beam glass fibre and glass fiber mat; Polyurethane resin 2 and multi beam glass fibre gather layer and glass fiber mat every glass fibre face in constituting compound fully and be compounded with bonding each other between the glass fibre of polyurethane resin 2, solidify and constitute required H shape section bar, the outside is meant the gather face of layer and glass fiber mat of multi beam glass fibre in the polyurethane resin section bar in the promptly said H shape section bar skeleton.Glass fibre in the said H shape section bar 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 said polyurethane section bar.

Embodiment 2: with reference to accompanying drawing 3.On embodiment 1 basis; The formation system of the compound H shape of polyurethane section bar; Be made up of H shape section bar polyurethane resin injection mold 3, cooling die 5 and heat setting mould 6, H shape section bar polyurethane resin injection mold 3 has two imports, and 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 H shape section bar polyurethane resin injection mold gets into the multi beam glass fibre, outlet is communicated with cooling die 5 imports, and the outlet of cooling die is communicated with 6 imports of heat setting mould, and the outlet of heat setting mould is pulled out mouth for the compound polyurethane material section bar.Said heat setting mould constitute by 2 ~ 3 heating-up zone and temperature from low to high, the temperature setting range is: 90 ° of C ~ 250 ° C.Said cooling die is the water-cooled cooling die, and the temperature of its cooling water is 0 ° of C ~ 25 ° C.The production beginning initial stage, note adjusting and observe the flow that is expelled to the polyurethane resin in the injection box, glass can be soaked into fully, notice that polyurethane resin does not overflow the injection box; Observe the situation that goods solidify, note the temperature of adjustment hot-die, and the speed of tractor, polyurethane compound H shape product 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 formation system through the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1; Can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar 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 formation system through the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1; Can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar 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 formation system through the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1; Can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar 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 formation system through the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1; Can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar 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 formation system through the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1; Can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar, 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 is through the formation system of the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1; Can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar again, its physical mechanical and mechanical property are better relatively.

Embodiment 1-7: on embodiment 1 basis; On the basis of embodiment 1 and 2; Adopt 10% polyurethane resin and 90% glass formation system through the compound H shape of polyurethane section bar; Both can pultrusion become the densely covered H of formation of glass fibre shape section bar skeleton 1, and can polyurethane resin and the densely covered H of formation of glass fibre shape section bar skeleton 1 be constituted polyurethane H shape section bar again, its physical mechanical and mechanical property meet design requirement.

The physical mechanical and the mechanical property of the polyurethane profile shapes of being produced according to the above ratio; Be difference to some extent, its corresponding cost also is different, and the physical mechanical and the mechanical property of compound polyurethane material be best; Simultaneously both economical again; Polyurethane resin accounts for 20%, and glass accounted for 80% o'clock, the polyurethane H shape section bar of institute's pultrusion.

Polyurethane resin among this paper is called for short polyurethane.

Above-mentioned glass is meant glass fibre or glass fibre and glass fiber mat, or graphite fiber, or spins the synthetic fibre fiber, or reinforcing fiber such as polyster fibre, or metallicity strengthens silk; Above-mentioned glass felt is meant the glass fiber mat fiberglass gridding cloth, or glass fiber cloth or fabrics such as woven dacron or aramid fiber cloth.

What need understand is: though the foregoing description is to the mentality of designing of the 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 utility model.

Claims (3)

1. the compound H shape of a polyurethane section bar is characterized in that: constitute H shape section bar skeleton by densely covered layer of multi beam glass fibre and glass fiber mat, the compound and formation polyurethane H shape section bar in outside in polyurethane resin and the H shape section bar skeleton; The densely covered layer of glass fibre in the said H shape section bar skeleton coats a glass fiber mat, or is equipped with the densely covered layer of glass fibre between glass fiber mat, or densely covered layer of glass fibre and glass fiber mat stack formation.

2. the compound H shape of polyurethane according to claim 1 section bar is characterized in that: the outside is meant the gather face of layer and glass fiber mat of multi beam glass fibre in the polyurethane resin section bar in the said H shape section bar skeleton.

3. the compound H shape of polyurethane as claimed in claim 1 product moulding system is characterized in that; Constitute by H shape section bar polyurethane resin injection mold, cooling die and heat setting mould; H shape section bar polyurethane resin injection mold has two imports; The one, for the polyurethane material feeding mouth and be positioned at H shape section bar polyurethane resin injection mold top; One is the glass fiber bundle import; The import of angle bar section bar polyurethane resin injection mold gets into the densely covered layer of multi beam glass fibre and glass fiber mat, outlet are communicated with the cooling die import, and the outlet of cooling die is communicated with the import of heat setting mould, and the outlet of heat setting mould is the outlet of H shape polyurethane type composite section material pultrusion.

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