CN105888450A - Thermal insulation aluminum alloy profile with double bridge-cutoff structures - Google Patents
Thermal insulation aluminum alloy profile with double bridge-cutoff structures Download PDFInfo
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- CN105888450A CN105888450A CN201410592495.1A CN201410592495A CN105888450A CN 105888450 A CN105888450 A CN 105888450A CN 201410592495 A CN201410592495 A CN 201410592495A CN 105888450 A CN105888450 A CN 105888450A
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Abstract
The invention discloses a thermal insulation aluminum alloy profile with double bridge-cutoff structures. The thermal insulation aluminum alloy profile is composed of a first aluminum profile, a second aluminum profile and two I-shaped thermal insulation strips. The I-shaped thermal insulation strips are arranged between the first aluminum profile and the second aluminum profile and are parallel to each other, and each I-shaped thermal insulation strip is provided with two glass cloth layers. A protrusion is arranged on the inner side of the first aluminum profile, and two thermal insulation strip clamping grooves are formed in the protrusion. A protrusion is arranged on the inner side of the second aluminum profile, and two thermal insulation strip clamping grooves are formed in the protrusion. The thermal insulation strips are arranged in the thermal insulation strip clamping grooves of the first aluminum profile and the thermal insulation strip clamping grooves of the second aluminum profile. The thermal insulation strips have good mechanical properties and flame retardance, the defect of hollowness in the prior art is overcome as the two thermal insulation strips are arranged in parallel, and the thermal insulation aluminum alloy profile is easy to prepare, low in cost and suitable for industrial production.
Description
Technical field
The present invention relates to aluminium alloy extrusions technical field, particularly relate to a kind of double bar bridge cutoff structure aluminium alloy
Heat insulation section.
Background technology
China's aluminum alloy doors and windows and curtain wall produce, consumption big country, the aluminum alloy doors and windows of completion of each year and curtain
Wall quantity is big, and the consumption of its main composition aluminium alloy extrusions is the biggest.Owing to aluminium alloy heat conductivity is big,
Energy-saving effect is poor, and energy waste is serious, does not meets the requirement of heat-insulating sound-insulating, lightweight.
Along with science and technology and the development of engineering, bridge-cut-off aluminum door and window have lightweight, intensity is high, rigidity
Well, corrosion resistant is nontoxic, fire protecting performance is excellent, daylighting area is big, good decorating effect, length in service life etc.
Feature, is extensively accepted by society.But its shortcoming or heat conductivity is bigger, insulation bar
Can be poor.Arrange between first aluminium section bar of aluminium alloy extrusions, the second aluminium section bar of bridge-cut-off aluminum door and window every
Hot bar obtains bridge cutoff structure heat insulated shape bar of aluminum alloy and compensate for the inherent defect of bridge-cut-off aluminum, Novel broken bridge every
Hot bar bridge-cut-off aluminum door and window is gradually approved by people.
Critical component in bridge cutoff structure heat insulated shape bar of aluminum alloy is at the first aluminium section bar, the second aluminium section bar
Between play the heat insulating strip of interconnection function, it is organic material.Using environment to determine heat insulating strip must be same
Time possess the stability of higher mechanical property and excellence, otherwise during life-time service due to its from
The aging of body easily causes door and window, curtain wall breaking releasing, there is great security-hidden trouble.
It addition, as daily life material, bridge cutoff structure heat insulated shape bar of aluminum alloy must possess fire line
Can, heat insulating strip therein plays decisive action, in prior art few people mention this important but not
The thing of very good solution；Aging is the inevitable process of organic material, and light stimulates, the change of weather
Change, the change of temperature, the change of humidity all can promote the aging of organic material, and then cause material whole
The decline of body performance, greatly reduces heat insulation, soundproof effect and mechanical property.Bridge cutoff structure aluminum closes
Gold heat insulation section is the complex structure body of multiple material, especially by expanding with heat and contract with cold this natural phenomena
Impact, the unmatched thermal coefficient of expansion of each storeroom cause each interstructural microcosmic heterogeneity increasingly stronger,
Macroscopic view gap is increasing, and especially as the organic material of heat insulating strip material, thermal coefficient of expansion is the highest
In metal material, this coupling, accelerates the aging of heat insulating strip.
Meanwhile, in prior art, the connecting portion of heat insulating strip and aluminium be or for inclined-plane or be arc,
All irregular, prepare more bothersome and easily to there is two sides not parallel, contact surface is tight, in order to fit
Being combined in generation and be widely used, bridge cutoff structure heat insulated shape bar of aluminum alloy must be easily worked, each composition portion
Must reach between part closely and preparation cost is low.
Summary of the invention
It is an object of the invention to provide a kind of double bar bridge cutoff structure heat insulated shape bar of aluminum alloy, it combines metal
Processing and macromolecule inorganic composite materials technology, design uniqueness, simple in construction, preparation is convenient, has
Excellent heat insulation performance, mechanical property, fire resistance, and the expansion of heat insulating strip and aluminium section bar
Coefficient tends to close, weakens the aging of organic material.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of double bar bridge cutoff structure aluminum close
Gold heat insulation section, is made up of with I shape heat insulating strip the first aluminium section bar, the second aluminium section bar；Described I-shaped
Type heat insulating strip is arranged between the first aluminium section bar and the second aluminium section bar；Described I shape heat insulating strip has two
Layer glass fabric layer；The width of described layer glass layer of cloth be all described I shape heat insulating strip height 88～
95%；Distance between described layer glass layer of cloth be described I shape heat insulating strip waist width 28～
32%；Described glass fabric layer mass area ratio is 15～20g/m2；Described I shape heat insulating strip is two
Bar, and parallel to each other；Being provided with projection inside described first aluminium, projection is provided with two heat insulating strip cards
Groove；Being provided with projection inside described second aluminium, projection is provided with two heat insulating strip draw-in grooves；Described heat insulation
Bar is arranged in the heat insulating strip draw-in groove of the first aluminium and the heat insulating strip draw-in groove of the second aluminium.
In technique scheme, described heat insulating strip waist width is 8～12mm.
In the present invention, heat insulating strip plays the most heat insulation, sound insulation function, for I-shaped structure, lower limb and
Waist is orthogonal, is all rectangular structure, and waist width is thickness, and the distance between two leg outer sides is i.e.
For height.Two heat insulating strips are set and can ensure that the mechanical property of heat insulated shape bar of aluminum alloy, and two
Heat insulating strip is the same, reduces production difficulty, decreases production defect, it is ensured that produce quality.
In the present invention, the mass area ratio of the glass cloth selected by glass fabric layer is critically important, and this embodies
Space between each glass fibre in glass cloth, organic material of having influence on glass cloth with preparing heat insulating strip
Composite performance between material, is related to the performance of whole aluminium section bar further.Described glass fabric layer and work
The lower limb of font heat insulating strip is the most parallel with the waist of I shape heat insulating strip；The width of glass fabric layer is described
Two lower limbs of the 88～95% of I shape heat insulating strip height, i.e. I shape heat insulating strip are not all and glass cloth
Layer contact, the distance between layer glass layer of cloth is the 28～32% of described I shape heat insulating strip waist width,
The stability of this direct relation heat insulating strip；Preferably two lower limbs of I shape heat insulating strip the most not with glass
Layer of cloth contacts, and the distance of two leg outer sides of glass fabric layer to I shape heat insulating strip is the same, and two-layer
Glass fabric layer, as the distance of the lateral surface of the I shape heat insulating strip waist near apart from oneself, so reduces
The defect of organic/inorganic composite material, it is ensured that the mechanical property of material.
In the present invention, above-mentioned I shape heat insulating strip can be prepared, including following step in the way of using mold pressing
Rapid:
(1) by polyhexamethylene adipamide, polypropylene, bisphenol A epoxide resin monomer, imidazoles, three
Poly cyanamid adds in screw extruder, in 160～200 DEG C, and extruding pelletization, obtain particle；By quality
Ratio, polyhexamethylene adipamide: polypropylene: bisphenol A epoxide resin monomer: imidazoles: tripolycyanamide is
100: 60～65: 18～24: 3～6: 10～15；
(2) above-mentioned particle is inserted in mould, for the first time precompressed；Then open mould, put into one layer
Glass cloth, places the particle of step (1), precompressed for the second time on glass cloth；Then mould is opened,
Put into one layer of glass cloth, glass cloth is placed the particle of step (1), precompressed for the third time；Finally press
Close；Obtain I shape heat insulating strip；
The mass area ratio of described glass cloth is 15～20g/m2。
In technique scheme, the width of described layer glass cloth is all described I shape heat insulating strip height
88～95%；Distance between described layer glass cloth is described I shape heat insulating strip waist width
28～32%.
Preferably in technical scheme, the temperature of precompressed for the first time is 180 DEG C, and the time is 30s, and pressure is
1MPa；The temperature of precompressed for the second time is 180 DEG C, and the time is 50s, and pressure is 1MPa；Third time is pre-
The temperature of pressure is 180 DEG C, and the time is 30s, and pressure is 1MPa；The temperature of pressing is 200 DEG C, time
Between be 80s, pressure is 1.4MPa.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1. present invention firstly provides the aluminum heat insulation type containing the heat insulating strip with glass cloth structure
Material, design uniqueness, simple in construction, preparation is convenient, has the heat insulation performance of excellence, mechanical property
Can, fire resistance, and heat insulating strip tends to close with the coefficient of expansion of aluminium section bar, weakens heat insulating strip
Aging；
2. present invention firstly provides I shape heat insulating strip, tactical rule, on corresponding aluminium section bar
Draw-in groove is the most regular, and tooth punching is convenient, not only avoid the preparation of complicated draw-in groove in prior art, also reduces
Defect between heat insulating strip and draw-in groove, conveniently wears bar, adds the compactness of heat insulating strip and draw-in groove；
3. the heat insulating strip mechanical property that the present invention provides is good, fire-retardant, is two and be arranged in parallel, it is to avoid
The defect of hollow in prior art, preparation is simple, and low cost is suitable to industrialized production.
Accompanying drawing explanation
Fig. 1 is the structural representation of double bar bridge cutoff structure heat insulated shape bar of aluminum alloy in embodiment three；
Fig. 2 is the structural representation of heat insulating strip in embodiment three；
Wherein: 1 be the first aluminium section bar, 2 be heat insulating strip, 3 be the second aluminium section bar, 11 be the first aluminium
The projection of inner side, 12 be heat insulating strip draw-in groove, 31 be projection inside the second aluminium, 32 be heat insulating strip
Draw-in groove, 21 be glass fabric layer, 22 for glass fabric layer.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment one: the preparation of I shape heat insulating strip
During actual production, the raw material preparing heat insulating strip is inserted in mould, precompressed, repave last layer glass
Glass layer of cloth, then adds the raw material preparing heat insulating strip, then precompressed；Repave last layer glass fabric layer, so
Add the raw material preparing heat insulating strip, precompressed for the third time afterwards；Finally open heat insulating strip pressing holotype, system
For obtaining required heat insulating strip.Heat insulation strip structure rule, preparation is simple, and the aluminium of its correspondence
Fluting difficulty relatively prior art declines a lot.
Specifically include following steps:
(1) by polyhexamethylene adipamide, polypropylene, bisphenol A epoxide resin monomer, imidazoles, three
Poly cyanamid adds in screw extruder, in 160～200 DEG C, and extruding pelletization, obtain particle；By quality
Ratio, polyhexamethylene adipamide: polypropylene: bisphenol A epoxide resin monomer: imidazoles: tripolycyanamide is
100∶62∶20∶4∶10；
(2) above-mentioned particle is inserted in mould, for the first time precompressed；Then open mould, put into one layer
Glass cloth, places the particle of step (1), precompressed for the second time on glass cloth；Then mould is opened,
Put into one layer of glass cloth, glass cloth is placed the particle of step (1), precompressed for the third time；Finally press
Close；Obtain I shape heat insulating strip；The mass area ratio of described glass cloth is 15～17g/m2；Two-layer
The width of glass cloth is all 4.5cm；Distance between described layer glass cloth is 3mm.
The temperature of precompressed for the first time is 180 DEG C, and the time is 30s, and pressure is 1MPa；Precompressed for the second time
Temperature be 180 DEG C, the time is 50s, and pressure is 1MPa；The temperature of precompressed for the third time is 180 DEG C,
Time is 30s, and pressure is 1MPa；The temperature of pressing is 200 DEG C, and the time is 80s, and pressure is 1.4MPa.
Embodiment two: the preparation of I shape heat insulating strip
Comprise the following steps:
(1) by polyhexamethylene adipamide, polypropylene, bisphenol A epoxide resin monomer, imidazoles, three
Poly cyanamid adds in screw extruder, in 160～200 DEG C, and extruding pelletization, obtain particle；By quality
Ratio, polyhexamethylene adipamide: polypropylene: bisphenol A epoxide resin monomer: imidazoles: tripolycyanamide is
100∶60∶22∶5∶15；
(2) above-mentioned particle is inserted in mould, for the first time precompressed；Then open mould, put into one layer
Glass cloth, places the particle of step (1), precompressed for the second time on glass cloth；Then mould is opened,
Put into one layer of glass cloth, glass cloth is placed the particle of step (1), precompressed for the third time；Finally press
Close；Obtain I shape heat insulating strip；The mass area ratio of described glass cloth is 18～20g/m2Two-layer
The width of glass cloth is all 4.4cm；Distance between described layer glass cloth is 3.1mm.
The temperature of precompressed for the first time is 180 DEG C, and the time is 30s, and pressure is 1MPa；Precompressed for the second time
Temperature be 180 DEG C, the time is 50s, and pressure is 1MPa；The temperature of precompressed for the third time is 180 DEG C,
Time is 30s, and pressure is 1MPa；The temperature of pressing is 200 DEG C, and the time is 80s, and pressure is 1.4MPa.
Above-mentioned heat insulating strip is thermally shielded sound insulation value, hot strength, oxygen index (OI), coefficient of expansion test,
Two heat insulating strips of each test, the results are shown in Table 1, it can be seen that the heat-insulating sound-insulating that above-mentioned heat insulating strip has had
Performance and mechanical property, fire resistance, the coefficient of expansion.
The performance of table 1 heat insulating strip
Embodiment three: see shown in accompanying drawing 1-2, a kind of double bar bridge cutoff structure heat insulated shape bar of aluminum alloy,
It is made up of with I shape heat insulating strip 2 first aluminium section bar the 1, second aluminium section bar 3；Described I shape is heat insulation
Bar 2 is arranged between the first aluminium section bar 1 and the second aluminium section bar 3；Described I shape heat insulating strip 2 has
Glass fabric layer 21, glass fabric layer 22；The width of described layer glass layer of cloth is all 4.5cm；Described two
Distance between layer glass fabric layer is 3mm；Described glass fabric layer mass area ratio is 15～17g/m2；
Described I shape heat insulating strip is two, and parallel to each other；Protruding 11 it are provided with inside described first aluminium,
Projection is provided with two heat insulating strip draw-in grooves 12；It is provided with protruding 31 inside described second aluminium, projection sets
There are two heat insulating strip draw-in grooves 32；Described heat insulating strip is arranged on heat insulating strip draw-in groove and second aluminum of the first aluminium
In the heat insulating strip draw-in groove of material.
In above-mentioned pair of bar bridge cutoff structure heat insulated shape bar of aluminum alloy, described heat insulating strip waist width is 10mm.
Embodiment four: a kind of double bar bridge cutoff structure heat insulated shape bar of aluminum alloy, by the first aluminium section bar, second
Aluminium section bar is constituted with I shape heat insulating strip；Described I shape heat insulating strip is arranged on the first aluminium section bar and second
Between aluminium section bar；Described I shape heat insulating strip has layer glass layer of cloth；Described layer glass layer of cloth
Width is all 4.4cm；Distance between described layer glass layer of cloth is 3.1mm；Described glass fabric layer
Mass area ratio is 18～20g/m2；Described I shape heat insulating strip is two, and parallel to each other；Institute
Stating and be provided with projection inside the first aluminium, projection is provided with two heat insulating strip draw-in grooves；In described second aluminium
Side is provided with projection, and projection is provided with two heat insulating strip draw-in grooves；Described heat insulating strip is arranged on the first aluminium
In the heat insulating strip draw-in groove of heat insulating strip draw-in groove and the second aluminium.
In above-mentioned pair of bar bridge cutoff structure heat insulated shape bar of aluminum alloy, described heat insulating strip waist width is 11mm.
Heat insulation strip structure rule in the present invention, preparation is simple, and the aluminium fluting difficulty of its correspondence is relatively
Prior art declines a lot.
Claims (5)
1. a double bar bridge cutoff structure heat insulated shape bar of aluminum alloy, it is characterised in that: by the first aluminium section bar,
Second aluminium section bar is constituted with I shape heat insulating strip；Described I shape heat insulating strip is arranged on the first aluminium section bar and
Between two aluminium section bars；Described I shape heat insulating strip has layer glass layer of cloth；Described layer glass layer of cloth
Width is all the 88～95% of described I shape heat insulating strip height；Distance between described layer glass layer of cloth
For described I shape heat insulating strip waist width 28～32%；Described glass fabric layer mass area ratio be 15～
20g/m2；Described I shape heat insulating strip is two, and parallel to each other；It is provided with convex inside described first aluminium
Rising, projection is provided with two heat insulating strip draw-in grooves；Being provided with projection inside described second aluminium, projection is provided with
Two heat insulating strip draw-in grooves；Described heat insulating strip be arranged on the heat insulating strip draw-in groove of the first aluminium and the second aluminium every
In hot clamp bar slot.
The most according to claim 1 pair of bar bridge cutoff structure heat insulated shape bar of aluminum alloy, it is characterised in that:
Described heat insulating strip waist width is 8～12mm.
3. the preparation method of I shape heat insulating strip described in a claim 1, it is characterised in that include
Following steps:
(1) by polyhexamethylene adipamide, polypropylene, bisphenol A epoxide resin monomer, imidazoles, trimerization
Cyanamide adds in screw extruder, in 160～200 DEG C, and extruding pelletization, obtain particle；In mass ratio,
Polyhexamethylene adipamide: polypropylene: bisphenol A epoxide resin monomer: imidazoles: tripolycyanamide is
100: 60～65: 18～24: 3～6: 10～15；
(2) above-mentioned particle is inserted in mould, for the first time precompressed；Then open mould, put into one layer
Glass cloth, places the particle of step (1), precompressed for the second time on glass cloth；Then mould is opened,
Put into one layer of glass cloth, glass cloth is placed the particle of step (1), precompressed for the third time；Finally press
Close；Obtain I shape heat insulating strip；
The mass area ratio of described glass cloth is 15～20g/m2。
The preparation method of I shape heat insulating strip the most according to claim 3, it is characterised in that: described
The width of layer glass cloth is all the 88～95% of described I shape heat insulating strip height；Described layer glass cloth
Between distance is described I shape heat insulating strip waist width 28～32%.
The preparation method of I shape heat insulating strip the most according to claim 3, it is characterised in that: first
The temperature of secondary precompressed is 180 DEG C, and the time is 30s, and pressure is 1MPa；The temperature of precompressed for the second time is
180 DEG C, the time is 50s, and pressure is 1MPa；The temperature of precompressed for the third time is 180 DEG C, and the time is 30s,
Pressure is 1MPa；The temperature of pressing is 200 DEG C, and the time is 80s, and pressure is 1.4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592495.1A CN105888450A (en) | 2014-10-28 | 2014-10-28 | Thermal insulation aluminum alloy profile with double bridge-cutoff structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592495.1A CN105888450A (en) | 2014-10-28 | 2014-10-28 | Thermal insulation aluminum alloy profile with double bridge-cutoff structures |
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| CN105888450A true CN105888450A (en) | 2016-08-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649885A (en) * | 2017-11-06 | 2018-02-02 | 济南格瑞特机械设备有限公司 | Bar all-in-one is worn in a kind of single-column cantilever type numerical control tooth punching |
| CN108672822A (en) * | 2018-05-24 | 2018-10-19 | 广东豪美新材股份有限公司 | A kind of proximate matter tooth punching machine for stringing |
| CN109401193A (en) * | 2018-10-10 | 2019-03-01 | 中牟中楷门窗有限公司 | A kind of preparation method of anti-flaming thermal-insulation broken-bridge aluminum alloy composite door and window material |
| CN112126225A (en) * | 2020-09-24 | 2020-12-25 | 安徽优泰新材料有限公司 | High-temperature-resistant and high-strength nylon heat insulation strip and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107649885A (en) * | 2017-11-06 | 2018-02-02 | 济南格瑞特机械设备有限公司 | Bar all-in-one is worn in a kind of single-column cantilever type numerical control tooth punching |
| CN107649885B (en) * | 2017-11-06 | 2023-12-05 | 济南格瑞特机械设备有限公司 | Single-upright cantilever type numerical control tooth-opening and strip-penetrating integrated machine |
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| CN109401193A (en) * | 2018-10-10 | 2019-03-01 | 中牟中楷门窗有限公司 | A kind of preparation method of anti-flaming thermal-insulation broken-bridge aluminum alloy composite door and window material |
| CN112126225A (en) * | 2020-09-24 | 2020-12-25 | 安徽优泰新材料有限公司 | High-temperature-resistant and high-strength nylon heat insulation strip and manufacturing method thereof |
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