CN103244030B - Steel heat insulation fireproof soundproof door and preparation method thereof - Google Patents
Steel heat insulation fireproof soundproof door and preparation method thereof Download PDFInfo
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Abstract
The invention provides a kind of steel heat insulation fireproof soundproof door, comprise doorframe and door leaf, wherein two door leafs are docked and are flexibly connected with doorframe by hinge for fireproof, the outer panel of door leaf is corrosion resistant plate, the inside of door leaf is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, and this lamination layer structure is specially fire protection flame retarding deadening felt and is folded between two PLASTIC LAMINATED; Frame fireproofing glue strip and fan fireproofing glue strip is provided with the parallel bonding surface place of door skin at doorframe panel; At doorframe panel and frame fireproofing glue strip, fan on position that fireproofing glue strip contacts, doorframe panel is stretched and has convex I and convex II, and the high spot of convex I and convex II withstands on frame fireproofing glue strip and fan fireproofing glue strip.The invention, except the fireproof performance with labeled door, also add sound insulation function, and its fireproof performance and sound insulation property obviously will be better than the fire-proof sound insulation door of other structures of the same trade, have environmental protection, explosion-proof, weather-proof resistance to feature of waiting so long in addition.
Description
Technical field
The invention relates to a kind of fire-proof sound insulation door, has fire prevention, sound insulation, the function such as heat insulation.
Background technology
The existing labeled door in market or soundproof door performance single, or only have fireproof performance, sound insulation value is bad, or only has sound insulation value, and fireproof performance is bad.And the performance rate of current soundproof door is on the market generally secondary, soundproof effect is not very desirable.
Innovation and creation content
The object of the invention is to provide a kind of steel heat insulation fireproof soundproof door, fireproof performance and sound insulation value is moistened and is integrated, have the dual-use function of labeled door and soundproof door.
The technical scheme of the invention: steel heat insulation fireproof soundproof door, comprise doorframe and door leaf, wherein two door leafs are docked and are flexibly connected with doorframe by hinge for fireproof, the outer panel of door leaf is corrosion resistant plate, the inside of door leaf and doorframe is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, and this lamination layer structure is specially fire protection flame retarding deadening felt and is folded between two PLASTIC LAMINATED; Frame fireproofing glue strip and fan fireproofing glue strip is provided with the parallel bonding surface place of door skin at doorframe panel; At doorframe panel and frame fireproofing glue strip, fan on position that fireproofing glue strip contacts, doorframe panel is stretched and has convex I and convex II, and the high spot of convex I and convex II withstands on frame fireproofing glue strip and fan fireproofing glue strip, has better seal.
Door skin adopts the corrosion resistant plate of phosphorus content 1.0 ~ 2.0%, and thickness is 0.8 ~ 1.2mm, and coefficient of thermal conductivity is 27 ~ 32W/m DEG C; Doorframe panel adopts the corrosion resistant plate of phosphorus content 1.0 ~ 2.0%, and thickness is 1.3 ~ 2.0mm, and coefficient of thermal conductivity is 27 ~ 32W/m DEG C.
The thickness of PLASTIC LAMINATED I is 30 ~ 35mm, and density is 680 ~ 710Kg/m3, its by 70% ~ 80% expanded vermiculite, the perlite of 2% ~ 5%, the polymerization Silica hydrogel of 19% ~ 25% and 0.5% ~ 2% curing compound form; The thickness of PLASTIC LAMINATED II is 10 ~ 15mm, and density is 330 ~ 350Kg/m
3, its by 25% ~ 35% expanded vermiculite, the perlite of 40% ~ 50%, the polymerization Silica hydrogel of 19% ~ 25% and 0.5% ~ 2% curing compound form.
Polymerization Silica hydrogel is made up of 50% ~ 55%MgSiO3,6% ~ 10%NaSiO3,15% ~ 25%Al2O3,10% ~ 15% mineral fibers and surplus SiO2.
The thickness of fire protection flame retarding deadening felt is 3 ~ 8mm.
Door leaf is provided with door closer, and the connecting rod of door closer is connected with doorframe.
Door leaf is also provided with Fire-proof lock, Syn-position device and door fork.
Another object of the present invention is to provide a kind of preparation method of steel heat insulation fireproof soundproof door, can improve the seal of a body, intensity and fire-proof sound insulation effect, comprise following concrete steps:
(1) making of door skin: first adopt numerical control to open the smooth panel of flat machine, then adopt CNC shearing machine to carry out shear, and then adopt numerical control hydraulic punch press to complete stamping-out and the stretching of panel, finally adopt numerical control bender counter plate to carry out bending process;
(2) making of doorframe panel: adopt doorframe automatic moulding production line;
(3) pressing of PLASTIC LAMINATED: adopt 150 tons of pressing machines to carry out pressing to two PLASTIC LAMINATED respectively, pressing 1-2 hour, takes out after sizing and puts into 45-55 DEG C of moist closet and be cured, hardening time at 45-50 hour, then through the air-dry 6.5-7.5 days of natural wind;
(4) pressing of door skin and doorframe panel and lamination layer structure: adopt 200 tons of pressing machines to carry out hot pressing 40-50 minute at 60-70 DEG C of temperature, then through the air-dry 23-25 hour of natural wind;
(5) spray;
(6) assemble: adopt pneumatic electric drill to assemble:
(7) door closer, Fire-proof lock, Syn-position device and door fork is installed.
The beneficial effect of the invention: the outer panel due to door leaf is corrosion resistant plate, the inside of door leaf is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, this lamination layer structure is specially fire protection flame retarding deadening felt and is folded between two PLASTIC LAMINATED, and be provided with frame fireproofing glue strip and fan fireproofing glue strip at doorframe panel with the parallel bonding surface place of door skin, make the invention except the fireproof performance with labeled door, also add sound insulation function, fireproof performance reaches category-A first class, sound insulation property grade reaches 5 grades, therefore its fireproof performance and sound insulation property obviously will be better than the fire-proof sound insulation door of other structures of the same trade, due at doorframe panel and frame fireproofing glue strip, fan on position that fireproofing glue strip contacts, doorframe panel is stretched and has convex I and convex II, the high spot of convex I and convex II withstands on frame fireproofing glue strip and fan fireproofing glue strip, space between door leaf and doorframe is filled completely, therefore there is good soundproof effect, the invention is by adopting the PLASTIC LAMINATED of high-quality, and this PLASTIC LAMINATED coordinates fire protection flame retarding deadening felt to use to have good fire prevention, sound insulation, heat insulation, environmental protection, explosion-proof, weather-proof resistance to feature of waiting so long, owing to being provided with door closer on door leaf, door can be made to close voluntarily, effectively to limit spreading and the ventilation in mansion of fire, owing to being provided with Fire-proof lock on door leaf, can be used for controlling the stream of people, stoping and leave and prevent stealing without authorization.
Owing to adopting numerical control to drive flat machine, making the planeness of panel better, avoiding door leaf when pressing, phenomenon of coming unglued because there is stress; Owing to adopting CNC shearing machine to make equipment more stable, cross section is neat, light alignment device, and panel diagonal error is less than 0.5mm; Employing numerical control hydraulic punch press is disposable completes integral panels stamping-out, stretching, and data are more accurate, stable; Making due to doorframe adopts doorframe automatic moulding production line, can increase doorframe intensity, planeness, and by concave-concave tongue structure, makes doorframe door leaf have better combination, improves seal, improves fire prevention, soundproof effect; Because the pressing adopting labeled door specialty pressing machine to carry out door skin, doorframe panel and lamination layer structure can ensure that door-plate thickness error is less than 0.2mm, and polymerization Silica hydrogel is permeated fully, solidification, improves door-plate intensity, planeness; Because lamination layer structure first adopts 150 tons of pressing machines to carry out hot pressing 45-50 hour before filling at 70-90 DEG C of temperature, then through the air-dry 6.5-7.5 days of natural wind, its intensity, refractoriness can well be ensured like this.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention.
Fig. 2 is the lateral view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is the close-up schematic view of Fig. 3.
Detailed description of the invention
embodiment one
As shown in Figures 1 to 4, steel heat insulation fireproof soundproof door, comprise doorframe and door leaf, wherein two door leafs are docked and are flexibly connected with doorframe by hinge for fireproof 4, the outer panel 1 of door leaf is corrosion resistant plate, the inside of door leaf and doorframe is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, and this lamination layer structure is specially fire protection flame retarding deadening felt 8 and is folded between two PLASTIC LAMINATED 9,10; Frame fireproofing glue strip 11 and fan fireproofing glue strip 12 is provided with the parallel bonding surface place of door skin 1 at doorframe panel 2; At doorframe panel 2 and frame fireproofing glue strip 11, fan on position that fireproofing glue strip 12 contacts, doorframe panel 2 is stretched and has convex I 13 and convex II 14, and the high spot of convex I 13 and convex II 14 withstands on frame fireproofing glue strip 11 and fan fireproofing glue strip 12.
Door leaf is provided with door closer 5, and the connecting rod of door closer 5 is connected with doorframe.
Door leaf is also provided with Fire-proof lock 3, Syn-position device 6 and door fork 7.
Door skin 1 adopts the corrosion resistant plate of phosphorus content 1.0%, and thickness is 0.8mm, and coefficient of thermal conductivity is 27W/m DEG C; Doorframe panel 2 adopts the corrosion resistant plate of phosphorus content 1.0%, and thickness is 1.3mm, and coefficient of thermal conductivity is 27W/m DEG C.
The thickness of PLASTIC LAMINATED 10 is 30mm, and density is 680Kg/m3, its by 70% expanded vermiculite, the perlite of 5%, the polymerization Silica hydrogel of 24% and 1% curing compound form; The thickness of PLASTIC LAMINATED 9 is 10mm, and density is 330Kg/m
3, its by 35% expanded vermiculite, the perlite of 40%, the polymerization Silica hydrogel of 24.5% and 0.5% curing compound form.
Polymerization Silica hydrogel is made up of 50%MgSiO3,6%NaSiO3,15%Al2O3,10% mineral fibers and surplus SiO2.
The thickness of fire protection flame retarding deadening felt 8 is 8mm.
The preparation method of above-mentioned steel heat insulation fireproof soundproof door, comprises following concrete steps:
(1) making of door skin: first adopt numerical control to open the smooth panel of flat machine, then adopt CNC shearing machine to carry out shear, and then adopt numerical control hydraulic punch press to complete stamping-out and the stretching of panel, finally adopt numerical control bender counter plate to carry out bending process;
(2) making of doorframe panel: adopt doorframe automatic moulding production line;
(3) pressing of PLASTIC LAMINATED: adopt 150 tons of pressing machines to carry out pressing to two PLASTIC LAMINATED 9,10 respectively, pressing 1 hour, takes out after sizing and puts into 45 moist closets and be cured, hardening time at 45 hours, then through natural wind air-dry 6.5 days;
(4) pressing of door skin and doorframe panel and lamination layer structure: adopt 200 tons of pressing machines to carry out hot pressing 40 minutes at 60 DEG C of temperature, then through natural wind air-dry 23 hours;
(5) spray;
(6) assemble: adopt pneumatic electric drill to assemble:
(7) door closer 5, Fire-proof lock 3, Syn-position device 6 and door fork 7 is installed.
This embodiment is 91m at sound source room's volume
2, receiving chamber volume is 91m
3, temperature is 20 DEG C, and humidity is in the test environment of 65%, and the soundproof effect recorded is as shown in table 1.
This embodiment is burnt through 1.5h and is detected examination, meets the condition of GB/T7633 to fire integrity and fire insulation.Wherein fire insulation: back of the body fan average temperature rising is 125 DEG C, does not exceed initial temperature 140 DEG C; Back of the body fan maximum temperaturerise is 169 DEG C, does not exceed initial temperature 180 DEG C; Doorframe maximum temperaturerise is 329 DEG C, does not exceed initial temperature 360 DEG C.Fire integrity: do not occur obvious flame and dense smoke.In sum, this embodiment meets A1.50(first class) fire resistance period requirement, all the other all technicals are all qualified, and qualified by GB12955-2008 " labeled door " synthetic determination is category-A first class labeled door.
embodiment two
As shown in Figures 1 to 4, steel heat insulation fireproof soundproof door, comprise doorframe and door leaf, wherein two door leafs are docked and are flexibly connected with doorframe by hinge for fireproof 4, the outer panel 1 of door leaf is corrosion resistant plate, the inside of door leaf and doorframe is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, and this lamination layer structure is specially fire protection flame retarding deadening felt 8 and is folded between two PLASTIC LAMINATED 9,10; Frame fireproofing glue strip 11 and fan fireproofing glue strip 12 is provided with the parallel bonding surface place of door skin 1 at doorframe panel 2; At doorframe panel 2 and frame fireproofing glue strip 11, fan on position that fireproofing glue strip 12 contacts, doorframe panel 2 is stretched and has convex I 13 and convex II 14, and the high spot of convex I 13 and convex II 14 withstands on frame fireproofing glue strip 11 and fan fireproofing glue strip 12.
Door leaf is provided with door closer 5, and the connecting rod of door closer 5 is connected with doorframe.
Door leaf is also provided with Fire-proof lock 3, Syn-position device 6 and door fork 7.
Door skin 1 adopts the corrosion resistant plate of phosphorus content 1.5%, and thickness is 0.8mm, and coefficient of thermal conductivity is 29W/m DEG C; Doorframe panel 2 adopts the corrosion resistant plate of phosphorus content 1.5%, and thickness is 1.5mm, and coefficient of thermal conductivity is 29W/m DEG C.
The thickness of PLASTIC LAMINATED 10 is 32mm, and density is 693Kg/m3, its by 75% expanded vermiculite, the perlite of 3%, the polymerization Silica hydrogel of 21% and 1% curing compound form; The thickness of PLASTIC LAMINATED 9 is 13mm, and density is 343Kg/m
3, its by 30% expanded vermiculite, the perlite of 46%, the polymerization Silica hydrogel of 23% and 1% curing compound form.
Polymerization Silica hydrogel is made up of 52%MgSiO3,8%NaSiO3,20%Al2O3,12% mineral fibers and surplus SiO2.The thickness of fire protection flame retarding deadening felt 8 is 3.4mm.
The preparation method of above-mentioned steel heat insulation fireproof soundproof door, comprises following concrete steps:
(1) making of door skin: first adopt numerical control to open the smooth panel of flat machine, then adopt CNC shearing machine to carry out shear, and then adopt numerical control hydraulic punch press to complete stamping-out and the stretching of panel, finally adopt numerical control bender counter plate to carry out bending process;
(2) making of doorframe panel: adopt doorframe automatic moulding production line;
(3) pressing of PLASTIC LAMINATED: adopt 150 tons of pressing machines to carry out pressing to two PLASTIC LAMINATED 9,10 respectively, pressing 1.5 hours, takes out after sizing and puts into 50 DEG C of moist closets and be cured, hardening time at 48 hours, then through natural wind air-dry 7 days;
(4) pressing of door skin and doorframe panel and lamination layer structure: adopt 200 tons of pressing machines to carry out hot pressing 45 minutes at 65 DEG C of temperature, then through natural wind air-dry 24 hours;
(5) spray;
(6) assemble: adopt pneumatic electric drill to assemble:
(7) door closer 5, Fire-proof lock 3, Syn-position device 6 and door fork 7 is installed.
This embodiment is 91m at sound source room's volume
2, receiving chamber volume is 91m
3, temperature is 20 DEG C, and humidity is in the test environment of 65%, and the soundproof effect recorded is as shown in table 1.
This embodiment is burnt through 1.5h and is detected examination, meets the condition of GB/T7633 to fire integrity and fire insulation.Wherein fire insulation: back of the body fan average temperature rising is 128 DEG C, does not exceed initial temperature 140 DEG C; Back of the body fan maximum temperaturerise is 167 DEG C, does not exceed initial temperature 180 DEG C; Doorframe maximum temperaturerise is 315 DEG C, does not exceed initial temperature 360 DEG C.Fire integrity: do not occur obvious flame and dense smoke.In sum, this embodiment meets A1.50(first class) fire resistance period requirement, all the other all technicals are all qualified, and qualified by GB12955-2008 " labeled door " synthetic determination is category-A first class labeled door.
embodiment three
As shown in Figures 1 to 4, steel heat insulation fireproof soundproof door, comprise doorframe and door leaf, wherein two door leafs are docked and are flexibly connected with doorframe by hinge for fireproof 4, the outer panel 1 of door leaf is corrosion resistant plate, the inside of door leaf and doorframe is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, and this lamination layer structure is specially fire protection flame retarding deadening felt 8 and is folded between two PLASTIC LAMINATED 9,10; Frame fireproofing glue strip 11 and fan fireproofing glue strip 12 is provided with the parallel bonding surface place of door skin 1 at doorframe panel 2; At doorframe panel 2 and frame fireproofing glue strip 11, fan on position that fireproofing glue strip 12 contacts, doorframe panel 2 is stretched and has convex I 13 and convex II 14, and the high spot of convex I 13 and convex II 14 withstands on frame fireproofing glue strip 11 and fan fireproofing glue strip 12.
Door leaf is provided with door closer 5, and the connecting rod of door closer 5 is connected with doorframe.
Door leaf is also provided with Fire-proof lock 3, Syn-position device 6 and door fork 7.
Door skin 1 adopts the corrosion resistant plate of phosphorus content 2.0%, and thickness is 1.2mm, and coefficient of thermal conductivity is 32W/m DEG C; Doorframe panel 2 adopts the corrosion resistant plate of phosphorus content 2.0%, and thickness is 2.0mm, and coefficient of thermal conductivity is 32W/m DEG C.
The thickness of PLASTIC LAMINATED 10 is 35mm, and density is 710Kg/m3, its by 78% expanded vermiculite, the perlite of 2%, the polymerization Silica hydrogel of 19.5% and 0.5% curing compound form; The thickness of PLASTIC LAMINATED 9 is 15mm, and density is 350Kg/m
3, its by 25% expanded vermiculite, the perlite of 50%, the polymerization Silica hydrogel of 23% and 2% curing compound form.
Polymerization Silica hydrogel is made up of 55%MgSiO3,10%NaSiO3,25%Al2O3,15% mineral fibers and surplus SiO2.
The thickness of fire protection flame retarding deadening felt 8 is 4mm.
The preparation method of above-mentioned steel heat insulation fireproof soundproof door, comprises following concrete steps:
(1) making of door skin: first adopt numerical control to open the smooth panel of flat machine, then adopt CNC shearing machine to carry out shear, and then adopt numerical control hydraulic punch press to complete stamping-out and the stretching of panel, finally adopt numerical control bender counter plate to carry out bending process;
(2) making of doorframe panel: adopt doorframe automatic moulding production line;
(3) pressing of PLASTIC LAMINATED: adopt 150 tons of pressing machines to carry out pressing to two PLASTIC LAMINATED 9,10 respectively, pressing 2 hours, takes out after sizing and puts into 55 DEG C of moist closets and be cured, hardening time at 50 hours, then through natural wind air-dry 7.5 days;
(4) pressing of door skin and doorframe panel and lamination layer structure: adopt 200 tons of pressing machines to carry out hot pressing 50 minutes at 70 DEG C of temperature, then through natural wind air-dry 25 hours;
(5) spray;
(6) assemble: adopt pneumatic electric drill to assemble:
(7) door closer 5, Fire-proof lock 3, Syn-position device 6 and door fork 7 is installed.
This embodiment is 91m at sound source room's volume
2, receiving chamber volume is 91m
3, temperature is 20 DEG C, and humidity is in the test environment of 65%, and the soundproof effect recorded is as shown in table 1.
This embodiment is burnt through 1.5h and is detected examination, meets the condition of GB/T7633 to fire integrity and fire insulation.Wherein fire insulation: back of the body fan average temperature rising is 122 DEG C, does not exceed initial temperature 140 DEG C; Back of the body fan maximum temperaturerise is 164 DEG C, does not exceed initial temperature 180 DEG C; Doorframe maximum temperaturerise is 307 DEG C, does not exceed initial temperature 360 DEG C.Fire integrity: do not occur obvious flame and dense smoke.In sum, this embodiment meets A1.50(first class) fire resistance period requirement, all the other all technicals are all qualified, and qualified by GB12955-2008 " labeled door " synthetic determination is category-A first class labeled door.
Table 1
。
Can testing result be drawn by table 1:
Rw（C；Ctr）=41（0；-1）Db
Rw+C=41dB
Rw+Ctr=40dB。
Above-mentioned testing result draws with reference to table 2: the sound insulation property grade of the invention is 5 grades, therefore on the basis with good fireproof performance, there is good sound insulation value equally, and fire prevention, sound insulation value not only meets standard-required, and be better than standard-required, for the life of people provides safety guarantee.
Table 2GB/T8485-2008 " the sound insulation property classification of building doors and windows air borne sound and detection method "
。
Claims (7)
1. steel heat insulation fireproof soundproof door, comprise doorframe and door leaf, wherein two door leafs are docked and are flexibly connected with doorframe by hinge for fireproof (4), it is characterized in that: the outer panel (1) of door leaf is corrosion resistant plate, the inside of door leaf and doorframe is the lamination layer structure of PLASTIC LAMINATED and fire protection flame retarding deadening felt, and this lamination layer structure is specially fire protection flame retarding deadening felt (8) and is folded between two PLASTIC LAMINATED (9,10); Frame fireproofing glue strip (11) and fan fireproofing glue strip (12) is provided with the parallel bonding surface place of the outer panel (1) of door leaf at doorframe panel (2); At doorframe panel (2) and frame fireproofing glue strip (11), fan on position that fireproofing glue strip (12) contacts, doorframe panel (2) is stretched and has convex I (13) and convex II (14), and the high spot of convex I (13) and convex II (14) withstands on frame fireproofing glue strip (11) and fan fireproofing glue strip (12).
2. steel heat insulation fireproof soundproof door as claimed in claim 1, is characterized in that: the outer panel (1) of door leaf adopts the corrosion resistant plate of phosphorus content 1.0 ~ 2.0%, and thickness is 0.8 ~ 1.2mm, and coefficient of thermal conductivity is 27 ~ 32W/m DEG C; Doorframe panel (2) adopts the corrosion resistant plate of phosphorus content 1.0 ~ 2.0%, and thickness is 1.3 ~ 2.0mm, and coefficient of thermal conductivity is 27 ~ 32W/m DEG C.
3. steel heat insulation fireproof soundproof door as claimed in claim 1, it is characterized in that: the thickness of PLASTIC LAMINATED (10) is 30 ~ 35mm, density is 680 ~ 710Kg/m3, its by 70% ~ 80% expanded vermiculite, the perlite of 2% ~ 5%, the polymerization Silica hydrogel of 19% ~ 25% and 0.5% ~ 2% curing compound form; The thickness of PLASTIC LAMINATED (9) is 10 ~ 15mm, and density is 330 ~ 350Kg/m
3, its by 25% ~ 35% expanded vermiculite, the perlite of 40% ~ 50%, the polymerization Silica hydrogel of 19% ~ 25% and 0.5% ~ 2% curing compound form.
4. steel heat insulation fireproof soundproof door as claimed in claim 3, is characterized in that: polymerization Silica hydrogel is made up of 50% ~ 55%MgSiO3,6% ~ 10%NaSiO3,15% ~ 25%Al2O3,10% ~ 15% mineral fibers and surplus SiO2.
5. steel heat insulation fireproof soundproof door as claimed in claim 1, is characterized in that: the thickness of fire protection flame retarding deadening felt (8) is 3 ~ 8mm.
6. steel heat insulation fireproof soundproof door as claimed in claim 1, it is characterized in that: on door leaf, be provided with door closer (5), the connecting rod of door closer (5) is connected with doorframe.
7. steel heat insulation fireproof soundproof door as claimed in claim 1, is characterized in that: on door leaf, be also provided with Fire-proof lock (3), Syn-position device (6) and door fork (7).
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| CN106285359A (en) * | 2016-09-26 | 2017-01-04 | 洮南市安鑫门业有限责任公司 | A kind of processing method of fireproof and theftproof door |
| CN112570990A (en) * | 2020-11-30 | 2021-03-30 | 江西朝阳机械有限公司 | Manufacturing process of double-opening airtight fireproof door |
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| CN1263200A (en) * | 1999-02-10 | 2000-08-16 | 超宇有限公司 | Production method of safety fire-resisting door |
| CN201495952U (en) * | 2009-06-30 | 2010-06-02 | 成都普兰斯纳科技有限公司 | Safety door with fire-proof, heat-insulation and sound-proof effects |
| FI8618U1 (en) * | 2009-11-06 | 2010-02-16 | Huurre Insulation Oy | Outdoor |
| CN201943530U (en) * | 2011-02-28 | 2011-08-24 | 上海森林特种钢门有限公司 | Steely anti-theft sound-and-fire proof entrance door |
| CN202810575U (en) * | 2012-07-19 | 2013-03-20 | 营口春港实业有限公司 | Novel soundproof door |
| CN203285293U (en) * | 2013-05-27 | 2013-11-13 | 营口春港实业有限公司 | Steel heat insulation fireproof soundproof door |
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