The aluminum door and window of the broken bridge is designed with a structural drainage system by the principle of pressure balance. The sliding design is stepped with a slope, and the drainage port is provided. The drainage is smooth and the watertightness is good. At the same time, the aluminum frame and window frame of the broken bridge adopts hollow design, strong resistance to wind pressure deformation and good anti-vibration effect. It can be used in high-rise buildings and residential buildings. It can be designed with large-area window type and large lighting area. The airtightness of this window is better than any aluminum and plastic window, which can ensure the indoor window sill and floor of the area with large wind and sand without dust.
In addition to outstanding wind pressure resistance and waterproof features, the broken aluminum doors and windows also have the characteristics of strong sealing, good sound insulation and so on. Aluminum alloy doors and windows are now widely used in construction. Although the previous aluminum alloy windows have avoided some shortcomings of steel windows, the profiles themselves are made of metal materials, which have fast heat and cold conduction, and cannot solve the problems of sealing and heat preservation. At present, many door and window enterprises have developed aluminum bridges for broken bridge insulation, that is, the use of hard plastics in the middle of aluminum profiles to break the aluminum alloy, so as to achieve the same thermal insulation effect as plastic steel windows, and solve the problem of aluminum profiles. The problem of high thermal coefficient.
Aluminum alloy doors and windows have occupied half of the door and window industry, but many consumers are worried about buying unqualified inferior products when buying aluminum alloy doors and windows, because unqualified aluminum alloy doors and windows will be affected by sunlight, air, rain, etc. , causing deformation of the aluminum profile, and even causing the glass to rupture and fall off. In order to help consumers buy qualified products when they buy, experts list the standards of three inferior aluminum alloys for the majority of consumers:
First, the thickness of the oxide film is thin
The national standard stipulates that the thickness of the oxide film of the building aluminum profile should be not less than 10um (micron). The thickness is not enough, and the surface of the aluminum profile is rust and corrosion. Some aluminum profiles without a name, site, production license and certificate have a thickness of only 2 to 4 um, and some even have no oxide film. According to experts' estimates, for every 1 um reduction in oxide film thickness, the cost per ton of profile can be reduced by more than one hundred yuan.
Second, the chemical composition is unqualified
The aluminum profile with a large amount of miscellaneous aluminum and scrap aluminum can greatly reduce the cost, but it will lead to the unqualified chemical composition of the aluminum profile of the building, which seriously jeopardizes the safety of the construction project.
Third, reduce the profile wall thickness
90 series sliding window type, according to national standards, the minimum wall thickness of aluminum profiles is not less than 1.4mm, but the wall thickness of many products on the market is only 0.6 to 0.7mm. The 46 series grounding door type, the wall thickness of the aluminum profile used by the national standard, the minimum is not less than 1.62mm, and the wall thickness of some products is only 0.97 to 1.18mm.
Inferior aluminum profiles greatly reduce the sealing time, reduce the loss of chemical reagents, and reduce the cost, but the corrosion resistance of the profiles is also greatly reduced.
1.with 3000 square meter factory about 35 workshop workers and 25 office workers.
2.More than 20 sets of advanced machines with more than ten years domestic trade experience and international trade experience.
3.Manufacture and supply good quality automatic doors
4.With ISO 9001 Certification and many others certifications
5. Excellent DC brushless motor , high wear-resistant qualities wheels and reasonable structure design makes it more stable, quiet, longer life
6.Our Service system is perfect
Controller Dimensions : 85×124×600mm
Weight :12 kg
Maximun leaf weight :150 kg
Open range : 70°~115°
Closing speed : 10~43 cm/s
Door hold time :0.5~10 seconds
Main Power :AC 220V~250V,50~60 Hz
Maximum current :1A
Maximun motor power:55W
Wait Power :14W
Fuse :Minimum 3.5 ASlow
Operating Temperature : -30℃ ~+50℃
Swing Door,Exterior Swing Door,Aluminium Out Swing Door,Refrigerated Swing Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffreezerdoor.com