[China Aluminum Network] aluminum alloy door and window frame cracks with the wall joint; push and pull or open and close the doors and windows, the frame fan jitter; when the wind pressure or push and pull by hand, the window frame deformation, shaking, giving a sense of insecurity . (3) When installing the combined doors and windows, pay attention to reasonably setting the middle and middle gears to ensure the overall rigidity of the splice bar and doors and windows, and the specification spacing of the connectors meets the requirements and should be tightly connected.
Source: China Glass Network,
Aluminum alloy doors and windows installation specification
If there is a blocking phenomenon when the doors and windows are opened or closed, the switch needs a lot of effort. When the frame fan has a small lap width and uneven peripheral gaps, it is generally caused by the following factors:
(1) The window frame or fan is deformed, and the sealing strip looses and falls off.
(2) Damage to hardware accessories.
(3) The installation quality is poor, exceeding the allowable deviation, and it has not been adjusted in time.
Prevention:
(1) The installation of windows and doors must be in accordance with the installation procedure. Check and adjust the installation quality of each procedure at any time.
(2) The window frame and the window hole must have a center line. When the window frame is installed in the hole, the center line should be aligned. The frame corner should be temporarily fixed. Carefully adjust the vertical, horizontal and vertical angles of the window frame. The error should be within the allowable deviation. .
(3) The deviation of the diagonal line and flatness shall be checked before the door and window fan enters the frame. The lap width and peripheral gap of the frame fan shall be checked with a steel ruler and a feeler gauge after the frame, until it meets the requirements.
(4) Correctly install hardware parts and find that damage should be promptly replaced.
(5) Do a good job of product protection and normal use and maintenance to prevent external impact, not hanging heavy objects, resulting in deformation of doors and windows. When using, it should be lightly opened to prolong its service life.
The aluminum alloy door and window frame cracks at the junction with the wall; when the door is pushed or opened and closed, the frame fan shakes; when the air pressure is applied or pushed by hand, the window frame is deformed and shaken, giving a sense of insecurity.
The causes of these quality problems are:
(1) improper selection of doors and windows profiles, small size, thin profile thickness.
(2) Improper connection and fixing methods between the window frame and the wall.
(3) The combination of doors and windows when the structure is irrational, the connection is not strong, deformation after stress.
To solve these problems, the following preventive measures should be taken:
(1) Aluminum alloy doors and windows should be based on the size of doors and windows, installation height, choose the right profile. The profile of aluminum alloy profiles used in residential projects is not less than 55 series in the form of flat windows, not less than 75 series in sliding windows, and not less than 75 series in flat windows in inner balconies. The wall thickness of the aluminum alloy window profile is not less than 1.4mm, and the profile wall thickness of the door is not less than 2mm.
(2) When the door and window frame are installed, the connection piece and the wall should be used for reliable connection. The distance between the connector and the corner of the frame shall not be greater than 180mm, and the spacing between the connectors shall not be greater than 50Omm. The connection piece shall be made of thin steel plate with a thickness of not less than 1.5mm and be treated with corrosion protection. The connection method is generally to use expansion bolts, injection needles or open and iron feet embedded in the wall, shall not use the circle, the needle will be directly nailed to the wall frame nail fixed.
(3) When installing the combined doors and windows, pay attention to reasonably setting the middle and middle gears to ensure the overall rigidity of the splice bar and doors and windows, and the specification spacing of the connectors meets the requirements and should be tightly connected.
In daily use, sometimes found in the aluminum alloy door and window frame around the wall with the junction of the leakage of water, especially in the lower corner of the window is more common; followed by the joint window of the joint water seepage.
There are roughly two reasons for water seepage:
(1) Cracks are produced at the junction between the door and window frame and the wall body, and no sealant is used to fill and seal the installation. Rainwater seeps into the room from the crack.
(2) When assembling doors and windows, there is no sleeve connection or lap joint method, and no sealant is used.
In order to prevent water seepage in the doors and windows, appropriate measures should be taken during construction:
(1) Because the coefficient of thermal expansion of the aluminum alloy profile and the wall material is different, under the influence of temperature, the capillary cracks are likely to occur at the junction between the frame body and the wall body. In order to prevent water seepage at the cracks, the aluminum alloy door and window frame should be elastically connected with the wall body. The outer side of the frame should be embedded with wooden strips, leaving 5mm×8mm slots to prevent direct contact of the cement mortar with the frame. During the construction, the dust, such as floating ash and mortar particles, should be removed from the joint groove, and then the sealant must be closed around the inside and outside of the box to connect with the wall body. The sealant should be closed, and the glue should be continuous. Do not omit, and the bond should be firm. .
(2) When the composite door and window rods are to be spliced, they shall be inserted or overlapped. The lap length shall not be less than 10mm, and then sealed with a sealant. It is forbidden to use a combination of plane and plane. At the same time, the exposed connecting screws should also be sealed with a sealant to prevent water seepage.
China's 2010 development plan puts forward new standards for building energy conservation and requires the implementation of a 50% target for building energy efficiency. In buildings, doors, windows, walls, roofs and floors are the four major parts of building energy consumption. Doors and windows are ranked first, which accounts for about 50%. Therefore, the development of new structural doors and windows is first adapted to the requirements of building energy conservation. Broken aluminum doors and windows basically meet the needs of projects under construction, thermal insulation, heat insulation, sound insulation, and anti-condensation, energy saving about 50%, is a green product.
A. Wind pressure and structural deformation performance of broken aluminum doors and windows
The reason why the broken aluminum alloy doors and windows are widely promoted is mainly due to their inherent ease of processing and high strength. This bridge product will not affect its performance due to the use of new technology, and it still retains the ease of processing and wind pressure resistance and deformation resistance of the aluminum alloy itself, so that it does not require special maintenance. At the same time, in order to meet the requirements of buildings at all levels, various processes such as fluorocarbon spraying, electrostatic spraying, and anodizing treatment provide products with colorful colors and strong decorative effects.
II. Thermal Insulation and Sound Insulation of Aluminum Alloy Doors and Windows in Broken Bridge Insulation
Broken Bridge Insulation Aluminum alloy doors and windows are made of PU resin which is infused with a thermal insulation king in a specially designed aluminum alloy cavity. The aluminum wall is then separated to form a broken bridge. Stopped heat conduction. And with the 5+12A+5 hollow glass, the K value of the thermal conductivity is reduced from 5.93W/m2K to 2.94W/m2K of the ordinary aluminum doors and windows. The heating of the winter room and the summer air-conditioning cooling energy saving more than 40%. When the temperature difference in the cold winter is 500C, the doors and windows will not produce condensation, which solves the problem of the pollution of interior decoration caused by ordinary aluminum alloy doors and windows. At the same time, the sound insulation performance of doors and windows is maintained at 30-40dB, making people have a quiet and warm space in downtown. EAH heat preservation doors and windows aluminum alloy doors and windows series products have adopted the principle of combining equal pressure and four seals, making its airtightness reach the national standard, and the watertightness meets the national standard.
III. Application of Broken Bridge Insulation Aluminum Doors and Windows
EAH aluminum alloy doors and windows after the advent of insulation, with its excellent performance of the majority of users of all ages, and achieved good economic and social benefits.
According to user feedback information, EAH series aluminum alloy doors and windows are a real energy-saving and environmentally friendly product. The reason why EAH series insulation aluminum alloy doors and windows get the attention and support from all walks of life is because the product itself has great social benefits. Through theoretical calculations, energy saving of EAH aluminum alloy doors and windows has reached about 50%, and a common residential room can save 4.5 tons of coal and 460 kWh of electricity every year. The heating and cooling costs saved during use can compensate for the higher portion of the initial installation fee in a short period of time, which can be described as a lifetime investment benefit.
The use of EAH insulation doors and windows has no aging problems and no gas pollution. After the building has reached the end of its life cycle, doors and windows can be recycled and will not cause environmental pollution for the next generation. Therefore, when the product was selected as a name, we resolutely determined that it was a "green" product.
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