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[China Aluminum Industry Network] Flat-window windows have relatively good sealing properties, high safety, and a more harmonious style with the overall style of the building. However, because of the high cost, some commercial and residential buildings, office buildings, and high-end buildings were used in some cities. In the application of high-end buildings such as houses and villas, with the improvement of people's living standards, the casement windows have also been widely used in ordinary communities, and they have been used in five cases of flat windows (airtightness, watertightness, wind pressure resistance, sound insulation, partitions). The influence of heat, in addition to profiles and hardware, the role of the sealant can not be underestimated, a set of doors and windows, often due to the neglect of the sealant, causing the doors and windows are not sealed examples abound; on the sealant There are many materials related introductions, and everyone can also refer to the standard JGT/187-2006. With qualified materials, there is no reasonable mouth design, of course, sealing can not be achieved; and different window types have different requirements on the strip. The following comments on the selection of sealant strips in aluminum alloy casement windows.
First, the ordinary flat-window window in the choice of plastic strip mouth opening window (38,50 and other series), more than two layers used inside and outside the sealed box, is relatively simple, use the plastic tape mouth note the following points.
1. If doors and windows are installed by hinges, because the window is closed, the hinge is pressed along the axis to make the axis compressed. The compression of the fully-sealed rubber strip should not be too large, 1 ∽ 2mm is enough to prevent the amount of compression. As a result, it is difficult to close the side of the mounting hinge, and the non-closed type of compression can be 2∽3mm.
2. If the doors and windows are installed by sliding brackets, because the windows are closed in a similar process of parallel compression, the compression of the strips can be larger, not more than 3 mm, provided that the locking is not too laborious.
Second, flat open under the hanging (inside open inward) window in the choice of strip type flat open under the window is a popular window type in the world. The user can use the rotating window to handle the two opening modes of the window, the opening and the hanging, and the closing of the window. In the underhang state, good ventilation can be achieved without occupying the interior space, and the stolen person can also be prevented from entering through the window. Because this type of window incorporates both flat open and underhang operations, the following points should be taken into account when using this window type to select the strip type:
1. The amount of compression of indoor closed fully sealed tape should not be too large, 1∽2mm is enough, and the thickness of the tape is 0.8∽0.9mm. It is easy to use too thick or too large It is difficult to lock and even lock.
2. It is recommended to use non-closed plastic strips for interior tapes, and the compression amount can be 2∽3mm. The premise is that the thickness of the strip is 1∽1.3mm.
3, outdoor plastic strips, such as the frame fan spacing is less than 2.5mm, it is recommended to use non-closed mouth type of plastic strip compression amount of 0.5 ∽ 1mm.
Third, the insulation of the bridge opening window in the plastic strip mouth of the choice of thermal insulation broken bridge principle is to wear insulation in the middle of the aluminum strip, the aluminum will be broken to form a broken bridge. Effectively stop heat conduction. This type of window is made of multiple insulating glass. In addition to the use of double-channel sealing inside and outside the box, in the middle plus an equal pressure strip seal, this type of window can be said that the current sealing effect is better window type. Can be assembled into a flat open under the hung window or ordinary flat open window, this window type inner and outer frame two seal selection of plastic strip mouth type can refer to the flat open lower hung window, but the pressure tape must be selected the following points:
1. Isotropic adhesive strip is the key to the sealing of the composite window with thermal breakage. Because the seal of the window sash has a certain amount of compression, a certain closing force is required when the door and window are closed. If the one side requires the interference fit of the isobaric strip, there will be a window closing effort; therefore, when the door and window are closed, the fit of the isobaric dogma will be slightly deformed to the B part, and the amount of the part B will be oversized. 1∽2mm. And when selecting hardware, the hinge thickness should be consistent with the manufacturer's design.
Failure to do so can easily result in failure of the seal of the isopipe seal or failure of the sash to close.
2. This type of window is due to the large profile cavity and the use of insulating glass. The weight is relatively large. After installation, if the hardware (hinge, slide) is not of high quality, the sash can easily become non-slipping and non-skid. The side of the support sinks, which is often referred to as the drop angle, so the profile factory design window type is suitable when A> 5mm; C <3∽mm, the assembly plant should fully consider the weight of the sash, use the appropriate hardware, to avoid the production of In the corner phenomenon, the window sash is stuck on the top of the isobar, causing the window not to lock.
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