In order to maintain a quiet and comfortable living environment, doors and windows must have good wind pressure, air tightness, water tightness, thermal insulation, sound insulation, safety and durability. Doors and windows are composed of glass, profiles, hardware and sealing tape to form an organic system. Hardware accessories are responsible for the close connection between the door and window frame and the fan. Without doors and windows, doors and windows become lifeless fans, losing their ventilation function. There is a great correlation between the physical properties of the doors and windows of the broken bridge
aluminum alloy system. The thermal insulation performance of doors and windows is not only related to the materials used, but also has a great impact on the thermal insulation performance of doors and windows, and the air tightness performance is closely related to the waterproof performance and sound insulation performance of doors and windows. Therefore, in order to save energy, aluminum alloy doors and windows should save energy. In addition to choosing materials with low heat transfer coefficients such as heat-insulating aluminum alloy profiles and insulating glass, appropriate hardware accessories should also be considered according to the door and window materials. There are many hardware components that affect the sealing performance of doors and windows. According to their impact on the sealing performance of doors and windows, they can be divided into two types: multi-lock hardware and single-lock hardware. The lock points and lock seats of the multi-lock point hardware are distributed around the entire door frame. When the door and window lock point and the lock seat are firmly connected with the hinge (hinge) or sliding support, a strong sealing compression force is generated, which makes the sealing strip elastically deform, thereby providing sufficient sealing performance for the door and window, so that the fan and the frame Form a whole. Therefore, the use of multi-lock hardware can improve the sealing performance of doors and windows. At the same time, in order to ensure that the aluminum alloy doors and windows are synchronized with the deformation of the fan and the frame under the action of wind pressure, it can effectively ensure the reasonable cooperation of the sealing materials, so that the sealing belt can be kept under pressure at any time It has good sealing performance. The sealing performance of single locking point hardware components is much worse than that of single locking point. Since the single locking point can only provide single-point locking at the door and window openings, only three or four locking points can be produced by hinges (closed pages) or sliding, so that the four corners of the door and window sashes are in an unconstrained state. The gap between the points reduces the sealing performance of doors and windows. When aluminum alloy doors and windows are subjected to positive wind pressure or negative wind pressure, the window deforms at the position where there is no locking point, resulting in a gap between the fan racks, causing the hot and cold air to circulate through the gap to form convection. Therefore, the use of a single locking point hardware configuration will seriously reduce the sealing performance of aluminum alloy doors and windows, and make aluminum alloy doors and windows unable to meet the energy-saving requirements. Poor sealing performance of doors and windows is mainly manifested in poor sealing between the ventilator and the fixed frame, which will lead to poor water tightness of doors and windows, and have a great impact on the air sound insulation performance of doors and windows. If poor-quality or unreasonable hardware is used for broken aluminum alloy doors and windows, the air-tightness of aluminum alloy doors and windows will also be affected. If the doors and windows use poor quality locking hardware, when the doors and windows are locked, the locking points cannot be tightly fixed together, and the sealing force cannot be generated, which will result in a decline in the sealing performance of the doors and windows. For the production of energy-saving broken bridge aluminum alloy doors and windows, some people think that as long as the use of high-end insulation profiles, Low-E insulating glass can be made into energy-saving doors and windows. There is a misunderstanding here. The energy-saving effect of the door and window system is through the comprehensive evaluation of its overall performance, that is, the coordination of profiles, glass and hardware. Insulating glass only solves the energy consumption problem of the glass area, and the energy saving problem of window frames and fan-shaped surfaces, which account for about 30% of the door and window area, has always been a controversial and troubled issue. With the different choices of users, the energy-saving effects of doors and windows are completely different. How to configure hardware accessories to make the bridge's thermal insulation profile break work is very important. There are many types and structural forms of broken bridge aluminum alloy doors and windows, and the various functions of the window type depend on the configuration of the hardware. The casement and lower-hung window has the functions of casement and inner (outer) reversal. Sliding and folding doors and windows have both sliding and folding functions. The internal reverse push and pull, movable shutter, etc. all realize their unique specific functions through hardware functions. It can be said that it plays a decisive role in the function of aluminum alloy doors and windows. Hardware fittings with excellent materials are the basic guarantee for high-quality energy-saving windows. Hardware accessories with poor materials are prone to aging and cracking, resulting in inflexible or inflexible opening and closing of aluminum alloy doors and windows, which may threaten life safety. Therefore, when choosing hardware accessories, you must choose products with quality assurance, and don't be greedy for cheap and lose big.
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