Liefan aluminum alloy doors and windows --- in recent years, with the continuous development of the construction industry, the requirements for doors and windows are higher and higher. In order to meet the requirements of the building, hardware accessories technology plays an important role in the design of doors and windows. The system development of doors and windows is closely connected with the selection or development of door and window hardware. More importantly, the wind pressure deformation, water tightness, air tightness, thermal insulation, sound insulation, internal deformation, opening and closing, vertical load, repeated opening and closing of doors and windows are related to the hardware system, which plays a decisive role in the performance of doors and windows.
Hardware is the key part of aluminum alloy doors and windows, mosquito screen window is directly related to the performance and life of aluminum alloy doors and windows. The design and selection of hardware must be able to withstand the self weight and frequent opening of the window sash, and at the same time, it should consider the safety, beauty and corrosion resistance. The structure of hardware shall be suitable for the structure and opening mode of aluminum alloy doors and windows. Aluminum alloy is widely used in sliding window and flat window, a few use lower hanging window, and various window types of middle suspension window are realized by using different forms of hardware.
There are many kinds of hardware for aluminum alloy doors and windows. The hardware used for aluminum alloy push-pull windows and open doors and windows are different. For example, the common forms in the market at present are as follows: outer side opening hardware, inner side opening hardware, inner opening and inner reversing hardware, middle hanging window hardware (vertical suspension rotation), middle suspension window hardware (horizontal rotation), external hanging window hardware, push-pull hardware, outward horizontal push hardware, inward tilt smooth sideshift hardware, electric hardware, intelligent electric hardware, folding and opening hardware, lifting hardware, ventilation and ventilation device, etc.
Compared with casement windows, the hardware of aluminum alloy push hardware fittings sliding doors and windows, in addition to the sealing sealant strip and wool top, the hardware also needs pulley. Crescent lock (transmission) wind block. The hardware accessories of Livan aluminum alloy doors and windows are also diverse, including German brand siglia, lock cylinder, handle, etc., as well as imported and domestic options.
The pulley of aluminum alloy push hardware fittings is installed under the door and window sash. Generally, at least two or more pulleys are required for single door and window (depending on the bearing weight of single leaf). The pulley is the push-pull that makes the door and window go back and forth smoothly, and it is the hardware that can not be ignored in the sliding door and window. The high-quality pulley can promote the push-pull function of the door and window to a great extent. The high-quality pulley not only pushes and pulls smoothly and freely, but also has no sound. It feels light when pushing and pulling, but vice versa for the inferior pulley. After years of growth and development, aluminum alloy doors and windows are growing stronger and sound. As an indispensable part of aluminum alloy sliding doors and windows, pulley is also a growing process. The outer wheel and bearing chamber constitute the main parts of the pulley. The materials of the outer wheel include nylon wheel, steel wheel, copper wheel, and alloy wheel (imitation of stainless steel). Since all the above pulleys are made of metal, the running in aluminum alloy slide rail contacts, there are noises and noises when pushing and pulling. In order to make the doors and windows push and pull without noise, the present nylon wheel is not only pushed and pulled Noise, and more smooth, light, service life is not shorter than the above pulley, to make the door and window normal, smooth operation, it is necessary to choose a high-quality pulley for doors and windows. From the surface, the poor quality pulley is rough, not smooth, not flexible to slide, small and light. The plastic of high-quality nylon wheel is reinforced plastic. This kind of plastic is not ordinary plastic. It has high temperature resistance, wear resistance, bearing capacity and durability.