The quality of aluminum alloy doors and windows can be judged from the selection of raw materials (aluminum profiles), the quality of aluminum surface treatment and internal processing, and the price of aluminum alloy doors and windows.
According to the materials and functions of doors and windows, they can be roughly divided into the following categories: wooden doors and windows, steel doors and windows, revolving door security doors, automatic doors, plastic doors and windows, revolving doors, iron flower doors and windows, plastic steel doors and windows, stainless steel doors and windows, aluminum alloy doors and windows, and glass fiber reinforced plastic doors and windows.
With the continuous improvement of people's living standards, the types and grades of doors and windows and their derivatives are increasing, such as heat-insulating aluminum alloy doors and windows, wood-aluminum composite doors and windows, aluminum-wood composite doors and windows, solid wood doors and windows, solar houses, glass curtain walls and wood curtain walls.
According to the opening mode, it can be divided into: flat opening, split opening, push and pull, folding, hanging, eversion and so on.
14. Classification by materials: wooden doors and windows, steel doors and windows, revolving door security doors, automatic doors, plastic doors and windows, revolving doors, iron flower doors and windows, plastic steel doors and windows, stainless steel doors and windows, aluminum alloy doors and windows, glass fiber reinforced plastic doors and windows, aluminum-wood composite doors and windows, etc.
The casement window has the advantages of large opening area, good ventilation, good sealing, sound insulation, heat preservation and good impermeability. It is convenient to clean windows with internal opening; Open does not occupy space when opened. The disadvantage is that the window width is small and the field of vision is not wide. The outer window occupies the space outside the wall and is easy to be damaged when it is windy; The inner window takes up some indoor space, so it is not convenient to use the screen window. It is also inconvenient to use screens and curtains when opening windows. If the quality is not up to standard, it may leak rain.
The advantages of sliding window are simple and beautiful, wide window, large glass block, wide field of vision, high daylighting rate, convenient glass cleaning, flexible use, safety and reliability, long service life, opening in one plane, less occupied space and convenient installation of screen window. At present, the sliding window is the most widely used. The disadvantage is that two windows can't be opened at the same time, only half of them can be opened at most, and the ventilation is poor; Sometimes the sealing is slightly poor. Sliding window: there are two kinds: left and right, up and down. Sliding window has the advantages of not occupying indoor space, beautiful appearance, economical price and good sealing performance. Adopt advanced slide rail, push it gently and open it flexibly. Using large pieces of glass not only increases indoor lighting, but also improves the overall appearance of the building. The window sash is in good stress state and is not easy to be damaged, but the ventilation area is limited to some extent.