Along with the architectural form and the function requirement of development, the requirements of window curtain wall more and more high, but in order to meet the requirements of the architecture, hardware systems technology in door window design of the function also needs to be rethought. This looks very simple, but that is not the case. This requires careful planning, guide and for a lot of energy and financial resources to achieve the design purpose. Development of the system hardware design should have certain adaptability and flexibility. The design and development should be considered in the process of "building factor" and "human factors". Make its adornment sex, functional, safety, convenient and comfortable sex all should meet the requirements of the architectural design. For aluminum alloy doors and Windows system development and design of ultimate goal-kind of new doors and Windows form, only when the designer mind produced complete clear design concept, can produce clear Windows and doors form. So in order to achieve this goal, the designer must have it back to the original function factors problems, and can find some mode. Only understand our goals and design criteria, and then to system development. So Windows system development with the Windows and doors to the selection of hardware or development is closely tied to the each ather. More important is the window of door of wind pressure deformation, water tightness, air tightness and heat preservation sex, sound insulation sex, sex, sex deformation in opening and closing, vertical load, and repeatedly opening and closing of all and hardware system relevant, hardware system performance of window of the advantages and disadvantages, has played a decisive role, as the door window industry experts LiZhiYi professor advocated "hardware fittings, but the window of door of supporting the heart".

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