窗五金配件的分类及用途介绍（Classification and application of window hardware fittings）.doc

窗五金配件的分类及用途介绍（Classification and application of window hardware fittings） Introduction: the development of window hardware accessories is closely related to the evolution of window type and window opening mode. The reason for this evolution is the peoples consciousness of window function and the convenience of window usage. Window hardware classification Hardware fittings for sliding windows The guide rail of aluminium alloy or plastic steel sliding window is directly formed on the window frame section bar, and the pulley system is fixed at the bottom of the window sash. Whether the sliding of the sliding window is comfortable depends not only on the quality of the pulley system, but also on the flatness of the profile and the machining accuracy and the mounting accuracy of the window frame. The wear and tear of dust on track and pulley will also affect the switch function of sliding window. The lock of the sliding window is usually a latch, which is invalid because of the poor installation accuracy and dust accumulation. The handle of the sliding window is usually replaced by the switch part of the latch type, but also the high-grade sliding window makes the window sash profile arc shaped and plays the role of the handle. Two common casement window hardware fittings One of the basic parts of casement window is hinge. Because of the unidirectional opening of the hinge, the hinge is always installed in the opening direction, that is, the inner window and the hinge are arranged indoors, and the outer window opening hinge is arranged outside. In order to prevent the hinge from affecting the sealing of the window, the hinges of the metal window are usually welded outside the window section. The outside window lock is a rotary type of card lock, and the handle is usually combined with the lock phase. The ordinary inner window lock can be a simple bolt. The drawback of the latch is the compression function of the rotary cassette lock. The handle inside the window is indep