[Chinese aluminum industry network] Whether it is aluminum alloy windows, or plastic windows, is the gradual replacement of sash windows, which is unsurprising fact. The fundamental reason is that the existing sliding window performance is much poorer than the casement window.
However, the author believes that there are three advantages to aluminum alloy sliding windows (including plastic sliding windows) compared to casement windows: One is safety: Push-pull windows are safer than casement windows. Sliding window opening fans have upper and lower glideslope restrictions, which cannot be automatically dropped unless the person actively removes them. The casement window is only fixed by two hinges, the strength of the connection part is limited, the phenomenon that the opening fan sinks or falls off occurs from time to time, or causes a serious safety accident.
The second is to open the fan in-plane deformation performance: the sliding window opening fan is balanced and firmly installed in the upper glideslope, and will not deform in-plane due to its own weight. Casement window opening fan installation is a cantilever type with one end fixed and one end free. In-plane deformation is very easy to occur, and the phenomenon of falling angle occurs, that is, the free end sinks under the action of gravity, which affects the use or appearance. The more prominent advantage of the sliding window is that it does not occupy space when used. Therefore, it is specially favored by users.
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