目前铝合金推拉窗的应用较为盛行,但在使用当中常发现一些问题。比如推拉过程中常常发生脱轨现象。由于窗扇是先向上插入轨道槽,而后再使下部走轮落在轨道上,所以上部留有较大空间。如果安装不好或使用不当(例如 At present, the application of aluminum alloy sliding window is more prevalent, but some problems are often found in use. For example, derailment often occurs during pushing and pulling. Since the sash is inserted into the track groove first, and then the lower running wheel is dropped on the track, the upper part leaves a larger space. If it is not properly installed or used improperly (eg