By analysing the main common shortcomings on quality for sliding sash of aluminium alloy, the paper points out several problems that they must be noticed in checking quality and puts forwards proposals to improve the model of window foot rail.

• 通过对铝合金推拉窗主要质量通病的分析,指出了对其进行质量检查必须重视的几个问题,并提出了推拉窗下档料型断面改进的建议。