目前，铝合金富在工程中应用广泛。由于其型材壁厚较薄，采用平开窗刚度不足，且接头处不易处理，因而多采用推拉自。推拉富容易向室内渗水，特别是建筑物北、东生面，因雨天多为东北风，渗水现象更为严重，使室内四面发生潮湿、霉变，涂料甚至抹灰层脱落；若室内采用胶合板或 At present, aluminum alloys are widely used in engineering. Due to the thin wall thickness of the profiles, the lack of rigidity of the casement window and the difficulty in handling the joints make the use of push-pulls. Push-pull water is easy to seep into the room, especially in the north and east of the building. Because the rain is mostly northeasterly, the water seepage phenomenon is more serious, causing dampness and mildew on all four sides of the room. The paint and even the plaster layer fall off; if the interior uses plywood or