铸铁承插管刚性接口的填料,目前广泛采用石棉水泥,特殊部位也有用青铅的。纯水泥接口,虽国内外已有成功的先例,但对它的性能缺乏全面的了解。水泥砂子接口更是一种新型式。最近,我们对纯水泥和水泥砂子作填料的接口同石棉水泥接口作了对比试验。试验结果,认为纯水泥和水泥砂子接口的质量比青铅和石棉水泥两种填料要好一些,后期的使用效果也比较可靠。它们的主要优点是既能保证接口的质量,又能节约大量的石棉纤维和油麻,操作简便省 Fillers for rigid joints of cast iron sockets are now widely used asbestos cement, and special parts are also used for cyanite. Pure cement interface, although there are successful precedents at home and abroad, it lacks a comprehensive understanding of its performance. Cement sand interface is a new type. Recently, we conducted comparative tests on the interface between the pure cement and cement sand as a filler and the asbestos cement interface. The test results show that the quality of the interface between pure cement and cement sand is better than that of green lead and asbestos cement. The use effect of the later stage is also relatively reliable. Their main advantage is to ensure the quality of the interface, but also save a lot of asbestos fiber and linseed, easy to operate and save