近几年来,国内外在管路连接上已广泛使用一种卡套式管接头。这种管接头结构比较先进、性能可靠、重量又轻、体积还小、连接方便,是管路连接的一个发展方向。在学习无产阶级专政理论群众运动的推动下,在工厂党委及各级党组织的大力支持与工人同志的积极帮助下,又通过向上海、抚顺等地区学习,我们对卡套式管接头进行了一些试验工作,取得了初步成效。为了与兄弟单位共同对该型管接头进行深 In recent years, pipe fittings at home and abroad have been widely used in a card sleeve pipe joints. This pipe joint structure is more advanced, reliable performance, light weight, small size, easy to connect, is a pipeline connection development. Under the impetus of studying the mass movement of the proletarian dictatorship and with the active support of the factory party committees and Party organizations at all levels and the workers’ comrades, and by studying in Shanghai, Fushun and other regions, we carried out the research on the ferrule fittings Some experimental work has achieved initial success. In order to work together with the brother unit of the type of pipe joints deep