| 品牌 | ASCO |
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美国NUMATICS电磁先导阀
阀芯阀套框架特点阀芯、阀套都用440c不锈钢管制作加工成,经高精密制作加工,提升高导致精度互相配合公差,腐蚀痕迹仅1μm。可能是匹配打磨抛光打磨抛光零件,故这些食品不存在相互交换性,务必成套设备提供。当气流过阀套上圆洞进到,在阀芯、阀套间很小腐蚀痕迹中出现一新鲜氧气塑料膜,阀芯在阀套中重新对中。当阀芯在这般新鲜氧气的轴承上健身运动时,像飘浮在新鲜氧气原子场中一件,*不存在金属制间的使用。这般新鲜氧气飘浮机构引致了有以下后果:美国NUMATICS电磁先导阀
(1)芯套间的精密配合形成密封。*摒弃了蕴含许多故障因素的“○"形圈动态密封。
(2)这是一种理论上无磨损的长寿命结构。
(3)空气轴承允许阀工作在经一定过滤得*无润滑场合。与其它号称无油润滑元件相比(实际上装配时已涂上一层不易挥发的润滑脂),这是一种真正意义上的无油润滑。
(4)移动阀芯启动力极小且操作力恒定,这是制造高质量直动阀的要条件。它可不依赖先导压力使直动阀工作在真空到21bar(甚35bar)场合。
(5)芯套相同材质,热膨胀系数*一样,在高温下也能确保空气轴承的存在。
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