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机械设备的“三漏”问题,不仅浪费油料和水、汽,还严重影响设备的使用寿命,甚致造成设备事故和污染环境,因而搞好设备的密封,实是搞好防漏的关键。 聚四氟乙烯工程塑料(简称F-4),具有化学稳定性好,使用温度范围广(-180～+250℃),磨擦系数较低,柔软而有弹性,是一种较理想的密封材料。我厂先后使用F-4制品作清水泵、料浆泵、闸门和变速箱等的轴封,都取得了较好的密封效果。现以F-4生料带在高压喂料泵上的应用为例简介如
The problem of “three leaks” of machinery and equipment not only wastes oil, water and steam, but also seriously affects the service life of the equipment. It even causes equipment accidents and pollutes the environment. Therefore, to improve equipment sealing is the key to prevent leakage. PTFE engineering plastics (referred to as F-4), with good chemical stability, wide temperature range (-180 ~ +250 ℃), low coefficient of friction, soft and flexible, is an ideal sealing material . I plant has used F-4 products for water pumps, slurry pumps, gates and gearbox, etc., have achieved good sealing effect. Now F-4 raw material in the high-pressure feed pump on the application as an example