我厂按国际标准制造的工业汽轮机油系统,内表面喷丸除锈后不允许涂擦,但部分零件又要求必须在喷丸后才能作水压试验。由于喷丸表面自由能较高,水压试验时很容易生锈。如果在水中添加防锈剂则会残留在零件表面,并且成本高、有污染。为解决此问题我们对喷丸表面分别采用20~#机械油、501防锈油、74—2硬膜防锈油、软膜防锈油等在压试验前涂在要保护的表面上,试压后进行检查,结果表明:20~#机械油油膜强度低易被水流冲刷破裂而失效,同时防水腐 I plant in accordance with international standards of industrial steam turbine oil system, the inner surface of the shot peening does not allow rubbed, but some of the parts and requirements must be peen after the hydraulic test. Due to the higher free energy of the shot peening surface, it is easy to rust during the hydrostatic test. If you add anti-rust agent in the water will remain in the parts surface, and the high cost, pollution. In order to solve this problem, we use 20 ~ # mechanical oil, 501 anti-rust oil, 74-2 hard film anti-rust oil and soft film anti-rust oil on the surface of shot peening After the pressure test, the results show that: 20 ~ # mechanical oil film strength low easily ruptured by the erosion of water failure, while waterproof rot