超声波清洗作业指导书

铸件前期处理 Pretreatment of casting parts经修磨后的工件，用钢丝刷清扫，检查处理“死角”，并注意标识。After grinding of work pieces, brush parts with steel brush, check and carefully clean ‘dead angle’ area and pay attention to the marking area. 洗液配制 Preparation of cleaning solution在水中加入脱脂剂，使溶液PH值在8-9之间。Add degreasing agent in the water and make the PH value of the solution between 8～9.

超声波清洗 Ultrasonic cleaning超声波清洗前处理：先用清水冲洗铸件表面污渍，再用抹布把内腔及死角油污擦试干净。Prepare work before ultrasonic cleaning: first of all, using water wash away all the dirt on the surface of casting, and then using a piece of cloth clean all the dirt and oil in the corner or the inner surface of castings.将工件放在50±5℃左右的清洗液中，将电流调至3-3.5之间，超声波清洗10-15分钟。同时用长毛刷把内腔和死角清刷干净。Put the work pieces in the washing solution about 50±5℃， adjust current value between 3-3.5, Wash casting parts with ultrasonic wave for 10～15 minutes. At the same time, using the brush clean the inner surface and corner thoroughly.

清水清洗 Washing with clean water将超声波洗过的产品放入清水槽中，浸泡5分钟左右，用清水冲洗。在冲洗的过程中，用毛刷边冲洗边刷内腔死角Put work pieces which have been conducted with ultrasonic cleaning into sink of clean water, immerse about 5 minutes, then washing with clean water. During the washing process, using the brush wash the inner surface and corner.

清水冲洗后的产品，用压缩空气吹干水分，吹干螺纹孔。Casting parts which have been washed by clean water should be dried with compressed air and the screw holes should also be blown dry.清洗后的工件，内外表面应无油污及附着物。The inside surface and outside surface of casting parts which have been washed should be clean without grease and adherent impurities. 营口象圆新材料每天测定PH值，上/下午上班时各测一次，低于8的时候，添加适量脱脂剂。Measure PH value twice a day- every morning and afternoon, when PH value is below 8, add appropriate quantity of degreasing agent.