论文部分内容阅读
从一九七五年起,我厂开始在发动机热部件等零件上采用水基清洗工艺,现介绍如下。一、在发动机热部件上的应用燃烧室外套系高温承力部件,该部件为板料焊接,经车、镗、铣加工而成。其结构复杂,尺寸大、加工精度高、工序周期长。原工艺采用汽油清洗,由于部件转角多,体积大、大修件积炭又多,因此用汽油清洗无法满足工艺要求。从一九七五年七月起改用水基清洗工艺。 1.工艺配方
From 1975 onwards, our factory began to use water-based cleaning process on engine hot parts and other components, are described below. First, the engine hot parts on the application of combustion chamber jacket high temperature bearing components, the parts for sheet metal welding, car, boring, milling processing. Its complex structure, large size, high precision, long process cycle. The original process using gasoline cleaning, due to parts corner, bulky, overhaul and coke more, so with gasoline cleaning can not meet the technical requirements. From July 1975 onwards to use water-based cleaning process. Process recipe