为提高某产品零部件表面抗高温火药气体冲刷能力,解决该产品在设计定型试验中出现的船尾脱落问题,将铝合金船尾的表面处理工艺由原来的普通阳极氧化调整为微弧氧化,并进行了相应的工艺试验,将缓升缓降恒压分段控制方式作为批量生产的主要运行方式。经测试,微弧氧化膜层的各项性能指标明显优于阳极氧化膜层,能够满足产品质量要求。

In order to improve ability of resistance to erosion of high temperature propellant gas on surface of parts of a product and solve the boattail drop-out problem arose from product approval test, surface treatment process of aluminum alloy boattail was adjusted from original general anodic oxidation to micro-arc oxidation, and corresponding process test was carried out, take slow-rise and slow-drop constant pressure stage controlled mode as main running mode of batch production. After test, each property of micro-arcoxide film obviously exceeds anodic oxidation film, can meet product quality requirements.