摘要
某发动机高压涡轮叶片为空心铸造叶片,型腔结构复杂,叶片选材为镍基铸造高温合金K465,叶片在毛料阶段及加工至成品后均安排进行X射线检查工序,以便发现叶片的内部缺陷。某发动机在进行200小时加速模拟试车过程中发现1片涡轮工作叶片出现裂纹,针对该次试车过程中出现的故障,对问题进行认真分析,积极开展了相关工作。本文详细介绍了铸造涡轮空心叶片陶瓷型芯残留在叶片内部的具体原因,并分析了残芯X射线检测的具体实施过程。
The high-pressure turbine blade of an engine is a hollow casting blade, and the cavity structure is complex. The blade material is a nickel-base casting superalloy K465. The blade is arranged in the wool stage and processed to the finished product, and an X-ray inspection process is arranged to find the internal defects of the blade. An engine was found to have cracks in one turbine working blade during the accelerated simulation test. In response to the failures during the test run, the problems were carefully analyzed and relevant work was actively carried out. In this paper, the specific reasons for the residual ceramic core of the cast turbine hollow blade in the blade are introduced in detail, and the specific implementation process of the residual core X-ray inspection is analyzed.
出处
《数码设计》
2019年第10期24-25,共2页
Peak Data Science
