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本文主要针对各种封头旋压裂纹的特点,按其成因进行了归纳和分析,并提出了相应的预防和工艺改进措施,对生产有一定的指导意义。照片2。
In this paper, the main characteristics of all kinds of head spinning cracks are summarized and analyzed according to their causes, and the corresponding preventive and technological improvement measures are put forward, which are of guiding significance to the production. Photo 2.