35 MN液压机缸体裂纹检验分析

刘晓磊,时飞扬,陈昌华,闵明,胡家豪

物理测试 ›› 2022, Vol. 40 ›› Issue (6) : 51.

物理测试 ›› 2022, Vol. 40 ›› Issue (6) : 51. DOI: 10.13228/j.boyuan.issn10010777.20220004
缺陷分析

35 MN液压机缸体裂纹检验分析

  • 刘晓磊1,时飞扬2,陈昌华1,闵明1,胡家豪1
作者信息 +

Inspection and analysis of cracks on 35 MN hydraulic press cylinder

  • 刘晓磊1,时飞扬2,陈昌华1,闵明1,胡家豪1
Author information +
文章历史 +

摘要

35 MN液压机主缸正常作业时,缸体下部发生大量漏油现象。拆卸后通过宏观分析、磁粉检测、低倍检验、力学性能检验以及金相检验等方法对缸体周向裂纹产生原因进行分析。结果表明:裂纹源于缸体外圆R角处,由外壁向内壁扩展,缸体过渡圆弧处表面加工刀痕和力学性能远低于技术要求导致周向裂纹的产生并造成漏油现象发生。

Abstract

During the normal operation of 35 MN hydraulic press, a large amount of oil leakage occurred at the lower part of the main cylinder. After disassembly, the causes of circumferential cracks in the cylinder block were analyzed by means of macroscopic examination, magnetic particle testing, macroscopic examination, mechanical property inspection and metallographic inspection. The results showed that the crack originated from the R angle of the outer circle of the cylinder and then extended from the outer wall to the inner wall. The surface machining knife mark and mechanical properties at the excessive arc of the cylinder were much lower than the technical requirements, which caused circumferential cracks and oil leakage.

关键词

磁粉检测 / 表面加工刀痕 / 超声检测 / 液压机主缸 / 周向裂纹

Key words

ultrasonic inspection / magnetic particle testing / surface machining knife mark / hydraulic press master cylinder / circumferential crack

图表

引用本文

导出引用
陈昌华, 刘晓磊, 闵明, . 35 MN液压机缸体裂纹检验分析[J]. 物理测试, 2022, 40(6): 51 https://doi.org/10.13228/j.boyuan.issn10010777.20220004
CHEN Changhua, LIU Xiaolei, MIN Ming, et al. Inspection and analysis of cracks on 35 MN hydraulic press cylinder[J]. Physics Examination and Testing, 2022, 40(6): 51 https://doi.org/10.13228/j.boyuan.issn10010777.20220004

7

Accesses

0

Citation

Detail

段落导航
相关文章

/