Macro examination, metallographic microscope, microhardness tester and X ray diffractometer were utilized to study the failure reasons for connecting rode bearing bush of automobile engine.
采用宏微观检验、显微硬度测定、X射线衍射等方法对汽车发动机连杆轴瓦的失效进行了分析。
The macro profile and physicochemical examination of the tread oblique crack shows that the crack falls into the category of rolling contact fatigue type.
踏面斜裂纹及断口的宏观形貌和理化检验与分析表明，踏面斜裂纹伤损属于滚动接触疲劳裂纹伤损类型。
Fracture tooth of gear shaft in well drilling pump was analysed by chemical analysis, mechanical testing metallographic examination macro and microfractography.
采用化学成分分析、力学性能测定、金相检验以及断口宏、微观分析等方法，对钻井泵齿轮轴断齿进行了分析。
The quality analysis for gas nitrocarburized inner gear ring of heavy truck imported from Austria was taken by means of macro/micro-examination, hardness measuring and running test.
利用宏观分析、显微检验、硬度测试和装车试验等手段，对引进奥地利重型汽车内齿圈按照新的气体氮碳共渗工艺处理后的质量进行了研究。
Through macro and micro examination and characterization, the quality of the condenser was accurately evaluated, and some improvement and suggestion were also proposed.
通过对冷凝器的宏微观检查与表征，评价了冷凝器质量的优劣，提出了改进措施与建议。
The microstructure characteristics, macro and micro fracture morphology of brittle broken embedded casting closure of T9815 turbines were investigated by means of metallographical examination and SEM.
借助光学显微镜、扫描电镜等手段，对用埋铸法生产的T9815气轮机组隔板断裂部位的金相组织特征，宏观和微观断口形貌等进行了研究。
The reason of roll fracture has been analyzed by means of chemical composition analysis, macro fractograph, low magnification structure and microstructure examination.
采用化学成分、宏观断口、低倍组织及金相组织等分析方法对轧辊断裂原因进行了分析。
The reason of roll fracture has been analyzed by means of chemical composition analysis, macro fractograph, low magnification structure and microstructure examination.
采用化学成分、宏观断口、低倍组织及金相组织等分析方法对轧辊断裂原因进行了分析。
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