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- By means of the metallographical examination,chemical analysis and hardness measurement,die cracking was analyzed. 采用光镜、化学成分分析和硬度测试等方法,对模具材料进行了检测和分析。
- The failure of a gear shaft was analyzed by SEM analysis, macrograph, metallographical examination, mechanical test, chemical analysis and etc. 摘要采用扫描电镜、低倍检验、金相检验、力学试验和化学分析等方法，分析了人字齿轮轴发生劈裂的原因。
- Chemical analysis and metallograph examination were used to analyze the quenching cracking of shaft gear. 运用化学分析、金相检验等方法,对45钢制轴齿轮产生的裂纹进行检测分析。
- The cause of bursting of stop valve was studied by the methods of chemical analysis and physical and metallographical examination. 采用化学分析,宏微观检验等方法,对截止阀开裂原因进行了分析。
- Abstract The failure of a gear shaft was analyzed by SEM analysis, macrograph, metallographical examination, mechanical test, chemical analysis and etc. 摘要 采用扫描电镜、低倍检验、金相检验、力学试验和化学分析等方法，分析了人字齿轮轴发生劈裂的原因。
- This paper studied the causes of bursting of stop valve by the methods of visual inspection, metallographical examination, chemical analysis and mechanical property test. 采用宏微观检验、化学成分分析及力学性能测试方法对截止阀阀体爆裂原因进行了分析。
- The edge crack on Q345B wide strip steel was analyzed by means of chemical composition analysis,mechanical property testing,micro metallographical examination. 采用化学成分分析、力学性能测试、显微组织观察和夹杂物检验等方法对有边缘裂纹的Q345B宽带钢进行分析。
- Moreover,metallograph examination and hardness measuring are made for the specimens and electronic probing imposition for the diffusion layer. 结果表明,在共析温度以下进行催渗氮碳共渗,具有渗速快、渗层硬度高的特点;
- In this research,because impact absorbing energy of the 20#forging was not up to standard,it was analyzed by mechanical and metallographical examination. 对冲击功不合格的20%23锻件进行了力学性能和金相组织检验,结果表明金相组织呈带状组织。
- It was analyzed by means of metallographical examination, chemical composition analysis and inclusion testing, the results show that the fracture was mainly caused by no-metallic inclusion. 通过对层裂坯料进行宏、微观检验、化学成分和夹杂物分析,认为大颗粒硫化物夹杂及其富集破坏了基体的连续性,是镦制过程中产生裂纹的主要原因。
- METALLOGRAPHICAL EXAMINATION AND ANALYSIS OF LONGITUDINAL CRACK ON STEEL PLATE 钢板表面纵向裂纹的金相检验和分析
- The doctor was very thorough in his examination of the sick child. 医生对生病的孩子进行了仔细的检查。
- He was bewailing his failure in the examination. 他为考试不及格而悲伤。
- Jerry left the examination room with a light heart. 杰利轻松愉快地离开了考场。
- He was very sick at failing in the examination. 他对于考试不及格觉得很沮丧。
- He passed the examination with flying colors. 他考试中取得了优异成绩。
- He's het up about the examination. 他为考试而焦虑不安。
- This work will hardly stand close examination. 这种作品很难经得起认真的检验。
- He will take an oral examination. 他将接受口试。
- My father crammed me for the entrance examination. 我父亲为了入学考试帮我恶补。
