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- The results showed that the main reasons of reductor shaft fracture are weld cracks,slag inclusions and massive inclusions which exist in the structure of the reductor shaft. 结果发现断轴组织内部存在焊接裂纹、夹渣及块状夹杂物等缺陷,这些缺陷形成微小裂纹源,使减速机轴在弯曲旋转作用力下发生疲劳断裂。
- The results showed that the main reasons of reductor shaft fracture are weld cracks, slag inclusions and massive inclusions which exist in the structure of the reductor shaft. 结果发现断轴组织内部存在焊接裂纹、夹渣及块状夹杂物等缺陷,这些缺陷形成微小裂纹源,使减速机轴在弯曲旋转作用力下发生疲劳断裂。
- The paper introduced the methods of non-destructive inspection of the 2008T/H boiler ceiling reheater pipes at the sealing structure,studied the reasons of weld cracks. 认为顶棚密封板的结构、再热器管子与密封板的焊接质量是导致焊缝开裂的主要原因,并提出了结构改进措施。
- Some new technologies such as infrared thermal imaging,laser holography and microwave testing were prospected in the testing of weld crack. 对红外热成像检测、激光全息检测和微波检测新技术在焊接裂纹检测中的应用进行了展望。
- Workers are using electric welders to weld cracked steel. 工人正在用电焊机把断裂的钢筋焊结在一起。
- The application status of magnetic particle testing,penetrant testing,eddy current testing,radiographic testing and ultrasonic testing in weld crack inspector were introduced. 介绍了磁粉检测、渗透检测、涡流检测、射线检测和超声波检测技术在焊接裂纹检测中的应用状况。
- The weld crack of mating flange of high-pressure hydrocracking reactor is described in this article,but the focus is on the checking method of crack,crack cause and repaired checking method. 文章叙述了高压加氢裂化反应器配对法兰接管焊缝裂纹现象,重点介绍了裂纹的检查检测方法、产生原因及修复检验方案。
- The result shows that the satisfactory weld quality of the quenched and tempered 30CrMnSiA steel with LBW will be got easily. The weld crack and the obvious change of performance at the heat-affected zone are not appeared. 结果表明 ,采用激光焊接调质状态下的 30CrMnSiA钢 ,易获得质量优良的焊缝 ,不会出现常见的焊接裂纹和明显的热影响区性能变化 ;
- Analyses on weld cracks of high strength steel penstocks 三峡电站压力钢管高强钢焊接裂纹浅析
- By analyzing the relation of microstructure,weld zone quality and tensile property,it is concluded that the welding techn-ological parameter of L245 steel is the main factor of the welding crack. 通过分析L245钢埋弧焊焊缝区质量、微观组织和拉伸性能关系表明,焊接工艺参数的合理制定是低合金钢L245焊管产生裂纹等缺陷的关键因素。
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- Stress concentration zones caused by welding cracks are the most dangerous weak-links in service processes of welding works,so an effective safety evaluation of the links is of great importance. 焊接裂纹产生的应力集中区是焊接构件在服役过程中最为危险的一个薄弱环节,对这个环节进行有效的安全评估,具有重要意义。
- Many leakages at welds of the old tube system were found in gastight test, and the cause was verified by site investigation to be welding cracks produced in original manufacture and construction. 分别对焊缝区裂纹和母材热影响区裂纹的形态和产生原因进行分析,指出此裂纹属沿晶开裂,由组织粗大和焊接热应力引起,并根据分析的原因制订了缺陷的修复方案和具体的修复措施,缺陷修复后经气密检验合格。
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- Test plates with prepared welding cracks were made by designed experiment, the different areas of the test plates were detected by Metal Magnetic Memory (abbreviation MMM) method in different times. 预制了焊接裂纹试板,在试板的不同空间区域,以及焊接之后的不同时刻进行了金属磁记忆检测。
- Some metals weld better than others. 有些金属容易焊,有的不容易焊。
- Mr Robert has been examining his house for cracks. 罗伯特先生在检查他的房子,看看是否有裂缝。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- Abstract: The feature of new developed HSLA steels for large heat input welding with low susceptivity to weld cracking was presented. 摘 要: 简要叙述了新研制的大线能量焊接低焊接裂纹敏感性调质高强度钢的特点。
- You'll crack up if you go on working so hard. 你继续这样拚命干下去,身体会吃不消的。