皮下夹杂是造成表面裂纹的原因之一。
Subsurface inclusion is one of the reasons causing surface crack of rolled steel.
采用双光束激光修复碳钢零件的表面裂纹。
Surface crack of steel components was repaired with two bundle of laser.
测量了表面裂纹形状随裂纹长度的变化规律。
The variation of the shape of cracks with the crack length was investigated.
对双金属带锯条表面裂纹的形成原因进行了分析。
The surface cracks of the bimetal strip sawblade was investigated in the paper.
研究结果表明表面裂纹是因冷却速率过快所造成的。
The results indicate that the emerging surface crackle are due to the too rapid cooling rate.
低周疲劳表面裂纹演化可能具有非线性动力学特征。
There may be non linear dynamic characteristics during the evolution of the surface Low Cycle Fatigue (LCF) cracks system.
管坯的表面裂纹会对无缝钢管的质量产生极坏的影响。
Any surface cracking of the bloom will cause ser - ious quality problem.
适当的选材与低温预热及后热可以抑制表面裂纹的产生。
Proper selection of materials, preheating and postheating can help to avoid cracking.
用扫描电子显微镜观察和测量腐蚀后硅样品的亚表面裂纹。
The depth of cracks on the silicon sample subsurface corroded was measured by a scanning electron microscope.
并利用K相似原理，把表面裂纹问题转换为中心贯穿裂纹问题；
Then the K resemble theory was used to translate the surface crack to middle through crack.
本文分析了飞机前襟翼作动筒连接螺栓底座表面裂纹的形成原因。
The cause of the surface cracks of a bolt bed was analyzed in this paper.
采用线弹簧模型求解多个共面任意分布表面裂纹的应力强度因子。
The stress intensity factors of multitudinous arbitrarily distributed coplanar surface cracks are solved by using the line - spring model.
一些半椭圆表面裂纹问题的计算表明本文给出的关系式简单、有效。
Calculated results show that this relationship can be successfully used to describe the fracture behavior of surface crack problems.
用相关的电路模块设计了符合要求的金属表面裂纹深度定量标定系统。
The correlative circuit modules are used to design the quantitative indication system for crack depth on the surface of steel material.
对生产中出现的表面裂纹进行分析研究，提出改进措施，取得较好的效果。
The slab surface crack occurred in the process is analysed, and the improving measures are put forward. The good effects have been obtained.
又算出了这五种形状角焊缝趾端部和焊肉中央处的表面裂纹疲劳断裂的寿命。
The fatigue life of the surface cracks of the weld toe and the central part of the welding bead are calculated.
综述了管坯钢表面裂纹研究的进展，分析了影响管坯钢表面裂纹的主要因素。
The progress in research of crack for tube bloom is overiewed , The main factors affecting surface crack of tube bloom are analyzed.
给出高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses have been presented.
介绍了一种基于电磁超声波技术的火车车轮表面裂纹自动检测系统的设计方法。
Made a design of electromagnetic acoustic automatic detecting system for surface cracks of the train-wheels.
钢管裂纹的检测试验表明，该系统能很好地实现钢管表面和近表面裂纹的检测。
Experiment showed that the testing system was fit for detecting the surface and near surface defects of steel pipe.
给出了高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses were given out.
根据表面裂纹扩展规律及工程实际，给出了管状杆件表面的实际短、长裂纹范围。
According to the propagation rules of the surface cracks and the engineering practices, have been given the practical range of permissible short and long cracks on the tube surfaces.
使用性能合适的保护渣可以改善结晶器内初始坯壳的传热条件，控制表面裂纹的产生。
The heat transfer conditions in initial shells in mould can be improved and the surface cracks can be controlled by using good workability powders.
上述工作有助于全面认识宽度对漏磁场的作用，实现不同宽度、深度的表面裂纹量化检测。
The work mentioned above is helpful to understand width effects and evaluate surface crack with different width and depth.
介绍油管镦头表面裂纹涡流检测方法，包括探头的制作以及计算机控制过程和机械传动机构设计。
Eddy current detection of the surface cracks in the headings of brake tubes, including the making of testing probe, computer control and the design of mechanical driving mechanism is described.
在上海炼油厂预加氢反应器投用前的内外部检验中，发现了大量的焊缝表面裂纹和内部埋藏裂纹。
On overall inspection of interior and exterior of pre-hydrogenating reactor of Shanghai Oil Refinery Factory, large cracks was found on the surface of weld and inside of the weld.
电涡流检测是五大常规无损检测方法之一，检测方便、快捷，适合用于钢球表面裂纹的在线检测。
Eddy current testing is one of the five major routine nondestructive testing methods and it is convenient, fast and suitable for online detecting of the surface flaw of steel balls.
钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。
The residual deleterious elements in steel lead to products occurring red brittleness surface crack and temper brittleness, and lead to hot strength of heat resistant steel decreasing.
钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。
The residual deleterious elements in steel lead to products occurring red brittleness surface crack and temper brittleness, and lead to hot strength of heat resistant steel decreasing.
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