The results of microscope,SEM,TEM and EDS revealed that the particles precipitated in the pre- austenite grain boundaries will result in network cracks under sufficient stress such as thermal stress,bending and straightening stress due to uneven cooling of strand surface.
采用金相显微镜、SEM、TEM和EDS等方法,分析了因连铸板坯表面冷却不均匀引起γ→α反复相变导致碳氮化物在晶界析出,并在外力(热应力、弯曲矫直应力等)作用下产生沿晶界开裂的网状裂纹的形成机理,以及钢中[C]、Mn/S、[Al]、[V]、连铸冷却强度等对连铸板坯网状裂纹的形成和扩展的影响。
For the surface network cracks in 200mm thickness slabs for pipeline and veicle frame,it is found that the carbon content,Mn/S ratio and Al,Ti,V,Nb alloy additions and continuous caster conditions are attributa- ble to the formation and propagation of surface and subsurface network cracks.
统计分析了攀钢所产管线钢、梁板钢等200mm×1300mm连铸坯表层网状裂纹的影响因素;发现钢中碳、锰硫比、合金元素(Al,Ti,V)、连铸机设备和浇注状况对其形成和扩展都有重要影响。
For the surface network cracks in 200mm thickness slabs for pipeline and vehicle frame, it is found that the carbon content,Mn/S ratio and Al,Ti,V,Nb alloy additions and continuous caster conditions are attributable to the formation and propagation of surface and subsurface network cracks.
针对攀钢生产的管线钢、梁板钢等200×1300mm~2连铸坯表层出现网状裂纹,对其影响因素进行统计分析,发现钢中C、Mn／S 比和 Al、Ti、V、Nb 等合金元素及连铸机设备和浇注状况对连铸坯表层网状裂纹的形成和扩展都有重要影响。
glazed china with a network of fine cracks on the surface.
表面有网状裂纹的光滑的瓷器。
Surface Network Cracks in Low Carbon Boron Steel Casting
低碳硼合金钢表面网状裂纹成因分析
ANALYSIS ABOUT NET-SHAPE CRACKS ON THE SURFACE OF A350 LF6 CONTINUOUS CASTING BILLET
A350 LF6连铸坯表面网状裂纹分析
develop a fine network of cracks.
形成一个网状的裂纹。
To cause(china, for example) to become covered with a network of fine cracks.
使（瓷器等）表面出现网状的细裂纹
Close study of the surface of the picture shows up a network of fine cracks.
仔细察看画面，就会发现网状的细裂纹。
to become, or to cause to become, covered with a network of small cracks; The blazing sun crackled the desert sand.
变得或引起覆盖上网状的小裂纹。
A network of fine cracks on the surface of glazed pottery, china, or glassware.
裂纹上釉的陶器、瓷器或玻璃制品表面上的网状细裂纹
seal-split cowhide bag
海豹纹理状裂纹牛皮袋
FRACTURE TOUGHNESS MEASUREMENT OF CAST MAGNESIUM ALLOY BY CYLINDRICAL SPECIMEN WITH RING-SHAPED CRACK
用环状裂纹圆柱试样测定铸镁合金的断裂韧度
Crack Forecast with Continuous Casting Based on BP Neural Network
基于BP神经网络的连铸板坯裂纹预报
Shielding Effect Rule of Thermal Fatigue Crack Net and Calculating Method of Stress Intensity Factor of Main Crack
热疲劳裂纹网的屏蔽规律及主裂纹应力强度因子的计算方法
Study of Critical State of Crack Propagation in Hydrogenation Reactor
加氢反应器裂纹扩展临界状态的研究
Investigation on Surface Star-Like Crack of Q460C Billets
Q460C钢表面星状裂纹产生原因探析
The Study on Element Free Galerkin Methods and Numerical Simulation of Crack Propagation;
无网格GALERKIN方法及裂纹扩展数值模拟研究
Application of Neural Network to Insulator Cracks Detection in the Power System;
神经网络在电力系统绝缘子裂纹检测中的应用
Recognition of Insulator Crack Types Based on Neural Network and the Invariant Moment;
基于神经网络和不变矩的绝缘子裂纹类型识别
Characterizing Magnetic Flux Leakage Signal of Cracks Based on Improved BP Neural Network
使用改进型BP神经网络量化裂纹漏磁信号