管坯轴向裂纹,Axial crack of hollow bloom
1)Axial crack of hollow bloom管坯轴向裂纹
2)axial crack轴向裂纹
1.The ultrasonic inspection technology of the pipelineaxial crack was .另外,对管道轴向裂纹的超声检测技术也进行了初步研究。
bined with Paris equation and weight function method,J integral calculation method foraxial cracks of pipeline subjected to internal pressure is presented in this paper.在管道的制造、安装和运行期间,不可避免地会产生类似于裂纹的缺陷,轴向裂纹是最常见的裂纹。
英文短句/例句
1.Failure Pressure Analysis of SG Tube with Axial Crack蒸汽发生器含轴向裂纹传热管的失效压力分析
2.Numerical Simulation of Temperature Field and Stress Field for and Axial Crack Analysis of Heavy-wall Centrifugally Cast Hollow Bloom厚壁离心管坯温度场和热应力场的数值模拟及其轴向裂纹分析
3.Analysis of Fundamental Frequencies of Rotating Shafts with Transverse Crack;含横向裂纹的转动轴的振动基频分析
4.Analysis on Performance of Axial Throughwall Crack Pipeline Repaired by Sleeve轴向穿透裂纹管道套管修复性能研究
5.Analysis on the vibration characteristics of cracked beams subjected to axial force轴向压力影响下裂纹梁振动特性分析
6.Elastic-Plastic Finite Element Analysis for Piping Elbow with Axial Inside Surface Cracks;光滑弯管沿轴向内表面裂纹弹塑性有限元分析
7.Influence of transverse crack model on shafting"s torsional shear stress轴系横向裂纹模型对其扭转剪应力的影响
8.Elastic-Plastic Fracture Analysis for Internal Axial Surface Half Elliptical Cracks in Oil & Gas Pipeline油气管道内部轴向表面半椭圆裂纹弹塑性断裂分析
9.FRACTURE AND RELIABILITY ASSESSMENT ON SUBMARINE PIPELINES WITH AXIAL SURFACE CRACKS带轴向表面裂纹海洋管道的断裂计算与可靠性评估
10.To ensure this, specimens must be of sufficient thickness so that a triaxial state of stress can exist at the flaw tip.为此，试样必须足够厚，使裂纹顶端处于三轴向的应力状态。
11.Elastic-Plastic Finite Element Analysis for Unequal-Diameter Tee Joint with Axial Through-wall Cracks at the Shoulder焊制异径三通肩部轴向穿透裂纹弹塑性有限元分析
12.The Experimental Analysis of the Correction Factor of the SIF for the Transverse Surface Semi-Elliptic Crack of a Axle轴表面横向半椭圆裂纹应力强度因子修正系数的实验分析
13.SIMULATION AND EXPERIMENTAL INVESTIGATION ON COUPLED STIFFNESS OF ROTATING SHAFT WITH TRANSVERSE CRACK具有横向裂纹转轴耦合刚度的数值模拟和实验研究
14.Shaft crack fault diagnosis based on grid support vector machines基于网格式支持向量机算法的转轴裂纹故障诊断
15.Hardening Crack Analysis and Prevention Measurement for 45 SteelWobbling Arm Axis45钢摆臂轴淬火裂纹分析及防止措施
16.RESEARCH OF THE FATIGUE CRACK PROPAGATION CHARACTERISTIC ON RAILWAY HOLLOW AXLES高速客车空心车轴裂纹扩展特性研究
17.Simulation for Short Fatigue Cracks Initiation of LZ50 Axle Steel for Railway VehiclesLZ50车轴钢疲劳短裂纹萌生的数值模拟
18.(2) The method which used to build the unequal-diameter tee joint with axial through-wall crack has been established.(2) 确定了肩部含轴向穿透裂纹焊制异径三通有限元模型的建立方法。
相关短句/例句
axial crack轴向裂纹
1.The ultrasonic inspection technology of the pipelineaxial crack was .另外,对管道轴向裂纹的超声检测技术也进行了初步研究。
bined with Paris equation and weight function method,J integral calculation method foraxial cracks of pipeline subjected to internal pressure is presented in this paper.在管道的制造、安装和运行期间,不可避免地会产生类似于裂纹的缺陷,轴向裂纹是最常见的裂纹。
3)Slab crack铸坯裂纹
1.The reasons of slab crack under unsteady casting were analysed.分析了非稳态浇注时导致铸坯裂纹产生的原因,通过采取相应的控制措施,降低了非稳态浇注时铸坯裂纹的发生率。
4)surface axial crack表面轴向裂纹
1.And it can be turned into surface circumferential crack andsurface axial crack.套管裂纹缺陷中最危险的是表面裂纹,可分解成表面周向裂纹和表面轴向裂纹问题。
5)internal axial crack轴向内部裂纹
1.Through the analysis of h_1~n curve for cylinder with aninternal axial crack, this paper determines the normalised load for this cracked body, and gives the estimation formula of strain hardening exponent in a widened interval.通过分析含轴向内部裂纹圆筒的h_1～n曲线,给出了这种裂纹体的标准载荷和关于应变硬化指数的拓宽范围内的估算公式。
6)axial semi-elliptical轴向半椭圆裂纹
延伸阅读
管坯管坯tube blankguanPI管坯(tube blank)生产热寿L无缝管用的坯料。种类有铸锭、连铸坯、轧坯、锻坯以及空心铸坯。大量应用的是圆形轧坯和连铸坯。离心浇注的空心坯多用于高合金钢和难穿孔的金属。钢锭仅用于大中型周期式轧管机组。(见热乳无缝管机组)由于斜轧穿孔(见二辘针札穿孔)不利的应力状态和大的不均匀变形，易产生缺陷，以及对产品要求较严，制管用钢多为均质的镇静钢或半镇静钢。坯料断面形状由管坯穿孔方式决定，推札穿孔和压力穿孔常用方坯，斜轧穿孔用圆坯。连铸坯发展很快。圆管坯的连铸有水平连铸和弧形连铸。(见彩图插页第21页)连铸坯不但成本低，而且质量好(偏析小，夹杂物富积少等)。由于连铸省略了开坯工序，为保证产品应具有的性能，由连铸坯轧至成品应有足够的压缩比。管坯的内部缺陷主要有缩孔残余、中心疏松以及非金属夹杂物聚集。外表缺陷主要有非金属夹杂物积聚、浇注时产生的纵横向裂纹以及开坯时出现的耳子、折叠和结疤等。管坯质量在很大程度上决定于非金属夹杂物对金属的污染程度。提高金属的纯净度是提高管坯质量的基础.生产中应采用一些提高钢的纯净度和减少非金属夹杂物的冶炼和浇注工艺，如炉外精炼、真空脱气、钢包吹氢、保护气体浇注、电磁搅拌等。为了避免管坯上留有冶炼、铸锭等工序造成的缺陷，对管坯进行检查并对缺陷进行清理是必要的。检查的方法有人工检查和无损探伤。对表面缺陷应进行砂轮清理、风铲清理、火焰清理或剥皮。(李连诗)
