By comparing different slit-shape diaphragm flexures axial stiffness coefficient,radial stiffness coefficient and stiffness ratio in the course of elongating,the spiral slit-shape diaphragm flexure was selected.
通过对比不同缝形面弹簧在轴向拉伸过程中的轴向刚度、径向刚度、刚度比,确定了螺旋缝形是相对最优缝形。
The spiral weld of some long-distance crude oil pipeline cracked during operation.
某原油管道在运行期间发生了螺旋焊缝开裂事故,通过对管道开裂处进行宏观检查、断口微观形貌分析、能谱分析、显微组织分析、硬度测试和材料性能拉伸试验,结果表明,螺旋焊缝中存在焊接缺陷,使得管道的承载能力降低,在积水的作用下发生了螺旋焊缝开裂。
In order to study the effects of service time on mechanical properties of spiral weld of oil pipelines,a series of tensile and fatigue tests were performed on 16Mn oil pipeline materials,which were cut from the Luning oil pipeline with service for about 30 years and from a new pipeline.
为研究服役时间对螺旋焊缝管道材料力学性能的影响,对服役了近30 a的鲁宁管线和尚未投入使用新管线的有焊缝与无焊缝16Mn管道材料分别进行了拉伸试验和疲劳试验。
Research on Thin-wall Spiral Weld Stainless Steel Pipe Manufacturing Technology
薄壁螺旋缝不锈钢焊管制造技术研究
Research on Feasibility and Manufacturing Technique of Heating Bending SSAW Pipeline;
螺旋缝焊管热煨弯管可行性与制造工艺研究
Porosity Causes Comprehensive Analysis and Preventive Measure of SSAW Pipe
螺旋缝埋弧焊管焊缝气孔产生原因综合分析及防止措施
Effect of Prestrain on Tensile Properties for X80 Grade Spiral Submerged-arc Welding Steel Pipe
预应变对X80级螺旋缝埋弧焊接管线钢拉伸性能的影响
Inside Weld Crack Analysis and Control of SSAW Pipe
螺旋埋弧焊管内焊缝裂纹分析与控制
Cause Analysis on Weld Brittleness of X80 Grade SSAW Pipe
X80级螺旋埋弧焊管焊缝脆化原因分析
Quality Evaluation of Spiral Seam Cold Bending Pipe of X70 Steel
X70钢螺旋焊缝冷弯管的质量评价
The crew unscrewed the screws from the sewing-machine and chewed them.
船员们从缝纫机上旋下螺钉并咀嚼它们.
The Temperature Control System in HF Spiral Pipe Mill
高频螺旋焊管焊缝温度的闭环控制系统
Study on the X-Ray Real-time Digital Imaging System Used in Welding Line of the Spire Welded Pipe;
螺旋焊管焊缝X射线实时数字成像系统研究
Research on Intellectualized Control System for the Automatic Tracking of External Weld Seam of Spiral Weld Pipe;
螺旋焊管外焊缝自动跟踪智能控制系统研究
Study and Development of On-Line Detection and Tracking System of Seam in Helix Welded Pipe;
螺旋钢管焊缝在线检测及跟踪系统的开发研究
Generation and Elimination of Slag in Gas Pocket of Spiral Submerged Arc Welded Pipe
螺旋埋弧焊管焊缝夹珠型气孔的形成与消除
Feasibility of measuring palate bone thickness and bone mineral density using spiral computed tomography
螺旋CT测量腭中缝骨厚度及骨密度的可行性
The Prediction of SSAW Pipe Weld Reinforcement Based on BP Neural Network
基于BP神经网络的螺旋埋弧焊管焊缝余高预测
The Triaxial Magnetic Flux Leakage Signal Analysis of Spiral Weld Roof Topping and Hi-Low Defects
螺旋焊缝噘嘴错边缺陷三轴漏磁信号分析
spiral part of a screw
（螺钉的）螺旋部分.
Feasibility Analysis of Internal Detection Technology for Crack in Spiral Seam Pipeline
裂纹内检测技术应用于管道螺旋焊缝的可行性分析
