弯管
- bend;elbow;angle branch;siphonium
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(1) [bend]∶弯曲的管子
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(2) [siphonium]∶某些鸟类的似骨的管,它连接中耳与颚弯曲部分的气室
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PLC在弯管机控制中的应用
The Application of PLC in the Control of Return Bend Machine
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大口径弯管三层PE防腐新技术比较分析防酸性气体腐蚀面层
Comparison & Analysis on Three-layer PE Anticorrosion Technology for Large Diameter Bend
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受内压P作用的纤维正交缠绕玻璃钢弯管结构设计和强度计算
Constructional Design and Strength Calculation of Orthogonal Filament & winding GRP Elbow under Internal Pressure
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异径直角弯管展开CAD的数学模型
Mathematical model for CAD of right - angle deformed elbow development
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微机控制缠绕90°弯管的CAD
CAD of a 90 deg Elbow Pipe Using Computer Controlled Winding
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复合材料弯管纤维缠绕路径和机器路径的CAD
CAD for the Fiber Path and Machine Path of Composite Elbows
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双U双π节能灯玻璃弯管机
Glass-pipe Bender for Double U and Double π Energy-saving Lamp
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U形管连续弯管工装及弯制工艺
Bender and Bending Technique on Shaped Continually U - Tubes
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用AutoCAD软件对弯管芯棒进行快速图解设计
The Fast Drawing of Mandril in Bending Tube by Using AutoCAD
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结果表明,在同一气体流速下,不同R/D的弯管的Δp变化显著;
The results show that , at the same gas velocity , the Δ p of bends with different R / D varies significantly ;
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PLC与HMI在自动弯管机中的应用
The Application of PLC and HMI in the Automatic Pipe Bender
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弯管外拱壁内表面周向裂纹的J估算方法的研究
Study on J-Estimation Schemes for Internal Circumferential Surface Cracks in Pipe Elbows
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含裂纹弯管的J估算方法的研究
Research on the J Estimation Method for Surface Cracked Elbows
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FRP钢塑复合衬里弯管铸模研究
Study on liner molding of STEEL-FRP composite elbow
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ANSYS二次开发技术在弯管缺陷超声导波检测数值模拟中的应用
Application of Second Development based on ANSYS Software on Simulation of Detection Defect in Curved Pipes Using Ultrasonic Guided Waves
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本文介绍了PLC在大口径中频加热弯管机控制系统中的应用,并给出了控制系统关键子程序的设计方案。
The Paper introduces the application of PLC in Medium-frequency heating bender for large caliber pipe , and design scheme of the main control sub-routine is given .
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CrO3对重力分离SHS陶瓷内衬弯管的影响
Influences of CrO_3 on Curved Ceramic-Lined Pipes Produced by Gravitational Separation SHS Process
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20G钢锅炉弯管蚀孔的失效分析
Failure Analysis for Corrosion of 20G Steel Boiler Bend
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介绍了石油化工设备加氢反应器90°弯管内壁TIG堆焊四自由度运动微机控制系统。
Movement control to 4 degrees of elbow pipe 90 ' during TIG cladding process using with microcomputer is introduced .
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以向量运算的方法,把三维数控弯管的X、Y、Z几何数据变换成Y、B、C加工数据,并用程序实现之,并指导了对弯管数据的形成。
By method of vector calculation , the data of three-dimensional numerical bender from X 、 Y 、 Z geometric data was changed to Y 、 B 、 C working data , this process through the procedure was finished .
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当F在Fr左右时,对于弯管,环形截面上存在八个涡,圆截面上存在四个涡,椭圆截面上存在四个或六个涡;
When F is about Fr , for curved pipes , the secondary flow appears eight vortexes for annular cross section and four for circular and four or six for elliptical ;
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本文主要针对石化工业管道典型部件,如衬管、弯管等结构元件,进行CFD数值模拟,定量研究管道流动与腐蚀的关系,并进行结构优化。
This paper mainly aimed at typical petrifaction industry pipes such as liner-pipe , elbow etc. to be simulated by CFD software to quantitative study relation between pipe flow and erosion and optimize pipes structures .
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本课题作为中国石油天然气集团公司“X80级管线钢管热煨弯管技术研究”的一部分。
This research topic is an integral part of the " Research on the Heat-stewed BendTechnology of X80 Pipe Steel " by CNPC .
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应用数学规划在对弯管进行极限上限分析时,使用Mises屈服函数所计算的塑性耗散功的不可微性可导致收敛困难。
The non-differentiability of the plastic dissipation calculated through the Von-Mises yield function leads to convergence difficulties when using mathematical programming to solve upper bound limit analysis of pipe elbow .
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DN1600×90°T型双承口球墨铸铁弯管研制
Development of DN1600 × 90 ° T-Type Double Socket Ductile Iron Elbow Pipe
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方法对414例食管癌和贲门癌患者使用WGW弯管形吻合器行机械吻合。
Methods WGW anastomotic stapler was applied in 414 patients with esophageal and gastric cardial carcinoma .
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在STAR-2003数控系统基础上,派生出STAR-2003W数控弯管机系统;
The STAR-2003W CNC pipe bending machine is derived from the STAR-2003 Universal CNC system based on Windows ;
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通过对有限元分析中材料本构关系的确定、接触边界条件的处理、求解算法的确定等关键技术的处理,运用大型非线性有限元分析软件Marc,建立了数控弯管有限元模型。
The NC tube bending FEA model was built in large nonlinear finite element software & Marc by setting the material construction relationship of FEA method , handling the boundary condition , setting the solving algorithm and handling other critical technology .
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用VC++6.0编程生成专用软件,根据用户输入的弯管参数完成计算和显示,同时将计算数据转换成DXF文件,供AutoCAD直接调用。
By special software based on VC + + 6.0 , user can input different parameters of the curved pipe to accomplish the calculation and display , meanwhile the relevant DXF file will be created and the data will be transferred into AutoCAD environment .
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分析认为,其原因是弯管加工和运行过程中产生了拉伸应力叠加,以及CH4+C2H4液体馏份中微量腐蚀介质的联合作用。
The SCC may be due to the superimposition of tensile stresses that take place during bending operation and working process of pure copper pipes , and the faint corrosion environment in CH4 + C2H4 liquid fraction .