Pull-out force study of tube-to-tubesheet joints in heat exchangers

换热器 管子 与 管 板接头拉脱力的研究

Failure analysis of tube-to-tubesheet joints of dual-shell U-tube heat exchanger

双壳程U型管换热器 管子 与 管 板连接失效分析

The process of hydraulic expanding of tube-to-tubesheet joints was simulated using finite element method based on 2-D axisymmetrical model . Then the residual stress and deformation of joints were determined in this paper .

采用有限元法，建立二维轴对称模型，模拟了 不同 胀 槽 尺寸结构的液压胀接过程，得到了换热 器 管子与管板连接接头的残余应力和残余变形。

Automatic Ultrasonic Flaw Detector Used in Tube-to-Tubesheet Weld of Heat Exchangers ; Pipe Spacer

列管式换热器 管子 & 管 板 角焊缝自动超声探伤系统的研制

A Calculating Method of Tube-to-Tubesheet Joints Design for Steam Generator

蒸汽发生器 管子 - 管 板接头设计的计算方法

The detector scans the tube-to-tubesheet weld with the scanning equipment on the control of computer samples the ultrasonic echo processes the data and shows the graphic result .

该系统采用计算机控制扫描机械手扫描 管子 & 管 板 角焊缝，并采集相应的超声回波信号，经过一定的处理后，显示和打印图形化结果。

The Elasto-plastic Analysis of Expanded Tube-to-Tubesheet Joints by FEM and Its Application

胀 管接头的弹塑性有限元分析及其应用

In this paper finite element analysis was performed to investigate the effects of working conditions on the tightness of the hydraulically expanded tube-to-tubesheet joint specifically the effects of pressures and temperatures on the minimum residual contact pressure on the sealing circular-bands .

通过有限元分析研究了操作条件对液压 胀 接接头密封性能的影响，即压力和温度对密封环带上最小残余接触压力的影响。

Numerical simulation of welding residual stress of tube-to-tubesheet joint in heat exchangers

换热器 管子 与 管 板焊接接头残余应力数值模拟

Experiment Study of Strength Expansion for Designing Tube-to-tubesheet Joints of Zr Heat Exchanger

锆换热器 管子 - 管 板强度胀接头的试验研究

The effect of expanding degree on the connection strength of hydraulically expanded and mechanically expanded tube-to-tubesheet joints of heat exchangers was investigated by experiments based on the specimens with seven triangularly arranged holes perforated in tubesheets .

采用按三角形排列的7管孔试件，进行了胀 紧程度对换热器液压胀接和机械 胀 接接头连接强度影响的试验研究。

The aim of the study on hydraulically expanded tube-to-tubesheet joints is to obtain knowledges of the effects of joint geometry materials properties and expansion load on expanded joint tightness and pulling-out strength .

对液压 胀 接 的 理论研究 与实验研究也都 很 活跃，研究的目的是要保证接头的紧密性和拉脱强度。

This work provides a theory reference for optimizing the welding procedure and controling the welding residual stress for tube-to-tubesheet joint .

研究结果为优化 换 热 器 管子 与 管 板的焊接工艺、控制残余应力提供了理论依据。

3-D Elastic and Plastic FEM Analysis of Hydraulically Expanded Tube-to-Tubesheet Joints with Tubesheet Hole Groove

管板孔开槽的液压 胀 接接头三维弹塑性有限元分析

Effects of Working Condition on Tightness of Hydraulically Expanded Tube-to-tubesheet Joints

操作条件对 胀 接接头密封性能的影响

Procedures for welding and expanding of tube-to-tubesheet connections in heat exchangers

换热器 管子 与 管 板的焊胀连接工艺

Radiography Research of Tube-to-tubesheet Welded Joints

换 热 管 - 管 板焊接接头射线照像技术 试验研究

At present tube-to-tubesheet joints are always connected by hydraulic expansion technology for steam generator .

目前，对于蒸汽发生器中 换 热 管 与 管 板连接多采用液压 胀 接的方式。

Structure improvement of tube-to-tubesheet joint of waste heat boiler

废热锅炉 管 板 与 换 热 管接头结构改进