Through the chemical composition analysis, metallographical observation, Manson-Haferd parameter extrapolation and thermal-stress calculation, it is found that the failure of conic nozzle was caused mainly by the thermal stress.
通过对一失效的下集气锥形管的金相宏微观检查、Manson Haferd参数估算锥形接管的持久寿命以及热应力的计算 ,发现锥形接管的失效原因主要是由温差应力所导致。
Analysis of forming process and design of die for deep taper pipe with hole;
带孔深锥形管成形工艺分析及模具设计
Based on the analysis of deformation mechanism and feasibility of tapered tubes via dieless drawing process,the calculation method of dieless drawing speed and hot/cooling source moving speed during tube forming is proposed theoretically with a relevant mathematical model given.
在分析锥形管无模拉伸的变形机制及可行性的基础上,提出了锥形管无模拉伸速度或冷热源移动速度的理论计算方法,并给出了相应的数学模型。
Two-dimensional numerical simulation of the viscous compressible oscillating flow was carried out for the uniform cross-section and tapered pulse tubes by using a compressible SIMPLEC algorithm code developed by the authors.
本文开发了二维可压缩交变流动的SIMPLEC计算程序,对渐缩型锥形脉管制冷机进行了二维数值研究,研究了锥度对脉管制冷机性能的影响。
In this paper, two models were introduced with the governing equations to simulate two kinds of tapered pulse tube cryocoolers.
研究表明：锥形脉管制冷机存在一最佳锥度；在最佳锥度下，采用锥形脉管制冷机对改善制冷机的性能，进一步降低制冷温度、提高相同制冷温度下的制冷量是有利的。
tapered tube rotameter
锥形管柱式旋转流量计
aeronautical national taper pipe threads
国际航空用锥形管螺纹标准
tapered tube and disc type flow meter
锥形管圆盘式浮子流量计
Mathematical Model to Schedule Dieless Drawing Speed for Tapered Tubes
确定锥形管无模拉伸速度制度的数学模型
Numerical analysis on flow property of gel propellants in tapered round pipes
凝胶推进剂锥形管道流动特性数值分析
Robust Design Method of the Sealing Pipeline Joint Structure with Double-cone Pipe Union;
双锥形管接头密封管路联接结构的稳健设计方法
Design of cone-head & cone-hole pipeline cone sealing structure based on ANSYS
基于ANSYS的锥头-锥孔管路锥形密封结构分析
unibolt coupling
带锥形台肩的单螺栓管子联接件
Analysis of Parameters of Pipeline Cone Sealing Structures Based on ANSYS
基于ANSYS的管路锥形密封结构参数分析
Study on Near-wall Characteristics of the Internal Turbulence in a Conical Diffuser
对锥形渐扩管内紊流近壁特性的研究
THE INSTALLATION OF CONE-SHAPED PUNCH FOR WSP250 HOT-ROLLED
WSP250热轧钢管工程锥形穿孔机的安装
The Optimization and Experimental Research of Valveless Piezoelectric Pump with Changeable Nozzle/diffuser Elements;
连续可变锥角的锥形流管无阀压电泵的优化与实验研究
Thickness distribution at the deforming zone of aluminum tube in mechanical expanding
铝管锥形模机械扩径变形区壁厚分布规律
Dieless Drawing Technique for Making Tapered Pipe With Square Cross Section
一种新型的锥形方管无模拉伸成形工艺
It can be used for tubing fracturing, annulus fracturing and combination fracturing with casing head and fittings.
可配锥形和直座型油管悬挂器，悬挂不同的油管。
special taper thread tap for gas cylinder
气瓶专用锥形螺纹丝锥
Large Bore Pipe Gas Flow Measurement Using Cone Flowmeter
大口径管道气体流量测量采用锥形流量计
Finite Element Simulation of Hot Extrusion for TA2 Tubing by Flat-cone Die
TA2管材平锥模热挤压成形过程的有限元模拟