The thermal boundary condition of the cast iron cooling stave with surface alloyed steel pipe was used for numerical simulation of temperature field and commercial software ANSYS and the method of coupling heat-structure were used to calculate thermal deformation of steel pipe at high temperature, and analyze the influence of air gap and thermal deformation on the life of cooling stave. The optimal size of air gap and hot load to guarantee long life of cast iron cooling stave were obtained.
根据合金化管铸铁冷却壁热态试验数据确定了合金化管铸铁冷却壁温度场数值模拟的边界条件，利用ANSYS软件、采用热-结构耦合的方法计算了高温状态下合金化管铸铁冷却壁内钢质冷却水管的变形，分析了气隙层和水管热变形对合金化管铸铁冷却壁寿命的影响，得出保证合金化管铸铁冷却壁长寿的最佳气隙层厚度和相应的最佳使用热负荷。
The program is to process all kinds of oil well pipe thread and casing coupling.
项目内容：该项目是加工各类油井管螺纹、套管接箍的机械加工项目。
The main products of our company are casing coupling, tubing coupling, fittings of casing and other oil pipe fittings.
公司拥有各种先进的金属切削设备，完善的检测手段，为生产一流的产品提供了有力的保障。
Processing company main products are: a variety of steel grade, multi-threaded type of coupling casing oil, petroleum oil pipe coupling, oil casing thread processing.
公司加工的主要产品为：多种钢级、多种螺纹类型的石油套管接箍、石油油管接箍、石油套管的螺纹加工。
Two or several gear motors can be combined to flow divider after being connected by coupling. It guarantees synchronous operation and accuracy of power element like cylinder. Its principle is that hydraulic liquid from the pipe is input into the inlet port and the same amount liquid is accuracy of flow divider is up to accuracy of gears and relative spare parts.
两个或几个马达通过联轴器联接后组成分流马达，它可以保证执行元件同步运行，并获得高的同步精度，它的原因是：从进油口输入来自管路的液压油，通过联接在一个轴上的相同规格尺寸的齿轮副的旋转运动分配给出油口相同的流量，显而易见，分流马达的精度取决于齿轮副以及与其相配零件的精度。
Aerospace series - Pipe coupling, welded, in heat resisting steel - Elbows 90 o - Inch series.
NF L43-635-2003 航空航天系列。耐热钢制焊接管接头。90度弯头。
Must not be smaller than the pipe size of the relief valve or have any reducing coupling installed in the discharge line.
不能小于安全阀的管道口径，也不能在排泄管上安装任何缩径管接头。
Considering the peculiarity of tee pipe coupling, the are well designed for general horizontal winding machine.
针对通用的卧式多坐标纤维缠绕机，分别设计了三通管主管和支管的机器路径。
Reduced tee pipe coupling
异径。。。T 形管接管
Our main products are: elbow, month curved, three-, four-way, pipe coupling, pipe cap, oil-term, outside the wire, make up the core, plug and so on.
公司主要产品有：弯头、月弯、三通、四通、管箍、管帽、油任、外丝、补芯、堵头等。
The VCL method and the displacement method are used to calculate the Stress Intensity Factors of semi-elliptical surface crack at the root of pipe screws, on the basis of which a simplified calculating model for screws contact is put forward so as to analyse the fracture intensity for oil drill pipe screw coupling. For the semi-elliptical surface crack with different shape and deep ratio at the root of female and male screws and the corner of male flange, the SIF has been studied systemically under inter-pressure, tension, bend and torsion loads and the approximate formulas encluding the structure parameters of oil drill pipe screw coupling, deep ratio and the shape parameters of surface crack are developed.
对工程实际中的多种石油钻杆接头螺纹连接件，就公螺纹齿根、母螺纹齿根、公螺纹台阶转角处存在的不同形状、不同厚度比的半椭圆表面裂纹，在拉伸、内压、弯曲、扭转多种载荷作用下的应力强度因子作了系统研究，在大量有限元计算基础上，建立了包含接头结构参数、裂纹形状、厚度比在内的近似计算公式。
The outside steel lagging fastens both ends of the pipe and wrap the gasket ring to realize the tight coupling between pipes.
外钢套扣住钢管两端并包裹密封圈。实现钢管密封连接。
A pipe coupling threaded on both ends.
把管切断或拴起的夹子。
A pipe coupling threaded on both ends. Since last spring, Jeff Cross, 29, had been tormented by night sweats, a side effect of the rare genetic illness that threatened to kill him unless he got a new liver.
从去年春天起，29岁的杰夫·克罗斯天天被盗汗所困扰，这源于一种罕见的基因遗传病变，除非他获得一个新的肝脏，否则疾病将威胁他的生命。
The saver is equipped with a threaded side coupling. Operator can connect the coupling to the shaker pit with a hose. When the drill pipe is disconnected, the fluid will flow into the pit directly.
防喷盒下端焊装了带螺纹的旁通接头，使用时用软管将该接头与泥浆池相连，这样当钻杆被卸开时，其中的流体就会直接流入泥浆池。
Aerospace series - Pipe coupling 8 o30` in titanium alloy - Tees with thrust wire nut on run.
航空航天系列。8°30`钛合金管联接件。端部带推进线螺母的三通
The device of the present invention can inhibit higher-order mode type oscillation and reduce impure spectrum level for the multiple injection speed regulating pipe with double-clearance coupling cavity output circuit.
本发明对具有双间隙耦合腔输出电路的多注速调管能够抑制高次模式振荡，降低杂谱电平。
The conveying medium in pipe has great effect on buried pipeline`s damage, its flow pattern, temperature, pressure change, velocity, all of these can influence the shell of pipe and its stress distribution. So it is very important to analyze the fluid-pipe coupling.
管道内部的输送介质对管道破坏影响也很大，管内介质的流态、温度、压力变化、流速等对管壁变形和应力分布都有影响，故管道内流体和管道间的耦合分析对地下管道破坏分析很重要。
This is actually a coupling for 1/2 copper plumbing pipe!
其实 ，这是一个耦合1/2铜水暖管件！
A numerical method for contact mechanics and fracture analysis for oil drill pipe screw coupling have been systemically studied in a deepgoing way in this thesis.
本文就接触力学的数值计算方法，石油钻杆接头螺纹齿的断裂计算作了深入、细致、系统的研究，主要工作包括以下几方面。