The executive mechanism of Cu-Al pipe butt welder, based on above, was designed, including its air system and mating clamper.
在此基础上，设计了铜铝管对焊机的执行机构，包括其气动系统和配套夹具。
The executive mechanism of Cu-Al pipe butt welder, based on above, was designed, including its air system and mating clamper.
在分析了铜铝管焊接工艺过程的基础上，重点论述了铜铝管对焊机执行系统和控制系统的设计。
In practice, the executive mechanism of PLC controlled Cu-Al pipe butt welder meets the expectation for high quality Cu-Al welding completely.
实践证明，PL C控制型铜铝管对焊机的执行机构完全满足铜铝管优质焊接的要求。
The key of Cu-Al pipe butt welding is to control the welding parameters. In the original control system, all welding parameters were controlled by time-relays.
铜铝管焊接的关键是对焊接参数的控制，原控制系统采用时间继电器控制焊接参数。
This paper, based on analyzing the process of Cu-Al pipe butt welding, discussed the design of the executive system and control system for PLC controlled Cu-Al pipe butt welder.
在分析了铜铝管焊接工艺过程的基础上，重点论述了铜铝管对焊机执行系统和控制系统的设计。
This standard covers the procedures for the heat joining of pipe and fittings made from polyolefin materials utilizing either the socket or butt fusion methods.
这个标准涵盖采用承插热熔和对焊热熔方法对聚烯烃材料管道和连接件进行热连接的程序。
Unless otherwise specified, all Pacific valves will be supplied with butt weld ends conforming to ANSI B16.25 either Fig. 2(b) or 3(b) depending on the nominal pipe wall thickness of the valve wall.
除非另外指定，所有美国太平洋阀门都配置符合ANSI B16.25标准的对焊连接端口，并根据阀门壁厚和管道壁厚确定是属于型号2（b）或3（b）。
When ordering Butt Welding End valves, specify schedule of pipe end and give complete data concerning style, figure number and contour of weld end.
在订购对焊连接阀门时，要指定管道连接端口的管壁厚度，并且提供有关类型、型号和焊接端等高线等参数。
When ordering other than standard Butt Welding end valves, specify schedule of pipe end and give complete data concerning style, figure number and contour of weld end.
如果订购其它标准的对焊连接的阀门，请告知管道管壁厚度标准，以及种类、型号和焊接端轮廓等参数。
Having been practiced for several years, a new butt method for spiral welded pipe, the two spots tack-weld butt was made out.
通过几年来的实践，摸索总结出了一种螺旋焊管对接新方法——两点点固对接法。
A reliable way to improve the quality of spiral pipe was the substitution of high frequency butt welding for HF lap welding.
高频对焊代替高频搭焊是提高中直径螺旋焊管质量的可靠途径。
Induction pressure welding is often used to manufacture the butt joints of steam pipe of power plant.
感应压力焊常用于生产电站蒸汽管对接接头； 但在抽检样品时接头断口上有时存在所谓的“白斑”组织。
Therefore the general construction process scheme is worked out as follows: open trench drainage, work site dried in the sun, conventional butt welding, and pipe laid down into trench.
经过调研和反复现场勘察，确定的总体施工方案为：挖明沟排水，作业带晾晒，正常组对焊接，沉管下沟。
Parameters of butt fusion welding of plastic pressure-pipe are different for varying pipe diameters and ambient conditions, and it is also affected by personal factor.
塑料压力管道热熔对接焊的工艺参数随管道尺寸和环境条件的不同而不同，同时还受人为因素的影响。
The whole procedure includes preparing steel strip and butt welding, forming and fixed position welding, pipe output and cutting, and final submerged arc welding.
其整个工艺包括带钢准备和对接、成型及定位焊、管子输出和切割和埋弧终焊。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
本文利用ADINA非线性分析有限元程序，对低碳钢管道环焊缝接头焊接残余应力进行计算。
The discussion involves such aspects as the cause of strip folding occurring in butt-welding process of spiral weld pipe, negative influence by such failure on pipe quality and preventive actions.
介绍了螺旋焊管生产中对头焊带钢的硬弯现象发生原因，对钢管质量的危害及防止措施。
Germany RBT import external thread needle valve can be equipped with stainless steel welded pipe, and pipeline butt welding connection, but also through the outer nut removing the valve.
品牌：进口外螺纹针型阀可配带不锈钢焊接管，能与管道直接对焊连接，也可通过外螺母拆卸阀门。
Temperature and residual stress fields of industrial pipe discontinuous and continuous butt welding was simulated by ABAQUS.
应用大型有限元分析软件ABAQUS，对工业管道间断焊与连续焊的温度场和残余应力场进行数值模拟。
A control system of a butt fusion welding machine for PE pipe is introduced in this paper.
介绍了一种聚乙烯管道热熔焊机控制系统。
The present invention is the production process of steel flange blank, especially of flat flange, butt welded flange and prestressed pipe pile end plate flange.
一种钢法兰毛坯加工工艺，尤其是一种平法兰、对焊法兰、预应力管桩端板法兰毛坯加工工艺。
The present invention is the production process of steel flange blank, especially of flat flange, butt welded flange and prestressed pipe pile end plate flange.
一种钢法兰毛坯加工工艺，尤其是一种平法兰、对焊法兰、预应力管桩端板法兰毛坯加工工艺。
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