Poor sub-sea welding is avoided by using bolt connection; it can be directly used for sub-sea pipeline welding.
由于采用螺栓联接，避免了焊接质量差的水下焊接，可直接用于海底管道维修。
The design concept, overall configuration and features of pipeline welding management system developed by utilizing computer technology are introduced.
介绍了利用计算机技术开发管道焊接施工管理系统的设计思想、系统的总体构成和特点。
Pipeline inner loop welder is applicable for big-caliber pipeline welding in construction procedure to joint the ends of pipes and fulfill roots welding.
管道全位置自动内焊机适用于大口径管道焊接施工过程中组对管口、完成根焊。
It is the important measure which vigorously promote and apply pipeline all-position automatic welding technology to realize the highly efficiency of pipeline welding.
大力推广使用管道全位置自动焊接技术是实施管道高效焊接的重要措施之一。
With bright and smooth surface, good security features, our product are lightweight, solid and widely used in gas, natural gas, chemical, water and other liquids pipeline welding.
产品轻盈坚固，表面光洁亮丽，安全性能好，广泛利用于燃气，天然气，化工，排水等其他液体管道的焊接。
To solve the problem of control to the welding torch 's gesture of pipeline welding robot, an intelligent control system of the torch' s gesture based on the expert system is presented.
针对管道焊接机器人焊枪姿态控制问题，提出了一种基于专家系统的焊枪姿态智能控制系统。
The purpose of the pipeline pigging is clear in pipe welding of mud, welding slags sundry, for pipeline caliper and normal operation of pipeline to provide security.
管线清管的目的是清除焊接时留在管道内的泥沙、焊渣等杂物，为管线测径和管线正常运行提供保障。
The effects of tempering weld-pass treatment on toughness of HAZ of X80 pipeline steel were studied by the technique of welding thermal simulation and the method of microscope analysis.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
The special requirement for the welding of X80 pipeline steel was described also.
还简述了X80管线钢对焊接的特殊要求。
Welding property is an important index to weigh the property of pipeline steel.
焊接性能是衡量管线钢性能的一项重要指标。
Pipeline rupture resulted from welding defects in Daqing-Tieling oil transport Pipeline greatly affected oil transport production.
大庆至铁岭输油管道由于焊接缺陷，导致管道发生破裂，严重影响了输油生产。
Welding seam should be numbered according to pipeline medium set, in principle, main pipe prior to branch pipe.
焊缝编号应根据管线介质流向进行编号，原则上应先主管后支管。
Proved by experiment, the welding robot can adapt the desire of pipeline girth-welding with complex landform.
实验表明这种焊接机器人可以适应复杂地形处油气管道的全位置环形焊接。
This paper introduces the rehabilitation procedure of PE lined pipeline and stresses on quality control requirement of PE pipe heat melting welding.
文章介绍了内衬PE管修复技术的施工程序，强调了PE管道热熔焊接质量控制要求。
Proved by experiment, the measurement and control system runs well, and can adapt the desire of pipeline girth-welding with complex landform.
实验表明该，该测控系统运行稳定可靠，可以适应复杂地形处油气管道的全位置环形焊接。
Based on multi microcomputer, the automatic control system of pipeline all position welding process is developed. The system structure, working principle and software design are described.
建立了基于多微处理器的管道全位置焊接自动控制系统，描述了其系统结构、工作原理和软件设计。
A study was made of the welding procedure for X70-L245 butt joint of pipeline steel.
针对不同强度级别的管线钢x 70和L245对接的焊接工艺进行了研究。
Also, the application of the new machine in pipeline root welding is introduced.
同时也介绍了该设备在管道根焊和高效焊接方面的应用。
Thermal simulating technology was adopted to study grain size and the precipitates distribution of CGHAZ for X80 pipeline steel with different welding condition.
采用热模拟技术研究了X80管线钢在不同焊接热循环条件下晶粒及第二相粒子的变化。
The deformability of under-matched X80 grade pipeline steel welding joint was studied through Finite Element Method.
采用有限元法对低匹配条件下x 80钢级管线钢焊接接头的变形能力进行了研究。
This article introduces 4 methods in order to improve the welding quality aiming at production of certain pipeline, and gives the details of practical plan.
介绍了在某管线钢管生产中，为了提高焊接质量而采取的4种措施，并详细说明了具体的实施方法。
Relationship and importance between pipeline automatic welding in all positions and the types of bevel are analyzed in the view of welding quality, efficiency and economy character.
从焊接质量、焊接效率和焊接经济性等方面分析了管道全位置自动焊与坡口型式的关系和重要性。
The welding preparation of city gas pipeline, welding technological requirements and control for factors effecting welding quality are analyzed.
分析了城市燃气管道的焊前准备、焊接工艺要求以及对影响焊接质量诸因素的控制。
Aimming at the safety of welding of long-distance pipeline, this paper analyzes the hazardous substance of welding process, and puts forward the relevant precautionary measures.
针对长输管道焊接过程出现的安全问题，分析了焊接过程中的有害因素，并就相关有害因素提出了防范措施。
As an important procedure of pipeline construction, the welding quality will directly influence the pipeline's service life and safety.
焊接作为管道施工中的一个重要工序，其质量的好坏直接影响管道的寿命和输送油气的安全。
Basing on SYSWELD software, stress of in-service welding joint of X70 pipeline steel has been simulated, and residual stress of in-service was compared with routine welding.
采用SYSWELD焊接模拟软件对X70级管道在役焊接接头应力进行模拟，并将在役焊接残余应力与常规焊接进行对比。
In service pipeline non-stop transmission welding is a method to maintenance and rebuild pipeline under welding pipe of certain transmission amount, flow speed, pressure status.
在役管道不停输焊接是在一定的输量、流速、压力的状态下焊接管件，对管道进行维修、改造的一种方法。
The key in long-distance pipeline construction is welding process, long-distance pipeline construction quality is inextricably linked with quality control of welding process.
在长输管道工程施工中的关键是焊接过程，长输管道工程的施工质量好坏与焊接过程的质量控制是密不可分。
Owing to heat action during X80 pipeline steel welding the organization and performance of heat affected zone will change considerably in particular of coarse grain heat affected zone (CGHAZ).
X80管线钢在焊接过程中，热影响区由于受到焊接过程热的作用，其组织和性能会发生较大的变化，尤其是粗晶热影响区的组织和性能变化最大。
A reasonable selecting of welding methods and applying corresponding welding technology are the keys to ensure the welding quality of long-distance transportation pipeline.
合理的选择焊接方法和应用相应的焊接技术是保证长输管道焊接质量的关键。
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