管道焊接不得使用氧乙炔焰焊接。
燃气用聚乙烯管道焊接技术安全规程。
分析了不锈钢管道焊接变形产生的主要原因。
The main causes resulting in welding deformation of stainless pipelines have been analysed.
管道焊接：40%的劳动量和60%的累计劳动量。
在这种情况下，成品管道焊接区域的焊接试验并不是必需的。
In this case, testing of the weld area of the finished pipe is not required.
即使有一个衣衫褴褛削减基地完全符合管道焊接，并准备就绪。
Even with a ragged cut the base fits the pipe perfectly and is ready for welding.
文章介绍福州LNG天然气项目工程概况，L290管道焊接要求。
The article introduces Fuzhou LNG natural gas project engineering situation and welding of L290 pipeline.
单法兰传力接头：该产品适用于一边与法兰连接，一边与管道焊接。
Single Flange Power Delivery Joint: This product is used to connect Flange on the one side and weld with pipe on the other, modulate the product's length in between.
能有效改善管道焊接质量和提高焊接生产率，具有重要的工程应用前景。
It can improve the pipelines welding quality and production efficiency, and it has widely application prospect.
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。
A reasonable selecting of welding methods and applying corresponding welding technology are the keys to ensure the welding quality of long-distance transportation pipeline.
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。
Pipeline inner loop welder is applicable for big-caliber pipeline welding in construction procedure to joint the ends of pipes and fulfill roots welding.
介绍了国内外长输管道焊接施工中常用的几种自动焊接方式，并对其进行了比较。
It is represented to a few automatic welding modes commonly used among welding construction of long distance pipeline both at home and abroad and compared with them.
管道焊接施工管理系统共有九个子系统，其核心子系统分别由数据表和功能模块组成。
The system is composed of 9 subsystems, and its kernel subsystem is respectively composed of data table and function module.
针对管道焊接机器人设计了一个双处理器的参数调节、实时控制功能的交互式控制系统。
A dual processor interactive control system with functions of welding parameter regulation and real-time control is designed and implemented for pipe welding robots.
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。
The design concept, overall configuration and features of pipeline welding management system developed by utilizing computer technology are introduced.
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。
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.
此外，喷瓷管道焊接热影响区的金属基体将由于喷瓷过程中渗入的固溶氮而产生大量微裂纹。
In addition, the metal body within welding heat effect zone will produce a lot of micro-cracks because of infiltration of solid solution nitrogen in course of porcelain spraying.
综述了水下管道焊接技术研究与应用的最新进展，并就水下焊接技术的发展趋势提出了看法。
So the paper summarizes the latest technological progress of pipeline underwater welding and points out its development tendency in the future.
此外，喷瓷管道焊接热影响区的金属基体将由于喷瓷过程中渗入的固溶氮而产生大量微裂纹。
In addition, the metal body within welding heat effect zone will produce a lot of micro-cracks because of infiltra…
结合管道施工，探讨如何通过对不锈钢管道焊接工艺的确定及技术要求，对焊接质量进行有效控制。
Discuss how to control effectively welding quality by confirming stainless pipelines technique and the technique requirement combined with pipeline construction.
结合铝合金管道焊接中常见的缺陷。从选材、清洗、焊接等环节简述了提高铝镁合金的焊接质量控制措施。
This paper, combining with the common defects in Al-Mg alloy welding, proposes measures to improve Al -Mg alloy welding quality from the aspects of material selection, washing and welding steps, etc.
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。
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.
分析钛材管道焊接产生的冷裂纹、气孔、氧化等缺陷的原因和形成机理，提出焊接工艺措施，以确保焊接的质量。
And analyzes the reason and forming mechanism of the defects such as cold crack, air porosity and oxidation etc. proposes the measures of welding process to ensure the welding quality.
实验表明，该系统操作方便，运行可靠，能有效改善管道焊接质量和提高焊接生产率，具有重要的工程应用前景。
The experiment shows that this system is reliable and convenient. It can improve the pipelines welding quality and production efficiency, and it has widely application prospect.
该自动焊接系统在钢制散热器管道焊接生产应用中取得了良好的效果，是一种低成本自动化的T形管焊缝专用焊接设备。
This automatic welding system is suitable for the automatic welding of the T-shape seam and good results have been achieved. It is a low-cost-automatic welding system for T-shaped seam.
从数值模拟入手，采用大型有限元软件A NSYS研究了不同尺寸、不同位置的咬边缺陷对压力管道焊接接头应力集中系数的影响。
This paper researches the effects of undercut defect on stress concentration in welding joint of pressure pipe by means of the finite element method software ANSYS.
结果表明：在役焊接接头残余应力分布规律与常规焊接保持一致，符合管道焊接接头“内凸外凹”的变形机理，但在数值上差别较大。
Results show that distribution regularity of residual stress of in-service keeps coherent with routine welding, which measures up deformation mechanism of welding, but numeric value is different.
焊接缺陷是工业管道系统中最常见的缺陷，而管道系统中由于焊接缺陷引起的事故屡屡发生，因此管道焊接缺陷评定对于管道的安全运行具有重要意义。
As the most common flaws in industrial piping systems, weld flaws frequently lead to accidents. Therefore, assessment of piping with weld flaws is of great significance.
焊接缺陷是工业管道系统中最常见的缺陷，而管道系统中由于焊接缺陷引起的事故屡屡发生，因此管道焊接缺陷评定对于管道的安全运行具有重要意义。
As the most common flaws in industrial piping systems, weld flaws frequently lead to accidents. Therefore, assessment of piping with weld flaws is of great significance.
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