本研究工作对水下焊接电弧物理及焊接冶金的研究有参考价值。
This research is significant and valuable to the study of underwater welding arc physics.
本研究工作对水下焊接电弧物理及焊接冶金的研究有参考价值。
The works is significant and valuable to the study of underwater welding arc physics and welding metallurgic.
本文就当前世界先进的几项水下焊接技术分别作了概括性的介绍。
In this paper some advanced underwater welding techniques in the world are briefly reviewed.
根据药芯焊丝水下焊接的要求，研制了一套水下焊接电弧控制系统。
At the special request of the flux-cored wire welding underwater, the welding arc control system is developed.
搭建了基于高速旋转电弧传感器的水下焊接焊枪偏差识别的实验系统。
An experimental system for underwater welding identification of welding torch offset based on high speed rotational arc sensor was established.
高压干法水下焊接以其焊接质量高、接头性能好等优点越来越受到重视。
Because it has some virtues such as high welding quality and good joint, hyperbaric underwater welding has got more and more attention.
本文利用等离子体光谱诊断法对水下焊接电弧温度进行了比较系统的研究。
In this paper the temperature of underwater welding arc is investigated systematically by means of spectral diagnostics of plasma.
根据水下焊接的特殊情况，设计了一种带修正函数的规则自调整模糊控制器。
In view of the special circumstances of the flux-cored underwater welding, a rule self-tuning fuzzy controller with modification function is designed here.
焊接实验证明，所设计的局部干法焊旋转电弧传感器改善了水下焊接的质量。
Welding experiments prove that the design of local dry welding rotating arc sensor can improve welding quality.
介绍了大口径过河钢管接口焊缝爆漏现象，以及湿法和干法水下焊接修复技术。
Both wet and dry underwater welding operations are presented to repair the burst at the welding seam of large size crossing steel pipe.
介绍了大口径过河钢管接口焊缝爆漏现象，以及湿法和干法水下焊接修复技术。
The text introduces the welding leak phenomena of large caliber pipe across river, and wet or dry welding repair technology below water.
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。
Poor sub-sea welding is avoided by using bolt connection; it can be directly used for sub-sea pipeline welding.
本发明的目的是为解决现有水下焊接要在水下造成无水焊接区实现难度较大；
The invention aims at solving the difficulty of realizing an underwater water-free welding area in existing underwater welding;
在水下焊接过程中，脉冲电源输出高电平时，停止送丝，电弧稳定燃烧并形成熔滴；
During the welding process, when underwater welding power outputs high level, the system stops feeding wires and wires burn upwards with forming molten droplets.
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.
采用左右区间积分进行焊缝偏差识别，取得较高的识别精度，为水下焊接焊缝跟踪奠定了基础。
Finally, left-right integral method was adopted to identify the welding torch offset. Obtained quite high recognition accuracy, builted a foundation for underwater welding seam tracking.
研究了一种新型的水下焊接系统。系统中弧焊电源输出阶梯型的外特性，送丝系统采用脉动送丝方式。
A new type of underwater welding system is studied, which includes an oscillating wire feed system and a welding power source with staircase external characteristic.
焊接能在室外或室内，水下和外层空间进行。
Welding can be done any where-outdoors or indoors, under water and in outer space.
简要介绍了由美国L - TEC焊接与切割成套设备公司生产的配有2000系列数控系统的CM- 360型水下等离子切割机的性能与应用。
This paper introduces the performance and application of CM-360 underwater plasma cutting machine with 2000 series nc system manufactured in L-TEC company.
研制了一套水下高压焊接试验装置，该装置由配气储罐、高压试验舱、气体环境检验舱、监控系统等部分组成。
A tester is developed for the hyperbaric welding of underwater pipeline. It consists of a regulating gas storage, a hyperbaric test tank, a verifying-gas tank, and a control and monitor system.
通过分析焊接电流的变化规律得到偏差信息从而实现水下焊缝跟踪。
By analyzing the variation of welding current, offset information obtained in order to achieve underwater seam tracking.
研究了两种能应用于水下湿法焊接的缓冷方法。
Two methods for reducing cooling rate during underwater wet welding are studied.
在斜线、折线和曲线三种不同形状待焊焊缝的跟踪试验中，系统都能满足药芯焊丝水下自动焊接的要求。
In the tracking trials of sidelong, reflex and curve weld line, the system can all meet the demand of the tracking precision.
一种连接管道（3）以制造水下管路（2）的方法，其中两个相邻管道（3） 相互面对、沿着轴（A）对准的自由端（15）被焊接在一起，以限定一段修剪 区域（18）；
A method of joining pipes (3) to produce underwater pipelines (2), wherein the facing free ends (15) of two adjacent pipes (3), aligned along an axis (A), are welded to define a cutback (18);
试验表明，它用于水下破解冰冻物品、高分子板材焊接和瓶装液体除气方面是可行的。
The applied tests in water by the lance at ice-out and-breaking, plastics-welding and gas-freeing of liquid demonstrated that the cavitation field lance is available for above processes.
试验表明，它用于水下破解冰冻物品、高分子板材焊接和瓶装液体除气方面是可行的。
The applied tests in water by the lance at ice-out and-breaking, plastics-welding and gas-freeing of liquid demonstrated that the cavitation field lance is available for above processes.
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