立焊

神经网络在铝合金穿孔型等离子弧立焊中的应用

Application of Neural Network in Aluminum Keyhole Plasma Welding in Vertical Position

小直径低温铝合金管道双人双面立焊工艺

Double-side , two-men vertical welding procedures for small-diameter cryogenic aluminum alloy pipelines

锅炉鳍片管的CO2向下立焊

Vertical down co_2 welding for fin tubes of boiler

铝合金穿孔型等离子弧立焊的BP神经网络预测模型

BP Neural Network Predicting Model for Aluminium Alloy Keyhole Plasma Arc Welding in Vertical Position

TIG熔修提高平台立焊接头疲劳强度及实船应用

Increase of the fatigue strength in a vertical weld joint of offshore drilling plateform and actual application

目前铝制空分设备的纵焊缝大都是采用双人双面TIG立焊。

Nowadays the method of double - side TIG erect welding is adopted in the air - separate equipments largely .

钨极氩弧焊（TIG）修整虽能改善焊缝形状，但弧坑处易于产生裂纹，疲劳寿命降低；利用最小二乘法给出立焊时疲劳寿命的估算式及S&N曲线。

Where as TIG dressing can result in crater cracks and therefore shorten the fatigue lifetime . The S & N curve and life estimation equation under vertical weld after TIG dressing are presented by least square method .

针对空分设备的特点以及在手工焊接铝合金过程中遇到的技术难点，设计自动TIG立焊微机控制系统的目的在于提高焊接质量，改善工人劳动条件，提高劳动生产率，大大提高经济效益。

According to the practical situation of welding for air-separate equipments and some difficults in technology , this paper introduces the computer control system for double-side automatic TIG vertical position welding , which can improve the welding quality and working condition , enhance the economic benefit .

铝合金穿孔型等离子弧立焊的遗传算法设计

Design of Genetic Algorithm about Aluminum Keyhole PAW in Vertical Position

大直径厚壁管气电立焊焊接技术研究

Study of electrogas arc welding technique for major diameter thick-walled pipe

解决立焊工艺中由于重力等导致的问题；

Solved the existing problems of erect welding such as gravity ;

大厚度铝合金变极性等离子弧穿孔立焊技术

Variable polarity plasma arc welding process for thick aluminum alloy

复合控制强迫成形自动立焊系统的研制

The Development of Enclosed Vertical - Automatic Welding System with Complex Control

变极性等离子弧立焊穿孔熔池的稳定建立

Establishment of stable keyhole pool during variable polarity vertical-up plasma arc welding process

上述规律为铝台金方波交流等离子弧立焊过程焊接质量控制提供了依据。

These laws provide a hasis for quality control of aluminum alloy vertical-up PAW .

低合金钢板对接立焊单面焊双面成形工艺研究

Forming Process Research on Joint Vertical Welding from Single-face to Double-face of Low-alloy Steel Plate

该项研究必将促进高效自动立焊的应用和发展。

This research work will promote the application and development of the high efficient vertical welding .

气电立焊工艺在5万m~3油罐组焊中的应用

Applications of Technologies of Vertical Position Gas-electric Welding at Oil Tank of Fifty Thousand Cube Meter

再把炉子转回直立位置。气电立焊在高炉炉壳立缝焊接的应用

Then the converter is put upright again . Application of the electrogas welding for the blast furnace jacket

利用最小二乘法给出立焊时疲劳寿命的估算式及S&N曲线。

The S & N curve and life estimation equation under vertical weld after TIG dressing are presented by least square method .

气电立焊在高炉炉壳立缝焊接的应用外套与输出轴的径向有一个插销孔。

Application of the electrogas welding for the blast furnace jacket There is a pin hole between outside shell and output axis .

气电立焊是由普通熔化极气体保护焊和电渣焊发展而形成的一种熔化极气体保护电弧焊方法。

Electrogas welding is development from a common MIG welding and electroslag welding , and which is one of MIG arc welding methods .

目前气电立焊焊接材料主要采用（金属芯）药芯焊丝，其特点是：生产效率高、成本低。

Now , materials of the electrogas welding are mainly ( metal core ) flux-cored wire , its features are : high efficiency and low cost .

研究结果表明：应用遗传算法确定铝合金穿孔型等离子弧立焊的近似最优化工艺参数是一种有效的方法。

The study result shows that determining the near-optimal process parameters of aluminum keyhole plasma welding in vertical position by simple genetic algorithm is an efficient way .

根据该储罐对所用高强度钢板的特殊技术要求，进行了手工电弧焊、埋弧自动焊、气电立焊焊接试验，确定出合适的焊接工艺。

Manual arc welding , automatic submerged arc welding and the electrogas vertical welding methods have been tested according to the special technique requirement and the appropriate welding process determined .

气电立焊属于窄间隙焊，与其它窄间隙焊的主要区别是焊缝一次成型，而不是多道多层焊。

Electrogas welding for vertical is a narrow-gap welding , which is mainly different from other narrow-gap welding , the mainly difference is that a shape rather than the multi-channel multi-pass welding .

本文采用C++语言设计适用于铝合金穿孔型等离子弧立焊的基本遗传算法，用来确定焊接工艺参数的近似最优化配置。

Simple genetic algorithm ( SGA ) was designed by using C + + for aluminum keyhole PAW in vertical position , which is used to decide near-optimal settings of the welding process parameters .

经初步测算，气电立焊的焊接速度约是药芯焊丝自保护自动立焊的1.5倍，约是手工电弧焊的15倍，提高了焊接效率。

After measuring calculates , the welding speed of vertical position gas-electric welding is 1.5 times of core welding wire protective automatic vertical position welding & 15 times of handwork electric arc welding . It has raised welding efficiency .

对纤维素型全位置立向下焊高效电焊条的药皮成分进行了研究。

The coating ingredient of whole type of electrode was studied .

浅谈混合型立向下焊焊接工艺的应用

Discussion on Application of Mixing Type Vertical Downwards Welding Technology