The distinguishing features of welding and control method of welding deformation for welding of H section steel are introduced . The welding condition of automatic submerged arc welding with flux backing is determined by the test of welding technology .

介绍了H型钢的焊接特点及焊接变形的控制方法，并通过焊接工艺试验确定了带焊剂 垫埋弧自动 焊的焊接工艺参数。

One side welding based on stainless steels was performed by using the above self-made metal cored wire and ceramic backing .

对研制的 埋 弧焊用GDMA308金属芯焊丝配合陶瓷 衬垫进行了 单面 焊 双面 成形 的 试验研究。

The small diameter steel pipe was welded by the technique of the full circumference pulse TIG welding using the procedure of the backing TIG welding and filler rod TIG welding . The paper analyzed the weld seam structures of backing welding and each filler rod welding .

采用全位置脉冲TIG 焊技术对小口径钢管环缝进行 焊接，焊接采用TIG焊 打底+TIG填丝的多层焊工艺，分析了打底焊及每层填丝焊接完成后的 打底层焊缝组织。

Study on ductile fracture behavior of welded joint of one side welding with ceramic backing

陶瓷 衬垫单面 焊接接头的韧性断裂行为研究

Cause Study of Porosities Formation in Semiautomatic CO_2 Arc Welding by One Side with Ceramic Backing Strip PROTECTION OF MARINE SHIPS : STATE OF THE ART IN CHINA

船舶 焊接CO2气体保护 单面焊气孔成因探讨

The current problems are lacking in the mechanism and numerical model of laser welding the pre-alloyed powder of backing layer and the online quality test technique .

对激光 焊接 过程的机理和数值模型研究、 过渡层预合金粉末以及在线质量检测技术研究不够。

In this weldability test the weld defect is eliminated and the welding quality and efficiency are improved by adjusting welding parameter optimizing the groove size and enhancing the fabricating precision of the backing and the inner clapboard .

通过焊接熔透性工艺试验、调控 焊接 工艺参数、优选装配坡口尺寸、提高 衬条及隔板加工精度，保证了电渣焊质量和焊接效率的提高。

There are a lot of inclusions in weld bead by CO2 arc shielded welding using flux cored wire and ceramic backing .

药芯焊丝陶质 衬垫CO2半 自动单面 焊焊缝中的夹杂物偏多。

Welding efficiency is raised greatly by using submerged arc welding technology and erecting reliable flux backing simply .

采用带焊剂 垫埋弧 自动 焊工艺可大大提高H型钢的焊接工作效率。

In the pulse submerged arc welding of 35mm plate the processes of backing weld and back gouging are removed the filling area is reduced by 17.7 % so the comprehensive efficiency increases by about 50 % .

35mm平板对接埋弧焊 焊接中，通过工艺改造免除了 打底和清根工序，减小填充面积17.7%，综合焊接效率提高约50%。

Through the welding technology experiment about rear forcible figuration with ceramic backing lux-cored wire and mixed gas shielding the influences of main normative parameters and technical factors on rear figuration were analyzed .

通过对陶瓷 衬垫药芯焊丝混合气体保护背面强制成形的 焊接工艺试验，分析了主要规范参数和工艺因素对背面成形的影响。

Welding methods and technology of narrow gap quirk backing weld were discussed . Indirect quirk backing weld using manual hydrogen arc welding is considered as the best result .

讨论了窄间隙深槽 打底焊 焊接方法和工艺，认为用手工氩弧焊进行单面深槽打底焊效果最好。

Study on the one-side CO_2 gas shielding arc welding technology for ceramic backing

陶瓷 衬垫CO2气体保护单面 焊接工艺的研究

The procedure parameters to keep smooth bead on both sides with single side welding for the sheet groove size of backing assembly gap traverse tolerance between wire and workpiece are all determined by experiment .

通过工艺试验，确定了保证薄板单面 焊双面成形、光滑均匀的工艺参数范围、 背面 垫板凹槽尺寸、工件装配间隙、焊丝和工件的横向偏差量等。

It is needed to plaster the sand mould that has a certain stickiness and humidity on one groove face before welding when it has been dried up slightly the welding of the backing can be started on another groove face .

焊前只需用具有一定粘度的湿泥沙抹平背面的坡口，稍经干燥成形后即可在正面 焊接第1道 打底焊道。

Thus proposed one-side welding with back formation of robot backing welding is the key procedures of the entire welding process .

由此提出机器人单面 焊 双面成形 焊接 技术，其中 打底焊是整个焊接过程的最关键步骤。

Experimental study on manual one-side welding ceramic backing

手工单面 焊陶瓷 衬垫试验研究

First the shaping theory of one-sided welding and ceramic backing used for one-sided welding was introduced as well as the characteristic of ceramic backings .

本文首先介绍了单面 焊的成型理论以及埋弧单面焊用 衬垫及其特点。

In order to improve the welding productive and short the period efficiency of ship-building the high efficient welding technique has been used in many domestic shipyards . FCB is short for the high efficient technique of flux and copper backing with one-side welding both-side forming .

为了提高造船的生产效率，缩短造船周期，国内许多大型造船厂采用焊剂铜 衬垫单面焊双面成形的高效 焊接方法，简称FCB法。

Research on welding technology of sand mould backing

背 衬砂 垫 焊接工艺的研究