backing weld

Indirect Quirk Backing Weld of Thick-walled Vessel

厚壁容器的单面深槽打底焊

The progress of the backing weld technology for stainless steel tubes is reviewed.

综述了不锈钢管打底焊接技术的进展,指出了各种方法的特点及应用场合.

in ship construction, the one side backing weld using flux-cored wires and ceramic backings has no operational sequences such as, the gouging of the opposite groove, sanding, segmentation keeling over, etc, which greatly improves shipbuilding efficiency.

在船舶建造中，药芯焊丝陶瓷衬垫单面打底焊可免除反面坡口气刨、打磨和分段翻身等工序，极大地提高了造船效率。

Investigation into Backing Weld Procedure Technique of All-position Narrow Gap and Thick-walled Pipe Welding

管道全位置焊接打底焊工艺研究

Progress in backing weld technology for stainless steel tubes

不锈钢管打底焊接工艺的进展

This paper describes the reasons for various kinds of defects of backing weld and their recognition on X_rays films It also introduces the protective measures for them

剖析带垫板焊缝中各种缺陷产生的原因及在射线底片上进行辨认的方法，并提出这些缺陷的防止措施

Basic flux-cored wire for backing weld to T91 tube was studied in this paper.

研究了用于T91钢管打底焊的碱性渣系药芯焊丝。

Penetrant flaw detection agent was used to detect the backing weld surface, and the number of cracks was indicated by surface crack rate.

打底焊缝正面使用渗透探伤剂探伤，用表面裂纹率表示裂纹的数量。

The Development of An All-Position Automatic Welder with STT Technology for Pipe Backing Weld

STT全位置自动打底焊机的研制