管道内壁涂装防护及焊缝补口新工艺

A NEW TECHNOLOGY OF SPRAYING AND REPAIRING THE WELDING LINE IN INNER WALL OF PIPELINES

管道内壁涂装防护技术的瓶颈是现场安装焊接后焊缝的涂层补口处理。

The key point of coating protection of inner wall of pipelines is coating repairing in the welding line after jointing in site. The article introduces conditions of protection for inner wall of pipelines and a new technology of spraying and repairing the welding line in inner wall of pipelinnes.