T/CWAN 0057-2021
埋弧自动横焊焊接工艺规范
Welding procedure specification for automatic horizontal submerged arc welding
2021-07-01 实施
2021-05-21发布
目次
前言.….………….………………….…….…….………………….………….………..………………….…….1
1 范围…...................……....…................…....…......…..……. 1
2规范性引用文件………………………………………………………………… 1
3 术语和定义 ….….……….…………...………….….……………...……………….…..….………........….........…..1
4 一般要求…..…..….....…..…….…....…..….…..….…….…..…..…..…….…....….....…...….…....…...….…....……….1
5 焊接设备..…..………………….…..…..….….……….……...….…...….….………..….…...………2
6 焊接材料...…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..….............….2
7 焊接坡口要求 …….……….….……………….………………...……….............…...…....3
8 焊接工艺要求 ……………………………………………………………….…………………..………....….....….……3
9 焊后检测和返修…...........................…….....………...........4
10 安全防护 ...…....................…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…. 4
附录 A（规范性） 埋弧自动横焊的焊接坡口…….......…...............…....…….....……5