陕西延长石油靖边能源化工综合利用启动项目195C罐区焊接方案审批：审核：编制：中国化学工程第六建设有限公司2012年7月3日目录1.工程概况和编制依据................................................................................................................................3第1页共16页1.1工程概况......................................................................................................................................................31.2编制依据......................................................................................................................................................32.现场准备....................................................................................................................................................32.1焊接工艺评定和焊工考核..........................................................................................................................32.2焊接方法、焊材选用及焊接设备..............................................................................................................42.3下料切割及坡口加工..................................................................................................................................52.4焊接接头坡口型式及组对尺寸..................................................................................................................53.焊材管理....................................................................................................................................................64.焊接工艺参数............................................................................................................................................75.焊接施工....................................................................................................................................................75.1一般要求......................................................................................................................................................75.2罐底板焊接..................................................................................................................................................85.2.1罐底板焊接总体顺序..........................................................................................................................85.2.2罐底中幅板的焊接..............................................................................................................................95.2.3罐底边缘板对接焊缝的焊接............................................................................................................105.2.4底圈壁板与边缘板角焊缝的焊接....................................................................................................105.2.5中幅板与边缘板之间收缩缝的焊接................................................................................................105.3罐壁的焊接................................................................................................................................................115.4拱顶的焊接................................................................................................................................................115.5附件的焊接................................................................................................................................................116.质量保证...
