衬垫焊接工艺

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1、上海中远船务工程有限公司SHANGHAI COSCO SHIP ENGINEERING CO.,LTD.工艺技术文件TECHNICAL DOCUMENT工程名称WORKS ITEM工号WORKSNUMBER编制ORGNIZATION校对PROOF-READING审核CHECK BY10mm钢板对接焊工艺朱月飞邹勇李曼璇10mm 普通钢板对接衬垫焊接工艺。1.材料钢板的材质为10mm NK “B”级钢板。必要时向船检部门提交钢板材质证书。2.坡口形式及间隙:如图所示，其焊接坡口为 55+5，根部间隙为 45mm。焊道顺序为平对接 仰对接立对接焊接参数焊接位置焊道顺序焊条焊接电流A焊接电压V焊接电

2、源AC/DC平焊13.2100-14028-30DC24.0140-16026-30DC34.0140-16026-30DC44.0140-16028-30DC仰焊13.2140-16028-30DC24.0120-16026-30DC34.0120-16026-30DC44.0140-16026-30DC立焊13.290-14028-30DC24.0120-16026-30DC34.0120-16026-30DC3. 焊接材料1）使用低氢碱性焊条J507 （南京广泰NJ507）且焊条要按规定在烘箱进行烘干处理，时 间为2小时以上，200摄氏度。2）焊接材料在保存、使用应严格按说明书进行操作。

3、4. 焊接要求1）为防止产生气孔，裂纹等缺陷，施焊前焊缝坡口两侧范围区域的铁锈、氧化皮、油污 和杂物等应予清除，并保持清洁和干燥。2）焊缝末端收口处应填满弧坑。进行多道焊时，在下道焊接之前，应将前道焊渣清除并 测量和记录焊缝的层间温度。层间温度控制在100250C5. 检验要求:1） 外观检验：焊缝应有良好的外观，不许有严重的焊接缺陷（焊瘤、弧坑、咬边）的存The welding procedure for butt joint1. Material:The steel plate is 10mm NK Grand B.If necessary the steel plate certific

4、ate to be hand over to surveyor.2. The fitting gap and bevelType of test jointWeld pass detailWelding procedure detailWeldi ng positi onsRunsSize of filler materialCurre ntAVoltage VPolarity AC/DCFlat13.2100-14028-30DC24.0140-16026-30DC34.0140-16026-30DC44.0140-16028-30DCOverhead13.2140-16028-30DC24

5、.0120-16026-30DC34.0120-16026-30DC44.0140-16026-30DCVerticalUpward13.290-14028-30DC24.0120-16026-30DC34.0120-16026-30DC3. Welding material:1) Electrodes: j507 (Nanjing GuangTai NJ507)2) Keeping dry for electrodes in the hot box and temperature is 200 degrees more than 2 hour4. Welding requirement1)

6、The butt joints should be cleaned and kept dry before welding.2) Water, rust, oil, the iron oxide should be removed at the welding seam area.3) Its to be cleaned weld seam and checked and recorded the interpass temperature before next weld. After each run, the assembly is to be left in still air unt

7、il it has cooled to less than 250 C but not below 100 C, the temperature being taken at the center of weld on the surface of seam.5. Inspect requirement:1) No permission to exist any weld defect such as spatter, porosity, cracks, undercut, etc.2) Internal inspections by ultrasonic examination.3) Ins

8、pection and testTest specimen positionEISCAkl： f 1ELE Fl H -J 生FEZ ；.-lEhROOT 吃ND TETSPELlMEhV-2HARPY IMPA匚丁 TESTSPECIMENS12mmDH36 钢板对接衬垫焊接工艺。1.材料钢板的材质为12mm LR DH36钢板。必要时向船检部门提交钢板材质证书。2.坡口形式及间隙:如图所示，其焊接坡口为 555，根部间隙为 45mm。焊道顺序为仰对接焊接参数焊接位置焊道顺序焊条焊接电流A焊接电压V焊接电源AC/DC仰焊13.2140-16028-30DC24.0120-16026-30DC

9、34.0120-16026-30DC44.0140-16026-30DC3. 焊接材料3) 使用低氢碱性焊条J507 (南京广泰NJ507)且焊条要按规定在烘箱进行烘干处理，时 间为2小时以上，200摄氏度。4) 焊接材料在保存、使用应严格按说明书进行操作。4. 焊接要求3) 为防止产生气孔，裂纹等缺陷，施焊前焊缝坡口两侧范围区域的铁锈、氧化皮、油污 和杂物等应予清除，并保持清洁和干燥。4) 焊缝末端收口处应填满弧坑。进行多道焊时，在下道焊接之前，应将前道焊渣清除并 测量和记录焊缝的层间温度。层间温度控制在100250C5. 检验要求:3） 外观检验：焊缝应有良好的外观，不许有严重的焊接缺陷（

10、焊瘤、弧坑、咬边）的存 在。焊缝超声波检查。4）试验与检查项目试验位置截弃段宏观试样夏比/型缺口冲击试 样拉伸试样1 :正弯试样反弯试样截弃段T30The welding procedure for butt joint6. Material:The steel plate is 12mm LR Grand DH36.If necessary the steel plate certificate to be hand over to surveyor.7. The fitting gap and bevelType of test jointWeld pass detailVERHE-I3J

11、Welding procedure detailWeldi ng positi onsRunsSize of filler materialCurre ntAVoltage VPolarity AC/DCOverhead13.2140-16028-30DC24.0120-16026-30DC34.0120-16026-30DC44.0140-16026-30DC8. Welding material:3) Electrodes: j507 (Nanjing GuangTai NJ507)4) Keeping dry for electrodes in the hot box and tempe

12、rature is 200 degrees more than 2 hour9. Welding requirement4) The butt joints should be cleaned and kept dry before welding.5) Water, rust, oil, the iron oxide should be removed at the welding seam area.6) Its to be cleaned weld seam and checked and recorded the interpass temperature before next weld. After each run, the assembly is to be left in still air until it has cooled to less than 250 C but not below 100 C, the temperature being taken at the center of weld on the surface of seam.10. Inspect requirement: