焊接卫生标准.pdf

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1、工程卫生设计标准-中国 ENGINEERING SANITARY DESIGN STANDARD-CHINA 2013年 1.Welding&Surface Treatment 焊接&表面处理 2 自动焊接机自动焊接机 Automatic Orbital Welder 供气管道供气管道 Umbilical Cord 焊接头焊接头Welding Head 吹气分析器吹气分析器 Purge Gas Analyzer 氩气瓶氩气瓶Argon Gas Bottle 3 手工焊接机手工焊接机 Manual Welding Machine 电源箱电源箱Power Source and Controls 焊

2、枪焊枪Welding Pen 气体流量计气体流量计Gas Flow Meters 4 管道焊接时管道内含氧量需小于管道焊接时管道内含氧量需小于150PPM Varying Purge Levels in 150PPM of Oxygen Mondelez 50 12,500 5,000 25,000 200 1,000 500 25 100 10 5 产品接触面可视化检查接收标准产品接触面可视化检查接收标准 Visual Examination Acceptance Criteria for Product Contact Surfaces 1.Typically the inside of

3、the tubing 2.100%VISUAL inspection of fitting welds near end of tubing(without special tools)3.If non-product contact surface does not meet acceptance criteria then product contact surface must be visual inspected or replaced.(boroscope or cutout)1.检查管道内部是典型的检查方式 2.100%目视检查管道末端的焊接（不借助特殊工具）3.如果非产品接触面

4、不能符合标准，那么产品接触面的检查必须目视检查或者借助工具（内窥仪或者断路器）焊接的标准焊接的标准 Welding Criteria 1.最大偏差小于10%壁厚 2.最大凸面小于10%壁厚 3.最大凹陷小于10%壁厚 4.人工焊接最小间距=2T壁厚 5.最小宽度大于最大宽度75%6.板与板焊接需打磨至0.8um（对于食品接触面）7.焊接后需钝化抛光至3.8um(非食品接触面)1.Maximum Offset/Misalignment=10%thickness 2.Maximum Convexity=10%thickness 3.Maximum Concavity=10%thickness 4.

5、Manual Welds Min.Width=2*thickness 5.Uniform In Width(Min.Width 75%of Max.Width)6.Plate to Plate Hermetically Sealed.The grinding to 32 Ra(0.8mm)，For food contact surface.7.The grinding to 150 micro inches Ra,for non-food contact surface.6 7 1.Consistent with preconstruction weld sample-start,termin

6、ation,shape,pattern,width,height,depth,color 2.No cracks,crevices,undercutting,pits,embedded or protruding material 3.Color straw/light blue 4.Oxide islands less than 1/16 diameter 5.Oxide island 4 or less per joint 焊接的标准焊接的标准 Welding Criteria 1.与施工前准备的焊接样品保持一致-开始，结束，外形，图案，宽度，高度，深度，颜色 2.没有缝隙，凹槽，凹陷，内

7、陷或突出的物质 3.淡黄色或者浅蓝色 4.氧化岛小于 1.6mm 直径 5.氧化岛每个连接不超过4个。焊接焊接 Welding 8 焊接焊接 Welding 9 Not Fully Penetrated 没有没有穿透穿透 Maximum Convexity 最大凸面小于最大凸面小于10%壁厚壁厚 焊接焊接 Welding 10 Bad Tube to Plate-Discontinuous or Skip Weld 不连续不连续和跳跃焊接和跳跃焊接 Good weld 合格焊接合格焊接 焊接焊接 Welding 11 Discontinuous or Skip Weld 间断焊接间断焊接 Go

8、od weld 合格焊接合格焊接 焊接焊接 Welding 12 Unacceptable-irregular scallops,varied width and overlaps 不规则不规则 Smooth,even 平整平整 焊接焊接 Welding 13 Good weld 合格焊接合格焊接 Corner-Joint-Porosity(holes),Some Spatter and No Penetration Back Side 小孔小孔，焊渣，渗透，焊渣，渗透不够不够 焊接焊接 Welding 14 Bad Back Side Incomplete Penetration 背面背面渗透不够渗透不够 Good weld 合格焊接合格焊接 Minimal Penetration No Penetration 15