大型油罐地脚螺栓焊接程序ANCHOR BOLT WELDING PROCEDUREfor TANKS

1、大型xx罐地脚螺栓焊接程序ANCHOR BOLT WELDING PROCEDURE for TANKS1. PurposeThis procedure provides welding process and quality requirements for the anchor bolt of the butadiene tanks of the YEZHU Xx Petrochemical Project to ensure its welding quality.目的 本程序给XX石化项目储罐地脚螺栓焊接提出了工艺、质量要求，确保地脚螺栓的焊接质量。2. ScopeThis proce

2、dure applies to welding of the anchor bolt of the butadiene tanks of the YEZHU Xx Petrochemical Project. 范围 本程序用于XX石化项目储罐地脚螺栓的焊接工作。3. Requirements3.1 Workpiece description The material of anchor bolt and nut is 35CrMoA, and specification is M42; The material of anchor plate is 16MnR, and the dimensi

3、on is 150×150×30mm. And welding shall be done between the blot and the nut, as welding between the nut and anchor plate. 要求3.1工件说明地脚螺栓、螺母材质为35CrMoA，规格为M42，锚板材质为16MnR，规格为150×150×30mm。螺栓与螺母间、螺母与锚板间需要焊接。地脚螺栓Anchor bolt螺母Nut锚板Anchor plate8Tack Weld 8Tack Weld 3.2 Welding process3.2.1

4、 The welding method is SMAW.3.2.2 Welding rod is A302（E309-16 GB/T 983）, and the dimension is 3.2mm.3.2.3 Welding parameter sees Attachment WPS.焊接工艺 3.2.1焊接方法采用手工电弧焊，3.2.2焊条选用A302（E309-16 GB/T 983），规格3.2mm。 3.2.3焊接参数见附录WPS。3.3 Welding quality requirements 焊接质量要求 Between the nut and the bolt, there s

5、hall be 4 welding spots, these spots are distributed equably. The length of each spot shall be no less than 8mm, and the height of welding angle shall be no less than 8mm. 螺母与螺栓间，焊4点，均布，每点长度不小于8mm，焊角高不小于8mm。 Between the nut and the Anchor plate, there shall be 4 welding spots, these spots are distri

6、buted equably. The length of each spot shall be no less than 8mm, and the height of welding angle shall be no less than 8mm. 螺母与锚板间，焊4点，均布，每点长度不小于8mm，焊角高不小于8mm。 Welders shall strictly comply with the specification of WPS. 焊工焊接时应严格按WPS的规定执行。 The surface of welding seam shall have no molten slag, surf

7、ace porosity and surface crack, the appearance of welding seam shall be regular, the weld toes shall be blended smoothly. 焊缝表面不得有熔渣、表面气孔、表面裂纹，焊缝外观应规则，与母材平滑过度。附录：WPSWelding procedure specificationWPS No. :  bolt-001 Welding Process(es): SMAW Revision: <1> Date: 2003.11.19 Type: Manual JOIN

8、T DESIGN POSITIONType:Fillet joint Position of Groove:FlatBacking: N/A Position of Fillet:N/ABacking Material: N/AVertical Progression:N/ABacking Gouging:N/APREHEATBASE METALSBetween Anchor Bolt and NutPreheat Temperature:N/AMaterial Specification:35CrMoA+ 35CrMoAInterpass Temperature:N/ACode Classi

9、fication:Heating Method:N/AThickness:POSTWELD HEAT TREATMENTDiameter:M42Holding Temperature:N/AFILLER METALS Holding Time:N/A Welding Specification: Other:N/A Welding Classification:E309-16TECHNIQUE Brand Name:A302String or weave:StringSHIELDINGMax Width of Weave:N/AFlux Trade name:N/ASingle or Mult

10、ipass:N/AElectrode Flux(class):N/AElectrode Extension:N/AGAS:Electrode Angle:N/AWELDING PARAMETERSWeld LayerWeldingProcessFiller MetalCurrentVolts(v)Travel Speed(cm/min)JOINT DETAILSDiam. (mm)Brand NameType&PolarityAmps(A)1SMAW3.2A302DC(+)90-12021-244-8NutAnchorBolt1233212SMAW3.2A302DC(+)90-1202

11、1-244-83SMAW3.2A302DC(+)90-12021-244-8NOTES:1. K=8mm2. 均布点焊4点，每点长度不小于8mm。Prepared By: Authorized By: Date: 2003.11.19 Date: Welding procedure specificationWPS No. :  bolt-002 Welding Process(es): SMAW Revision: <1> Date: 2003.11.19 Type: Manual JOINT DESIGN POSITIONType:Fillet joint Posit

12、ion of Groove:FlatBacking: N/A Position of Fillet:N/ABacking Material: N/AVertical Progression:N/ABacking Gouging:N/APREHEATBASE METALSBetween Anchor Plate and NutPreheat Temperature:N/AMaterial Specification:16MnR+ 35CrMoAInterpass Temperature:N/ACode Classification:Heating Method:N/AThickness:POST

13、WELD HEAT TREATMENTDiameter:30 、 M42Holding Temperature:N/AFILLER METALS Holding Time:N/A Welding Specification: Other:N/A Welding Classification:E309-16TECHNIQUE Brand Name:A302String or weave:StringSHIELDINGMax Width of Weave:N/AFlux Trade name:N/ASingle or Multipass:N/AElectrode Flux(class):N/AElectrode Extension:N/AGAS:Electrode Angle:N/AWELDING PARAMETERSWeld LayerWeldingProcessFiller MetalCurrentVolts(v)Travel Speed(cm/min)JOINT DETAILSDiam. (mm)Brand NameType&P