大型油罐地腳螺栓焊接程序ANCHOR BOLT WELDING PROCEDUREfor TANKS

1、大型xx罐地腳螺栓焊接程序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 本程序給XX石化項目儲罐地腳螺栓焊接提出了工藝、質(zhì)量要求，確保地腳螺栓的焊接質(zhì)量。2. ScopeThis proce

2、dure applies to welding of the anchor bolt of the butadiene tanks of the YEZHU Xx Petrochemical Project. 范圍 本程序用于XX石化項目儲罐地腳螺栓的焊接工作。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工件說明地腳螺栓、螺母材質(zhì)為35CrMoA，規(guī)格為M42，錨板材質(zhì)為16MnR，規(guī)格為150×150×30mm。螺栓與螺母間、螺母與錨板間需要焊接。地腳螺栓Anchor bolt螺母Nut錨板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.焊接工藝 3.2.1焊接方法采用手工電弧焊，3.2.2焊條選用A302（E309-16 GB/T 983），規(guī)格3.2mm。 3.2.3焊接參數(shù)見附錄WPS。3.3 Welding quality requirements 焊接質(zhì)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. 螺母與螺栓間，焊4點，均布，每點長度不小于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. 螺母與錨板間，焊4點，均布，每點長度不小于8mm，焊角高不小于8mm。 Welders shall strictly comply with the specification of WPS. 焊工焊接時應(yīng)嚴(yán)格按WPS的規(guī)定執(zhí)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. 焊縫表面不得有熔渣、表面氣孔、表面裂紋，焊縫外觀應(yīng)規(guī)則，與母材平滑過度。附錄：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. 均布點焊4點，每點長度不小于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