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1、ICS25.160P72備案號(hào):J2096-2015中華人民共和國石油化工行業(yè)標(biāo)準(zhǔn)SH/T3520-2015代替SH!T3520-2004石油化工錯(cuò)鋁鋼焊接規(guī)范Weldingspecificationofchromemolybdenumsteelinpetrochemicalindustry2015-04-30發(fā)布2015-05-01實(shí)施中華人民共和國工業(yè)和信息化部發(fā)布SH/T3520-2015目次前言……….............................................................................................
2、...........……….III123456789范規(guī)術(shù)才123焊焊JJ焊J23412返焊田r…明以…腳材接舊時(shí)…文……脫…惻瞬…峰淀…骯料………查測…理性削四盼…-i14礎(chǔ)酬仲→鋼焊叫叫樹坡組缸一焊預(yù)焊酣外無修民(((用文件…叮，中吁中。白44444667777件80隊(duì)錄錄錄規(guī)HH……接9Hq中工……………用…………………驚和錄…藝……評(píng)……………唯…………………國制國…定……………備…………………內(nèi)詞內(nèi)ququququA34AAbr叫對去即制歸接非蜘擁…忱酬酬酬刷刷HH位"…選…HHU手""………吐PD戶uOPOρhunhU………HHUH))葉i山附附附本附…惜即向陸……化批知……葉
3、iQJQd1iABC問葉咐A/鋁時(shí)即如非噸明"唰脅焊號(hào)料圳學(xué)用品成"分分…及-AK--L功…制學(xué)…盯…性…AH匕已口各夕-At門，中。中。中川4范條戶。呵，dSH/T3520-一2015ContentsForeword................................................................................................................…..III1Scope'………………………………………………………………………………………..……………12Normativereferences'………
4、……………………………………………………………………………..13Termsanddefinitions'……………………………………………………………..………………………24Material……………………………………………………………………………………………………24.1Generalrequirements'………………………………………………………………………………..24.2Steel……………………………………………………………………………………………………24.3Weldingmaterial'"……………………………………………………………………………………25Welder
5、andWeldingprocedurequalifications……………………………………………………………36Weldingproparation……………………………………………………………………………….........36.1Bevelprocessing'……………………………………………………………………………………"36.2Jointassemblyandpositioning………………………………………………………………………37Weldingprocedure'…..……………………………………………………………………………………47.1Generalrequirem
6、ents'………………………………………………………………………………..47.2Weldingmaterialselectionandpreparation…………………………………………………………47.3Preheat.…………..……………………………………………………………………………………57.4Weld…………………………………………………………………………………………………68Weldinginspection'…………………………………………………………………………..……………68.1Visualexaminatioll"…………………………………………………………………
7、………………..68.2NDT…………………………………………………………………………………………………69Weldrepair………………………………………………………………………………………………710PWHT"………………………………………………………………………………………………….7AnnexACInformative)Chemicalcompositionandmechanicalproperti
