局部焊后热处理程序local pwht procedure

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1、局部焊后热处理程序LOCALPWHTPROCEDURETableofContent1.PURPOSE......................................................................................................................................................22.SCOPE.................................................

2、..........................................................................................................23.REFERENCES..........................................................................................................................................

3、....24.METHODOFPWHT...................................................................................................................................25.REQUIREMENTS............................................................................................

4、.............................................35.1PREPARATIONPRIORTOPWHT..................................................................................................................35.2EXECUTIONOFPWHT.....................................................

5、..........................................................................55.3PWHTRECORDSYSTEM...........................................................................................................................51.PURPOSEDuringinstallationsofthe5feeds

6、tocktanks,somepartswillbecarriedoutPWHTonsite.ThisprocedureisissuedtoensurethatPWHTcancarryoutsmoothly,andthatparametersandqualityofPWHTcanmeetrequirementsofcontract,andappliedpecification/standardtosatisfytheowner.目的：原料油储罐安装过程中，一些部件需进行现场热处理，本程序的发布，是为了保证现场热

7、处理工作的顺利进行，使热处理参数、质量符合合同、适用规范和标准的要求，使业主满意。2.SCOPEThisprocedureisapplicabletolocalPWHTofmanholes,nozzles,andreinforcementplatesof5feedstocktanksofXXXxPetrochemicalProject.Ifmanholesandnozzlesarewithreinforcementplates,andthicknessofplatewhichman-holeandnozzle

8、areinismorethan12mm,PWHTshallbecarriedoutafterman-holes,nozzles,andreinforcementplateshavebeenassembledandweldedwiththeplatewhichtheyshouldbein,andtheyareaccepted.范围：本施工程序适用于xx石油化工有限公司原料油罐安装中，对人孔、接管及补强