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1、Weldingtheory焊接理论Areas领域Inthistrainingwewillcoverthemostgeneralareasof:在这个训练中,我们将介绍最通用的领域：Weldingtypes焊接类型Standards&Classes标准&级别Weldingpositions焊接位置Weldingsymbols焊接代号Calculations计算QualityAssurance质量保证Typesofwelding类型的焊接Fusionweldingisagenerictermforweldingprocesses熔焊焊
2、接过程是一个通用的术语.thatrelyuponmeltingtojoinmaterialsofsimilar类似的,依靠融化加入材料.compositionsandmeltingpoints.成分和熔化点。Typesofwelding类型的焊接Standards标准ISO5817Qualitylevelsforimperfections缺陷质量分级ISO4063ReferenceNumbersforWeldingmethods焊接方法的参考数据ISO3834-01,-02,-03,-04Qualityrequirementsfo
3、rfusionwelding.熔焊质量要求ISO9606Qualificationtestforwelders对焊工资格考试ISO2553Welded,brazedandsolderedjoints焊接,焊接和焊接接头symbolicrepresentationondrawings符号表示，图纸ISO17635Non-destructivetestingofwelds.Generalrulesfor焊缝的无损检验，一般规则metallicmaterials金属材料(Acceptancelevelscannotbeadirectin
4、terpretationofthe qualitylevelsdefinedinISO5817orISO10042. Theyarelinkedtotheoverallqualityoftheproducedbatchofwelds.)..andmanymore…其他，更多WeldingiscontrolledbyanumbersofStandards.焊接由数字控制的标准Standards标准Whydoweneedstandards?为什么我们需要标准Weldingclasses焊接类General一般Weldingclassa
5、sfollowing:焊接类如下SS-ENISO5817forferritematerialandstainlesssteel.对铁氧体材料和不锈钢SS-ENISO5817。SS-ENISO10042foraluminium.为铝SS-ENISO10042。Acceptanceboundary,discontinuitiesandformdeviations,seeSS-ENISO6520-1,接受边界、断层和偏差,看到SS-ENISO6520-1,table1.WeldingclassB焊接类BThetransitionbetw
6、eentheweldandthebasematerialshallbeeven,andshallnot焊接和基材之间的过渡应均匀,不得haveanysharpnotches.Cratersshallbefilledinandunevennessesshallberemoved.有任何锋利的等级。陨石坑应当填写,不应删除Theweldfaceandrootfaceofbuttjointsshallhaveaplaneorslightlyconvexform.对接接头的焊缝表面和根面有一架飞机或略凸的形式Cornerjointssha
7、llbeconvexontheoutsideandinthemainconcaveorplaneontheinside.角接头应在主凹或凸在外面和飞机TheweldfaceofT-jointsshallpreferablyhaveaconcaveorplaneform,butaslightlyconvexformisacceptable.丁字接头的焊接面最好是有一个凹形或平面形式,但略凸形式是可以接受的ThehomogeneityoftheweldshallinthemainmeettherequirementsofX-raycl
8、ass焊缝应均匀性的主要满足x射线类的要求4(blue).However,internalporesanddiscreteinclusions(slag,heavymetals,oxidesandshrinkagecavities)meetingt
