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1、四川大学网络教育学院本科生(业余)毕业论文（设计）题目我国银行信用卡发展中的问题及对策办学学院四川大学校外学习中心专业年级指导教师学生姓名学号2011年月日25Cr-13Nitypeoraweldingmaterialwithhighnickelcontent.Lowtemperaturesteels,austeniticstainlesssteelandheat-resistantcorrosion-resistanthighalloysteelsandausteniticandnon-austenitedissimilarsteelwe
2、ldedjointsshallcomplywiththefollowingrequirements:toensurepenetrationandfusionundergoodconditions,lowcurrent,short-arc,weldingspeedandmuchfasterweldingprocessandinterpasstemperatureshouldbecontrolled.Highcorrosionresistanceperformanceofdouble-sidedweldedwelds,weldedlayerin
3、contactwithcorrosivemediafinallywelded.Lowtemperaturesteelwelding,suitableforthesurfaceoftheweldbeadannealing.Check6.6.16.6weldinginspectionbeforeweldingmaterialandweldingmaterials,mustbecarriedoutaccordingtostandardacceptance,unqualifiedpersonsmaybeused.Groupbeforethedime
4、nsionsofvariouspartsofthemainstructure,Groovesizes,andgroovedsurfaceforinspection.WeldingGrooveandGrooveonbothsidesshouldbecheckedbeforethecleaningquality.Checktheweldingbeforeweldingconditionsareconsistentwiththeprescribedconditions,andweldingequipment.Thedryingandcleanin
5、gofweldingmaterialstoconfirmthatitmeetstherequirements.6.6.2intermediateweldinginspectiontackweldingaftertheskullshouldbeclearedcheckstoweldingthedefectsfoundshallberemovedbeforetheycan.Multi-layerweldingweldingaftertheeachfloorshouldimmediatelycleanthelayers,andVisualinsp
6、ection,founddefectsinweldedtoeliminatebeforetheycanproceedtothenextlevel.Tointerrupttheweldingseam,shouldbecleanedandcheckedbeforecontinuingtoweldtoeliminateweldingdefectsfoundbytherear.6.6.3checkafterweldingseamsshallbeweldedendsimmediatelyaftertheremovalofslagskin,splash
7、,cleanweldandweldinspection.Profilesshouldshapeformingbeautiful,notundercut,cracked,incompletefusion,blowhole,slag,splashandotherdefects.Weldreinforcementshould摘要我国信用卡市场发展中存在联合发展机制不健全、市场渗透率低、竞争主体单一、风险管理水平有待提高等诸多问题，借鉴发达国家信用卡市场发展的经验教训，可通过一些具体措施促进我国信用卡市场的健康发展，如发行联名卡拓展商业银行的优质客
8、户群体，积极依托联网联合改善用卡环境，促进征信系统的建立健全等。25Cr-13Nitypeoraweldingmaterialwithhighnickelcontent.Lowt
