第39卷第11期压力容器2022年11月doi:■■■■■■■■■■■■■■■■■■■■10．3969/j．issn．1001－4837．2022．11．003试验研究TP316H不锈钢横焊位激光对接技术研究袁亮文1，刘万存1，高永光1，赵佳1，张强2(1．一重集团大连核电石化有限公司，辽宁大连116113;2．大族激光科技产业集团股份有限公司，广东深圳518052)摘要:针对第四代快中子反应堆中近2600根TP316H管件焊接需求，进行了TP316H不锈钢横焊位激光对接技术研究，主要包括焊接方法选择、焊接工艺制定、焊缝成形尺寸分析、试样无损检测(PT，UT，ＲT)以及理化性能分析。试验结果表明，焊接接头板抗拉(或拉伸)强度Ｒm≥515MPa，高温(650℃)棒抗拉(或拉伸)强度Ｒm≥313MPa，冲击吸收能量KV2≥120J，各区域硬度≤200HV以及金相组织都符合产品技术条件要求，对后续激光焊接技术应用在核电压力容器部件制造中提供了理论指导。关键词:TP316H管件;横焊位;激光焊接;理化性能中图分类号:TH49;TQ055．8;TG456．7文献标志码:AStudyonlaserbuttweldingtechnologyofTP316HstainlesssteeltubesYUANLiangwen1，LIUWancun1，GAOYongguang1，ZHAOJia1，ZHANGQiang2(1．CFHIDalianNuclearPowerandPetrochemicalEquipmentCo．，Ltd．，Dalian116113，China;2．Han'sLaserTechnologyIndustryCo．，Ltd．，Shenzhen518052，China)Abstract:Fortheweldingrequirementsofnearly2600TP316Htubefittingsinthefourthgenerationfastneutronreactor，TP316Hstainlesssteelhorizontalweldingpositionlaserbuttweldingtechnologywascarriedout，mainlyincludingweldingmethodselection，weldingprocessformulation，weldformingandsizeanalysis，non-destructivetestingofsamples(PT，UT，ＲT)andanalysisofphysicalandchemicalproperties．Thetestresultsshowthatthetensile(orstretching)strengthoftheweldedjointplateisＲm≥515MPa，hightemperature(650℃)bartensile(orstretching)strengthisＲm≥313MPa，theimpactabsorbedenergyisKV2≥120J，thehardnessis≤200HV，andthemetallographicstructuremeetthetechnicalrequirementsoftheproduct，whichprovidestheoreticalguidanceforthesubsequentapplicationoflaserweldingtechnologyinmanufacturingofnuclearpowerpressurevessels．Keywords:TP316Htubefitting;horizontalweldingposition;laserwelding;physicalandchemicalproperties收稿日期:2022－06－23修...
