2023年7月第4期«大型铸锻件»HEAVYCASTINGANDFORGINGJuly2023No.4压力容器球形封头椭圆的校正方法李莉郭太平武兴国(二重(德阳)重型装备有限公司ꎬ四川德阳618000)摘要:压力容器制造过程中ꎬ采用热成形的球形封头回厂进行性能热处理后ꎬ通常会出现变形ꎬ导致封头圆度超差无法满足后续的配作加工要求ꎮ结合不同壁厚封头实际情况ꎬ利用现有资源条件进行技术攻关ꎬ摸索出两种校正方法用于封头成形后不能返回封头厂校正的情形ꎬ以减小其椭圆度ꎬ最终满足封头与筒体对接A类焊缝的错边量要求ꎮ其中水压机校正方案还可用于锻件筒体变形的修复实践ꎬ千斤顶校正技术已应用到波动管成形与校正实践中ꎬ拓宽了产品制造技术ꎮ关键词:球形封头ꎻ椭圆ꎻ刚性ꎻ校正ꎻ热处理中图分类号:TG142.1+4文献标志码:ACorrectionMethodforEllipseofSphericalHeadofPressureVesselLiLiꎬGuoTaipingꎬWuXingguoAbstract:Inthemanufacturingprocessofpressurevesselsꎬafterthehot ̄formedsphericalheadhasbeenreturnedtothefactoryforperformanceheattreatmentꎬdeformationusuallyoccursꎬresultingintheroundnessoftheheadexceedingthetoleranceꎬwhichcannotmeetthesubsequentprocessingrequirements.Inthispaperꎬcombinedwiththeactualsituationofheadswithdifferentwallthicknessesꎬtechnicalresearchhavebeencarriedoutbytheexistingresourceconditionsꎬandtwocorrectionmethodshavebeenexploredforthesituationthattheheadcannotreturntotheheadfactoryforadjustmentafterformingꎬsoastoreduceitsovalityandfinallymeett...