压力筛S30408不锈钢筛鼓法兰环断裂成因分析及制造优化方案

打开文本图片集

中图分类号：TS733 文献标识码：A DOI：10.11980/j.issn.0254-508X.2026.04.027

Cause Analysis for Flange Ring Fracture and Manufacturing Optimization Proposal of S30408 Stainles Steel Pressure Screen Drum

MA Yongheng'NIU Jiangting²TIAN Yingpan² CHEN Chunfeng³LI Xiaohan’HOU LiyuelWANG Huiqiu² SONG Zhenjian² ZHAO Pingl，*

（1.CollgofaterialsSenceandEngineringQingdoUniersityfiencendTechologQigdohndongProvince4;

2.ShandongChenzhongMachineryCo.，Ld.，Zibo，handongProince5642；3ZiboJindongachineryManufacturingCod， Zibo，ShandongProvince，） （ * E-mail： zhaoping1986711@163.com）

Abstract：TispapercondutedasystematicfilureanalysisstudyonthesuddenfractreofteflngeringofanSo48stailesteelpres surescreendruinapulpandpapermillduringservie.Thoughobservatiosusingametallrgicalmcroscoeandascaingelectronmicroscope，itwasfondatteaseatealebiedtyicalusteniticquaxedgainstructurewitgodoverallqalityhleteeld zonedisplaydosegain，omogenscrostrucureouospreiiatiofCCrbids，nddectssuchasodinl sions，showingossesizatioharacteist.fracturemopologvealedatacksostlyatedroeldefetsdad ually propagated under alternating loads，in conjunction with corrosion induced by Cl-， S2- ， K+ ，and other ions in the pulp，ultimately resulting incorosionftifracureEespesispectroetealysssulsodtsefboygctde pletiononthfrcturefrtatigatoaleeadackopgasdompali， an improvement plan was proposed， which included“selecting sensitization-resistant stainlesssteel materials （such as S3O403/S316O3），optimizingthe weldingprocess and implementing solution heat treatment，and combining corrosion protection with lifespan monitoring”to enhance the corrosion resistance and service life of the screen drum.

Keywords： pressure screen drum; flange ring fracture; S3O4O8 stainless steel; failure analysis

制浆造纸工业是国民经济和社会发展的重要基础产业，在文化传承、信息交流以及新型包装材料应用等方面发挥着不可替代的作用。（剩余9533字）