Welded steel yeeb nkab txheej txheem yog ib daim ntawv hlau, sawb, thiab lwm yam molding txoj kev uas siv cov ncaj nias yob los yog helical kev taw qhia curling mus rau hauv ib tug xav cross-sectional duab, thiab ces los ntawm txoj kev ntawm tshav kub, siab, sib txawv txoj kev ntawm welding weld ua ke rau tau hlau. Yog li ntawd, qhov tsis xws luag hauv welded steel yeeb nkab tau muab faib ua ob ntu: cov khoom siv hlau tsis xws luag thiab cov khoom siv vuam tsis raug.

1. Cov khoom siv hlau tsis zoo
Cov ntaub ntawv tsis xws luag tom qab dov thiab lwm yam txheej txheem, feem ntau ntawm cov qauv, sib npaug rau saum npoo; lawv lub ntsiab tsis muaj zog delamination, suav nrog, kab nrib pleb, folds, thiab lwm yam, uas yog cov feem ntau txheej txheej sab hauv tsis xws luag. Stratification yuav tsim ntau yam kab nrib pleb thaum lub tensile kev nyuaj siab perpendicular mus rau saum npoo ntawm daim ntawv los ntawm lub hierarchical yuav cuam tshuam rau lub zog ntawm cov yeeb nkab steel, nws tsis tso cai tsis xws luag.

2. Weld tsis xws luag
Weld defects hais txog qhov tsis xws luag thaum vuam los yog tom qab vuam uas ua rau cov vuam tau muab faib ua cov kab nrib pleb, qhov pores, slag, tsis tiav kev nkag, tsis tiav fusion, undercut weld defects. Intensive weld porosity, slag, thiab lwm yam. ib tug ntom peb-dimensional defects, tawg, tsis muaj fusion thiab lwm yam tsis xws luag nyob rau hauv cov ntaub ntawv ntawm lub tiaj tus, loj txaus ntshai. Sawb slag, tsis tiav nkag mus thiab lwm yam tsis xws luag nyob rau hauv cov ntaub ntawv ntawm sawb, zoo heev kev puas tsuaj. Pores, slag thiab lwm yam me me xws li qhov tsis xws luag hauv rooj plaub. Weld tsis xws luag feem ntau yuav ua rau lub zog steel, yas thiab lwm yam teeb meem, cuam tshuam rau qhov zoo ntawm cov hlau, welded steel yeeb nkab zoo ncaj qha cuam tshuam rau kev nyab xeeb thiab kev pab lub neej ntawm cov roj thiab roj pipelines, thiab yog li rau weld soj ntsuam tsuas yog rau vuam tawg tawg, pores, slag, incomplete penetration, tsis tiav fusion thiab lwm yam txaus ntshai flaw nrhiav pom ntawm qhov tsis xws luag.