Cold Rolled Steel Phaj Common Defects

Ntug crack defect
Lub tsub zuj zuj ntawm loj inclusions ntawm ntug yog ib qho ntawm lub ntsiab ua rau ntawm ntug cracking. Vim yog siv cov pwm pwm hauv nyias slab, qhov ntws, hloov hluav taws xob thiab cov kua theem hloov pauv hauv cov pwm yog qhov nyuaj dua li cov tsoos slab nruam casting. Hauv cov txheej txheem casting, slag dov feem ntau tshwm sim. Ib feem ntawm slag dov tseem nyob rau ntawm qhov chaw ntawm lub slab los ua qhov sib xyaw ua ke, thiab cov khoom sib xyaw loj yog tso rau ntawm ntug ntawm lub slab, uas ua rau muaj kev nplua nuj ntawm cov oxide loj ntawm ntug.
Hlau oxide nias defect
Qhov tsis tiav thawj oxide yog nias rau hauv lub sawb thaum lub sij hawm tom qab dov txheej txheem, uas ua rau deg tsis xws luag ntawm lub strip. Tus yuam sij rau kev nias qhov tsis xws luag ntawm daim ntawv thib ob oxide yog tias cov dej hauv nruab nrab tsis qhib. Cov txiaj ntsig kev soj ntsuam tsis raug qhia tau hais tias qhov tsis xws luag ntawm cov ntawv oxide tuaj yeem raug tshem tawm hauv cov txheej txheem tom qab pickling thiab txias dov, thiab tsis muaj kev cuam tshuam rau cov ntawv txias txias.