1.Vim li cas xim txawv tshwm sim?
Cov txheej txheem ntawm cov xim sib txawv yog qhov nyuaj, tab sis qhov ncaj qha thiab cov laj thawj feem ntau yog taw qhia rau ib qho: qhov tsis sib xws micro-roughness (Ra) ntawm steel strip nto. Thaum lub teeb ci rau thaj chaw uas muaj qhov sib txawv ntawm qhov sib txawv, qhov cuam tshuam ntawm kev xav txawv, thiab tib neeg lub qhov muag yuav pom qhov sib txawv ntawm cov xim lossis qhov ci.
2.Dab tsi yog cov yam ntxwv tseem ceeb thiab cov hauv paus ntsiab lus ntawm qhov sib txawv ntawm cov xim longitudinal (lub teeb thiab tsaus nti)?
Parallel kab txaij faib raws cov kev taw qhia dov, kwv yees li 5-15 mm dav, feem ntau pom muaj nyob hauv cov hlau tsis tshua muaj carbon steel.
1. Qhov tsis sib xws ntawm qhov roughness ntawm kub- cov ntawv dov: Cov ntawv roughness ntawm kub -rolled ntawv yog inherently tsis sib npaug, ua rau tsis sib xws ntawm emulsion thiab dov quab yuam thaum txias dov.
2. Roughness decay ntawm txias dov yob: tsis sib xws hnav ntawm upstream sawv rolls thaum siv hloov mus rau lub sawb.
3. Cov txheej txheem kev ua kom tsis zoo: Qhov roughness, ncov suav, thiab qib elongation ntawm cov qib yob yog mismatched nrog qib steel.
3.Dab tsi yog cov yam ntxwv tseem ceeb thiab ua rau cov xim sib txawv ntawm cov npoo?
Ntau dhau roughness sib txawv ntawm ntug thiab nruab nrab ntawm kub -rolled steel los xij. Qhov no feem ntau muaj feem xyuam rau qhov tsis zoo coiling kub thiab laminar ntws txias hom nyob rau hauv cov txheej txheem kub dov, uas ua rau txawv microstructure thiab cov khoom ntawm ntug thiab qhov chaw.
4.Dab tsi yog cov yam ntxwv thiab qhov tseem ceeb ntawm watermark/patchy xim txawv?
Nws tshwm raws li dej stains los yog me ntsis.
Oxidation marks tsim tom qab annealing yog residual dov emulsion los yog dej stains nyob rau saum npoo ntawm txias-rolled coils (unannealed txias-rolled coils) tsis sai li sai tau tshuab.
5.Dab tsi yog cov yam ntxwv ntawm cov xim sib txawv uas cuam tshuam nrog lwm cov txheej txheem?
Nws muaj ntau hom kev qhia thiab tsis muaj daim ntawv ruaj khov.
1. Tsis sib npaug dov siab: Ntau dhau los yog tsis txaus txo nyob rau hauv qee qhov chaw ua rau muaj qhov sib txawv ntawm qhov chaw.
2. Lub lubrication tsis zoo: tsis sib xws emulsion concentration lossis kub, lossis kev taw qhia ntawm impurities, ua rau cov roj tsis sib xws.
3. Localized yob hnav: siv ntev ua rau hnyav hnyav hnyav ntawm qhov yob nto.