Dab tsi yog qhov txawv ntawm SGCC thiab SECC (electro-galvanized steel) hauv kev siv tsheb thiab kev tsim kho?
SGCC muaj cov txheej tuab dua thiab muaj zog tiv thaiv corrosion, ua rau nws tsim nyog rau kev tsim cov khoom siv sab nrauv thiab tsheb chassis tiv thaiv qhov chaw. SECC muaj cov txheej nyias nyias thiab ua kom zoo dua qub, ua rau nws tsim nyog rau cov tsheb sab nrauv thiab lub tsev kho kom zoo nkauj sab hauv, thiab nws kuj yog tus nqi ntau dua - zoo.
Lub weldability ntawm SGCC yog dab tsi, thiab yuav tsum tau ceev faj dab tsi thaum vuam nws nyob rau hauv kev siv tsheb thiab kev tsim kho?
Spot welding thiab arc vuam siv tau, tab sis cov txheej zinc tuab tuaj yeem ua rau electrode adhesion thiab weld porosity. Automotive welding yuav tsum tau tswj cov tam sim no thiab electrode tu zaus, thaum siv vuam yuav tsum recoating nrog zinc rau kev tiv thaiv corrosion.
Dab tsi yog cov yam ntxwv zoo ntawm SGCC, thiab nws cuam tshuam rau lub tsheb thiab lub tsev sab nrauv li cas?
Ib qho me me ntawm nplua zinc spangles yog tso cai rau ntawm qhov chaw. Lub tsev cladding qhov chaw tuaj yeem siv ncaj qha, tab sis cov tsheb sab nrauv yuav tsum tau sib tsoo los yog primer daim ntawv thov; txwv tsis pub, pinholes nyob rau hauv txheej yuav tshwm sim. Spangle- ntau yam dawb tuaj yeem txhim kho qhov no, tab sis kim dua.
Dab tsi yog qhov siv tau thickness ntau ntawm SGCC, thiab dab tsi yog cov thicknesses feem ntau siv hauv kev lag luam tsheb thiab kev tsim kho? Thawj daim ntawv tuab yog 0.19-3.2mm, nrog 0.5-1.5mm feem ntau siv hauv kev lag luam tsheb thiab 0.3-2.0mm hauv kev tsim kho. Cov ntawv tuab (2.0-3.2mm) yog siv rau cov khoom siv hauv tsev thiab cov khoom siv hauv tsheb.
Tus nqi zoo ntawm SGCC yog dab tsi, thiab vim li cas nws thiaj dhau los ua cov khoom siv hauv kev lag luam tsheb thiab kev tsim kho?
Muab piv rau cov hlau tsis muaj steel, nws yog 30% -50% pheej yig dua, muaj kev tiv thaiv corrosion zoo dua li cov khaub thuas zoo tib yam - cov ntawv dov, thiab yog tsim rau ntau lawm. Nws tuaj yeem txo cov nqi ntawm cov khoom siv rau cov khoom siv tsheb tsis tseem ceeb thiab lub tsev cladding.