Q: Dab tsi yog qhov teeb meem zoo nrog SPCE steel coils? Yuav thov li cas them nyiaj?
A: Cov teeb meem tshwm sim: ① Flattened coil (elliptical deformation); ② Txheej misalignment / dhau lawm; ③ Loose puab coil; ④ Nto khawb / oxidation; ⑤ Kev ua haujlwm tsis zoo (piv txwv li, elongation tsis txaus). Cov txheej txheem thov: ① thaij duab ua pov thawj hauv 7 hnub tom qab tau txais cov khoom; ② Muab cov ntawv xeem (los ntawm ib lub koom haum thib peb- tog uas lees paub los ntawm ob tog); ③ Sib tham nrog tus neeg muag khoom kom rov ua dua lossis rov qab. Daim ntawv cog lus yuav tsum tau hais meej meej txog "kev xa rov qab tsis muaj xwm txheej thiab sib pauv rau qhov tsis zoo" nqe lus.
Q: Dab tsi cuam tshuam rau tus nqi ntawm SPCE steel coils?
A: Cov yam tseem ceeb: ① Raw khoom nqi (hlau ore, coke); ② Specifications (thinner thickness thiab dav dav, siab dua chav tsev nqi); ③ Qib Nto (FC qib yog 5-10% siab dua FA qib); ④ Kev txiav txim kom muaj nuj nqis (cov khoom loj dua, tus nqi qis dua); ⑤ Lub voj voog xa khoom (kev txiav txim ceev muaj 10-15% tus nqi them); ⑥ Kev thauj mus los deb (qhov sib txawv ntawm cov nqi thauj mus los hauv hiav txwv / av).
Q: Yuav ua li cas txheeb xyuas qhov tseeb ntawm SPCE steel coils thaum kev yuav khoom? A: ① Txheeb xyuas cov ntaub ntawv pov thawj: Nws yuav tsum suav nrog lub tshuab steel lub npe, lub tshuab hluav taws xob cov khoom siv hluav taws xob, cov tshuaj muaj pes tsawg leeg, cov khoom siv tshuab, thiab lwm yam. ② Kev tshuaj ntsuam xyuas: Pab pawg thib peb- tog koom haum (xws li SGS) los ntsuas cov cim tseem ceeb xws li elongation thiab yield zog; ③ Kev kuaj pom pom: Daim ntawv lo yuav tsum qhia qib "SPCE" thiab tus lej qauv, thiab qhov chaw yuav tsum tsis muaj qhov pom tseeb oxide nplai lossis khawb.
Q: Txoj kev them nyiaj rau SPCE steel coils yog dab tsi?
A: Kev lag luam tus qauv: ① T / T (telegraphic transfer): 30% them ua ntej + 70% them ua ntej xa khoom; ② L / C (tsab ntawv ntawm credit): tsim nyog rau kev txiav txim loj loj; ③ Kev txiav txim me me: Qee tus neeg muag khoom txhawb nqa nyiaj ntsuab ntawm kev xa khoom (yuav tsum tau tshuaj xyuas kev tsim nyog), cov ntsiab lus sib tham.
Q: Dab tsi yog lwm txoj hauv kev rau SPCE steel coils? A: ① Kev xaiv hauv tsev: DC04 (sib sib zog nqus- kos txias- dov steel) ntawm GB / T 13237 tus qauv, nrog kev ua tau zoo ze rau SPCE; 1. ③ Siab-kawg lwm txoj: SPCEN (carburized sib sib zog nqus{10}} kos duab hlau), haum rau qhov sib sib zog nqus heev- kos duab scenarios, tab sis nrog tus nqi ntau dua 30% siab dua.