Cold rolled steel muaj nyob rau hauv ntau qib, txhua tus muaj cov yam ntxwv tshwj xeeb thiab kev siv. Cov qib no feem ntau yog txhais los ntawm cov qauv kev lag luam thiab cov kev qhia tshwj xeeb. Qee hom khaub thuas dov steel qib tau piav qhia hauv qab no:
Khoom Muag Khoom Zoo (CQ): Qhov no yog cov khoom siv txias txias tshaj plaws. Nws muaj qhov zoo ntawm qhov zoo, flatness thiab thickness kam rau ua. Nws feem ntau yog siv rau kev siv dav dav uas tsis tas yuav muaj cov khoom tshwj xeeb.
Drawn Quality (DQ): Cold rolled steel of drawn quality muaj siab formability tshaj cov hlau dawb. Nws yog qhov tsim nyog rau kev kos duab sib sib zog nqus thiab sib sib zog nqus cov txheej txheem, ua rau nws xaiv rau cov khoom siv hauv tsheb thiab cov khoom siv.
Deep Draw Quality (DDQ): DDQ steel muaj ntau dua formability dua DQ steel. Nws yog siv rau hauv daim ntawv thov sib sib zog nqus sib sib zog nqus qhov twg cov hlau yuav tsum ncab yam tsis muaj tearing lossis wrinkling, xws li cov dab dej hauv chav ua noj thiab cov khoom siv tsheb.
Extra Deep Drawing Quality (EDDQ): EDDQ steel yog qhov zoo tshaj plaws txias dov hlau rau kev sib sib zog nqus daim ntaub ntawv. Nws muab cov formability zoo heev thiab yog siv rau qhov xav tau tshaj plaws ntawm kev kos duab sib sib zog nqus.
Structural Steel (SS): Cold dov structural steel qib yog siv nyob rau hauv cov ntaub ntawv uas muaj zog thiab load nqa peev xwm yog qhov tseem ceeb. Cov no suav nrog kev tsim vaj tsev, txuas hniav thiab lwm yam khoom siv.
High Strength Low Alloy (HSLA): HSLA txias dov hlau ua ke nrog lub zog siab nrog kev txhim kho formability. Nws yog siv nyob rau hauv daim ntawv thov qhov twg ob qho tib si lub zog thiab formability yog ib qho tseem ceeb, xws li automotive chassis Cheebtsam.
Duplex (DP) Steel: DP steel yog ib qho khoom siv siab heev nrog lub koom haum duplex. Nws muaj lub zog siab thiab zoo heev formability rau automotive thiab hluav taws xob Cheebtsam.
Baked Hardened (BH) Steel: BH txias dov hlau yog ci tom qab ua kom nws nyuaj thiab muaj zog. Nws yog siv rau tsheb panels thiab lwm yam kev siv uas yuav tsum tau ntxiv zog tom qab molding.
Microalloyed Steel: Microalloyed steel txias dov steel muaj me me ntawm vanadium, niobium thiab lwm yam alloying ntsiab uas txhim khu nws lub zog thiab formability. Nws yog siv nyob rau hauv ntau yam kev siv, nrog rau cov yam ntxwv thiab automotive Cheebtsam.
Electro-galvanized (EG) Steel: Electro-galvanized txias dov hlau yog coated nrog ib txheej nyias ntawm zinc los ntawm cov txheej txheem electroplating. Cov txheej no yog corrosion resistant thiab feem ntau yog siv nyob rau hauv lub tsheb thiab khoom siv industries.
Cov no tsuas yog qee qhov piv txwv ntawm ntau qib ntawm cov hlau txias txias. Qhov kev xaiv ntawm qib nyob ntawm qhov kev xav tau tshwj xeeb ntawm qhov project lossis daim ntawv thov, nrog rau cov yam ntxwv xws li formability, lub zog, corrosion kuj thiab cov nqi txiav txim siab. Peb muab cov ncauj lus qhia ntxaws ntxaws rau txhua qib los pab cov neeg siv khoom xaiv cov khoom tsim nyog rau lawv cov kev xav tau. Thov koj xav tiv tauj peb yog tias koj xav tau kev pab.
