Q1: Cov teeb meem twg yuav tsum tau them nyiaj rau thaum yuav Q235C cov kav hlau?
Thaum kev yuav Q235C cov kav hlau, koj yuav tsum tau them sai sai rau cov hom, qhov loj me (pleev xim rau sab nraud), lub zog xim ( Lub hom yuav tsum muaj kom meej meej Q235C, tsis Q235A / B, kom ntseeg tau tias tsawg-kub. Cov qauv siv tau yuav tsum tau xaiv raws li lub hom phiaj, xws li GB / T 3091 (Welded yeeb nkab) thiab GB / T 8162 (seamless yeeb). Qhov kev nkag siab ntev ntev yuav tsum ua raws li GB / T 17395 cov kev cai kom zam cov teeb meem sib dhos. Cov khoom xa tuaj cuam tshuam rau kev ua haujlwm. Kub-Rolled kav tau tus nqi qis tab sis tsis muaj nuj nqis, thiab txias-rub cov kav dej muaj ntau qhov ntev. Cov kev kho saum npoo av yuav tsum tau xaiv raws li kev siv ib puag ncig. Galvanizing lossis kev pleev xim yog pom zoo rau kev siv sab nraum zoov.
Q2: Dab tsi cuam tshuam rau tus nqi lag luam ntawm Q235C cov kav hlau?
Tus nqi ntawm Q235C cov yeeb nkab cuam tshuam los ntawm tus nqi ntawm raw khoom (cov txheej txheem hlau), cov khoom siv tsim khoom thiab cov nqi thauj khoom thiab cov txheej txheem kev thauj khoom. Hloov pauv nyob rau hauv tus nqi billet (xws li tus nqi nce ntawm hlau ore thiab Coke) yuav kis tau ncaj qha rau tus nqi ntawm cov kav hlau. Hauv cov txheej txheem ntau lawm, cov kav dej seamless yog kim dua welded kav, thiab txias-rub cov kav dej yog kim dua cov kav dej kub. Nyob rau hauv cov nqe lus ntawm kev ua lag luam thiab kev thov, cov nqi yuav nce thaum lub caij tsis muaj kev tsim kho (xws li lub caij nplooj ntoo hlav). Cov nqi thauj mus los muaj cuam tshuam ntau dua rau kev ua tiav ntawm cov txheej txheem ntawm cov khoom loj, tshwj xeeb tshaj yog cov kav hlau loj. Kev kho deg (xws li galvanizing) yuav nce nqi los ntawm 20-30%. Ib qho ntxiv, hom hwm thiab xaj ntim thiab xaj ntim yuav cuam tshuam tus nqi, thiab kev yuav khoom feem ntau muaj kev txo nqi. Nws raug nquahu kom sib piv cov nqi los ntawm ntau cov channel thiab them sai sai rau steel nqe ntsuas (xws li co hniav) los tuav lub sijhawm kev yuav khoom.
Q3: Yuav ua li cas paub qhov txawv ntawm cov khoom lag luam ib txwm muaj thiab cov khoom lag luam hauv Q235C cov kav hlau?
Q235C cov kav hlau hlau los ntawm cov ntawv pov thawj tsis tu ncua yuav muab cov ntawv pov thawj zoo (MTC), cov ntawv ceeb toom xeem thib peb thiab pib sib koom ua ke. Cov khoom tsis zoo feem ntau muaj teeb meem xws li kev sib txawv loj, cov kab nrib saum npoo av, thiab substanard tshuaj lom neeg. Lawv tuaj yeem txheeb xyuas raws li cov hauv qab no:
Tshawb xyuas qhov zoo: cov khoom lag luam tsis muaj xeb loj, folding lossis weld nodules.
Kev ntsuas qhov ntev: Lub phab ntsa tuab ntawm cov tub rog qis qis yog qhov tsis ncaj, thiab lub zes qe tshaj tus qauv.
Thov kev tiv thaiv cov ntaub ntawv: cov khoom lag luam tsis muaj MTC lossis cov ntawv ceeb toom xeem yog qhov pheej hmoo siab.
Sib piv cov nqi: Cov kav txheem sib piv cov kav hlau uas nyob deb hauv qab tus nqi lag luam yuav tau deev (xws li siv Q235A rau Impersonate Q235C).
Tshawb xyuas cov kev tsim muaj: Cov tuam txhab uas tau them ISO 9001, API 5L lossis CE ntawv pov thawj.
Q4: Dab tsi yog tus xa tawm ntawm Q235C cov kav hlau? Yuav xaiv li cas?
Tus me nyuam lub xeev ntawm Q235C cov kav hlau muaj xws li kub-rolled, khaub thuas-kos, noralized thiab analealed. Lub Xeev Kub-Rolled muaj tus nqi qis, tab sis qhov tseeb raug yog tsis zoo, uas yog tsim rau cov qauv kev dav dav. Lub xeev txias-kos lub xeev tau pom meej qhov ntev thiab du nto du, uas haum rau kev siv tshuab. Kev ua kom zoo nkauj tuaj yeem ua kom cov nplej ua kom zoo nkauj thiab txhim kho kev nruj, thiab haum rau qhov kub lossis kub muaj zog. Annealing tshem tawm cov kev ntxhov siab txias thiab yog tsim nyog rau cov duab kos lossis khoov. Thaum xaiv, koj yuav tsum xav txog txoj kev ua tom ntej (xws li vuam, txiav) thiab siv ib puag ncig (xws li tsawg kub). Piv txwv li, ib txwm pom zoo rau Welded qauv, thiab kev kos duab txias yog siv rau precision seem.
Q5: Cov qhab nia thoob ntiaj teb tau qhab nia thoob ntiaj teb ntawm Q235C kav steel?
Cov qhab nia thoob ntiaj teb sib luag ntawm Q235C suav nrog:
ASTM A36 (American txheem): Cov khoom siv mechanories zoo sib xws, tab sis C thiab MN cov ntsiab lus ntawm A36 yog siab dua.
EN 10025 S235JR (European Txuj Ci): Ze Ze Rau Q235b, Q235C tuaj yeem raug txheeb xyuas tawm tsam S235J0 (0℃cuam tshuam).
JIS SS400 (tus qauv Japanese): Lub zog yog sib npaug, tab sis SS400 tsis muaj kev cuam tshuam cov kev xav tau.
ISO 630 FE360B: Zoo ib yam li Q235b, Q235C tuaj yeem xa mus rau FE360C (cuam tshuam tus nqi yuav tsum tau lees paub).
Thov nco ntsoov tias cov qib kawm no tsis yog qhov sib npaug, yuav tsum tau ntsuas raws li cov qauv tsim qauv thiab cov kev xeem yuav tsum tau ua yog tias tsim nyog.
