1.Tus nqi ntawm txias - dov kauj yog dab tsi?
Cov txheej txheem tsim khoom nws tus kheej qhia tau tias txias - dov coils yog qhov tseem ceeb tshaj li cov nplooj ntawv steel. Pickled steel sheets yog "semi-cov khoom tiav" ntawm kub-rolled coils, thaum txias-rolled coils yog "cov khoom tiav" tau txais los ntawm kev ntxiv "refining" ntawm cov ntawv hlau pickled.
Raws li cov ntaub ntawv hauv kev lag luam, tus nqi nyiaj ntsuab (suav nrog se) ntawm txias- dov coils muaj peb yam tseem ceeb: cov nqi ntawm cov khoom siv (feem ntau yog kub- dov los yog pickled coils, suav txog ntau dua 70%), tus nqi ua haujlwm (kwv yees li 400-450 yuan / ton), thiab lwm yam nuj nqis. Cov nqi ua haujlwm no ntau dua 400 yuan yog qhov laj thawj tseem ceeb vim li cas nws kim dua li cov nplooj ntawv steel. Qhov tseeb ntawm kev lag luam tus nqi sib txawv kuj tseem lees paub qhov no: thaum lub Kaum Ib Hlis 2025, lub teb chaws tus nqi nruab nrab ntawm 1.0mm txias -rolled coils yog kwv yees li 3903 yuan / ton, thaum tus nqi nruab nrab ntawm kub dov coils (3.0mm), cov khoom siv hauv paus, yog kwv yees li 3377 yuan / tuj, tus nqi sib txawv ntawm 526 yuan / ton.
Yog li ntawd, yog tias lub hom phiaj tsuas yog ua kom yooj yim cov txheej txheem, hloov cov nplooj ntawv steel nrog txias -rolled coils yog sib npaug rau cov nqi ntxiv ntawm tsawg kawg yog 400-500 yuan / tuj.
2.Dab tsi yog cov yam ntxwv ntawm kev ua haujlwm txias -rolled coils?
Surface Quality: du, ci ntsa iab, tsis muaj hlau oxide nplai, thiab du rau qhov kov.
Dimensional Accuracy: Siab precision; thickness kam rau ua yuav tswj tau nyob rau hauv ib tug tsis tshua muaj ntau yam me me.
Mechanical Properties: Tom qab txias dov thiab annealing, nws muaj tag nrho cov khoom zoo thiab muaj zog dua, tab sis nws cov ductility yog me ntsis qis rau siab - kub zoo- dov daim hlau.
Tus nqi: Siab (nrog rau cov nqi ua haujlwm ntawm kwv yees li 400-500 RMB / tuj)
3.Dab tsi yog qhov kev ua tau zoo ntawm cov ntawv hlau pickled?
Surface Quality: Qhov saum npoo yog ib qho xim matte nyiaj -grey, tsis muaj oxide nplai, tab sis tsis zoo li tus txias -rolled steel.
Dimensional Accuracy: Qhov tseeb yog nyob nruab nrab ntawm kub-rolled thiab txias-rolled steel, zoo dua kub-rolled tab sis tsis zoo li txias-rolled.
Mechanical Properties: Nws pib khaws cov ductility zoo ntawm kub -khoov hlau, ua rau nws tsim nyog rau kev sib sib zog nqus nqus thiab khoov nyuaj.
4.Dab tsi yog qhov tsim nyog rau cov khoom seem, siab - qhov tseeb qhov tseeb, thiab cov khoom uas yuav tsum tau ua kom zoo rau yav tom ntej?
Piv txwv muaj xws li precision gaskets, shielding Cheebtsam rau cov khoom siv hluav taws xob, los yog cov khoom vaj huam sib luag thiab cov khoom siv hauv tsheb. Cov ntawv thov no muaj qhov yuav tsum tau ua kom nruj rau qhov ua tiav ntawm qhov chaw thiab qhov tseeb qhov tseeb, yuav tsum tau siv cov txias- dov coils. Nyob rau hauv cov ntaub ntawv no, tus nqi ntxiv yog qhov tsim nyog peev los ua kom tau raws li cov khoom lag luam yooj yim ua haujlwm thiab cov kev xav tau zoo.
5.Dab tsi yog qhov yuav tsum tau ua rau txias- dov coils rau cov khoom siv sab hauv thiab cov khoom siv stamped uas tsis tshua muaj kev xav tau rau saum npoo tiav thiab precision?
Piv txwv li, muaj mounting brackets, internal reinforcing ribs, thiab cov khoom siv kho vajtse zoo tib yam. Cov khoom no tau muab zais rau hauv, tsis pom, thiab muaj kev txwv nruj me ntsis. Pickled steel ntawv tuaj yeem ua tau raws li qhov yuav tsum tau siv, txuag 400-500 yuan ib tuj nqi. Qhov no yog qhov tseeb tus nqi tseem ceeb ntawm kev ua lag luam ntawm cov ntawv hlau pickled - "txo cov nqi yuav khoom zoo rau cov neeg siv thaum ua kom ntseeg tau qhov kev xav tau zoo." Nyob rau hauv cov ntaub ntawv no, hloov cov nplooj ntawv steel nrog txias dov coils yog ib qho piv txwv ntawm kev ua hauj lwm overkill thiab yog heev uneconomical nyob rau hauv cov nqe lus ntawm tus nqi.