Cold dov steel kauj
Cold dov steel kaujyog ib qho tseem ceeb hauv kev tsim khoom, muaj nuj nqis rau nws qhov chaw du thiab zoo ib yam khoom siv kho tshuab -tab sis txawm tias sab saum toj - cov coils zoo underperform yog tias lawv qhov hnyav thiab txoj kab uas hla tsis zoo nrog koj cov txheej txheem ntau lawm. Coil hnyav thiab txoj kab uas hla ncaj qha tsim cov khoom txuas ntxiv, cov nqi pov tseg, cov cuab yeej siv tau ntev, thiab lub zog ua haujlwm. Rau cov tuam txhab lag luam, kev ua raws cov kev txwv no nrog koj qhov kev ua haujlwm yog tus yuam sij rau kev txiav cov nqi thiab txhawb cov khoom tsim tawm, thiab nkag siab txog lawv cov kev cuam tshuam tsis zoo yog qhov tseem ceeb rau kev paub txog kev yuav khoom.
Kev tsim khoom txuas ntxiv yog qhov feem ntau raug mob ntawm qhov tsis zoo coil sizing. Coil hloov yuam kev tsis tau npaj tseg rau lub sijhawm poob haujlwm-10–30 feeb rau ib qho kev sib pauv, nyob ntawm kev siv lub tshuab hluav taws xob. Ib txoj kab me me - teev siv 5 MT lub teeb coils yuav xav tau 8 hloov pauv ntawm 16 teev ua haujlwm, poob 80 feeb ntawm kev tsim khoom txhua hnub; 15 MT hnyav coil, los ntawm qhov sib piv, khiav 4-5 teev ncaj, slashing hloov los ntawm 50%. Qhov kev poob qis no ntxiv, nrog kev poob txhua hli sib npaug rau kaum ob teev ntau lawm rau cov neeg siv lub teeb coil. Heavy coils kuj txhawb cov kab nrawm dua: lawv txoj kab loj dua sab nraud tswj qhov nro tsis tu ncua rau cov kab hluav taws xob siab ceev (txog 100 meters ib feeb), thaum lub teeb coils poob nro raws li lawv unwind, yuam slowdowns uas txiav tawm los ntawm 10-15%.
Txias-rolled steel coil Hoobkas
Cov nqi khib nyiab, tus nqi tsim khoom loj, yog nruj nreem txuas rau coil hnyav. Lub "lub taub hau" thiab "tail" ntawm txhua lub kauj (100-150 kg tag nrho) raug muab pov tseg vim kev tuav kev puas tsuaj thiab tsis sib xws tension-qhov no sawv cev rau 3-4% ntawm 5 MT lub teeb coil, tab sis tsuas yog 0.7-1% ntawm 15 MT hnyav kauj. Tshaj 100 lub hli coils, qhov no txhais tau rau 300+ kg ntawm seem ntxiv rau cov neeg siv lub teeb coil. Mismatched diameters exacerbate pov tseg ib yam nkaus: ib tug oversize coil ua rau tension fluctuations, ua rau misalignment nyob rau hauv stamping los yog slitting thiab ib tug 5-8% siab dua tus nqi rau precision qhov chaw.
Cov khoom siv lifespan thiab lub zog ua haujlwm kuj raug kev txom nyem los ntawm qhov tsis zoo. Uncoilers thiab nro tshuab yog tsim los rau kev txwv qhov hnyav; overloading ib tug me me 8 MT uncoiler nrog 12 MT coils ua rau ntxov ntxov bearing thiab gearbox tsis ua hauj lwm, nrog rau cov nqi hloov ntau tshaj $10,000. Lub teeb coils, lub sijhawm no, quab yuam kom nrawm nrawm (vim ntau qhov kev hloov pauv), kev siv zog nce ntxiv -raws li International Steel Association, cov neeg siv coil hnyav siv 8-12% tsawg zog ib tuj ntawm cov hlau ua tiav dua li cov siv lub teeb coils.
Cov lus hauv qab no qhia txog cov kev cuam tshuam rau cov kab hluav taws xob uas siv tau zoo (16hrs / hnub, 22 hnub / hli, 1.5mm tuab / 1.2m dav coils):
| Coil Nyhav | Khiav Sijhawm / Coil | Lub hli poob | Lub hli tso zis | Qhwv tus nqi | Kev siv zog (kWh/MT) |
|---|---|---|---|---|---|
| 5 MT (Lub teeb) | 20.8 nqi | 43.0h ib | 19,200 ib | 3.5% | 125 |
| 10 MT (nruab nrab) | 41,7 nqi | 21.5h ib | 21,600 ib | 2.5% | 115 |
| 15 MT (hnyav) | 62,5 nqi | 14.2 h ua | 22,800 ib | 2.0% | 105 |
Cov txiaj ntsig no tsuas yog tuav yog tias coils phim koj cov cuab yeej txwv tsis pub dhau -ib 18 MT- ntsuas uncoiler yuav raug kev puas tsuaj los ntawm 20 MT coil, tshem tawm tag nrho cov txiaj ntsig tau zoo. Ib txwm hla -reference coil specs nrog koj cov khoom siv phau ntawv thiab ua haujlwm nrog tus neeg muag khoom kom sib npaug qhov hnyav, txoj kab uas hla, thiab kev xav tau ntau lawm.
Ntawm GNEE STEEL, peb tailor pebtxias dov steel kaujmuab rau koj qhov kev ua haujlwm, nrog tus qauv 3-20 MT qhov hnyav thiab 508/610mm inner diameters, ntxiv rau kev cai sizing rau cov kab tshwj xeeb. Peb nyob hauv -kab tswj kev tswj xyuas kom muaj kev tiv thaiv nruj thiab nruj nruj, txo qis sijhawm thiab pov tseg. Ntxiv rau qhov txias dov coils, peb muabkub dipped galvanized steel kaujrau corrosion kuj,xim coated steel kaujrau kev siv aesthetic,galvalume steel kaujrau siab -kub siv, thiabcorrugated steel ntawvrau kev tsim kho.
Yog tias koj npaj txhij los ua kom zoo dua koj cov khoom tsim nrog qhov loj me me txias dov steel kauj, tawm lus nug hnub no. Peb cov kws tshaj lij yuav tshuaj xyuas koj cov khoom siv thiab kev ua haujlwm, muab cov lus qhia ntxaws ntxaws, thiab pab koj xaiv cov coils uas txhawb nqa kev ua haujlwm thiab txiav nqi- haum rau koj qhov kev tsim khoom.
- Common cold-qib dov:
|
Qib Steel |
Yield zog (MPa) min |
Tensile zog (MPa) min |
Elongation % min |
Qub Description |
|
dc01 ua |
Tsawg dua los yog sib npaug li 280 |
270-410 |
28 |
Peb 12-03 |
|
dc03 ua |
Tsawg dua lossis sib npaug li 240 |
270-370 |
34 |
Peb 13-03 |
|
dc04 ua |
Tsawg dua los yog sib npaug li 210 |
270-350 |
38 |
Peb 14-03 |
|
dc05 ua |
Tsawg dua los yog sib npaug li 180 |
270-330 |
40 |
Peb 15-03 |
|
dc06 ua |
Tsawg dua los yog sib npaug li 170 |
270-330 |
41 |
- |
|
dc07 ua |
Tsawg dua los yog sib npaug li 150 |
250-310 |
44 |
- |
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