Dab tsi yog qhov txias dov steel phaj?
1. Txias dov yog tsim los ntawm kub-kuav los tiag steel li raw khoom thiab dov nyob rau hauv lub chav tsev kub thiab hauv qab lub recrystallization kub. Cov phaj hlau uas tsim los ntawm cov txheej txheem txias dov yog hu ua cov hlau dov txias.
2. Lub thickness ntawm cov ntawv txias txias feem ntau tsis siab tshaj 8 hli thiab tsis qis dua 0.1 hli. Lub thickness ntawm cov ntawv txias-dov ua los ntawm cov chaw tsim khoom feem ntau yog tsawg dua 4.5 hli. Lub thickness thiab dav ntawm cov ntawv txias-dov yog hloov raws li cov neeg siv khoom xaj, thiab tuaj yeem hloov kho.
Raws li cov qauv:
GB905: txias dov puag ncig steel, square steel, hexagonal hlau
GB708: Cold dov steel daim hlau thiab strips
|
Qib |
Cov qauv khoom siv | Cov khoom loj (mm) | siv | |
| Nominal thickness | Nominal dav | |||
|
GB/T 708 TS EN 10130: 1998 JISG 3141: 2005 |
0.3-3.0 |
20-1600 |
Haum rau qhov chaw tsim los ntawm kev sib sib zog nqus stamping nrog kev sib sau riam | |
Kev ua tau zoo:
Nws muaj lub zog siab, tab sis tsis zoo toughness thiab weldability, yog qhov nyuaj, nkig, thiab muaj qhov ci ntsa iab.
DC01, DC02, DC03, DC04
|
Qib |
Yield zog RcLMpa | Tensile zog RmMpa | Elongation A80 hli% | Yas lim piv r90 | Lub zog hardening Performance index n90 |
|
dc01 ua |
140-280 |
270-410 |
Ntau dua lossis sib npaug li 28 |
||
|
dc02 ua |
140-240 |
270-370 |
Ntau dua lossis sib npaug li 34 |
Ntau dua lossis sib npaug rau 1.4 |
|
|
dc03 ua |
120-210 |
270-350 |
Ntau dua lossis sib npaug li 38 |
Ntau dua lossis sib npaug rau 1.8 |
Ntau dua lossis sib npaug rau 0.18 |
|
dc04 ua |
120-180 |
270-330 |
Ntau dua lossis sib npaug li 40 |
Ntau dua lossis sib npaug rau 2.0 |
Ntau dua lossis sib npaug rau 0.20 |
SPCC, SPCD, SPCE
|
Qib |
Yield zog RcLMpa | Tensile zog RmMpa | Elongation A80 hli% | Lub zog hardening Performance index n90 |
|
SPCC |
130~300 |
270~410 |
||
|
SPCD |
120~240 |
270~370 |
Ntau dua lossis sib npaug rau 1.3 |
|
|
SPCE |
120~210 |
270~350 |
Ntau dua lossis sib npaug rau 1.8 |
Ntau dua lossis sib npaug rau 0.18 |
Qhov txawv ntawm qhov txias dov thiab kub dov yog dab tsi?
1. Kub dov yog tsim cov sawb hlau tom qab lub slab yog rhuab los ntawm cov ntxhib dov zeb thiab cov xov zeb tiav. Tom qab kub-dov hlau uas ua los ntawm qhov kawg kawg zeb yog txias rau qhov kub thiab txias los ntawm laminar ntws, nws yog dov rau hauv sawb coils los ntawm coiler. Cov cua txias steel strip coils tau ua tiav los ntawm cov kab sib txawv nyob ntawm seb tus neeg siv xav tau. Nyob rau hauv layman cov ntsiab lus, cov rhuab steel billet (uas yog, liab-kub hlau nyob rau hauv TVs) yuav tsum tau dov ob peb zaug, thiab ces trimmed thiab ncaj rau hauv steel daim hlau. Qhov no yog hu ua kub dov.
2. Txias dov siv cov kub dov steel coils raws li cov khoom siv raw, thiab cov kub dov oxide nplai raug tshem tawm los ntawm pickling, thiab cov khoom tiav zoo li ib qho nyuaj. Vim yog kev ua haujlwm txias txias los ntawm qhov txias txias deformation, lub zog thiab hardness ntawm dov steel coils nce, thaum lub toughness thiab plasticity index kuj txo ib txhij. Yog li ntawd, lub stamping kev ua tau zoo yuav ntxiv deteriorate, thiab nws tsuas yog siv tau rau qhov chaw nrog yooj yim deformation, xws li me me screws nyob rau hauv kev lag luam. Cold-rolled steel coil yog ib qho ntawm cov khoom siv raw rau cov kab annealing ntawm kub-dip galvanizing nroj tsuag thiab yog dav siv. Qhov hnyav ntawm txias-dov steel coils feem ntau tsis tshaj 13.5 tons. Los ntawm txuas ntxiv dov lawv nyob rau hauv chav tsev kub, lub puab kab uas hla ntawm cov khoom kawg yog kwv yees li 6.1 meters.
