Lwm lub npe rau txias dov steel yog dab tsi?
Txias-rolled steel yog paub los ntawm ob peb lwm lub npe thiab cov qauv tsim thoob ntiaj teb cov qauv, ua rau nws tseem ceeb rau cov neeg yuav khoom, cov kws tsim khoom, thiab pab pawg muag khoom kom nkag siab txog nws cov lus sib hloov. Hauv kev lag luam steel, txias-rolled steel feem ntau hu ua CR steel, txias-txo steel, CRS, txias-rolled sheet (CRS), lossis txias-rolled coil (CRC). Hauv cov cheeb tsam sib txawv, nws kuj tseem yuav raug txheeb xyuas los ntawm cov lej tshwj xeeb xws li DC01, DC03, DC04, DC05, DC06, thiab DC07 hauv EN 10130 tus qauv, lossis SPCC raws li JIS G 3141 tus qauv.Cov npe lwm yam pab faib cov khoom raws li daim ntawv thov, qhov zoo, thiab kev ua haujlwm zoo.
1. Kev sib piv qib siab
Table 2. DC01–DC07 Qib Kev Ua Haujlwm
| Qib | Formability | Yield zog | Daim ntawv thov tseem ceeb |
|---|---|---|---|
| dc01 ua | ★★☆☆☆ | Nruab nrab | Txee, brackets, profiles |
| dc03 ua | ★★★☆☆ | qis | Automotive qhov chaw yuav tsum tau kos duab |
| dc04 ua | ★★★★☆ | Tsawg | Cov khoom siv vaj tse |
| dc05 ua | ★★★★☆ | Tsawg heev | Sib sib zog nqus- kos cov khoom |
| dc06 ua | ★★★★★ | Ultra - Tsawg | Roj tank, cov duab complex |
| dc07 ua | ★★★★★ | qis tshaj | Precision multi-theem sib sib zog nqus kos duab |
Qhov kev nce qib ntawm DC01 mus rau DC07 qhia txog kev ua kom muaj zog ntxiv thiab txo qis zog.
2. Kev faib tawm ntawm Cold Rolled Steel Qib
EN 10130 tus qauv siv dav hauv kev lag luam thoob ntiaj teb suav nrog cov qib tseem ceeb hauv qab no:
Table 1. Txias Rolled Steel Qib Classification
| Qeb | Qib | Kev piav qhia |
|---|---|---|
| Kev Lag Luam Zoo | dc01 ua | General forming thiab dabtsi yog khoov |
| Kev kos duab zoo | dc03 ua | Haum rau kev kos duab nruab nrab |
| Deep Drawing Zoo | DC04, DC 05 | Zoo dua ductility, tsis tshua muaj zog tawm los |
| Ultra-Drawing tob | dc06, ua 07 | Maximum elongation rau complex duab |
Cov pawg no pab txiav txim siab seb qib twg tsim nyog rau cov ntawv thov xws li kev khoov yooj yim mus rau siab -xav tau ntau- theem tsim.
3. Cov qib khoom sib npaug thoob ntiaj teb
Cold rolled steel muaj qhov sib npaug hauv lwm cov qauv loj xws li JIS hauv Nyiv, ASTM hauv Tebchaws Meskas, thiab ISO thoob ntiaj teb.
Table 3. Ntiaj teb no sib npaug ntawm Cold Rolled Steel Qib
| EN Qib | JIS sib npaug | ASTM sib npaug | Sau ntawv |
|---|---|---|---|
| dc01 ua | SPCC | A1008 CWJ | Kev lag luam hlau |
| dc03 ua | SPCD | A1008 DS | Daim duab hlau |
| dc04 ua | SPCE | A1008 DDS | Sib sib zog nqus nqus hlau |
| dc05 ua | SPCE-SD | A1008 UAS | Kev kos duab sib sib zog nqus |
| dc06 ua | SPCF | A1008 EDDS+ | Ntxiv - kos duab sib sib zog nqus |
| dc07 ua | SPCE-SD (ze tshaj) | EDDS | Ultra sib sib zog nqus kos duab |
Cov lus no pab cov engineers hloov cov ntaub ntawv thaum qee cov qib tsis muaj nyob hauv khw hauv zos.
Peb lub tuam txhab tseem tuaj yeem muab cov khoom txias txias hauv qab no - dov steel qib:
DC01 - Tsim los rau cov txheej txheem tsim cov txheej txheem xws li khoov, embossing, hlaws thiab cov qauv kos duab.
DC03 - Npaj rau kev thov ntau daim ntawv thov, suav nrog kev kos duab sib sib zog nqus thiab ntau qhov profile.
DC04 - Haum rau cov ntawv thov uas xav tau qib siab ntawm formability.
DC05 - Ib qho sib sib zog nqus- qib kos duab tsim kom tau raws li qhov yuav tsum tau ua siab heev.
DC06 - Ib qho tshwj xeeb sib sib zog nqus- qib kos duab tsim rau qhov kev xav tau siab tshaj plaws hauv kev ua kom txias.
DC07 - Ib qho kev sib sib zog nqus tob heev -qib duab kos rau kev ua haujlwm hnyav thiab nyuaj heev.
