Cov lus qhia ntxaws ntxaws
1. Lub ntom ntawm Q550NH
Lub ntom ntawmQ550nh yog kwv yees li 7.85 g / cm³(lossis 7850 kg / mg).
Tus nqi no yog tus qauv tas li rau feem ntauTsawg -} alloy thiab carbon hlau, suav nrog cov qhab nia ntawm Qib Q235b, Q355B, S355JR, thiab ASTM A36.
2. Vim li cas lawv hnyav tib yam
Hlau lub ntom ntom yog feem ntau txiav txim los ntawm cov qauv atomic ntawm cov hlau.Lub hauv paus hlau rau tag nrho cov qauv no yog hlau, uas muaj qhov ceev ceev.
Alloying elements like copper (Cu), chromium (Cr), and nickel (Ni)-which are added to Q550NH for weathering resistance-have densities close to that of iron. Ntxiv rau lawv hauv cov khoom me me (feem ntau yog tag nrho tsawg dua 3-4%) tsis hloov qhov ceev dua ntawm cov khoom siv.
3. Qhov sib txawv tiag: lub zog - rau {{2} txoj kev nyhav
Nov yog lub tswvyim tseem ceeb tshaj plaws kom nkag siab. Thaum lubqho hnyavyog tib yam, tusua yeeb yamtsis yog:
Lub zog siab dua:Q550nh muaj aYam tsawg kawg nkaus los lub zog ntawm 550 MPA, uas yog ntau dua li ntawd ntawm cov hlau dog dig (piv txwv li, Q235B tau muaj txiaj ntsig lub zog ntawm 235 MPa).
Cov Txheej Txheem Teeb:Vim tias Q550NH muaj zog dua, ame dua hla -} seem(cov khoom siv tsawg dua) tuaj yeem txhawb nqa tib yam li cov hlau loj dua ntawm cov hlau zoo tib yam.
Qhov tshwm sim:Tus qauv tsim los ntawm Q550NH tuaj yeem ua taulub ntais txhuamtshaj li ib qho ua los ntawm cov hlau zoo tib yam thaum ua tiav tib lub zog, ua tsaug rau nws zoo duaLub zog - rau - qhov hnyav} qhov hnyav. Piv.
4. Cov Hluav Taws Xob Hluav Taws Xob
Xav tias koj xav tau ib lub nqaj nrog qee yam thauj khoom - cov kabmob muaj peev xwm.
| Khoom | Paib lub zog | Yuav tsum hla hla - ntu ntu | Tus txheeb ze hnyav |
|---|---|---|---|
| Q235B (Hlau Hlau) | 235 MPa | 100 CM² | 100% (baseline) |
| Q550NH (Weathering Hlau) | 550 MPa | ~ 43 cm² | ~43%(Sib dua!) |
