P355Gh yog qhov qis dua alloy muaj zog siab rau lub raj mis steel hlau nyob rau Europe cov qauv. Nws daim foos Yeeb Welded yog cov yeeb nkab ua los ntawm cov khoom siv steel phaj los ntawm vuam txheej txheem. Cov yam ntxwv tseem ceeb thiab kev siv yog raws li hauv qab no:
1. Khoom txhais thiab cov qauv
Cov qauv kev ua lag luam: Ua rau cov qauv qeb 10028-2
Kev Tshawb Xyuas Qib:
P: siab txog ntsha (siab txog ntsha);
355: Yam tsawg kawg cov meej mom zog ntau dua lossis sib npaug ntawm 355 MPa (qhov kub thiab txias dua lossis sib npaug nrog 16 hli);
G: Zoo grain steel (gefüge);
H: Kev thov kub siab (siab kub).
2. Tshuaj lom neeg sib xyaw (%)
| Lub ntsiab | C | Si | Mn | P tsawg dua lossis sib npaug | S tsawg dua los yog sib npaug | Nb, v, ti |
|---|---|---|---|---|---|---|
| Tau luag | 0.10–0.22 | Tsawg dua los yog sib npaug rau 0.60 | 1.10–1.70 | 0.025 | 0.010 | Tsawg dua los yog sib npaug rau 0.09 (tag nrho) |
3. Cov Khoom Siv Kho Tshuab
| Lub xeev | Paib lub zog | Lub zog tensile | Elongation | Kev Cuam Tshuam(-20 degree) |
|---|---|---|---|---|
| Nwmal kub | Ntau dua los yog sib npaug rau 355 mpa | 510-650 MPa | Ntau dua los yog sib npaug rau 22% | Ntau dua los yog sib npaug rau 27 j45 |
| Kev kub siab 300 tawm degree | Ntau dua los yog sib npaug rau 285 MPa | -- | -- | -- |
4. Kev tsim khoom thiab cov txheej txheem
Kev xa tawm cov xwm txheej: Kev kho mob ib txwm muaj (txhawm rau txhim kho kev sib txawv ntawm cov qauv);
Yuav tsum muaj kev vuam: preheating ua ntej v hlau loj dua los yog sib npaug rau 100℃(kom tiv thaiv cov kab nrib pleb);
Submerged Arc Vuam (pom) lossis cov vuam ntau zaus (HFW) raug pom zoo;
Kev Txais Kev Txais Kev Txais: 100% Ultrasonic qhov khuam kom nrhiav tau ntawm Welds (yuav tsum tau kom cov kav hlau tuab);
Muab rau 10204-3.1 Warranty.
5. Daim Ntawv Thov Cheeb Tsam
Kev kub siab rau cov nkoj: Boiler Drums (300-400 Durch Durch Serve);
Kev Siv Tshuaj Hluav Tshuaj: Reactor Thaum Tshav Kub Kub Truction (tiv taus hydrogen sulfide corrosion);
Cov khoom siv hluav taws xob: Chaw nres tsheb fais tseem loj loj cov raj kav (tiv taus luv luv xyoo kub siab ntawm 540 degree).
