| 17MN4 Tshuaj Muaj pes tsawg leeg | |||||||
| Teem nqi | Lub caij max (%) | ||||||
| 17MN4 | C | Si | Mn | P | S | Al | Cr |
| 0.14-0.20 | 0.40 | 0.90-1.40 | 0.035 | 0.030 | 0.02 | 0.25 | |
| CU | Ni | Mo | Nb | Ti | V | ||
| 0.3 | 0.3 | 0.10 | 0.01 | 0.03 | 0.03 | ||
| Teem nqi | 17MN4 Cov Cuab Yeej Txhua Yam | |
| Qhov tuab | Pub | |
| 17MN4 | lub hli | Min MPa |
| 6-16 | 290 | |
| 16-40 | 285 | |
| 40-60 | 280 | |
| 60-100 | 255 | |
| 100-150 | 230 | |
1. Yuav tsum muaj cov txheej txheem kho cua sov li cas?
Teb:
Cov txheej txheem txheem txheem tsim:
Li no (880-950°C) for thickness >30mm
Raws li-dovrau thickness tsawg dua los yog sib npaug rau 30mm
Yeem Hais Txog Kev Ua Haujlwm Pabcuam(580-620 degree)
ThermomieNyanical Tswj Cov Txheej Txheem (TMCP)muaj rau cov khoom tau txhim kho
2. Dab tsi yog vuam cov txheej txheem pom zoo rau 17MN4?
Teb:
Qhov tseem ceeb vuam cov kev coj ua:
Preheat: 100-150°C (for t>25mm)
Cov neeg tau txais kev: DIN 8556 E 42 4 b 42 lossis sib npaug
Cov tswv yim tshav kub: 1.8-3.2 KJ / hli
Sib txuam Kub: Tsawg dua los yog sib npaug nrog 250 degree
Tom qab weld kev kho cua sov (pwht): 580-620°C × 1hr/25mm (for t>35 hli)
3. Qhov twg yog 17mn4 feem ntau teev?
Teb:
Cov ntawv thov feem muaj xws li:
Nruab Nrab-Siab Hlais(10-40 bar)
BOILER NKAUS THIAB HEADERS
Ua kom sov pob cua sov
Cov Khoom Siv Txheej Txheem Hauv Cov Nroj Tsuag Tshuaj
Kev Tso Tsheb Hlau Luam Rau Kev Siv
Sib piv nrog cov qhab nia zoo sib xws
| Teem nqi | Lub hom phiaj | Paib lub zog | Qhov tseem ceeb sib txawv |
|---|---|---|---|
| 17MN4 | DIN 17155 | Ntau dua los yog sib npaug rau 355 mpa | German tus qauv nrog kev ua kom zoo MN cov ntsiab lus |
| P355ghugh | En 10028-2 | Ntau dua los yog sib npaug rau 355 mpa | European sib npaug |
| A516 Gr.70 | ASTM | Ntau dua los yog sib npaug rau 260 MPa | US tus qauv, qis zog zog zog |
Cim npe nrov: Din 17155 17 mn4 rau siab ntsha phaj, Tuam Tshoj din {}} mn4 rau siab lub nkoj phaj tsim, cov chaw muag khoom, Hoobkas
