Cov khoom xaiv rau high -}} kub ntev yuav tsum raug txiav txim siab raws li cov kev kub tshwj xeeb, cov yam ntxwv tawm thiab kev ntaus nqi siab. Hauv qab no yog cov kev xaiv cov ntsiab lus thiab cov ntsiab lus tseem ceeb rau cov kub kub:
Kev ntsuas kub thiab txias thiab cov khoom txuam
1. Nruab nrab - thiab siab - kub ntau (425-650 degree)
Cf8 {-} Ua kom sov-resistant steel (piv txwv li 304h / 310s stainless hlau):
Haum rau chav thiab cov me me corrosive media ntawm 425-550 degree. Cov ntsiab lus carbon ntxiv (ntau dua los yog sib npaug rau 0.04%) txhim kho cov neeg quav.
Cf8 {- siv cov kub-resistant hlau:
Tiv taus kub ntawm 550-650 degree, siv hauv cov ntawv thov xws li cov roj hnyav catalytic cracking. Molybdenum thiab niobium ntxiv rau txhim kho siab - kub lub zog.
2. High {- qhov kub thiab txias (650-816 degree)
CF8M {- Raws li kub kub - Tsis kam lees cov hlau (piv txwv li, 316L):
Tiv taus kub ntawm 650-730 degree, tiv taus cov sulphur corrosion, thiab haum rau catalytic nrum units. Carbide Sealing Deg (tungsten carbide - Raws cov txheej):
Hardness loj dua los yog sib npaug rau 85 hra, particle erosion tsis kam, haum rau high- kev ua haujlwm siab ntawm 550-816 degree
3. Ultra-High Temperature Range (>816 Qib)
CF8M {-} Reinterced Alloy / Tshwj Xeeb Alloy (xws li Inconel X-750):
Lub substrate tuaj yeem tiv thaiv kev ua haujlwm tsis tu ncua ntawm 730-816 degree, thiab tuaj yeem ncav cuag 1200℃rau lub sijhawm luv luv.
Cov nplaim hluav taws xob tej hub txheej (xws li zirconia):
Txhim kho cov thermal poob siab kuj, thiab ua ke nrog cov qauv tsim qauv (xws li peb npaug eccentric hlau ntsaws ruaj ruaj.
Cov Khoom Siv Khoom Siv Cov Khoom Siv Cov Khoom Siv
| Khoom Hom | Cov ntsuas kub sab saud (degree) | Noob siab ua lus | Cov Ntawv Thov |
|---|---|---|---|
| 310s Stainless Hlau | 1200 | Muaj zog antioxidant thaj chaw thiab tus nqi nruab nrab | Metallurgy, flue roj kho li qub |
| Hastelloy alloy C-276 | 720 | Tiv taus ntub chlorine corrosion | Kev kub siab valve rau hydrochloric acid nruab nrab |
| Carbide Valve Lub Rooj | 816 | Hnav - Tsis kam thiab erosion - tsis kam, lub neej ntev | Kev Lag Luam Kev Lag Luam Hluav Taws Xob, pob li qub muaj cov particle |
| Tej hub txheej | 1400 | Zoo heev boilal tsis kam | Huab Heev Kub Siab Ntaus |
Qhia Xaiv Kev Xaiv
Carbon Steel tsis pom zoo: nws qhov ntsuas kub tshaj plaws tsuas yog 350 degree, thiab nws yog qhov raug cuam tshuam rau kev txhim kho corrosion yog overheated.
PTFE Valve rooj kev txwv: nws ntev - lo lus kub tsis tshua yog lossis sib npaug rau cov neeg muaj kev tawm tsam txias yog tias overheated.
Chromium - molybdenum steel hloov:} {2} {}}}}}}}}}}}} muaj cov ntawv thov hauv qab 550 degree.
