Cov yeeb nkab hlau tsis sib xyaw ua ke yog ua los ntawm cov hlau sib xyaw ua cov khoom siv raw thiab tsim los ntawm cov txheej txheem xws li kub dov, txias dov lossis kos txias. Piv nrog cov yeeb nkab hlau carbon ib txwm, cov yeeb nkab hlau tsis sib xyaw ua ke muaj cov khoom siv kho tshuab zoo dua, tiv taus kub siab, tiv taus corrosion thiab cov yam ntxwv tshwj xeeb ntawm lub cev thiab tshuaj vim muaj cov khoom sib xyaw xws li chromium, molybdenum, nickel thiab vanadium. Lawv siv dav hauv kev lag luam xws li roj av, tshuaj lom neeg engineering, fais fab, boilers, thiab kev tsim khoom siv tshuab.
Cov xwm txheej tseem ceeb ntawm daim ntawv thov
1. Kev lag luam roj av
Cov kav dej rau cov chaw tawg roj av: xav tau kev tiv taus kub siab, kev tiv taus siab thiab cov khoom tiv thaiv xeb sulfur
Cov kav dej rau cov khoom siv chiv: Yuav tsum tiv taus kev xeb los ntawm ammonia, urea, thiab lwm yam.
Cov kav dej siv rau cov khoom siv polyester: Yuav tsum tau ua kom huv si thiab tiv taus kev xeb los ntawm tshuaj lom neeg
2. Kev Lag Luam Fais Fab
Cov kav dej rau cov chaw nres tsheb fais fab: Cov kav dej boiler siab, cov kav dej superheater, thiab lwm yam, yuav tsum tiv taus qhov kub siab nkag.
Cov kav dej fais fab nuclear: Yuav tsum muaj cov khoom tiv taus hluav taws xob tshwj xeeb
3. Kev Tsim Khoom Siv Tshuab
Cov yeeb nkab hydraulic: Kev ua haujlwm siab thiab lub zog siab
Cov raj xa dej: Yuav tsum tau hnav tsis kam siab
Lub raj xa hluav taws xob ntawm lub tsheb: Lub zog siab, kev tawv siab
4. Kev Tsim Kho Dav Hlau
Cov raj cav: Cov raj hlau uas tiv taus kub thiab txias
Cov kav dej hydraulic: Cov kev xav tau lub zog siab heev
Cov qauv thiab cov kev cai ntawm cov khoom siv sib xws
1. Cov qauv ASTM series
ASTM A335Cov kav hlau tsis muaj qhov sib txuas rau kev siv kub siab, ferritic alloy steel
Cov lej qauv: P5 Alloy Yeeb Nkab, P9, P11, P22, P91, thiab lwm yam.
Lub zog kub siab, cov khoom antioxidant, kev ua tau zoo creep
Daim Ntawv Thov: Chaw nres tsheb fais fab boilers, roj av tawg units
ASTM A213: Cov kav hlau tsis sib txuas rau cov boilers, superheaters thiab cov cua sov sib hloov
Hom raj mis: T5, T9, T11, T22, T91, thiab lwm yam.
Lub zog ua haujlwm kub thiab cov khoom tiv thaiv antioxidant
2. DIN/EN Txheem Series
DIN 17175/EN 10216-2: Cov Kav Hlau Tsis Muaj Qhov Txuas Rau Cov Kev Siv Kub Siab
Qib: 13CrMo4-5, 10CrMo9-10, X10CrMoVNb9-1 (P91)
Lub zog nkag mus rau hauv qhov kub thiab txias siab thiab kev ua haujlwm vuam
3. GB Txheem Series
GB 5310: Cov Kav Hlau Tsis Muaj Qhov Txuas Rau Cov Boilers Siab
Qib:15CrMoG, 12Cr1MoVG, 10Cr9Mo1VNb, thiab lwm yam.
Lub zog kub siab, cov khoom antioxidant, kev ua haujlwm zoo
GB 9948: Cov Kav Hlau Tsis Muaj Qhov Txuas Rau Kev Nchuav Roj Av
Qib: 12CrMo, 15CrMo, 1Cr5Mo, thiab lwm yam.
Tiv taus qhov kub siab sulfur corrosion thiab hydrogen puas tsuaj
Lub zog kub siab, kev ua haujlwm vuam
Cov ntsiab lus alloying ib txwm muaj thiab lawv cov haujlwm
Chromium (Cr): Ua kom cov oxidation tsis kam, tiv taus corrosion, thiab ua rau lub zog kub siab dua
Molybdenum (Mo): Ua kom muaj zog kub thiab tiv taus kev nkag mus
Nickel (Ni): Ua kom muaj zog, tiv taus corrosion, thiab txhim kho kev ua haujlwm kub qis
Vanadium (V): Txo cov noob me me, ua rau lub zog thiab tawv dua
Niobium (Nb): Txhim kho kev tiv thaiv kev nkag thiab txhim kho cov khoom vuam
Titanium (Ti): Cov carbides ruaj khov, txhim kho kev tiv thaiv corrosion intergranular

Cov yeeb nkab hlau tsis sib xyaw ua ke, ua cov khoom siv tseem ceeb hauv kev lag luam, lawv cov kev ua tau zoo thiab qhov zoo cuam tshuam ncaj qha rau kev ua haujlwm zoo thiab lub neej ua haujlwm ntawm cov khoom siv. Kev xaiv cov qauv khoom siv thiab cov lus qhia kom raug, nrog rau kev tswj hwm cov txheej txheem tsim khoom thiab kev tshuaj xyuas zoo, yog qhov tseem ceeb rau kev ua kom ntseeg tau tias cov kav dej ua haujlwm tau zoo.