Lo lus nug 1: Dab tsi yog qhov zoo ntawm Astm A335 P9 steel yeeb nkab?
Qhov muaj txiaj ntsig zoo tshaj plaws ntawm Astm A335 P9 steel yeeb nkab yog nws qhov siab zoo heev {}}}}}}}}}}} kev ua haujlwm ruaj khov hauv qab 600 degree. Nws muaj cov oxidation zoo nkauj thiab corrosion tsis kam, ua rau nws haum rau high-}}} muaj xov xwm. Cov yeeb nkab steel hlau no tseem muaj lub zog sib luag, nrog lub zog tensile muaj zog tshaj 415 mpa thiab cov txiaj ntsig muaj zog ntau tshaj 205 MPa. Piv rau siab dua- ntaub ntawv ineoy, P9 steel muaj tus nqi zoo dua- kev piv txwv thiab yog tus nqi qis. Tsis tas li ntawd, nws zoo heev weldability thiab machinability qhia txog - chaw tsim thiab txij nkawm.
Lo lus nug 2: Cov kev txwv ntawm Astm A335 P9 steel yeeb nkab?
P9 steel yeeb yeeb tshuaj ua rau muaj cov kua qaub tsis zoo hauv cov kua muaj zog lossis kev ua kom muaj kev ntxhov siab rau kev sib tsoo. Thaum nws qis - sov nruj ua tau raws cov qauv, nws tsis haum rau siv tsawg {4}- 29} 29 degree). Piv nrog usteneric stainless hlau, P9 STEEN ShoTRETS tsis muaj zog corrosion tsis kam. Thaum ntev -} kev pab kub-kev pab kub, nkag mus rau cov yuav tshwm sim. Tsis tas li ntawd, nws yog qhov nyuaj rau cov txheej txheem dua li cov hlau siv hlau, xav tau ntau cov txheej txheem tswj tau ntau dua.
Nqe Lus Nug 3: Dab tsi yog qhov zoo thiab tsis zoo ntawm Astm A335 P9 steel yeeb nkab piv rau Stainless Hlau?
P9 Steel Yeeb Nkab Tseem Ceeb Tshaj Plaws Outperforms feem ntau Austenitic stainless hlau hauv siab- cov siab ib puag ncig hauv qab 600 degree. Nws cov coeffal kev nthuav dav yog qis dua li ntawm stainless hlau, ua rau muaj kev ntxhov siab tsawg thaum lub sijhawm kub. Nyob rau hauv cov nqe lus ntawm tus nqi, P9 hlau yog kwv yees li 30 {}}}}}} 50% pheej yig dua 300 series tsis muaj yig. Txawm li cas los xij, stainless hlau muaj cov txiaj ntsig tseem ceeb hauv kev txhim kho corrosion tsis kam, ua rau nws haum rau kev tshaj tawm cov xov xwm uas muaj chloride ions. Tsis tas li ntawd, Stainless hlau tau zoo dua qhov qis-ntsuas kub heev, tso cai rau nws siv rau qhov kub thiab txias ntau.
Lo lus nug 4: Cov teeb meem tseem ceeb yuav tshwm sim nrog ntev- sij hawm kev pab ntawm Astm A335 P9 steel yeeb nkab?
Lub siab ua siab kub - kev pab cuam tuaj yeem ua rau co nplai thickening thiab flaking tshav kub hloov efficiency thiab muaj peev xwm thaiv cov yeeb nkab. Sulfide kev nyuaj siab corrosion tej zaum yuav tshwm sim hauv leej faj-}}}}}} cuam tshuam cheeb tsam ntawm welds. Kev puas tsuaj rau kev puas tsuaj yog lwm qhov teeb meem tshwm sim, ua kom pom kev tsim ntawm cov nplej conds thiab microcracks. Thermal rog tuaj yeem ua rau tawg hauv cov kav dej hauv qab hauv qab cov neeg mob cycling. Tsis tas li ntawd, tom qab ntev - Term pab, cov khoom siv cov khoom siv tawv yuav txo qis, nce txoj kev pheej hmoo ntawm brittle bacitture.
Lo lus nug 5: Cov yeeb nkab A335 P9 steel lossis lwm yam khoom siv tau xaiv raws li kev ua haujlwm?
Thaum xaiv, kev ua haujlwm kub yuav tsum tau txiav txim siab ua ntej. P9 steel yog feem ntau haum rau nruab nrab-} {{{{{}} qhov kev thov kub, xws li ntawm 400℃rau 600 degree. Rau cov leej faj -}} muaj cov pa roj carbon ntau dua li cov pa roj carbon, tab sis ib puag ncig acidic kuj yuav xav tau cov hlau tsis muaj. Kev Ntsuas Siab Puas yog Lwm Qhov Tseem Ceeb, nrog P9 Steel tau tsim nyog rau nruab nrab {}} {}} siab} qhov 10 mpa). Hais txog tus nqi - ua tau zoo, qis {16} - Cov khoom siv cov nqi yuav tsum tau ua ntej, muab lawv tau raws li kev ua tau zoo. Thaum kawg, yooj yim ntawm kev teeb tsa thiab txij nkawm, suav nrog cov khoom xws li vuam thiab machining nyuaj, yuav tsum tau ntsuas.
