Kev ua tau zoo nyob rau hauv huab cua
Q1: Dab tsi yog qhov ua tau cai siab tshaj plaws muaj nuj nqis rau A106b ntawm 400℃F (204 degree)?
A1:Raws li ASME boiler thiab siab vessel code, Tshooj II, Tshooj I I Tus nqi no yog muab tau los ntawm cov khoom siv tawm los lub zog thiab tensile lub zog ntawm kev nce kub, sib xyaw ua kev nyab xeeb. Cov kws tsim khoom siv siv cov kev ntxhov siab no los laij qhov tsawg kawg nkaus phab ntsa thickness rau kev tsim tsim siab thiab kub. Qhov no ua kom cov yeeb nkab khiav haujlwm yam tsis muaj kev nyab xeeb lossis nkag mus rau nws lub sijhawm pabcuam lub neej raws li cov kev mob no thermal.
Q2: Yuav ua li cas ntev {{- Todle raug rau siab kub cuam tshuam rau cov yeeb nkab siab rau A106B (tus cwj pwm nkag)?
A2:Ntev -}} Tod raug rau kub siab tshaj 425 Qib F) tuaj yeem ua rau nkag mus rau cov pa roj carbon hlau zoo li A106b. Creep yog qeeb, sijhawm - Hnub deffents ntawm cov khoom siv tsis txaus ntseeg ntawm qhov kub tsis tu ncua ntawm qhov kub. Thaum A106B yog ntsuas rau kev pabcuam txog li 400 degree, nws lub zog ploj zuj zus mus rau lub sijhawm ntawm cov chaw kub. Lub ASTM A106 Cov lus qhia tshwj xeeb suav nrog kev xav tau rau high - cov khoom kub kom txo qis kev pheej hmoo no. For applications approaching or exceeding this temperature limit, higher alloys with better creep resistance are often selected to prevent eventual failure and ensure long-term structural integrity.
Q3: Dab tsi yog qhov cuam tshuam kev cuam tshuam (charpy) yuav tsum muaj rau A106B yeeb nkab?
A3:Txheem ATM A106 tsis tau muab cov kev xeem Charpy cuam tshuam rau qib B. Nws txoj kev nruj me me muab cov tshuaj lom neeg thiab kev kho cua sov. Txawm li cas los xij, rau qis - kub kev pab lossis cov ntawv thov uas tsis muaj kev txhawj xeeb yog qhov kev txhawj xeeb (SR) tuaj yeem teev rau hauv kev xaj khoom. Piv txwv li, SR6 tuaj yeem ua yeeb yam kom xav tau Charpy V {}} tsis muaj zog los xij, kom muaj kev nyab xeeb rau kev nyab xeeb, uas yog qhov kev nyab xeeb rau kev nyab xeeb hauv qhov chaw uas tsis muaj zog.
Q4: Yuav ua li cas cov codal thermal cuam tshuam rau lub neej ntawm ib lub pas dej A106b?
A4:Thermal Cycling - breaked cua sov thiab txias {}}}}}}} piping system vim muaj kev txwv ntawm thermal expansion thiab consaction. Sij hawm dhau mus, qhov no tuaj yeem ua rau thermal nkees, muaj peev xwm ua rau kev pib ua thiab kev tawm tsam, tshwj xeeb tshaj yog thaum muaj kev ntxhov siab cov ntsiab lus xws li kev coj ua lossis kev hloov pauv. Cov yeeb nkab ua qauv thiab cov khoom siv sib luag pab tiv thaiv qhov no, tab sis kev tsim qauv tsim nyog yog qhov tseem ceeb. Qhov no suav nrog kev siv loopsion, pob qij txha, thiab kev txhawb nqa kom zoo kom tso cai rau kev txav mus los. Kev tshuaj xyuas ib txwm rau cov kab nrib pleb Quab zog tau pom zoo hauv cov tshuab uas yuav nquag pib- Ups thiab kaw.
Q5: Puas yog A106B tsim nyog rau cryogenic lossis tsawg - kub kev pab?
A5:Tsis yog, Txheem A106B tsis pom zoo rau cryogenic lossis qis -} kev pab kub. Raws li cov pa roj carbon hlau, nws undergoes a ductile- - brimtle hloov; Nws txoj kev nruj me me txo qis dua li qhov kub me poob qis dua hauv qab}}}}} 0 degree} 0 degree} 0 degree} 0 degree} 0 degree} 0 degree. Rau cov ntawv thov tsawg-ntsuas kub, cov ntaub ntawv zoo li ASTM A333 qib 6 (uas yog cov hlau uas muaj npib tsib xee) tau siv vim tias lawv tswj hwm lawv cov ntsiab lus ncaj qha mus rau -45℃(-50℃f). Siv A106B nyob rau hauv cov kev mob no yam tsis muaj kev tshuaj xyuas kom zoo yuav ua rau kev puas tsuaj rau kev puas tsuaj.
