Dab tsi yog qhov txawv ntawm A105 thiab A105N li qub?
I. Qhov sib txawv ntawm cov khoom sib xyaw
Tsis muaj qhov sib txawv tseem ceeb hauv cov khoom muaj pes tsawg leeg ntawm A105 li qub thiab A105N li qub. Ob leeg yog cov hlau tshwj xeeb, tshwj xeeb yog carbon steel. Txawm li cas los xij, A105N li qub yuav tau txais kev kho cua sov tshwj xeeb, xws li normalizing, hauv qee kis los txhim kho lawv cov khoom siv kho tshuab. Zuag qhia tag nrho, ob qho tib si tswj cov tshuaj sib xyaw ua ke, feem ntau muaj cov ntsiab lus xws li carbon, silicon, thiab manganese.
II. Kev sib piv ntawm txoj kev tsim
A105 li qub feem ntau yog tsim los siv cov txheej txheem forging, uas txhim kho cov khoom ntom ntom thiab txhim kho cov khoom siv kho tshuab thiab hnav tsis kam. Nyob rau hauv sib piv, A105N li qub yuav raug tsim los ntawm casting, tshwj xeeb tshaj yog haum rau tsim complex duab uas nyuaj rau ua tiav ntawm forging. Casting muaj ntau dua tsim yooj yim tab sis yuav qhia me ntsis sab hauv tsis xws luag nyob rau hauv cov khoom.
III. Qhov sib txawv ntawm Kev Ua Haujlwm
Vim muaj kev hloov pauv hauv txoj kev tsim, A105 thiab A105N li qub pom qhov sib txawv ntawm kev ua haujlwm. Forged A105 valves feature higher density and strength, enabling them to withstand greater impact forces, while also offering superior ductility and toughness compared to cast A105N. Txawm hais tias A105N tej zaum yuav qis me ntsis hauv qee yam, nws cov txheej txheem casting tso cai rau nws los siv rau hauv kev tsim cov khoom siv ntau dua.
Cov khoom siv ASTM A105N yog dab tsi?
Cov khoom siv yog carbon steel. A105N yog tus qauv ASTM hauv Asmeskas, qhov "A" qhia txog cov hlau ua los ntawm cov pa roj carbon zoo tib yam, thiab A105 yog tus lej lej. Nws tseem hu ua txias-forged steel, uas zoo ib yam li 20 steel. Cov ntsiab lus carbon nyob rau hauv cov qauv hlau feem ntau yog li ntawm 0.05% mus rau 0.7%, thiab qee zaum nws tuaj yeem nce mus txog 0.9%.
Dab tsi yog N sawv rau hauv A105N?
A105N qhia tias cov khoom tau dhau losnormalizing(Normalizing), thaum A105 tsis qhia txog kev kho cua sov. Nyob rau hauv ASTM A105 / A105M tus qauv, tsab ntawv suffixes yog siv los qhia txog kev kho cua sov:
N: normalizing
NT: Normalizing + Tempering
QTMuaj nuj nqi: quenching + tempering
Tiv tauj peb rau A105 / A105N Valve Khoom npe