Dab tsi hlau yog Hastelloy C276 Phaj?
Hastelloy C276 Phaj yog kev ua haujlwm siab rau tsib xee-raws li cov neeg muaj kev kub siab, muaj npe nrov rau nws cov kev ua tau zoo heev thiab muaj zog kub. Raws li cov kws tshaj lij laus hauv kev ua haujlwm ntawm cov ntaub ntawv ua lag luam, Kuv yuav nkag siab txog cov yam ntxwv ntawm hastelloy C276, cov qauv kev lag luam, cov qauv kev nkag siab thiab kev sib cav sib luag.
1. Kev tsis yog ntawm hastelloy C276 Phaj
Lub ntsiab Cheebtsam ntawm hastelloy C276 lub phaj muaj cov npib tsib xee (ni), chromium (CR), Molybdenum (mo) thiab lwm yam kab kawm. Nws cov tshuaj lom neeg muaj pes tsawg yog raws li hauv qab no:
Nickel (NI): 55-60%
Chromium (CR): 15-17%
Molybdenum (mo): 4-5%
Lwm cov ntsiab lus: kab kawm xws li carbon (c), si), thiab hlau (fe).
Qhov no muaj kev sib xyaw sib piv muab tshuaj hastelloy C276 Phaj zoo tshaj plaws corrosion, tshwj xeeb tshaj yog nyob rau hauv cov accochloric acid, sulfuric acid, sulfuric acid thiab ntub chlorine. Lub alloy kuj muaj qhov zoo kub lub zog thiab oxidation tsis kam, thiab yog haum rau kev kub-ib puag ncig ntawm {}} degree.
Hais txog cov khoom siv lub cev, lub ntom ntawm hastelloy c276 daim ntawv yog li 8. 6 g / melting taw tes yog nruab nrab {}} degree. Nws cov thermal conductivity yog tsawg, txog 11 w / min k, uas muaj qee qhov kev rwb thaiv tsev nyob hauv ib puag ncig kub.
2. Cov qauv kev lag luam thiab cov khoom lag luam hauv tsev thiab txawv teb chaws
Kev tsim khoom thiab kev thov ntawm hastelloy C276 daim ntawv yuav tsum ua raws li cov qauv kev lag luam. Cov hauv qab no yog ob tus qauv siv lag luam uas nquag:
ASTM B 446-19}: cov qauv no qhia cov khoom siv tshuaj lom neeg, cov kws kho mob cov neeg ua haujlwm ntawm Hastelloy C276. Raws li cov qauv ASTM, qhov tsawg kawg nkaus tensile lub zog ntawm C276 daim ntawv yog 850 MPa, cov txiaj ntsig, thiab elongation tsis tsawg tshaj 40%.
Ams 5641: Tus qauv no feem ntau yog tsom rau cov kev siv hauv Aerospace teb, thiab muab cov txheej txheem kho kom sov thiab zoo ntawm hastelloy C276 ntawv.
Los ntawm qhov kev pom ntawm kev ua lag luam hauv tsev thiab txawv teb chaws, tus nqi ntawm hastellloy c276 ntawv cuam tshuam los ntawm ntau yam. Raws li cov ntaub ntawv los ntawm LME (London hlau pauv) thiab Shanghai Unfedrous network ntawm Hastelloy C223 yog hais txog peb $} {}}}}}}}}}}}}}}}}}}}}}}} / kg. Qhov sib txawv no feem ntau yog vim khoom siv thiab kev thov, cov nqi thauj mus los thiab cov cai them se.
3. Cov khoom siv tsis to taub
Thaum xaiv hastelloy C276 ntawv, feem ntau tsis to taub muaj xws li:
Tsuas yog tsom rau tus nqi yam: Vim yog tus nqi siab ntawm Hastelloy C276 ntawv, qee tus neeg muab khoom yuav tuaj yeem nyiam cov neeg siv khoom uas muaj nqi qis. Tsawg dhau tus nqi feem ntau txhais tau tias cov khoom ua tau zoo tsis tau nce rau cov qauv, uas yuav ua rau muaj cov teeb meem kev ua tau zoo hauv kev siv tom ntej. Yog li ntawd, tus nqi, kev ua tau zoo thiab cov khoom lag luam tsim nyog yuav tsum tau txiav txim siab tsis to taub thaum xaiv.
Qhov muag tsis pom kev ntawm cov ntsiab lus chromium thiab siab Molybdenum cov ntsiab lus: txawm tias cov ntsiab lus ntawm alloy thiab txawm tsim teeb meem xws li intergranular corrosion. Yog li ntawd, thaum xaiv cov ntaub ntawv, cov tshuaj muaj peev xwm tsim nyog yuav tsum tau xaiv raws li cov xwm txheej kev thov tshwj xeeb.
Tsis quav ntsej ua kev ua tau zoo: kev ua haujlwm ntawm Hastelloy C276 Phaj kuj tsis zoo, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem txias thiab kub yooj yim, nws yog ib qho yooj yim rau tawg lossis deform. Yog li ntawd, thaum xaiv cov ntaub ntawv, qhov ua tau ntawm kev siv tshuab yuav tsum tau txiav txim siab, thiab lwm tus neeg uas muaj peev xwm siv tau.
IV. Kev yws
Hauv kev tshawb fawb ntawm cov ntaub ntawv kev tshawb fawb, kev sib cav sib xyaw ntawm haastelloy C276 Phaj yog feem ntau concentrated nyob rau hauv cov no hauv qab no:
Qhov teeb meem ntawm dual-theem Austenite qauv thiab Δ page agemation: lub microstructure ntawm hastelloy C276 feem ntau yog obl-theem Austenite, uas tuaj yeem muab cov tshuaj tiv thaiv corrosion. Nyob rau hauv ib puag ncig kub siab, cov dej nag ntawm Δ theem yuav ua rau kev ua tau zoo ntawm cov alloy rau kev tsis txaus ntseeg. Qee qhov kev tshawb fawb ntseeg tias los ntawm kev txhim kho cov txheej txheem kev kho cua sov, cov nag lossis daus ntawm ABITATED, yog li kev txhim kho kev pabcuam lub neej ntawm cov khoom.
Cov nyhuv ntawm cov txheej txheem kho cua sov ntawm kev ua tau zoo: Kev kho cua sov yog qhov txuas tseem ceeb hauv kev npaj npaj ntawm hastelloy c276 phaj. Cov txheej txheem kho cua sov sib txawv yuav ua rau muaj kev sib txawv ntawm cov khoom siv khoom. Piv txwv li, kev kho cov tshuaj muaj peev xwm txhim kho lub zog thiab corrosion tsis kam ntawm cov khoom, thaum tsis muaj cua sov tshav kub yuav ua rau tsis muaj microstructure ntawm cov khoom, yog li cuam tshuam kev ua haujlwm.
V. Cov Ntsiab Lus
Raws li kev ua haujlwm siab uas muaj hnub nyoog muaj txiaj ntsig zoo-polloy alloy, Hastelloy C276 ntawv muaj cov kev cia siab thov kev cia siab rau tshuaj lom neeg, roj av, aerospace thiab lwm thaj teb. Nws zoo heev corrosion tsis kam thiab siab-kub lub zog ua rau nws xaiv qhov zoo tshaj plaws rau ntau qhov tseem ceeb. Nyob rau hauv cov txheej txheem xaiv thiab siv, saib xyuas yuav tsum tau them nyiaj rau cov teeb meem xws li khoom ua tau zoo, txheej txheem kho cua sov thiab kho cua sov. Los ntawm kev xaiv kev tshawb fawb thiab tsim nyog siv, qhov zoo ntawm haastelloy C276 daim ntawv yuav tau ua tiav kom tau raws li cov kev xav tau ua haujlwm hauv kev ua haujlwm ua haujlwm.
Cov kev ua tau zoo thiab daim ntawv thov kev cia siab ntawm Hastelloy C276 ntawv muaj ze rau nws cov tshuaj lom neeg muaj pes tsawg leeg, microstructure thiab kev npaj cov txheej txheem. Hauv kev siv cov tswv yim, cov ntaub ntawv uas tsim nyog yuav tsum tau xaiv ua ke nrog kev ua haujlwm, thiab lawv yuav tsum tau tsim thiab siv rau hauv nruj ua raws li cov qauv kev lag luam.
