PlasmaTsim Vuam, raws li ib qho ntawm cov thev naus laus zis ntxiv dag zog rau saum npoo, muaj qhov zoo ntawm surfacing ntau cov ntaub ntawv alloy hmoov, ntom ntom txheej txheej, tsis muaj dilution, kev ua haujlwm siab ntau lawm, tsis siv cov khoom siv alloy, thiab tus nqi qis.Nws nto yog corrosion-resistant, hnav-resistant, kev txhim kho ntawm kub kub kuj tau attracted ntau thiab ntau xim.
Tam sim no, hlau-raws li, npib tsib xee-raws li thiab cobalt-based alloy hmoov yog tsuas yog siv rau plasma.txhim kho welding.Hlau-raws li alloy hmoov muaj zoo hnav tsis kam thiab tsis tshua muaj nqi, tab sis tsis zoo tshav kub tsis kam thiab corrosion kuj.Nickel-based thiab cobalt-based alloy hmoov hmoov muaj kev tiv thaiv corrosion zoo thiab kev ua haujlwm kub, tab sis tus nqi kuj yog siab heev.Siv plasma arc los tso cov hlau-raws li nws tus kheej-fluxing alloy hmoov, npib tsib xee-raws li nws tus kheej-fluxing alloy hmoov thiab npib tsib xee-raws li alloy ntxiv rau wc composite hmoov nyob rau saum npoo ntawm 16mn steel, los ntawm kev coj mus kuaj nyob rau hauv txawv corrosive media, cov teebmeem ntawm peb. Cov txheej txheej saum npoo tau kawm Microstructure, theem muaj pes tsawg leeg, hardness thiab hnav tsis kam.
Kev cuam tshuam ntawm cov xov xwm sib txawv corrosive ntawm kev hnav tsis kam ntawm tib lub alloy surfacing txheej kuj txawv.Kev hnav tsis kam ntawm cov txheej txheej saum npoo hauv nruab nrab aqueous nruab nrab yog zoo dua li qhov nruab nrab acidic thiab alkaline.Qhov no feem ntau yog vim ib qho hnav ua haujlwm hauv dej.Nyob rau hauv dilute HCl tov thiab dilute NaOH tov, ib tug micro-roj teeb yog generated ntawm lub compound thiab cov khoom tov, thiab muaj kev sib cuam tshuam ntawm hnav thiab electrochemical corrosion, kom lub surfacing txheej nyob rau hauv dilute HCl tov.Thiab qhov hnav tsis kam nyob rau hauv dilute NaOH tov nruab nrab yog txo vim qhov cuam tshuam ntawm corrosion kuj.
Sib piv cov hnav tsis kam ntawm cov txheej saum npoo hauv dilute HCl thiab dilute NaOH nruab nrab, nws pom tias qhov hnav tsis kam hauv dilute HCl nruab nrab yog qhov tsis zoo, vim tias cov txheej txheej saum npoo tuaj yeem tsim cov zaj duab xis passivation hauv dilute HCl thiab dilute NaOH nruab nrab, Txawm li cas los xij, passivation zaj duab xis nyob rau hauv dilute HCl yog ib qho yooj yim mus deteriorate, thiab passivation zaj duab xis nyob rau hauv dilute NaOH nruab nrab yog tsis yooj yim puas, yog li cov hnav tsis kam ntawm surfacing txheej nyob rau hauv dilute NaOH nruab nrab yog zoo dua li nyob rau hauv dilute HCl acid..
Lub hardness ntawm Ni60 surfacing txheej zoo ib yam li Fe55.Kev hnav tsis kam ntawm Ni60 txheej txheej hauv dilute hydrochloric acid tov thiab dilute NaOH kua yog zoo dua li ntawm Fe55, tab sis qhov sib txawv yog qhov tseeb hauv cov dej nruab nrab.Rau cov txheej txheej saum npoo ntawm tib lub alloy, hnav tsis kam nyob rau hauv ib puag ncig corrosive nruab nrab ntawm dilute HCl tov thiab dilute NaOH kua yog qis dua li hauv nruab nrab dej, thiab qhov txo qis yog pom tseeb dua hauv acidic av nruab nrab.
Post lub sij hawm: Feb-14-2023