Chromium Carbide Overlay Hnav Phaj Yog Dab Tsi thiab Vim Li Cas Nws Thiaj Hnav Tau Zoo Dua Li Hlau Ib Txwm Muaj?

Hauv cov lag luam hnyav xws li kev khawb av, cement, thiab kev tsim hluav taws xob, kev hnav ntawm cov khoom siv yog qhov nyuaj heev. Cov khoom siv hlau ib txwm feem ntau raug kev puas tsuaj sai, ua rau lub sijhawm tsis ua haujlwm ntau zaus thiab kho kim heev. Qhov no yog qhov uaschromium carbide overlay hnav phajua rau muaj kev hloov pauv loj heev. Tab sis dab tsi ua rau nws tiv taus kev hnav ntau dua li cov hlau ib txwm?

Nkag Siab Txog Chromium Carbide Overlay Wear Plate

Lub phaj chromium carbide overlay yog ib yam khoom tshwj xeeb uas tsim los tiv taus kev hnav hnyav heev hauv cov chaw ua haujlwm abrasive. Nws muaj cov hlau qis-carbon puag overlaid nrog ib txheej hardfaced nplua nuj nyob rau hauv chromium carbide me me, feem ntau yog Cr₇C₃. Cov carbides no tsim thaum lub sijhawm vuam thiab faib sib npaug thoob plaws qhov chaw, muab kev tiv thaiv zoo tiv thaiv kev swb hnav, kev cuam tshuam, thiab kev yaig.

Tsis zoo li cov phaj hlau txheem, uas tsuas yog vam khom rau qhov tawv ntawm cov hlau hauv paus, cov phaj no siv cov hlau sib xyaw ua ke hauv lub matrix, ua rau lub neej ua haujlwm ntev dua.

Vim Li Cas Nws Ua Tau Zoo Dua Li Cov Hlau Ib Txwm

1. Cov Qauv Carbide Zoo Tshaj Plaws

Tus yuam sij rau kev tiv thaiv kev hnav yog nyob rau hauv hom thiab kev faib tawm ntawm cov carbides. Cov hlau ib txwm muaj cov carbides raws li hlau xws li Fe₃C, uas yog mos mos thiab yooj yim hnav. Qhov sib piv, chromium carbide overlay hnav phaj tsim cov carbides siab-chromium xws li Cr₇C₃ - cov tshuaj uas qhia txog qib hardness ntawm HRC 58–65.

Cov carbides no muaj kev ruaj khov zoo heev thiab tiv taus kev sib txhuam, tshwj xeeb tshaj yog nyob rau hauv qhov qhuav lossis qhov kub siab.

Qhov Tseeb Lom Zem: Qhov piv ntawm chromium rau carbon ntau dua, qhov carbides yuav ruaj khov thiab tawv dua - qhov no yog qhov tseem ceeb tshaj plaws hauv kev ua tau zoo dua li cov hlau uas tiv taus kev hnav ib txwm muaj.

2. Kev Txhim Kho Microstructure

Hauv cov phaj hnav zoo, cov txheej txheem tawv tawv muaj cov matrix martensitic sib xyaw nrog cov carbides sib faib ua ntau. Cov qauv sib xyaw no tso cai rau lub phaj kom tiv taus ob qho kev sib txhuam thiab kev cuam tshuam nruab nrab, ua rau nws siv tau ntau yam.

Txawm li cas los xij, yog tias cov carbides tsim tsis sib npaug - zoo li hauv cov qauv zoo li lub vas lossis raws cov ciam teb ntawm cov noob - kev tiv thaiv kev hnav tuaj yeem txo qis. Yog vim li cas kev ua thiab kev tswj hwm yog qhov tseem ceeb.

3. Kev Txhawb Nqa Ruaj Khoov rau Kev Vuam & Kev Tsim Khoom

Tsis zoo li cov khoom siv ceramics lossis cov hlau cuab yeej,cov phaj sib xyaw ua kemuaj lub hauv paus hlau tsis hnyav uas ua rau yooj yim vuam, khoov, thiab txiav - suav nrog plasma thiab laser txiav. Qhov no ua rau cov chaw tsim khoom tsim cov duab nyuaj xws li cov ntaub nkhaus, cov kab hnav, thiab cov khoom siv rau kev teeb tsa raws li kev cai.

Cov Kev Siv Hauv Lub Ntiaj Teb Tiag: Cov Phaj No Siv Qhov Twg?

Cov phaj hnav chromium carbide clad siv dav hauv cov chaw uas muaj kev hnav siab txhua hnub:

Kev khawb av: Hloov cov chutes, hoppers,cov phaj npo

Cov nroj tsuag cement: Cov khoom sib cais, cov khoom noj clinker, cov ntsia hlau conveyors

Cov chaw tsim hluav taws xob thermal: Cov kab sib tsoo thee, cov tshuab tuav tshauv

Cov chaw ua hlau: Cov chaw ua sinter, cov thawv khoom siv,cov qhov tso tawm

Hauv txhua qhov xwm txheej, kev hloov cov khoom txheem nrog cov phaj chromium hnav siab ua rau lub neej ntev dua thiab txo cov kev saib xyuas tsis tau teem sijhawm.

Xaiv Cov Phaj Hnav Zoo

Thaum xaiv lub phaj chromium carbide overlay, xav txog:

Qhov tuab thiab cov khoom sib xyaw ntawm cov ntaub thaiv (piv txwv li, 4 + 4 hli, 6 + 6 hli, 8 + 6 hli)

Feem pua ​​ntawm cov carbide (30%+ yog qhov zoo dua)

Cov txheej txheem vuam (submerged arc vs. qhib arc)

Kev xav tau txiav (plasma, laser)

Tsis tas li ntawd, ib txwm xyuas seb cov khoom puas ua tau raws li cov qauv zoo xws li qhov nyuaj sib xws, cov qauv metallographic, thiab kev cuam tshuam.