Hauv kev siv cov mining, ntxhia ua, thiab cov cement ntau lawm, cov khoom siv tsis ua haujlwm vim kev hnav tsis zoo yog ib qho ntawm cov neeg txhawb nqa loj tshaj plaws rau kev poob qis thiab cov nqi tu. Cheebtsam xws li slurry twj impellers thiab zeb liners yog tas li raug rau siab tshaj slurries uas muaj ntse hais, pob zeb nyuaj, thiab corrosive kua. Rau cov xwm txheej no, cov hlau zoo tib yam lossis grey hlau tsuas yog tsis tuaj yeem muaj sia nyob. Qhov ntawd yog qhov hnav resistant siab chrome cam khwb cia hlau ua cov khoom ntawm kev xaiv.
High chrome cam khwb cia hlau yog cov hlau dawb uas muaj nyob nruab nrab ntawm 11 thiab 30 feem pua chromium. Cov ntsiab lus siab chromium txhawb kev tsim cov tawv chromium carbides uas nyuaj dua li cov silica lossis quartz hais feem ntau pom hauv cov slurries. Cov carbides tau tawg mus thoob plaws hauv martensitic matrix, tsim kom muaj cov qauv sib xyaw uas tiv thaiv ob qho tib si khawb thiab kev ntxhov siab siab. Nyob ntawm qhov tshwj xeeb alloy tsim thiab kev kho cua sov, siab chrome cam khwb cia hlau tuaj yeem ua tiav qib hardness ntau tshaj 60 HRC thaum tseem tswj kom muaj zog txaus los tiv thaiv kev cuam tshuam me ntsis.
Slurry twj tso kua mis impellers yog lub plawv ntawm txhua qhov hydraulic thauj system. Lawv tig ntawm qhov nrawm thaum thawb cov khoom sib tov ntawm dej, xuab zeb, pob zeb, thiab tshuaj lom neeg. Yog hais tias lub impeller erodes unevenly, nws poob hydraulic efficiency thiab yuav tsum tau hloov. High chrome cam khwb cia hlau impellers muab zoo heev yaig kuj, tswj lawv cov thawj profile ntev tshaj li roj hmab lined los yog tsawg alloy steel lwm. Cov khoom siv kuj tiv taus galvanic corrosion thaum tuav cov kua qaub los yog saline slurries, txuas ntxiv kev pab cuam lub neej.
Mill liners tiv thaiv lub plhaub hlau ntawm pob zeb thiab SAG mills thaum hloov lub zog rau kev sib tsoo. Cov kab no muaj kev cuam tshuam los ntawm cov khoom siv hauv av thiab cuam tshuam los ntawm cov pob hlau lossis pob zeb. High chrome cam khwb cia hlau liners muab qhov zoo sib npaug ntawm hardness thiab toughness thaum kho cua sov kom zoo. Lawv lub neej hnav feem ntau tshaj li ntawm manganese steel liner los ntawm ib qho ntawm ob los yog peb, tshwj xeeb tshaj yog nyob rau hauv qhuav sib tsoo daim ntaub ntawv. Tsis tas li ntawd, siab chrome liners tuaj yeem tsim nrog lifter tuav thiab yoj profiles uas txhim kho kev sib tsoo efficiency thaum hnav sib npaug.
Thaum muab cov khoom siv high chrome cam khwb cia hlau, cov neeg yuav khoom yuav tsum qhia meej txog qhov yuav tsum tau muaj microstructure thiab hardness ntau yam, nrog rau kev ntsuam xyuas rau qhov loj dua. Kev kho cua sov yuav tsum tau ua tib zoo tswj kom tsis txhob tawg lossis khaws cia austenite. Nrog zoo metallurgy, siab chrome cam khwb cia hlau muab tshwj xeeb hnav tsis kam uas txo cov txij nkawm thiab txo qis tag nrho cov nqi khiav hauj lwm rau slurry twj thiab sib tsoo mills.
