Vim li cas zirconia zawv zawg daim hlau xaiv rau cov hlau ladle nruam casting txheej txheem?
Apr 15, 2026
Thaum lub sij hawm nruam casting txheej txheem hauv steel smelting, "swb phaj" nyob rau hauv qab ntawm lub steel ladle yog ib qho tseem ceeb tswj tivthaiv. Nws ua hauj lwm zoo li lub faucet, tswj cov ntws ntawm molten hlau los ntawm cov hlau ladle rau hauv nruab nrab ladle. Thiab cov zirconium oxide swb phaj yog tam sim no cov khoom nyiam rau siab - kawg nruam nruam casting. Lub ntsiab yog vim li cas rau qhov no yog raws li nram no:
Qhov kub ntawm cov hlau molten tuaj yeem ncav cuag 1500 degree. Nyob rau hauv cov xwm txheej zoo li no, cov ntaub ntawv zoo tib yam yuav sai sai ua mos, deform lossis txawm yaj. Lub melting point ntawm zirconia tshaj 2700 degree. Txawm nyob rau ntawm qhov kub ntawm cov hlau molten, nws tseem nyuaj thiab ruaj khov, tsis poob nws firmness.
Thaum siv, lub skateboard tau rov ua dua qhov kub thiab txias hloov - nws yog ntxuav los ntawm cov hlau kub kub thaum qhib thiab txias tom qab kaw. Ordinary ceramics yuav tawg vim thermal expansion thiab contraction, tab sis zirconia muaj lub peev xwm tshwj xeeb: nws cov qauv siv lead ua tuaj yeem cuam tshuam qhov kev ntxhov siab los ntawm kev hloov pauv kub, yog li muaj zog tiv thaiv thermal shock thiab tsis tshua muaj kev tawg.
Thaum cov dej steel ntws sai heev los ntawm txoj kab swb, nws ua rau khaus scouring thiab tshuaj corrosion. Zirconium oxide muaj zog hardness thiab ruaj khov tshuaj, thiab tsis hnov mob nrog cov khoom hauv cov dej steel (xws li hlau, oxygen, calcium, thiab lwm yam). Yog li ntawd, nws hnav maj mam, muaj lub neej ua haujlwm ntev, thiab tuaj yeem siv ntau zaus, txo qhov zaus ntawm kev hloov pauv.
Lub skateboard yuav tsum tiv taus qhov zoo li qub siab ntawm kaum tawm tons ntawm molten hlau nyob rau hauv steel ladle, nrog rau cov neeg kho tshuab cuam tshuam thaum qhib thiab kaw. Txawm tias nyob rau hauv qhov kub thiab txias, zirconia tuaj yeem tswj tau lub zog flexural siab heev thiab yuav tsis tawg lossis deform nyob rau hauv siab, ua kom muaj kev nyab xeeb thiab kev ntseeg tau.
Cov khoom siv skateboard feem ntau tuaj yeem tso cov khoom me me los yog tsim cov impurities ntawm qhov kub thiab txias, uas tuaj yeem sib xyaw rau hauv cov hlau molten thiab cuam tshuam rau purity ntawm cov hlau. Zirconia muaj zog oxidation tsis kam thiab tsis yooj yim rau kev puas tsuaj, uas tuaj yeem txo cov impurities txawv teb chaws thiab tseem ceeb heev rau kev tsim cov hlau zoo - zoo thiab huv si.
Kev xaiv ntawmzirconia zawv zawg daim hlauFeem ntau yog nyob rau hauv lawv cov khoom zoo xws li kub tsis kam, tiv thaiv thermal shock, tsis kam yaig, siab zog, thiab tsis muaj kuab paug. Txawm hais tias nws cov nqi siab dua li cov ntawv zawv zawg zoo tib yam, nws muaj lub neej ntev dua, tsawg dua lub sijhawm hloov, txo kev pheej hmoo ntawm kev sib tsoo, thiab tuaj yeem txhim kho cov hlau zoo. Cov txiaj ntsig tag nrho yog qhov tseem ceeb. Yog li ntawd, nyob rau hauv niaj hnub nruam casting ntau lawm, tshwj xeeb tshaj yog rau cov qib steel nrog siab yuav tsum tau rau steel dej purity (xws li automotive daim hlau, hluav taws xob hlau, thiab lwm yam), zirconia zawv zawg daim hlau yog yuav luag ib tug indispensable xaiv.
Kev xa khoom sai rau cov phiaj xwm ceev
