Hauv kaum xyoo dhau los, kev lag luam aluminium casting tau dhau los ua cov khoom siv tseem ceeb. Ib qho ntawm cov kev hloov pauv pom zoo tshaj plaws hauv cov tshuab tsis tshua muaj siab tuag casting (LPDC) yog qhov hloov ntawm cov hlau cam khwb cia hlau riser raj mus rau qib siab.silicon nitride riser raj.
Qhov kev hloov pauv no tsis yog ib qho qauv uas tau tsav los ntawm zam - nws yog tsav los ntawm kev ua tau zoo, kev tswj hwm tus nqi, thiab kev ua haujlwm zoo.
Kev txwv ntawm Cam khwb cia hlau Riser Tubes hauv LPDC
Cam khwb cia hlau riser raj tau ib zaug siv dav hauv txhuas casting vim lawv cov nqi pib qis thiab yooj yim machinability. Txawm li cas los xij, raws li cov txheej txheem txhuas casting ua ntau meej - tshwj xeeb tshaj yog nyob rau hauv automotive log casting thiab EV structural Cheebtsam - lawv qhov tsis zoo yog qhov pom tseeb:
Muaj zog corrosion nyob rau hauv molten aluminium
Lub neej ua haujlwm luv
Kev tu ntau zaus
Oxide contamination txaus ntshai
Nce downtime
Nyob rau hauv LPDC systems, lub riser raj ua lub luag haujlwm tseem ceeb hauv kev hloov molten aluminium los ntawm lub cub tawg mus rau pwm. Any instability in this component directly affects casting quality, internal density, and surface finish.
Raws li cov qauv casting nce, cov raj hlau ib txwm tsis txaus.
Yog vim li cas Silicon Nitride Riser Tubes tau noj
A silicon nitride ceramic riser rajmuaj qhov sib txawv kiag li profile piv rau cam khwb cia hlau.
1️⃣ Superior Corrosion Resistance
Cov khoom siv silicone nitride muaj kev tiv thaiv zoo rau molten aluminium nres. Tsis zoo li cam khwb cia hlau, nws tsis yaj los yog paug cov yaj. Qhov no txo qis oxide suav nrog thiab txhim kho kev ua kom huv si.
2️⃣ Lub neej ua haujlwm ntev
Lub neej kev pab cuam ntawm silicon nitride riser raj tuaj yeem ua tau ob peb zaug ntev dua li cov cam khwb cia hlau. Qhov no txo qis kev hloov zaus thiab kev tsim khoom poob qis - qhov tseem ceeb hauv kev ua haujlwm LPDC tas li.
3️⃣ Thermal Shock Stability
Nyob rau hauv qis siab tuag casting, kub hloov pauv yog yam tsis muaj kev zam. Silicon nitride ceramic muaj qhov thermal expansion thiab muaj zog thermal shock tsis kam, tswj kev ua haujlwm ruaj khov txawm tias nyob rau hauv cov cua sov thiab cua txias.
4️⃣ Txhim kho Casting Zoo
Vim hais tias silicon nitride raj muaj qhov ruaj khov thiab tiv taus yaig, yaj ntws tseem du thiab ruaj khov. Qhov no ua rau:
Kev ua haujlwm zoo dua filling
Txo turbulence
Tsawg porosity tsis xws luag
Tus nqi siab dua
Rau aluminium log casting thiab cov khoom siv hauv tsheb, qhov kev ua tau zoo sib txawv yog qhov txiav txim siab.
Kev Pom Zoo Kev Lag Luam: Tus nqi pib vs Tus nqi tag nrho
Thaum tus nqi pib ntawm asilicon nitride riser rajyog siab tshaj cam khwb cia hlau, foundries nce soj ntsuam cov ntaub ntawv raws li tag nrho cov nqi khiav hauj lwm.
Thaum xav txog:
Txo downtime
Tsawg dua hloov
Tus nqi qis dua
Txhim kho casting tawm los
Silicon nitride dhau los ua cov kev daws teeb meem ntau dua thaum lub sijhawm.
Qhov no muaj tseeb tshwj xeeb tshaj yog nyob rau hauv siab - ntim LPDC cov kab ntau lawm uas cov khoom siv ruaj khov cuam tshuam ncaj qha rau cov txiaj ntsig.
Kev Txhim Kho Kev Lag Luam: Los ntawm Hlau mus rau Technical Ceramics
Lub ntiaj teb no aluminium casting kev lag luam yog txav mus rau:
Lub teeb automotive Cheebtsam
EV structural casting
Siab dua qhov precision
Cleaner molten hlau tshuab
Raws li cov kev cai no, cov raj xa dej ceramic - tshwj xeeb tshaj yog silicon nitride ceramic - tau dhau los ua cov kev daws teeb meem.
Foundries uas upgrade rauSi₃N₄ riser tubesqhia txog kev txhim kho cov txheej txheem kev ruaj ntseg thiab txo cov sij hawm ntev - cov nqi tu.
Xaus
Kev hloov cov cam khwb cia hlau nrog silicon nitride riser raj tsis yog kev hloov khoom siv xwb - nws sawv cev rau kev hloov kho tshiab ntawm LPDC cov khoom siv.
Raws li cov qauv kev lag luam zoo txuas ntxiv nce ntxiv, cov txheej txheem txheej txheem ceramics tau dhau los ua cov khoom tseem ceeb hauv aluminium casting systems.
Rau cov foundries nrhiav kev pab lub neej ntev dua, ruaj khov hloov pauv, thiab ntau dua casting sib xws, silicon nitride riser raj tsis xaiv tau lawm - lawv yog cov qauv kev lag luam tshiab.
