Nyob rau hauv niaj hnub aluminium casting, xaiv txoj cai riser tube khoom yog ib qho tseem ceeb rau kev ruaj ntseg ntau lawm, casting zoo, thiab nqi efficiency. Ob qho ntawm feem ntau sivceramic riser tubeCov ntaub ntawv hauv LPDC (Low Pressure Die Casting) cov tshuab yog:
Nitride-Bonded Silicon Carbide (NSiC)
Aluminium Titanate (Al₂TiO₅)
Kev nkag siab txog qhov sib txawv ntawm ob qho kev siv ceramics tuaj yeem pab cov tuam txhab tsim kho lawv cov txheej txheem LPDC, txo qis qis, thiab txo qhov tsis xws luag.
Cov khoom tseem ceeb
1️⃣ NSI (Nitride-Bonded Silicon Carbide)
NSiC ceramic tubesyog engineered los muab cov hardness thiab hnav tsis kam ntawm SiC nrog lub zog sib txuas ntawm silicon nitride.
Cov khoom tseem ceeb:
High mechanical zog thiab tawg toughness
Zoo heev hnav thiab erosion kuj
Zoo corrosion kuj tiv thaiv molten aluminium
Haum rau siab - ntim, siab - ceev LPDC kev ua haujlwm
Daim ntawv thov:
NSiC riser raj rau nruam casting kab
Stalk tubes nyob rau hauv automotive LPDC
Rauv ceramic Cheebtsam raug molten aluminium
NSiC muab qhov sib npaug ntawm kev ua haujlwm ntev thiab tus nqi -kev ua tau zoo, ua rau nws zoo tagnrho rau cov chaw tsim khoom uas yuav tsum tau ua ntau zaus yam tsis muaj kev cuam tshuam rau lub raj lub neej.
2️⃣ Aluminium Titanate (Al₂TiO₅)
Al₂TiO₅ ceramic rajpaub txog lawv qhov tsis tshua muaj thermal expansion thiab zoo heev thermal shock kuj.
Cov khoom tseem ceeb:
Nyob ze - xoom thermal expansion, tiv thaiv kev tawg thaum lub sij hawm cua kub ceev / txias
Siab thermal shock stability
Lub teeb yuag thiab tus nqi -zoo piv rau NSiC
Mechanical zog
Daim ntawv thov:
Aluminium titanate riser raj hauv automotive casting
LPDC cov tshuab nrog qhov kub thiab txias hloov pauv
Cov xwm txheej tseem ceeb tshaj qhov thermal stability tshaj qhov hnav tsis kam
Al₂TiO₅ feem ntau nyiam nyob rau nruab nrab - ntim LPDC kab uas thermal stability yog qhov tseem ceeb tshaj qhov hnav tsis kam.
Sib piv NSiC thiab Aluminium Titanate
| Feature | NSI | Aluminium Titanate |
|---|---|---|
| Mechanical Strength | Siab | Nruab nrab |
| Hnav Resistance | Zoo heev | Nruab nrab |
| Thermal Shock Resistance | Zoo | Zoo heev |
| Corrosion Resistance | Zoo | Zoo |
| Lub neej ntev | Ntev | Nruab nrab |
| Nqi | Siab dua | Nruab nrab |
Txhais lus:
NSIua tau zoo nyob rau hauv siab - nrawm, siab - ntim cov haujlwm uas hnav thiab kev ruaj ntseg yog qhov tseem ceeb.
Al₂TiO₅excels hauv thermal shock- cov ntawv thov tseem ceeb, tshwj xeeb tshaj yog nyob rau hauv qis - mus rau - nruab nrab - ntim automotive LPDC casting.
Kev txiav txim siab-Ua raws
Thaum xaiv NSiC thiab Aluminium Titanate, xav txog cov hauv qab no:
Ntau lawm ntim
Siab -Volume LPDC: NSiC nyiam rau kev ua haujlwm ntev
Nruab nrab- ntim LPDC: Al₂TiO₅ nyiam rau tus nqi- thermal stability zoo
Melt yam ntxwv
Aggressive alloys los yog siab -ceev ntws nyiam NSiC
Kev ruaj khov yaj nrog qhov kub thiab txias ntau zaus nyiam Al₂TiO₅
Downtime Tolerance
NSiC: kev hloov pauv tsawg dua, txo qis sijhawm
Al₂TiO₅: tej zaum yuav xav tau kev hloov ntau zaus nyob rau hauv siab - ib puag ncig hnav
Kev txwv nyiaj txiag
NSiC muaj tus nqi pib dua tab sis qis dua tag nrho cov nqi ua haujlwm dhau sijhawm
Al₂TiO₅ yog pob nyiaj ntau dua - tus phooj ywg rau luv luv - lub sij hawm los yog qis - daim ntawv thov ceev
Tswv yim tswv yim rau Automotive Casting Foundries
Rau txhuas log casting lossis EV cov khoom siv, NSiC riser raj feem ntau xaiv vim:
Cov dej ntws zoo ib yam
Txo cov oxide suav nrog
Lub neej ua haujlwm ntev dua
Aluminium Titanate feem ntau yog siv rau:
Thermal shock-sensitive LPDC kab
Nruab nrab- nqi tsheb qhov chaw
Kev siv nrog kev hnav tsis zoo
Xaus
Xaiv txoj cai LPDC riser tube khoom yog qhov sib npaug ntawmmechanical zog, thermal stability, hnav tsis kam, thiab nqi efficiency.
NSiC riser tubes: zoo rau siab- ntim, siab- nrawm, siab- daim ntawv thov ua haujlwm ntev
Aluminium Titanate riser raj: zoo rau thermal shock-sensitive, nruab nrab- ntim, nqi- kev ua haujlwm siab
Los ntawm kev nkag siab txog cov khoom siv ntawm NSiC thiab Aluminium Titanate, foundries tuaj yeem xyuas kom meej:
Lub neej ua haujlwm ntev dua
ruaj khov aluminium melt flow
Tsawg tus nqi tsis raug
Txhim kho ntau lawm efficiency
Kev nqis peev hauv qhov tseebceramic riser tubecov khoom siv yog qhov kev txiav txim siab zoo uas cuam tshuam ncaj qha rau LPDC kev ua haujlwm thiab kev ua haujlwm zoo.
