Tshawb nrhiav Cov Lus Qhia Ntawm Silicon Carbide Ua Npuas Ncauj Ceramic Lim

I. Khawv koob ntawm Porous Structures

Silicon carbide ua npuas ncauj ceramic lim ua raws li "ntse sieves" rau molten hlau; lawv peb -seem, interconnected pore network zoo intercepts feeb impurities yam tsis muaj impeding khiav ceev. Cov qauv tshwj xeeb no yog ua tau los ntawm qhov tshwj xeeb siab - qhov kub thiab txias stability ntawm silicon carbide, uas khaws nws daim ntawv txawm nyob rau hauv ib puag ncig mus txog 1600℃- ua rau nws tshwj xeeb tshaj yog zoo- haum rau casting ntawm alloys xws li txhuas thiab tooj liab. Tus qauv ntxeem tau induces turbulence nyob rau hauv lub molten hlau ntws, yog li boosting lub efficiency ntawm impurity kev sib tsoo thiab adsorption ntau tshaj 40%.

II. Txoj Kev Kho Kom Zoo Nkauj hauv Casting Scenarios

Yuav kom ua tau raws li qhov yuav tsum tau ua ntau yam, cov lim dej silicon carbide muaj nyob rau hauv ntau yam kev teeb tsa:

● Lub ntiajteb txawj nqus Casting: Siv nruab nrab- cov lim dej ntom ntom (10–20 PPI - pores ib nti) txhawm rau txhawm rau sib npaug ntawm qhov pom qhov tseeb thiab qhov ntws ntws.

● Tsawg-Pressure Casting: Ua haujlwm siab -throughput filters (5–10 PPI) kom haum raws li qhov xav tau ntawm kev ntim pwm sai.

● Precision Casting: nta siab - cov lim dej ntom ntom (tshaj 30 PPI) muaj peev xwm ntes cov kev suav nrog me me li 5 microns.

III. Peb Dimensions ntawm Performance Optimization

● Pore Gradient: Cov pores loj dua nyob rau hauv txheej sab sauv dissipate qhov cuam tshuam ntawm cov hlau nkag, thaum cov pores zoo dua nyob rau hauv qis txheej txhim khu kev pom tseeb.

● Kev Hloov Kho Nto: Cov txheej txheem tshwj xeeb yog siv los txo qhov nro ntawm cov hlau molten, yog li txo qhov kev cuam tshuam ntawm huab cua npuas.

● Thermal Shock Resistance: Ib qho tshwj xeeb ntawm qhov pore faib tsim ua rau cov khoom tuaj yeem tiv taus thermal cycling sai - tshwj xeeb, tam sim ntawd cua sov thiab cua txias txog li 300℃ib ob.