Cawv ntawm silicon carbide hmoov (SiC) ntawm cov khoom ntawm castables

⑴ Txij li SiC nws tus kheej yog dej-repellent, nws tsis yooj yim rau wetted, thiab nws tsis yog yooj yim los tsim ib tug dej zaj duab xis txheej, thiab cov dej haus ntawm cov castable nce. Yog li, qhov siab dua SiC cov ntsiab lus, kev ua haujlwm tsis zoo thiab kev ua haujlwm ntawm cov castable, thiab lub zog flexural txias yuav txo qis.

⑵ Vim tias qhov ntom ntom ntawm SiC (2.6 ~ 2.8g / cm3) ntau dua li qhov ntom ntawm ceramics (2.2 ~ 2.4g / cm3), ntau SiC cov ntsiab lus, qhov ntim ntau dua ntawm cov khoom siv. Thaum qhov kub thiab txias thiab SiC cov ntsiab lus siab dua, qhov ntim ceev yuav nce mus rau ib qho twg. Cov ntsiab lus SiC qhia qhov tsis zoo rau qhov cuam tshuam ntawm cov khoom siv hloov pauv.

⑶ SiC cov ntsiab lus muaj txiaj ntsig zoo rau lub zog ntawm cov castable, tshwj xeeb tshaj yog thaum kub siab (1100 ° C). Tshwj xeeb tshaj yog thaum SiC particle loj yog 150 mesh, nws tsis tuaj yeem oxidized tag nrho, thiab qee qhov khoob tau tsim nyob ib ncig ntawm SiC hais, uas txhim kho cov thermal shock thiab lub zog ntawm cov castable. Lub unoxidized SiC kuj ua haujlwm raws li cov khoom siv ntxiv.

⑷ Cov ntsiab lus SiC ntau dua, cov khoom siv los tiv thaiv tawv nqaij zoo dua.

⑸ Cov ntsiab lus SiC ntau dua, qhov zoo dua cov alkali tsis kam.