Iityhubhu ze-alumina zeseramikhi ezimelana nokuguguleka zinqunyulwa kuthotho lwamanyathelo enkqubo.
Okokuqala, izinto ezisetyenziswa kwiipayipi ze-alumina ze-ceramic ezingagugiyo ikakhulu yi-Al2O3 yemizi-mveliso, elungiselelwe nge-bauxite (Al2O3▪3H2O) kunye ne-diaspore. Kwi-Al2O3 eneemfuno eziphezulu zobumsulwa, idla ngokulungiswa ngeendlela zeekhemikhali. Ngexesha lenkqubo yokulungiselela, ityhubhu ye-alumina ceramic yongezwa ngezinto ze-ceramic ezidityanisiweyo ezifana ne-zirconium oxide, i-silicon oxide, i-silicon nitride kunye nezinye iipowders ngexesha le-calcination ukwandisa ubulukhuni bayo kunye namandla ayo.
Kwinqanaba lokusika, ukunqunyulwa kweepayipi ze-alumina ceramic kuxhomekeke kakhulu kwizixhobo zokucubungula ezichanekileyo, ezifana noomatshini bokusika iingcingo ezikhawulezayo okanye oomatshini bokusika iingcingo ezicothayo. Oomatshini bokusika iingcingo ezikhawulezayo bafanelekile ekucubunguleni iipayipi ze-alumina ceramic ezinobubanzi obuncinci kunye neemfuno eziphezulu zokuguda komphezulu; ngelixa oomatshini bokusika iingcingo ezicothayo befanelekile ekucubunguleni iipayipi ze-alumina ceramic ezinobubanzi obukhulu kunye neemfuno zokuguda komphezulu eziphantsi. Ngexesha lenkqubo yokusika, kufuneka kunikwe ingqwalasela ekhethekileyo kwi-engile yokusika kunye nesantya sokusika ukuqinisekisa ukuguda kunye nokuchaneka komphezulu wokusika.
Ukongeza, ukunqunyulwa kwemibhobho ye-alumina ceramic kunokubandakanya iinkqubo zokucubungula ezifana nokusila nokujika. Inkqubo yokusila isebenzisa ikakhulu umatshini wokusila. Isixhobo sokusila singaba livili lokusila okanye ivili lokusila le-CBN. Kubalulekile ukunaka ubunzulu bokusila kunye nexesha lokusila ukuqinisekisa ukuguda nokuchaneka komphezulu wombhobho we-alumina ceramic. Inkqubo yokusila isebenzisa ikakhulu iilathe, kwaye izixhobo zokusila zingaba zizixhobo zokujika zentsimbi ye-tungsten okanye izixhobo zokujika ze-carbide.
Ngokubanzi, ukusika nokwenziwa kweetyhubhu ze-alumina zeseramikhi ezingagugiyo yinkqubo enzima efuna izixhobo zokucubungula ezichanekileyo kunye nolawulo lwenkqubo entle ukuqinisekisa umgangatho kunye nokusebenza kwemveliso yokugqibela.
Ixesha leposi: Meyi-21-2024