Iheihe mkpuchi roba seramiiki alumina na-eguzogide iyibụ ihe mejupụtara ihe eji eme ihe nke ukwuu n'ọhịa nchekwa iyi ihe ụlọ ọrụ mmepụta ihe. Ọ na-agbatị ndụ ọrụ nke ngwa n'ọnọdụ siri ike site na ijikọta oke iguzogide iyi nke seramiiki alumina na ihe ndị na-eme ka ọ dị nro nke roba. Ihe mkpuchi a na-eji alumina dị ka ihe bụ isi, yana mgbakwunye nke ntụ seramiiki na silicon oxide, nke a na-esi na ya pụta na okpomọkụ dị elu gburugburu 1700°C. Ọdịnaya alumina ya na-adịkarị ala karịa 95%, njupụta ya na-eru 3.5-3.9 g/cm³, ike Rockwell dịkwa elu dịka HRA85-90, na-eme ka ọ sie ike nke ọma. N'ọrụ bara uru, ihe mkpuchi a na-egosipụta nhazi ọtụtụ oyi akwa: oyi akwa elu bụ seramiiki alumina, etiti bụ oyi akwa roba, ala ya bụkwa efere ígwè nkwado. A na-ejikọta oyi akwa atọ a nke ọma site na usoro vulcanization, na-emepụta usoro nchebe iyi dị n'otu.
A na-egosipụta arụmọrụ pụrụ iche nke ihe mkpuchi a mejupụtara n'ọtụtụ akụkụ: Nke mbụ, iguzogide iyi ya dị mma, yana ike nke seramiiki alumina corundum ruru karịa HRA85, na iguzogide iyi karịrị ugboro 200 nke ígwè carbon nkịtị. Nke abụọ, ngwaahịa a nwere ezigbo iguzogide mmetụta. Site na usoro seramiiki siri ike na imewe okirikiri pụrụ iche, yana oyi akwa nchekwa roba, ọ nwere ike iguzogide mmetụta nke ihe ndị buru ibu nke ọma. Nke atọ, ihe mkpuchi ahụ nwere ezigbo iguzogide okpomọkụ ma nwee ike ịrụ ọrụ nke ọma n'ime oke okpomọkụ nke 0°C ruo 250°C maka ogologo oge. Na mgbakwunye, oyi akwa roba na-eji usoro pụrụ iche nwere iguzogide acid na alkali, nke nwere ike iguzogide nchara na gburugburu acid na-adịghị ike na alkaline na-adịghị ike. Banyere ihe ndị dị n'ime ya, ike nrụgide nke ihe mkpuchi ahụ bụ ≥850 MPa, ike mgbawa KΙC ≥4.8 MPa·m1/2, ike njikọ dị n'etiti roba na seramiiki (nrụgide shear) ≥3.0 MPa, ndụ ịka nká nke roba ahụ bụ ≥ afọ 15, na-eme ka ngwaahịa ahụ bụrụ ihe a pụrụ ịtụkwasị obi ogologo oge.
A na-ejikarị ihe mkpuchi rọba seramiiki alumina nke na-anaghị eyi efe eme ihe n'ọtụtụ ebe n'ụlọ ọrụ mmepụta ihe, ọkachasị sistemụ mbufe kol nke ọkụ, ihe mkpuchi osisi ígwè, ihe mkpuchi ala, ngwa ịsa kol, sistemu ibufe simenti, na gburugburu ebe ndị ọzọ e ji ígwè rụọ. N'ọrụ bara uru, a na-ekewa ihe mkpuchi ahụ n'ụdị dị iche iche dịka ihe mejupụtara roba, nke e ji ígwè rụọ, na nke e ji rọba mee, gụnyere nkọwapụta dị iche iche dịka akụkụ anọ siri ike, nwere oghere gburugburu, na ọkpọkọ trapezoidal. Enwere ike ịkpụ ha ma gbagọọ ha dịka ụdị akụrụngwa si dị, na-emezu mkpa nrụnye maka akụrụngwa pụrụ iche. Nhazi modular ahụ na-eme ka ntinye na nnọchi dị mfe, na-ebelata oge na ọnụ ahịa mmezi akụrụngwa nke ukwuu. N'ọrụ mgbanwe teknụzụ nke Dundee Mining nke ruru tọn 4.5 nde, igwe e ji egweri ihe na-eji akwa seramiiki dị elu nwere ọdịnaya alumina dị mma nke K95 ≥95% na njupụta ≥3.8 g/cm³, na-egosi ntụkwasị obi ya na nnukwu ọrụ ụlọ ọrụ mmepụta ihe.
Oge ozi: Nọvemba-20-2025