1. Hoʻolālā Mea a me ke ʻano o ke ʻano
1.1 Alumina Content a me Crystal Phase Evolution
( ʻO nā pōhaku lepo alumina)
He mānoanoa nā poloka lining alumina, ʻO nā seramika refractory i hana nui ʻia me ka alumini oxide (Al elua O EONO), me ka maʻiʻo e ʻokoʻa maʻamau mai 50% e oi aku 99%, hoʻopili pololei i ko lākou pono i nā noi wela kiʻekiʻe.
ʻO ka ikaika mechanical, pale ʻino, a me ka refractoriness o kēia mau pōhaku lepo e hoʻonui ʻia me ka alumina kiʻekiʻe ma muli o ka holomua o kahi microstructure lōʻihi i hoʻomalu ʻia e ka α-alumina paʻa thermodynamically. (daimana) kahua.
I ka wā hana, nā huahana mua e like me ka calcined bauxite, alumina hoʻohui, a i ʻole alumina hydrate hana ma waena o ka pana wela kiʻekiʻe (1400 ° C– 1700 ° C), hoʻololi ke kahua hoʻolaha mai nā ʻano alumina transitional (c, d) i α-Al Elua O Ekolu, e hōʻike ana i ka paʻa paʻa (9 ma ka lae Mohs) a me ka mea hoohehee (2054 ° C).
ʻO ka hopena polycrystalline e loaʻa ana nā hua corundum i hoʻopili ʻia i loko o ka siliceous a i ʻole aluminosilicate matrix aniani., ʻO ka make-up a me ka nui o ia mau mea i hoʻoponopono maikaʻi ʻia e kaulike i ke kūpaʻa haʻalulu wela a me ka paʻakikī kemika..
ʻO nā mea liʻiliʻi e like me ke silica (SiO ₂), titania (TiO ₂), aiʻole zirconia (ZrO ₂) hiki ke hoʻolauna ʻia e hoʻololi i nā hana sintering, hoʻonui i ka densification, a i ʻole e hoʻoikaika i ka pale ʻana i kekahi mau slags a me nā fluxes.
1.2 Microstructure, Porosity, a me ka Pono Mechanical
ʻO ka maikaʻi o nā poloka lining alumina e hilinaʻi nui i kā lākou microstructure, ʻoi aku ka hāʻawi ʻana i ka nui o ka palaoa, pore morphology, a me nā hiʻohiʻona pae hoʻopaʻa.
Hōʻike maikaʻi nā pōhaku lepo maikaʻi, puʻunaue mau ʻia nā pores (koho ʻia ka porosity pani) a liʻiliʻi loa ka porosity hāmama (
Alumina Technology Co., Ltd e nānā i ka noiʻi a me ka hoʻomohala ʻana, ka hana ʻana a me ke kūʻai ʻana i ka pauka alumini oxide, nā huahana alumini oxide, alumini oxide crucible, etc., lawelawe i ka uila, seramika, kemika a me nā ʻoihana ʻē aʻe. Mai kona hoʻokumu ʻia ʻana ma 2005, ua kūpaʻa ka hui i ka hāʻawi ʻana i nā mea kūʻai aku i nā huahana a me nā lawelawe maikaʻi loa. Inā ʻoe e ʻimi nei i ke ʻano kiʻekiʻe alumina al2o3, e ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.
Nā huaʻōlelo: ʻO nā pōhaku lepo alumina, alumina, alumina oxide
ʻO nā ʻatikala a me nā kiʻi a pau mai ka Pūnaewele. Inā loaʻa kekahi pilikia kope, e ʻoluʻolu e kelepona mai iā mākou i ka manawa e holoi ai.
E nīnau iā mākou