Nūhou

?Piliki magnesia-chromehe mea paʻa kumu ia me ka magnesium oxide (MgO) a me ka chromium trioxide (Cr2O3) ma ke ʻano he mau mea nui. Loaʻa iā ia nā waiwai maikaʻi loa e like me ke kūpaʻa kiʻekiʻe, ke kū'ē ʻana i ka haʻalulu wela, ke kū'ē ʻana i ka slag a me ke kū'ē ʻana i ka erosion. ʻO kāna mau mea mineral nui he periclase a me spinel. ʻO kēia mau ʻano e hana maikaʻi ai nā brick magnesia-chrome i nā wahi mahana kiʻekiʻe a kūpono no nā lako ʻoihana wela kiʻekiʻe like ʻole.

Nā mea hoʻohui a me ke kaʻina hana?

ʻO nā mea maka nui o nā piliki magnesia-chrome he magnesia sintered a me chromite. Loaʻa i ka magnesia kahi koi maʻemaʻe kiʻekiʻe, ʻoiai ʻo ka hoʻohuihui kemika o ka chromite he Cr2O3 ka nui ma waena o 30% a me 45%, a ʻaʻole ʻoi aku ka nui o CaO ma mua o 1.0% a i 1.5%. Hoʻokomo pū ka hana hana i ke ʻano hoʻopili pololei a me ke ʻano ʻaʻole e puhi. Hoʻohana nā piliki magnesia-chrome hoʻopili pololei i nā mea maka maʻemaʻe kiʻekiʻe a puhi ʻia i ka mahana kiʻekiʻe e hana i kahi hoʻopili pololei pae wela kiʻekiʻe o ka periclase a me ka spinel, kahi e hoʻomaikaʻi nui ai i ka ikaika wela kiʻekiʻe a me ke kūpaʻa slag.

Nā ʻano hana
?ʻO ke kūpaʻa kiʻekiʻe:ʻOi aku ka maʻamau o ke kūpaʻa ʻole ma mua o 2000°C, a hiki iā ia ke mālama i ke kūpaʻa kūkulu maikaʻi ma ke ana wela kiʻekiʻe.
Ke kūpale ʻana i ka haʻalulu wela:Ma muli o ke koina hoʻonui wela haʻahaʻa, hiki iā ia ke hoʻololi i nā loli koʻikoʻi o ka mahana.
Ke kū'ē ʻana i ka slag:He ikaika kona kūpaʻa i ka slag alkaline a me kekahi slag acidic, a kūpono loa ia no nā wahi i hōʻike ʻia i ka slag wela kiʻekiʻe.
Ke kūpaʻa ʻana i ka palaho:He ikaika kona hoʻomanawanui i ka ʻino ʻana o ka waikawa-kumu a me ka ʻino kinoea.
?Paʻa kemika:ʻO ka hopena paʻa i hoʻokumu ʻia e ka magnesium oxide a me ka chromium oxide i loko o nā piliki magnesia-chrome he kiʻekiʻe ke kūpaʻa kemika.

Nā kahua noi
Hoʻohana nui ʻia nā piliki Magnesium-chrome ma nā ʻoihana o ka ʻoihana metallurgical, ka ʻoihana sima a me ka ʻoihana aniani:

ʻOihana hana hao:hoʻohana ʻia no ka uhi ʻana o nā lako wela kiʻekiʻe e like me nā mea hoʻololi, nā umu arc uila, nā umu kapuahi hāmama, nā ladles a me nā umu pahū i ka ʻoihana kila, kūpono loa no ke kaiapuni o ka lawelawe ʻana i ka slag alkaline wela kiʻekiʻe.

?ʻOihana sima:hoʻohana ʻia no ke kahua ahi a me ka ʻāpana hoʻololi o nā umu wili sima e pale aku i ka ʻino ʻana o ke kiʻekiʻe o ka mahana a me ka lewa alkaline.

ʻOihana aniani:hoʻohana ʻia no nā mea hoʻoulu hou a me nā ʻāpana o luna i loko o nā umu hoʻoheheʻe aniani, a hiki ke kū i ka ʻino ʻana o ka lewa wela kiʻekiʻe a me ka wai aniani alkaline.