Hana ʻia nā pōhaku lepo chrome kiʻekiʻe o ka magnesia (MgO) a me ka chromium oxide (Cr2O3) ma ke ʻano he kumu nui, periclase a me spinel e like me nā mea mineral nui o nā huahana refractory. ʻO kēlā mau pōhaku lepo kiʻekiʻe refractoriness, kiʻekiʻe wela ikaika, kū'ē i ka slag erosion kū'ē, maikaʻi thermal stability, acidic slag i kekahi adaptability. ʻO ka mea kumu nui e hana ai i nā pōhaku kiʻekiʻe chrome refractory ʻo ia ka magnesia a me ka chromite. Maʻemaʻe magnesia maka mea e like me ka mea kiʻekiʻe e like me ka hiki, nā koi o ka haku mele mele o chromite mea: Cr2O3: 30 ~ 45%, CaO1.0 ~ 1.5%.
ʻO nā pōhaku chrome kiʻekiʻe ka nui o Cr2O3, monoclinic zirconia a me ka pauka alumina. No laila, pili pono ka hana o nā chromebricks kiʻekiʻe i ka hana o kēia mau mea. Kiʻekiʻe chrome ahi brick loaʻa chromium hemitrioxide 30%, a kiʻekiʻe chrome brick ua hōʻike 'ia me ka waika a me ka alkali slags kū'ē, a ua nui hoʻohana 'ia i loko o ka noho kaʻawale, a me ka nonferrous hooheheeia umu, etc.
Hana ʻia ka pōhaku kiʻekiʻe chrome refractory mai loko mai o ka magnesite kiʻekiʻe a me ka chrome ore hoʻohui hoʻoili maikaʻi. E like me nā koi like ʻole, hoʻoponopono i ka ʻike o Cr2O3, ʻoluʻolu ka huahana thermal stability a me ka hana wela kiʻekiʻe. Hoʻohana nui ʻia nā pōhaku chrome kiʻekiʻe i ka kiln sima a me ka umu ahi nonferrous metallurgical etc.
'ikamu | RS-Cr94 | RS-Cr92 | RS-Cr90 | RS-Cr80 |
Cr2O3 % | 94 | 92 | 90 | 80 |
TiO2 % | 3.8 | 3.8 | 4 | - |
ʻIkepili Porosity % | ≤16 | ≤20 | ≤20 | ≤20 |
ʻAiʻa nui g/cm3 | ≥4.33 | ≥4.05 | ≥4.1 | ≥4.00 |
Ka ikaika hoʻopaʻa anu MPa | ≥200 | ≥100 | ≥100 | ≥100 |
0.2Mpa Refractoriness Ma lalo o ka ukana T0.6 ℃ | ≥1700 | ≥1680 | ≥1680 | ≥1670 |
Hiki ke hoʻohana ʻia nā pōhaku lepo chrome kiʻekiʻe i ka ʻoihana metallurgical, hale hana hale, a me nā kapuahi hoʻoheheʻe ʻole ferrous, etc. nā kapuahi ʻoihana ʻē aʻe.
ʻO RS refractory factory kahi mea hoʻolako brick chrome refractory kiʻekiʻe i hoʻokumu ʻia i nā makahiki 90 o iwakālua mau kenekulia. He loea ʻo RS refractory factory i ka poloka chrome kiʻekiʻe ma mua o 20 mau makahiki. ʻO nā mea maikaʻi o RS Refractory Factory penei: