Curved refractory brick loaʻa iā Al2O3 ma kahi o 30% ~ 45%, a ʻoi aku ka haʻahaʻa o ka silica ma mua o 78%. ʻO nā pōhaku makamae curved no nā mea refractory acid nāwaliwali. ʻAʻole kūʻē ka poloka refractory curved i ka slag acid a me ka hoʻopau ʻana o nā kinoea waikawa, akā ʻilihune ka hiki ke kū i ka alkali. ʻO nā poloka refractory curved nā ʻano o ka hana wela maikaʻi a me ke kūpaʻa haʻalulu maikaʻi.
Paʻa ahi ʻāwili | |||
Papa kuhikuhi | 40 - 45% Alumina Fireclay Brick | 30 - 35% Alumina Fireclay Brick | |
'ikamu | Unite | 1600°C | 1500°C |
ʻAiʻi Nui | g/cm³ | 2.2 | 2.1 |
ʻIke ʻia ka Porosity | % | 22 | 24 |
Modulus o ka nahaha | kg/cm² | 90 | 80 |
Ka Ikaika Kui anu | kg/cm² | 300 | 250 |
Hoʻonui Linear 1350°C | % | 0.2 | 0.2 |
Refractoriness Ma lalo o ka ukana | °C | 1450 | 1300 |
Hoʻohana nui ʻia ka pahu ahi curved no ka uhi ʻana o nā wahi wela a i ʻole ke kākoʻo ʻana i nā papa wela-insulating o nā mea refractory ʻē aʻe. ka refractory linings a me ka wela-insulating mea o nā ʻoihana, e like me ka ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-heater shullte kilns, etc.