Kushandiswa kweAluminium Carbon Bricks MuMolten Iron Pretreatment process

Kugadzirisa 5% kusvika 10% (chikamu chemazana) Al2O3 muchikamu chematrix che blast furnace carbon / graphite zvidhinha (carbon blocks) zvinonyanya kunatsiridza kusagadzikana kwekuora kwesimbi yakanyungudutswa uye ndiko kushandiswa kwealuminium kabhoni zvidhinha mumasisitimu ekugadzira ironmaking. Kechipiri, aruminiyamu kabhoni zvidhinha anoshandiswawo musimbi yakanyungudutswa pretreatment uye tepi madhiri.

Aluminium kabhoni zvidhinha zvesimbi yakanyungudutswa pretreatment

Aluminium silicon carbide zvidhinha inonyanya kushandiswa mumidziyo yekutakura simbi yakanyungudutswa senge matangi esimbi akanyungudutswa. Nekudaro, kana rudzi urwu rwezvinhu zvinoramba ruchishandiswa mumatangi makuru esimbi akanyungudutswa uye musanganiswa wesimbi, uye akasangana nekupisa kwekupisa uye kutonhora mamiriro, inowanzoitika kune yakatsemuka, zvichitungamira mukupeuka kwechimiro. Pamusoro pezvo, nekuti zvidhinha zveAl2O3-SiC-C zvinoshandiswa mumatangi makuru esimbi anopisa uye musanganisi wesimbi kazhinji ane kabhoni ye15% uye yekupisa conductivity yakakwira se17 ~ 21W/(m·K) (800 ℃), ipapo. ndiko kudzikisira Kupisa kwesimbi yakanyungudutswa uye dambudziko rekukanganisa masimbi ematangi makuru akanyungudutswa esimbi nemota dzinosanganisa. Iyo countermeasure ndeyekuzadzisa yakaderera thermal conductivity nekubvisa SiC, yakanyanya thermally conductive chikamu, uku ichidzikisa girafu yemukati uye kunatsa girafu.

Kuburikidza nekutsvakurudza kwekutanga, zvinogumiswa kuti:

(1) Apo girafu yezvinyorwa (chikamu chemazana) mualuminium kabhoni zvidhinha chiri pasi pe10%, chimiro chayo chesangano chinosanganisira Al2O3 ichiita matrix inopfuurira, uye kabhoni inozadzwa mumatrix nenzira yenyeredzi. Panguva ino, thermal conductivity λ yealuminium kabhoni zvidhinha inogona kuverengerwa neformula (1)