Ubume be-GB bucaciswe ngokubanzi izitena ezikhanyelayo

Imilinganiselo yangaphandle yezitena eziphikisayo ngexesha lokuvelisa ngokuqhelekileyo ihlukaniswe kwiimeko ezimbini. Eyokuqala ibulawa ngokobungakanani be-GB besitena se-refractory kwaye okwesibini: ubungakanani be-non-GB. Ubungakanani be-Non-GB bunobungakanani obuqhelekileyo bezitena obukhethekileyo, umzekelo, ubungakanani bangaphandle bukhulu, kwaye imilo ayitshintshi kakhulu. Nangona kunjalo, ubungakanani obukhethekileyo buyimeko yeenguqu ezinkulu kubukhulu bangaphandle, kunye netrapezoidal prismatic round okanye i-concave-convex surface enemingxuma ejikelezayo yizitena ezikhethekileyo. Xa uvelisa, kuyimfuneko ukunciphisa ukuveliswa kwee-molds kuba iindleko zokuvelisa ziphezulu kunobukhulu be-GB. .

Izitena eziqhelekileyo ezichasayo zihlulwe zibe yimigangatho ngokubanzi kunye neenkcukacha ezinokwakheka okukhethekileyo ngokweenkcukacha, imilinganiselo kunye neeparitha zezitena eziphikisayo. Ngokwezixhobo ezahlukeneyo, izitena eziqhelekileyo ezichasayo kufuneka zihlangabezane nale miqathango ilandelayo;

(1) Akukho ngaphezu kwesine izikali zokulinganisa;

(2) Umyinge wemilinganiselo yangaphandle yezitena eziphikisayo ungaphakathi koluhlu lwe-1:4;

(3) Akukho zimbombo zeconcave, imingxuma kunye nemisele;

(4) Ubunzima buyi-2-8 kg (isitena sodongwe) kunye ne-2-10 kg (isitena esiphezulu se-alumina) ngokulandelanayo.

Kwizitena ze-silica, izitena ze-magnesia kunye nezitena ze-alumina ze-magnesia, iimveliso eziqhelekileyo kufuneka zihlangabezane nezi ngasentla (1), (2), (3), kunye nobunzima buhlukile: ubunzima be-silica-njongo yesitena jikelele yi-2- 6 kg. , ubunzima bezitena ze-magnesia kunye ne-magnesia alumina isitena ngu-4-10 kg.

Izitena ezinqabileyo ezinokwakheka okukhethekileyo ziyimveliso yezitena eziphikisayo ezinemilinganiselo eyahlukileyo ukusuka kwimimiselo eqhelekileyo:

(1) Umlinganiselo wemilinganiselo yangaphandle ungaphakathi koluhlu lwe-1:6;

(2) Ayinangaphezu kweekona ezimbini zeconcave (kubandakanywa neekona ezimile okwe-arc) okanye i-angle ebukhali ye-50o ukuya kuma-75o, okanye ingabi ngaphezu kwe-4 grooves;

(3) Ubunzima buyi-2-15 kg (isitena sodongwe) kunye ne-2-18 kg (isitena esiphezulu se-alumina) ngokulandelanayo.

Kwizitena ze-silica, izitena ezinqabileyo ezinqabileyo ezikhethekileyo kufuneka zihlangabezane nale miqathango ilandelayo;

(1) Umlinganiselo wesayizi ngokubanzi ungaphakathi kuluhlu lwe-1:5;

(2) Ayinayo i-angle ye-concave engaphezu kweyodwa, okanye i-angle e-acute ye-50℃ˉ75℃, okanye ingabi ngaphezu kwe-2 grooves (ngokwenani lilonke);

(3) Ubunzima buyi-2-12 kg.

Kwizitena ze-magnesia kunye nezitena ze-alumina ze-magnesia, zonke ezinye izitena ze-magnesia kunye nezitena ze-alumina ze-magnesia ezingenakufakwa kwinkcazo yezitena eziqhelekileyo eziphikisayo zibizwa ngokuba yizitena ezinqabileyo ezinqabileyo.