Brown Fused Alumina ni abrasives kali, kali ambayo inafaa sana kwa kusaga metali za nguvu za juu za mkazo. Tabia zake za joto huifanya kuwa nyenzo bora kwa matumizi katika utengenezaji wa bidhaa za kinzani. Nyenzo hii pia hutumika katika matumizi mengine kama vile ulipuaji na ugumu wa uso.
Daraja | Vipimo | Muundo wa Kemikali(F46) | ||||
Al2O3 | SiO2 | Fe2O3 | TiO2 | CaO | ||
Daraja la matofali * | 0-1,1-3,3-5mm-8+16,-16+30,-30+60mesh,Faini | ≥95.2 | ≤1.0 | ≤0.3 | ≤3.0 | ≤0.4 |
Daraja la Castable | 0-1,1-3,3-5mm-8+16,-16+30,-30+60mesh,Faini | ≥95 | ≤1.5 | ≤0.3 | ≤3.0 | ≤0.4 |
Daraja la Vitrified | F12-F220 | ≥95.5 | ≤1.0 | ≤0.3 | 2.2-3.0 | ≤0.4 |
Resin &Mlipuko Daraja | F12-F220 | ≥95 | ≤1.5 | ≤0.3 | ≤3.0 | ≤0.4 |
Daraja ndogo | P240-P1200 | ≥92-95 | ≤1.0-1.8 | ≤0.3-0.5 | ≤2.2-4.5 | - |
F240-F1000 | ≥88-95 | ≤1.0-2.5 | ≤0.3-0.5 | ≤2.2-6.5 | - | |
Kiwango myeyuko | 2050 ℃ | |||||
Kinzani | 1980 ℃ | |||||
Msongamano wa kweli | 3.90ming/cm3 | |||||
Mohs ugumu | Dakika 9.00 |
Vipengee | Ukubwa | Muundo wa Kemikali (%) | ||||
Al2O3 | TiO2 | CaO | SiO2 | Fe2O3 | ||
A na AP1 | F4~F80 P12~P80 | 95.00~97.50 | 1.70-3.40 | ≤0.42 | ≤1.00 | ≤0.30 |
F90~F150 P100~P150 | 94.50~97.00 | |||||
F180~F220 P180~P220 | 94.00~97.00 | 1.70-3.60 | ≤0.45 | ≤1.00 | ≤0.30 | |
F230~F800 (P240~P800) | ≥93.50 | 1.70 ~3.80 | ≤0.45 | ≤1.20 | ≤0.30 | |
F1000~F1200 (P1000~P1200) | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
P1500~P2500 | ≥92.50 | ≤4.20 | ≤0.55 | ≤1.60 | ≤0.30 | |
AB pamoja na AP2 | F4~F80 P12~P80 | ≥94.00 | 1.50 ~3.80 | ≤0.45 | ≤1.20 | ≤0.30 |
F90~F220 P100~P220 | ≥93.00 | 1.50 ~4.00 | ≤0.50 | ≤1.40 | - | |
F230~F800 (P240~P800) | ≥92.50 | ≤4.20 | ≤0.60 | ≤1.60 | - | |
F1000~F1200 (P1000~P1200) | ≥92.00 | ≤4.20 | ≤0.60 | ≤1.80 | - | |
P1500~P2500 | ≥92.00 | ≤4.50 | ≤0.60 | ≤2.00 | - | |
AS | 16-220 | ≥93.00 | - | - | - | - |
Brick/Vitrified Grade BFA : Inatolewa kwa kutumia Bauxite ya daraja maalum katika vigezo vya muunganisho vinavyodhibitiwa. Daraja hili linafaa kwa Bidhaa za Matofali/Vitrified zinazozuia Nyufa/ Mipasuko, Mashimo na madoa meusi kwenye bidhaa ya mwisho.
Alumina Iliyochanganywa ya Brown hutengenezwa kwa kuyeyushwa kwa Bauxite Iliyokaa katika tanuru ya umeme ya arc kwenye joto la zaidi ya 2000 ° C. Mchakato wa ugaidi wa polepole hufuata muunganisho, ili kutoa fuwele zilizozuiliwa. Usaidizi wa kuyeyuka katika kuondoa salfa na kaboni iliyobaki , Udhibiti mkali wa viwango vya Titania wakati wa mchakato wa kuunganisha huhakikisha ugumu wa juu wa nafaka.
Kisha machafu yaliyopozwa hupondwa zaidi, kusafishwa kwa uchafu wa sumaku katika vitenganishi vya nguvu ya juu vya sumaku na kuainishwa katika sehemu za saizi nyembamba ili kuendana na matumizi ya mwisho. Mistari iliyojitolea hutoa bidhaa kwa matumizi tofauti.