Awọn nkan | Kemikali akopo (ida ti o pọju)/% | Ìwọ̀n olópo g/cm³ | Owu ti o han % | Refractoriness ℃ | 3Al2O3.2SiO2 Ipele (Ipin ti o pọju)/% | |||
Al₂O₃ | TiO₂ | Fe₂O₃ | Na₂O+K₂O | |||||
SM75 | 73-77 | ≤0.5 | ≤0.5 | ≤0.2 | ≥2.90 | ≤3 | 180 | ≥90 |
SM70-1 | 69-73 | ≤0.5 | ≤0.5 | ≤0.2 | ≥2.85 | ≤3 | 180 | ≥90 |
SM70-2 | 67-72 | ≤3.5 | ≤1.5 | ≤0.4 | ≥2.75 | ≤5 | 180 | ≥85 |
SM60-1 | 57-62 | ≤0.5 | ≤0.5 | ≤0.5 | ≥2.65 | ≤5 | 180 | ≥80 |
SM60-2 | 57-62 | ≤3.0 | ≤1.5 | ≤1.5 | ≥2.65 | ≤5 | 180 | ≥75 |
S-Sintered; M-Mullite; -1: ipele 1
Awọn apẹẹrẹ: SM70-1, Sintered Mullite, Al₂O₃: 70%; Ipele 1 ọja
Botilẹjẹpe mullite wa bi nkan ti o wa ni erupe ile adayeba, awọn iṣẹlẹ ni iseda jẹ ṣọwọn pupọ.
Ile-iṣẹ naa da lori awọn mullites sintetiki eyiti o waye nipasẹ yo tabi 'calcining' ọpọlọpọ awọn alumino-silicates bii kaolin, awọn amọ, ṣọwọn andalusite tabi yanrin daradara ati alumina si awọn iwọn otutu giga.
Ọkan ninu awọn orisun adayeba ti o dara julọ ti mullite jẹ kaolin (gẹgẹbi awọn amọ kaolinic). O jẹ apẹrẹ fun iṣelọpọ awọn iṣipopada gẹgẹbi ina tabi awọn biriki ti ko ni ina, awọn kasiti ati awọn apopọ ṣiṣu.
Sintered mullite ati mullite dapo ti wa ni akọkọ ti a lo fun isejade ti refractories ati awọn simẹnti ti irin ati titanium alloys.
• Rere irako resistance
• Low gbona imugboroosi
• Low gbona elekitiriki
• Iduroṣinṣin kemikali ti o dara
• O tayọ thermo-darí iduroṣinṣin
• O tayọ gbona mọnamọna resistance
• Porosity kekere
• Ni afiwe fẹẹrẹ
• Oxidation resistance