项目 | 黏土质 | 高铝质 | 莫来石质 | 刚玉质 | |||||||
NP-45 | LP-55 | LP-70 | MP-55 | MP-70 | GP-60 | GP-70 | GP-80 | GP-85 | GP-90 | ||
耐火度/℃ | ≥1750 | ≥1770 | ≥1790 | ≥1770 | ≥1790 | ≥1790 | ≥1825 | ≥1850 | ≥1850 | ≥1850 | |
抗折强度/MPa | 110℃ | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 | ≥2.0 |
高温烧后 |
≥5.9 1200℃ |
≥5.9 1400℃ |
≥5.9 1400℃ |
≥5.9 1400℃ |
≥5.9 1500℃ |
≥5.9 1400℃ |
≥5.9 1500℃ |
≥5.9 1500℃ |
≥5.9 1500℃ |
≥5.9 1500℃ |
|
荷重软化温度T2/℃ | ≥1200 | ≥1250 | ≥1300 | ≥1400 | ≥1500 | ≥1570 | ≥1550 | ≥1650 | ≥1700 | ≥1700 | |
粘结时间/min | 1~2 | 1~2 | 1~2 | 1~2 | 1~2 | 1~2 | 1~2 | 1~2 | 1~2 | 1~2 | |
线变化率/% | — | — | — | — | — |
0~+1 1400℃,3h |
— | — |
0~+1 1500℃,3h |
0~+1 1500℃,3h |
|
粒度/% | >0.5㎜ | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
<0.076㎜ | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | |
ω(Al2O3)/% | ≥45 | ≥55 | ≥70 | ≥55 | ≥70 | ≥80 | ≥70 | ≥80 | ≥85 | ≥90 |
材质 | 高铝质 | 黏土质 | ||
HLP—50 | HLP—70 | HNP—45 | ||
冷态抗折强度/MPa | 300℃,24h | ≥0.5 | 0.5 | 0.5 |
1400℃,3h | ≥5.0 | ≥5.0 | ≥5.0 | |
粒度含量/% | >0.5㎜ | ≤2 | ≤2 | ≤2 |
<0.074㎜ | ≥50 | ≥50 | ≥50 | |
ω(Al2O3)/% | ≥50 | ≥70 | ≥45 | |
耐火度/℃ | ≥1770 | ≥1790 | ≥1750 |