粘土质耐火泥
- 商品名称: 粘土质耐火泥
- 产品描述
-
粘土质耐火泥浆理化指标
项目 Items
指标 Indicators
NN—30
NN—38
NN—42
NN—45A
NN—45B
耐火度(℃)不低于 Refractoriness (℃ ) not less than
1630
1690
1710
1730
1730
Al₂O₃(%)不小于 Al₂O₃(%)not less than
30
38
42
45
45
冷态抗折粘结强度
(MPa)
Cold flexural bond strength
(MPa)
110℃干燥后 不小于
After drying at 110℃ , Not less than
1.0
1.0
1.0
1.0
2.0
1200℃ ×3h 烧后 不小于
After firing at 1200℃ ×3h, Not less than
3.0
3.0
3.0
3.0
6.0
0.2MPa 荷重软化温度 Ti/℃ 不低于
0.2MPa refractoriness under load Ti/℃ not less than
—
1200
线变化率(%)
Linear change rate (%)
1200℃ ×3h 烧后 After firing at 1200℃ ×3h
+1 ~ -3
—
1300℃ ×3h 烧后 After firing at 1300℃ ×3h
—
+1 ~ -5
粘接时间(min) Bonding time (min)
1 ~ 3
粒度(%)
Granularity (%)
-1.0 ㎜
100
+0.5 ㎜ 不大于 +0.5mm Not greater than
2
-0.074 ㎜ 不小于 -0.074mm Not less than
50
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