|
|||||||||||||||||||||||||||||||
|
牌號
指標
|
N-1
|
N-2a
|
N-2b
|
N-3a
|
N-3b
|
N-4
|
N-5
|
N-6
|
|
|
耐火度℃≥
|
1750
|
1730
|
1730
|
1710
|
1710
|
1690
|
1670
|
1580
|
|
|
0．2Mpa荷重軟化開始溫度≥
|
1400
|
1350
|
1320
|
1300
|
|||||
|
重燒線變化%
|
1400℃2h
|
+0.1
-0.4
|
+0.1
-0.5
|
+0.2
-0.5
|
|||||
|
1350℃2h
|
+0.2
-0.5
|
+0.2
-0.5
|
+0.2
-0.5
|
+0.2
-0.5
|
|||||
|
顯氣孔率%≤
|
22
|
24
|
26
|
24
|
26
|
24
|
26
|
28
|
|
|
常溫耐壓強度Mpa℃≥
|
30
|
25
|
20
|
20
|
15
|
20
|
15
|
15
|
|
|
指標 牌號
|
LZ-48
|
LZ-55
|
LZ-65
|
LZ-75
|
|
AL2O3% ≥
|
48
|
55
|
65
|
75
|
|
耐火度℃≥
|
1750
|
1770
|
1790
|
1790
|
|
0．2Mpa荷重軟化開始溫度℃≥
|
1420
|
1470
|
1500
|
1520
|
|
顯氣孔率%≤
|
23
|
23
|
22
|
22
|
|
常溫耐壓強度Mpa≥
|
39.2
|
44.1
|
49
|
53.9
|
