蜂窝陶瓷化学成份chemical composition of honeycombceramics
成 份
composition
铝质瓷
alumina
莫来石
mullite
致密堇青石质
compact-cordierite
多孔堇青石质
porous-cordierite
炻 瓷
stoneware
莫来石刚玉
mullite corundum
莫来石-堇青石质mullitecordierite
sio2
40~45
26~27
47~49
46~48
68~72
21.5~22.5
28~36
al2o3
48~55
70~72
36~38
33~35
20~23
71~72
55~65
mgo
-
-
6~8
10~12
0.50~1.0
2.00~2.10
2.5~3.2
fe2o3
≤1.0
≤1.0
≤1.0
≤1.0
≤1.10
≤0.5
≤0.8
na2ok2o cao
4.0~5.5
1.0~1.5
2.50~3.50
1.00~1.50
2.50~3.30
0.25~0.30
≤1.0
tio2bao
-
-
0.7~0.8
0.7~0.8
≤0.5
0.10~0.15-
-
蜂窝陶瓷蓄热体主要规格型号
型 号
type
规 格
specification
mm譵m譵m
孔密度
channels density
cell/in2
孔 数
no. of channels
孔格宽 width of chennel
(mm)
壁 厚.
thickness of wall(mm)
比表面积surface area
(m2/m3)
开孔率
hole fraction
(%)
hca-18
150?150?300
18
25?25
4.9
1.0
540
67
hcc-46
150?150?300
46
40?40
3.0
0.7
825
65
hcm-72
150?150?300
72
50?50
2.26
0.72
1008
57
hcs-100
150?150?300
100
59?59
2.15
0.381
1339
72.3
注:hca—氧化铝(alumina)hcc--堇青石(cordierite) hcm--莫来石(mullite)
hcs--炻 瓷(stoneware)hcmc----莫来石-堇青石质(mullite cordierite)
蜂窝陶瓷蓄热体性能指标
蓄热体材质
ceramic body material
铝质瓷
alumina
莫来石
mullite
致密堇青石质
compact-cordierite
多孔堇青石质
porous-cordierite
炻 瓷
stoneware
莫来石刚玉
mullite corundum
莫来石-堇青石质mullitecordierite
密度density
g/cm3
〉2.9
2.1~2.25
2.35~2.50
1.85~1.95
2.10~2.20
2.20~2.30
2.1~2.25
热膨胀系数
the hot coefficient of expansion (20-800℃?10-6)
5.50~7.00
6.00~6.50
1.30~3.50
2.30~5.00
5.50~7.00
6.00~6.50
2.50~5.50
热容heat holds j/kg.k
850-1050
850~1050
850~1200
750~800
850~950
900~1100
850~1050
导热系数heat conductioncoefficient
(20~100℃ w/mk)
1.4~2.0
1.4~2.0
1.5~2.5
1.3~1.5
1.0~1.2
1.4~2.0
1.4~2.0
耐火度fire-resistant degree℃
≥1400
≥1500
≥1300
≥1300
≥1200
≥1550
≥1550