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PA-80 fire-resistant molding material
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PA-80 fire-resistant molding material is confected with PA-80 high temperature resistant adhesive, combined fire-resistant powder, high aluminium content material and solidifying additive. It has some features such as fire-resistance, high strength and heat-stability. During the period of production, the temperature it can reach is 300℃ higher than normal molding material can. It is mainly used in molding as a whole or repair at the wall, top and mouth of heating furnace and even-heat furnace. Our plant has built a molding material prefabrication workshop to make various prefab components according to workpiece drawing. All these prefab components will be roasted at 800℃ in order to shorten the roasting time for customers.
Main chemical and physical indexs
| Tag |
PA-80（Ⅰ） |
PA-80(Ⅱ) |
Enhanced type with steel fibrePA-80(Ⅱ) |
| Chemical components |
Al2O3 |
70 |
80 |
70 |
| Fe2O3 |
2.5 |
2.0 |
2.5 |
| Chemical components Density g/cm3 110℃×24h |
2.5 |
2.6 |
2.5 |
| Press-resistant strength MPa |
110℃×24h |
30 |
40 |
40 |
| 1400℃×3h |
60 |
70 |
70 |
| Bend-resistant strength MPa |
110℃×24h |
4 |
5 |
5 |
| 1400℃×3h |
8 |
9 |
10 |
| Line-changing rate % 1400℃×3h |
-0.5~0 |
-0.2~0 |
-0.1~0 |
| Highest temperature ℃ |
1450 |
1450 |
1450 |
| Amount of adhesive% |
18 |
18 |
18 |
| Use |
The top and wall of steel-rolling heating furnace, the front and back and mouth of concrete kiln and cooling machine’s inside liner of decomposing furnace |
High temperature -resistant and durable parts such as Fuel-spraying tube at the front mouth of concrete kiln | | |
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