PA80 series castables are used with PA80 glue as the bonding agent when the maintenance time is short. It is a kind of high-strength wear-resistant, quick repair and quick repair. It is more suitable for emergency repair and repair of large kiln construction, without baking, not easy to burst, and greatly shortening the construction period. It is suitable for the front and rear kiln mouth, kiln door cover, grate cooler, tertiary air duct, decomposition furnace and other parts of the new dry process cement kiln.
1. This product forms a three-dimensional network structure of phosphate at high temperature, which makes it have the characteristics of high normal temperature and medium temperature strength without decreasing, and enhances the wear resistance of the castable at high temperature. The increase of the high-temperature thermal strength enhances the corrosion resistance and erosion resistance of the castable.
2. Good thermal shock stability
Due to the use of phosphates as the binding agent, there are few internal impurities in the material, and when the temperature changes sharply, the volume stress generated is small, and the thermal shock stability of the refractory material is significantly improved.
2. It is recommended to use a forced mixer for mixing. All mixing tools and mixers must be clean and free of debris.
3. The mold must be cleaned before the inch mold, and the mold must be coated with a layer of engine oil when the mold is inch. Carry out inch molds.
4. Before pouring, first coat the anchor solid with a layer of asphalt and paint. When the pouring thickness is within 250mm, it should be poured to the specified thickness at one time and vibrate until it is fully compacted.
5. Curing of the castable: The castable can be used after natural curing for 8 hours.
6. Use a mixer to mix the castable, pour the castable into the mixer first, and add 5-3% of the condensate. Adjust according to the hardening time. Generally, the temperature in autumn is ≤25 o'clock, and 5% can be added. If the temperature of the part to be constructed is ≥30, it can be added 3%. Pour to the specified position until completion.
7. In the actual operation, the castable is mainly mixed by a mixer, and manual mixing is prohibited. When there is no way, manual mixing is adopted. But the ground must be clean, the castable must be added with a coagulant, the amount of coagulant added is 3%, where the site construction can be added 5% and 8% PA80 glue for quick mixing and quick use, guarantee within 10 minutes run out.
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