1. The construction template of high alumina refractory casting material can be made of steel plate or hard wood board. The template requires high strength, good rigidity, no deformation, no displacement, and no leakage. The steel formwork is coated with release agent, and the wooden formwork is coated with waterproof paint. Reusable templates need to be cleaned and then painted before use.

2. The amount of water added to the high aluminum casting material shall strictly follow the instructions for use and shall not exceed the limit. The amount of water added should be small but not excessive.

3. The mixing time for high alumina refractory castables shall not be less than 5 minutes. Use a forced mixer during operation. When stirring, dry mix first, then add 80% of the water used and stir. Depending on the degree of dryness and wetness, add the remaining water and continue stirring until it is usable.

4. High aluminum casting materials must be used in full bags. The mixed pouring material is generally used up within 30 minutes. Shorten the time appropriately in a high-temperature and dry working environment. Castables that have already set initially cannot be reused.

5. The pouring material poured into the mold frame should be immediately compacted layer by layer with a vibrating rod, and the height of each layer should not exceed 300 millimeters. The vibration spacing should be around 250 millimeters. Try to avoid touching the anchor during vibration and avoid prolonged or heavy vibrations in the same position. After seeing the surface slurry return, slowly withdraw the vibrating rod to avoid segregation and voids in the pouring layer.

After the surface of the poured material is dry, the exposed parts in the air should be immediately covered with plastic film or straw bag. After the initial setting reaches, it is necessary to regularly sprinkle water to keep its surface moist. The maintenance time should be at least two days, and water should be continuously sprinkled every day for maintenance. The load-bearing formwork can only be removed after the strength reaches 70%.

8. After the template is removed, the pouring body should be inspected in a timely manner. Quality issues such as honeycombing, peeling, and voids should be promptly repaired.

Contact me:Email:wp@cnjingganrefractory.com/sdwenping@163.com

TEL: 86-0533-4188518 / FAX: 86-0533-4188518

Rose:+86-13275332819(wechat/whatsapp number)