1. The inner cavities at both ends of the ceramic roller bar shall be filled with 30-50mm long fire-resistant fiber cotton, with a depth of 60-80mm, but not more than 100mm.
2. The surface protective coating can reduce the corrosion of chemical substances on the roll bar and reduce the occurrence of roll breaking accident, so the surface shall be coated with protective coating before entering the kiln. The sizing length is generally 100mm longer than the effective width in the kiln, and the thickness is 0.8mm-1.2mm.
3. Before being loaded into the kiln, the ceramic roller should be fully dried at the kiln side or top (about 1-2 days) before being loaded into the kiln for use.
4. Clean the surface adhesives and attachments regularly and timely. This product belongs to brittle material, so knock, impact, impact and other methods that are easy to generate mechanical stress shall be avoided during cleaning.
5. It is generally better to cool down to 800 ℃ during centralized replacement. Whether it is loaded into or drawn out of the furnace, it shall be as soon as possible, and the products drawn out shall be cooled correctly to prevent wind crystals caused by local quenching.
6. When the rod is drawn at high temperature, the ceramic roller shall be rotated quickly and placed on a special rotating support padded with fire-resistant cotton, and kept rotating until the temperature drops below 600 degrees, or covered with insulating cotton to cool it slowly. The hot roller drawn out must not directly contact the ground, and avoid contact with cold metal and objects with large temperature difference.
