Roller kilns fire fast, stressing walls with frequent thermal shock; spall-resistant bricks and suspended roof slabs are preferred.
Problem-by-problem analysis with solutions and recommended refractories
Spalling-resistant high-alumina brick introduces ZrO₂ (3-6%) for transformation and microcrack toughening. Al₂O₃≥70%, thermal-shock stability ≥15 cycles, greatly improved resistance to structural spalling under frequent temperature cycling.
Learn More →
Lightweight high-alumina insulating brick (Al₂O₃≥48%, 1500℃ max, bulk density 0.8-1.2 g/cm³, conductivity ≤0.5 W/(m·K)) saves energy with light weight and low thermal conductivity.
Learn More →Intermittent kiln for ceramics firing, frequent heating/cooling cycles; thermal shock and deformation of wall/roof refractories are prominent
View Problems & Solutions →Tunnel kiln car linings face repeated heating and load abrasion; burning-zone brickwork and car tops are the critical zones.
View Problems & Solutions →
WeChat · 17513376789