Refractory bricks are key refractory materials for high-temperature industries, and their quality comes from a strict production process:
1. Raw Materials
Selected high-quality raw materials are purified, crushed, ground, proportioned accurately, and mixed evenly to ensure stable and uniform mud.
2. Forming
The mixture is pressed into shape by brick presses. Different forming methods are used based on brick types, ensuring uniform density, no cracks or chips, and acceptable dimensional tolerance.
3. Drying
A step-by-step temperature-controlled drying process is used to reduce moisture content below 0.6%. This effectively prevents cracking and deformation during firing and improves the strength of semi-finished products.
4. Firing
High-temperature firing is the core process. Green bricks go through preheating at 1200°C, sintering at 1500-1750°C, and gradual cooling in a tunnel kiln. Precise temperature control gives the products excellent thermal shock resistance and erosion resistance.
5. Final Inspection & Processing
After firing, bricks are inspected for dimensions, appearance and physical–chemical properties. Unqualified products are crushed and recycled.
6. Packaging & Storage
Bricks are stacked on pallets or in wooden boxes by specification, stored in dry and ventilated warehouses to avoid moisture, and clearly labeled for traceability.
From raw materials to finished products, Huaxiang Refractories maintains strict control over every step, showing true craftsmanship in refractories, and provides reliable high-temperature material solutions for customers.
