Optimizing Brick Manufacturing Process: Coordinated Control of Raw Material Ratio and Molding Parameters

Optimizing Brick Manufacturing Process: Coordinated Control of Raw Material Ratio and Molding Parameters

The key to optimizing brick manufacturing lies in coordinating the "hardness" of the raw materials with the "pressing force of the machine." First, the raw material ratio determines the "plasticity" of the brick blank. The moisture content of the soil or sand needs to be adjusted to the appropriate level, ideally forming a ball when squeezed in the hand but crumbling when dropped. If too dry, it will be difficult to shape during pressing, and the brick blank will easily fall apart; if too wet, the brick blank will easily deform after pressing and is more prone to cracking during drying. Simultaneously, the particle size distribution in the raw materials must be reasonable. Fine powder makes the brick denser, while an appropriate amount of coarse particles can enhance strength and reduce shrinkage.

The pressure and time during molding are another crucial factor. The machine pressure and holding time must be adjusted according to the actual state of the raw materials. For raw materials with high moisture content or strong viscosity, the pressure can be appropriately reduced and the holding time extended to allow sufficient time for moisture and air to escape, preventing internal cracks in the brick blank. For drier raw materials, greater pressure is required to achieve a compacted result. The general principle is to find the minimum necessary pressure to achieve the highest density of the bricks, while ensuring stable molding and preventing chipping or breakage. This guarantees quality while reducing machine wear and energy consumption.

Ultimately, good processes require fine-tuning in practice. It is recommended to conduct small-batch trials before mass production. With a fixed raw material ratio, try different pressure and time parameters to press a batch of bricks. Then, track and record their performance throughout the drying and curing process, comparing which group of bricks has the highest final strength and fewest cracks. Through this comparison, find the "golden combination" best suited for your specific raw materials, thereby achieving stable, efficient, and high-quality continuous production.