The hollow brick has strict requirements for the forming operation. If there is any negligence in the production preparation and operation process, it will bring many problems to the forming. Therefore, special attention should be paid to the following points during the molding operation:

The production process of sintered bricks is generally composed of four parts: raw material preparation, blank body forming, wet blank drying, and finished product firing.After raw materials are excavated, some can be processed by adding water, stirring and grinding equipment,while others will not work.Raw materials,such as mountain soil, coal gangue and shale,are to be broken and finely chopped, then followed by water mixing and grinding.The choice and preparation of raw materials directly affect the quality of the finished product.As the saying goes, raw materials are fundamental to making sintered bricks,showing the importance of the raw materials preparation and raw materials.