Shandong Shengya Machinery Co., Ltd. specializing in the production of various types of brick, brick machine, brick machine, hollow brick, pavement brick and other equipment of the old brick factory.
     Unburned brick molding pressure is not the bigger the better, but the molding pressure exceeds its limit, continue to improve, the volume density of the molded brick pressure not only does not increase, but will gradually decrease. Adobe residual air in the ultra-extreme pressure, will produce a reaction force to counteract the pressure. Experiments show that when the molding pressure molding pressure exceeds the limit, the strength of the product is reduced, water absorption improved performance degradation.
Therefore, the design of the molding pressure should take a scientific attitude, depending on the product strength requirements (initial strength and final strength) to specifically determine its appropriate molding pressure. Generally speaking, heavy aggregate grade unburned, the molding pressure should be controlled to 8-20MPa, and lightweight aggregate low grade unburned, the molding pressure should be designed to 10-15MPa, in order to avoid excessive compression of lightweight aggregate loses its light weight.
Molding pressure design is too large, not only the huge brick volume, complex structure, high cost, inconvenient transportation and installation, but also to make increased energy consumption and the emergence of unburned brick deterioration (such as spall, etc.).
Molding pressure level limit of two factors may be; physical properties of materials, brick-making machine of pressure means, the physical properties of the most important factor and the aforementioned particle size distribution. Grading and thicker the better, the ultimate pressure will be high, but not good and fine grading, the ultimate pressure is very low. In the press-side, the greatest impact is on one side or both sides of a pressurized repeatedly pressing.
That the use of a single punch (such as eight or sixteen hole hole disc brick press), the ultimate pressure is very low, generally only 6.0-8.0MPa, so dense brick poor, low unburned strength. And many times when using double-sided pressure (such as hydraulic brick making machine, etc.). Its ultimate molding pressure is high. Up 10-25MPa, brick compressive enemies increased.
   Therefore, the design of the molding pressure should first consider extreme pressure multi-selection press and tablets to both factors and more common form. A material factor, a brick factor, both should be considered.
Shandong Shengya Machinery Co., Ltd. has been committed cement products machinery development, production and sale of advanced equipment, superb technical expertise and two decades of experience, the company has always been at the forefront of research and development center block molding machine market development Follow the advanced technology at home and abroad, to develop products for different investment needs of users, mainly block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, telephone poles machine equipment. At present the country with 19 offices and six overseas plants (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported more than 100 countries and regions.