Shandong Sheng Machinery Co., Ltd specializes in producing various types of brick, brick machine, brick machine, hollow brick, brick pavement and other equipment of the old brick factory.
Pressure molded brick design, based on the principle of the known limits of the molding pressure, unburned brick molding pressure is not the bigger the better. But after forming pressure exceeds its limit, the molding pressure continues to increase, not only the brick bulk density increases, but will gradually decrease. Adobe residual air in the ultra-extreme pressure, but the pressure will produce a reaction force cancellation. Experiments show that, when the molding pressure molding pressure exceeds the limit, the strength of the product was reduced, to improve the water absorption performance is deteriorated.
    Therefore, the design of the molding pressure should take a scientific attitude, depending on the product strength requirements (initial strength and ultimate strength), to determine its appropriate specific molding pressure. Roughly speaking, the aggregate weight of high-grade unburned, the molding pressure should be controlled for 8-20MPa, while low-grade unburned lightweight aggregate, 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 machine volume, complex structure, high cost, inconvenient transportation and installation, but also to make the energy consumption increases and the emergence of unburned brick deterioration (such as spalling, etc.).
     Molding pressure level limit by two factors may be; the physical properties of materials, brick machine pressure mode, the biggest factor affecting the physical properties and particle size distribution of the foregoing. Grading and thicker the better, the ultimate pressure will be high, but not good and fine grading, the ultimate pressure is low. In terms of compression methods, the greatest impact is one-sided or double-sided pressure once repeatedly pressurized.
That the use of a single punch (such as eight or sixteen bore 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 machine, etc.). Its ultimate molding pressure on high. Up 10-25MPa, brick compressive enemies increased accordingly.
Therefore, the design of the molding pressure should first consider the extreme pressure multi-selection press and physical factors affecting grain and both more common form. A material factor, a brick of factors, both should be considered.
     Shandong Sheng Machinery Co., Ltd has been committed to cement machinery products development, production and sales, with advanced equipment, professional and technical skills, 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 the user, the main block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, wire rod machine equipment. Currently has 19 branch offices and six foreign countries (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported to more than 100 countries and regions.