Plaster mold factory, is a plaster mold factory Yong (certified), Dalian plaster mold

 Ceramic mold plaster mold of traditional long been used in industrial production. Since the source of raw gypsum plaster mold with a wide, low price; gypsum was mixed with water, has a good fluidity and coagulation properties, can be prepared by a variety of shapes of the mold; gypsum mold having good water absorption and drying properties. Therefore, plaster molds are widely used in grouting ceramic production, spinning, rolling, pressure and other plastic molding process. However, the plaster mold low intensity, poor wear resistance, corrosion resistance is poor, not only easy to make and handling damage during the operation, and will lead to deterioration of the quality molded body. Therefore, to improve the quality of the plaster mold, not only can extend the life of the gypsum mold and to reduce costs, but also improve the quality of a molded body while improving product quality. This article briefly describes the preparation of raw gypsum plaster molds prepared plaster mold, a comprehensive analysis of the main factors affecting the quality of the plaster mold plaster mold, the purpose is to fully understand and grasp the characteristics of the plaster mold, thereby making and rational use of plaster molds, improve the quality of gypsum plaster mold mold wholesale and prolong the life of the plaster mold plaster mold production, for the preparation of low-cost, high-performance foundation fused silica crucible. Gypsum powder, said hemihydrate or calcined gypsum (2CaSO4 · H2O) chemically, by the abundance of natural gypsum mine CaSO4 · 2H2O and become heated to 150 degrees to 170 degrees loses water of crystallization contained 3/4 a. A quantity of calcined gypsum is mixed with water into a paste soon after solidification, back into Ca-SO4 · 2H2O. We use gypsum oil flowing liquid into a solid plasticity, making molds and firing works, the entire reaction process approximately fifteen minutes plaster mold making, will produce some heat, the proportion of gypsum powder and water, about 2: 3 water too much, poor fastness after solidification; if you need strength, to put it more gypsum powder. Plaster mold factory, is a plaster mold factory Yong (certified), Dalian plaster mold is provided by the high-density city Yong plaster mold factory. Gaomi is brave plaster mold factory (www.shigaoxianmuju.net) (www.naiyongmuju.com) Shandong Weifang, lime, gypsum leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Yong is the plaster mold factory in leadership with the staff warmly welcome all inquiries negotiations to create plaster mold factory is brave a better future.