临沂市科翰硅制品有限公司

Application in precision casting

As the quality and precision requirements of precision castings increase, the disadvantages of “precision casting” and environmental pollution caused by the manufacturing process of water glass or ethyl silicate as the binder have seriously hindered the development of China's foundry industry. Therefore, in order to improve the quality of castings and narrow the gap with the international precision casting industry, it is imperative to replace water glass and ethyl silicate with silica sol. At the same time, the use of silica sol-water glass composite shell making process can improve the smoothness of castings without increasing large financial resources and material resources and changing the main process.