Silica sol process with green wax (median-temperature wax) and using better shell coating sand, it offers the casting parts in very smooth surface, tight tolerance, suitable for small part and precise part making and widely use stainless steel material etc, but carbon steel is possible too. Always in working the casting part in weight less than 1kgs or 0.5kgs/PC.
General investment casting process actually called soluble glass process with white wax (low-temperature wax ) and rough sand with relative rough surface, little bigger tolerance, suitable for large part making more than casting weight from 0.5 to 100KGS especially for carbon steel, alloy steel.
Ningbo Long Rui Machinery Manufacturing Co., Ltd. Belongs to Luoyang City, is a research and development, production, trade in one of the machining, precision casting company. The company has advanced production equipment, machining centers, CNC lathes, lathe, Milling Machine, vertical drilling, radial drilling more than 30 units. Company specializes in the use of sodium silicate and silica sol process, sodium silicate composite process produces carbon steel, alloy steel castings and sand castings. Products wide range of applications. Mainly used in railway systems, construction machinery, cars, trucks, ships, petroleum, mining, agricultural, construction, pump valve, electromechanical, hardware tools, power equipment and other related industries. Product quality and service has won praise and love the user.
