Silica sol precision casting is not only applicable to the casting of various types and alloys, but also the dimensional accuracy and surface quality of the castings produced by this technology are far superior to other casting methods. Even if it is difficult to cast castings through other casting methods, the process is complex and difficult, and it can withstand high temperatures. 

        If we want to produce products with relatively simple shapes, small sizes and high dimensional accuracy requirements, we can first choose profiles or use cast steel for processing. The advantage of using steel molds is that the material is cheap, while the disadvantage is that the molds are heavy and there are certain requirements for processing tools. Some manual operations are quite difficult. Such as complex shapes, high precision requirements, product dimensions, etc. 

       The interlayer drying time of the precision casting silica sol has been further shortened. However, to increase the interlayer drying time of the silica sol, it can be effectively reduced to 1 hour. The shell-forming environment, especially the wind speed, has very strict requirements. For castings with slender holes, the drying time of the interlayer can be appropriately extended. Silica sol precision casting features excellent surface quality, high-temperature strength, good thermal shock stability and high-temperature deformation resistance. Silica sol precision casting is a casting process that requires little or no cutting. These products represent advanced casting technologies in the foundry industry. 

      The size of silica sol precision casting is not very large, and the precision requirements for it are not very high. However, the tin-bismuth aluminum frame can be regarded as a mold during use. This mold is relatively heavy, mainly because it contains bismuth. For complex silica sol precision casting molds, the manufacturing time is relatively short, which saves processing costs to a certain extent. For complex thin-walled castings, ventilation openings can be provided where possible to effectively enhance the air permeability of the product casing.