The advantage of investment casting is that it has high dimensional and positional accuracy, as well as low surface roughness. In many cases, the castings obtained by this method only require grinding and polishing allowances, eliminating the need for mechanical processing. Even if processed, only a small amount of machining allowance is needed. From this, it can be seen that the use of investment casting technology in silica sol precision casting can greatly save machine tool processing equipment and human resources, reduce product surplus, and significantly save metal raw materials.

Spray rust removal is achieved by using compressed air separated from oil and water to spray abrasive at high speed from the nozzle. The pressure of the compressed air is generally shielded at 4-0.6MPa. Precision casting utilizes high-speed friction with pressure to generate friction and impact when in contact with alloy cast steel components, removing oxide scale and rust.

Spray rust removal and silica sol precision casting use high-speed rotating granulator impeller blades to rotate the impeller blades of the high-speed rotating granulator. The abrasive scatters onto the surface of the steel casting, flying at high speed, impacting and friction the surface of the alloy steel casting, thereby removing corrosion and oxide scale on the surface of the precision casting.

The implementation of computer integrated manufacturing system in silica sol precision casting utilizes data generated from various links of computer network and database integration, and comprehensively applies modern management technology, manufacturing technology, information technology, and system engineering technology to organically integrate personnel, technology, equipment, business management elements, information flow, and material flow throughout the casting production process, achieving overall optimization of the casting industry and solving a series of problems faced by participating in competition.