Mechanical machining process

During the precision machining process, the role of additives will no longer be limited to merely facilitating the rapid development of a wet strength in the investment casting shell; instead, they will also contribute to enhancing the quality of investment casting. Silica sol-based shells exhibit excellent surface quality and high-temperature performance. Precision machining boasts good resistance to deformation at high temperatures, making it suitable for products that demand relatively high precision. Both in practice and theory, it is essential to deepen our understanding of precision casting processes, continuously refine our technical approaches, and enrich our practical experience.

Fine machining is a process that produces high-quality, finely cast components. Such products have become widely used in industrial manufacturing. Fine machining boasts excellent stability; its products exhibit a broader pH compatibility range and can be stored stably for longer periods.

Fine mechanical machining imposes strict requirements on both the shell-making environment and wind speed. For castings with slender, elongated cavities, the interlayer drying time needs to be appropriately extended. The addition of high-polymer additives can further help reduce defects in both the mold shell and the casting. Fine mechanical machining requires less maintenance during storage, allowing it to better accommodate high-shear-stress mixing and further shorten the interlayer drying time. Under such conditions, the enhanced silica sol interlayer drying time can be reduced to as little as 1 hour.