Machining process
In the manufacturing process of precision machining, the role of additives is no longer limited to helping the shell quickly establish wet strength; it will also improve the quality of investment casting. The surface quality of the silica sol shell is good at high temperatures. Precision machining has good high-temperature deformation resistance, and the process requires good precision of the product. In practice and theory, we should increase our understanding of precision casting technology, continuously supplement its technical attempts, and enrich its practical experience.
Precision machining is a production method for high-quality precision castings. Such products are widely used in industrial production. Precision machining has good stability, and its product value adapts to a wider pH range and has a longer shelf life.
Precision machining has strict requirements for the shell-making environment and wind speed. For castings with slender holes, the interlayer drying time needs to be appropriately extended. High-polymer additives can better help reduce defects in the shell and castings. The maintenance required during the storage of precision machining is less, which can adapt to high-shear stress stirring, and the interlayer drying time of the product is further shortened. However, they can shorten the interlayer drying time of this type of enhanced silica sol to 1 hour.
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