The development of silica sol precision casting in China was relatively late, requiring high-precision processes in the production process. Silicon sol precision casting needs to strengthen the understanding of product technology in theory and practice, and continuously supplement its professional knowledge.
Silica sol precision casting enriches its practical experience, and in the process of use, the entire production process of precision casting will be corrected, and more powerful fine products will be discovered. During the filling process, the foam model needs to be liquefied and decomposed to produce a large number of small molecule gases and foam ash.
To a certain extent, these substances are harmful to humans, and operators must strictly follow the operating manual, whether it is actual operation or auxiliary or other protective items. All must be carried out according to the execution situation, and proficient operation steps are required during the production process.
In order to effectively improve the air permeability of some complex thin-walled castings in silica sol precision casting during use. If possible, exhaust holes can be installed at high places to properly set up the pouring system and prevent the pouring of gas coils.
In the process of silica sol precision casting, the pouring temperature can be appropriately increased. Try to shorten the distance from the ladle nozzle to the pouring cup as much as possible, effectively reducing the pouring speed and allowing the liquid metal to be filled smoothly.
The calcination of silica sol precision casting shells should be sufficient, and there should be a sufficiently high temperature during use to ensure that the baking of precision casting shells is transparent. Completely eliminate the gas material of the product, and the complete baked shell should be white or light gray with no black spots.
