Lost Foam Casting
Lost foam casting (solid mold casting) is a new and widely used precision casting process. Its process is as follows: use paraffin or foam to make a model according to the size and shape of the casting and bond and combine it into a model cluster; after the surface of the casting cluster is brushed with refractory paint and dried, the model is buried in dry quartz sand and vibrated Modeling; complete pouring in a negative pressure situation, high temperature vaporizes the model, and the liquid metal occupies the position of the model; after cooling and solidification, get castings. Lost Foam Casting is a new technology with nearly no allowance and precise forming. It does not need to close the box to take the mold. It uses dry sand molding without a binder, which reduces pollution. It is known as the most likely process technology to achieve green casting in the 21st century.