Die casting method, also known as die casting method, first uses clay mold to carve out various patterns and inscriptions, then dries them in the shade and fires them to make the master mold. Then the master mold is used to make a clay mold, and the clay mold is also dried in the shade to make a ceramic mold, and the alloy is melted, and then the alloy is poured into the cavity of the ceramic mold to make a bronze finished product.
[1] Lost wax method is a precision casting method for bronze and other metal objects. The method is to use beeswax as the model of the casting, and then fill the mud core with other refractory materials and smear it on the outside. After heating and baking, the wax model completely melts and falls off, making the whole casting model an empty shell. Then pour the solution into it, and it will be cast into an object. Objects can be beautifully carved and have a hollow effect. The bronze statue and copper plate unearthed from the tomb of Zeng Houyi in Sui County, Hubei Province are the earliest known lost wax castings in China.