Lost wax casting (Lost Wax Process), also known as hot wax casting, is an easy-to-operate casting process. It uses the characteristics of wax to melt the wax mold casting through heat, and then inject metal into it to form a casting process. Lost wax casting can also be used to make molds for metals such as ceramics, bronze and steel, and it is widely used in foundries The lost wax casting process is divided into the following steps: mold making, wax mold melting, metal pouring, casting molding and surface treatment. 1. Mold making The lost wax casting process requires making a wax mold first. There are many ways to make wax molds. Wax molds can be made by injection molding with wax or plastic, or by clay or wood. The wax molds made must be beautiful, regular in shape, and a special injection port must be reserved to smoothly complete the injection process. 2. Wax mold melting Wax mold melting is the key link in lost wax casting. In the casting process, wax mold melting is the key to casting the casting into metal, and its melting temperature is generally 140~160℃℃. 3. Metal pouring After the wax mold is melted, the metal can be poured into the wax mold. The metals to be poured include aluminum, copper, zinc, etc., which can be poured into the wax mold in a molten form. 4. Casting molding Casting molding refers to the process of cooling the metal after pouring it into the wax mold to achieve a certain shape, as well as the surface treatment of the casting. 5. Surface treatment The surface treatment of the casting is also a key step in the lost wax casting process. There are many ways to treat the surface, such as spraying with aluminum powder or spraying with paint to make the product look more beautiful.