1. There are many technological methods to make metal materials into required products, such as casting, forging, extrusion, rolling, drawing, stamping, cutting and powder metallurgy. Among them, casting is the most basic and commonly used process.
2. The molten metal is poured into a hollow mold made of high-temperature resistant materials, and the product with the expected shape is obtained after condensation, which is casting. The final product is a casting.
3. Casting can be divided into ferrous metal casting (including cast iron and cast steel) and nonferrous metal casting (including aluminum alloy, copper alloy, zinc alloy and magnesium alloy) according to casting materials. Precision foundry specializes in non-ferrous metal casting, focusing on aluminum alloy and zinc alloy casting.
4. Casting materials can be divided into sand casting and metal mold casting. Precision foundry is familiar with these two casting processes and designs and manufactures these two casting molds by itself.
5. According to the pouring process of molten metal, casting can also be divided into gravity casting and pressure casting. Gravity casting refers to the process that molten metal is injected into the mold under the gravity of the earth, also known as casting. Generalized gravity casting includes sand casting, metal casting, investment casting, lost foam casting, clay casting and so on. Gravity casting in a narrow sense refers to metal mold casting. Die casting refers to the process that molten metal is injected into the mold under the action of other external forces (excluding gravity). Pressure casting in a broad sense includes pressure casting, vacuum casting, low pressure casting and centrifugal casting of die casting machine. In a narrow sense, die casting refers to the die casting machine of metal die casting, referred to as die casting. Precision foundry has long been engaged in gravity casting of sand mold and metal mold. These casting processes are the most commonly used and the lowest relative prices in nonferrous metal casting.