Centrifugal casting is a technique and method of injecting liquid metal into a high-speed rotating mold, causing the metal liquid to move centrifugally and fill the mold, forming castings. Due to centrifugal motion, liquid metal can fill the mold well in the radial direction and form the free surface of the casting; A cylindrical inner hole can be obtained without using a core; Helps to eliminate gases and inclusions in liquid metals; Affects the crystallization process of metals, thereby improving the mechanical and physical properties of castings.

Centrifugal casting is a technique and method of injecting liquid metal into a high-speed rotating mold, causing the liquid metal to move centrifugally and fill the mold, forming castings. Due to centrifugal motion, liquid metal can fill the mold well in the radial direction and form the free surface of the casting; A cylindrical inner hole can be obtained without using a core; Helps to eliminate gases and inclusions in liquid metals; Affects the crystallization process of metals, thereby improving the mechanical and physical properties of castings.

Sand casting refers to the casting method of producing castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting methods. Due to the low cost and easy availability of molding materials used in sand casting, as well as the simplicity of mold manufacturing, it can adapt to single piece production, batch production, and mass production of castings. For a long time, it has been a basic process in casting production.

Gravity casting refers to the process of injecting molten metal into a mold under the influence of Earth's gravity, also known as gravity casting. Generalized gravity casting includes sand casting, metal casting, investment casting, lost foam casting, mud casting, etc; Narrow gravity casting mainly refers to metal mold casting.