Device name：The casting industry
Casting industry, folk craft industry, casting a lot of types, according to the modeling method is customarily divided into:
Ordinary sand mold casting, including wet sand mold, dry sand mold and chemical hardened sand mold 3 categories.
(2) special casting, press molding materials and can be divided into natural mineral sand as the main special casting molding materials (e.g., investment casting, mold casting, shell mold casting foundry, negative pressure casting, mold casting, ceramic mold casting, etc.) and metal as the main mold material of special casting (such as metal mold casting, pressure casting, continuous casting, low pressure casting, centrifugal casting, etc.).
The casting process usually includes:
(1) the preparation of casting (the container for liquid metal to become solid casting), the casting can be divided into sand, metal, ceramic, mud, graphite, etc. According to the materials used, it can be divided into one-time type, half type and type according to the frequency of use, the quality of casting preparation is the main factor affecting the quality of casting;
(2) the melting and pouring of casting metal, casting metal (casting alloy) mainly has cast iron, cast steel and cast non-ferrous alloy;
(3) casting treatment and inspection, casting treatment includes the removal of mold core and casting surface foreign bodies, the removal of pouring riser, spading burr and dryness and other protrusions, as well as heat treatment, plastic, anti-rust treatment and rough machining