Pump Body Sand Casting are mainly used for metal forming parts obtained by various casting methods. To a certain extent, the smelted liquid metal is mainly injected into the pre-prepared by pouring, injecting, inhaling or other casting methods. In the mold, after cooling, after falling sand, cleaning and post-treatment, the obtained object has a certain shape, size and performance.
Pump Body Sand Casting are cast alloys based on iron and carbon, the latter being predominantly in the form of flake graphite particles. The performance of gray iron depends on the form and distribution of the graphite, and the matrix structure. This standard classifies gray iron according to different mechanical properties, or tensile strength, or hardness.
Structural characteristics of Pump Body Sand Casting
1. To prevent the formation of coarse grains, thick sections and local metal accumulation should be avoided as much as possible. In the process, metal-type Pump Body Sand Casting and the like can also be used to refine the crystal grains.
2. In order to reduce the casting stress and prevent thermal cracking, the wall thickness should be as uniform as possible and the transition should be smooth. The nickel-chromium stainless steel valve body 1 has a gate 2 and a riser 3 to avoid the protruding portion of the casting shrinkage. From the standpoint of preventing oxide film and generating inclusions, it is also desirable to have a smooth transition without causing turbulence.www.pump-casting.com