A sand mold used for casting a cast product is formed by packing the sand mixture (sand mixed with resin and hardener). It is hardened over time.
The hardened sand mold is removed from the pattern.
Clamping
Protective coating
The upper and lower mold halves are securely clamped together to form a mold cavity (ready for pouring).
A protective coating is applied on the surface of the sand mold to protect against molten metal.
Feeding material
Melting metal in electric furnace
The calculated quantity of material is fed to the electric furnace.
A control panel is used to control power input to the furnace to ensure optimum melting performance.
Controlling the content of molten metal
A CE meter is used for molten metal analysis. The content of molten metal is controlled within a specified range by adding the alloying element.
Tapping
Pouring
The molten metal is tapped from the furnace into the ladle.
The molten metal is poured into a mold made of packed sand.
Shot blasting
Trimming
Shot blasting removes scale and sand from the surface of castings after shakeout. The castings in the shot blasting machine are blast cleaned with a large amount of shot media.
The cleaned product is trimmed and finished by grinding all excess metal such as burrs, runners, feeder-heads and overflows.
Inspection
Painting
The product is painted in the specified color. Careful finishing provides a very smooth surface.
