- The gating system (downsprues, runners, and ingates) serves
as the flow path for molten metal into the mold cavity.
- Proper design of the gating system is critical to provide for
uniform, controlled metal flow.
-- Non-uniform, long path, and/or slow metal
flow may produce unfilled sections or solidification shrinkage in the casting.
-- Excessively rapid metal flow or metal
splashing will cause turbulence and produce oxidation of the steel.
- The bearing plate is cast in a “2-on” pattern in
the flask.
Two gating systems for the
bearing plate are shown in the drawing to the right. |
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