core wash

core wash

[′kȯr ‚wäsh]
(materials)
A suspension of fine clay or graphite that is applied to a core in a metal casting to improve that portion's cast surface.
References in periodicals archive ?
A company in Milwaukee needed to dry a zircon-based core wash on sand molds used in the manufacture of large gears.
Simple to use, it can be added during the core wash and pulp wash processes to retain cloudiness.
facility, incorporates a large 1900 x 900 mm core box on a vertically parted core machine, a key-core machine, a core dipping station and a core wash drying oven.
Eck Industries eliminated the core wash, or coating, from the water jacket cores, and the defects stopped appearing.
Wescast worked with Robotec Engineering GmbH, Bad Sackingen, Germany, to integrate the core-setting automation, which begins at the core wash drying oven.
After an extensive evaluation, Gienanth focused on two core handling operations--clipping into the core wash and palletizing finished cores--for its initial automation efforts.
Q: Our foundry uses core wash coatings for cores and molds but we are experiencing inconsistent casting finish.
The cores begin to degrade as moisture accumulates on or is absorbed into the core or core wash coating.
improved core wash resistance-- dipped core strength is higher than 1 min out-of-box core strength;
A water-based graphite core wash is used on 5% of Benton's jobs--only those that require special attention.