Sprue base | definition of sprue base by Medical dictionary
sprue-former (redirected from sprue base)
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The base to which the sprue (2) is attached while the wax pattern is being invested in a refractory investment in a casting flask; it is sometimes referred to as a crucible-former.
Base to which sprue is attached while wax pattern is being invested in a refractory investment in a casting flask; sometimes called crucible-former.
Synonym(s): sprue base
References in periodicals archive
In the part's gating system, the filter is located vertically between the sprue base
and the runner.
The trend now is to inoculate by placing pellets or granulated inoculant in the pouring cup, in the sprue, in an enlarged chamber in the sprue base
or by a cored wire containing an inoculant that is fed continuously into the sprue during pouring.
This is the least desirable sprue design, but the use of a choke core at the bottom of the reverse tapered downsprue or the reduction of runner cross section next to the sprue base
can partially overcome this disadvantage.