sprue-former

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sprue-for·mer

(sprū-fōr'mĕr),
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.

sprue-for·mer

(sprū-fōr'mĕr)
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.