Base

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BASE. Something low; inferior. This word is frequently used in composition; as base court, base estate, base fee, &c.

References in periodicals archive ?

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.

Melting materials

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.

Good sprue design eliminates gas, oxide entrainment

The cross-sectional area of ingates is typically 2-4 times greater than the sprue base. This enlargement makes the nonpressurized system very useful in reducing the reoxidation of sensitive alloys entering the mold.