SU63691A1 - Gating device - Google Patents

Description

It is known that a high rate of penetration of metal into the mold during pouring causes many unpleasantnesses. The metal molds the mold, resulting in earth shells in the casting. The metal puts in the form of slag, dyuk1iy slag inclusions. Finally, the pressure of the metal spreads the mold, and the casting is more projected, which is associated with significant metal losses.

The gating device of the present invention allows to eliminate all the above-mentioned defects due to the retarding effect on the flowing metal, and, as a result, the slowed-down speed of filling the form. This is achieved by the fact that the gating unit is given a knee-like or zigzag shape.

FIG. 1 of the drawing shows a knee-shaped gating device in which the metal is braked, mainly in the vertical plane; FIG. 2 is a plan view of this device; in FIG. 3 - gating device with braking

metal, mainly in the horizontal plane; in FIG. 4 is a view of the gate device of FIG. 3 in plan, in FIG. 5 is a diagram of the casting of parts with the proposed gating device in a side view; FIG.

6 is the same in plan view, in FIG.

Figure 7 shows a zigzag stool. The casting device is molded using resistance element models that are inserted into the upper and lower flask. The metal (fig. 1, 2, 3, 4) from the stack A is guided successively to move I, then to move II, and finally, to move 111, from where it is fed to the parts to be cast by feed IV.

In the form shown in FIG. 5, 6, the metal from the stack A goes successively to moves 1, 2, 3, 4, 5 and, according to the feedstock 6, to parts.

The zigzag one hundred to by FIG. 7 serves for braking a metal in case of its vertical fall i is intended for casting high parts.

The proposed gating ycTpoiiism makes it possible: 1) to regulate the flow rates of the liquid metal at the time of pouring, without exposing the metal to strong cooling