SU893399A1 - Apparatus for casting by dipping - Google Patents

Description

one

The invention relates to foundry, specifically to the design of devices for casting by immersion, and can be used in the manufacture of small castings from colored mainly fusible alloys.

A device for pouring by immersion is known, comprising a lower mold, an upper mold with a shaping cavity, a feeder, pushers and a protective cover fl.

A disadvantage of the known device is poor quality casting. ,

The purpose of the invention is to improve the quality of castings.

The goal is achieved by the fact that in a known device for pouring by immersion, comprising a lower mold, an upper mold with a forming cavity, a feeder, pushers and a protective casing, the feeder is made ringed, the pushers are hollow, and the pushers are mounted above the forming cavity, which is open to the top, and the ratio of the area of the feeder to the area of the outlet of the form 0.5-0.8.

The drawing shows the proposed device.

The device consists of a bottom half-form 1, an attached half-casing 2 attached to it, having a cavity 3 at the bottom with holes 4 in the walls of the casing for blowing away oxide oxide film from the melt mirror and donkey inclusions when the device is immersed in metal, the upper half-form 5 with protective half-jacked covering

10 half-form side and top. Forming the open at the top of the cavity 7 are located in the upper fixed half-form. In order to melt the mold, there are metal pipes 8,

15 uncovered in the casing. The bottom mold is attached to the piston rod 9 of the cylinder. (Not shown), the upper half-mold is attached to the frame 10. Thin-walled hollow walls are installed above the mold holes.

20 pushers 11 with holes 12 in the walls for air outlet, fixed on flange 13 of the stem. They are installed above the form at a level that provides the necessary cross section of the annular feeder. The device is attached to the power cylinder 14.

The device works as follows.

When the device is immersed in the melt, the air in the cavity 3

Claims (1)

Claim A dip casting device containing a lower mold, an upper mold with a forming cavity, a feeder, pushers and a protective casing, 15 characterized in that, in order to improve the quality of the castings, the feeder is made ringed, the pushers are hollow, and the pushers are installed above the forming cavity , made open at the top, and the ratio of the feeder area to the area of the inlet of the form is 0.5-0.8.