SU872021A1 - Chill mould with vertical connection plane for casting by dipping - Google Patents

Description

The invention relates to foundry, more specifically to the design of the mold, and can be used in the manufacture of castings from colored, mainly light, alloy castings. The known metal mold with a vertical plane of the Dip Pour connector, which includes half-molds, mechanisms for pushing out molds from the mold, and bottom feeders. The disadvantage of this form is its limited capabilities. The purpose of the invention is to expand the technological capabilities of the form. The goal is achieved by the fact that the form, including molds, the mechanism for ejecting the casting from the molds and these feeders, is equipped with a protective can, which are attached to the molds, in the vertical plane, with the help of shoulders made according to the shape of the connector and covering the consumers. Figure 1 shows the form, vertical section; figure 2 - section AA in figure 1; on fig.Z - section BB. On figure 1 on figure 4 - section bb In figure 2. The form contains half-bodies 1, a casing 2 consisting of parts, shoulder 3, side feeders 4 and bottom feeders 5, devices for pushing castings out of the mold, which include levers b, pusher plates 7, pushers 8 and counter pushers 9. In FIG. .1 also shows the brackets 10 of the forg connector mechanism, the melt 11 in which the mold is immersed, and the sand core 12, which forms the internal cavity of the casting. The form works as follows. When the form is opened, a sand core 12 (if required) is installed in one of the half-molds 1. The half-molds 1 by a closing mechanism (not shown) / are closed with the help of brackets 10. At the same time, the counter thrusters 9, abutted against the opposite half-form, through the pushing plates 7 return from the pushers 8 to the initial position. Further, the mold is immersed in the melt 11 to a depth of several; above the height of the casting, and kept in a stationary position until the casting is fully solidified. Casing 2, consisting of parts, but in a closed position, representing the bowl.

Prevents the mold halves and ejection mechanism from direct contact with the melt.

After the casting hardens, the mold rises and opens up the hinge 10. To facilitate undermining the NSJ and ensure that the casting is removed from the half-form (at the time of the undermining), one of the levers 6 moves in a special mechanism, which moves the pushers through the pusher plate. The casting remains in the second half-form and moves in it in the removal zones, where the lever 6 of this half-form presses the pushing plate 7 and the pushers push the casting. Then the cycle repeats.

The protective cover protects the form from overheating. If necessary (in the case of mass castings), the mold can be forcibly cooled using the brackets 10, if water cooling is embedded in them and their flat contact is ensured along the upper plane of the half-molds.

The technical and economic efficiency of the application of the proposed form consists in expanding the range of dip castings, in improving their quality, reducing cast rejects as compared to traditional casting in a chill mold, in reducing the consumption of metal by eliminating the gating system.

The casting process using the proposed mold can easily be mechanized and automated, since it eliminates the need for dosing the liquid metal when filling the mold. The scope of the invention is the production of complex high-quality castings, predominantly of aluminum alloys.

invention formula

A metal mold with a vertical plane of a dip-casting connector, comprising half-molds, pushing mechanisms for casting out of half-molds and bottom feeders, characterized in that, in order to expand technological capabilities, it is provided with a protective cover detachable in a vertical plane, the component parts of which are attached to half-molds with piping flanges made along the contour of the form connector and covering the feeders.

Sources of information taken into account in the examination

1. USSR author's certificate in application 2858087/02, cl. at 22 O 23/04, 1979.

Claims (1)

Claim A metal mold with a vertical plane of the socket for immersion casting, including half-molds, mechanisms for pushing the casting out of semi-molds and bottom feeders, characterized in that, with the aim of expanding the technological options 20, it is equipped with a protective cover detachable in the vertical plane, the components of which are connected to half-molds using collars made along the contour of the mold connector and covering the feeders.