SU1680440A1 - Casting die for manufacturing reinforced castings - Google Patents

Abstract

The invention relates to foundry, in particular, to the design of foundry molds, and 8 7 3 can be used to produce reinforced castings. The purpose of the invention is the expansion of technological capabilities and the production of castings without end fittings waste. The casting mold contains a pallet-cooler 1, side sand rods 2 with ledges, forming a working cavity 3 and a sprue system 4 with brown feeders 5, vertical reinforcing inserts 7 in the form of rods and a metal plate-holder 8 with openings 9 and a lifting bracket 10 Plate-holder 8 is mounted on the ledges of the side rods 2 in the upper part of the cavity 3 with the possibility of vertical movement, the reinforcing inserts 7 lower ends are located on the tray-cooler 1, and their upper ends are placed with a gap in the holes 9 pl ity-clips 8. 1 Il. (Ls

Description

The invention relates to foundry, in particular to the construction of foundry molds, and can be used to produce reinforced castings,

The purpose of the invention is the expansion of technological capabilities and the production of castings without end waste of reinforcement,

The drawing shows a diagram of a mold.

The casting mold contains a refrigerator-cooler 1, side sand rods 2 with ledges, forming a working cavity 3 and a gating system 4 with brown feeders 5, a gating funnel 6 for pouring matrix liquid metal, vertical reinforcing inserts 7 in the form of rods and a metal plate-holder 8 with holes 9 for accommodating the upper ends of the reinforcing inserts and the load gripping bracket 10,

Plate-holder 8 is installed on the ledges of the side rods 2 in the upper part of the working cavity 3 with the possibility of vertical movement. Reinforcing inserts 7 lower ends are located on the refrigerator tray 1, and their upper ends are placed with a gap in the holes 9 of the plate-holder 8.

Foundry form works as follows.

The mold is assembled from a metal refrigerator 1 and side sand cores 2 in the form of a vertical stack, forming a working cavity 3 and a sprue system 4 with brown feeders 5. Then, a plate-holder 8 s are installed on the ledges of the side rods 2 in the upper part of the working cavity the possibility of vertical movement of the cargo bracket 10, Next, in each hole 9 of the plate-holder, reinforcing inserts 7 are inserted from above onto the tray-cooler 1. The gating funnel b is installed and the mold is poured into it Great matrix alloy. Due to the clear location of the feeders 5 and the cooling effect of the refrigerator tray 1, during the casting process, the matrix alloy is directed upwards from bottom to top. As a result of this process, after some time

the lower ends of the reinforcement inserts 7 are rigidly fixed in the solid matrix alloy. At this time, without stopping pouring, the plate-holder 8 manually or using a lifting mechanism (not shown) for the load gripping bracket 10 is gradually moved upward at a speed equal to or slightly greater than the speed of raising the level of the liquid metal in the working cavity 3 of the form until complete filling the working cavity with liquid metal up to the upper ends of the reinforcing inserts. At the same time, the gases formed during the pouring process freely exit the mold cavity through the gaps between the inserts 7 and the walls of the openings 9,

After complete solidification and cooling of the obtained reinforced casting, the latter is removed from the mold, separated

sprues and pass to machining.

Then the cycle repeats. The proposed design allows to expand its technological capabilities and to carry out the casting of reinforced blanks without end fittings waste.

Claims (1)

Formula of the invention Casting mold for producing reinforced castings, comprising a cooling pan, lateral sand cores forming a working cavity and a gating system, vertical reinforcing inserts in the form of cores and a plate-holder with holes for fixing reinforcing inserts in the working cavity, characterized in that, in order to expand technological capabilities and to obtain castings without end fitting waste, the plate-holder is equipped with a lifting bracket, the side rods are made with mouth, the plate-holder is mounted on the ledges of the side rods in the upper part of the working cavity with the possibility of vertical movement, the reinforcement inserts are located at the lower ends on the refrigerator tray, and their upper ends placed with a gap in the holes of the plate-holder.