SU1353564A1 - Tooling for hardening cores - Google Patents

Abstract

The invention can be used in the foundry industry in the manufacture of rods, cured by gaseous coolant. The purpose of the invention is to provide easy removal of the core from the core box. The goal is achieved as a result of incomplete curing of the rod in the box by making the collector wall adjacent to the Box cavity made of thermally conductive material, positioning channels dp for introducing a gaseous coolant in this wall along the perimeter of the box cavity and concentrating the vent holes in the central part of the bottom box core . The rigging consists of the collector 1 and the core box 2. The wall 3 of the collector 1 is made with channels 4 for the introduction of gaseous coolant into the box cavity. In the central part of the bottom of the crate 2, the ventilation holes 6 are made. 2 and exits through the vent holes 6, curing the mixture on its way. The mixture is then hardened by heat transfer through the wall 3 of the collector 1. The uncured core of the rod perceives thermal deformations and quenches the thermal stresses in the rod, which makes it easy to remove the rod from the box. 2 Il. c & (L with: with sd od sp p p ib

Description

113535642.

The invention relates to a casting collector 1, and cooling it, to production and can be used through channels A into the core and, in the manufacture of cores, solid along the side walls and due to cooling or heating. core box 2, goes into

5, the vent holes 6, while the upper layer of the core cures through the heat-conducting wall 3.

Thus, the rod is hardened outside on all sides, and in the middle of the center the mixture remains uncured, which perceives the deformations that occur during the curing of the surface layers of the rod, and relieves the thermal stresses

box 2. The wall 3 of the collector 1, preventing the extraction of the core from the box leading to the box cavity, is made of a box.

of heat-conducting material and supply The equipment operates in a similar way with channels 4 located in the curing of the rods with hot gas: the periphery part of the wall 3 of the collective tooling with a gaseous coolant.

The purpose of the invention is to facilitate the removal of the rod from the core box.

Figure 1 schematically shows the proposed tooling; figure 2 - section aa in figure 1.

The equipment for curing rods consists of a collector 1 and a rod

20

the hot gas supplied to the collector 1 heats the wall 3 and exits through the channels 4 through the rod, curing it from the sides and bottom, while the top of the rod hardens due to contact with the hot wall 3 of the collector 1.

20

25

the hot gas supplied to the collector 1 heats the wall 3 and exits through the channels 4 through the rod, curing it on the sides and bottom, while the top of the rod hardens due to contact with the hot wall 3 of the collector 1.

rmula from

p and e and

1 so that when assembled with a rod case 2, they are located along the perimeter of the cavity, as shown in Fig. 2.

Thermally conductive material of the wall 3 provides curing of the upper surface of the rod. The remaining walls of the collector 1 are made with thermal insulation 5. In the central part of the bottom of the core case 2 there are ventilation openings 6, and along the perimeter, the core case is provided with a sealing seal 7.

Tooling works as follows.

After packing the rod onto the core box 2, the collector 1 is superposed and pressed against the top. In this case, the channels 4 of the collector 1 are located along the perimeter of the box cavity. Inside the collector I serves liquefied gas, which, 40 holes are concentrated in the central

The curing equipment for the rods containing a manifold with channels for

30 of the supply of gaseous coolant and core pin with ventilation holes, characterized in that, in order to facilitate the extraction of the core from the core,

35, the collector wall adjacent to the cavity box is made of thermally conductive material, the channels in the wall are located along the perimeter of the cavity of the core box, and the vent

evaporate on wall surface 3

parts of the bottom of the core box,

Equipments work similarly during solidification of rods with hot gas:

20

25

the hot gas supplied to the collector 1 heats the wall 3 and exits through the channels 4 through the rod, curing it on the sides and bottom, while the top of the rod hardens due to contact with the hot wall 3 of the collector 1.

rmula from

p and e and

the holes are centered in the central

The curing equipment for the rods containing a manifold with channels for

supplying the gaseous coolant and core pin with ventilation holes, characterized in that, in order to facilitate the extraction of the core from the core,

the collector wall adjacent to the cavity box is made of heat-conducting material, the channels in the wall are located along the perimeter of the cavity of the core box, and the vent

parts of the bottom of the core box,

/ 4-xf

Perimeter / Cavity

% z.l VNIIPI Order 5655/12 Circulation 741 Subscription

Random polygons pr-tie, Uzhgorod, st. Project, 4

Claims (1)

Claim Accessories for curing the rods, comprising a collector with channels for supplying a gaseous coolant and a core box with ventilation holes, characterized in that, in order to facilitate removal of the core from the core box, the collector wall adjacent to the cavity of the box is made of heat-conducting material, channels in the wall located along the perimeter of the cavity of the core box, and the ventilation holes are concentrated in the Central part of the bottom of the core box. VINILI Order 5655/12 Circulation 741 Subscription Custom polygr. pr-tie, Uzhhorod, st. Project, 4