Slag stopping pouring system for lost foam casting

Abstract

The utility model discloses a slag stopping pouring system for lost foam casting, which belongs to the technical field of lost foam casting and full mold casting, and comprises a slag collecting ladle, the interior of the slag collecting ladle is hollow, one side of the slag collecting ladle is communicated with a transverse pouring gate, the other side of the slag collecting ladle is communicated with an inner pouring gate, the transverse pouring gate is higher than the inner pouring gate, and the upper end of the transverse pouring gate and the upper end of the inner pouring gate are respectively provided with an upward zigzag cavity. The slag stopping device has the advantage that a good slag stopping effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam casting, in particular to a slag blocking pouring system for lost foam casting. Background Art

[0002] During the smelting process of molten iron, since the added scrap steel and scrap iron contain impurities, low-purity minerals are added as needed during the smelting process, slag-forming agents are used for slag formation and heat preservation, and insulation agents are used in the ladle for heat preservation after smelting. These will cause some slag to flow into the casting along with the molten iron during the pouring process, resulting in surface defects of the casting, which require manual repair, wasting a lot of manpower and material resources, and in severe cases will cause the casting to be scrapped, resulting in huge economic losses. Summary of the invention

[0003] The utility model aims to solve the technical problems mentioned in the above background technology, and provides a slag blocking pouring system for lost foam casting. It is designed based on the process characteristics that lost foam casting does not require parting and the model does not need to be taken out, combined with the flow characteristics of molten iron. This slag blocking pouring system can achieve a good slag blocking effect.

[0004] According to the content of the utility model, the technical solution provided by the utility model is: a slag retaining pouring system for lost foam casting, including a slag collecting bag, the interior of the slag collecting bag is hollow, one side of the slag collecting bag is connected to a cross runner, and the other side is connected to an ingrowth. The height of the cross runner is higher than the ingrowth, and the upper ends of the cross runner and the ingrowth are provided with upward serrated cavities.

[0005] In some embodiments, the sawtooth direction of the sawtooth-shaped cavity is inclined to the flow direction of the runner.

[0006] In some embodiments, the slag bag is in the shape of a vertical cylinder with a hemispherical upper end.

[0007] In some embodiments, the cross-sectional area of ​​the ingate is smaller than the cross-sectional area of ​​the runner.

[0008] In some embodiments, the runner and the ingates extend horizontally and along a tangent direction of the side surface of the slag collecting bag.

[0009] Compared with the prior art, the advantages of the utility model are: 1. The ingrowth and the cross runner are serrated. After the molten iron flows in, a cavity is formed at the serrated part, so that the slag forms a vortex therein, which plays a slag collecting role; 2. The cross-sectional area of ​​the ingrowth is smaller than that of the cross runner, which can ensure that the slag collecting bag is filled with molten iron. During the flow of molten iron, the slag forms a vortex in the slag collecting bag and rotates and floats up, so that the slag in the molten iron is concentrated on the upper side of the slag collecting bag; 3. The height of the cross runner is higher than that of the ingrowth, which prevents the slag from flowing into the ingrowth with the molten iron during the process of rotating and floating in the slag collecting bag.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of a slag blocking pouring system for lost foam casting according to an embodiment of the utility model;

[0012] Figure 2 for Figure 1 An enlarged schematic diagram of part I is shown in FIG.

[0013] In the attached drawings: 1. inner runner; 2. slag collecting bag; 3. horizontal runner; 100. slag blocking pouring system for lost foam casting. DETAILED DESCRIPTION

[0014] The utility model is described in further detail below.

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0016] Combination Figure 1 As shown, a slag blocking pouring system 100 for lost foam casting includes a slag collecting bag 2 with a hollow interior. The slag collecting bag 2 is in a vertical cylindrical shape with a hemispherical upper end.

[0017] One side of the slag collecting bag 2 is connected to a cross runner 3, and the other side is connected to an ingrate 1. The cross runner 3 is higher than the ingrate 1. The extension directions of the cross runner 3 and the ingrate 1 are horizontal, and along the tangent direction of the side of the slag collecting bag 2, the cross runner 3 and the ingrate 1 are connected to the two sides of the slag collecting bag 2 in a vertically symmetrical manner.

[0018] The upper ends of the runner 3 and the ingrate 1 are both provided with upward serrated cavities, the serration direction of which is inclined to the flow direction of the runner, and the cross-sectional area of ​​the ingrate 1 is smaller than that of the runner 3 .

[0019] Combination Figure 1 , Figure 2 As shown, the working process of the device is as follows: since the density of slag in molten iron is less than that of molten iron, during the pouring of molten iron, the slag flows from the cross runner 3 through the slag collecting bag 2 into the ingrowing 1, and the slag is on the upper side. As the molten iron flows, the slag enters the serrated cavity of the ingrowing 1 and the cross runner 3, and forms a vortex in the serrated cavity. The serrated cavity of the ingrowing 1 and the cross runner 3 can play a slag collecting role.

[0020] The cross-sectional area of ​​the ingrate 1 is smaller than that of the runner 3 , which can ensure that the slag ladle 2 is filled with molten iron. As the molten iron flows and impacts, the molten iron forms a vortex in the slag ladle 2 , causing the slag to rotate and float up and gather on the upper part of the slag ladle 2 .

[0021] With the slag blocking and collecting together by the ingrate 1, the slag collecting bag 2 and the cross runner 3, almost all the slag in the molten iron can be filtered out.

[0022] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A slag blocking pouring system (100) for lost foam casting, characterized in that: The slag collecting bag (2) comprises a slag collecting bag (2) which is hollow inside, one side of which is connected to a cross runner (3) and the other side of which is connected to an ingrate (1), the cross runner (3) being higher than the ingrate (1), and the upper ends of the cross runner (3) and the ingrate (1) are both provided with an upward sawtooth-shaped cavity.

2. The slag blocking pouring system (100) for lost foam casting according to claim 1, characterized in that: The sawtooth direction of the sawtooth cavity is inclined to the flow direction of the runner.

3. The slag blocking pouring system (100) for lost foam casting according to claim 1, characterized in that: The slag collecting bag (2) is in the shape of a vertical cylinder, and the upper end is a hemispherical surface.

4. The slag blocking pouring system (100) for lost foam casting according to claim 1, characterized in that: The cross-sectional area of ​​the ingrate (1) is smaller than the cross-sectional area of ​​the runner (3).

5. The slag blocking pouring system (100) for lost foam casting according to claim 1, characterized in that: The extending directions of the cross runner (3) and the inner runner (1) are horizontal and follow the tangent direction of the side surface of the slag collecting bag (2).

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