Casting mold capable of reducing casting slag holes

Abstract

The utility model discloses a casting mould capable of reducing casting slag holes, the mould is provided with a pouring gate, a pouring gate and a casting cavity, the pouring gate is communicated with the casting cavity through the pouring gate, and the pouring gate comprises a vertical pouring gate, a transverse pouring gate and an inner pouring gate; the vertical pouring gate is vertically arranged, and the upper end of the vertical pouring gate is communicated with the pouring gate; the transverse pouring gate and the inner pouring gate are horizontally arranged, the front end of the transverse pouring gate is communicated with the vertical pouring gate, the part, lower than the transverse pouring gate, of the vertical pouring gate is a slag collecting groove, a first slag filtering groove is formed in the bottom surface of the transverse pouring gate, and a primary filter screen is embedded in the first slag filtering groove; the front end of the ingate is communicated with the rear end of the cross gate, the rear end of the ingate is communicated with the casting cavity, a second filter residue groove is formed in the bottom surface of the ingate, and a secondary filter screen is embedded in the second filter residue groove. Molten iron is more pure after being filtered twice, the casting slag hole defect is greatly reduced, the impact force of the molten iron is reduced, the molten iron flows gently, and the molding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a casting mould capable of reducing slag holes in castings. Background Art

[0002] In current casting, in order to avoid slag holes in castings, filters are often used to filter out the slag. However, sometimes the slag filtering effect is not very good, and a large number of slag holes still appear in the castings. Therefore, it is necessary to find a process solution to solve the slag holes in castings.

[0003] Publication number: CN116020975A, discloses a casting pouring cup and its casting method, including: a cup body, the cup body is a hollow inverted trapezoidal structure that is wide at the top and narrow at the bottom, and a filter is provided at the lower end of the cup body for connecting to a straight pouring gate. The principles of fluid mechanics and orthogonal decomposition of force are used to increase the liquid filling pressure in the cup body, thereby improving the residue filtering ability.

[0004] The utility model is different from the prior art in that the utility model solves the problem of poor residue filtering effect through runner design. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a casting mold that can reduce slag holes in castings.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A casting mold capable of reducing slag eyes in castings comprises a mold, the mold being provided with a gate, a runner, and a casting cavity, the gate being connected to the casting cavity through the runner, the runner comprising a vertical runner, a horizontal runner, and an ingrown runner; the vertical runner is vertically arranged, and the upper end of the vertical runner is connected to the gate; the horizontal runner is horizontally arranged, and the front end of the horizontal runner is connected to the vertical runner, and the part of the vertical runner lower than the horizontal runner is a slag collecting trough, the bottom surface of the horizontal runner is provided with a first slag trough, the horizontal runner is embedded with a primary filter screen in the first slag trough, and the primary filter screen divides the horizontal runner into two cavities; the ingrown runner is horizontally arranged, the front end of the ingrown runner is connected to the rear end of the horizontal runner, and the rear end of the ingrown runner is connected to the casting cavity, the bottom surface of the ingrown runner is provided with a second slag trough, and the ingrown runner is embedded with a secondary filter screen in the second slag trough, and the primary filter screen divides the ingrown runner into two cavities.

[0008] Furthermore, the cross-sectional area of the inner runner is smaller than the cross-sectional area of the runner.

[0009] Furthermore, the cross sections of the runner and the ingrown runner are in the shape of an inverted trapezoid.

[0010] Furthermore, the first filter residue trough and the second filter residue trough are conical troughs;

[0011] Specifically, the primary filter screen is arranged on the symmetry line of the first filter residue tank, and the secondary filter screen is arranged on the symmetry line of the second filter residue tank.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the utility model, the molten iron is more purified after being filtered twice, the slag eye defects of the casting are greatly reduced, the impact force of the molten iron is reduced, the molten iron flows smoothly, and the molding quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a casting mold capable of reducing slag holes in castings.

[0015] In the figure: 1. Vertical runner; 2. Primary filter; 3. Horizontal runner; 4. Secondary filter; 5. Ingate; 6. Casting cavity. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1 The utility model provides a casting mold capable of reducing slag eyes in castings, comprising a mold, wherein the mold is provided with a gate, a runner, and a casting cavity 6, and the gate is connected to the casting cavity 6 through the runner.

[0018] The runner includes a vertical runner 1, a horizontal runner 3, and an inner runner 5. The cross sections of the horizontal runner 3 and the inner runner 5 are in the shape of an inverted trapezoid.

[0019] The vertical runner 1 is vertically arranged, and the upper end of the vertical runner 1 is connected to the gate.

[0020] Among them, the horizontal runner 3 is arranged horizontally, the front end of the horizontal runner 3 is connected to the vertical runner 1, the part of the vertical runner 1 below the horizontal runner 3 is a slag collecting trough, and the bottom surface of the horizontal runner 3 is provided with a first filter residue trough, and the horizontal runner 3 is embedded with a primary filter screen 2 in the first filter residue trough, and the primary filter screen 2 divides the horizontal runner 3 into two front and rear cavities.

[0021] Among them, the ingrowth 5 is arranged horizontally, the front end of the ingrowth 5 is connected with the rear end of the runner 3, the cross-sectional area of the ingrowth 5 is smaller than the cross-sectional area of the runner 3, the rear end of the ingrowth 5 is connected with the casting cavity 6, and the bottom surface of the ingrowth 5 is provided with a second filter residue trough, and the ingrowth 5 is embedded with a secondary filter screen 4 in the second filter residue trough, and the primary filter screen 2 divides the ingrowth 5 into two cavities in front and back.

[0022] Specifically, the first filter residue trough and the second filter residue trough are conical troughs, the primary filter screen 2 is arranged on the symmetry line of the first filter residue trough, and the secondary filter screen 4 is arranged on the symmetry line of the second filter residue trough.

[0023] Specifically, the primary filter 2 and the secondary filter 4 are made of high-silica glass fiber, honeycomb ceramics, or foam ceramics.

[0024] When the utility model is in use, molten iron enters from the pouring gate, large slag directly sinks into the slag collecting trough, and small slag is brought into the horizontal runner 3 by the molten iron, and is filtered for the first time on the primary filter 2. Under the impact of the molten iron, a small part of the slag passes through the primary filter 2 and enters the inner runner 5 with the molten iron, and is filtered for the second time on the secondary filter 4. The molten iron is purer and then enters the casting cavity 6.

[0025] During the casting process, the direction change of the vertical runner 1 and the horizontal runner 3, the change in the diameter of the primary filter 2, the horizontal runner 3 and the inner runner 5, and the secondary filter 4 work together to reduce the impact force of the molten iron, make the molten iron flow smoothly, and improve the molding quality.

[0026] All components not discussed in detail in this application and the connection methods of the components in this application are well-known technologies in the technical field and can be directly applied without further explanation.

[0027] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0028] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0029] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A casting mold capable of reducing slag holes in castings, comprising a mold, wherein the mold is provided with a gate, a runner, and a casting cavity, wherein the gate is connected to the casting cavity through the runner, and wherein: The runner includes a vertical runner, a horizontal runner, and an inner runner; The vertical runner is arranged vertically, and the upper end of the vertical runner is connected to the gate; The horizontal runner is arranged horizontally, and the front end of the horizontal runner is connected to the vertical runner. The part of the vertical runner below the horizontal runner is a slag collecting trough. The bottom surface of the horizontal runner is provided with a first slag filtering trough. The horizontal runner is embedded with a primary filter screen in the first slag filtering trough. The primary filter screen divides the horizontal runner into two cavities. The ingrowth is arranged horizontally, the front end of the ingrowth is connected with the rear end of the cross runner, the rear end of the ingrowth is connected with the casting cavity, the bottom surface of the ingrowth is provided with a second filter residue trough, the ingrowth is embedded with a secondary filter screen in the second filter residue trough, and the primary filter screen divides the ingrowth into two cavities.

2. A casting mold capable of reducing slag holes in castings according to claim 1, characterized in that: The cross-sectional area of the inner runner is smaller than the cross-sectional area of the runner.

3. A casting mold capable of reducing slag holes in castings according to claim 1, characterized in that: The cross sections of the runner and the ingrown runner are in the shape of an inverted trapezoid.

4. A casting mold capable of reducing slag holes in castings according to claim 1, characterized in that: The first filter residue trough and the second filter residue trough are conical troughs; The primary filter screen is arranged on the symmetry line of the first filter residue tank, and the secondary filter screen is arranged on the symmetry line of the second filter residue tank.

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