Anti-blocking breathable sliding plate structure for die casting

Abstract

In order to prevent molten steel from condensing and blocking a sliding plate channel in a die casting process, the utility model provides an anti-blocking breathable sliding plate structure for die casting, which mainly comprises a breathable upper sliding plate (1) and a lower sliding plate (2), and the breathable upper sliding plate (1) is provided with an annular breathable core (3). After the structure is adopted, in the transfer process of the steel ladle, argon can be continuously blown into the upper sliding plate ventilation core, the blown argon can play a role in stirring molten steel at the bottom, and the phenomenon that the molten steel in the bottom area is solidified due to rapid temperature reduction is prevented.

Description

Technical Field

[0001] The utility model relates to smelting equipment, in particular to an anti-blocking breathable slide plate structure for die casting. Background Art

[0002] In the die casting process, molten steel flows through a sliding nozzle system from a ladle and then enters an ingot mold in a vacuum chamber through a diversion tube. Different from the traditional continuous casting process, die casting adopts a discontinuous casting process. The casting ladle injects molten metal into the ingot mold at one time. After the casting of this ingot is completed, after closing the slide plate of the casting ladle, the ladle is moved to the next ingot mold, and then the slide plate is opened to continue casting. During the period when the slide plate of the ladle is closed, due to the too fast heat dissipation in the slide plate and the upper nozzle area, the molten steel in the upper slide plate and the inner area of the upper nozzle hole may cool and solidify, resulting in the blockage of the molten steel flow channel and unable to cast. Usually, in order to improve production efficiency, 8-15 ingot molds need to be cast in one casting period, which may lead to the inability to cast subsequent ingot molds due to the blockage of molten steel in the later stage of the casting process. To solve the above problems, a conical breathable brick is set on the lower slide plate. After the casting of the ingot mold is completed, the breathable brick of the lower slide plate is connected to the upper slide plate channel and argon is introduced to prevent the molten steel in the channel from cooling and blocking. However, this effect cannot well solve the problem of blockage, and this process takes a long time, so the blockage of the molten steel at the slide plate outlet still cannot be solved. Summary of the Invention

[0003] An anti-blocking breathable slide plate structure for die casting has the following structure: mainly composed of a breathable upper slide plate (1) and a lower slide plate (2). Among them, the breathable upper slide plate (1) is provided with an annular breathable core (3). The annular breathable core (3) is in a frustum of a cone structure. The center of the circular annular breathable core (3) coincides with the center of the molten steel flow channel of the breathable upper slide plate (1). An annular channel air groove (4) is arranged inside the annular breathable core (3). The annular channel air groove (4) has a concave trapezoidal cross-section. Around the bottom end surface of the annular channel air groove (4), 3-10 breathable grooves (5) are evenly arranged. The length of the breathable groove (5) is 5 mm - 100 mm, and the included angle between adjacent breathable grooves is 20° - 120°. A ventilation groove (6) is arranged on one side of the breathable upper slide plate (1). The ventilation groove (6) is connected to the annular channel air groove (4). An air pipe joint (7) is inserted into the annular channel air groove (4). The lower slide plate (2) is arranged parallel to the bottom surface of the breathable upper slide plate (1), and a wear-resistant working surface (8) is arranged on the surface of the lower slide plate (2).

[0004] After adopting this structure, during the transfer of the ladle, argon gas can be continuously blown into the upper slide plate ventilation core. The blown argon gas can stir the molten steel at the bottom, preventing the molten steel in the bottom area from solidifying due to rapid temperature drop. Compared with the design of using a lower slide plate ventilation brick, the utility model effectively solves the problem of blockage in the internal channels of the upper slide plate and the upper nozzle hole. After casting 12 ingot molds, no problem of slide plate blockage occurred. Brief Description of the Drawings

[0005] Figure 1 It is a schematic structural view of the ventilated upper slide plate, where 1 is the ventilated upper slide plate, 3 is the annular ventilation core, 4 is the annular channel air groove, 5 is the ventilation groove, 6 is the air vent groove, and 7 is the trachea joint.

[0006] Figure 2 It is an assembly drawing of an anti-blocking ventilated slide plate for die casting, where 1 is the ventilated upper slide plate, 2 is the lower slide plate, and 3 is the wear-resistant working surface. Detailed Description of the Invention

[0007] Embodiment

[0008] The structure of an anti-blocking ventilated slide plate for die casting is as follows: It mainly consists of a ventilated upper slide plate (1) and a lower slide plate (2). An annular ventilation core (3) is provided on the ventilated upper slide plate (1). The annular ventilation core (3) is in the shape of a frustum of a cone. The center of the circular annular ventilation core (3) coincides with the center of the molten steel flow channel of the ventilated upper slide plate (1). An annular channel air groove (4) is arranged inside the annular ventilation core (3). The annular channel air groove (4) has a concave trapezoidal cross-section. Three ventilation grooves (5) are evenly arranged around the bottom end surface of the annular channel air groove (4). The length of the ventilation groove (5) is 50 mm, and the included angle between adjacent ventilation grooves is 120°. An air vent groove (6) is arranged on one side of the ventilated upper slide plate (1). The air vent groove (6) is connected to the annular channel air groove (4). A trachea joint (7) is inserted into the annular channel air groove (4). A lower slide plate (2) is arranged parallel to the bottom surface of the ventilated upper slide plate (1), and a wear-resistant working surface (8) is arranged on the surface of the lower slide plate (2).

[0009] Embodiment

[0010] An anti-clogging breathable slide plate structure for die casting has the following structure: It mainly consists of a breathable upper slide plate (1) and a lower slide plate (2). Among them, the breathable upper slide plate (1) is provided with an annular breathable core (3). The annular breathable core (3) is in the shape of a frustum of a cone. The center of the circular annular breathable core (3) coincides with the center of the steel flow channel of the breathable upper slide plate (1). An annular channel gas groove (4) is arranged inside the annular breathable core (3). The annular channel gas groove (4) has a concave trapezoidal cross-section. Around the bottom end surface of the annular channel gas groove (4), 3 breathable grooves (5) are evenly arranged. The length of the breathable groove (5) is 40 mm, and the included angle between adjacent breathable grooves is 120°. A ventilation groove (6) is arranged on one side of the breathable upper slide plate (1). The ventilation groove (6) is connected to the annular channel gas groove (4). A tracheal joint (7) is inserted into the annular channel gas groove (4). The lower slide plate (2) is arranged parallel to the bottom surface of the breathable upper slide plate (1), and a wear-resistant working surface (8) is arranged on the surface of the lower slide plate (2).

[0011] Embodiment

[0012] An anti-clogging breathable slide plate structure for die casting has the following structure: It mainly consists of a breathable upper slide plate (1) and a lower slide plate (2). Among them, the breathable upper slide plate (1) is provided with an annular breathable core (3). The annular breathable core (3) is in the shape of a frustum of a cone. The center of the circular annular breathable core (3) coincides with the center of the steel flow channel of the breathable upper slide plate (1). An annular channel gas groove (4) is arranged inside the annular breathable core (3). The annular channel gas groove (4) has a concave trapezoidal cross-section. Around the bottom end surface of the annular channel gas groove (4), 6 breathable grooves (5) are evenly arranged. The length of the breathable groove (5) is 50 mm, and the included angle between adjacent breathable grooves is 60°. A ventilation groove (6) is arranged on one side of the breathable upper slide plate (1). The ventilation groove (6) is connected to the annular channel gas groove (4). A tracheal joint (7) is inserted into the annular channel gas groove (4). The lower slide plate (2) is arranged parallel to the bottom surface of the breathable upper slide plate (1), and a wear-resistant working surface (8) is arranged on the surface of the lower slide plate (2).

Claims

1. An anti-blocking breathable slide plate structure for die casting, characterized in that: It is mainly composed of a breathable upper slide plate (1) and a lower slide plate (2). Among them, a circular breathable core (3) is arranged on the breathable upper slide plate (1). The circular breathable core (3) is in the shape of a frustum of a cone. The center of the circular breathable core (3) coincides with the center of the steel flow channel of the breathable upper slide plate (1). An annular channel air groove (4) is arranged inside the annular breathable core (3). The annular channel air groove (4) has a concave trapezoidal cross-section. Around the bottom end surface of the annular channel air groove (4), 3 - 10 breathable grooves (5) are evenly arranged. The length of the breathable grooves (5) is 5 mm - 100 mm, and the included angle between adjacent breathable grooves is 20° - 120°. A ventilation groove (6) is arranged on one side of the breathable upper slide plate (1). The ventilation groove (6) is connected to the annular channel air groove (4). An air pipe joint (7) is inserted into the annular channel air groove (4). The lower slide plate (2) is arranged in parallel on the bottom surface of the breathable upper slide plate (1). A wear-resistant working surface (8) is arranged on the surface of the lower slide plate (2).

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