Water nozzle for alloy casting

Abstract

The utility model provides a nozzle for alloy casting, the nozzle is installed on a nozzle mechanism, the nozzle mechanism is provided with an upper nozzle, the nozzle comprises a sliding nozzle and a lower nozzle, the sliding nozzle is located between the upper nozzle and the lower nozzle, the sliding nozzle and the lower nozzle are both provided with tapping holes, and the tapping holes are communicated with the upper nozzle and the lower nozzle. And the steel tapping hole of the sliding nozzle can be aligned with or staggered from the steel tapping hole of the lower nozzle. According to the nozzle, the sliding nozzle and the lower nozzle of which the hole diameters of the tapping holes are 60mm are used, and when an ultra-low-carbon high-temperature alloy variety is cast, after the nozzle is not automatically opened for oxygen drainage, the steel flow is larger, the steel flow is easier to circulate, and the casting is easy to succeed.

Description

Technical Field

[0001] The utility model relates to the field of high-temperature alloy casting, in particular to a water nozzle for alloy casting. Background Art

[0002] At present, the diameter of the slide plate and the tapping hole of the water nozzle used for high-temperature alloy casting is 45mm, which is too small and has defects and deficiencies for casting ultra-low carbon high-temperature alloy varieties. Due to the existence of VOD process, the refining process temperature is high and the refining time is long. The ladle drainage sand sintered during the refining process, and it often does not open automatically when pouring, and oxygen drainage is required. However, the diameter of the ladle water nozzle is too small. After oxygen drainage, the steel flow is very small and cannot be circular, making casting difficult and requiring return heating.

[0003] When ordinary steel is smelted in the converter, the aperture of the ladle slide nozzle is generally large. By replicating and transplanting the large-aperture ladle slide nozzle technology of the converter, the ladle also uses a large-aperture slide nozzle when smelting high-temperature alloys in the electric furnace to solve the problem of difficulty in casting after drainage of the ladle nozzle when casting high-temperature alloys. Utility Model Content

[0004] The utility model aims to provide a water nozzle for alloy casting. When casting ultra-low carbon high-temperature alloy varieties, the steel flow of the water nozzle is larger, the steel flow is more likely to flow in a circular shape, and the casting is easy to succeed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water nozzle for alloy casting, the water nozzle is installed on a water nozzle mechanism, the water nozzle mechanism has an upper water nozzle, the water nozzle includes a sliding water nozzle and a lower water nozzle, wherein the sliding water nozzle is located between the upper water nozzle and the lower water nozzle, the sliding water nozzle and the lower water nozzle both have a steel tapping hole, and the steel tapping hole of the sliding water nozzle can be aligned with or staggered with the steel tapping hole of the lower water nozzle.

[0007] Furthermore, in the above-mentioned alloy casting water nozzle, the sliding water nozzle has three slide plates, which are an upper slide plate, a middle slide plate and a lower slide plate, and the middle slide plate is located between the upper slide plate and the lower slide plate.

[0008] Furthermore, in the above-mentioned alloy casting water nozzle, the upper and lower surfaces of the middle slide plate are both planes, and the diameter of the cross section of the steel outlet hole of the middle slide plate is 60 mm.

[0009] Furthermore, in the above-mentioned alloy casting water nozzle, the diameter of the cross section of the steel outlet hole of the water nozzle is 60 mm.

[0010] Furthermore, the above-mentioned alloy casting water nozzle also includes an oil cylinder, which is connected to the sliding water nozzle and can move the sliding water nozzle.

[0011] Furthermore, in the above-mentioned alloy casting water inlet, the middle slide is connected to both the upper slide and the lower slide, the oil cylinder is connected to the middle slide, and the oil cylinder can move the middle slide. The movement of the middle slide can align or stagger the steel outlet hole of the middle slide with the steel outlet hole of the lower water outlet.

[0012] Analysis shows that the utility model discloses a water nozzle for alloy casting, which uses a sliding nozzle and a down nozzle with a steel outlet hole diameter of 60 mm. When casting ultra-low carbon high-temperature alloy varieties, the water nozzle does not automatically open to drain oxygen, the steel flow is larger, the steel flow is easier to flow in a circular shape, and casting is easy to succeed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model when the steel tapping hole of the middle slide plate and the steel tapping hole of the upper water inlet are staggered.

[0015] Figure 2 It is a structural schematic diagram of an embodiment of the utility model when the steel outlet hole of the middle slide plate is aligned with the steel outlet hole of the upper water inlet.

[0016] Figure 3 It is a structural schematic diagram of a nozzle mechanism according to an embodiment of the utility model.

[0017] Figure 4 The figure is a schematic structural diagram of a sliding water gate according to an embodiment of the utility model.

[0018] Figure 5 The utility model is a schematic structural diagram of a drain outlet according to an embodiment of the present invention.

[0019] Explanation of reference numerals: 1 upper water inlet; 2 sliding water inlet; 3 lower water inlet; 4 upper slide plate; 5 middle slide plate; 6 lower slide plate; 7 oil cylinder. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention includes such modifications and variations within the scope of the appended claims and their equivalents.

[0021] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] One or more examples of the utility model are shown in the attached drawings. The detailed description uses numbers and letters to refer to the features in the drawings. Similar or similar marks in the drawings and descriptions have been used to refer to similar or similar parts of the utility model. As used herein, the terms "first", "second", and "third" etc. are used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0023] like Figures 1 to 5 As shown, according to an embodiment of the utility model, a water nozzle for alloy casting is provided, the water nozzle is installed on a water nozzle mechanism, the water nozzle mechanism has an upper water nozzle 1, and the upper water nozzle 1 has a steel outlet hole, such as Figure 1 and Figure 2 As shown, the water outlet includes a sliding water outlet 2 and a lower water outlet 3, wherein the sliding water outlet 2 is located between the upper water outlet 1 and the lower water outlet 3, and both the sliding water outlet 2 and the lower water outlet 3 have steel tapping holes, the steel tapping holes of the upper water outlet 1 and the steel tapping holes of the lower water outlet 3 are aligned, and the steel tapping holes of the sliding water outlet 2 can be aligned with or staggered with the steel tapping holes of the upper water outlet 1.

[0024] Furthermore, if Figure 3As shown, the sliding nozzle 2 has three slide plates, namely an upper slide plate 4, a middle slide plate 5 and a lower slide plate 6, wherein the middle slide plate 5 is located between the upper slide plate 4 and the lower slide plate 6. The upper slide plate 4 and the lower slide plate 6 are both provided with through holes, and the middle slide plate 5 is provided with a steel tapping hole, and the steel tapping hole of the middle slide plate 5 is the steel tapping hole of the sliding nozzle 2. When pouring steel, molten steel can flow out of the nozzle through the steel tapping hole of the upper nozzle 1, the through hole of the upper slide plate 4, the steel tapping hole of the middle slide plate 5, the through hole of the lower slide plate 6 and the steel tapping hole of the lower nozzle 3 in sequence.

[0025] Furthermore, if Figure 4 As shown, the upper and lower surfaces of the middle slide plate 5 are both planes, and the diameter of the cross section of the steel tapping hole of the middle slide plate 5 is 60 mm. Figure 5 As shown, the diameter of the cross section of the steel tapping hole of the water outlet 3 is 60 mm. When the middle slide plate 5 (sliding water outlet 2) and the water outlet 3 are used, the water outlet does not open automatically when casting ultra-low carbon high-temperature alloy varieties, and oxygen drainage is required. Compared with the prior art, the diameter of the steel tapping hole of the sliding water outlet 2 and the water outlet 3 is larger, and the steel flow is easy to flow in a circle, and casting is easy to succeed.

[0026] Furthermore, the tapping hole diameter at which the lower part of the upper water inlet 1 contacts the sliding water inlet 2 is usually 45 mm, and sometimes 60 mm. During hot repair of the ladle, if the upper water inlet 1 with a tapping hole diameter of 45 mm is in the middle and late stages of use, the diameter of the upper water inlet 1 will be close to 60 mm. At this time, there is no need to replace the upper water inlet 1. It is only necessary to replace the sliding water inlet and the lower water inlet used in the previous furnace with the sliding water inlet 2 and the lower water inlet 3 with a tapping hole diameter of 60 mm. If the upper water inlet 1 with a tapping hole diameter of 45 mm is in the initial stage of use, the tapping hole diameter of the upper water inlet 1 does not match the tapping hole diameter of the sliding water inlet 2. At this time, it is necessary to replace the upper water inlet 1 with a tapping hole diameter of 60 mm to ensure that the tapping holes of the upper water inlet 1, the sliding water inlet 2 and the lower water inlet 3 have a diameter of 60 mm when pouring steel.

[0027] Furthermore, it also includes an oil cylinder 7, which is connected to the sliding water gate 2 and can move the sliding water gate 2. The middle slide plate 5 is connected to both the upper slide plate 4 and the lower slide plate 6, and the oil cylinder 7 is connected to the middle slide plate 5, and the oil cylinder 7 can move the middle slide plate 5. The movement of the middle slide plate 5 can align or stagger the steel tapping hole of the middle slide plate 5 with the steel tapping hole of the lower water gate 3. During the ladle refining process, the steel tapping hole of the middle slide plate 5 is staggered with the steel tapping hole of the lower water gate 3, and the sliding water gate 2 plays the role of receiving molten steel. During casting, the oil cylinder 7 is used to move the middle slide plate 5, so that the steel tapping hole of the middle slide plate 5, the steel tapping hole of the upper water gate 1 and the steel tapping hole of the lower water gate 3 are all aligned, and the drainage sand flows out from the sliding water gate 2 and the lower water gate 3 under the action of gravity, and the molten steel then flows out from the sliding water gate 2 and the lower water gate 3.

[0028] The replacement method of the nozzle is:

[0029] 1. Replace the sliding gate: first open the gate mechanism, take out the used sliding gate and lower gate, then install the sliding gate 2 and lower gate 3 with a hole diameter of 60mm for the steel outlet, close the upper gate mechanism, pull the middle gate 5 of the sliding gate 2 through the cylinder 7, so that the steel outlet hole of the middle gate 5 is staggered with the steel outlet holes of the upper gate 1 and the lower gate 3. At this time, the sliding gate 2 plays the role of receiving molten steel during the ladle refining process.

[0030] 2. Start pouring: Before pouring, the middle slide plate 5 of the sliding nozzle 2 is pulled by the oil cylinder 7 to align the steel tapping hole of the sliding nozzle 2 with the steel tapping holes of the upper nozzle 1 and the lower nozzle 3, forming a steel tapping nozzle. The drainage sand flows out of the nozzle under the action of gravity, and the molten steel then flows out of the nozzle. If the drainage sand and the steel flow cannot flow out naturally, it is necessary to burn oxygen drainage at the bottom of the lower nozzle 3. After burning oxygen drainage, since the steel tapping hole of the nozzle with an aperture of 60mm is larger than that of the nozzle with an aperture of 45mm, the steel flow is easier to flow in a circle, and it is easier to cast successfully.

[0031] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0032] A water nozzle for alloy casting uses a sliding nozzle 2 and a lower nozzle 3 with a steel outlet hole diameter of 60 mm. When casting ultra-low carbon high-temperature alloy varieties, the water nozzle does not automatically open the oxygen drainage, the steel flow is larger, the steel flow is easier to flow in a circular shape, and the casting is easy to succeed.

[0033] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A nozzle for alloy casting, the nozzle is installed on a nozzle mechanism, the nozzle mechanism has an upper nozzle, characterized in that: The water inlet includes a sliding water inlet and a down water inlet, wherein: The sliding water inlet is located between the upper water inlet and the lower water inlet. The sliding nozzle and the lower nozzle are both provided with a steel tapping hole. The steel tapping hole of the sliding nozzle can be aligned with or staggered with the steel tapping hole of the lower nozzle.

2. The alloy casting nozzle according to claim 1, characterized in that: The sliding gate has three slide plates, which are an upper slide plate, a middle slide plate and a lower slide plate, and the middle slide plate is located between the upper slide plate and the lower slide plate.

3. The alloy casting nozzle according to claim 2, characterized in that: The upper and lower surfaces of the middle slide plate are both planes, and the diameter of the cross section of the steel outlet hole of the middle slide plate is 60 mm.

4. The alloy casting nozzle according to claim 1, characterized in that: The diameter of the cross section of the steel outlet hole of the water outlet is 60 mm.

5. The alloy casting nozzle according to claim 2, characterized in that: It also includes an oil cylinder, which is connected to the sliding water gate and can move the sliding water gate.

6. The alloy casting nozzle according to claim 5, characterized in that: The middle slide is connected to both the upper slide and the lower slide, and the oil cylinder is connected to the middle slide. The oil cylinder can move the middle slide, and the movement of the middle slide can align or stagger the steel outlet hole of the middle slide with the steel outlet hole of the lower water outlet.

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