Ultrasonic treatment equipment for casting molten metal

Abstract

The utility model relates to the technical field of metal material preparation, and discloses casting molten metal ultrasonic treatment equipment which comprises an ultrasonic generating device and an ultrasonic amplitude-change pole, the ultrasonic amplitude-change pole comprises a pole body and a probe, and the probe is used for outputting ultrasonic waves and comprises a fixing part and an output part connected with the fixing part. The first end of the rod body is connected with the ultrasonic generating device, the fixing part is installed at the second end of the rod body, and the included angle between the probe and the rod body ranges from 89.6 degrees to 91 degrees. During use, the ultrasonic amplitude-change pole extends into casting metal liquid, then the ultrasonic generating device is started, ultrasonic waves are transmitted into the casting metal liquid through the probe, the transmission direction of the ultrasonic waves is almost perpendicular to the liquid level of the casting metal liquid at the moment, and the ultrasonic waves can be transmitted to farther places in the casting metal liquid. And the refining range of particles in the casting molten metal is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of metal material preparation, in particular to ultrasonic processing equipment for casting molten metal. Background Art

[0002] Casting is a common process, and the quality of molten metal is an important factor affecting the quality of castings.

[0003] During the process of smelting, tempering, and adding various metal elements to molten iron, various harmful gases and non-metallic inclusions exist in the molten metal; and in the process of adding certain metal elements, due to the different material properties of each element, the melting point, density, particle size and other values ​​are uneven, it is difficult to ensure that the various metal elements are melted evenly in the molten metal, and solute segregation is prone to occur.

[0004] Therefore, how to refine the particles in the casting molten metal to improve the solute segregation problem, thereby improving the quality of the casting molten metal, has become a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] The purpose of the utility model is to at least solve the problem of how to refine the particles in the casting molten metal to improve the solute segregation, thereby improving the quality of the casting molten metal. This purpose is achieved through the following technical solutions:

[0006] In the first aspect, the utility model proposes an ultrasonic processing device for casting metal liquid, comprising: an ultrasonic generating device for providing ultrasonic waves; and an ultrasonic amplitude transformer, comprising a rod body and a probe, the probe being used to probe below the liquid surface of the metal casting liquid, the probe comprising a fixed part and an output part connected to the fixed part, the first end of the rod body being connected to the ultrasonic generating device, the fixed part being installed at the second end of the rod body, and the angle between the probe and the rod body being in the range of 89.6°-91°.

[0007] When using this ultrasonic treatment equipment for casting metal liquid, the ultrasonic horn is inserted into the casting metal liquid, the probe of the ultrasonic horn is placed below the liquid surface of the casting metal liquid, and then the ultrasonic generator is started to transmit the ultrasonic wave along the rod body of the ultrasonic horn, and finally transmitted to the casting metal liquid by the probe of the ultrasonic horn, so as to refine the particles in the casting metal liquid, thereby improving the problem of solute segregation and improving the quality of the casting metal liquid. Since the angle between the probe and the rod body ranges from 89.6° to 91°, it means that when the ultrasonic wave is finally transmitted from the probe to the casting metal liquid, the transmission direction of the ultrasonic wave is almost perpendicular to the liquid surface of the casting metal liquid, that is, the ultrasonic wave can be transmitted to a farther place in the casting metal liquid, thereby increasing the range of refining the particles in the casting metal liquid.

[0008] In some embodiments of the present invention, the angle between the probe and the rod body is 90°.

[0009] In some embodiments of the utility model, the probe also includes a connecting portion, through which the fixing portion is connected to the output portion; the extension direction of the fixing portion is the same as the extension direction of the rod body, the angle between the connecting portion and the fixing portion is 135°, and the angle between the connecting portion and the output portion is 135°.

[0010] In some embodiments of the present invention, the probe includes a fixing portion and a plurality of output portions, wherein the plurality of output portions are arranged at intervals around the circumference of the fixing portion and are respectively connected to the fixing portion.

[0011] In some embodiments of the present invention, the probe includes a plurality of connection parts, and the plurality of connection parts are arranged in one-to-one correspondence with the plurality of output parts, and each output part is connected to the fixing part through the corresponding connection part.

[0012] In some embodiments of the present invention, the plurality of output portions are evenly spaced around the circumference of the fixing portion.

[0013] In some embodiments of the utility model, the casting metal liquid ultrasonic processing equipment also includes a rotation drive device, the first end of the rod body is rotationally connected to the ultrasonic generating device, the rotation drive device is connected to the rod body, and the rotation drive device is used to drive the rod body to rotate around the axis of the rod body itself.

[0014] In some embodiments of the utility model, the ultrasonic generating device includes: an ultrasonic generator for providing alternating current; and an ultrasonic transducer connected to the ultrasonic generator, the ultrasonic transducer being used to receive the alternating current input by the ultrasonic generator and convert the electrical power into mechanical power; the first end of the rod body is connected to the ultrasonic transducer.

[0015] In some embodiments of the present invention, the ultrasonic horn is a graphite rod.

[0016] In some embodiments of the utility model, the casting metal liquid ultrasonic processing equipment comprises at least two ultrasonic horn rods, the two ultrasonic horn rods are arranged at intervals along the second direction, and the second direction is perpendicular to the extension direction of the rod body.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the structure of a casting metal liquid ultrasonic treatment device provided in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the ultrasonic treatment equipment for molten casting metal provided in an embodiment of the utility model when treating molten casting metal.

[0021] The reference numerals are as follows:

[0022] 100. Ultrasonic treatment equipment for casting molten metal.

[0023] 1. Ultrasonic wave generating device; 11. Ultrasonic wave generator; 12. Ultrasonic wave transducer;

[0024] 2. Ultrasonic horn; 21. Rod body; 22. Probe; 221. Fixing part; 222. Output part; 223. Connecting part;

[0025] 3. Rotation drive device;

[0026] 4. Casting molten metal; 41. Liquid level. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0029] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0030] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0031] Figure 1 The schematic diagram of the structure of the ultrasonic treatment equipment for casting molten metal provided by the embodiment of the utility model is as follows: Figure 1 As shown, an embodiment of the present application provides an ultrasonic processing device 100 for casting metal liquid, comprising: an ultrasonic generating device 1 for providing ultrasonic waves; and an ultrasonic amplitude transformer 2, comprising a rod body 21 and a probe 22, the probe 22 being used to probe below the liquid surface of the metal casting liquid, the probe 22 comprising a fixing portion 221 and an output portion 222 connected to the fixing portion 221, the first end of the rod body 21 being connected to the ultrasonic generating device 1, the fixing portion 221 being installed at the second end of the rod body 21, and the angle between the probe 22 and the rod body 21 is in the range of 89.6°-91°.

[0032] Figure 2 Schematic diagram of the ultrasonic treatment device for casting molten metal provided by the embodiment of the utility model when treating casting molten metal, and reference is made to Figure 2In this embodiment, first, for the convenience of description, the extension direction of the rod body 21 is defined as a first direction. When the casting metal liquid ultrasonic processing equipment 100 is used, the ultrasonic horn 2 is extended into the casting metal liquid 4 along the first direction, so that the probe 22 of the ultrasonic horn 2 is below the liquid surface 41 of the casting metal liquid 4, and then the ultrasonic generating device 1 is started to transmit the ultrasonic wave along the rod body 21 of the ultrasonic horn 2, and finally transmitted to the casting metal liquid 4 by the probe 22 of the ultrasonic horn 2.

[0033] Therefore, the casting metal liquid ultrasonic processing equipment 100 can refine the particles in the casting metal liquid 4 by transmitting ultrasonic waves into the casting metal liquid 4, thereby improving the problem of solute segregation and further improving the quality of the casting metal liquid 4.

[0034] The probe 22 of the ultrasonic horn 2 can be inserted below 50 mm of the liquid surface 41 of the casting molten metal 4 to ensure the energy transmission efficiency of the ultrasonic wave in the casting molten metal 4 .

[0035] Moreover, since the angle between the probe 22 and the rod body 21 is in the range of 89.6°-91°, it means that when the ultrasonic wave is finally transmitted from the probe 22 to the casting molten metal 4, the transmission direction of the ultrasonic wave is almost parallel to the liquid surface 41 of the casting molten metal 4, that is to say, the ultrasonic wave can be transmitted to a farther place in the casting molten metal 4, thereby improving the range of particle refinement in the casting molten metal 4.

[0036] In addition, the angle range between the probe 22 and the rod body 21 is set to 89.6°-91° because the measurement tolerance when manufacturing the ultrasonic horn 2 and the error of the transmission angle of the ultrasonic transmission process are taken into consideration. Therefore, the angle between the probe 22 and the rod body 21 is set to a preset range to ensure that when the ultrasonic wave is transmitted to the casting molten metal 4, the transmission direction of the ultrasonic wave is almost parallel to the liquid surface 41 of the casting molten metal 4, thereby ensuring that the ultrasonic wave can be transmitted to a farther place in the casting molten metal 4. Experiments have shown that when the angle between the probe 22 and the rod body 21 is between 89.6° and 91°, the ultrasonic wave finally transmitted from the probe 22 to the casting molten metal 4 can be transmitted in a direction almost parallel to the liquid surface 41; if the angle between the probe 22 and the rod body 21 is less than 89.6°, or the angle between the probe 22 and the rod body 21 is greater than 91°, the propagation direction of the ultrasonic wave finally transmitted from the probe 22 to the casting molten metal 4 will have a large deviation from the horizontal direction, and it cannot be guaranteed that the ultrasonic wave can be transmitted to a farther place in the casting molten metal 4.

[0037] Therefore, preferably, in an ideal state, according to an optional embodiment of the present application, the angle between the probe 22 and the rod body 21 is 90°. Figure 1 As shown in ∠α.

[0038] In this embodiment, since the angle between the probe 22 and the rod body 21 is 90°, that is, the two are perpendicular to each other, and the rod body 21 extends along the first direction, when the ultrasonic amplitude transformer 2 is extended into the casting molten metal 4 along the first direction, the ultrasonic wave can be transmitted from the probe 22 to the casting molten metal 4 in parallel with the liquid surface 41 of the casting molten metal 4, ensuring that most (about 60%) of the ultrasonic sound wave energy can be transmitted in the casting molten metal 4, thereby further ensuring the efficiency of refining the particles in the casting molten metal 4.

[0039] like Figure 1 As shown, according to an optional embodiment of the present application, the probe 22 also includes a connecting portion 223, and the fixing portion 221 is connected to the output portion 222 via the connecting portion 223; the extension direction of the fixing portion 221 is the same as the extension direction of the rod body 21 (that is, the fixing portion 221 also extends along the first direction), and the angle between the connecting portion 223 and the fixing portion 221 is 135°, and the angle between the connecting portion 223 and the output portion 222 is 135°.

[0040] In this embodiment, due to the existence of the connecting portion 223 and the extension of the fixed portion 221 along the first direction, the ultrasonic wave transmitted from the fixed portion 221 will be reflected on the connecting portion 223 along the first direction, and then transmitted to the output portion 222. It is not difficult to understand that the incident angle and reflection angle of the ultrasonic wave at the connecting portion 223 are both 45°, which effectively ensures that the ultrasonic wave can be transmitted to the casting molten metal 4 in a direction parallel to the liquid surface 41 of the casting molten metal 4.

[0041] Among them, the rod body 21, the fixing part 221, the connecting part 223 and the output part 222 can all be set to a structure with a quadrilateral cross-section (for example, a rectangle); the purpose of this setting is: compared with an irregular cross-section, the ultrasonic horn 2 with a quadrilateral cross-section can ensure the stability of the transmission line of the ultrasonic wave in the ultrasonic horn 2, thereby improving the transmission efficiency of the ultrasonic wave.

[0042] According to an optional embodiment of the present application, the probe 22 includes a fixing portion 221 and a plurality of output portions 222 , wherein the plurality of output portions 222 are arranged at intervals around the circumference of the fixing portion 221 and are respectively connected to the fixing portion 221 .

[0043] In this embodiment, the provision of multiple output parts 222 can achieve that the ultrasonic waves are ultimately transmitted to the casting molten metal 4 from different positions, thereby effectively improving the efficiency of particle refinement in the casting molten metal 4.

[0044] refer to Figure 1 and Figure 2According to an optional embodiment of the present application, the probe 22 includes a plurality of connecting parts 223 , and the plurality of connecting parts 223 are arranged in one-to-one correspondence with the plurality of output parts 222 , and each output part 222 is connected to the fixing part 221 through the corresponding connecting part 223 .

[0045] In the present embodiment, it is easy to understand that when a plurality of connecting parts 223 and a plurality of output parts 222 are arranged in one-to-one correspondence, the relationship between the fixed part 221 and each group of corresponding connecting parts 223 and output parts 222 can be set as follows: the angle between the connecting part 223 and the fixed part 221 is 135°, and the angle between the connecting part 223 and the output part 222 is 135°; thereby effectively ensuring that the ultrasonic wave output by each output part 222 can be transmitted to the casting molten metal 4 in a direction parallel to the liquid surface 41 of the casting molten metal 4.

[0046] According to an optional embodiment of the present application, a plurality of output portions 222 are evenly spaced around the circumference of the fixing portion 221 .

[0047] In this embodiment, the evenly spaced arrangement of the multiple output portions 222 can make the ultrasonic wave be transmitted more evenly and widely in the casting molten metal 4, thereby further improving the efficiency of particle refinement in the casting molten metal 4.

[0048] like Figure 1 and Figure 2 As shown, according to an optional embodiment of the present application, the casting metal liquid ultrasonic processing equipment 100 also includes a rotation drive device 3, the first end of the rod body 21 is rotationally connected to the ultrasonic generating device 1, and the rotation drive device 3 is connected to the rod body 21, and the rotation drive device 3 is used to drive the rod body 21 to rotate around the axis of the rod body 21 itself.

[0049] In this embodiment, when the probe 22 of the ultrasonic amplitude transformer 2 is extended below the liquid surface 41 of the casting molten metal 4, while starting the ultrasonic generating device 1, the rotation driving device 3 can also be started to make the rod body 21 and the probe 22 rotate together around the axis of the rod body 21 itself; in this way, the ultrasonic wave transmitted to the casting molten metal 4 by the output part 222 of the probe 22 can be transmitted in all directions in the casting molten metal 4, and the casting molten metal 4 will be stirred under the action of the rotation of the rod body 21 and the probe 22, thereby more effectively improving the problem of solute segregation and further improving the quality of the casting molten metal 4.

[0050] Among them, the rotation drive device 3 may include a speed regulating rotator and a gear rack device. The speed regulating rotator drives the rod body 21 to rotate around the axis of the rod body 21 itself by driving the gear rack to rotate; the speed regulating rotator can also adjust the rotation speed of the rod body 21 to suit different working conditions.

[0051] refer to Figure 1 and Figure 2 According to an optional embodiment of the present application, the ultrasonic generating device 1 includes: an ultrasonic generator 11, which is used to provide alternating current; and an ultrasonic transducer 12, which is connected to the ultrasonic generator 11, and the ultrasonic transducer 12 is used to receive the alternating current input by the ultrasonic generator 11 and convert the electrical power into mechanical power; the first end of the rod body 21 is connected to the ultrasonic transducer 12.

[0052] The ultrasonic generator 11 may also be referred to as an ultrasonic driving power supply or an ultrasonic controller. The type of the ultrasonic generator 11 is not limited. For example, the ultrasonic generator 11 may be an electronic box. A suitable ultrasonic generator 11 may be selected based on actual working conditions.

[0053] In this embodiment, when it is necessary to transmit ultrasonic waves to the casting molten metal 4, the ultrasonic generator 11 is started, and the ultrasonic waves generate high-frequency alternating current to input electrical power to the ultrasonic transducer 12. The ultrasonic transducer 12 then converts the received electrical power into mechanical power (i.e., ultrasonic waves). Then, the ultrasonic amplitude transformer 2 transmits the ultrasonic waves from the probe 22 to the casting molten metal 4 through the rod body 21.

[0054] According to an optional embodiment of the present application, the ultrasonic horn 2 is a graphite rod.

[0055] In this embodiment, since the temperature of the casting molten metal 4 is usually high, and the graphite material has the advantage of high temperature resistance, it can reduce the occurrence of damage to the ultrasonic horn 2 due to excessive temperature, and further ensure the transmission efficiency of the ultrasonic wave.

[0056] In addition, as can be seen from the above, when the angle between the connecting portion 223 and the fixing portion 221 is 135°, and the angle between the connecting portion 223 and the output portion 222 is 135°, it can be ensured that the ultrasonic wave can be transmitted to the casting molten metal 4 in a direction parallel to the liquid surface 41 of the casting molten metal 4. When the material of the ultrasonic horn 2 is graphite, according to the transmission characteristics of ultrasonic waves in graphite, total reflection can occur when the incident angle is greater than 23°, and no refracted wave is generated, thereby further improving the efficiency of the ultrasonic wave being finally transmitted to the casting molten metal 4.

[0057] According to an optional embodiment of the present application, the casting metal liquid ultrasonic processing equipment 100 includes at least two ultrasonic horns 2, and the two ultrasonic horns 2 are arranged at intervals along the second direction, and the second direction is perpendicular to the extension direction of the rod body 21.

[0058] It is easy to understand that when the ultrasonic generating device 1 includes an ultrasonic generator 11 and an ultrasonic transducer 12, an ultrasonic generator 11 can be provided to be connected to a plurality of ultrasonic transducers 12, and a plurality of ultrasonic transducers 12 can be provided in a one-to-one correspondence with a plurality of ultrasonic horns 2, such as Figure 1 and Figure 2 shown.

[0059] In this embodiment, since there are at least two ultrasonic transformers 2, that is, at least two parts of the ultrasonic wave can be transmitted to the casting molten metal 4, the ultrasonic wave can be propagated more and more widely in the casting molten metal 4, thereby more effectively improving the efficiency of particle refinement in the casting molten metal 4, thereby further improving the quality of the casting molten metal 4.

[0060] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A casting metal liquid ultrasonic treatment device, characterized in that: include: An ultrasonic generating device, used for providing ultrasonic waves; as well as An ultrasonic horn comprises a rod body and a probe, wherein the probe is used to probe below the liquid surface of the casting metal liquid, the probe comprises a fixing portion and an output portion connected to the fixing portion, the first end of the rod body is connected to the ultrasonic generating device, the fixing portion is installed at the second end of the rod body, and the angle between the probe and the rod body ranges from 89.6° to 91°.

2. The ultrasonic treatment equipment for casting molten metal according to claim 1, characterized in that: The angle between the probe and the rod body is 90°.

3. The ultrasonic treatment equipment for casting molten metal according to claim 1, characterized in that: The probe further comprises a connecting portion, and the fixing portion is connected to the output portion through the connecting portion; The extending direction of the fixing portion is the same as the extending direction of the rod body, the angle between the connecting portion and the fixing portion is 135°, and the angle between the connecting portion and the output portion is 135°.

4. The ultrasonic treatment equipment for casting molten metal according to claim 3, characterized in that: The probe includes one fixing part and a plurality of output parts. The plurality of output parts are arranged at intervals around the circumference of the fixing part and are respectively connected to the fixing part.

5. The ultrasonic treatment equipment for casting molten metal according to claim 4, characterized in that: The probe comprises a plurality of the connecting parts, the plurality of the connecting parts are arranged in one-to-one correspondence with the plurality of the output parts, and each of the output parts is connected to the fixing part through the corresponding connecting part.

6. The ultrasonic treatment equipment for casting molten metal according to claim 5, characterized in that: The plurality of output portions are evenly spaced around the circumference of the fixing portion.

7. The ultrasonic treatment equipment for casting molten metal according to claim 1, characterized in that: The casting metal liquid ultrasonic processing equipment also includes a rotation drive device, the first end of the rod body is rotationally connected to the ultrasonic generating device, the rotation drive device is connected to the rod body, and the rotation drive device is used to drive the rod body to rotate around the axis of the rod body itself.

8. The ultrasonic treatment equipment for casting molten metal according to claim 1, characterized in that: The ultrasonic generating device comprises: an ultrasonic generator for providing alternating current; and An ultrasonic transducer is connected to the ultrasonic generator, and is used to receive the alternating current input by the ultrasonic generator and convert the electrical power into mechanical power; the first end of the rod body is connected to the ultrasonic transducer.

9. The ultrasonic treatment equipment for casting molten metal according to claim 1, characterized in that: The ultrasonic horn is a graphite rod.

10. The ultrasonic treatment equipment for casting molten metal according to any one of claims 1 to 9, characterized in that: The casting metal liquid ultrasonic processing equipment comprises at least two ultrasonic horns, which are arranged at intervals along a second direction, and the second direction is perpendicular to the extension direction of the rod body.

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