A metal solidification device based on synchrotron radiation high-speed imaging

Abstract

The present invention relates to a metal solidification device based on synchrotron radiation high-speed imaging, comprising a support, an ultrasonic device and a heating device, wherein a first connecting member and a second connecting member are arranged on the support, the ultrasonic device comprises an internally hollow shell, the top of the shell is connected to the first connecting member through a slip ring, an ultrasonic tool head is arranged in the shell, a connecting wire of the ultrasonic tool head extends out of the shell through an opening and is connected to the slip ring; the heating device is connected to the second connecting member, a quartz tube for holding a metal sample is arranged in the heating device, the top of the quartz tube extends out of the heating device and extends into the shell, the quartz tube is fixedly connected to the shell, the bottom of the ultrasonic tool head extends into the quartz tube; a first screw is fixed to the bottom of the quartz tube. In the metal solidification device based on synchrotron radiation high-speed imaging of the present invention, the rotation of the metal sample does not interfere with the heating device, so the rotation speed will not deviate from the field of view due to the center of gravity offset, and the detection requirements of synchrotron radiation high-speed imaging are met.

Description

Technical Field

[0001] The invention relates to a metal solidification device, and more particularly to a metal solidification device based on synchrotron radiation high-speed imaging. Background Art

[0002] Metal solidification is the phase change process of metal from liquid to solid. In most cases, the solidification of metal is the process of crystal or grain formation and growth, which not only determines the structure, organization and properties of metals and alloys, but also affects the subsequent plastic processing and heat treatment. Therefore, the study of metal solidification process is very important to improve the performance of metals.

[0003] At present, synchrotron radiation high-speed imaging has become an important means of studying the metal solidification process. For certain specific research processes, such as applying high-frequency ultrasonic vibrations to the metal solidification process, the imaging speed of X-rays directly determines the reliability of related research experiments. The existing metal solidification device includes a heating device and an ultrasonic device. After the sample is placed in the ultrasonic device and the heating device, it is fixed on the rotating table of the synchrotron radiation high-speed imaging device and rotates synchronously with the rotating table.

[0004] However, due to the limited load-bearing capacity of the rotating table, the weight of the ultrasonic device and the heating device should not be too large. While meeting the weight requirements, the center must still be consistent with the rotation axis of the rotating table. Otherwise, during high-speed rotation, the rotation will be locked due to the shift of the center of gravity. On the other hand, during the rotation process, the rotation of the ultrasonic device is greatly affected by the circuit of the electronic control device. This will limit the use of the ultrasonic device and make it unsuitable for the study of the coagulation process with an external high-frequency ultrasonic field. Summary of the invention

[0005] The purpose of the present invention is to provide a metal solidification device based on synchrotron radiation high-speed imaging, so that the rotation of the sample does not interfere with the ultrasonic device, thereby being suitable for the study of the coagulation process with an external high-frequency ultrasonic field.

[0006] The present invention provides a metal solidification device based on synchrotron radiation high-speed imaging, comprising:

[0007] A bracket, wherein the bracket is provided with a first connecting member and a second connecting member extending laterally;

[0008] An ultrasonic device, comprising a hollow shell with holes at both ends, the top of the shell connected to the first connector via a slip ring, an ultrasonic tool head arranged in the shell, a connecting wire of the ultrasonic tool head extending out of the shell through the upper opening and connected to the slip ring; and

[0009] A heating device is connected to the second connecting piece and is located below the ultrasonic device. A quartz tube for holding a metal sample is arranged in the heating device. The top of the quartz tube extends out of the heating device and extends into the shell from the lower end opening of the shell. The bottom of the ultrasonic tool head is accommodated in the quartz tube. A first screw is fixed to the bottom of the quartz tube.

[0010] Furthermore, the housing includes an upper end cover, a lower end cover and a second screw threadedly connected between the upper end cover and the lower end cover, the ultrasonic tool head is fixedly connected to the upper end cover, and the quartz tube is fixedly connected to the lower end cover.

[0011] Furthermore, a pan head is provided on the second connecting member, and the heating device is fixed on the pan head.

[0012] Furthermore, the heating device includes a hot end connecting block and a cold end connecting block with hollow interiors. A hot end heating ceramic tube is arranged in the inner cavity of the hot end connecting block around the quartz tube, and a cold end heating ceramic tube is arranged in the inner cavity of the cold end connecting block around the quartz tube.

[0013] Furthermore, the hot end connection block and the cold end connection block are connected by a screw.

[0014] Furthermore, the hot-end heating ceramic tube and the cold-end heating ceramic tube are fixedly connected to the hot-end connecting block and the cold-end connecting block respectively through high-temperature glue.

[0015] Furthermore, thermal conductive paste is provided between the hot-end heating ceramic tube, the cold-end heating ceramic tube and the quartz tube.

[0016] Furthermore, thermocouples are provided on both the hot end connection block and the cold end connection block.

[0017] Furthermore, the first connecting member and the second connecting member each include an adjusting screw, a sleeve and an adjusting lead screw, and the adjusting screw and the adjusting lead screw are respectively threadedly connected to two ends of the sleeve.

[0018] Furthermore, the bracket is provided with a plurality of reserved mounting holes of different heights.

[0019] The metal solidification device based on synchrotron radiation high-speed imaging of the present invention fixes the heating device on an external bracket, and at the same time, a quartz tube for holding a metal sample is arranged in the heating device, so that the metal sample can rotate with the quartz tube without interfering with the heating device, so the rotation speed will not deviate from the field of view due to the displacement of the center of gravity of the heating device, thereby meeting the detection requirements of synchrotron radiation high-speed imaging; the outer shell is connected to the first connecting piece through a slip ring to avoid line entanglement during rotation, so that the ultrasonic field can be smoothly added, so that synchrotron radiation high-speed imaging can be used to realize the solidification process research of the external ultrasonic field. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of a metal solidification device based on synchrotron radiation high-speed imaging according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings and described in detail.

[0022] like Figure 1 As shown, an embodiment of the present invention provides a metal solidification device based on synchrotron radiation high-speed imaging, including a bracket 1, an ultrasonic device 2 and a heating device 3. The bracket 1 is fixed to the ground and is used to support and fix the heating device 3 and the ultrasonic device 2. A first connecting member 11 and a second connecting member 12 extending in the transverse direction are arranged on the bracket 1. The ultrasonic device 2 includes an internal hollow shell 21, and an ultrasonic tool head 22 is fixed in the shell 21. The top of the shell 21 is connected to the first connecting member 12 through a slip ring 4. The top of the shell 21 has an opening 210. The connecting wire of the ultrasonic tool head 22 extends out of the shell 21 through the opening 210 and is connected to the slip ring 4. The slip ring 4 is electrically connected to an external ultrasonic generator (not shown in the figure). Since the slip ring 4 can supply power to the rotating ultrasonic tool head 22 and rotate with it, compared with the traditional fixed wire harness connection method, the slip ring can transmit various energy and signals by means of the mutual friction between its internal metal ring and the carbon brush, so that the connection The wire harness is relatively isolated from the rotating device, thereby avoiding the entanglement of the wires during rotation. At the same time, the motion isolation of the wire harness is very beneficial to the spatial fixation of the wire harness, and is beneficial to matching a higher rotation speed for the device during high-speed three-dimensional imaging. The heating device 3 is fixedly connected to the second connecting piece 12 through the pan-tilt head 7. A quartz tube 5 is arranged in the heating device 3, and a metal sample is placed in the quartz tube 5. The metal sample in the quartz tube 5 is heated by the heating device 3, so as to achieve solidification of the metal sample. The top of the quartz tube 5 extends out of the heating device 3, and extends into the shell 21 from the bottom of the shell 21, and is fixedly connected to the shell 21. The bottom of the ultrasonic tool head 22 extends into the quartz tube 5 from the top of the quartz tube 5 to apply an ultrasonic field to the metal sample. A first screw 6 is fixed to the bottom of the quartz tube 5 for connecting to a rotating table (not shown in the figure) of synchrotron radiation, and rotating at high speed following the rotating table, so as to achieve synchrotron radiation high-speed imaging. Driven by the rotating table and the first screw 6, the quartz tube 5, the housing 21 and the ultrasonic tool head 22 will rotate synchronously at high speed. The pan / tilt 7 can adjust the coaxiality of the heating device 3 and the quartz tube 5 to ensure that the quartz tube 5 does not interfere with the heating device 3 during rotation. Therefore, the rotation speed will not deviate from the field of view due to the offset of the center of gravity of the heating device 3 and the bracket 1, so that synchrotron radiation high-speed imaging can be used to realize the study of the coagulation process in an external ultrasonic field.

[0023] The housing 21 includes an upper end cover 211, a lower end cover 212 and two second screw rods 213 connected between the upper and lower end covers, the second screw rods 213 are threadedly connected to the upper end cover 211 and the lower end cover 212, the top of the ultrasonic tool head 22 is fixedly connected to the upper end cover 211, and the top of the quartz tube 5 is fixedly connected to the lower end cover 212; by adjusting the depth of the second screw rod 213 screwed into the upper and lower end covers, the distance between the upper and lower end covers can be adjusted, thereby adjusting the depth of the ultrasonic tool head 22 immersed in the metal sample, that is, by changing the contact degree between the ultrasonic tool head and the sample, the intensity of the ultrasonic field applied to the metal sample as a whole can be adjusted.

[0024] The heating device 3 includes a hot end (high temperature end) connecting block 31 and a cold end (low temperature end) connecting block 32 which are hollow inside. The temperature gradient in the metal sample is realized through the hot and cold end modules, that is, a temperature difference is formed from top to bottom, thereby forming the temperature field required during the ultrasonic action process. The quartz tube 5 is located in the inner cavity of the hot end connecting block 31 and the cold end connecting block 32. In the inner cavity of the hot end connecting block 31, a hot end heating ceramic tube 311 is arranged around the quartz tube 5 for heating the quartz tube 5 in the hot end connecting block 31. In the inner cavity of the cold end connecting block 32, a cold end heating ceramic tube 321 is arranged around the quartz tube 5 for heating the quartz tube 5 in the cold end connecting block 31. The temperatures of the hot end and the cold end can be set according to actual needs to achieve the required temperature gradient. The hot end heating ceramic tube 311 and the cold end heating ceramic tube 321 are fixedly connected to the hot end connecting block 31 and the cold end connecting block 32 respectively through high-temperature glue; thermal conductive paste is arranged between the hot end heating ceramic tube 311, the cold end heating ceramic tube 321 and the quartz tube 5, and heat is transferred through the thermal conductive paste, so that the quartz tube 5 can rotate and achieve effective heat transfer. Thermocouples 34 are also provided on the hot end connection block 31 and the cold end connection block 32, respectively, for monitoring the temperature of the hot end heating ceramic tube 311 and the cold end heating ceramic tube 321. The hot end connection block 31 and the cold end connection block 32 are fastened and connected by a screw 33, and the distance between the hot end connection block 31 and the cold end connection block 32 can be adjusted by rotating the screw 33. By means of the relationship between the heat radiation degree and the distance of the hot end and cold end heating ceramic tubes, when the temperature is coupled to a stable gradient, the temperature field is matched with the metal sample in the quartz tube under the confirmation of the thermocouple temperature value and an external temperature measuring instrument (such as an infrared thermal imaging camera, not shown in the figure).

[0025] The hot end connection block 31 , the cold end connection block 32 and the pan / tilt head 7 are made of stainless steel, which can withstand a high temperature of 800° C., so as to meet the temperature requirements during the metal solidification process.

[0026] The quartz tube 5 is provided with a gas channel (not shown) for introducing a protective atmosphere for anti-oxidation protection of the metal sample under high temperature conditions.

[0027] The first connecting member 11 includes an adjusting screw 111, a sleeve 112 and an adjusting lead screw 113, wherein the adjusting screw 111 and the adjusting lead screw 113 are respectively threadedly connected to the two ends of the sleeve 112, and the depth of the adjusting screw 111 and the adjusting lead screw 113 screwed into the sleeve 112 can be changed by rotating the adjusting screw 111 and the adjusting lead screw 113, thereby changing the length of the first connecting member 11. The structure of the second connecting member 12 is the same as that of the first connecting member 11, and will not be repeated here.

[0028] During installation, by adjusting the lengths of the first connection 11 and the second connection 12, the positions of the ultrasonic device 2 and the heating device 3 can be matched, thereby completing the installation smoothly.

[0029] The bracket 1 is also provided with a plurality of reserved mounting holes 13 at different heights. By installing the first connecting member 11 and the second connecting member 12 in the reserved mounting holes 13 at different heights, the distance between the ultrasonic device 2 and the heating device 3 can be adjusted.

[0030] Preferably, other connectors may be installed in the reserved mounting holes 13 and other external field devices may be installed on the bracket 1, thereby realizing the metal solidification research under the influence of other external fields.

[0031] In the metal solidification device based on synchrotron radiation high-speed imaging of the embodiment of the present invention, the heating device 3 is fixed on the external bracket 1, and a quartz tube 5 for holding the metal sample is arranged in the heating device 3, so that the metal sample can rotate with the quartz tube 5 without interfering with the heating device 3, so the rotation speed will not deviate from the field of view due to the offset of the center of gravity of the bracket 1 and the heating device 3, thereby meeting the detection requirements of synchrotron radiation high-speed imaging; the outer shell 21 is connected to the first connecting member 11 through the slip ring 4 to avoid line entanglement during rotation, so that the ultrasonic field can be added smoothly, so that synchrotron radiation high-speed imaging can be used to realize the solidification process research of the external ultrasonic field.

[0032] The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The above embodiment of the present invention can also be modified in various ways. That is, all simple, equivalent changes and modifications made according to the claims and the description of the present invention fall within the scope of protection of the claims of the present invention. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A metal solidification device based on synchrotron radiation high-speed imaging, characterized in that: include: A bracket, wherein the bracket is provided with a first connecting member and a second connecting member extending laterally; The ultrasonic device comprises a hollow shell with holes at both ends, the top of the shell is connected to the first connecting member through a slip ring, an ultrasonic tool head is arranged in the shell, and a connecting wire of the ultrasonic tool head extends out of the shell through the upper end hole and is connected to the slip ring; as well as A heating device connected to the second connecting member and located below the ultrasonic device, wherein a quartz tube for holding a metal sample is arranged in the heating device, the top of the quartz tube extends out of the heating device and extends into the shell from the lower end opening of the shell, the bottom of the ultrasonic tool head is accommodated in the quartz tube, and a first screw rod is fixed to the bottom of the quartz tube; The heating device comprises a hot end connection block and a cold end connection block which are hollow inside, a hot end heating ceramic tube is arranged in the inner cavity of the hot end connection block around the quartz tube, and a cold end heating ceramic tube is arranged in the inner cavity of the cold end connection block around the quartz tube; The hot end connection block and the cold end connection block are connected by a screw; The first connecting member and the second connecting member both include an adjusting screw, a sleeve and an adjusting lead screw, and the adjusting screw and the adjusting lead screw are respectively threadedly connected to two ends of the sleeve.

2. The metal solidification device based on synchrotron radiation high-speed imaging according to claim 1, characterized in that: The housing comprises an upper end cover, a lower end cover and a second screw threadedly connected between the upper end cover and the lower end cover, the ultrasonic tool head is fixedly connected to the upper end cover, and the quartz tube is fixedly connected to the lower end cover.

3. The metal solidification device based on synchrotron radiation high-speed imaging according to claim 1, characterized in that: The second connecting member is provided with a platform, and the heating device is fixed on the platform.

4. The metal solidification device based on synchrotron radiation high-speed imaging according to claim 1, characterized in that: The hot end heating ceramic tube and the cold end heating ceramic tube are fixedly connected to the hot end connecting block and the cold end connecting block respectively through high temperature glue.

5. The metal solidification device based on synchrotron radiation high-speed imaging according to claim 4, characterized in that: Thermal conductive paste is arranged between the hot end heating ceramic tube, the cold end heating ceramic tube and the quartz tube.

6. The metal solidification device based on synchrotron radiation high-speed imaging according to claim 1, characterized in that: The hot end connection block and the cold end connection block are both provided with thermocouples.

7. The metal solidification device based on synchrotron radiation high-speed imaging according to claim 1, characterized in that: The bracket is provided with a plurality of reserved mounting holes of different heights.

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