Ultrasonic-assisted warm-pressing aging treatment device for powder material formed part

Abstract

The embodiment of the utility model relates to an ultrasonic-assisted warm-pressing aging treatment device for a powder material formed part, which comprises a warm-pressing loading cavity, a temperature controller, an upper sealing head, an upper sealing head sealing ring, a cavity, a piezoelectric ultrasonic vibrator, an ultrasonic vibrator sealing ring, a lower sealing head sealing ring and a lower sealing head, wherein the temperature and pressure loading cavity comprises an upper sealing head, an upper sealing head sealing ring, a cavity body, an ultrasonic vibrator sealing ring, a lower sealing head sealing ring and a lower sealing head. The piezoelectric ultrasonic vibrator converts an ultrasonic frequency electric signal input by the ultrasonic power supply into mechanical vibration with the same frequency and transmits ultrasonic waves to the liquid in the cavity after amplifying the amplitude, the ultrasonic waves soften the powder material forming part, the fluidity of materials in the powder material forming part is enhanced, creep deformation of the powder material forming part is promoted, and the powder material forming part is formed. And the ultrasonic waves can cause an ultrasonic cavitation effect in the liquid, and energy generated by the cavitation effect can promote a peristaltic effect of the powder material forming part, so that fine pores and cracks in the loaded powder material forming part can be more effectively healed.

Description

Technical Field

[0001] This application relates to the field of temperature and pressure aging treatment technology for powder material molded parts, and more specifically, to an ultrasonic-assisted temperature and pressure aging treatment device for powder material molded parts. Background Technology

[0002] By utilizing the physicochemical and acoustic softening effects of ultrasound, as well as the principle of treating internal damage in powder material molded parts through thermo-pressure aging, ultrasound promotes creep movement in powder material molded parts during thermo-pressure aging, reduces the resistance to plastic deformation of the material, and promotes micro-displacement of internal crystal particles in the powder material molded parts. This improves the healing effect of defects such as pores and cracks in the material, thereby obtaining powder material molded parts with better physical properties and higher safety and reliability.

[0003] While performing thermo-pressure aging on powder material molded parts, ultrasonic waves are used to soften the powder material molded parts, enhancing the fluidity of the internal material and promoting creep. Moreover, ultrasonic waves in liquids induce ultrasonic cavitation, and the energy generated by the cavitation effect can promote the creep effect of the powder material molded parts, thereby further healing the fine pores and cracks inside the loaded powder material molded parts that cannot be healed by thermo-pressure aging alone. Summary of the Invention

[0004] This application provides an ultrasonic-assisted thermo-pressure aging treatment device for powder material molding parts. It aims to further eliminate fine pores and cracks inside powder material molding parts that are difficult to eliminate with traditional thermo-pressure aging treatments.

[0005] This application provides an ultrasonic-assisted thermo-pressure aging treatment device for molding powder materials, comprising:

[0006] Thermo-pressure loading chamber includes an upper end cap, an upper end cap sealing ring, a cavity body, an ultrasonic transducer sealing ring, a lower end cap sealing ring, and a lower end cap. The upper end cap sealing ring is disposed between the upper end cap and the cavity body. The ultrasonic transducer sealing ring is fixed in a groove in the milled surface of the outer wall of the cavity body. The lower end cap sealing ring is disposed between the cavity body and the lower end cap.

[0007] Optionally, the upper end cap is provided with multiple through holes and non-through threaded holes around its perimeter, including a hydraulic oil inlet. The temperature controller is bolted to the upper end cap, and the upper end cap is bolted to the cavity. The upper end cap sealing ring is placed in the top groove of the cavity.

[0008] Optionally, the cavity is a cylindrical cavity, and the outer wall of the cavity has multiple evenly distributed milled surfaces, and the milled surfaces of the cavity are provided with through holes, grooves and multiple threaded holes;

[0009] Optionally, there are multiple ultrasonic transducer sealing rings, and each ultrasonic transducer sealing ring is disposed in a groove in the milled surface of the cavity;

[0010] Optionally, the lower end cap has multiple through holes around its perimeter, and the lower end cap is connected to the cavity by bolts. The sealing ring of the lower end cap is placed in the bottom groove of the cavity;

[0011] A temperature controller, wherein the flange of the temperature controller is connected to the upper end cap;

[0012] A piezoelectric ultrasonic transducer, wherein the flange position of the piezoelectric ultrasonic transducer is connected to the milled plane of the outer wall of the cavity;

[0013] Optionally, there are multiple piezoelectric ultrasonic transducers, each of which includes an output rod and a piezoelectric transducer. The output rod passes through the outer wall of the cavity and is connected to the cavity.

[0014] Optionally, a flange is provided on the output rod, and the flange on the output rod is connected to the milled surface of the cavity by bolts;

[0015] The ultrasonic-assisted thermo-pressure aging treatment device for powder material molding parts provided in this application includes a thermo-pressure loading chamber comprising an upper end cap, an upper end cap sealing ring, a cavity, an ultrasonic transducer sealing ring, a lower end cap sealing ring, and a lower end cap. The temperature controller flange is connected to the upper end cap, and the piezoelectric ultrasonic transducer flange is connected to the milled surface on the outer wall of the cavity. The piezoelectric ultrasonic transducer converts the ultrasonic frequency electrical oscillation signal input from the ultrasonic power supply into a mechanical vibration signal of the same frequency and amplifies the amplitude before transmitting ultrasonic waves to the liquid within the cavity. The ultrasonic waves soften the powder material molding part, enhancing the fluidity of the material inside the molding part to promote creep. Furthermore, the ultrasonic waves induce ultrasonic cavitation in the liquid, and the energy generated by the cavitation effect promotes the creep effect of the powder material molding part, thereby more effectively healing the fine pores and cracks inside the loaded powder material molding part. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a schematic diagram of the internal structure of an ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to an embodiment of this application.

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the upper end cap according to an embodiment of this application;

[0019] Figure 3 is a schematic diagram of the internal structure of a cavity according to an embodiment of this application;

[0020] Figure 4 is a three-dimensional structural schematic diagram of a piezoelectric ultrasonic transducer proposed in an embodiment of this application;

[0021] Figure 5 is a three-dimensional structural diagram of the lower end cap according to an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Temperature and pressure loading chamber, 2-Temperature controller, 3-Upper end cap, 4-Upper end cap sealing ring, 5-Cavity, 6-Ultrasonic transducer sealing ring, 7-Piezoelectric ultrasonic transducer, 8-Lower end cap sealing ring, 9-Lower end cap, 21-Output rod, 22-Piezoelectric transducer. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The thermo-pressure aging treatment technology has been successfully applied to the repair of internal damage in powder material molded parts. The thermo-pressure aging treatment has a good effect on the healing of internal damage in powder material molded parts, and can effectively heal the fine cracks and pores inside the powder material molded parts.

[0026] In related technologies, traditional thermo-pressure aging treatment has varying healing effects on damage of different sizes. For large pores within the material, its healing effect is not very good.

[0027] In view of this, this application creatively proposes an ultrasonic-assisted thermo-pressure aging treatment device for powder material molding parts, which aims to improve the healing effect of defects such as internal pores and cracks in the material.

[0028] Referring to Figure 1, which is a schematic diagram of the internal structure of an ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to an embodiment of this application, as shown in Figure 1, the ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials includes:

[0029] Thermo-pressure loading chamber 1 includes an upper end cap 3, an upper end cap sealing ring 4, a cavity 5, an ultrasonic transducer sealing ring 6, a lower end cap sealing ring 8, and a lower end cap 9. The upper end cap sealing ring 4 is disposed between the upper end cap 3 and the cavity 5. The ultrasonic transducer sealing ring 6 is fixed in a groove in the milled surface of the outer wall of the cavity 5. The lower end cap sealing ring 8 is disposed between the cavity 5 and the lower end cap 9.

[0030] Temperature controller 2, the flange of which is connected to the upper end cap 3;

[0031] The piezoelectric ultrasonic transducer 7 is connected to the milled plane on the outer wall of the cavity 5 at the flange position.

[0032] In this embodiment, the thermo-pressure loading cavity 1 includes an upper end cap 3, an upper end cap sealing ring 4, a cavity 5, an ultrasonic transducer sealing ring 6, a lower end cap sealing ring 8, and a lower end cap 9. A temperature controller 2 is mounted on the upper end cap 3. The piezoelectric ultrasonic transducer 7 is mounted on the milled surface of the outer wall of the cavity 5. Multiple corresponding through holes are provided around the cavity 5, the upper end cap 3, and the lower end cap 9 for bolt connections. The upper end cap sealing ring 4 is placed in a groove at the top of the cavity 5. The ultrasonic transducer sealing ring 6 is fixed in a groove on the milled surface of the outer wall of the cavity 5. The lower end cap sealing ring 8 is placed in a groove at the bottom of the cavity 5. Multiple piezoelectric ultrasonic transducers 7 are connected in a ring array on the milled surface of the outer wall of the cavity 5. The piezoelectric ultrasonic transducers 7 convert the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into a mechanical vibration signal of the same frequency and amplify the amplitude to soften the powder material molded part, enhance the fluidity of the material inside the powder material molded part, and promote the creep of the powder material molded part. Moreover, the ultrasonic waves in the liquid will induce the ultrasonic cavitation effect. The energy generated by the cavitation effect can promote the creep effect of the powder material molded part, thereby more effectively healing the fine pores and cracks inside the loaded powder material molded part.

[0033] The specific working process is as follows: the positive and negative electrode wires of the piezoelectric ultrasonic transducer are connected to the positive and negative terminals of the ultrasonic power supply. The piezoelectric ultrasonic transducers are connected in parallel. Then, the upper end cap 3, cavity 5, lower end cap 9 and other parts are assembled. The specimen is placed in the center of the bottom of the thermo-pressure loading cavity 1. The piezoelectric ultrasonic transducer 7 converts the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into an ultrasonic frequency mechanical vibration signal. After the amplitude is amplified by the output rod 21, the ultrasonic waves are transmitted to the liquid in the cavity 5. The ultrasonic waves soften the powder material molded part and enhance the fluidity of the material inside the powder material molded part to promote the creep of the powder material molded part. Moreover, the ultrasonic waves will induce ultrasonic cavitation effect in the liquid. The energy generated by the cavitation effect can promote the creep effect of the powder material molded part, thereby more effectively healing the fine pores and cracks inside the loaded powder material molded part.

[0034] Based on the above-described ultrasonic-assisted thermo-pressure aging treatment apparatus for powder material molding, this application provides the following specific examples of implementable methods. These examples can be arbitrarily combined without conflict to form a new ultrasonic-assisted thermo-pressure aging treatment apparatus for powder material molding. It should be understood that any new ultrasonic-assisted thermo-pressure aging treatment apparatus for powder material molding formed by combining any of these examples should fall within the protection scope of this application.

[0035] refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the internal structure of an ultrasonic-assisted thermo-pressure aging treatment device for molding powder materials, according to an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the upper cover 3 according to an embodiment of this application. Figure 3 This is a schematic diagram of the structure of cavity 5 according to an embodiment of this application, as shown below. Figures 1 to 3 As shown, in one feasible embodiment, the upper end cap 3 is provided with a non-through threaded hole corresponding to the flange of the temperature controller 2, a through hole corresponding to the cavity 5, and a hydraulic oil inlet. The upper end cap sealing ring 4 is placed in the groove at the top of the cavity 5.

[0036] In this embodiment, the flange on the temperature controller 2 is bolted to the upper end cap 3 through a non-through threaded hole on the upper end cap 3, and hydraulic oil can be injected into the thermo-pressure loading chamber 1 through the oil inlet on the upper end cap 3.

[0037] refer to Figures 3 to 5 , Figure 4 This is a schematic diagram of the structure of a piezoelectric ultrasonic transducer 7 according to an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the lower end cap 9 proposed in an embodiment of this application. In a feasible implementation, there are multiple piezoelectric ultrasonic transducers 7 and ultrasonic transducer sealing rings 6. Each piezoelectric ultrasonic transducer 7 includes an output rod 21 and a piezoelectric transducer 22. The output rod 21 passes through the outer wall of the cavity 5 and is connected to the milled surface of the outer wall of the cavity 5. Each ultrasonic transducer sealing ring 6 is fixed in the groove of the milled surface of the outer wall of the cavity 5.

[0038] In this embodiment, there are multiple piezoelectric ultrasonic transducers 7. Each piezoelectric ultrasonic transducer 7 includes an output rod 21 and a piezoelectric transducer 22. The output rod 21 passes through the outer wall of the cavity 5 and is connected to the milled surface of the outer wall of the cavity 5. Specifically, the milled surface of the outer wall of the cavity 5 has multiple through holes that cooperate with the output rod 21, and the multiple through holes are evenly distributed in a circular array. The output rod 21 passes through the through holes on the milled surface of the outer wall of the cavity 5 and is connected to the piezoelectric transducer 22. Specifically, a flange is provided on the output rod 21, and the flange on the output rod 21 is connected to the milled surface of the outer wall of the cavity 5 by bolts. The piezoelectric transducer 22... It can convert the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into a mechanical vibration signal of the same frequency, and amplify the amplitude through the output rod 21 and apply it to the powder material molded part, so as to soften the powder material molded part, enhance the fluidity of the material inside the powder material molded part, promote the material creep of the powder material molded part, and effectively heal the fine pores and cracks inside the loaded powder material molded part, thereby improving the physical properties and safety reliability of the powder material molded part.

[0039] In one feasible implementation, an ultrasonic transducer sealing ring 6 is provided between the milled plane of the outer wall of the cavity 5 and the flange of the output rod 21, and a lower end sealing ring 8 is provided between the bottom of the cavity 5 and the lower end 9.

[0040] It should be understood that although preferred embodiments of the present application have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present application. Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0041] The above provides a detailed description of an ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A device for ultrasonic-assisted thermo-pressure aging treatment of powder materials into molded parts, characterized in that, Includes: a thermo-pressure loading chamber (1), which includes an upper end cap (3), an upper end cap sealing ring (4), a cavity (5), an ultrasonic transducer sealing ring (6), a lower end cap sealing ring (8), and a lower end cap (9). The upper end cap sealing ring (4) is disposed between the upper end cap (3) and the cavity (5). The ultrasonic transducer sealing ring (6) is fixed in the groove of the milled surface of the outer wall of the cavity (5). The lower end cap sealing ring (8) is disposed between the cavity (5) and the lower end cap (9). A temperature controller (2) is connected to the upper end cap (3) at the flange position. A piezoelectric ultrasonic transducer (7) is connected to the milled surface of the outer wall of the cavity (5) at the flange position.

2. The ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to claim 1, characterized in that, The upper end cap (3) is provided with multiple through holes and non-through threaded holes around its perimeter, including a hydraulic oil inlet. The temperature controller (2) is connected to the upper end cap (3) by bolts. The upper end cap (3) is connected to the cavity (5) by bolts. The upper end cap sealing ring (4) is placed in the top groove of the cavity (5).

3. The ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to claim 1, characterized in that, The cavity (5) is a cylindrical cavity. The outer wall of the cavity (5) has multiple evenly distributed milled planes. The milled planes of the cavity (5) are provided with through holes, grooves and multiple threaded holes.

4. The ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to claim 1, characterized in that, There are multiple piezoelectric ultrasonic transducers (7), each of which includes an output rod (21) and a piezoelectric transducer (22). The output rod (21) passes through the outer wall of the cavity (5) and is connected to the cavity (5).

5. The ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to claim 1, characterized in that, There are multiple ultrasonic transducer sealing rings (6), and each ultrasonic transducer sealing ring (6) is placed in a groove in the milled surface of the outer wall of the cavity (5).

6. The ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to claim 4, characterized in that, A flange is provided on the output rod (21), and the flange on the output rod (21) is connected to the milled surface of the cavity (5) by bolts.

7. The ultrasonic-assisted thermo-pressure aging treatment device for forming powder materials according to claim 1, characterized in that, The lower end cap (9) has multiple through holes around its perimeter. The lower end cap (9) is connected to the cavity (5) by bolts. The lower end cap sealing ring (8) is placed in the bottom groove of the cavity (5).

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