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

Abstract

The embodiment of the invention 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] The present application relates to the technical field of temperature-pressing and aging treatment of powder material molded parts, and in particular to a device for performing ultrasonic-assisted temperature-pressing and aging treatment of powder material molded parts. Background Art

[0002] By utilizing the physical and chemical effects and acoustic softening effects of ultrasound and the principle of temperature-pressure aging treatment for internal damage of powder material molded parts, ultrasound is used to promote the creep movement of powder material molded parts during temperature-pressure aging treatment, reduce the resistance to plastic deformation of the material, and promote micro-displacement of crystal particles inside the powder material molded parts, so as to improve the healing effect of defects such as pores and cracks inside the material, thereby obtaining powder material molded parts with better physical properties and higher safety and reliability.

[0003] While the powder material molded parts are being subjected to temperature and pressure aging treatment, ultrasound is used to soften the powder material molded parts, thereby enhancing the fluidity of the material inside the powder material molded parts and promoting the creep of the powder material molded parts. In addition, ultrasound can induce ultrasonic cavitation effect in the liquid. 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 temperature and pressure aging treatment alone. Summary of the invention

[0004] The embodiment of the present application provides an ultrasonic-assisted temperature-pressing aging treatment device for powder material molded parts, which is intended to further eliminate the fine pores and cracks inside the powder material molded parts that are difficult to eliminate by traditional temperature-pressing aging treatment.

[0005] The present application provides an ultrasonic-assisted temperature-pressing aging treatment device for powder material forming parts, comprising: A temperature and pressure loading chamber, the temperature and pressure loading chamber comprising an upper head, an upper head sealing ring, a cavity, an ultrasonic vibrator sealing ring, a lower head sealing ring and a lower head, the upper head sealing ring is arranged between the upper head and the cavity, the ultrasonic vibrator sealing ring is fixed in a groove of a milled plane on the outer wall of the cavity, and the lower head sealing ring is arranged between the cavity and the lower head; Optionally, the upper head is provided with a plurality of through holes and non-through threaded holes around it, including a hydraulic oil inlet, the temperature controller is connected to the upper head by bolts, and the upper head is connected to the cavity by bolts. The upper head sealing ring is placed in the top groove of the cavity; Optionally, the cavity is a cylindrical cavity, and a plurality of evenly distributed milling planes are provided on the outer wall of the cavity, and a through hole, a groove and a plurality of threaded holes are provided on the milling plane of the cavity; Optionally, there are multiple ultrasonic vibrator sealing rings, and each of the ultrasonic vibrator sealing rings is placed in a groove on the milled plane of the cavity; Optionally, the lower head is provided with a plurality of through holes around it, and the lower head is connected to the cavity by bolts. The lower head sealing ring is placed in the bottom groove of the cavity; A temperature controller, wherein the temperature controller is connected to the upper head at a flange position; A piezoelectric ultrasonic vibrator, wherein the flange of the piezoelectric ultrasonic vibrator is connected to the milled plane of the outer wall of the cavity; Optionally, there are multiple piezoelectric ultrasonic vibrators, each of which includes an output rod and a piezoelectric transducer, and the output rod passes through the outer wall of the cavity and is connected to the cavity; Optionally, a flange is provided on the output rod, and the flange on the output rod is connected to the milled plane of the cavity by bolts; The ultrasonic-assisted temperature-pressure aging treatment device for powder material molded parts provided by the present application is adopted, wherein the temperature-pressure loading chamber includes an upper head, an upper head sealing ring, a cavity, an ultrasonic vibrator sealing ring, a lower head sealing ring and a lower head, the temperature controller is connected to the upper head at the flange position, and the piezoelectric ultrasonic vibrator is connected to the milled plane of the outer wall of the cavity at the flange position. The piezoelectric ultrasonic vibrator converts the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into a mechanical vibration signal of the same frequency and transmits ultrasonic waves to the liquid in the cavity after amplifying the amplitude. The ultrasonic waves soften the powder material molded parts and enhance the fluidity of the materials inside the powder material molded parts to promote the creep of the powder material molded parts. In addition, 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 parts, thereby more effectively healing the fine pores and cracks inside the loaded powder material molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0007] FIG1 is a schematic diagram of the internal structure of a device for ultrasonic-assisted temperature-pressure aging treatment of powder material molding parts proposed in one embodiment of the present application; FIG2 is a schematic diagram of the three-dimensional structure of the upper head proposed in one embodiment of the present application; FIG3 is a schematic diagram of the internal structure of a cavity according to an embodiment of the present application; FIG4 is a schematic diagram of the three-dimensional structure of a piezoelectric ultrasonic vibrator proposed in an embodiment of the present application; FIG. 5 is a schematic diagram of the three-dimensional structure of the lower head proposed in an embodiment of the present application.

[0008] Description of reference numerals: 1-temperature and pressure loading chamber, 2-temperature controller, 3-upper head, 4-upper head sealing ring, 5-cavity, 6-ultrasonic vibrator sealing ring, 7-piezoelectric ultrasonic vibrator, 8-lower head sealing ring, 9-lower head, 21-output rod, 22-piezoelectric transducer. DETAILED DESCRIPTION

[0009] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0010] Temperature and pressure aging treatment technology has been successfully applied to the repair of internal damage of powder material moldings. Temperature and pressure aging treatment has a relatively good effect on the healing of internal damage of powder material moldings, and can effectively heal the fine cracks and pores inside powder material moldings.

[0011] In the related art, the traditional temperature-pressure aging treatment technology has different healing effects on damages of different sizes, and its healing effect is not very good for large pores inside the material.

[0012] In view of this, the present application creatively proposes an ultrasonic-assisted temperature-pressing aging treatment device for powder material moldings, aiming to improve the healing effect of defects such as pores and cracks inside the material.

[0013] Referring to FIG. 1 , it is a schematic diagram of the internal structure of an ultrasonic-assisted temperature-pressing and aging treatment device for powder material forming parts according to an embodiment of the present application. As shown in FIG. 1 , the ultrasonic-assisted temperature-pressing and aging treatment device for powder material forming parts comprises: A temperature and pressure loading chamber 1, wherein the temperature and pressure loading chamber 1 comprises an upper head 3, an upper head sealing ring 4, a cavity 5, an ultrasonic vibrator sealing ring 6, a lower head sealing ring 8 and a lower head 9, wherein the upper head sealing ring 4 is arranged between the upper head 3 and the cavity 5, the ultrasonic vibrator sealing ring 6 is fixed in a groove of a milled plane on an outer wall of the cavity 5, and the lower head sealing ring 8 is arranged between the cavity 5 and the lower head 9; A temperature controller 2, wherein the temperature controller 2 is connected to the upper head 3 at a flange position; The piezoelectric ultrasonic vibrator 7 is connected to the milled surface of the outer wall of the cavity 5 at the flange position.

[0014] In this embodiment, the temperature and pressure loading chamber 1 includes an upper head 3, an upper head sealing ring 4, a cavity 5, an ultrasonic vibrator sealing ring 6, a lower head sealing ring 8 and a lower head 9. The temperature controller 2 is installed on the upper head 3, and the piezoelectric ultrasonic vibrator 7 is installed on the milling plane of the outer wall of the cavity 5. The cavity 5 and the upper head 3 and the lower head 9 are surrounded by a plurality of corresponding through holes for bolt connection. The upper head sealing ring 4 is placed in the groove at the top of the cavity 5, the ultrasonic vibrator sealing ring 6 is fixed in the groove of the milling plane of the outer wall of the cavity 5, and the lower head sealing ring 8 is placed in the groove at the bottom of the cavity 5. There are multiple piezoelectric ultrasonic vibrators 7, which are connected to the milled plane of the outer wall of the cavity 5 in a ring array. The piezoelectric ultrasonic vibrator 7 converts the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into a mechanical vibration signal of the same frequency and amplifies the amplitude to soften the powder material molded part, enhance the fluidity of the material inside the powder material molded part, so as to promote the creep of the powder material molded part. In addition, ultrasonic waves can induce ultrasonic cavitation effect in 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.

[0015] The specific working process is: the positive and negative electrode wires of the piezoelectric ultrasonic vibrator are connected to the positive and negative electrodes of the ultrasonic power supply, and the piezoelectric ultrasonic vibrators are in parallel relationship. Then, the upper head 3, the cavity 5, the lower head 9 and other parts are assembled, and the test piece is placed in the center of the bottom of the temperature and pressure loading cavity 1. The piezoelectric ultrasonic vibrator 7 converts the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into an ultrasonic frequency mechanical vibration signal, and transmits the ultrasonic wave to the liquid in the cavity 5 after amplifying the amplitude through the output rod 21. The ultrasonic wave softens the powder material molded part and enhances the fluidity of the material inside the powder material molded part to promote the creep of the powder material molded part. In addition, the ultrasonic wave will induce the 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.

[0016] Based on the above-mentioned ultrasonic-assisted temperature-pressing and aging treatment device for powder material forming parts, this application provides the following examples of specific implementation methods. Under the premise of not contradicting each other, the various examples can be combined arbitrarily to form a new ultrasonic-assisted temperature-pressing and aging treatment device for powder material forming parts. It should be understood that the new ultrasonic-assisted temperature-pressing and aging treatment device for powder material forming parts formed by the combination of any examples should fall within the protection scope of this application.

[0017] refer to Figures 1 to 3 , Figure 1 1 is a schematic diagram of the internal structure of an ultrasonic-assisted temperature-pressing aging treatment device for powder material forming parts proposed in one embodiment of the present application. Figure 2 is a schematic diagram of the structure of the upper head 3 proposed in an embodiment of the present application, Figure 3is a schematic diagram of the structure of the cavity 5 proposed in an embodiment of the present application, such as Figures 1 to 3 As shown, in a feasible embodiment, the upper head 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, and the upper head sealing ring 4 is placed in the top groove of the cavity 5.

[0018] In this embodiment, the flange on the temperature controller 2 is connected to the upper head 3 by bolts through the non-through threaded hole on the upper head 3, and the hydraulic oil can be injected into the temperature and pressure loading chamber 1 through the oil inlet on the upper head 3.

[0019] refer to Figures 3 to 5 , Figure 4 is a schematic diagram of the structure of a piezoelectric ultrasonic vibrator 7 proposed in an embodiment of the present application, Figure 5 : is a schematic diagram of the structure of the lower head 9 proposed in an embodiment of the present application. In a feasible implementation manner, there are multiple piezoelectric ultrasonic vibrators 7 and ultrasonic vibrator sealing rings 6. Each of the piezoelectric ultrasonic vibrators 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 plane of the outer wall of the cavity 5. Each of the ultrasonic vibrator sealing rings 6 is fixed in a groove of the milled plane of the outer wall of the cavity 5.

[0020] In the present embodiment, there are multiple piezoelectric ultrasonic vibrators 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 milled plane of the outer wall of the cavity 5. Specifically, a plurality of through holes matching the output rod 21 are provided on the milled plane of the outer wall of the cavity 5, and the plurality of through holes are evenly distributed in a circular array. The output rod 21 passes through the through holes on the milled plane 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 plane of the outer wall of the cavity 5 by bolts. The piezoelectric transducer 22 It is capable of converting the ultrasonic frequency electrical oscillation signal input by the ultrasonic power supply into a mechanical vibration signal of the same frequency, and amplifying the amplitude through the output rod 21 and acting on the powder material molding, so as to soften the powder material molding, enhance the fluidity of the material inside the powder material molding, promote the creep of the powder material molding, and effectively heal the fine pores and cracks inside the loaded powder material molding, thereby achieving the purpose of improving the physical properties and safety reliability of the powder material molding.

[0021] In a feasible implementation, an ultrasonic vibrator 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 head sealing ring 8 is provided between the bottom of the cavity 5 and the lower head 9;

[0022] It should be understood that although the preferred embodiments of the present application have been described in the present application specification, once the technical personnel in the field know the basic creative concept, other changes and modifications can be made to these embodiments. Therefore, the attached claims are intended to be interpreted as including the preferred embodiment and all changes and modifications falling within the scope of the present application. Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0023] The above is a detailed introduction to an ultrasonic-assisted temperature-pressing and aging treatment device for powder material molding provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An ultrasonic-assisted temperature-pressing aging treatment device for powder material forming parts, characterized in that: The invention comprises: a temperature and pressure loading chamber (1), wherein the temperature and pressure loading chamber (1) comprises an upper head (3), an upper head sealing ring (4), a chamber (5), an ultrasonic vibrator sealing ring (6), a lower head sealing ring (8) and a lower head (9), wherein the upper head sealing ring (4) is arranged between the upper head (3) and the chamber (5), the ultrasonic vibrator sealing ring (6) is fixed in a groove of a milled plane on an outer wall of the chamber (5), and the lower head sealing ring (8) is arranged between the chamber (5) and the lower head (9); a temperature controller (2), wherein the temperature controller (2) is connected to the upper head (3) at a flange position; and a piezoelectric ultrasonic vibrator (7), wherein the piezoelectric ultrasonic vibrator (7) is connected to the milled plane on the outer wall of the chamber (5) at a flange position.

2. The device for ultrasonic-assisted temperature-pressing aging treatment of powder material forming parts according to claim 1 is characterized in that: The upper head (3) is provided with a plurality of through holes and non-through threaded holes around its periphery, including a hydraulic oil inlet. The temperature controller (2) is connected to the upper head (3) via bolts. The upper head (3) is connected to the cavity (5) via bolts. The upper head sealing ring (4) is arranged in a top groove of the cavity (5).

3. The device for ultrasonic-assisted temperature-pressing aging treatment of powder material forming parts according to claim 1 is characterized in that: The cavity (5) is a cylindrical cavity, and a plurality of evenly distributed milling planes are provided on the outer wall of the cavity (5); a through hole, a groove, and a plurality of threaded holes are provided on the milling plane of the cavity (5).

4. The device for ultrasonic-assisted temperature-pressing aging treatment of powder material forming parts according to claim 1, characterized in that: There are a plurality of piezoelectric ultrasonic vibrators (7), each of which comprises 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 temperature-pressing aging treatment device for powder material forming parts according to claim 1 is characterized in that: There are a plurality of ultrasonic vibrator sealing rings (6), and each of the ultrasonic vibrator sealing rings (6) is arranged in a groove on a milled surface of the outer wall of the cavity (5).

6. The device for ultrasonic-assisted temperature-pressing aging treatment of powder material forming parts according to claim 4 is characterized in that: The output rod (21) is provided with a flange, and the flange on the output rod (21) is connected to the milled surface of the cavity (5) via bolts.

7. The ultrasonic-assisted temperature-pressing aging treatment device for powder material forming parts according to claim 1 is characterized in that: The lower head (9) is provided with a plurality of through holes around its periphery. The lower head (9) is connected to the cavity (5) via bolts. The lower head sealing ring (8) is arranged in a bottom groove of the cavity (5).

Images