Device for industrial efficient mass production of high-purity fine-grain high-temperature alloy

Abstract

The invention discloses a device for industrial efficient mass production of high-purity fine-grain high-temperature alloy, which comprises a flow guide mechanism and a forming mechanism, the flow guide mechanism comprises a chute, the forming mechanism comprises a mold vehicle, electromagnetic field generators are symmetrically arranged on the two sides of the mold vehicle, and the two electromagnetic field generators are matched to form a rotating magnetic field; a plurality of groups of mold pipes which are positioned between the two electromagnetic field generators, positioned below the chute and matched with the chute are arranged on the mold vehicle in the length direction of the mold vehicle; and an ultrasonic vibration assembly is arranged on one side of each mold pipe. The process of nucleation-growth-fracture-nucleation can be continuously carried out in the solidification process of alloy liquid, finally solidification is completed, finer and more uniform high-temperature alloy ingots are obtained, the problems that mass production high-temperature alloy casting efficiency is low, alloy grains are coarse and large and the like can be solved, and the mass production alloy performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature alloy material manufacturing, and in particular to a device for industrially and efficiently mass-producing high-purity fine-grained high-temperature alloys. Background Art

[0002] In the field of industrial mass production of high-temperature alloy master alloys, smelting equipment and process solutions play a decisive role in key material parameters such as oxygen and nitrogen content, density and defect incidence. With the continuous iteration and update of process equipment, problems such as macro segregation and coarse grains in traditional industrial ingots have become more prominent under advanced processes such as new die forging, wire drawing and fast melt casting, leading to more defects such as cracking. Therefore, there are relatively few mass production applications in the industry that can effectively solve these problems.

[0003] Current technological improvements are mostly focused on the optimization of experimental furnace types, such as improving the alloy structure by inserting an ultrasonic device at the casting liquid surface. Studies have shown that the use of ultrasonic treatment can significantly change the solidification process of the alloy, refine the grains, and improve the grain morphology, thereby greatly improving the performance of the alloy. However, most current research is limited to applying ultrasound in a single direction in the experimental furnace, while industrial mass production equipment usually adopts the method of directly casting into the mold after smelting, lacking intermediate processing steps. The casting temperature of the industrial mass production furnace is much higher than that of the experimental furnace, resulting in severe burning and thermal corrosion of the rod head when the ultrasonic tool head directly contacts the alloy liquid, making it difficult to maintain stable operating conditions, and is not suitable for industrial mass production applications. In addition, ultrasonic treatment is only performed before flowing into the mold tube, and the time from the molten state to solidification in the mold tube is relatively long, which weakens the gain effect of ultrasonic treatment and has limited effects on nucleation, rupture and shrinkage compensation during the solidification process of the alloy. Summary of the invention

[0004] The purpose of the present invention is to provide an industrial device for mass-producing high-purity fine-grained high-temperature alloys with high efficiency, which can solve the problems of low casting efficiency and coarse alloy grains in mass-produced high-temperature alloys and improve the performance of mass-produced alloys.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an industrial and efficient device for mass production of high-purity, fine-grained, high-temperature alloys, comprising a flow guide mechanism and a forming mechanism, the flow guide mechanism comprising a chute, the forming mechanism comprising a mold car, electromagnetic field generators are symmetrically provided on both sides of the mold car, the two electromagnetic field generators cooperate to form a rotating magnetic field, the mold car is provided with a plurality of groups of mold tubes located between the two electromagnetic field generators and below the chute and cooperating with the mold tubes along its length direction, and an ultrasonic vibration component is provided on one side of the mold tube.

[0006] A further improvement of the present invention is that the mold tubes are provided with two groups, each group of mold tubes includes a plurality of mold tubes arranged along the length direction of the mold vehicle, the two groups of mold tubes are arranged in parallel, and the ultrasonic vibration component is arranged between the two groups of mold tubes.

[0007] A further improvement of the present invention is that a support plate is provided between the two groups of mold tubes, the ultrasonic vibration components are arranged on the support plate, the number of the ultrasonic vibration components is twice the number of mold tubes, each mold tube corresponds to two ultrasonic vibration components and the two ultrasonic vibration components are arranged at intervals.

[0008] A further improvement of the present invention is that the ultrasonic vibration assembly includes an ultrasonic transducer, a water-cooled circulating ultrasonic amplitude transformer and an ultrasonic tool rod, the two ends of the ultrasonic amplitude transformer are respectively connected to the ultrasonic transducer and the ultrasonic tool rod, and the ultrasonic tool rod is in contact with the mold tube and transfers the vibration to the mold tube.

[0009] A further improvement of the present invention is that a mounting plate is provided at the bottom of the chute, and an ultrasonic vibration component is also provided on the mounting plate, and an ultrasonic tool rod of the ultrasonic vibration component contacts the chute and transfers vibration to the chute.

[0010] A further improvement of the present invention is that a diverter plate is provided above the mold tube, and a guide bridge is obliquely provided above the interval between adjacent diverter plates and located above the two.

[0011] A further improvement of the present invention is that the chute includes a trough body, a filter plate is provided in the trough body along its width direction, an inclined surface is provided on the inner bottom surface of the trough body, two groups of guide members are provided in sequence on the inclined surface along the flow direction of the alloy liquid, each group of guide members includes at least one curved guide protrusion arranged along the width direction of the trough body, a diverter protrusion is provided on the inner bottom surface of the trough body along its length direction, the two sides of the diverter protrusion are at an equal distance from the two side walls of the trough body and one end is connected to the trough body, and the other end is connected to the lowermost curved guide protrusion on the inclined surface, and pouring gates are symmetrically provided on both sides of the diverter protrusion, and the two pouring gates correspond to two groups of mold tubes.

[0012] A further improvement of the present invention is that the two groups of guide members are divided into a first guide member and a second guide member in sequence along the flow direction of the alloy liquid, the curved guide protrusion of the second guide member includes a middle section and diversion sections located on both sides of the middle section, and the cross-section of the diversion section from one end away from the middle section to one end close to the middle section gradually increases until it is consistent with the cross-section of the middle section.

[0013] A further improvement of the present invention is that the cross section of one end of the diverter section away from the middle section is consistent with the cross section of the curved guide protrusion of the first guide member, and the cross section of the middle section is larger than the cross section of the curved guide protrusion of the first guide member.

[0014] A further improved solution of the present invention is that each group of flow guide members includes two curved flow guide protrusions.

[0015] The beneficial effects of the present invention are: The present invention arranges an ultrasonic vibration component on one side of the mold tube. The ultrasonic tool rod of the ultrasonic vibration component contacts the outer wall of the mold tube and transmits the vibration to the mold tube. It can continuously vibrate the alloy liquid during solidification, so that the alloy continuously undergoes a "nucleation-growth-rupture-nucleation" process during the solidification process, and finally solidifies to obtain a finer and more uniform high-temperature alloy ingot, solve the problem of coarse alloy grains, and improve the performance of mass-produced alloys.

[0016] In the present invention, each mold tube corresponds to two ultrasonic vibration components and the two ultrasonic vibration components are spaced apart. The same frequency operation of the ultrasonic vibration components spaced apart above and below can achieve phase interference enhancement, thereby enhancing the ultrasonic cavitation effect and reducing the attenuation of ultrasonic waves on the medium.

[0017] The present invention forms a rotating magnetic field through an electromagnetic field generator to assist the alloy liquid solidification process to reduce segregation and form an equiaxed crystal alloy structure. The ultrasonic vibration component and the electromagnetic field generator act on the mass production alloy bar module at the same time, and multiple effects occur simultaneously, so that the alloy liquid slag floats quickly, further forming a more uniform equiaxed crystal structure and reducing macro segregation.

[0018] The present invention is provided with multiple flow guides, and the curved flow guide protrusions of the flow guides can increase the flow path of the alloy liquid, effectively improve the steady flow performance of the alloy casting, expand the flow contact area of ​​the alloy liquid, and then increase the slag floating rate and improve the alloy purity.

[0019] The present invention is provided with two pouring ports, and the alloy liquid can be diverted by cooperating with the diverter protrusion and the diverter section. The distances between the two sides of the diverter protrusion and the tank wall are the same, which can ensure that the fluid or material is evenly divided into two or more streams after entering the tank, thereby improving the efficiency and quality of subsequent processing, and can process two diverter plates and corresponding molds at the same time, significantly improving the output per unit time.

[0020] The filter plate of the present invention is tilted, which effectively ensures that the alloy liquid completes the initial slag filtration and flows smoothly into the arched flow channel, thereby improving the steady flow of the chute alloy into the diverter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the chute structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the structural cross-section of the present invention.

[0024] Figure 4 It is a schematic top view of the structure of the present invention.

[0025] In the figure, 1-chute, 2-mold car, 3-electromagnetic field generator, 4-mold tube, 5-ultrasonic vibration component, 6-support plate, 7-mounting plate, 8-trough body, 9-filter plate, 10-inclined surface, 11-curved guide protrusion, 12-diverter protrusion, 13-pouring gate, 14-middle section, 15-diverter section, 16-diverter plate, 17-guide bridge, 18-slot, 19-step surface. DETAILED DESCRIPTION

[0026] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0027] Example 1: Combination Figures 1 to 4 It can be seen that an industrial device for mass-producing high-purity fine-grained high-temperature alloys is characterized in that it includes a flow guide mechanism and a molding mechanism, the flow guide mechanism includes a chute 1, the molding mechanism includes a mold car 2, and electromagnetic field generators 3 are symmetrically provided on both sides of the mold car 2. The two electromagnetic field generators 3 cooperate to form a rotating magnetic field, and the mold car 2 is provided with a plurality of groups of mold tubes 4 located between the two electromagnetic field generators 3 and below the chute 1 and cooperating with them along its length direction, and an ultrasonic vibration component 5 is provided on one side of the mold tube 4.

[0028] Preferably, the mold tubes 4 are provided with two groups, each group of mold tubes 4 includes a plurality of mold tubes 4 arranged along the length direction of the mold vehicle 2 , the two groups of mold tubes 4 are arranged in parallel, and the ultrasonic vibration assembly 5 is arranged between the two groups of mold tubes 4 .

[0029] A support plate 6 is provided between the two groups of mold tubes 4, and the ultrasonic vibration components 5 are arranged on the support plate 6. The number of the ultrasonic vibration components 5 is twice the number of the mold tubes 4. Each mold tube 4 corresponds to two ultrasonic vibration components 5 and the two ultrasonic vibration components 5 are arranged at intervals.

[0030] The ultrasonic vibration component 5 is a conventional ultrasonic vibration component in the prior art that can be applied to mold vibration, preferably, including an ultrasonic transducer, a water-cooled circulating ultrasonic horn and an ultrasonic tool rod, the two ends of the ultrasonic horn are respectively connected to the ultrasonic transducer and the ultrasonic tool rod, the ultrasonic tool rod is in contact with the mold tube and transfers the vibration to the mold tube 4. The ultrasonic transducer is a piezoelectric ceramic transducer, which can provide high-frequency mechanical vibration, and then the ultrasonic horn can convert the small amplitude generated by the ultrasonic transducer into a large amplitude, which is transferred to the ultrasonic tool rod and acts on the mold tube 4. Preferably, the working frequency of the ultrasonic vibration component 5 is 33kHZ.

[0031] A mounting plate 7 is provided at the bottom of the chute 1 , and an ultrasonic vibration component 5 is also provided on the mounting plate 7 . The ultrasonic tool rod of the ultrasonic vibration component 5 contacts the chute 1 and transfers the vibration to the chute 1 .

[0032] A diverter plate 16 is provided above the mold tube 4, and a guide bridge 17 is provided above the interval between adjacent diverter plates 16. When viewed from above, the guide bridge 17 and the pouring port 13 are located on the same straight line, and the guide bridge 17 can receive the alloy liquid flowing out of the chute 1 during the movement of the mold vehicle 2, and guide the alloy liquid to the next group of mold tubes 4 through its inclined setting.

[0033] The chute 1 includes a trough body 8, in which a filter plate 9 is arranged along the width direction of the trough body 8, an inclined surface 10 is arranged on the inner bottom surface of the trough body 8, and two groups of guide members are arranged in sequence on the inclined surface 10 along the flow direction of the alloy liquid, each group of guide members includes at least one curved guide protrusion 11 arranged along the width direction of the trough body, and a diverter protrusion 12 is arranged on the inner bottom surface of the trough body 8 along the length direction, and the distance between the two sides of the diverter protrusion 12 and the two side walls of the trough body 8 is equal, and one end of the diverter protrusion 12 is connected to the trough body 8, and the other end is connected to the curved guide protrusion 11 at the lower end of the inclined surface 10, and pouring gates 13 are symmetrically arranged on both sides of the diverter protrusion 12, and the two pouring gates 13 correspond to two groups of mold tubes 4, so that the two groups of mold tubes 4 can be poured at the same time.

[0034] The two groups of guide members are divided into a first guide member and a second guide member in sequence along the flow direction of the alloy liquid. The curved guide protrusion 11 of the second guide member includes a middle section 14 and diverter sections 15 located on both sides of the middle section 14. The cross-section of the diverter section 15 gradually increases from one end away from the middle section 14 to the end close to the middle section 14 until it is consistent with the cross-section of the middle section 14.

[0035] The cross section of one end of the diverter section 15 away from the middle section 14 is consistent with the cross section of the curved guide protrusion 11 of the first guide member, and the cross section of the middle section 14 is larger than the cross section of the curved guide protrusion 11 of the first guide member.

[0036] Each group of flow guides includes two curved flow guide protrusions 11. Preferably, at least one step surface 19 is coaxially provided in the pouring port 13, and a filter screen is provided on the step surface. Optionally, two step surfaces are provided in the pouring port 6, and two filter screens are installed, and the through hole diameter of the filter screen located at the bottom is lower than the filter plate located at the top. Preferably, the pouring port 6 is a pouring port with a taper.

[0037] Preferably, two opposite side walls in the tank body are provided with clamping grooves 18 , and the filter plate 9 is clamped and fixed between the two clamping grooves 18 and the lower end thereof abuts against the inclined surface 10 .

[0038] Preferably, the inclination angle of the inclined surface is 12-15°, and the filter plate is inclined and its inclination angle is 65-70°. The amount of stored steel is effectively reduced. The filter plate 2 is inclined and its inclination angle is 65-70°. The filter plate is fixed between the two slots and its lower end abuts against the inclined surface. The filter plate can be disassembled and replaced as needed.

[0039] Preferably, one end of the flow diversion protrusion is embedded in the curved flow guide protrusion.

[0040] The working principle of the device for industrial efficient mass production of high-purity fine-grained high-temperature alloys provided by the invention is as follows: when in use, first move the two frontmost groups of mold tubes 4 on the mold car 2 to just below the pouring port 13 of the chute 1. Before casting, all the mold tubes 4 are preheated and insulated, and the chute 1 is preheated and roasted simultaneously. Start the ultrasonic vibration component 5 and the two electromagnetic field generators 3 below the chute 1 and on one side of the mold tube 4. The two electromagnetic field generators 3 form a rotating magnetic field, and then pour the alloy liquid into the trough body 8. After being filtered by the filter plate 9, the alloy liquid flows along the inclined surface 10, and passes through the curved guide protrusion 11 to increase the flow path, effectively improving the steady flow performance of the alloy casting, expanding the flow contact area of ​​the alloy liquid, and then improving the slag floating rate. The alloy liquid moves forward steadily, and when it reaches the second guide member, it is initially diverted by the diversion section 15, and then diverted into two streams by the diversion protrusion 12, and flows along the diversion protrusion 1 2 flows to the two pouring ports 13 on both sides respectively, and then is injected into the diverter plate 16 above the two groups of mold tubes 4, and the alloy liquid is diverted to each molding cavity of the mold tube 4 through the diverter plate 16. When the pouring of the two mold tubes 4 in the front is completed, the mobile mold vehicle 2 moves the subsequent two groups of mold tubes 4 to just below the pouring port 13 of the chute 1. In this process, the alloy liquid generated by the continuous pouring of the chute 1 that has not entered the previous group of mold tubes 4 can flow into the subsequent two groups of mold tubes 4 along the guide bridge 17, and the above process is repeated until all the mold tubes 4 on the mold vehicle 2 are poured.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. An industrial and efficient mass production device for high-purity fine-grained high-temperature alloys, characterized in that: The invention comprises a flow guiding mechanism and a forming mechanism, wherein the flow guiding mechanism comprises a chute (1), and the forming mechanism comprises a mold vehicle (2). Electromagnetic field generators (3) are symmetrically arranged on both sides of the mold vehicle (2), and the two electromagnetic field generators (3) cooperate with each other to form a rotating magnetic field. The mold vehicle (2) is provided with a plurality of groups of mold tubes (4) located between the two electromagnetic field generators (3) and below the chute (1) and cooperating with the two electromagnetic field generators along its length direction, and an ultrasonic vibration component (5) is arranged on one side of the mold tube (4).

2. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 1 is characterized in that: The mold tubes (4) are provided in two groups, each group of mold tubes (4) comprises a plurality of mold tubes (4) arranged along the length direction of the mold vehicle (2), the two groups of mold tubes (4) are arranged in parallel, and the ultrasonic vibration component (5) is arranged between the two groups of mold tubes (4).

3. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 2, characterized in that: A support plate (6) is provided between the two groups of mold tubes (4), the ultrasonic vibration components (5) are arranged on the support plate (6), the number of the ultrasonic vibration components (5) is twice the number of the mold tubes (4), each mold tube (4) corresponds to two ultrasonic vibration components (5), and the two ultrasonic vibration components (5) are arranged at intervals.

4. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 1 or 3, characterized in that: The ultrasonic vibration component (5) comprises an ultrasonic transducer, a water-cooled circulating ultrasonic horn and an ultrasonic tool rod, the two ends of the ultrasonic horn are respectively connected to the ultrasonic transducer and the ultrasonic tool rod, and the ultrasonic tool rod is in contact with the mold tube and transfers the vibration to the mold tube (4).

5. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 4, characterized in that: A mounting plate (7) is provided at the bottom of the chute (1), and an ultrasonic vibration component (5) is also provided on the mounting plate (7). The ultrasonic tool rod of the ultrasonic vibration component (5) contacts the chute (1) and transfers vibration to the chute (1).

6. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 1, characterized in that: A flow distribution plate (16) is provided above the mold tube (4), and a flow guide bridge (17) located above adjacent flow distribution plates (16) is provided obliquely above the interval between the adjacent flow distribution plates (16).

7. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 2, characterized in that: The chute (1) comprises a trough body (8), wherein a filter sheet (9) is arranged inside the trough body (8) along its width direction, an inclined surface (10) is arranged on the inner bottom surface of the trough body (8), two groups of flow guides are arranged on the inclined surface (10) in sequence along the flow direction of the alloy liquid, each group of flow guides comprises at least one curved flow guide protrusion (11) arranged along the width direction of the trough body, a flow diversion protrusion (12) is arranged on the inner bottom surface of the trough body (8) along its length direction, the distance between the two sides of the flow diversion protrusion (12) and the two side walls of the trough body (8) is equal, one end of the flow diversion protrusion (12) is connected to the trough body (8), and the other end is connected to the curved flow diversion protrusion (11) at the lower end of the inclined surface (10), and pouring ports (13) are symmetrically arranged on both sides of the flow diversion protrusion (12), and the two pouring ports (13) correspond to the two groups of mold tubes (4).

8. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 7, characterized in that: The two groups of flow guides are divided into a first flow guide and a second flow guide in sequence along the alloy liquid flow direction; the curved flow guide protrusion (11) of the second flow guide comprises a middle section (14) and flow diversion sections (15) located on both sides of the middle section (14); the cross section of the flow diversion section (15) gradually increases from one end away from the middle section (14) to one end close to the middle section (14) until it is consistent with the cross section of the middle section (14).

9. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 8, characterized in that: The cross-section of one end of the flow diversion section (15) away from the middle section (14) is consistent with the cross-section of the curved flow guide protrusion (11) of the first flow guide member, and the cross-section of the middle section (14) is larger than the cross-section of the curved flow guide protrusion (11) of the first flow guide member.

10. The device for industrially efficiently mass-producing high-purity fine-grained high-temperature alloy according to claim 7, characterized in that: Each group of flow guide members comprises two curved flow guide protrusions (11).

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