CN203751313U - Ultrasonic vibration-based semi-solid metal powder forming device - Google Patents
Ultrasonic vibration-based semi-solid metal powder forming device Download PDFInfo
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- CN203751313U CN203751313U CN201420139245.8U CN201420139245U CN203751313U CN 203751313 U CN203751313 U CN 203751313U CN 201420139245 U CN201420139245 U CN 201420139245U CN 203751313 U CN203751313 U CN 203751313U
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Abstract
The utility model discloses an ultrasonic vibration-based semi-solid metal powder forming device. A forming sleeve is connected with a bottom plate; a support plate is arranged over the forming sleeve through a support rod; a crucible is arranged on the support plate; one end of an ultrasonic amplitude-change pole is connected with a lifting plate, and the other end of the ultrasonic amplitude-change pole is tightly contacted with the upper surface of the crucible. Semi-solid metal powder is put into the crucible, and the height of the lifting plate is adjusted till the ultrasonic amplitude-change pole is firmly contacted with the upper surface of the crucible. An electromagnetic induction coil is used for heating the crucible, and ultrasonic vibration is applied to the crucible in an induction heating process. When the semi-solid metal powder reaches a solid-liquid coexisting state, the semi-solid metal powder is introduced into the forming sleeve, and the semi-solid metal powder is stamped by pushing a punch to obtain a part. By adopting the ultrasonic vibration-based semi-solid metal powder forming device, grains are effectively prevented from growing and are refined, the microstructure uniformity and density of a blank are improved, and the mechanical performance of the formed part can be improved; near-net forming can be realized, subsequent treatment is reduced, the production cost is lowered, and the production efficiency is increased.
Description
Technical field
The utility model relates to metal dust micro-forming device, especially relates to a kind of semi-solid-state metal powder forming device based on ultrasonic vibration.
Background technology
Shaping of metal powders is the advanced manufacturing technology of a kind of energy-conservation, material-saving, efficient, near-net-shape, of low pollution, in the modern high technology fields such as superconductor, nano material, biological engineering material, superhard material, is widely used.Powder metallurgy is as raw material, through the technical process of the goods such as shaping and sintering manufacture metal material, composite and functional material with metal dust (or mixture of metal dust and non-metal powder).The product range of application that powder metallurgic method is manufactured is very extensive, and from standard machinery to precision instrument, from hardware & tools to big machinery, from electronics industry to motor manufacture, the figure of powder technology all can be seen in field from civilian industry to war industry etc.Powder metallurgical technique process mainly comprises the processes such as dress powder, compacting, sintering and post processing, and its main feature has: can produce the material with property that cannot survive by common smelting process, as magnetic material, superconductor, thermoelectric material.Hydrogen storage material etc.; The performance of product is generally superior than common smelting process; Can realize near-net-shape and automatic batch production, save metal material, reduce production costs etc.But the shortcoming that conventional powder is shaped is that complex process, compactness are poor, the poor-performing of product, and pressed compact may be damaged in handling process, affects the quality of final formation of parts.
Semi-solid-state shaping is a kind of technical process between casting and between forging of rising in recent years, is the general name of semi-molten or semi-solid metal for the solid-liquid process that forms processing.The shortcomings such as splash when semi-solid metal forming technology can be avoided liquid die casting, turbulent flow and volume gas, compare with solid-state forging simultaneously, are easier to form minutiae, and plastic force is little, saves the energy.Therefore, compare with traditional shaping industry, semi-solid-state shaping has advantages of a series of outstanding, can be used for producing complex-shaped, high-performance and high-precision miniature parts.Semisolid powder forming is a kind of new manufacture that prior powder metallurgy method and semi-solid state forming technique are combined.Chinese invention patent (application number 201210013443.3) discloses a kind of semi-solid-state metal powder forming device for two-way compacting, this invention combines semi-solid state forming technique and powder forming, can realize near-net-shape, reduce subsequent treatment, reduce production costs.
The application of ultrasonic vibration in semi-solid-state shaping is until eighties of last century just has scholar to start to explore the nineties.Gabathuler etc. (No. 5186236th, United States Patent (USP)) are incorporated into ultrasonic vibration in semisolid continuous casting first, have obtained the blank of the tiny rounding of primary crystal.Ultrasonic vibration can not only crystal grain thinning or spheric grain, also can remove the gas in blank, improve compactness and the uniformity of blank.The report of the current apparatus and method about the micro-shaping of ultrasonic vibration assistant metal is a lot, but also about ultrasonic vibration, is applied in the report in semi-solid-state metal powder forming.
Summary of the invention
The purpose of this utility model is to provide a kind of semi-solid-state metal powder forming device based on ultrasonic vibration, not only powder forming and semi-solid state forming technique are combined, also ultrasonic vibration is applied in semi-solid-state metal powder second heating process, effective inhibiting grain growth, crystal grain thinning, improve blank microhomogeneity and compactness, can improve the mechanical performance of formation of parts.
The utility model solves the technical scheme that its technical problem adopts:
The shaping sleeve lower end welding forming cover tube end plate of horizontal positioned, the cover tube end plate that is shaped connects with base, gripper shoe by the support bar on four jiaos of bases be arranged on shaping sleeve directly over, one end of passage is connected with gripper shoe, the other end of passage is connected with shaping sleeve, crucible is placed in gripper shoe, beveled end outlet in crucible is communicated with the passage in gripper shoe, stopper rod and thermocouple insert in crucible from crucible upper end respectively, stopper rod and the coaxial installation of beveled end outlet, crucible is around with induction coil, one end of ultrasonic amplitude transformer is pressed in crucible upper surface, the other end of ultrasonic amplitude transformer connects with one end of lifter plate by ring flange, ultrasonic transducer is coaxially arranged on the other end of ultrasonic amplitude transformer, the other end and the elevating lever of lifter plate are slidably connected, opening is equipped with drift in the hole of the shaping sleeve of elevating lever one end, shaping quill is to the first heating rod and the first thermocouple are housed, drift is radially equipped with the second heating rod and the second thermocouple, ultrasonic transducer is connected with ultrasonic generator, induction coil, the first heating rod, the second heating rod, the first thermocouple is all connected with temperature controller with the second thermocouple.
Described ultrasonic transducer 1 is piezoelectric transducer, and piezoceramic material is PZT-4, the special-purpose generator of ultrasonic equipment that described ultrasonic generator 3 is model SY-2000.
The beneficial effect the utlity model has is:
This invention is applied to ultrasonic vibration in semi-solid-state metal powder second heating process, effective inhibiting grain growth, and crystal grain thinning, improves blank microhomogeneity and compactness, can improve the mechanical performance of formation of parts; Can realize near-net-shape, reduce subsequent treatment, reduce production costs, enhance productivity.
Accompanying drawing explanation
Fig. 1 is assembly structure schematic diagram of the present utility model (eddy-current heating process).
Fig. 2 is assembly structure schematic diagram of the present utility model (semisolid powder stream goes out process).
Fig. 3 is assembly structure schematic diagram of the present utility model (stamping process).
In figure: 1. ultrasonic transducer, 2. ring flange, 3. ultrasonic generator, 4. ultrasonic amplitude transformer, 5. thermocouple, 6. stopper rod, 7. crucible, 8. temperature controller, 9. induction coil, 10. semi-solid-state metal powder, 11. nuts, 12. gripper shoes, 13. support bars, 14. bases, 15. screws, 16. first thermocouples, 17. first heating rods, 18. shaping sleeves, 19. passages, 20. are shaped overlaps tube end plate, 21. drifts, 22. second heating rods, 23. second thermocouples, 24. elevating levers, 25. lifter plates, 26. screws.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model is at the shaping sleeve 18 lower end welding forming cover tube end plates 20 of horizontal positioned, the cover tube end plate 20 that is shaped connects with base 14 by screw, base is connected with ground with screw 15, gripper shoe 12 by the support bar on 14 4 jiaos of bases be arranged on shaping sleeve 18 directly over, post upper processing step and screw thread, with nut 11 fixed support plates 12.One end of passage 19 is connected with gripper shoe 12, the other end is connected with shaping sleeve 18, the crucible 7 that semi-solid-state metal powder 10 is housed is placed in gripper shoe 12, beveled end outlet in crucible 7 is communicated with the passage 19 in gripper shoe 12, crucible used 7 bottoms are the structures that tilt, and can accelerate the semi-solid-state metal powder rate of outflow.Stopper rod 6 and thermocouple 5 insert in crucible 7 from crucible 7 upper ends respectively, stopper rod 6 and the coaxial installation of crucible 7 beveled end outlet, crucible 7 is around with induction coil 9, one end of ultrasonic amplitude transformer 4 is pressed in crucible 7 upper surfaces, the other end of ultrasonic amplitude transformer 4 connects with screw 26 with one end of lifter plate 25 by ring flange 2, ultrasonic transducer 1 is coaxially arranged on the other end of ultrasonic amplitude transformer 4, the other end of lifter plate 25 and elevating lever 24 are slidably connected, opening is equipped with drift 21 in the hole of the shaping sleeve 18 of elevating lever 24 one end, and drift 21 is arranged on stamping machine.Shaping sleeve 18 is axially equipped with the first heating rod 17 and the first thermocouple 16, drift 21 is radially equipped with the second heating rod 22 and the second thermocouple 23, ultrasonic transducer 1 is connected with ultrasonic generator 3, and induction coil 9, the first heating rod 17, the second heating rod 22, the first thermocouple 16 are all connected with temperature controller 8 with the second thermocouple 23.
Described ultrasonic transducer 1 is piezoelectric transducer, and piezoceramic material is PZT-4, the special-purpose generator of ultrasonic equipment that described ultrasonic generator 3 is model SY-2000.
As shown in Figure 1, Figure 2 and Figure 3, a kind of specific implementation process of doing solid metallic powder forming method based on ultrasonic vibration the utility model proposes is as follows:
(1) as shown in Figure 1, fall the outlet that stopper rod is blocked crucible, the semi-solid-state metal powder under normal temperature is imported in crucible, by regulating lifter plate height, make ultrasonic amplitude transformer and crucible upper surface close contact;
(2) as shown in Figure 1, the first heating rod 17 and the second heating rod 22 are set in building mortion respectively to shaping sleeve 18 and drift 21 heating, the first thermocouple 16 and the second thermocouple 23 real-time temperature of measuring shaping sleeve 18 and drift 21 respectively is also set simultaneously in device.Thereby the first heating rod 17 and the first thermocouple 16 and the second heating rod 22 and the second thermocouple 23 are connected to multi-channel high-accuracy temperature controller 8 and form two closed loop thermal control systems, by setting the relevant parameters such as the control temperature of multichannel temperature controller 8 and control strategy, can realize the real-time feedback control to shaping sleeve 18 and drift 21 temperature.The material that shaping sleeve 18 and drift 21 adopt is hot die steel H13.Before the micro-shaping of semi-solid-state metal powder, shaping sleeve 18 and drift 21 are carried out preheating and maintain the temperature at 300 ℃ of left and right, this is because in the micro-forming process of semi-solid-state metal powder, if comparing too low meeting with the temperature of semi-solid-state metal powder 10, the temperature of shaping sleeve 18 and drift 21 cause semi-solid-state metal powder temperature in forming process to decline too fast, semi-solid-state metal powder is condensed rapidly, thereby affect the forming effect of semi-solid-state metal powder micro-structural; If temperature is too high, can easily there is weldbonding phenomenon, accelerate die wear.Therefore the temperature of controlling shaping sleeve 18 and drift 21 is 300 ℃ of left and right;
(3) as shown in Figure 1, at shaping sleeve 18 and drift 21, complete after preheating, with the solid metallic powder 10 that induction coil 9 is opposite in crucible 7, heat, with thermocouple 5, measure powder temperature, the fraction solid of control metal dust or liquid phase fraction are to solid-liquid district.In heating process, crucible is applied to ultrasonic vibration (power: 200W, frequency: 20KHz, amplitude: 10 μ m), because ultrasonic amplitude transformer 4 is by lowering or hoisting gear and crucible close contact, thereby guaranteed effective transmission of ultrasonic vibrational energy.In semi-solid-state metal powder heating process, apply ultrasonic vibration always, make solid state powder to accessing more uniform crystal grain in solid-liquid state conversion process and improving its compactness extent;
(4) as shown in Figure 2, when metal dust reaches solid-liquid state, mention stopper rod and make semi-solid-state metal powder enter into rapidly shaping sleeve by guide sleeve, when metal dust, all derive after crucible, stop eddy-current heating and stop applying ultrasonic vibration;
(5) as shown in Figure 3,, when semi-solid-state metal powder enters into after shaping sleeve completely, promote-side is worn the drift of fine structure feature and is applied forging and stamping load, completes the stamping process of semi-solid-state metal powder.
Claims (2)
1. the semi-solid-state metal powder forming device based on ultrasonic vibration, it is characterized in that: shaping sleeve (18) the lower end welding forming cover tube end plate (20) of horizontal positioned, the cover tube end plate (20) that is shaped connects with base (14), gripper shoe (12) by the support bar on (14) four jiaos of bases be arranged on shaping sleeve (18) directly over, one end of passage (19) is connected with gripper shoe (12), the other end is connected with shaping sleeve (18), crucible (7) is placed in gripper shoe (12), beveled end outlet in crucible (7) is communicated with the passage (19) in gripper shoe (12), stopper rod (6) and thermocouple (5) insert in crucible (7) from crucible (7) upper end respectively, stopper rod (6) and the coaxial installation of crucible (7) beveled end outlet, crucible (7) is around with induction coil (9), one end of ultrasonic amplitude transformer (4) is pressed in crucible (7) upper surface, the other end of ultrasonic amplitude transformer (4) connects with one end of lifter plate (25) by ring flange (2), ultrasonic transducer (1) is coaxially arranged on the other end of ultrasonic amplitude transformer (4), the other end of lifter plate (25) and elevating lever (24) are slidably connected, opening is equipped with drift (21) in the hole of the shaping sleeve (18) of elevating lever (24) one end, shaping sleeve (18) is axially equipped with the first heating rod (17) and the first thermocouple (16), drift (21) is radially equipped with the second heating rod (22) and the second thermocouple (23), ultrasonic transducer (1) is connected with ultrasonic generator (3), induction coil (9), the first heating rod (17), the second heating rod (22), the first thermocouple (16) is all connected with temperature controller (8) with the second thermocouple (23).
2. a kind of semi-solid-state metal powder forming device based on ultrasonic vibration according to claim 1, it is characterized in that: described ultrasonic transducer 1 is piezoelectric transducer, piezoceramic material is PZT-4, the special-purpose generator of ultrasonic equipment that described ultrasonic generator 3 is model SY-2000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139245.8U CN203751313U (en) | 2014-03-26 | 2014-03-26 | Ultrasonic vibration-based semi-solid metal powder forming device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420139245.8U CN203751313U (en) | 2014-03-26 | 2014-03-26 | Ultrasonic vibration-based semi-solid metal powder forming device |
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| CN203751313U true CN203751313U (en) | 2014-08-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909267A (en) * | 2014-03-26 | 2014-07-09 | 浙江大学 | Semisolid metal powder forming device and method based on ultrasonic vibration |
| CN109226720A (en) * | 2018-08-20 | 2019-01-18 | 江苏大学 | A kind of the semi-solid-state metal plastic processing method and device compound based on laser-impact and ultrasonic vibration |
| CN109365780A (en) * | 2018-12-06 | 2019-02-22 | 昆明理工大学 | A kind of preparation of Model For The Bush-axle Type Parts semi solid slurry and the integrated device of extrusion casint |
| CN109612812A (en) * | 2019-01-15 | 2019-04-12 | 张瑞华 | A kind of new metal material content detection thawing molding machine |
| CN113714504A (en) * | 2021-08-31 | 2021-11-30 | 东北大学 | Wear-resistant block with controllable metal matrix shrinkage rate and preparation device, method and application thereof |
-
2014
- 2014-03-26 CN CN201420139245.8U patent/CN203751313U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909267A (en) * | 2014-03-26 | 2014-07-09 | 浙江大学 | Semisolid metal powder forming device and method based on ultrasonic vibration |
| CN103909267B (en) * | 2014-03-26 | 2015-11-04 | 浙江大学 | Based on semi-solid-state metal powder forming device and the manufacturing process of ultrasonic vibration |
| CN109226720A (en) * | 2018-08-20 | 2019-01-18 | 江苏大学 | A kind of the semi-solid-state metal plastic processing method and device compound based on laser-impact and ultrasonic vibration |
| CN109226720B (en) * | 2018-08-20 | 2021-02-12 | 江苏大学 | Semi-solid metal plastic processing method and device based on combination of laser shock and ultrasonic vibration |
| CN109365780A (en) * | 2018-12-06 | 2019-02-22 | 昆明理工大学 | A kind of preparation of Model For The Bush-axle Type Parts semi solid slurry and the integrated device of extrusion casint |
| CN109365780B (en) * | 2018-12-06 | 2020-09-22 | 昆明理工大学 | Device for integrating semi-solid slurry preparation and extrusion casting of shaft sleeve parts |
| CN109612812A (en) * | 2019-01-15 | 2019-04-12 | 张瑞华 | A kind of new metal material content detection thawing molding machine |
| CN109612812B (en) * | 2019-01-15 | 2021-04-09 | 张瑞华 | Melting and forming device for detecting content of new metal material |
| CN113714504A (en) * | 2021-08-31 | 2021-11-30 | 东北大学 | Wear-resistant block with controllable metal matrix shrinkage rate and preparation device, method and application thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20151104 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |