CN204565082U - A kind of skewed slot method semi-solid rheological molding device of ultrasonic assistant - Google Patents
A kind of skewed slot method semi-solid rheological molding device of ultrasonic assistant Download PDFInfo
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- CN204565082U CN204565082U CN201520182684.1U CN201520182684U CN204565082U CN 204565082 U CN204565082 U CN 204565082U CN 201520182684 U CN201520182684 U CN 201520182684U CN 204565082 U CN204565082 U CN 204565082U
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Abstract
The utility model discloses a kind of skewed slot method semi-solid rheological molding device, comprise cooling chute, it is characterized in that: the lower end of described cooling chute is provided with a vibrating device; The supersonic generator that described vibrating device comprises ultrasonic transducer and is connected with described ultrasonic transducer signal input part, the lower end of described cooling chute is connected to the output of described ultrasonic transducer; Described ultrasonic transducer is multiple, and is arranged on the lower end of described cooling chute uniformly.When metallic solution is poured on cooling chute, apply ultrasonic vibration by ultrasonic wave to it, it is easier from the disengaging of skewed slot surface to make at the crystal grain of bottom surface cooling nucleation.And strengthen the stirring between crystal grain and metallic solution by ultrasonic vibration, semi solid slurry is mixed, thus improve the quality of skewed slot legal system for semi solid slurry.
Description
Technical field
The utility model belongs to Semi-solid Metal Thixoforming field, especially in semi-solid state metal rheological shaping.
Background technology
Since the seventies in last century, semisolid metal processing technology was suggested, because it has good mobility in process, dense structure's property of easily solidifying rear formation is high, and uniformity is good, can be processed into the plurality of advantages such as complex shape part and obtain to pay close attention to widely and study.
Nearly 20 years deepen continuously along with semi-solid processing is researched and developed, and semi-solid state forming technique enters the commercial applications stage in auto industry and 3C industry etc.The semisolid part of the excellent blank of the aluminium alloy of the larger different-diameter having French PECHINEY company to produce, magnesium alloy semi solid state and ALUMAX company of the U.S. and the production of Italian STAMPAL company.
The forming technology route of current semi-solid processing mainly contains two kinds: one be metal from liquid cooled to semi-solid temperature, then to obtained semi solid slurry direct forming, be generally referred to as rheological molding; Another kind first semi solid slurry is solidified completely to obtain blank, and reheating semi-solid temperature shaping, this mode is called as thixotropic forming.
Relative to thixotropic forming technique, semi-solid rheological molding is because it is by slurry direct forming, so have the saving energy, flow process is short, and production cost is low, and production efficiency is high, and equipment is simple, is suitable for the advantages such as the alloys range of semi-solid processing is large.But simultaneously condition harshness needed for the preservation difficulty of the slurries of rheological molding and course of conveying, brings certain difficulty to its production application, rheological molding technology is also made to be the important research direction of following semi-solid processing technique.
Cooling chute method is a kind of semi-solid rheological molding technique of being invented by Japanese UBE Co., Ltd., its basic craft course is poured on the swash plate of cooling device by melted temperature higher than the metallic solution of liquidus temperature, high temperature metal solution temperature after running into cold drawing reduces rapidly, occur that nucleation forms crystal grain, and be involved in wherein under the washing away of liquid solution, thus form semi solid slurry.This forming technology can collect making semisolid slurry and transport and one, and method is simple, and cost is lower, but the more difficult control of its technical process, and it is low to there is nucleation density, semi solid slurry mixes the problems such as even not.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is the skewed slot method semi-solid rheological molding device providing a kind of ultrasonic assistant, mixes uneven problem to solve skewed slot legal system in the slurry at the bottom of the nucleation density in semi solid slurry process.
The technical solution of the utility model is achieved in that
A kind of skewed slot method semi-solid rheological molding device, comprises cooling chute, it is characterized in that: the lower end of described cooling chute is provided with a vibrating device.
The supersonic generator that described vibrating device comprises ultrasonic transducer and is connected with described ultrasonic transducer signal input part, the lower end of described cooling chute is connected to the output of described ultrasonic transducer.
Described ultrasonic transducer is multiple, and is arranged on the lower end of described cooling chute uniformly.
Described cooling-water duct is arranged in skewed slot base plate interior, has coolant outlet and cooling water inlet to draw from skewed slot base plate.
Described supersonic generator is connected with multiple ultrasonic transducer, provides energy to ultrasonic transducer, and vibration frequency is adjustable between 20 ~ 50kHZ, and ultrasonic power output is adjustable between 100 ~ 1000W.
The utility model adopts the preparation of vibration semi-solid state assistant slurry, its object is to while pouring melted metallic solution into skewed slot, utilize the method for vibration to impel the crystal grain of cooling nucleation to depart from skewed slot bottom surface, and by vibration, semi solid slurry is mixed.
Advantage of the present utility model is the grain density being strengthened the slurrying of skewed slot method semi-solid rheological molding by ultrasonic wave vibration, and crystal grain thinning, makes semi solid slurry mix.
Accompanying drawing explanation
Fig. 1 is the utility model apparatus structure schematic diagram.
Wherein: 1, tundish, 2, cooling water inlet, 3, ultrasonic transducer, 4, supersonic generator, 5, coolant outlet, 6, mould, 7, cooling chute.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of skewed slot method semi-solid rheological molding device, comprises tundish 1, cooling water inlet 2, ultrasonic transducer 3, supersonic generator 4, coolant outlet 5, mould 6 and cooling chute 7.
Be processed with cooling-water duct at cooling chute 7 base plate interior, the two ends of cooling-water duct are respectively cooling water inlet 2 and coolant outlet 5.Ultrasonic transducer 3 is multiple, and is distributed on the base plate lower end of cooling chute 7.Supersonic generator 4 is connected with multiple ultrasonic transducer 3, provides energy to ultrasonic transducer 3, and vibration frequency is adjustable between 20 ~ 50kHZ, and ultrasonic power output is adjustable between 100 ~ 1000W.
The implementation method of the utility model building mortion is: first opened by supersonic generator 4, supersonic frequency adjusts to 20kHZ, and power output is 200w, and cooling water is passed into cooling water inlet 2.After the magnesium alloy complete melting in tundish 1 or aluminium alloy solution are incubated a period of time near liquidus curve, pour into cooling chute 7 top, metallic solution is flowed downward under self gravitation effect and with cooling chute 7 contacts baseplate after cool.Solution bottom cooling chute 7 is when temperature drops to below solidus temperature, can solidify and form crystal grain and grow up gradually, at this moment because the ultrasonic vibration effect of ultrasonic transducer 3, crystal grain cooling chute 7 base plate not having enough time grow up enters in metallic solution from base plate disengaging under the effect of nibbling shear shear force, forms semi solid slurry.Under ultrasonic vibration, semi solid slurry also can produce vibration and liquid phase and solid phase are fully mixed.When semi solid slurry arrives bottom skewed slot, solid rate reaches more than 60%, is poured directly in metal forming mould 6, completes semi-solid rheological molding.
Claims (5)
1. a skewed slot method semi-solid rheological molding device, comprises cooling chute, it is characterized in that: the lower end of described cooling chute is provided with a ultrasonic vibration apparatus.
2. skewed slot method semi-solid rheological molding device according to claim 1, it is characterized in that: the supersonic generator that described vibrating device comprises ultrasonic transducer and is connected with described ultrasonic transducer signal input part, the lower end of described cooling chute is connected to the output of described ultrasonic transducer.
3. skewed slot method semi-solid rheological molding device according to claim 2, is characterized in that: described ultrasonic transducer is multiple, and is arranged on the lower end of described cooling chute uniformly.
4. skewed slot method semi-solid rheological molding device according to claim 2, is characterized in that: the vibration frequency of described supersonic generator is 20 ~ 50kHZ, and ultrasonic power output is 100 ~ 1000W.
5. according to the skewed slot method semi-solid rheological molding device one of Claims 1-4 Suo Shu, it is characterized in that: on described cooling chute, be provided with cooling-water duct, one end of cooling-water duct is cooling water inlet, and the other end of cooling-water duct is coolant outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182684.1U CN204565082U (en) | 2015-03-30 | 2015-03-30 | A kind of skewed slot method semi-solid rheological molding device of ultrasonic assistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520182684.1U CN204565082U (en) | 2015-03-30 | 2015-03-30 | A kind of skewed slot method semi-solid rheological molding device of ultrasonic assistant |
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| CN204565082U true CN204565082U (en) | 2015-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475531A (en) * | 2015-09-01 | 2017-03-08 | 通用汽车环球科技运作有限责任公司 | The degassing of shape casting aluminium alloy and microstructure refinement |
| CN107186181A (en) * | 2017-05-23 | 2017-09-22 | 广东工业大学 | A kind of device and method for preparing semi solid slurry |
| CN113134580A (en) * | 2021-04-26 | 2021-07-20 | 兰州理工大学 | Preparation method and preparation device of metal semi-solid non-dendritic crystal slurry |
-
2015
- 2015-03-30 CN CN201520182684.1U patent/CN204565082U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475531A (en) * | 2015-09-01 | 2017-03-08 | 通用汽车环球科技运作有限责任公司 | The degassing of shape casting aluminium alloy and microstructure refinement |
| US9981310B2 (en) | 2015-09-01 | 2018-05-29 | GM Global Technology Operations LLC | Degassing and microstructure refinement of shape casting aluminum alloys |
| CN107186181A (en) * | 2017-05-23 | 2017-09-22 | 广东工业大学 | A kind of device and method for preparing semi solid slurry |
| CN113134580A (en) * | 2021-04-26 | 2021-07-20 | 兰州理工大学 | Preparation method and preparation device of metal semi-solid non-dendritic crystal slurry |
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