CN212217030U - Water scraping device for preparing hard aluminum alloy - Google Patents
Water scraping device for preparing hard aluminum alloy Download PDFInfo
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- CN212217030U CN212217030U CN201922464794.8U CN201922464794U CN212217030U CN 212217030 U CN212217030 U CN 212217030U CN 201922464794 U CN201922464794 U CN 201922464794U CN 212217030 U CN212217030 U CN 212217030U
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- wiper
- ring
- lifter
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Abstract
The utility model discloses a wiper device for preparing hard aluminum alloy, which comprises a wiper frame, a wiper ring, a compression gasket, a compression bolt, a lifter and a screw rod, wherein the wiper frame is provided with the wiper ring through the compression gasket and the compression bolt; the left side and the right side of the wiper frame are respectively and fixedly provided with 1 lead screw, and the lead screws can realize the up-and-down movement of the wiper frame through a lifter; the lifter is fixedly arranged on the top surface of the crystallizer. The utility model discloses a function of lift and lead screw has realized the automatic of scraping water installation and has gone up and down, and it is big to have solved the tradition and scraped water installation casting stress when the hard alloy casting, and the ingot tail collapses and splits the scheduling problem, especially the casting start ingot casting produces the fracture problem because of the supercooling.
Description
Technical Field
The utility model belongs to the technical field of the aluminum alloy preparation, especially, relate to a scrape water installation for preparing duralumin alloy.
Background
The hard aluminum alloy has the characteristics of high strength, good corrosion resistance, excellent fracture toughness and fatigue resistance and the like, and is one of the most important structural materials in the aerospace field, but the high-performance aluminum alloy has high alloying degree and large solid-liquid phase line temperature difference, can generate great casting stress in the solidification process, can crack or even explode when the casting stress is greater than the strength limit of the material, and is easy to cause ingot tail warping and bottom collapse due to inadaptation of the casting stress and the ingot tail strength particularly in the initial stage of casting, and the collapse can extend upwards all the time in the casting process to cause ingot casting scrap. In the industry, the casting success rate of the hard alloy is improved to a certain extent by adopting a pure aluminum bottom laying method, the cracking tendency is reduced, but the operation is complex and the cost is high.
At present, a technology of casting hard alloy by using a water scraping ring is also proposed in China, for example, patent number CN 203972803U discloses a wiper device with a closed annular structure, cooling water has a certain liquid level in a water storage tank of the wiper before being discharged, so that the cooling water is contacted with the outer surface of an ingot, and the solidified areas below a liquid cavity of the ingot and above the water scraping ring are cooled too much to cause stress concentration and cracking; patent number CN 105414501 a discloses a fixed annular wiper, this technique because the wiper height can't be adjusted in casting process, when the wiper has not taken place to act on yet, the ingot tail that cast starts stage to take place promptly collapses and splits the problem and can't effectively solve, and this technique wiper plate designs into ring shape, and the casting process of mainly being applied to the round ingot has certain limitation.
The utility model discloses a solve traditional wiper casting stress when hard alloy is cast big, the ingot tail collapses and splits the scheduling problem, especially the initial ingot casting of casting produces the fracture problem because of the undercooling. A movable wiper device for producing hard aluminium alloy ingots is provided.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model discloses a water scraping device for preparing hard aluminum alloy.
In order to achieve the above object, the utility model adopts the following technical scheme:
a wiper device for preparing hard aluminum alloy comprises a wiper frame, a wiper ring, a compression gasket, a compression bolt, a lifter and a screw rod, wherein the wiper frame is provided with the wiper ring through the compression gasket and the compression bolt; the left side and the right side of the wiper frame are respectively and fixedly provided with 1 lead screw, and the lead screws can realize the up-and-down movement of the wiper frame through a lifter; the lifter is fixedly arranged on the top surface of the crystallizer.
The utility model discloses a function of lift and lead screw has realized the automatic of scraping water installation and has gone up and down, and it is big to have solved the tradition and scraped water installation casting stress when the hard alloy casting, and the ingot tail collapses and splits the scheduling problem, especially the casting start ingot casting produces the fracture problem because of the supercooling.
Further, the wiper frame is of a steel integral structure.
Furthermore, the shape of the water scraping ring is the same as the shape of the section of the ingot, and the size of the water scraping ring is smaller than that of the section of the ingot, so that the water scraping ring can be tightly extruded on the surface of the ingot.
Furthermore, the water scraping ring is in a circular ring shape or a square ring shape, so that the water scraping requirements of various shapes of cast ingots are met.
Furthermore, 1-20 water scraping rings are arranged on the wiper frame.
Furthermore, the material of the water scraping ring is high-temperature-resistant fluororubber, and the stability, the high-temperature resistance, the aging resistance and the mechanical property of the fluororubber all meet the use requirements of the water scraping ring.
Further, the lift include box, motor, worm wheel and worm, be provided with motor, worm wheel and worm in the box, the motor drives the worm and rotates, utilizes the transmission of worm to make the worm wheel rotatory, the worm wheel has interior trapezoidal screw thread, with the lead screw cooperation, can drive the lead screw and be axial motion to the axial motion of wiper frame has been realized.
The utility model has the advantages that: (1) the utility model discloses a wiper frame is steel integral structure, the wiper frame is fixed through connecting bolt and lead screw lower extreme, the lift passes through the axial motion of lead screw and realizes scraping the regulation of water ring height at, can use after the ingot tail exposes crystallizer certain length and scrape the water ring and carry out the manger plate, it can descend according to the going on of casting speed to scrape the water ring, and after the liquid level degree of depth is stable, it can stop in a fixed position below the liquid cave to scrape the water ring, until the casting is finished, but height-adjusting scrapes the water ring and not only reduced casting stress in casting stable stage, the condition that the ingot crack has greatly reduced, more importantly is at the initial stage of casting, avoided easily because casting stress and ingot tail intensity are inadaptable to lead to the excessive and bottom of ingot tail warpage to collapse the problem; (2) the utility model discloses a scrape water device not only can use the casting process at the circle ingot casting, also is applicable to the slab ingot equally, the casting process of the duralumin alloy slab ingot of specially adapted broad width.
Drawings
Fig. 1 is a schematic structural view of a wiper device for producing duralumin alloy according to the invention.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the directions or positional relationships indicated by "up", "down", "left" and "right" are directions or positional relationships based on the drawings, or directions or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the indicated devices or elements must have specific directions and specific directions, configurations and operations, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, a wiper device for preparing duralumin alloy comprises a wiper frame 1 of a steel integral structure, a wiper ring 2, a compression pad 3, a compression bolt 4, a lifter 5 and a screw rod 6, wherein the wiper frame 1 is provided with 20 wiper rings 2 made of high-temperature-resistant fluororubber through the compression pad 3 and the compression bolt 4. The wiper comprises a wiper frame 1, a wiper ring 2, a compression gasket 3 and a compression bolt 4. The wiper ring 2 is square, the shape of the wiper ring 2 is the same as the shape of the section of the ingot 9, and the size of the wiper ring 2 is smaller than that of the section of the ingot 9, for example, when the size of the wiper ring 2 is 2500mmX500mm, the size of the crystallizer 7 is 2540mmX550 mm. The left side and the right side of the wiper frame 1 are respectively and fixedly provided with 1 screw rod 6, and the wiper frame 1 is fixed with the lower end of each screw rod 6 through a connecting bolt; the lead screw 6 moves up and down through the lifter 5, and the lifter 5 adjusts the height of the water scraping ring 2 through the axial movement of the lead screw 6. The effective lifting range of the water scraping ring 2 is 0-800mm, and the specific effective lifting range is determined according to the shape and the size of the water scraping ring 2. The lifter 5 is fixedly arranged on the top surface of the crystallizer 7.
The utility model discloses a scrape water ring 2 and can also set to ring shape, when scraping the specification of water ring 2 and be
At 1280mm, the specification of the crystallizer 7 is
1320mm。
The utility model discloses an application principle: when the wiping ring 2 is square and the specification size is 2500mmX500mm, the specification size of the crystallizer 7 is 2540mmX550mm, the effective lifting length selected by the screw rod 6 is 800mm, and the used cooling water 8 is deionized water. In preparation for casting, a wiper device is installed below a mold 7, a lifter 5 controls a wiper descending distance to be 150mm, and cooling water 8 is sprayed onto a dummy head 10 and then flows to a wiper ring 2 along the dummy head 10 to be separated from the dummy head 10. After casting, the dummy bar head 10 carries the cast ingot 9 to move downwards at a certain casting speed, after the cast ingot 9 passes through the water scraping ring 2, the lifter 5 moves downwards at a speed 20mm/s lower than the casting speed until the lifter 5 controls the descending distance of the wiper to be 600mm, and the distance is kept until the casting is finished.
Although particular embodiments of the present invention have been described and illustrated in detail, it should be noted that various changes and modifications could be made to the above-described embodiments without departing from the spirit of the invention and the scope of the appended claims.
Claims (7)
1. A wiper device for preparing hard aluminum alloy comprises a wiper frame (1), a wiper ring (2), a compression gasket (3), a compression bolt (4), a lifter (5) and a screw rod (6), wherein the wiper frame (1) is provided with the wiper ring (2) through the compression gasket (3) and the compression bolt (4);
the windscreen wiper is characterized in that the left side and the right side of the windscreen wiper frame (1) are respectively and fixedly provided with 1 lead screw (6), and the lead screws (6) move up and down through a lifter (5); the lifter (5) is fixedly arranged on the top surface of the crystallizer.
2. Wiper device for producing duralumin according to claim 1, characterized in that the wiper frame (1) is of steel monolithic construction.
3. Wiper device for producing duralumin alloys according to claim 2, characterized in that the shape of the wiper ring (2) is the same as the shape of the cross-section of the ingot and the size of the wiper ring (2) is smaller than the size of the cross-section of the ingot.
4. A wiper device for hard aluminium alloy production according to claim 3, characterized in that the wiper ring (2) is circular or square ring shaped.
5. Wiper device for producing duralumin alloy according to claim 4, characterized in that 1-20 wiper rings (2) are mounted on said wiper frame (1).
6. Wiper device according to claim 5, characterized in that the material of the wiper ring (2) is a high temperature resistant fluororubber.
7. The wiper device for manufacturing duralumin alloy according to any one of claims 1 to 6, wherein said lifter (5) comprises a housing, a motor, a worm wheel and a worm, said housing being provided with said motor, said worm wheel and said worm, said motor transmitting power through said worm wheel and said worm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464794.8U CN212217030U (en) | 2019-12-31 | 2019-12-31 | Water scraping device for preparing hard aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464794.8U CN212217030U (en) | 2019-12-31 | 2019-12-31 | Water scraping device for preparing hard aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212217030U true CN212217030U (en) | 2020-12-25 |
Family
ID=73901718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922464794.8U Active CN212217030U (en) | 2019-12-31 | 2019-12-31 | Water scraping device for preparing hard aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212217030U (en) |
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2019
- 2019-12-31 CN CN201922464794.8U patent/CN212217030U/en active Active
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