CN112974767A - Degassing device - Google Patents
Degassing device Download PDFInfo
- Publication number
- CN112974767A CN112974767A CN201911312172.1A CN201911312172A CN112974767A CN 112974767 A CN112974767 A CN 112974767A CN 201911312172 A CN201911312172 A CN 201911312172A CN 112974767 A CN112974767 A CN 112974767A
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- CN
- China
- Prior art keywords
- moving device
- molten metal
- degassing
- soup
- ladle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
- C22B9/026—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves by acoustic waves, e.g. supersonic waves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a degassing device, which is used for conveying molten metal melted in a melting furnace to a processing device, and comprises a first moving device, a soup feeding device, a second moving device and a vibrating device, wherein the soup feeding device comprises a soup ladle, and the soup ladle is moved by the first moving device to take out the molten metal; the vibrating device is provided with a base and an ultrasonic vibrating rod, the base moves towards the soup ladle through the second moving device, so that the ultrasonic vibrating rod moves and is arranged in the soup ladle to degas the metal liquid, and therefore the vibrating device can be used in a continuous die-casting process without interrupting the process of an original processing device, and the process time is greatly shortened.
Description
Technical Field
The present invention relates to a degassing apparatus, and more particularly, to a degassing apparatus for molten metal.
Background
In the conventional die casting process, air is easily involved in a die, so that the gas content of a die casting is high (generally more than 10cc/100g Al), and therefore, degassing of molten metal is generally not required (the gas content of the molten metal is generally less than 1cc/100g Al), but if a weldable/heat-treatable die casting is required, the gas content of the die casting is lower than 5cc/100g Al, and at the moment, the degassing of the molten metal is required, otherwise, the gas content of the die casting is easily over 5cc/100g Al.
Melt cleaning is a process for removing impurities from liquid metals, using physicochemical methods and corresponding technological measures, to obtain compositions that are satisfactory. With the increasingly wide application fields of aluminum alloys and the development and emergence of high performance aluminum alloys, higher and higher demands are made on the cleaning technology of aluminum alloy melts. There are many methods for cleaning aluminium melt, and different methods have their own advantages and disadvantages, and the actual production should be chosen reasonably according to the condition of impurities contained in the raw material and the quality requirements for the product.
According to the position of the cleaning process, the metal liquid cleaning method thereof can be classified into cleaning processes inside and outside the oven. The external cleaning process is a continuous cleaning process performed before the casting and shaping of the metal liquid tapped from the melting furnace, and is rapidly developed for improving the cleaning effect and ensuring a stable and reliable quality of the melt before the shaping, because of the internal cleaning of the aluminium alloy melt, which may cause secondary pollution during the re-injection of the melt. According to the quality requirement of casting, different processes such as degassing mainly, removing non-metal impurities mainly or simultaneously removing gas and slag and the like can be selected for purification outside the furnace.
The most commonly used degassing method is an inert gas rotary degassing method, in which argon or nitrogen is blown into molten metal through a rotating impeller to form fine bubbles and disperse the fine bubbles in the molten metal, so that hydrogen in the molten metal diffuses into the bubbles, and when the bubbles float to the liquid surface, the gas in the molten metal is further removed, but the degassing time required by the degassing method is about 20 to 30 minutes, and the degassing method is allowed to stand for 10 to 20 minutes after degassing, so that the bubbles blown into the molten metal completely float to the liquid surface and the gas in the molten metal is removed. And the degassed molten metal is used within 30 minutes, otherwise, the molten metal can absorb hydrogen again, so that the degassing method is not suitable for the continuous production type die casting process.
In order to solve the conventional degassing problem, US 5,660,614 proposes a method for degassing metal, which uses a groove and installs several gas dispersing devices in the groove, so that the metal liquid continuously flows through the groove, the gas enters the metal liquid from the bottom of the groove, the gas dispersing device breaks the gas into fine bubbles, and the bubbles are dispersed in the metal liquid to carry away the gas dissolved in the metal liquid, thereby continuously degassing.
Therefore, US 7,682,556B 2 proposes a liquid degassing apparatus, which comprises a container having an ultrasonic generator on its wall, an inlet for liquid to enter the container and an outlet for liquid to exit the container, and ultrasonic vibration to generate holes in the liquid for releasing gas dissolved in the liquid to form bubbles, so that the bubbles float to the liquid surface, thereby removing gas from the liquid.
However, the inert gas rotary degassing method of the prior art is not suitable for the continuous production die casting process because the standing time required after degassing is long, although a double melting furnace system is used to solve the standing problem, besides the need of adding equipment, the power supply system also needs to be designed additionally, the rotating device is very complex, the degassing device provided above uses a plurality of impellers, which also results in high cost, and the same liquid degassing device also needs to replace the original die casting process equipment, which has the same cost consideration problem.
In view of the defects of the conventional degassing device, cost considerations and the fact that the structure design thereof is not ideal, how to develop a degassing device for use in the continuous die-casting process without replacing the original die-casting process equipment and interrupting the process, thereby greatly reducing the process time and cost, serving the public and promoting the development of the industry, is a subject to be overcome by those skilled in the relevant art.
Disclosure of Invention
The present invention provides a degassing device, wherein a molten metal is melted in a melting furnace and transferred to a processing device, a first moving device moves a ladle to the melting furnace to obtain the molten metal and then moves the ladle out of the melting furnace, and a second moving device moves a base of a vibration device, so that an ultrasonic vibration rod of the vibration device can be placed in the ladle to degas the metal, and meanwhile, the process of the original processing device is not required to be interrupted, thereby greatly reducing the process time.
In order to achieve the above object, one embodiment of the present invention discloses a degassing apparatus for melting a molten metal in a melting furnace and transferring the molten metal to a processing apparatus, comprising a first moving device disposed at one side of the melting furnace; a soup feeding device arranged on the first moving device, wherein the soup feeding device comprises a soup ladle which takes the molten metal from the melting furnace according to the first moving device and moves out from the upper part of the melting furnace; the second moving device is arranged on one side of the soup feeding device; and the vibrating device is provided with a base and an ultrasonic vibrating spear, the base is arranged on the second moving device, the ultrasonic vibrating spear is arranged on the base, and the base moves towards the soup ladle through the second moving device, so that the ultrasonic vibrating spear is arranged in the soup ladle to degas the metal liquid.
In an embodiment of the present invention, the molten metal of the ladle is transported to the processing device through the first moving device.
The present invention further comprises a third moving device disposed on the supporting base; and the box body is arranged on the third moving device, is opposite to the ultrasonic vibration rod, moves towards the soup ladle through the third moving device and contains the soup ladle.
In another embodiment of the present invention, the box further includes at least one heating coil and an accommodating space, and the heating coil is disposed in the accommodating space to heat the molten metal accommodated in the ladle.
In an embodiment of the present invention, the oscillating device further includes a heat insulation board disposed at one side of the base, and the ultrasonic vibrator is disposed at one side of the heat insulation board.
Drawings
FIG. 1: which is a schematic illustration of an apparatus according to an embodiment of the present invention;
FIG. 2: it is a schematic operation diagram of a degassing device according to an embodiment of the present invention;
FIG. 3: it is a schematic operation diagram of a degassing device according to an embodiment of the present invention;
FIG. 4: which is a schematic illustration of an apparatus according to another embodiment of the present invention;
FIG. 5: it is a schematic operation diagram of a degassing device according to another embodiment of the present invention; and
FIG. 6: it is a schematic operation diagram of a degassing device according to another embodiment of the present invention.
[ brief description of the drawings ]
1 melting furnace
11 molten metal
2 processing device
3 first moving device
4 give hot water device
41 soup ladle
5 second moving device
6 vibration device
61 base
62 ultrasonic vibration rod
621 Heat insulation board
7 third moving device
8 box body
81 heating coil
82 accommodating space
Detailed Description
In order to provide a further understanding and appreciation for the structural features and advantages achieved by the present invention, the following detailed description of the presently preferred embodiments is provided:
hereinafter, the present invention will be described in detail by illustrating various embodiments thereof with the aid of the drawings. The inventive concept may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein.
The invention relates to a degassing device, which is characterized in that molten metal in a melting furnace is conveyed to a processing device, a soup ladle is moved to the melting furnace through a first moving device to obtain the molten metal, and a vibrating device is moved to be close to the soup ladle through a second moving device, so that an ultrasonic vibrating rod of the vibrating device is placed in the soup ladle to degas the molten metal.
Fig. 1 is a schematic diagram of an apparatus according to an embodiment of the present invention, as shown in the drawings; the degassing device is used for conveying molten metal 11 melted in a melting furnace 1 to a processing device 2, and comprises a first moving device 3, a soup feeding device 4, a second moving device 5 and an oscillating device 6, wherein the first moving device 3 is arranged at one side of the melting furnace 1; the soup feeding device 4 is arranged on the first moving device 3, the soup feeding device 4 comprises a soup ladle 41, and the soup ladle 41 takes out the molten metal 11 from the melting furnace 1 and is moved out from the upper part of the melting furnace 1 by the first moving device 3; the second moving device 5 is arranged at one side of the soup feeding device 4; the oscillating device 6 has a base 61 and an ultrasonic vibration rod 62, the ultrasonic vibration rod 62 further includes a heat insulation plate 621, the heat insulation plate 621 is disposed on one side of the base 61, and the ultrasonic vibration rod 62 is disposed on one side of the heat insulation plate 621, the base 61 is disposed on the second moving device 5, the ultrasonic vibration rod 62 is disposed on the base 61, and the base 61 can move toward the soup ladle 41 via the second moving device 5, so that the ultrasonic vibration rod 62 is disposed in the soup ladle 41 to degas the molten metal 11, and the heat insulation plate 621 covers above the soup ladle 41, so as to prevent the temperature from dissipating, after the degassing is completed, the molten metal 11 in the soup ladle 41 is conveyed to the processing device 2 via the first moving device 3.
In one embodiment, the processing device 2 is a die casting machine, and the degassed molten metal 11 is transported to the die casting machine by the first moving device 3 for use by the die casting machine, and the ratio of the size of the ladle 41 to the size of the melting furnace 1 is between 0.01 times and 0.0005 times, however, since the degassing device is directly located in the ladle to degas the molten metal, the size of the ladle 41 is much smaller than the size of the melting furnace 1, and the degassing time can be greatly shortened.
Next, to achieve the degassing method of the present invention, refer to FIGS. 2-3, which are schematic operation diagrams of a degassing device according to an embodiment of the present invention, as shown in the figures; the feeding device 4 is moved to the melting furnace 1 through the first moving device 3 to take the molten metal 11, and is moved out from the upper part of the melting furnace 11, and then the second moving device 5 moves the base 61 of the oscillating device 6 to the spoon 41, so that the ultrasonic vibrating rod 62 is placed in the spoon 41 to degas the molten metal 11, after the degassing is completed, the base 61 of the oscillating device 6 is far away from the spoon 41 through the second moving device 5, and finally the molten metal 11 after the degassing is conveyed to the processing device 2 through the first moving device 3.
Referring to fig. 4, a schematic diagram of an apparatus according to another embodiment of the invention is shown; the degassing apparatus of the present invention is different from the previous embodiment in that the degassing apparatus 3 of the present embodiment further comprises a third moving device 7 and a box 8, wherein the third moving device 7 is disposed on the second moving device 5; the box body 8 is disposed on the third moving device 7, and relative to the ultrasonic vibrator 62, the box body 8 further includes a heating coil 81 and an accommodating space 82, the heating coil 81 is disposed in the accommodating space 82, and the box body 8 moves toward the spoon 41 via the third moving device 7, so that the box body 8 accommodates the spoon 41, and heats and insulates the molten metal 11 in the spoon 41.
Next, to achieve the degassing method of the present invention, refer to fig. 5-6, which are schematic operation diagrams of a degassing device according to another embodiment of the present invention, and as shown in the figures, the difference of the present embodiment is that the degassing device includes a third moving device 7 and a box 8; give hot water device 4 and will remove to melting furnace 1 through first mobile device 3 and get metal liquid 11, and shift out from the top of melting furnace 11, make the base 61 of oscillation device 6 move towards soup ladle 41 by second mobile device 5 successively, and make ultrasonic vibration stick 62 place in soup ladle 41 and to the degasification of metal liquid 11, move box 8 upwards towards soup ladle 41 through third mobile device 7 simultaneously, and can hold soup ladle 41 in order to heat and keep warm, and after the degasification is accomplished, make the base 61 of oscillation device 6 keep away from soup ladle 41 through second mobile device 5, keep away from soup ladle 41 through third mobile device 7 removal box 8 simultaneously, carry the metal liquid 11 after the degasification is accomplished to processingequipment 2 through first mobile device 3 at last.
In summary, the present invention provides a degassing device, which moves with a second moving device to move an oscillating device to a ladle to complete degassing before the ladle conveys molten metal to a processing device, and can include a box body, and a heating coil is disposed in the box body to achieve a heat preservation effect, so that the molten metal maintains its temperature during the conveying and degassing processes, and the molten metal maintains an optimal state during a continuous die casting process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (6)
1. A degassing apparatus for a melting furnace to melt a molten metal and transfer the molten metal to a processing apparatus, comprising:
a first moving device arranged at one side of the melting furnace;
a soup feeding device arranged on the first moving device, wherein the soup feeding device comprises a soup ladle which takes the molten metal from the melting furnace according to the first moving device and moves out from the upper part of the melting furnace;
the second moving device is arranged on one side of the soup feeding device; and
and the vibrating device is provided with a base and an ultrasonic vibrating spear, the base is arranged on the second moving device, the ultrasonic vibrating spear is arranged on the base, and the base moves towards the soup ladle through the second moving device, so that the ultrasonic vibrating spear is arranged in the soup ladle to degas the metal liquid.
2. The degassing apparatus of claim 1 wherein the molten metal of the ladle is transported to the processing apparatus via the first moving apparatus.
3. The degassing apparatus of claim 1 further comprising:
a third moving device, which is arranged on the supporting seat; and
and the box body is arranged on the third moving device, corresponds to the ultrasonic vibration rod, moves towards the soup ladle through the third moving device and contains the soup ladle.
4. The degassing device as claimed in claim 3, wherein the box further comprises at least one heating coil and a receiving space, the heating coil is disposed in the receiving space to heat the molten metal received by the spoon.
5. The degassing apparatus of claim 1 wherein the oscillating device further comprises a heat shield disposed on a side of the base, the ultrasonic vibrator being disposed on a side of the heat shield.
6. The degassing apparatus of claim 1 wherein the ratio of the size of the ladle to the size of the melting furnace is between 0.01 and 0.0005.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312172.1A CN112974767A (en) | 2019-12-18 | 2019-12-18 | Degassing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312172.1A CN112974767A (en) | 2019-12-18 | 2019-12-18 | Degassing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112974767A true CN112974767A (en) | 2021-06-18 |
Family
ID=76344071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911312172.1A Pending CN112974767A (en) | 2019-12-18 | 2019-12-18 | Degassing device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100666629B1 (en) * | 2005-07-29 | 2007-01-10 | 기아자동차주식회사 | Solution supply apparatus of low pressure die casting machine |
| CN102198500A (en) * | 2010-03-24 | 2011-09-28 | 加特可株式会社 | Casting device and casting method |
| CN106001497A (en) * | 2016-07-06 | 2016-10-12 | 安徽中鑫模具产业发展有限公司 | Robot for casting slurry delivery and slurry treatment |
| CN109055777A (en) * | 2018-10-11 | 2018-12-21 | 广东华劲金属型材有限公司 | A kind of method that degasification is used in molten aluminum processing |
| CN109277551A (en) * | 2018-12-05 | 2019-01-29 | 福州清山压铸有限公司 | A kind of die casting equipment automatic material fetching machine |
| CN208632616U (en) * | 2018-07-06 | 2019-03-22 | 广州致远新材料科技有限公司 | Mobile ultrasonic device |
| CN110216267A (en) * | 2019-06-19 | 2019-09-10 | 周芮冬 | A kind of die casting machine novel intelligent coordinated type soup feeding machine |
-
2019
- 2019-12-18 CN CN201911312172.1A patent/CN112974767A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100666629B1 (en) * | 2005-07-29 | 2007-01-10 | 기아자동차주식회사 | Solution supply apparatus of low pressure die casting machine |
| CN102198500A (en) * | 2010-03-24 | 2011-09-28 | 加特可株式会社 | Casting device and casting method |
| CN106001497A (en) * | 2016-07-06 | 2016-10-12 | 安徽中鑫模具产业发展有限公司 | Robot for casting slurry delivery and slurry treatment |
| CN208632616U (en) * | 2018-07-06 | 2019-03-22 | 广州致远新材料科技有限公司 | Mobile ultrasonic device |
| CN109055777A (en) * | 2018-10-11 | 2018-12-21 | 广东华劲金属型材有限公司 | A kind of method that degasification is used in molten aluminum processing |
| CN109277551A (en) * | 2018-12-05 | 2019-01-29 | 福州清山压铸有限公司 | A kind of die casting equipment automatic material fetching machine |
| CN110216267A (en) * | 2019-06-19 | 2019-09-10 | 周芮冬 | A kind of die casting machine novel intelligent coordinated type soup feeding machine |
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Application publication date: 20210618 |
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