CN117867306A - Magnesium alloy melt composite treatment purifying device and method and magnesium alloy melt production line - Google Patents
Magnesium alloy melt composite treatment purifying device and method and magnesium alloy melt production line Download PDFInfo
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- CN117867306A CN117867306A CN202410221458.3A CN202410221458A CN117867306A CN 117867306 A CN117867306 A CN 117867306A CN 202410221458 A CN202410221458 A CN 202410221458A CN 117867306 A CN117867306 A CN 117867306A
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- alloy melt
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 93
- 238000011282 treatment Methods 0.000 title claims abstract description 81
- 239000002131 composite material Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 56
- 239000000956 alloy Substances 0.000 claims abstract description 56
- 238000003756 stirring Methods 0.000 claims abstract description 53
- 230000004907 flux Effects 0.000 claims abstract description 47
- 238000000746 purification Methods 0.000 claims abstract description 38
- 238000007670 refining Methods 0.000 claims abstract description 35
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 16
- 229910052749 magnesium Inorganic materials 0.000 claims description 16
- 239000011777 magnesium Substances 0.000 claims description 16
- 238000003723 Smelting Methods 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000265 homogenisation Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 63
- 239000000155 melt Substances 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 238000010926 purge Methods 0.000 description 6
- 229910052761 rare earth metal Inorganic materials 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010128 melt processing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- -1 rare earth hydrides Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Classifications
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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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a magnesium alloy melt composite treatment purifying device and method and a magnesium alloy melt production line. The magnesium alloy melt composite treatment purifying device comprises a mobile device, composite treatment equipment and a crucible; the composite treatment equipment is arranged on the mobile equipment, and the mobile equipment can drive the composite treatment equipment to vertically move up and down; the composite treatment device can be matched with the crucible when moving downwards. The compound treatment equipment comprises a refining flux input hopper, a purified gas input pipe, a stirring shaft, a motor, a protective gas input pipe, a cover plate, an intermediate alloy hanging basket, a stirring blade structure, a mounting platform and a gas nozzle; the invention integrates the gas protection, flux purification, component homogenization and gas purification of the magnesium alloy melt, avoids the transportation between different processes, can continuously work after the cover plate is covered on the top opening of the crucible, does not need to frequently switch the cover plate in the middle, and shortens the whole working time.
Description
Technical Field
The invention relates to the technical field of metal materials and metallurgy, in particular to a magnesium alloy melt composite treatment purifying device and method and a magnesium alloy melt production line, and particularly relates to a magnesium alloy melt composite treatment purifying device with a large melting amount of 600 kg, in particular to a magnesium alloy melt composite treatment purifying device suitable for differential pressure casting.
Background
The magnesium alloy is used as the lightest engineering metal structural material, has the advantages of light specific gravity, high specific strength and specific rigidity, good damping property and machinability, good heat conductivity, strong electromagnetic shielding capability, good vibration damping property and the like, and is widely applied to the fields of daily manufacturing industry, aerospace and the like.
The main alloy elements of the magnesium alloy are Al, zn, mn, zr, rare earth elements and the like, but most of the alloy elements have higher density than magnesium, so that sedimentation and specific gravity segregation are easy to occur in the smelting process, the component uniformity of a magnesium alloy melt is obviously affected, and the mechanical property of the magnesium alloy is affected. Moreover, the magnesium alloy melt itself has poor sealing ability of an oxide film, and gas protection is generally used to prevent oxidation and combustion of the magnesium alloy melt during smelting. In addition, the magnesium alloy melt contains a large amount of impurities such as oxides, carbides, sulfides and the like, and the impurities can obviously reduce the mechanical property and corrosion resistance of the magnesium alloy. In addition, because the magnesium alloy melt has stronger hydrogen absorption capability, especially when the melt contains rare earth elements, the binding force between the rare earth elements and hydrogen is larger, the hydrogen content of the melt is increased, high-melting-point rare earth hydrides are easy to form, and the rare earth hydrides are distributed at grain boundaries in a square shape, so that the plasticity of the material is obviously reduced. Therefore, melt processing (component homogenization, gas protection, flux purification and gas purification) has become a main technical bottleneck for restricting the further popularization and application of magnesium alloy, especially rare earth magnesium alloy.
Magnesium alloys are typically subjected to the following melt treatments during smelting: (1) SF is generally used 6 And CO 2 The gas serves as a protective gas to prevent oxidation and combustion of the magnesium alloy melt, thereby protecting the magnesium alloy melt from gas. (2) The refining flux is added into the magnesium alloy melt, and then the refining flux and the magnesium alloy melt are fully and uniformly contacted in a stirring mode, so that impurities in the magnesium alloy melt are removed, the purpose of purifying the magnesium alloy melt by the flux is achieved, and the component uniformity of magnesium element and alloy element is improved by stirring. (3) By introducing inert gas into the magnesium alloy melt, the hydrogen element is in bubbles andthe difference of partial pressure differences in the magnesium alloy melt, hydrogen element in the melt continuously diffuses into the bubbles and floats to the liquid level to escape along with the rising of the bubbles, thereby realizing the purpose of removing hydrogen in the magnesium alloy melt.
However, in the present day, the above melt processing processes are often performed by different equipment, the processing processes are often performed independently, and the transfer or frequent opening and closing of the cover are required between the different processes, which increases the processing time of the melt. Therefore, based on the melt treatment required by the magnesium alloy smelting, it is necessary to develop a melt composite treatment device for magnesium alloy smelting, which performs composite treatment on components of the magnesium alloy in a homogenizing manner, a gas protection manner, a flux purification manner and a gas purification manner, reduces the treatment time of the melt, improves the efficiency of the melt treatment, and efficiently prepares the magnesium alloy melt.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a magnesium alloy melt composite treatment purifying device and method and a magnesium alloy melt production line.
The invention provides a magnesium alloy melt composite treatment purifying device, which comprises a mobile device, a composite treatment device and a crucible;
the composite treatment equipment is arranged on the mobile equipment, and the mobile equipment can drive the composite treatment equipment to move in a horizontal plane and also can drive the composite treatment equipment to vertically move up and down;
the crucible is fixedly arranged on the ground or an external bracket; the composite treatment device can be matched with the crucible when moving downwards.
Preferably, the compound treatment equipment comprises a refining flux input hopper, a purified gas input pipe, a stirring shaft, a motor, a protective gas input pipe, a cover plate, an intermediate alloy hanging basket, a stirring blade structure, a mounting platform and a gas nozzle;
the motor is arranged on the mounting platform, one end of the stirring shaft is in transmission connection with the motor, and the other end of the stirring shaft penetrates through the mounting platform to extend to the lower part of the mounting platform;
the cover plate is positioned below the mounting platform and can be covered on the top opening of the crucible;
the intermediate alloy hanging basket is directly or indirectly arranged below the cover plate, and the stirring shaft penetrates through the intermediate alloy hanging basket;
the stirring blade structure and the gas nozzle are both arranged on the stirring shaft and positioned below the intermediate alloy hanging basket;
one end of the refining flux input hopper, one end of the purifying gas input pipe and one end of the protecting gas input pipe are positioned above the cover plate, and the other end of the refining flux input hopper and one end of the protecting gas input pipe penetrate through the cover plate and extend to the lower part of the cover plate;
the other end of the purified gas input pipe is communicated with the gas nozzle.
Preferably, the stirring blade structure comprises an upper stirring blade and a lower stirring blade;
the intermediate alloy hanging basket, the upper stirring blade, the lower stirring blade and the gas nozzle are sequentially arranged from top to bottom.
Preferably, the intermediate alloy hanging basket is arranged below the cover plate through a bracket.
Preferably, the shielding gas input into the shielding gas input pipe is SF 6 And N 2 Is a mixed gas of (a) and (b).
Preferably, the refining flux added to the refining flux input hopper is JDMJ refining flux.
Preferably, the purge gas inputted into the purge gas input pipe is Ar 2 。
Preferably, the moving device comprises a vertical lifting structure and a horizontal moving structure;
the vertical lifting structure is arranged on the horizontal moving structure, and the compound processing equipment is connected with the vertical lifting structure.
According to the magnesium alloy melt composite treatment purification method provided by the invention, the magnesium alloy melt composite treatment purification device is adopted, and the method further comprises the following steps:
when the preparation of the magnesium alloy melt is carried out, firstly, it is advantageous toLifting the composite treatment equipment by using a vertical lifting structure, adding the magnesium ingot into the crucible, then lowering the composite treatment equipment to be matched with the crucible by using the vertical lifting structure, starting smelting the magnesium ingot, and inputting SF into the protective gas input pipe 6 And N 2 Is a mixed shielding gas of (a);
the intermediate alloy ingot can be simultaneously placed in the intermediate alloy hanging basket when the magnesium ingot is added into the crucible;
or according to the smelting temperature required to be reached by the intermediate alloy ingot, when the magnesium ingot is smelted, when the smelting temperature required to be reached by the intermediate alloy ingot is reached, the composite treatment equipment is lifted by utilizing the vertical lifting structure, the intermediate alloy ingot is placed on the intermediate alloy hanging basket, and then the composite treatment device is matched with the crucible again through the vertical lifting structure;
in the process of melting the intermediate alloy, a motor is started to drive a stirring shaft to rotate, then JPDMJ refining flux is added into a refining flux input hopper, and Ar is input into a purifying gas input pipe 2 Ar is sprayed out through a gas nozzle 2 And (5) air bubbles.
According to the magnesium alloy melt production line provided by the invention, the magnesium alloy melt composite treatment purifying device is adopted.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention integrates the gas protection, flux purification, component homogenization and gas purification of the magnesium alloy melt, avoids the transportation between different processes, can continuously work after the cover plate is covered on the top opening of the crucible, does not need to frequently switch the cover plate in the middle, and shortens the whole working time.
2. According to the invention, the intermediate alloy ingot is placed in the intermediate alloy hanging basket positioned in the middle of the crucible, so that support can be provided for the solid intermediate alloy, direct sedimentation of the intermediate alloy before melting can be effectively avoided, and the magnesium melt and the intermediate alloy melt can be stirred by the stirring blade, so that the component uniformity of the magnesium alloy melt is improved, and the process flow is simplified.
3. The book is provided withThe invention realizes the purpose of flux purification by adding refining flux into a refining flux input hopper, and besides, the invention inputs Ar into a purifying gas input pipe 2 The effect of purifying the magnesium alloy melt gas is realized, the sedimentation of intermediate alloy elements is hindered, and the subsequent impurity removal treatment is facilitated.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a part of the structure of FIG. 1;
the figure shows:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The invention provides a magnesium alloy melt composite treatment purifying device, which is shown in figures 1-2 and comprises a mobile device, a composite treatment device and a crucible 9; the composite treatment equipment is arranged on the mobile equipment, and the mobile equipment can drive the composite treatment equipment to move in a horizontal plane and also can drive the composite treatment equipment to vertically move up and down; the crucible 9 is fixedly arranged on the ground or an external bracket; the compound treatment device can cooperate with the crucible 9 when moving downwards.
The composite treatment equipment comprises a refining flux input hopper 3, a purified gas input pipe 4, a stirring shaft 5, a motor 6, a protective gas input pipe 7, a cover plate 8, an intermediate alloy hanging basket 10, a stirring blade structure, a mounting platform 100 and a gas nozzle 13; the mounting platform 100 is connected to the mobile device. The motor 6 is arranged on the mounting platform 100, one end of the stirring shaft 5 is in transmission connection with the motor 6, and the other end of the stirring shaft penetrates through the mounting platform 100 and extends to the lower part of the mounting platform 100; the cover plate 8 is located below the mounting platform 100 and can be closed over the top opening of the crucible 9. When the cover plate 8 is covered on the top opening of the crucible 9, the protective gas input pipe 7 is positioned on the upper part of the crucible 9, and the crucible 9 is isolated from the outside air through the cover plate 8, namely, the composite treatment equipment is matched with the crucible 9.
The master alloy basket 10 is mounted directly or indirectly below the cover plate 8 and the stirring shaft 5 extends through the master alloy basket 10, in a preferred embodiment the master alloy basket 10 is mounted below the cover plate 8 by means of brackets 14.
The stirring vane structure and the gas nozzle 13 are both arranged on the stirring shaft 5 and positioned below the master alloy hanging basket 10;
one end of the refining flux input hopper 3, one end of the purge gas input pipe 4 and one end of the shielding gas input pipe 7 are located above the cover plate 8, and the other end of the refining flux input hopper 3 and one end of the shielding gas input pipe 7 extend to below the cover plate 8 through the cover plate 8. The other end of the purge gas input pipe 4 communicates with a gas nozzle 13.
The stirring vane structure comprises an upper stirring vane 11 and a lower stirring vane 12; the intermediate alloy basket 10, the upper stirring blade 11, the lower stirring blade 12 and the gas nozzle 13 are sequentially arranged from top to bottom. When the stirring shaft 5 is rotated by the motor 6, the upper stirring blade 11 and the lower stirring blade 12 are also rotated.
In a preferred embodiment, the shielding gas introduced into the shielding gas inlet pipe 7 is SF 6 And N 2 Is a mixed gas of (a) and (b). The refining flux added into the refining flux input hopper 3 is JPDMJ refining flux. The purge gas input into the purge gas input pipe 4 is Ar 2 。
The moving device comprises a vertical lifting structure 1 and a horizontal moving structure 2; the vertical lifting structure 1 is installed on the horizontal moving structure 2, the compound processing equipment is connected with the vertical lifting structure 1, and specifically, the installation platform 100 is connected with the vertical lifting structure 1. In a preferred embodiment, the vertical lifting structure 1 is an elevator and the horizontal moving structure 2 is a trolley structure with wheels. The composite processing device can be vertically lifted through the vertical lifting structure, and the whole equipment can be moved through the moving device, so that the composite processing of magnesium alloy melts in crucibles with different specifications is realized.
The invention also provides a magnesium alloy melt composite treatment purification method, which adopts the magnesium alloy melt composite treatment purification device and further comprises the following steps:
when preparing magnesium alloy melt, firstly, lifting the composite treatment equipment by using the vertical lifting structure 1, adding magnesium ingots into the crucible 9, then lowering the composite treatment equipment by using the vertical lifting structure 1 to be matched with the crucible 9, starting smelting the magnesium ingots, and inputting SF into the protective gas input pipe 6 6 And N 2 And the mixed protective gas of the magnesium alloy melt in the crucible is subjected to gas protection to prevent the magnesium alloy melt from burning, so that the gas protection of the magnesium alloy melt is realized. In a preferred embodiment, the heat required for the smelting is achieved by heating the crucible 9 with an external heater.
The intermediate alloy ingot can be simultaneously placed in the intermediate alloy basket 10 when the magnesium ingot is added into the crucible 9; according to the smelting temperature required to be reached by the intermediate alloy ingot, when the magnesium ingot is smelted, when the smelting temperature required to be reached by the intermediate alloy ingot is reached, the composite treatment equipment is lifted by utilizing the vertical lifting structure 1, the intermediate alloy ingot is placed on the intermediate alloy hanging basket 10, and then the composite treatment device is matched with the crucible 9 again through the vertical lifting structure 1.
Wherein, the intermediate alloy hanging basket 10 is placed in the middle of the crucible, can provide support for the solid intermediate alloy in the process of melting the intermediate alloy, avoids the intermediate alloy from directly settling before melting, and the invention can prevent the process of opening the crucible cover plate 8 by extending part of the compound treatment device into the crucible, thereby simplifying the process flow.
In the process of melting the intermediate alloy, a motor 6 is started to drive a stirring shaft 5 to rotate, then JPDMJ refining flux is added into a refining flux input hopper 3, and Ar is input into a purifying gas input pipe 4 2 Ar is sprayed out through a gas nozzle 13 2 And (5) air bubbles. In the process, firstly, the refining flux is added, so that the flux purification of the magnesium alloy melt is realized, the process of opening the cover plate and adding the refining flux is also avoided, and the process flow is simplified; secondly, the upper stirring blade 11 stirs the magnesium alloy melt in the crucible by rotating, so that the refining flux is uniformly dispersed in the magnesium alloy melt, the flux purifying effect of the refining flux on the magnesium alloy melt is improved, and the mixing of the magnesium melt and the intermediate alloy melt can be promoted by stirring, so that the component homogenization of the magnesium alloy melt is promoted; furthermore, ar floats up 2 The bubbles play a role in stirring the magnesium alloy melt, so that good contact between the magnesium alloy melt and the refining flux is promoted, and the purifying effect of the refining flux is further improved; then, the hydrogen element in the melt continuously diffuses into the floating Ar 2 In the bubbles and escape, and sprayed Ar 2 The bubbles can bring the inclusions to the liquid level, so that the impurity removal treatment is convenient, and the gas purification of the magnesium alloy melt is realized; in addition, the lower stirring blade 12 also plays a role of stirring by rotating, promotes uniformity of components, and can discharge Ar 2 The bubbles are crushed and Ar is thinned 2 Bubbles, thereby lifting Ar 2 The bubbles perform the function of gas purification. And floating Ar 2 Bubbles can also effectively prevent the sedimentation of the intermediate alloy element, and the loss of the intermediate alloy element is reduced. Therefore, the composite treatment purification device for the magnesium alloy melt with large melting amount can realize the gas protection, flux purification, component homogenization, gas purification and dehydrogenation composite treatment purification effects on the magnesium alloy melt, simplify the process flow and shorten the treatment time of the magnesium alloy melt.
The invention provides a large-melting-amount magnesium alloy melt composite treatment purifying device, which integrates the gas protection, flux purification, component homogenization and gas purification of the magnesium alloy melt into a whole, shortens the treatment time of the magnesium alloy melt, and can efficiently prepare high-quality magnesium alloy melt with high purity and uniform components.
The invention can realize the compound treatment of gas protection, flux purification, component homogenization and gas purification of the magnesium alloy melt, integrates the compound treatment of gas protection, flux purification, component homogenization and gas purification of the magnesium alloy melt, simplifies the process flow, shortens the treatment time of the magnesium alloy melt, improves the production efficiency, can efficiently prepare the magnesium alloy melt with high purity and uniform component, and expands the application range of the magnesium alloy in the fields of automobiles, aerospace and the like. Has important significance for promoting the application of the high-performance magnesium alloy and expanding the application range of the magnesium alloy in the fields of automobiles, aerospace and the like.
The invention also provides a magnesium alloy melt production line, and the magnesium alloy melt composite treatment and purification device is adopted.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. The magnesium alloy melt composite treatment purifying device is characterized by comprising a mobile device, composite treatment equipment and a crucible (9);
the composite treatment equipment is arranged on the mobile equipment, and the mobile equipment can drive the composite treatment equipment to move in a horizontal plane and also can drive the composite treatment equipment to vertically move up and down;
the crucible (9) is fixedly arranged on the ground or an external bracket; the compound treatment device can be matched with the crucible (9) when moving downwards.
2. The magnesium alloy melt composite treatment purification device according to claim 1, wherein the composite treatment equipment comprises a refining flux input hopper (3), a purified gas input pipe (4), a stirring shaft (5), a motor (6), a shielding gas input pipe (7), a cover plate (8), a master alloy hanging basket (10), a stirring blade structure, a mounting platform (100) and a gas nozzle (13);
the motor (6) is arranged on the mounting platform (100), one end of the stirring shaft (5) is in transmission connection with the motor (6), and the other end of the stirring shaft penetrates through the mounting platform (100) and extends to the lower part of the mounting platform (100);
the cover plate (8) is positioned below the mounting platform (100) and can be covered on the top opening of the crucible (9);
the intermediate alloy hanging basket (10) is directly or indirectly arranged below the cover plate (8), and the stirring shaft (5) penetrates through the intermediate alloy hanging basket (10);
the stirring vane structure and the gas nozzle (13) are both arranged on the stirring shaft (5) and are positioned below the intermediate alloy hanging basket (10);
one end of the refining flux input hopper (3), one end of the purifying gas input pipe (4) and one end of the protecting gas input pipe (7) are positioned above the cover plate (8), and the other end of the refining flux input hopper (3) and one end of the protecting gas input pipe (7) penetrate through the cover plate (8) to extend to the lower part of the cover plate (8);
the other end of the purified gas input pipe (4) is communicated with a gas nozzle (13).
3. The magnesium alloy melt composite treatment purification device according to claim 2, wherein the stirring blade structure comprises an upper stirring blade (11) and a lower stirring blade (12);
the intermediate alloy hanging basket (10), the upper stirring blade (11), the lower stirring blade (12) and the gas nozzle (13) are sequentially arranged from top to bottom.
4. A magnesium alloy melt composite treatment purification device according to claim 3, characterized in that the intermediate alloy basket (10) is mounted under the cover plate (8) by means of a bracket (14).
5. The magnesium alloy melt composite treatment and purification device according to claim 1, wherein the shielding gas input into the shielding gas input pipe (7) is SF 6 And N 2 Is a mixed gas of (a) and (b).
6. The magnesium alloy melt composite treatment purifying device according to claim 1, wherein the refining flux added into the refining flux input hopper (3) is JDMJ refining flux.
7. The magnesium alloy melt composite treatment purification device according to claim 1, wherein the purification gas input into the purification gas input pipe (4) is Ar 2 。
8. The magnesium alloy melt composite treatment and purification device according to claim 1, wherein the moving device comprises a vertical lifting structure (1) and a horizontal moving structure (2);
the vertical lifting structure (1) is arranged on the horizontal moving structure (2), and the compound treatment equipment is connected with the vertical lifting structure (1).
9. A magnesium alloy melt composite treatment purification method, characterized in that the magnesium alloy melt composite treatment purification device according to any one of claims 1 to 8 is adopted, and further comprising the steps of:
when the magnesium alloy melt is prepared, firstly, the composite treatment equipment is lifted by utilizing the vertical lifting structure (1), then magnesium ingots are added into the crucible (9), then the composite treatment equipment is lowered by utilizing the vertical lifting structure (1) to be matched with the crucible (9), the smelting of the magnesium ingots is started, and SF is input into the protective gas input pipe (6) 6 And N 2 Is a mixed shielding gas of (a);
the intermediate alloy ingot can be simultaneously placed in the intermediate alloy hanging basket (10) when the magnesium ingot is added into the crucible (9);
or according to the smelting temperature required to be reached by the intermediate alloy ingot, when the magnesium ingot is smelted, when the smelting temperature required to be reached by the intermediate alloy ingot is reached, the composite treatment equipment is lifted by utilizing the vertical lifting structure (1), the intermediate alloy ingot is placed on the intermediate alloy hanging basket (10), and then the composite treatment device is matched with the crucible (9) again through the vertical lifting structure (1);
in the process of melting the intermediate alloy, a motor (6) is started to drive a stirring shaft (5) to rotate, then JPDMJ refining flux is added into a refining flux input hopper (3), and Ar is input into a purifying gas input pipe (4) 2 Ar is sprayed out through a gas nozzle (13) 2 And (5) air bubbles.
10. A magnesium alloy melt production line, characterized in that the magnesium alloy melt composite treatment purification device according to any one of claims 1 to 8 is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410221458.3A CN117867306A (en) | 2024-02-28 | 2024-02-28 | Magnesium alloy melt composite treatment purifying device and method and magnesium alloy melt production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410221458.3A CN117867306A (en) | 2024-02-28 | 2024-02-28 | Magnesium alloy melt composite treatment purifying device and method and magnesium alloy melt production line |
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| CN117867306A true CN117867306A (en) | 2024-04-12 |
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| CN202410221458.3A Pending CN117867306A (en) | 2024-02-28 | 2024-02-28 | Magnesium alloy melt composite treatment purifying device and method and magnesium alloy melt production line |
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