Magnesium alloy casting integrated equipment

Abstract

The utility model discloses magnesium alloy casting integrated equipment. The magnesium alloy casting integrated equipment comprises a working cabin unit, a melting and pouring unit, a control unit and a conveying unit. The working cabin unit comprises a sealed working chamber, a first transition chamber, a second transition chamber and a third transition chamber, wherein the first transition chamber, the second transition chamber and the third transition chamber are arranged around the sealed working chamber, and any one of the first transition chamber, the second transition chamber and the third transition chamber and the sealed working chamber have two working states of mutual communication and sealed isolation. And the melting and pouring unit is arranged in the sealed working chamber and is used for performing melting and pouring. The control unit is used for operating the melting pouring unit. The conveying unit is used for conveying materials between the two transition chambers and between each transition chamber and the sealed working chamber. Through the transition chamber, materials before casting are conveyed into the working cabin unit under the anaerobic condition, magnesium alloy after casting is output under the anaerobic condition, it is guaranteed that the magnesium alloy is not oxidized, and the magnesium alloy yield is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium alloy melting and casting, in particular to an integrated magnesium alloy melting and casting device. Background Art

[0002] Magnesium alloy products have a wide range of applications in the fields of aviation, aerospace, ships, weapons, automobiles, and electronics. Especially in the fields of aviation and aerospace, the application prospects are very broad. Magnesium or magnesium alloy is particularly easy to oxidize in the air, generating magnesium oxide inclusions. The inflow of magnesium oxide inclusions into the casting will cause defects and affect the mechanical properties of the casting. Due to the characteristics of low melting and boiling points and strong oxidizability of magnesium alloy (the oxidation process of magnesium alloy is an exothermic reaction, and the temperature after the reaction is as high as 2850 °C), it is extremely easy to form defects such as pores, cracks, and oxidation inclusions inside the component. In addition, magnesium alloy is prone to explosion risk at high temperatures. Therefore, it is very necessary to take measures to cut off the oxidation path of magnesium alloy.

[0003] The prior art adopts a single-point method for magnesium alloy protection, including melting furnace protection, pouring protection, and mold protection. Specifically, a protective cover is added to the crucible, and an inert gas is introduced to displace oxygen, so as to achieve the purpose of preventing magnesium alloy oxidation. In addition, although introducing an inert gas into the crucible can displace the oxygen in the crucible, the crucible is not a sealed container, and oxygen in the air can still enter the crucible, and there is still a chance for the magnesium alloy in the crucible to be oxidized. The connection points of the pouring process and the mold protection are weak links, but the connection points of the above processes are not subjected to anti-oxidation treatment, and the probability of magnesium alloy oxidation is particularly high, which will cause a large number of oxidation inclusion defects. Therefore, the prior art does not fundamentally cut off the oxidation path of magnesium alloy, and the oxidation of magnesium alloy cannot be avoided. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated magnesium alloy melting and casting device, so as to overcome the deficiencies in the prior art.

[0005] To achieve the aforementioned utility model purpose, the technical solutions adopted by the utility model include:

[0006] The utility model discloses an integrated magnesium alloy melting and casting device, including a working chamber unit, the working chamber unit includes a sealed working chamber and at least one first transition chamber, at least one second transition chamber, and at least one third transition chamber arranged around the sealed working chamber, and any one of the first transition chamber, the second transition chamber, and the third transition chamber has two working states of being mutually communicated with and mutually sealed and isolated from the sealed working chamber;

[0007] A melting and pouring unit, arranged in the sealed working chamber, and at least used for performing magnesium alloy melting, refining, and pouring processes;

[0008] A control unit, which is arranged in the sealed working chamber and is used to control the melting and pouring unit;

[0009] A conveying unit, which is at least used to convey materials between two transition chambers and between each transition chamber and the sealed working chamber.

[0010] In this solution, the melting and pouring unit is arranged in the sealed working chamber of the working cabin unit, that is, the melting and pouring of magnesium alloy are integrally sealed to achieve oxygen-free melting and casting integration. In addition, there are at least a first transition chamber, a second transition chamber, and a third transition chamber, which send the materials before melting and casting into the interior of the working cabin unit body under oxygen-free conditions, and output the cast magnesium alloy under oxygen-free conditions, ensuring that the magnesium alloy is not oxidized and improving the yield of magnesium alloy products.

[0011] Furthermore, the conveying unit includes:

[0012] A first conveying mechanism, which moves between the first transition chamber and the sealed working chamber and is at least used to convey furnace charges into the melting and pouring unit;

[0013] A second conveying mechanism, which moves between the second transition chamber and the sealed working chamber and is at least used to convey molds into the melting and pouring unit; the second conveying mechanism also moves between the sealed working chamber and the third transition chamber and is at least used to output finished products.

[0014] Preferably, the second conveying mechanism includes a motorized roller table, and the motorized roller table includes a plurality of rollers, a bracket, and a support column, and the roller shafts are fixed in the bracket; the upper part of the bracket is connected to the support column.

[0015] Furthermore, the magnesium alloy melting and casting integrated equipment further includes:

[0016] A vacuum pumping device, which cooperates with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber and is used to adjust the vacuum degree of any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber.

[0017] More preferably, the vacuum pumping device includes a vacuum pump and an exhaust pipe; one end of the exhaust pipe is connected to the vacuum pump, and the other end cooperates with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber and is used to introduce inert gas into any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber.

[0018] In a further solution, through a vacuum pumping device, any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber can be evacuated to a vacuum degree reaching a preset value or above. In addition, the vacuum pumping device can be used simultaneously with the inert gas supply device to purge the working chamber unit body, so as to more precisely control the oxygen content and ensure that the magnesium alloy is not oxidized during the entire process of melting and casting.

[0019] Furthermore, the integrated magnesium alloy melting and casting equipment further includes:

[0020] An inert gas supply device, which cooperates with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber, and is used to introduce inert gas into any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber.

[0021] Preferably, the inert gas supply device includes a gas supply cylinder and a gas transmission pipe connected to the gas supply cylinder; the gas transmission pipe is connected to the working chamber unit.

[0022] Furthermore, the integrated magnesium alloy melting and casting equipment further includes:

[0023] An inert gas recovery device, which cooperates with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber, and is used to extract inert gas from any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber; the inert gas recovery device includes an inert gas recovery transition tank, an inert gas recovery tank, and a compressor; the compressor is used to compress, separate, and purify the inert gas in the inert gas recovery transition tank and input it into the inert gas recovery tank.

[0024] Furthermore, the integrated magnesium alloy melting and casting equipment further includes a dehumidification device, which is connected to the working chamber unit. The dehumidification device at least includes an evaporator, which is used to cool and condense the moisture in the air and also used to maintain the indoor temperature using the recovered condensation heat.

[0025] Furthermore, the integrated magnesium alloy melting and casting equipment further includes an adjustment device;

[0026] The adjustment device includes a collection module and an analysis module;

[0027] The collection module includes a temperature collection unit, a vacuum degree collection unit, and a humidity collection unit, which are respectively used to collect the temperature, vacuum degree, and humidity in the sealed working chamber; the analysis module is used to compare the collected temperature, vacuum degree, and humidity in the sealed working chamber with preset indicators to obtain a control result.

[0028] In a further solution, collecting and intelligently controlling all the casting parameters in the working cabin unit can ensure the accuracy of the parameters in the casting process and subsequent quality statistics and improvement.

[0029] Compared with the prior art, the advantages of the present utility model include:

[0030] In a magnesium alloy melting and casting integrated device provided by the present utility model, the melting and pouring unit is arranged in the sealed working chamber of the working cabin unit, that is, the melting and pouring of magnesium alloy are integrally sealed to achieve oxygen-free melting and casting integration. In addition, there are at least a first transition chamber, a second transition chamber, and a third transition chamber, which send the materials before melting and casting into the interior of the working cabin unit body under an oxygen-free condition and output the cast magnesium alloy under an oxygen-free condition, ensuring that the magnesium alloy is not oxidized and improving the yield of the magnesium alloy finished product.

[0031] In a magnesium alloy melting and casting integrated device provided by the present utility model, by extending both ends of the second conveying mechanism into the second transition chamber and the third transition chamber respectively, it can ensure that the transfer process of the magnesium alloy is also in an oxygen-free environment, improving the yield of the magnesium alloy finished product. In addition, the melting and pouring unit can place the materials required for melting and casting or the cast magnesium alloy on the first conveying mechanism and the second conveying mechanism, realizing unmanned automated operation, reducing labor and production process fluctuations.

[0032] In a magnesium alloy melting and casting integrated device provided by the present utility model, through a vacuum pumping device, any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber can be evacuated to make its vacuum degree reach a preset value or above. In addition, the vacuum pumping device can be used simultaneously with an inert gas supply device to wash the working cabin unit body, so as to more precisely control the oxygen content and ensure that the magnesium alloy is not oxidized throughout the melting and casting process.

[0033] In a magnesium alloy melting and casting integrated device provided by the present utility model, through an adjusting device, the oxygen content, temperature, and humidity in the working cabin unit body can be precisely controlled to ensure that the magnesium alloy is not oxidized during the melting and pouring process, eliminate the oxidation inclusion defects of the magnesium alloy, and achieve high-quality casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a top view of a magnesium alloy melting and casting integrated device provided by an embodiment of the present utility model;

[0035] Figure 2 is Figure 1 a front view of a magnesium alloy melting and casting integrated device in the A direction of

[0036] Reference Signs:

[0037] 1. Sealed working chamber; 2. Melting furnace; 3. Ladle rack; 4. Manipulator; 5. First transition chamber; 6. Second transition chamber; 7. Third transition chamber; 8. Motorized roller conveyor; 9. Vacuum pump; 10. Argon gas cylinder; 11. Inert gas recovery tank; 12. Inert gas recovery transition tank; 13. Compressor; 14. First valve; 15. Second valve. Specific embodiments

[0038] In view of the deficiencies in the prior art, the inventors of this case, through long-term research and a large number of practices, were able to propose the technical solution of the present utility model. The following will further explain the technical solution, its implementation process, principles, etc.

[0039] As Figure 1 - Figure 2 , in a specific embodiment disclosed in the present utility model, a magnesium alloy melting and casting integrated device includes a working cabin unit, a melting and pouring unit, a control unit, and a conveying unit.

[0040] The working cabin unit includes a sealed working chamber 1 and at least one first transition chamber 5, at least one second transition chamber 6, and at least one third transition chamber 7 arranged around the sealed working chamber. Any one of the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7 has two working states of being in communication with and being hermetically isolated from the sealed working chamber 1.

[0041] The melting and pouring unit is arranged in the sealed working chamber 1 and is at least used to perform the processes of melting, refining, and pouring magnesium alloy; the control unit is arranged in the sealed working chamber 1 and is used to control the melting and pouring unit; the conveying unit is at least used to convey materials between two transition chambers and between each transition chamber and the sealed working chamber 1.

[0042] Specifically, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7 adopt a double-door structure to surround the sealed working chamber 1.

[0043] It can be understood that the melting and pouring unit at least includes a melting furnace 2 and a ladle rack 3. The control unit can be a manipulator 4. It should be noted that the mold in the working cabin unit is not limited to a sand mold, but can also be an investment mold, a metal mold, a gypsum mold, etc. The casting method can be gravity casting, low pressure, differential pressure, and other counter-gravity casting methods, which are not limited here.

[0044] In this solution, the melting and pouring unit is arranged in the sealed working chamber 1 of the working cabin unit, that is, the melting and pouring of magnesium alloy are hermetically sealed as a whole to achieve oxygen-free melting and casting integration. In addition, there are at least a first transition chamber 5, a second transition chamber 6, and a third transition chamber 7, which send the materials before melting and casting into the interior of the working cabin unit body under anaerobic conditions and output the cast magnesium alloy under anaerobic conditions to ensure that the magnesium alloy is not oxidized and improve the yield of magnesium alloy products.

[0045] In some embodiments, the conveying unit includes:

[0046] A first conveying mechanism, which moves between the first transition chamber 5 and the sealed working chamber 1 and is at least used to convey the furnace charge into the melting and pouring unit;

[0047] A second conveying mechanism, which moves between the second transition chamber 6 and the sealed working chamber 1 and is at least used to convey the mold into the melting and pouring unit; the second conveying mechanism also moves between the sealed working chamber 1 and the third transition chamber 7 and is at least used to output the finished product.

[0048] Such as Figure 1 , along the C direction, the first conveying mechanism moves between the first transition chamber 5 and the sealed working chamber 1 and is used to convey the furnace charge into the melting furnace 2. The first conveying mechanism here can be a motorized roller table.

[0049] Along the B-B' direction, the second conveying mechanism inputs the mold between the second transition chamber and the sealed working chamber. The manipulator 4 performs melting, refining, and pouring processes on the input mold and furnace charge. After the melting and casting are completed, the second conveying mechanism outputs the finished product between the sealed working chamber and the third transition chamber.

[0050] In a further embodiment, by extending the two ends of the second conveying mechanism into the second transition chamber 6 and the third transition chamber 7 respectively, it can be ensured that the transfer process of the magnesium alloy is also in an oxygen-free environment, improving the yield of the magnesium alloy finished product. In addition, the control unit acts on the melting and pouring unit, and can place the materials required for melting and casting or the magnesium alloy after melting and casting on the first conveying mechanism and the second conveying mechanism, realizing unmanned automated operation, reducing manpower and production process fluctuations.

[0051] Preferably, the second conveying mechanism includes a motorized roller table 8, and the motorized roller table 8 includes a plurality of rollers, brackets, and columns, and the roller shafts are fixed in the brackets; the upper part of the brackets is connected to the brackets.

[0052] Please refer to Figure 2 , in some embodiments, the integrated magnesium alloy melting and casting equipment further includes:

[0053] A vacuum pumping device, which cooperates with the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7 and is used to adjust the vacuum degree of any one of the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7.

[0054] In a further embodiment, through a vacuum pumping device, any one of the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7 can be evacuated to a vacuum degree reaching a preset value or above. In addition, the vacuum pumping device can be used simultaneously with the inert gas supply device to purge the working chamber unit body, so as to more precisely control the oxygen content and ensure that the magnesium alloy is not oxidized during the entire process of melting and casting.

[0055] Preferably, the vacuum pumping device includes a vacuum pump 9 and an exhaust pipe; one end of the exhaust pipe is connected to the vacuum pump 9, and the other end is configured to cooperate with the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7, and is used to introduce an inert gas into any one of the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7.

[0056] In some embodiments, the integrated magnesium alloy melting and casting equipment further includes:

[0057] An inert gas supply device, which is configured to cooperate with the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7, and is used to introduce an inert gas into any one of the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7.

[0058] Preferably, the inert gas supply device includes a gas supply cylinder and a gas transmission pipe connected to the gas supply cylinder; the gas transmission pipe is connected to the working chamber unit. The inert gas supply device can be an argon gas cylinder 10 and a gas transmission pipe. Compared with other inert gases, argon has high stability and inertness. It does not react with other substances at room temperature and is also insoluble in liquid metals at high temperatures, and its superiority can be more prominently demonstrated when welding non-ferrous metals.

[0059] In some embodiments, the integrated magnesium alloy melting and casting equipment further includes:

[0060] An inert gas recovery device, which cooperates with the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7, and is used to extract inert gas from any one of the sealed working chamber 1, the first transition chamber 5, the second transition chamber 6, and the third transition chamber 7. Preferably, the inert gas recovery device includes an inert gas recovery transition tank 12, a compressor 13, an inert gas recovery tank 11, a first valve 14, and a second valve 15. When the second valve 15 is opened and the first valve 14 is closed, it is used to evacuate the working cabin. When the second valve 15 is closed and the first valve 14 is opened, it is used to pump the protective gas in the working cabin into the gas storage tank for recycling. In a specific implementation scenario, the first valve 14 is opened and the second valve 15 is closed, and the vacuum pump 9 is used to extract the excess inert gas in the sealed working chamber 1 and transfer the extracted inert gas to the inert gas recovery transition tank 12. The compressor 13 is used to pressurize the inert gas in the inert gas recovery transition tank 12 and recover it into the inert gas recovery tank 11.

[0061] Preferably, the inert gas recovery device and the vacuum extraction device can be integrally arranged.

[0062] Specifically, when gas cleaning is performed on the working cabin unit, the first valve 14 connected to the vacuum pump 9 is closed and the second valve 15 is opened. At this time, the gas extracted by the vacuum pump 9 does not enter the inert gas recovery transition tank 12. The inert gas supply device supplies inert gas to the working cabin unit for protection. After the pouring work is completed, the vacuum pump 9 and the first valve 14 are opened, and the second valve 15 is closed, so that the inert gas enters the inert gas recovery transition tank 12, and then is further compressed, separated, and purified by the compressor 13 and enters the inert gas recovery tank 11. The inert gas recovery tank 11 can be recycled.

[0063] In some embodiments, the magnesium alloy melting and casting integrated equipment further includes a dehumidification device connected to the working cabin unit.

[0064] The dehumidification device at least includes an evaporator, which is used to cool and condense the moisture in the air and also used to maintain the indoor temperature using the recovered condensation heat.

[0065] Specifically, the dehumidifying device can be a dehumidifier. The dehumidifier at least includes an evaporator, a dehumidifying sheet, and a water tank; the dehumidifying sheet is provided with a plurality of pores for adsorbing moisture, and the water tank is used to store the moisture adsorbed by the dehumidifying sheet. The dehumidifier uses the refrigeration principle to reduce the humidity in the air. The dehumidifier at least includes an evaporator. When air passes through the evaporator, due to the cooling effect of the evaporator, the moisture in the air will condense and adsorb on the dehumidifying sheet. The plurality of pores on the dehumidifying sheet can effectively adsorb the moisture in the air. Subsequently, the adsorbed moisture is transferred to the water tank inside the dehumidifier. In order to maintain the indoor temperature, the dehumidifier will also use the recovered condensation heat to heat the air, so as to keep the indoor temperature stable while reducing the relative humidity.

[0066] In a more preferred embodiment, the dehumidifying device is arranged outside the working cabin unit. Because the temperature inside the working cabin unit is relatively high, the freezing method is used for dehumidification, and a dehumidifying sheet is not required. Its working principle is to pump the air inside the working cabin unit into the dehumidifier and perform freezing treatment on the extracted air. At this time, the moisture in the air will deposit, and then the dried air is heated and then introduced into the working cabin unit. The dried air can be heated using the temperature of the melting and casting work, that is, a heat tracing pipe is led out from the working cabin unit to heat the dried air, saving energy consumption.

[0067] In some embodiments, the magnesium alloy melting and casting integrated equipment further includes an adjusting device.

[0068] The adjusting device includes a collection module and an analysis module;

[0069] The collection module includes a temperature collection unit, a vacuum degree collection unit, and a humidity collection unit, which are respectively used to collect the temperature, vacuum degree, and humidity in the sealed working chamber 1; the analysis module is used to compare the temperature, vacuum degree, and humidity collected in the sealed working chamber 1 with the preset indicators to obtain a control result.

[0070] Specifically, the preset indicators here include a preset temperature indicator, a preset vacuum degree indicator, and a preset humidity indicator. The vacuum degree collection unit here can also be set as an oxygen content sensor for collecting the oxygen content in the sealed working chamber 1. Therefore, the preset indicators also include a preset oxygen content indicator.

[0071] In some embodiments, the adjusting device further includes an execution module, which is used to input the control result into the vacuum pumping device to make the vacuum pumping device operate; it is also used to input the control result into the dehumidifying device to make the dehumidifying device operate.

[0072] Specifically, when the humidity is higher than the preset temperature index, the dehumidifier starts; when the temperature is lower than the preset temperature index, the heating device starts, and when the temperature is higher than the set index, the heating device stops. Here, the heating device can be understood as an electric hot air heating system arranged inside the working cabin. At the same time, the electric furnace in the working cabin unit also has an auxiliary heating function when it works. When the oxygen content is higher than the preset oxygen content index, the vacuum pumping device starts and stops pumping when a certain vacuum degree is reached. At the same time, the inert gas supply device starts to fill in inert gas to balance the pressure inside the working cabin unit, and so on in a cycle until the oxygen content reaches the set value.

[0073] In a further implementation, collecting and intelligently controlling all casting parameters in the working cabin unit can ensure the accuracy of the casting process parameters and subsequent quality statistics and improvement.

[0074] Example 1, low vacuum and low-pressure inert gas inside the working cabin unit.

[0075] The specific steps of applying the integrated magnesium alloy melting and casting equipment include:

[0076] S1: First, push the pre-prepared furnace charge, mold and other auxiliary materials into the sealed working chamber from the first transition chamber and the second transition chamber respectively;

[0077] S2: Vacuum pump the working cabin unit body through the vacuum pumping device and stop pumping when the vacuum degree reaches -5 Kpa;

[0078] S3: Fill the sealed working chamber with argon through the argon gas cylinder and the gas pipeline to make its pressure reach +5 Kpa;

[0079] S4: Turn on the melting furnace and the dehumidification device to make the temperature in the sealed working chamber greater than 50 °C and the humidity less than 10%;

[0080] S5: The manipulator sends the furnace charge into the melting furnace for melting and refining;

[0081] S6: The manipulator pours the melted and refined furnace charge on the ladle rack for pouring;

[0082] S6: Output the cast mold after pouring between the sealed working chamber and the third transition chamber through the second conveying mechanism.

[0083] In this Example 1, when applying the integrated magnesium alloy melting and casting equipment, the oxidation inclusion defect rate obtained is 10%.

[0084] Example 2, high vacuum and low-pressure inert gas inside the working cabin unit.

[0085] The specific steps of applying the integrated magnesium alloy melting and casting equipment include:

[0086] S1: First, push the pre-prepared furnace charge, mold, and other auxiliary materials into the sealed working chamber from the first transition chamber and the second transition chamber respectively;

[0087] S2: Evacuate the working chamber unit body through the vacuum pumping device, and stop pumping when the vacuum degree reaches -50 Kpa;

[0088] S3: Fill the sealed working chamber with argon through the argon gas cylinder and the gas pipeline until its pressure reaches +5 Kpa;

[0089] S4: Turn on the melting furnace and the dehumidification device to make the temperature in the sealed working chamber greater than 50 °C and the humidity less than 10%;

[0090] S5: The manipulator sends the furnace charge into the melting furnace for melting and refining;

[0091] S6: The manipulator pours the melted and refined furnace charge on the ladle rack;

[0092] S6: Output the poured mold between the sealed working chamber and the third transition chamber through the second conveying mechanism.

[0093] In this embodiment 2, by applying the magnesium alloy melting and casting integrated equipment, the defect rate of oxide inclusions is 7%.

[0094] Embodiment 3, the inside of the working chamber unit is high vacuum and high-pressure inert gas.

[0095] The specific steps of applying the magnesium alloy melting and casting integrated equipment include:

[0096] S1: First, push the pre-prepared furnace charge, mold, and other auxiliary materials into the sealed working chamber from the first transition chamber and the second transition chamber respectively;

[0097] S2: Evacuate the working chamber unit body through the vacuum pumping device, and stop pumping when the vacuum degree reaches 50 Kpa;

[0098] S3: Fill the sealed working chamber with argon through the argon gas cylinder and the gas pipeline until its pressure reaches +500 Kpa;

[0099] S4: Turn on the melting furnace and the dehumidification device to make the temperature in the sealed working chamber greater than 50 °C and the humidity less than 10%;

[0100] S5: The manipulator sends the furnace charge into the melting furnace for melting and refining;

[0101] S6: The manipulator pours the melted and refined furnace charge on the ladle rack;

[0102] S6: Output the cast mold after pouring between the sealed working chamber and the third transition chamber through the second conveying mechanism.

[0103] In this Embodiment 3, by applying the integrated magnesium alloy melting and casting equipment, the oxidation inclusion defect rate obtained is 2%.

[0104] Comparative Example 1: In the prior art, the specific steps of applying the magnesium alloy melting and casting equipment include:

[0105] S1: First, push the pre-prepared furnace charge, mold and other auxiliary materials into the crucible.

[0106] S2: Then sprinkle a solvent on the furnace charge for protection and energize to heat and melt the furnace charge.

[0107] S3: After the furnace charge melts, perform refining treatment and adjust to the pouring temperature, waiting for pouring. During the melting process, use a solvent or directly introduce a protective gas on the melt surface.

[0108] S4: Lift the melt crucible into the ladle rack for pouring.

[0109] In this Comparative Example 1, by applying the existing magnesium alloy melting and casting equipment, the oxidation inclusion defect rate obtained is 20%.

[0110] In summary, the integrated magnesium alloy melting and casting equipment applied in Embodiment 3 can provide a better oxygen-free environment. In specific real-time scenarios, different solutions can be selected according to the quality requirements of the castings.

[0111] It should be understood that the above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A magnesium alloy melting and casting integrated device, characterized in that, Including: A work cabin unit, including a sealed working chamber and at least one first transition chamber, at least one second transition chamber, and at least one third transition chamber arranged around the sealed working chamber. Any one of the first transition chamber, the second transition chamber, and the third transition chamber has two working states of being in communication with and being hermetically isolated from the sealed working chamber; A melting and pouring unit, arranged in the sealed working chamber, and at least used for performing magnesium alloy melting, refining, and pouring processes; A control unit, arranged in the sealed working chamber, and used for controlling the melting and pouring unit; A conveying unit, at least used for conveying materials between two transition chambers and between each transition chamber and the sealed working chamber.

2. The integrated magnesium alloy melting and casting equipment according to claim 1, wherein, The conveying unit includes: A first conveying mechanism, moving between the first transition chamber and the sealed working chamber, and at least used for conveying furnace charge into the melting and pouring unit; A second conveying mechanism, moving between the second transition chamber and the sealed working chamber, and at least used for conveying a mold into the melting and pouring unit; the second conveying mechanism also moves between the sealed working chamber and the third transition chamber, and at least used for outputting finished products.

3. The integrated magnesium alloy melting and casting equipment according to claim 1, characterized in that It also includes: A vacuum pumping device, cooperating with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber, and used for adjusting the vacuum degree of any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber.

4. The integrated magnesium alloy melting and casting equipment according to claim 3, characterized in that, It also includes: An inert gas supply device, cooperating with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber, and used for introducing inert gas into any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber.

5. The integrated magnesium alloy melting and casting equipment according to claim 4, characterized in that, It also includes: An inert gas recovery device, cooperating with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber, and used for extracting inert gas from any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber; The inert gas recovery device includes an inert gas recovery transition tank, an inert gas recovery tank, and a compressor; the compressor is used for compressing, separating, and purifying the inert gas in the inert gas recovery transition tank and inputting it into the inert gas recovery tank.

6. The integrated magnesium alloy melting and casting equipment according to claim 1, characterized in that, It also includes: A dehumidifying device connected to the work cabin unit. The dehumidifying device at least includes an evaporator, used for cooling and condensing the moisture in the air, and also used for maintaining the indoor temperature using the recovered condensation heat.

7. The integrated magnesium alloy melting and casting equipment according to claim 1, characterized in that, It also includes an adjusting device; the adjusting device includes a collection module and an analysis module; The collection module includes a temperature collection unit, a vacuum degree collection unit, and a humidity collection unit, respectively used for collecting the temperature, vacuum degree, and humidity in the sealed working chamber; the analysis module is used for comparing the collected temperature, vacuum degree, and humidity in the sealed working chamber with preset indicators to obtain a control result.

8. The integrated magnesium alloy melting and casting equipment according to claim 4, characterized in that, The inert gas supply device includes a gas supply cylinder and a gas pipeline connected to the gas supply cylinder; the gas pipeline is connected to the work cabin unit.

9. The integrated magnesium alloy melting and casting equipment according to claim 3, characterized in that, The vacuum pumping device includes a vacuum pump and an exhaust pipe; one end of the exhaust pipe is connected to the vacuum pump, and the other end cooperates with the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber, and is used to introduce an inert gas into any one of the sealed working chamber, the first transition chamber, the second transition chamber, and the third transition chamber.

Images