Vacuum liquid guide device for magnesium alloy smelting

Abstract

The utility model relates to the technical field of magnesium alloy metallurgy, in particular to a vacuum liquid guide device for magnesium alloy smelting, which comprises a sealing crucible, a sealing cover, a liquid guide pipe, a vacuum pipe, a connecting pipe, an argon bottle and a vacuum pressure gauge, the sealing cover is connected with the sealing crucible and located at the top of the sealing crucible, the liquid guide pipe is connected with the sealing cover, penetrates through the sealing cover and the vacuum pipe to be fixedly connected with the sealing cover, penetrates through the sealing cover and the connecting pipe to be connected with the sealing cover and located at the top of the sealing cover, and the argon bottle is connected with the connecting pipe and located on the side, away from the sealing crucible, of the connecting pipe. The vacuum pressure gauge is fixedly connected with the sealing cover and located on the top of the sealing cover, and the problems that in traditional magnesium alloy smelting, magnesium is prone to oxidation, impurities are not removed thoroughly, and the purity, performance and quality of alloy are reduced are solved.

Description

A vacuum liquid guiding device for magnesium alloy smelting Technical Field

[0001] This utility model relates to the field of magnesium alloy metallurgy technology, and in particular to a vacuum liquid guiding device for magnesium alloy smelting. Background Technology

[0002] In traditional magnesium alloy smelting, magnesium is easily oxidized, leading to a decrease in alloy purity and an increase in defects. At the same time, the solvent added to improve fluidity is difficult to remove completely, affecting the alloy properties. In addition, incomplete removal of inclusions during the smelting process further affects the quality of castings. Summary of the Invention

[0003] The purpose of this invention is to provide a vacuum liquid guiding device for magnesium alloy smelting, which solves the problems in traditional magnesium alloy smelting, such as easy oxidation of magnesium and incomplete removal of impurities, leading to a decline in alloy purity, performance and quality.

[0004] To achieve the above objectives, this utility model provides a vacuum liquid guiding device for magnesium alloy melting, comprising a sealed crucible, a sealing cover, a liquid guiding tube, a vacuum tube, a connecting tube, an argon cylinder, and a vacuum pressure gauge; the sealing cover is connected to the sealed crucible and located at the top of the sealed crucible, the liquid guiding tube is connected to the sealing cover and passes through the sealing cover, the vacuum tube is fixedly connected to the sealing cover and passes through the sealing cover, the connecting tube is connected to the sealing cover and located at the top of the sealing cover, the argon cylinder is connected to the connecting tube and located on the side of the connecting tube away from the sealed crucible, and the vacuum pressure gauge is fixedly connected to the sealing cover and located at the top of the sealing cover.

[0005] The vacuum liquid guiding device for magnesium alloy smelting also includes flange bolts and graphite packing. The liquid guiding pipe adopts a split structure. The sealing cover is fixed to the top of the sealing crucible by the flange bolts 108. The sealing cover and the sealing crucible are sealed by the graphite packing.

[0006] The vacuum liquid guiding device for magnesium alloy smelting further includes a smelting crucible and a cover plate. The smelting crucible is connected to the liquid guiding pipe and is located on the side of the liquid guiding pipe away from the sealed crucible. The cover plate is fixedly connected to the smelting crucible and is located on top of the smelting crucible.

[0007] The middle part of the liquid guide tube has an 85° inclined structure and a diameter of 70mm. The left side of the liquid guide tube is connected to and passes through the middle of the melting crucible. The right side of the liquid guide tube is integrated with the crucible cover and extends into the sealed crucible at a 13° inclination, close to the inner wall of the sealed crucible.

[0008] The vacuum liquid guiding device for the magnesium alloy smelting process further includes a connecting ball valve, which is fixedly connected to the vacuum tube and located outside the connecting ball valve.

[0009] This invention relates to a vacuum liquid guiding device for magnesium alloy smelting. The sealed crucible is used to oxidize the molten magnesium. The sealing cap is used to seal the crucible. The liquid guiding tube draws the molten magnesium from the smelting crucible into the sealed crucible. The vacuum tube connects a vacuum generator to the sealed crucible. An argon cylinder is connected to the sealed crucible via a connecting pipe, providing argon gas to the crucible. A vacuum pressure gauge displays the pressure inside the sealed crucible for easy monitoring. The vacuum generator, connected via a ball valve, reduces the air content inside the sealed crucible and draws pure molten magnesium from the center of the smelting crucible into the sealed crucible via the liquid guiding tube. This prevents oxidation of the molten magnesium while effectively reducing the solvent content, thereby significantly reducing inclusion defects in magnesium castings. This solves the problem in traditional magnesium alloy smelting where magnesium is easily oxidized, impurities are not thoroughly removed, leading to a decline in alloy purity, performance, and quality. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0011] Figure 1 is a schematic diagram of the overall structure of the vacuum liquid guiding device for magnesium alloy melting according to the first embodiment of this utility model.

[0012] In the diagram: 101-Sealed crucible, 102-Sealed cover, 103-Liquid guide tube, 104-Vacuum tube, 105-Connecting tube, 106-Argon cylinder, 107-Vacuum pressure gauge, 108-Flange bolt, 109-Graphite packing, 110-Smelting crucible, 111-Cover plate, 112-Connecting ball valve. Detailed Implementation

[0013] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0014] The first embodiment of this application is as follows:

[0015] Please refer to Figure 1, which is a schematic diagram of the overall structure of the vacuum liquid guiding device for magnesium alloy melting according to the first embodiment of this utility model. This utility model provides a vacuum liquid guiding device for magnesium alloy melting, including a sealed crucible 101, a sealed cover 102, a liquid guiding pipe 103, a vacuum pipe 104, a connecting pipe 105, an argon cylinder 106, a vacuum pressure gauge 107, flange bolts 108, graphite packing 109, a melting crucible 110, a cover plate 111, and a connecting ball valve 112. The aforementioned solution solves the problem in traditional magnesium alloy melting where magnesium is easily oxidized and impurities are not completely removed, leading to a decrease in alloy purity, performance, and quality.

[0016] In this specific embodiment, the sealing cap 102 is connected to the sealing crucible 101 and located at the top of the sealing crucible 101; the liquid guide tube 103 is connected to the sealing cap 102 and passes through the sealing cap 102; the vacuum tube 104 is fixedly connected to the sealing cap 102 and passes through the sealing cap 102; the connecting tube 105 is connected to the sealing cap 102 and located at the top of the sealing cap 102; the argon cylinder 106 is connected to the connecting tube 105 and located on the side of the connecting tube 105 away from the sealing crucible 101; the vacuum pressure gauge 107 is fixedly connected to the sealing cap 102 and located at the top of the sealing cap 102; the sealing crucible 101 is used for oxidizing magnesium liquid; the sealing cap 102 is used for sealing the sealing crucible 101; and the liquid guide tube 103 is used for... The molten magnesium in the melting crucible 110 is drawn into the sealed crucible 101. The vacuum tube 104 is used to connect the vacuum generating device to the sealed crucible 101. The argon cylinder 106 is connected to the sealed crucible 101 through the connecting pipe 105. The argon cylinder 106 is used to supply argon gas to the sealed crucible 101. The vacuum pressure gauge 107 is used to display the pressure inside the sealed crucible 101 to the outside world, which is convenient for detecting the pressure inside the sealed crucible 101. The vacuum generating device connected through the connecting ball valve 112 reduces the air content inside the sealed crucible 101, and the pure molten magnesium in the middle of the melting crucible 110 is drawn into the sealed crucible 101 through the liquid guide pipe 103. This prevents the molten magnesium from oxidizing and effectively reduces the solvent content, thereby greatly reducing inclusion defects in the magnesium casting rod.

[0017] The liquid guide tube 103 has a split structure. The sealing cap 102 is fixed to the top of the sealing crucible 101 by the flange bolts 108. The sealing cap 102 and the sealing crucible 101 are sealed by the graphite packing 109. The flange bolts 108 are used to fix the sealing cap 102, and the graphite packing 109 is used to seal the sealing cap 102 to prevent the air content in the sealing crucible 101 from increasing.

[0018] Secondly, the smelting crucible 110 is connected to the liquid guide pipe 103 and is located on the side of the liquid guide pipe 103 away from the sealing crucible 101. The cover plate 111 is fixedly connected to the smelting crucible 110 and is located on the top of the smelting crucible 110. The smelting crucible 110 is used to smelt magnesium liquid, and the cover plate 111 is used to seal the smelting crucible 110 to prevent impurities from falling into the smelting crucible 110.

[0019] Furthermore, the middle portion of the liquid guide tube 103 adopts an 85° inclined structure. The diameter of the liquid guide tube 103 is 70mm. The left side of the liquid guide tube 103 is connected to and passes through the middle of the melting crucible 110. The right side of the liquid guide tube 103 is integrated with the crucible cover and extends into the sealed crucible 101 at an inclination of 13°, close to the inner wall of the sealed crucible 101. The liquid guide tube 103, which passes through the middle of the melting crucible 110, can easily draw the pure magnesium liquid in the middle of the melting crucible 110 into the liquid guide tube 103 and then guide it into the sealed crucible 101.

[0020] Finally, the connecting ball valve 112 is fixedly connected to the vacuum tube 104 and is located outside the connecting ball valve 112. The connecting ball valve 112 is used to control the rate of the vacuum generating device to prevent the pressure in the sealed crucible 101 from being too low, which would cause air to be drawn into the sealed crucible 101.

[0021] Using the vacuum liquid guiding device for magnesium alloy melting in this embodiment, the sealed crucible 101 is used to oxidize the magnesium liquid, the sealing cover 102 is used to seal the sealed crucible 101, the liquid guiding pipe 103 is used to draw the magnesium liquid from the melting crucible 110 into the sealed crucible 101, the vacuum pipe 104 is used to connect the vacuum generating device to the sealed crucible 101, and the argon cylinder 106 is connected to the sealed crucible 101 through the connecting pipe 105. The argon cylinder 106 is used to supply argon gas to the sealed crucible 101, and the vacuum pressure gauge 107 is used to measure the pressure of the argon gas. The pressure inside the sealed crucible 101 is displayed to the outside, facilitating pressure detection. The vacuum generator connected via the ball valve 112 reduces the air content inside the sealed crucible 101, and the pure magnesium liquid in the middle of the melting crucible 110 is drawn into the sealed crucible 101 through the liquid guide pipe 103. This prevents the magnesium liquid from oxidizing and effectively reduces the solvent content, thereby greatly reducing inclusion defects in the magnesium casting. This solves the problem in traditional magnesium alloy smelting where magnesium is easily oxidized and impurities are not completely removed, leading to a decline in alloy purity, performance, and quality.

[0022] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A vacuum liquid guiding device for magnesium alloy smelting, comprising a sealed crucible, characterized in that, It also includes a sealing cap, a liquid guide tube, a vacuum tube, a connecting tube, an argon cylinder, and a vacuum pressure gauge; the sealing cap is connected to the sealed crucible and is located on top of the sealed crucible, the liquid guide tube is connected to the sealing cap and passes through the sealing cap, the vacuum tube is fixedly connected to the sealing cap and passes through the sealing cap, the connecting tube is connected to the sealing cap and is located on top of the sealing cap, the argon cylinder is connected to the connecting tube and is located on the side of the connecting tube away from the sealed crucible, and the vacuum pressure gauge is fixedly connected to the sealing cap and is located on top of the sealing cap.

2. The vacuum liquid guiding device for magnesium alloy smelting as described in claim 1, characterized in that, The vacuum liquid guiding device for magnesium alloy smelting also includes flange bolts and graphite packing. The sealing cover is fixed to the top of the sealing crucible by the flange bolts, and the sealing cover and the sealing crucible are sealed by the graphite packing.

3. The vacuum liquid guiding device for magnesium alloy smelting as described in claim 1, characterized in that, The vacuum liquid guiding device for magnesium alloy smelting also includes a smelting crucible and a cover plate. The smelting crucible is connected to the liquid guiding pipe and is located on the side of the liquid guiding pipe away from the sealed crucible. The cover plate is fixedly connected to the smelting crucible and is located on top of the smelting crucible.

4. The vacuum liquid guiding device for magnesium alloy smelting as described in claim 3, characterized in that, The middle part of the liquid guide tube adopts an 85° inclined structure and has a diameter of 70mm. The left side of the liquid guide tube is connected to and passes through the middle of the melting crucible. The right side of the liquid guide tube is integrated with the crucible cover and extends into the sealed crucible at a 13° inclination, close to the inner wall of the sealed crucible.

5. The vacuum liquid guiding device for magnesium alloy smelting as described in claim 1, characterized in that, The vacuum liquid guiding device for the magnesium alloy smelting process also includes a connecting ball valve, which is fixedly connected to the vacuum tube and located on the outside of the vacuum tube.

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