CN110205508B - Production method and system of wide magnesium alloy sheet - Google Patents
Production method and system of wide magnesium alloy sheet Download PDFInfo
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- CN110205508B CN110205508B CN201910542620.0A CN201910542620A CN110205508B CN 110205508 B CN110205508 B CN 110205508B CN 201910542620 A CN201910542620 A CN 201910542620A CN 110205508 B CN110205508 B CN 110205508B
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- magnesium alloy
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0608—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by caterpillars
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
Abstract
The invention discloses a method and a system for producing a wide magnesium alloy sheet, wherein the method comprises the following steps: a first step; batching, putting magnesium ingot and intermediate alloy, and the second step; smelting a magnesium ingot and an intermediate alloy, and carrying out a third step; keeping the temperature constant, and purifying the magnesium alloy melt; releasing and cooling the magnesium alloy melt, and a fifth step; the wide magnesium alloy sheet produced by the brand new process has the width of more than 1800mm and the rolled thickness of less than 5mm, can meet the technical requirements of automobile, high-speed rail and airplane skin, greatly reduces the cost, and is almost equal to the cost of the aluminum alloy sheet.
Description
Technical Field
The invention relates to a production process of a magnesium alloy plate, in particular to a production method and a system of a wide magnesium alloy sheet.
Background
The prior art of rolled plates on the market has the following methods:
the first is cogging, which is to cast a slab with a thickness of about fifty centimeters and a width within one meter by a semi-continuous casting method, obtain a relatively smooth surface by surface machining, repeatedly roll the slab by a rolling mill after heating, and roll a medium plate with a thickness of more than ten millimeters. The disadvantage is that it is not possible to produce plates of more than 2000mm and sheets of less than 10mm due to process limitations. The magnesium plate blank shrinks sharply in the water cooling process to cause the rough surface of the plate blank due to overlarge thickness in the manufacturing process, and the surface needs to be machined in the rolling process, so that the cost is increased; the method is limited by a crystallizer, and cannot manufacture plates with the width of more than 2 meters or thin plates with the width of less than ten millimeters.
The second is continuous casting and rolling, and the current level can only achieve plates with the width of 800 mm. The disadvantage is that it is limited by the process and cannot produce plates with a width of more than 800 mm.
The third is extrusion, the extrusion machine extrudes the bar billet into a plate with the thickness of more than 3mm, and the plate is produced by secondary rolling, and the method has the advantages that the plate can be produced by rolling, the deformation performance is good, and the plate with different lengths can be produced by rolling. The method has the disadvantages that the method is limited by the influence of the diameter and the extrusion ratio of the extrusion cylinder, and the plate with the width of more than 500 mm cannot be made.
And the fourth is to extrude the large-caliber magnesium alloy pipe by an extruder and then cut open and roll the pipe, which has the advantages of producing a plate with the width less than 3mm, increasing certain width and rolling. The disadvantage is that the transverse direction is easy to pull and crack: the extruded pipe is extruded by four holes in a shunting way, is welded in a die cavity for the second time, has four welding seams, belongs to a seamed pipe, is easy to pull and crack in the transverse direction, is easy to have transverse waves on the surface during rolling, is immature in technology and is also in a groping stage.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production process capable of producing a magnesium alloy plate with the width of more than 1800mm and the thickness of less than 5 mm.
The purpose of the invention is realized by the following technical scheme: a production method of a wide magnesium alloy sheet comprises the following steps:
(1) batching, namely adding magnesium ingots and intermediate alloys;
(2) alloying, namely, filling a magnesium ingot and an intermediate alloy into a magnesium alloy resistance melting furnace from a charging opening for melting, and after the magnesium ingot and the intermediate alloy in the magnesium alloy resistance melting furnace are melted, guiding a magnesium melt in the magnesium alloy resistance melting furnace into a deposition standing resistance furnace through a diversion tank;
(3) keeping the temperature, namely guiding the magnesium alloy melt into a constant temperature pool after completing the alloying of the magnesium melt in a precipitation standing resistance furnace, degassing, removing impurities, slagging off, covering, keeping the temperature, standing and purifying the alloyed magnesium alloy melt in the constant temperature pool, quickly splitting the components of the magnesium alloy melt, and adjusting the magnesium alloy melt according to the analysis result; standing for 45-60 minutes, and controlling the temperature in the furnace at 500 or 550 ℃;
(4) distributing liquid, discharging the melt after standing in a constant temperature pool from the constant temperature pool by means of a thickness control cooling pipe, arranging the thickness control cooling pipe in a water cooling bag under the control of the thickness control cooling pipe to form a magnesium alloy melt with the thickness of less than 5mm and the width of more than 2000mm, pulling by using a stainless steel transmission belt, and adjusting the temperature to be below 500 ℃ under the action of the water cooling bag to form a magnesium alloy solid plate;
(5) and air cooling, namely, using mixed gas of sulfur hexafluoride and carbon dioxide to cool to 300 ℃ or 350 ℃ while pulling the stainless steel transmission belt to form a magnesium alloy sheet, rolling, trimming and metering the magnesium alloy sheet, and warehousing or further processing the magnesium alloy sheet after the magnesium alloy sheet is qualified.
Further, in the step (1) (2), the magnesium alloy is: all magnesium alloys with Al content of 0.5-9.5%, Zn content of 0.2-1.5% and Mn content of 0.15-0.5%.
Further, all the steps in the steps (3), (4) and (5) are under the protection of the mixed gas of sulfur hexafluoride and carbon dioxide.
Furthermore, a liquid distribution port below the feeding pipe in the step (4) is provided with an opening and closing device, the width of the liquid distribution port is larger than 1800mm, and all parts needing protective gas protection are located in a relatively closed space.
Further, the production system of the production method of the wide magnesium alloy sheet comprises a magnesium alloy resistance smelting furnace, a pipeline, a precipitation standing resistance furnace, a thermostatic bath, a feeding pipe, a production bin, a conveying device, a supporting plate, a water cooling bag, a blowing cooling device, a hot rolling mill and a winding machine, wherein the feeding pipe is fixedly connected to the other side of the thermostatic bath, and the feeding pipe, the water cooling bag, the blowing cooling device, the conveying device and the supporting plate are positioned inside the production bin; magnesium alloy resistance smelting pot is through the pipeline with deposit the resistance furnace that stews and be connected, deposit the resistance furnace that stews and be connected with the thermostatic bath through the pipeline, the inlet pipe opposite side is provided with the water-cooling package in order to form thickness controller, water-cooling package top surface is provided with inlet tube, outlet pipe, lead screw, the water-cooling package bottom surface is inlayed and is had temperature sensor, production storehouse top surface fixedly connected with elevator motor, circulating pipe, the lead screw passes production storehouse and connects on elevator motor, the lead screw has two at least, water-cooling package opposite side is provided with the heat sink of blowing, the heat sink top surface of blowing is provided with the intake pipe, be provided with cooling device in the middle of intake pipe and the circulating pipe, the heat sink right side of blowing is provided with the hot rolling mill, the hot rolling mill right side is provided with the rolling machine.
Further, the conveying device comprises a driving wheel, a driven wheel, a stainless steel transmission belt, a guide wheel and a hot roller; the horizontal height of the driving wheel is higher than that of the driven wheel, a plurality of hot rollers are sequentially arranged on one side of the driving wheel, and the width of the stainless steel conveying belt is larger than 2000 mm.
Further, the length of the water cooling package is 500-1200mm, and a plurality of reinforcing ribs are arranged in the water cooling package.
Furthermore, the blowing cooling device comprises a shell and a plurality of air pipes, the shell is fixedly connected to the production bin, the air pipes are fixedly connected to the shell, air spraying heads are inlaid below the air pipes, and the blowing cooling device uses gas which is sulfur hexafluoride and carbon dioxide mixed gas.
Further, the layer board is located the corrosion resistant plate below, the layer board is "concave" style of calligraphy, layer board "concave" style of calligraphy breach width equals corrosion resistant plate conveyer belt width, layer board fixed surface is connected with one deck graphite cake, it has a plurality of temperature sensor to inlay on the graphite cake, just temperature sensor is located the below of the heat sink of blowing.
Compared with the prior art, the invention has the following advantages and beneficial effects: the wide magnesium alloy sheet produced by the brand new process has the width of more than 1800mm and the rolled thickness of less than 5mm, can meet the technical requirements of automobile, high-speed rail and airplane skin, greatly reduces the cost, and is almost equal to the cost of an aluminum alloy sheet.
Drawings
FIG. 1 illustrates the steps of the method of the present invention.
FIG. 2 is a flow chart of the system of the present invention.
Fig. 3 is a partial cross-sectional view of a water-cooled ladle of the present invention.
Fig. 4 is a top view of the cooling device.
In the figure: 1. a magnesium alloy resistance furnace; 2. a pipeline; 3. settling and standing the mixture in a resistance furnace; 4. a constant temperature pool; 5. a feed pipe; 6. a water-cooling bag; 61. a screw rod; 62. a lifting motor; 63. a water inlet pipe; 64. a water outlet pipe; 7. a blowing cooling device; 71. an air inlet pipe; 72. a gas showerhead; 73. an air tube; 74. a housing; 8. a production bin; 81. a water cooling device; 82. a circulation pipe; 9. a hot rolling mill; 10. a conveying device; 101. a driven wheel; 102. a support plate; 103. a temperature sensor; 104. a stainless steel transmission belt; 105. a guide wheel; 106. a hot roller; 107 driving wheels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a method and a system for producing a wide magnesium alloy sheet, the method comprising the steps of:
example 1:
the first step is as follows: batching, namely adding magnesium ingots and intermediate alloys; preferably, the master alloy is: Al-Mn or Mg-Mn master alloys, Al-Li or Mg-Li master alloys.
The second step is that: alloying, namely, filling a magnesium ingot and an intermediate alloy into a magnesium alloy resistance melting furnace from a charging opening for melting, and after the magnesium ingot and the intermediate alloy in the magnesium alloy resistance melting furnace are melted, guiding a magnesium melt in the magnesium alloy resistance melting furnace into a deposition standing resistance furnace through a diversion tank;
the third step: preserving heat, namely guiding the magnesium alloy melt into a constant temperature pool after completing alloying of the magnesium melt in a precipitation standing resistance furnace, performing purification treatment such as degassing, impurity removal, slag removal, covering, heat preservation standing and the like on the alloyed magnesium alloy melt in the constant temperature pool, rapidly splitting components of the magnesium alloy melt, and adjusting the magnesium alloy melt according to an analysis result; adjusting the temperature to 500 ℃ by a heating system in the constant temperature pool, and standing the magnesium alloy solution for 60 minutes; preferably, the high-purity sulfur hexafluoride gas is continuously introduced for protection during standing.
The fourth step: discharging the melt after standing in the constant temperature pool from the constant temperature pool by virtue of a thickness control cooling pipe, arranging the thickness control cooling pipe in a water cooling bag under the control of the thickness control cooling pipe to form a magnesium alloy melt with the thickness of less than 5mm and the width of more than 2000mm, pulling by using a stainless steel transmission belt, and adjusting the temperature to be below 500 ℃ under the action of the water cooling bag; preferably, sulfur hexafluoride gas is continuously introduced into the stainless steel driving belt for protection when the stainless steel driving belt is pulled.
The fifth step: and (3) while pulling the stainless steel transmission belt, air-cooling to 300 ℃ by using mixed gas of sulfur hexafluoride and carbon dioxide to form a magnesium alloy sheet, rolling, trimming and metering the magnesium alloy sheet, and warehousing or further processing the magnesium alloy sheet after being qualified through inspection.
Example 2:
the first step is as follows: batching, namely adding magnesium ingots and intermediate alloys; preferably, the master alloy is: Al-Mn or Mg-Mn master alloys, Al-Li or Mg-Li master alloys.
The second step is that: alloying, namely, filling a magnesium ingot and an intermediate alloy into a magnesium alloy resistance melting furnace from a charging opening for melting, and after the magnesium ingot and the intermediate alloy in the magnesium alloy resistance melting furnace are melted, guiding a magnesium melt in the magnesium alloy resistance melting furnace into a deposition standing resistance furnace through a diversion tank;
the third step: preserving heat, namely guiding the magnesium alloy melt into a constant temperature pool after completing alloying of the magnesium melt in a precipitation standing resistance furnace, performing purification treatment such as degassing, impurity removal, slag removal, covering, heat preservation standing and the like on the alloyed magnesium alloy melt in the constant temperature pool, rapidly splitting components of the magnesium alloy melt, and adjusting the magnesium alloy melt according to an analysis result; adjusting the temperature to 550 ℃ by a heating system in the constant temperature pool, and standing the magnesium alloy solution for 45 minutes; preferably, the high-purity sulfur hexafluoride gas is continuously introduced for protection during standing.
The fourth step: after the melt is stood in the constant temperature pool, after the opening and closing device is opened, the melt is discharged from the constant temperature pool by means of a thickness control cooling pipe, the thickness control cooling pipe is arranged in a water cooling bag, under the control of the thickness control cooling pipe, a magnesium alloy melt with the thickness less than 5mm and the width more than 2000mm is formed on a conveying belt, and the magnesium alloy melt is pulled by a stainless steel driving belt and is adjusted to the temperature below 500 ℃ under the action of the water cooling bag; preferably, sulfur hexafluoride gas is continuously introduced into the stainless steel driving belt for protection when the stainless steel driving belt is pulled.
The fifth step: and (3) while pulling the stainless steel transmission belt, air-cooling to 300 ℃ by using mixed gas of sulfur hexafluoride and carbon dioxide to form a magnesium alloy sheet, rolling, trimming and metering the magnesium alloy sheet, and warehousing or further processing the magnesium alloy sheet after being qualified through inspection.
A production system of a production method of a wide magnesium alloy sheet comprises a magnesium alloy resistance smelting furnace 1, a pipeline 2, a precipitation standing resistance furnace 3, a thermostatic bath 4, a feeding pipe 5 production bin 8, a conveying device 10, a supporting plate 102, a water cooling bag 6, an air blowing and cooling device 7, a hot rolling mill 9 and a winding machine 11, wherein the feeding pipe 5, the water cooling bag 6, the air blowing and cooling device 7, the conveying device 10 and the supporting plate 102 are positioned inside the production bin 8; the magnesium alloy resistance smelting furnace 1 is connected with the precipitation standing resistance furnace 3 through a pipeline 2, the precipitation standing resistance furnace 3 is connected with a constant temperature pool 4 through a pipeline, the other side of the constant temperature pool 4 is fixedly connected with an inlet pipe 5, the other side of the inlet pipe 5 is provided with a thickness controller, the thickness controller comprises a water cooling bag 6, the top surface of the water cooling bag 6 is provided with an inlet pipe 63, an outlet pipe 64 and a lead screw 61, the bottom surface of the water cooling bag 6 is inlaid with a temperature sensor 103, the top surface of the production bin 8 is fixedly connected with a lifting motor 62 and a circulating pipe 82, the lead screw 61 passes through the production bin 8 to be connected with the lifting motor 62, the lead screw 61 is provided with at least two pieces, the other side of the water cooling bag 6 is provided with a blowing cooling device 7, the top surface of the blowing cooling device 7 is provided with an inlet pipe 71, and a cooling device 81 is arranged between the inlet pipe 71 and the circulating pipe 82, the right side of the blowing and cooling device 7 is provided with a hot rolling mill 9, and the right side of the hot rolling mill 9 is provided with a winding machine 11.
In this embodiment, the conveying device 10 includes a driving wheel 107, a driven wheel 101, a stainless steel belt 104, a guide wheel 105, and a heat roller 106, the driving wheel 107 is higher than the driven wheel 101 in level, a plurality of heat rollers 106 are sequentially arranged on one side of the driving wheel 107, and the width of the stainless steel belt 104 is greater than 2000 mm.
In this embodiment, the length of the water cooling package 6 is 500-1200mm, and a plurality of reinforcing ribs are arranged in the water cooling package 6.
In this embodiment, the cooling device 7 that bloies includes casing 74, a plurality of trachea 73, casing 74 fixed connection is on production bin 8, trachea 73 fixed connection is on casing 74, it has jet head 72 to inlay below trachea 73, cooling device 7 that bloies uses gas to be carbon dioxide.
In this embodiment, the supporting plate 102 is located below the stainless steel conveyor belt 104, the supporting plate 102 is in a shape of a Chinese character 'ao', the width of a notch in the shape of the Chinese character 'ao' of the supporting plate 102 is equal to the width of the stainless steel conveyor belt 104, a layer of graphite plate is fixedly connected to the surface of the supporting plate 102, a plurality of temperature sensors 103 are embedded on the graphite plate, and the temperature sensors 103 are located below the air-blowing cooling device 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The production method of the wide magnesium alloy sheet is characterized by comprising the following steps of:
(1) batching, namely adding magnesium ingots and intermediate alloys;
(2) alloying, namely, filling a magnesium ingot and an intermediate alloy into a magnesium alloy resistance melting furnace from a charging opening for melting, and after the magnesium ingot and the intermediate alloy in the magnesium alloy resistance melting furnace are melted, guiding a magnesium melt in the magnesium alloy resistance melting furnace into a deposition standing resistance furnace through a diversion tank;
(3) keeping the temperature, namely guiding the magnesium alloy melt into a constant temperature pool after completing the alloying of the magnesium melt in a precipitation standing resistance furnace, degassing, removing impurities, slagging off, covering, keeping the temperature, standing and purifying the alloyed magnesium alloy melt in the constant temperature pool, quickly splitting the components of the magnesium alloy melt, and adjusting the magnesium alloy melt according to the analysis result; standing for 45-60 minutes, and controlling the temperature in the furnace at 500 or 550 ℃;
(4) distributing liquid, discharging the melt after standing in a constant temperature pool from the constant temperature pool by means of a thickness control cooling pipe, arranging the thickness control cooling pipe in a water cooling bag under the control of the thickness control cooling pipe to form a magnesium alloy melt with the thickness of less than 5mm and the width of more than 2000mm, pulling by using a stainless steel transmission belt, and adjusting the temperature to be below 500 ℃ under the action of the water cooling bag to form a magnesium alloy solid plate;
(5) and air cooling, namely, using mixed gas of sulfur hexafluoride and carbon dioxide to cool to 300 ℃ or 350 ℃ while pulling the stainless steel transmission belt to form a magnesium alloy sheet, rolling, trimming and metering the magnesium alloy sheet, and warehousing or further processing the magnesium alloy sheet after the magnesium alloy sheet is qualified.
2. The method for producing a wide magnesium alloy sheet according to claim 1, characterized in that: the magnesium alloy in the steps (1) and (2) is as follows: all magnesium alloys with Al content of 0.5-9.5%, Zn content of 0.2-1.5% and Mn content of 0.15-0.5%.
3. The method for producing a wide magnesium alloy sheet according to claim 1, characterized in that: and (3), filling all the steps in the steps (3), (4) and (5) under the protection of mixed gas of sulfur hexafluoride and carbon dioxide.
4. The method for producing a wide magnesium alloy sheet according to claim 1, characterized in that: the width of the liquid distribution port is more than 1800mm, and all parts needing protective gas protection are positioned in a relatively closed space.
5. The production system of the production method of the wide magnesium alloy sheet according to claim 1, comprising a magnesium alloy resistance melting furnace, a pipeline, a precipitation standing resistance furnace, a thermostatic bath, a production bin, a conveying device, a supporting plate, a water cooling bag, a blowing cooling device, a hot rolling mill and a winding machine, and is characterized in that: the other side of the constant temperature pool is fixedly connected with a feeding pipe, and the feeding pipe, the water cooling bag, the blowing cooling device, the conveying device and the supporting plate are positioned inside the production bin; magnesium alloy resistance smelting pot is through the pipeline with deposit the resistance furnace that stews and be connected, deposit the resistance furnace that stews and be connected with the thermostatic bath through the pipeline, the inlet pipe opposite side is provided with the water-cooling package in order to form thickness controller, water-cooling package top surface is provided with inlet tube, outlet pipe, lead screw, the water-cooling package bottom surface is inlayed and is had temperature sensor, production storehouse top surface fixedly connected with elevator motor, circulating pipe, the lead screw passes production storehouse and connects on elevator motor, the lead screw has two at least, water-cooling package opposite side is provided with the heat sink of blowing, the heat sink top surface of blowing is provided with the intake pipe, be provided with cooling device in the middle of intake pipe and the circulating pipe, the heat sink right side of blowing is provided with the hot rolling mill, the hot rolling mill right side is provided with the rolling machine.
6. The production system of the wide magnesium alloy sheet according to claim 5, characterized in that: the conveying device comprises a driving wheel, a driven wheel, a stainless steel transmission belt, a guide wheel and hot rollers, wherein the hot rollers are sequentially distributed on one side of the driving wheel, and the width of the stainless steel transmission belt is larger than 2000 mm.
7. The production system of a wide magnesium alloy sheet according to claim 5 or 6, characterized in that: the length of the water cooling package is 500-1200mm, and a plurality of reinforcing ribs are arranged in the water cooling package.
8. The production system of the wide magnesium alloy sheet according to claim 5, characterized in that: the blowing cooling device comprises a shell and a plurality of air pipes, wherein the shell is fixedly connected to the production bin, the air pipes are fixedly connected to the shell, air nozzles are inlaid below the air pipes, and the blowing cooling device uses gas which is sulfur hexafluoride and carbon dioxide mixed gas.
9. The production system of the wide magnesium alloy sheet according to claim 5, characterized in that: the utility model discloses a stainless steel plate, including layer board, layer board and temperature sensor, the layer board is located the stainless steel plate below, the layer board is "concave" style of calligraphy, layer board "concave" style of calligraphy breach width equals the stainless steel plate conveyer belt width, layer board fixed surface is connected with one deck graphite cake, it has a plurality of temperature sensor to inlay on the graphite cake, just temperature sensor is located the below of the heat sink of blowing.
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| CN1203202C (en) * | 2002-10-17 | 2005-05-25 | 山西至诚科技有限公司 | Preparation method of magnesium alloy |
| CN101837368B (en) * | 2010-04-27 | 2012-02-01 | 新星化工冶金材料(深圳)有限公司 | Continuous casting and rolling molding method for magnesium alloy plate |
| CN103290288B (en) * | 2013-06-26 | 2015-10-07 | 重庆大学 | A kind of low cost high-ductility wrought magnesium alloy and preparation method thereof |
| CN103361529B (en) * | 2013-07-26 | 2015-07-08 | 山西银光华盛镁业股份有限公司 | Manufacture method for quasicrystalline-phase reinforced magnesium-alloy sheet strip |
| CN104233031B (en) * | 2014-10-11 | 2016-03-30 | 湖南大学 | A kind of high-strength suitable weldering microalloying AZ91 magnesium alloy and preparation method |
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