Production method of titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot

Abstract

The invention belongs to the technical field of metal alloys, and discloses a production method of a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot. The method comprises the following steps: heating a zinc ingot to melt, continuously heating to a primary smelting intermediate temperature, adding an aluminum-titanium intermediate alloy, continuously heating to a primary smelting temperature of 800-850 DEG C, and carrying out heat preservation smelting and casting to obtain a zinc-aluminum-titanium intermediate alloy; and heating the aluminum ingot and the zinc ingot to melt, continuously heating to a secondary smelting intermediate temperature, adding the zinc-magnesium intermediate alloy, continuously heating to a secondary smelting temperature of 580-600 DEG C, sequentially adding the zinc-aluminum-titanium intermediate alloy and the aluminum-silicon intermediate alloy, and casting to obtain the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot. By means of the two smelting steps, the problem of oxidation burning loss of magnesium can be solved, the problem of residues of large-size TiAl3 phase particles in the alloy ingot can also be solved, the size of the TiAl3 phase particles in the obtained titanium-containing high-aluminum zinc aluminum magnesium alloy ingot is smaller than or equal to 5 micrometers, and the yield of the magnesium element is larger than or equal to 96%.

Description

Technical Field

[0001] The invention belongs to the technical field of metal alloys, and in particular relates to a production method of a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot. Background Art

[0002] High aluminum zinc aluminum magnesium coating is a super corrosion-resistant multi-element alloy coating with high hardness and high corrosion resistance. It is widely used in construction, photovoltaic and other fields. High aluminum zinc aluminum magnesium coating has a beautiful zinc flower structure. The control of zinc flower size and uniformity has a decisive influence on the performance. Adding Ti element to the coating helps to reduce the size of zinc flowers and improve the coating's ability to resist deformation.

[0003] High aluminum zinc aluminum magnesium alloy ingots for producing high aluminum zinc aluminum magnesium coating products are usually obtained by mixing raw materials aluminum, magnesium, and zinc through smelting, casting and other process steps. Conventional high aluminum zinc aluminum magnesium alloy ingot production methods generally use lower melting temperatures because magnesium is easily oxidized and burned at high temperatures, resulting in low yields. When producing Ti-containing high aluminum zinc aluminum magnesium alloy ingots, Ti-containing intermediate alloy ingots must be added, and the most common one is the Ti-Al alloy ingot. The Ti element in the Ti-Al alloy ingot is TiAl 3 Phase particles exist, TiAl 3 The melting point of phase particles is high, and the conventional low-temperature high-aluminum zinc aluminum-magnesium alloy ingot production method is easy to produce large-sized TiAl 3 Phase particles remain. Large-sized TiAl 3 When the high aluminum zinc aluminum magnesium alloy ingot with phase particles is melted into the zinc pot to produce high aluminum zinc aluminum magnesium coating products, large-sized TiAl 3 Phase particles will be brought into the coating to cause slag defects, seriously affecting the surface quality. 3 Phase particles in the zinc pot increase the slag production, causing damage to the zinc pot roller system and significantly reducing the service life of the roller system. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot in view of the shortcomings of the prior art. The method can solve the oxidation and burning problem of magnesium and the problem of large-sized TiAl 3 The problem of residual phase particles in the alloy ingot is solved to improve the defects of large amount of zinc pot slag and many slag spots on the product surface during the subsequent production of high-aluminum zinc-aluminum-magnesium coating products.

[0005] In order to solve the technical problem proposed by the present invention, the present invention provides a method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, comprising the following steps:

[0006] 1) Primary smelting: Add zinc ingots into the alloy furnace, heat it up until the zinc ingots are completely melted, then continue to heat it up to the middle temperature of the primary smelting, start to add the aluminum-titanium master alloy, and continue to heat it up. After all the aluminum-titanium master alloys are added and stirred to melt, keep them warm and smelt them at the primary smelting temperature;

[0007] 2) Primary casting: After smelting and heat preservation, stir again to make the alloy composition uniform, then let it stand, remove the surface slag and cast to obtain zinc-aluminum-titanium master alloy;

[0008] 3) Secondary smelting: add aluminum ingots and zinc ingots into the alloy furnace in sequence, heat up until the aluminum ingots and zinc ingots are completely melted, then continue to heat up to the intermediate temperature of the secondary smelting, add zinc-magnesium master alloy and wait for it to be completely melted, continue to heat up to the secondary smelting temperature, add zinc-aluminum-titanium master alloy and aluminum-silicon master alloy in sequence and stir to melt;

[0009] 4) Secondary casting: add refining agent to remove slag, then stir again to make the alloy composition uniform, then let it stand, remove the slag surface and cast to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0010] In the above scheme, the zinc content of the zinc ingot is ≥99.995%.

[0011] In the above solution, the aluminum content of the aluminum ingot is ≥99.85%.

[0012] In the above scheme, the magnesium content of the zinc-magnesium master alloy is 5-15%, and the balance is zinc.

[0013] In the above scheme, the silicon content of the aluminum-silicon master alloy is 5-15%, and the balance is aluminum.

[0014] In the above scheme, the titanium content of the aluminum-titanium master alloy is 1-5%, and the balance is aluminum.

[0015] In the above scheme, the intermediate temperature of the first smelting is 550-650°C.

[0016] Preferably, the intermediate temperature of the primary smelting is 580-620°C.

[0017] In the above scheme, the primary smelting temperature is 800-850°C, and the holding time is 60-120 minutes.

[0018] Preferably, the primary smelting temperature is 810-830° C., and the holding time is 90-110 min.

[0019] In the above scheme, in step 1), the heating rate to completely melt the zinc ingot is 100-200°C / h, and the subsequent heating rate to the intermediate temperature of the first smelting and to the first smelting temperature is 50-100°C / h.

[0020] In the above scheme, the stirring time in step 2) is 30 to 40 minutes, and the standing time is 20 to 30 minutes.

[0021] In the above solution, the titanium content of the zinc-aluminum-titanium master alloy is 0.05-0.15%.

[0022] In the above scheme, the intermediate temperature of the secondary smelting is 530-560°C.

[0023] Preferably, the intermediate temperature of the secondary smelting is 545-555°C.

[0024] In the above scheme, the secondary smelting temperature is 580-600°C, which is close to the zinc pot temperature during on-site high-aluminum zinc-aluminum-magnesium production, reducing the presence of unmelted or incompletely melted oxides at the zinc pot temperature and reducing the amount of slag produced in the zinc pot.

[0025] Preferably, the secondary smelting temperature is 585-595°C.

[0026] In the above scheme, in step 3), the heating rate until the aluminum ingot and the zinc ingot are completely melted is 100-200°C / h, and the subsequent heating rate to the secondary smelting intermediate temperature and the secondary smelting temperature is 50-100°C / h.

[0027] In the above scheme, the refining agent is one of sodium fluoride, aluminum fluoride and ammonium chloride or a mixture of two of them.

[0028] In the above scheme, the addition amount of the refining agent is 0.2-0.5% of the total mass of the secondary smelting alloy (including aluminum ingots, zinc ingots, zinc-magnesium master alloys, zinc-aluminum-titanium master alloys and aluminum-silicon master alloys).

[0029] In the above scheme, the stirring time in step 4) is 30 to 40 minutes, and the standing time is 20 to 30 minutes.

[0030] In the above scheme, the chemical composition and weight percentage content of the titanium-containing high-aluminum-zinc-aluminum-magnesium alloy ingot are: 45-60% aluminum, 1.5-2.5% magnesium, 1.4-1.8% silicon, 0.001-0.01% titanium, and the remainder is zinc and unavoidable impurities.

[0031] In the above scheme, the TiAl in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot 3 The phase particle size is ≤5μm and the magnesium element recovery rate is ≥96%.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The magnesium element in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is easily oxidized and burned at high temperature, while the titanium-containing master alloy has a high melting point and needs to be smelted at a high temperature for a long time to ensure the melting of the second phase particles therein, which leads to a contradiction. In this regard, the present invention adopts two smelting processes in the production method. The first smelting process adopts a high temperature of 800-850°C for smelting, and maintains a long insulation time to ensure the melting of the second phase particles in the titanium-containing master alloy. The second smelting process adopts a lower smelting temperature, and the magnesium master alloy addition temperature is controlled at 530-560°C to reduce the oxidation and burning of the magnesium element, thereby ensuring a higher yield of the magnesium element in the final alloy. Thus, the low yield of the magnesium element and the large size of the TiAl 3 The problem of residual phase particles in the alloy ingot is solved to improve the defects of large amount of zinc pot slag and many slag spots on the product surface during the subsequent production of high-aluminum zinc-aluminum-magnesium coating products. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a scanning electron microscope image of the microstructure of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of Example 1, magnified 1000 times.

[0035] Figure 2 This is a scanning electron microscope image of the microstructure of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of Comparative Example 1, magnified 1000 times. DETAILED DESCRIPTION

[0036] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with the embodiments, but the content of the present invention is not limited to the following embodiments.

[0037] Example 1

[0038] The chemical composition and weight percentage of the titanium-containing high-aluminum-zinc-aluminum-magnesium alloy ingot produced in this embodiment are: aluminum 55%, magnesium 2%, silicon 1.6%, titanium 0.005%, and the balance is zinc and unavoidable impurities.

[0039] The alloy raw materials used in this embodiment include: 0# zinc ingot, zinc content ≥99.995%; aluminum ingot, aluminum content 99.85%; zinc-magnesium master alloy, magnesium content 10%, the balance is zinc; aluminum-silicon master alloy, silicon content 10%, the balance is aluminum; aluminum-titanium master alloy, titanium content 3%, the balance is aluminum.

[0040] This embodiment produces a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, comprising the following steps:

[0041] 1) Primary smelting: Add 0# zinc ingot into the alloy furnace, heat it up at a rate of 200℃ / h until the zinc ingot is completely melted, then continue to heat it up to 600℃ at a rate of 100℃ / h, start to add aluminum-titanium master alloy in batches, and continue to heat it up at a rate of 100℃ / h. After all the aluminum-titanium master alloy is added and stirred and melted with carbon rods, the smelting temperature is controlled at 820℃ and the holding time is 100min to ensure the high melting point TiAl 3 Phase particles are completely melted;

[0042] 2) One-time casting: After smelting and heat preservation, stir for 30 minutes and then stand for 20 minutes to make the components uniformly alloyed and avoid the segregation of aluminum, zinc and titanium. Then remove the surface slag and cast to obtain a zinc-aluminum-titanium master alloy containing 0.1% titanium;

[0043] 3) Secondary smelting: add aluminum ingots and zinc ingots into the alloy furnace in sequence, and heat up at a rate of 200°C / h until the aluminum ingots and zinc ingots are completely melted. The aluminum ingot is pressed into the melt through the zinc ingot to reduce the oxidation of the aluminum ingot. Then continue to heat up to 550°C at a rate of 100°C / h, add zinc-magnesium master alloy in small amounts and multiple times, and after it is completely melted, continue to heat up to 590°C at a rate of 100°C / h, add zinc-aluminum-titanium master alloy and aluminum-silicon master alloy in sequence, and stir thoroughly to confirm that all materials are completely melted;

[0044] 4) Secondary casting: add 0.3% sodium fluoride of the total mass of the secondary smelting alloy, stir thoroughly to form slag, scrape off the slag, and then stir again for 30 minutes to ensure that the alloy composition is uniform and not segregated, and then stand for 20 minutes. After standing, remove the slag surface and cast to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0045] Figure 1 The scanning electron microscope image of the microstructure of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of this embodiment is magnified 1000 times. It can be seen from the figure that the TiAl 3 Phase particle size ≤5μm.

[0046] After testing, the magnesium recovery rate of this embodiment is 96%.

[0047] Example 2

[0048] The chemical composition and weight percentage of the titanium-containing high-aluminum-zinc-aluminum-magnesium alloy ingot produced in this embodiment are: 60% aluminum, 2.2% magnesium, 1.6% silicon, 0.006% titanium, and the balance is zinc and unavoidable impurities.

[0049] The alloy raw materials used in this embodiment include: 0# zinc ingot, zinc content ≥99.995%; aluminum ingot, aluminum content 99.85%; zinc-magnesium master alloy, magnesium content 5%, the balance is zinc; aluminum-silicon master alloy, silicon content 5%, the balance is aluminum; aluminum-titanium master alloy, titanium content 2%, the balance is aluminum.

[0050] This embodiment produces a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, comprising the following steps:

[0051] 1) Primary smelting: Add 0# zinc ingot into the alloy furnace, heat it up at a rate of 150℃ / h until the zinc ingot is completely melted, then continue to heat it up to 610℃ at a rate of 80℃ / h, start to add aluminum-titanium master alloy in batches, and continue to heat it up at a rate of 80℃ / h. After all the aluminum-titanium master alloy is added and stirred and melted with carbon rods, the smelting temperature is controlled at 800℃ and the holding time is 120min to ensure the high melting point TiAl 3 Phase particles are completely melted;

[0052] 2) Primary casting: After smelting and heat preservation, stir for 35 minutes and then stand for 25 minutes to make the components uniformly alloyed and avoid the segregation of aluminum, zinc and titanium. Then remove the surface slag and cast to obtain a zinc-aluminum-titanium master alloy containing 0.05% titanium.

[0053] 3) Secondary smelting: add aluminum ingots and zinc ingots into the alloy furnace in sequence, and heat up at a rate of 150°C / h until the aluminum ingots and zinc ingots are completely melted. The aluminum ingot is pressed into the melt through the zinc ingot to reduce the oxidation of the aluminum ingot. Then continue to heat up to 555°C at a rate of 80°C / h, add zinc-magnesium master alloy in small amounts and multiple times, and after it is completely melted, continue to heat up to 595°C at a rate of 80°C / h, add zinc-aluminum-titanium master alloy and aluminum-silicon master alloy in sequence, and stir thoroughly to confirm that all materials are completely melted;

[0054] 4) Secondary casting: add 0.2% of the total mass of the secondary smelting alloy as a refining agent (a mixture of sodium fluoride and ammonium chloride in a mass ratio of 1:1), stir thoroughly to form slag, scrape off the slag, and then stir again for 35 minutes to ensure that the alloy composition is uniform and not segregated, and then stand for 25 minutes. After standing, remove the slag surface and cast it to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0055] After the alloy ingot is cooled, samples are taken for testing. After conventional metallographic sample preparation, the TiAl 3 Phase particle size ≤5μm.

[0056] After testing, the magnesium recovery rate of this embodiment is 97%.

[0057] Example 3

[0058] The chemical composition and weight percentage of the titanium-containing high-aluminum-zinc-aluminum-magnesium alloy ingot produced in this embodiment are: aluminum 45%, magnesium 1.5%, silicon 1.4%, titanium 0.003%, and the balance is zinc and unavoidable impurities.

[0059] The alloy raw materials used in this embodiment include: 0# zinc ingot, zinc content ≥ 99.995%; aluminum ingot, aluminum content 99.85%; zinc-magnesium master alloy, magnesium content 15%, the balance is zinc; aluminum-silicon master alloy, silicon content 15%, the balance is aluminum; aluminum-titanium master alloy, titanium content 5%, the balance is aluminum.

[0060] This embodiment produces a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, comprising the following steps:

[0061] 1) Primary smelting: Add 0# zinc ingot into the alloy furnace, heat it up at a rate of 200℃ / h until the zinc ingot is completely melted, then continue to heat it up to 605℃ at a rate of 50℃ / h, start to add aluminum-titanium master alloy in batches, and continue to heat it up at a rate of 50℃ / h. After all the aluminum-titanium master alloy is added and stirred and melted with carbon rods, the smelting temperature is controlled at 810℃ and the holding time is 110min to ensure the high melting point TiAl 3 Phase particles are completely melted;

[0062] 2) Primary casting: After smelting and heat preservation, stir for 40 minutes and then stand for 30 minutes to make the components uniformly alloyed and avoid the segregation of aluminum, zinc and titanium. Then remove the surface slag and cast to obtain a zinc-aluminum-titanium master alloy containing 0.15% titanium.

[0063] 3) Secondary smelting: add aluminum ingots and zinc ingots into the alloy furnace in sequence, and heat up at a rate of 200°C / h until the aluminum ingots and zinc ingots are completely melted. The aluminum ingot is pressed into the melt through the zinc ingot to reduce the oxidation of the aluminum ingot. Then continue to heat up to 545°C at a rate of 50°C / h, add zinc-magnesium master alloy in small amounts and multiple times, and after it is completely melted, continue to heat up to 585°C at a rate of 50°C / h, add zinc-aluminum-titanium master alloy and aluminum-silicon master alloy in sequence, and stir thoroughly to confirm that all materials are completely melted;

[0064] 4) Secondary casting: add 0.4% aluminum fluoride of the total mass of the secondary smelting alloy, stir thoroughly to form slag, scrape off the slag, and then stir again for 40 minutes to ensure that the alloy composition is uniform and not segregated, and then let it stand for 30 minutes. After the standing period, remove the slag surface and cast it to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0065] After the alloy ingot is cooled, samples are taken for testing. After conventional metallographic sample preparation, the TiAl 3 Phase particle size ≤5μm.

[0066] After testing, the magnesium recovery rate in this example is 98%.

[0067] Comparative Example 1

[0068] The target composition of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot produced in this comparative example is the same as that in Example 1, and the properties of the alloy raw materials used are the same as those in Example 1, except for the production steps.

[0069] This comparative example produces a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, comprising the following steps:

[0070] 1) Add aluminum ingots and zinc ingots into the alloy furnace in sequence, heat up at a rate of 200°C / h until the aluminum ingots and zinc ingots are completely melted, then continue to heat up to 550°C at a rate of 100°C / h, add zinc-magnesium master alloy in small amounts and multiple times, wait for it to be completely melted, continue to heat up to 590°C at a rate of 100°C / h, add aluminum-titanium master alloy and aluminum-silicon master alloy in sequence, stir and melt them thoroughly, and keep them at 590°C for 100 minutes;

[0071] 2) Add 0.3% sodium fluoride of the total weight of the above alloy raw materials, stir thoroughly to form slag, scrape off the slag, stir again for 30 minutes, let stand for 20 minutes, remove the slag surface after standing, and then cast to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0072] Figure 2 The microstructure scanning electron microscope image of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of this comparative example is magnified 1000 times. It can be seen from the figure that the TiAl 3 The phase particle size is significantly larger than 5 μm.

[0073] After testing, the magnesium recovery rate of this comparative example is 94%.

[0074] Comparative Example 2

[0075] The target composition of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot produced in this comparative example is the same as that in Example 1, and the properties of the alloy raw materials used are the same as those in Example 1, except for the production steps.

[0076] This comparative example produces a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, comprising the following steps:

[0077] 1) Add aluminum ingots and zinc ingots into the alloy furnace in sequence, heat up at a rate of 200°C / h until the aluminum ingots and zinc ingots are completely melted, then continue to heat up to 600°C at a rate of 100°C / h, then add zinc-magnesium master alloy, aluminum-titanium master alloy, and aluminum-silicon master alloy in small amounts and multiple times, stir and melt them thoroughly, and continue to heat up to 820°C at a rate of 100°C / h, and keep at 820°C for 100 minutes;

[0078] 2) Add 0.3% sodium fluoride of the total weight of the above alloy raw materials, stir thoroughly to form slag, scrape off the slag, stir again for 30 minutes, let stand for 20 minutes, remove the slag surface after standing, and then cast to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0079] According to the test, the magnesium recovery rate of this comparative example is 75%. Due to the high-temperature one-time smelting, the recovery rate is significantly reduced.

[0080] The above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above descriptions. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. A method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, characterized in that: The following steps are involved: 1) Primary smelting: Add zinc ingots into the alloy furnace, heat it up until the zinc ingots are completely melted, then continue to heat it up to the middle temperature of the primary smelting, start to add the aluminum-titanium master alloy, and continue to heat it up. After all the aluminum-titanium master alloys are added and stirred to melt, keep them warm and smelt them at the primary smelting temperature of 800-850°C; 2) Primary casting: After smelting and heat preservation, stir again to make the alloy composition uniform, then let it stand, remove the surface slag and cast to obtain zinc-aluminum-titanium master alloy; 3) Secondary smelting: add aluminum ingots and zinc ingots into the alloy furnace in sequence, heat up until the aluminum ingots and zinc ingots are completely melted, then continue to heat up to the intermediate temperature of the secondary smelting, add zinc-magnesium master alloy and wait for it to be completely melted, continue to heat up to the secondary smelting temperature of 580-600°C, then add zinc-aluminum-titanium master alloy and aluminum-silicon master alloy in sequence and stir to melt; 4) Secondary casting: add refining agent to remove slag, then stir again to make the alloy composition uniform, then let it stand, remove the slag surface and cast to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

2. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The intermediate temperature of the first smelting is 550-650°C; the heat preservation smelting time at the first smelting temperature is 60-120 minutes; the intermediate temperature of the second smelting is 530-560°C.

3. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The intermediate temperature of the first smelting is 580-620°C; the first smelting temperature is 810-830°C, and the insulation smelting time is 90-110 minutes; the intermediate temperature of the second smelting is 545-555°C, and the second smelting temperature is 585-595°C.

4. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: In step 1), the heating rate until the zinc ingot is completely melted is 100-200°C / h, and the subsequent heating rate is 50-100°C / h; in step 3), the heating rate until the aluminum ingot and the zinc ingot are completely melted is 100-200°C / h, and the subsequent heating rate is 50-100°C / h.

5. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The titanium content of the zinc-aluminum-titanium master alloy is 0.05-0.15%.

6. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The chemical composition and weight percentage of the titanium-containing high-aluminum-zinc-aluminum-magnesium alloy ingot are: 45-60% aluminum, 1.5-2.5% magnesium, 1.4-1.8% silicon, 0.001-0.01% titanium, and the balance is zinc and unavoidable impurities.

7. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The particle size of TiAl3 phase in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is ≤5μm, and the magnesium element recovery rate is ≥96%.

8. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: In step 2), the stirring time is 30 to 40 minutes and the standing time is 20 to 30 minutes; in step 4), the stirring time is 30 to 40 minutes and the standing time is 20 to 30 minutes.

9. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The refining agent is one of sodium fluoride, aluminum fluoride and ammonium chloride or a mixture of the two. The addition amount of the refining agent is 0.2-0.5% of the total mass of the secondary smelting alloy.

10. The method for producing a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot according to claim 1, characterized in that: The zinc content of the zinc ingot is ≥99.995%; the aluminum content of the aluminum ingot is ≥99.85%; the magnesium content of the zinc-magnesium master alloy is 5-15%, and the balance is zinc; the silicon content of the aluminum-silicon master alloy is 5-15%, and the balance is aluminum; the titanium content of the aluminum-titanium master alloy is 1-5%, and the balance is aluminum.

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