A production method of titanium-containing high-aluminum zinc-aluminum magnesium alloy ingot

Abstract

The application belongs to the technical field of metal alloy, and discloses a production method of titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot. The method comprises the following steps: firstly, melting zinc ingot after heating, then adding aluminum-titanium intermediate alloy after continuously heating to the intermediate temperature of primary smelting, and then smelting after continuously heating to the primary smelting temperature of 800-850 DEG C, and finally, casting to obtain zinc-aluminum-titanium intermediate alloy; secondly, melting aluminum ingot and zinc ingot after heating, then adding zinc-magnesium intermediate alloy after continuously heating to the intermediate temperature of secondary smelting, and then adding zinc-aluminum-titanium intermediate alloy and aluminum-silicon intermediate alloy after continuously heating to the secondary smelting temperature of 580-600 DEG C, and finally, casting to obtain titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot. Through the two smelting steps, the problems of magnesium oxidation loss and the residual problem of large-size TiAl3 phase particles in the alloy ingot can be solved, the size of TiAl3 phase particles in the obtained titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is less than or equal to 5 microns, and the yield of magnesium element is greater than or equal to 96%.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of metal alloys, and particularly relates to a production method of a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium. BACKGROUND

[0002] The high-aluminum zinc-aluminum-magnesium coating is a super-high corrosion-resistant multi-element alloy coating, and has the characteristics of high hardness and high corrosion resistance, and is widely used in the fields of building and photovoltaic. The high-aluminum zinc-aluminum-magnesium coating has a beautiful zinc flower structure, and the control of the size and uniformity of the zinc flower has a decisive influence on the performance. The addition of Ti element in the coating helps to reduce the size of the zinc flower and improve the deformation resistance of the coating.

[0003] The high-aluminum zinc-aluminum-magnesium alloy ingot for producing the high-aluminum zinc-aluminum-magnesium coating product is usually obtained by mixing and melting raw materials of aluminum, magnesium and zinc and then casting. The conventional production method of the high-aluminum zinc-aluminum-magnesium alloy ingot adopts a lower temperature for melting due to the easy oxidation and burning loss of magnesium at high temperature, thereby resulting in a low yield. When producing the high-aluminum zinc-aluminum-magnesium alloy ingot containing Ti, a Ti-containing intermediate alloy ingot, commonly a Ti-Al alloy ingot, is added. The Ti element in the Ti-Al alloy ingot exists in the form of TiAl3 phase particles, and the TiAl3 phase particles have a high melting point. If the conventional low-temperature high-aluminum zinc-aluminum-magnesium alloy ingot production method is adopted, the large-size TiAl3 phase particles are easily left. When the high-aluminum zinc-aluminum-magnesium alloy ingot with large-size TiAl3 phase particles is melted into a zinc pot, the large-size TiAl3 phase particles are brought into the coating during the production of the high-aluminum zinc-aluminum-magnesium coating product, thereby causing the point slag defects and seriously affecting the surface quality. Meanwhile, the large-size TiAl3 phase particles increase the slag amount in the zinc pot, thereby causing harm to the roll system of the zinc pot and greatly reducing the service life of the roll system. SUMMARY

[0004] The present application aims to solve the technical problems existing in the prior art, and provides a production method of a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium. The method can solve the problems of the oxidation and burning loss of magnesium and the residual of large-size TiAl3 phase particles in the alloy ingot through two melting steps, and can improve the defects of large slag amount in the zinc pot and many point slags on the product surface during the subsequent production of the high-aluminum zinc-aluminum-magnesium coating product.

[0005] To solve the technical problems proposed in the present application, the present application provides a production method of a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium, which comprises the following steps:

[0006] 1) first melting: zinc ingots are added into an alloy furnace, and then the zinc ingots are heated to be completely melted, and then the temperature is continuously increased to the intermediate temperature of the first melting, and then the aluminum-titanium intermediate alloy is started to be added, and the temperature is continuously increased, and after the aluminum-titanium intermediate alloy is completely added and stirred to be melted, the temperature is maintained at the first melting temperature for heat preservation melting;

[0007] 2) One casting: after the end of melting and holding, the alloy composition is stirred again to be uniform, then it is placed, the surface dross is removed, and then it is cast to obtain a zinc-aluminum-titanium intermediate alloy;

[0008] 3) Second melting: the aluminum ingot and the zinc ingot are sequentially added into the alloy furnace, and then the temperature is raised to completely melt the aluminum ingot and the zinc ingot, and then the temperature is continuously raised to the second melting intermediate temperature, and then the zinc-magnesium intermediate alloy is added and completely melted, and then the temperature is continuously raised to the second melting temperature, and then the zinc-aluminum-titanium intermediate alloy and the aluminum-silicon intermediate alloy are sequentially added and stirred to be melted;

[0009] 4) Second casting: the refining agent is added to remove the slag, and then the alloy composition is stirred again to be uniform, and then it is placed, the surface dross is removed, and then it is cast to obtain a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium.

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

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

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

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

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

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

[0016] Preferably, the first melting intermediate temperature is 580-620°C.

[0017] In the above scheme, the first melting temperature is 800-850°C, and the holding time is 60-120 min.

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

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

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

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

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

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

[0024] In the above scheme, the secondary smelting temperature is 580-600 DEG C, which is close to the zinc pot temperature during on-site high-aluminum zinc-aluminum-magnesium production, thereby reducing the existence of unmeltable or incompletely melted oxides at the zinc pot temperature and reducing the zinc pot slag production.

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

[0026] In the above scheme, in step 3), the heating rate for heating to complete melting of the aluminum ingot and the zinc ingot is 100-200 DEG C / h, and the heating rate for subsequent heating to the intermediate temperature of the secondary smelting and heating to the secondary smelting temperature is 50-100 DEG C / h.

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

[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 the aluminum ingot, the zinc ingot, the zinc-magnesium intermediate alloy, the zinc-aluminum-titanium intermediate alloy and the aluminum-silicon intermediate alloy).

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

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

[0031] In the above scheme, the TiAl3 phase particle size in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is ≤5 μm, and the magnesium element recovery rate is ≥96%.

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

[0033] The magnesium element in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is easy to be oxidized and burned at high temperature, and the melting point of the titanium-containing intermediate alloy is high, so that the second phase particles in the titanium-containing intermediate alloy need to be melted at high temperature for a long time, thereby causing a contradiction. To solve the contradiction, the present application adopts twice smelting in the production method, high temperature 800-850 DEG C smelting is adopted in the first smelting, and a long holding time is kept to ensure that the second phase particles in the titanium-containing intermediate alloy are melted, and a lower smelting temperature is adopted in the second smelting, and the magnesium intermediate alloy is added at a temperature of 530-560 DEG C to reduce the oxidation and burning loss of the magnesium element and ensure a high yield of the magnesium element in the final alloy, so that the problems of low yield of the magnesium element and the residual of large-size TiAl3 phase particles in the alloy ingot are solved, and the defects of large amount of zinc pot slag and many slag spots on the surface of the product in the subsequent production of high-aluminum zinc-aluminum-magnesium plated layer product are improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The microstructure scanning electron microscope graph of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of Example 1 is enlarged 1000 times.

[0035] Figure 2 The microstructure scanning electron microscope graph of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of Comparative Example 1 is enlarged 1000 times. DETAILED DESCRIPTION

[0036] In order to better understand the present application, the content of the present application is further illustrated by combining the following examples, but the content of the present application is not limited to the following examples.

[0037] Example 1

[0038] The chemical composition and the weight percentage content of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot produced in the present example are as follows: 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 the present example include: 0# zinc ingot, zinc content ≥ 99.995%; aluminum ingot, aluminum content 99.85%; zinc-magnesium intermediate alloy, magnesium content 10%, and the balance is zinc; aluminum-silicon intermediate alloy, silicon content 10%, and the balance is aluminum; aluminum-titanium intermediate alloy, titanium content 3%, and the balance is aluminum.

[0040] The present example produces a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot, including the following steps:

[0041] 1) First smelting: 0# zinc ingot is added into an alloy furnace, and the temperature is raised to the complete melting of the zinc ingot at a rate of 200℃ / h, then the temperature is continuously raised to 600℃ at a rate of 100℃ / h, and the aluminum-titanium intermediate alloy is added in batches, and the temperature is continuously raised at a rate of 100℃ / h, after the aluminum-titanium intermediate alloy is completely added and carbon rod stirring is melted, the smelting temperature is controlled at 820℃, and the holding time is 100 min, to ensure that the high-melting-point TiAl3 phase particles are completely melted;

[0042] 2) First casting: after the smelting holding is completed, stirring for 30 min and then standing for 20 min to make the components uniformly alloyed and avoid segregation of aluminum, zinc and titanium, then after the surface dross is removed, casting is performed to obtain a zinc-aluminum-titanium intermediate alloy containing 0.1% titanium;

[0043] 3) Second smelting: aluminum ingot and zinc ingot are sequentially added into the alloy furnace, and the temperature is raised to the complete melting of the aluminum ingot and the zinc ingot at a rate of 200℃ / h, the aluminum ingot is pressed into the melt through the zinc ingot to reduce the oxidation of the aluminum ingot, then the temperature is continuously raised to 550℃ at a rate of 100℃ / h, a small amount of zinc-magnesium intermediate alloy is added in multiple times, after it is completely melted, the temperature is continuously raised to 590℃ at a rate of 100℃ / h, and the zinc-aluminum-titanium intermediate alloy and the aluminum-silicon intermediate alloy are sequentially added and fully stirred to confirm that all the materials are completely melted;

[0044] 4) Second casting: 0.3% of sodium fluoride based on the total mass of the second smelting alloy is added, the slag is fully stirred and then removed, then the alloy is stirred again for 30 min to ensure that the alloy components are uniform and not segregated, and then it is stood for 20 min, after the standing is completed, the surface dross is removed, and then casting is performed to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0045] Figure 1 The microstructure scanning electron microscope image of the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot of the embodiment is enlarged 1000 times, and from the image it can be seen that the size of the TiAl3 phase particles in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is ≤5μm.

[0046] After detection, the magnesium element yield of the embodiment is 96%.

[0047] Example 2

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

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

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

[0051] 1) Primary smelting: 0# zinc ingots are added into an alloy furnace, and the temperature is raised to the complete melting of the zinc ingots at a rate of 150℃ / h, and then the temperature is continuously raised to 610℃ at a rate of 80℃ / h, and then aluminum-titanium intermediate alloy is added in batches, and the temperature is continuously raised at a rate of 80℃ / h, after the aluminum-titanium intermediate alloy is completely added and carbon rod stirring is melted, the smelting temperature is controlled at 800℃, and the holding time is 120 min, to ensure that the high-melting-point TiAl3 phase particles are completely melted;

[0052] 2) Primary casting: after the smelting holding is completed, the alloy is stirred for 35 min and then is placed for 25 min, so that the components are uniformly alloyed and segregation of aluminum, zinc and titanium is avoided, and then the surface dross is removed and casting is performed, to obtain a zinc-aluminum-titanium intermediate alloy containing 0.05% titanium;

[0053] 3) Secondary smelting: aluminum ingots and zinc ingots are sequentially added into the alloy furnace, and the temperature is raised to the complete melting of the aluminum ingots and zinc ingots at a rate of 150℃ / h, the aluminum ingots are pressed into the melt through the zinc ingots, which can reduce the oxidation of the aluminum ingots, then the temperature is continuously raised to 555℃ at a rate of 80℃ / h, and zinc-magnesium intermediate alloy is added in small amounts and multiple times, and after it is completely melted, the temperature is continuously raised to 595℃ at a rate of 80℃ / h, and zinc-aluminum-titanium intermediate alloy and aluminum-silicon intermediate alloy are sequentially added and fully stirred to confirm that all the materials are completely melted;

[0054] 4) Secondary casting: 0.2% of refining agent (a mixture of sodium fluoride and ammonium chloride with a mass ratio of 1:1) of the total mass of the secondary smelting alloy is added, the slag is fully stirred and then cleaned, and then the alloy is stirred again for 35 min to ensure that the alloy components are uniform and not segregated, and then the alloy is placed for 25 min, after which the surface dross is removed and casting is performed, to obtain a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium.

[0055] After the alloy ingot is cooled, sampling and detection are performed, the sample is prepared according to the conventional metallographic method, and then is observed under a scanning electron microscope, and the size of the TiAl3 phase particles is ≤5μm under a 1000 times field of view.

[0056] Through detection, the magnesium element yield of the embodiment is 97%.

[0057] Embodiment 3

[0058] The embodiment produces a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium, and the chemical composition and weight percentage content are as follows: aluminum 45%, magnesium 1.5%, silicon 1.4%, titanium 0.003%, and the balance being zinc and unavoidable impurities.

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

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

[0061] 1) Primary smelting: 0# zinc ingot is added to the alloy furnace, and the temperature is raised to the complete melting of the zinc ingot at a rate of 200 ℃ / h, and then the temperature is continuously raised to 605 ℃ at a rate of 50 ℃ / h, and the aluminum-titanium intermediate alloy is added in batches, and the temperature is continuously raised at a rate of 50 ℃ / h, after the aluminum-titanium intermediate alloy is completely added and the carbon rod is stirred to melt, the smelting temperature is controlled at 810 ℃, and the holding time is 110 min, to ensure that the high-melting-point TiAl3 phase particles are completely melted;

[0062] 2) Primary casting: after the smelting holding is completed, the alloy is stirred for 40 min and then left for 30 min to make the components uniformly alloyed and avoid segregation of aluminum, zinc and titanium, and then the surface dross is removed and cast to obtain a zinc-aluminum-titanium intermediate alloy containing 0.15% titanium;

[0063] 3) Secondary smelting: aluminum ingot and zinc ingot are sequentially added to the alloy furnace, and the temperature is raised to the complete melting of the aluminum ingot and the zinc ingot at a rate of 200 ℃ / h, the aluminum ingot is pressed into the melt through the zinc ingot to reduce the oxidation of the aluminum ingot, then the temperature is continuously raised to 545 ℃ at a rate of 50 ℃ / h, a small amount of zinc-magnesium intermediate alloy is added in multiple times, and after it is completely melted, the temperature is continuously raised to 585 ℃ at a rate of 50 ℃ / h, and the zinc-aluminum-titanium intermediate alloy and the aluminum-silicon intermediate alloy are sequentially added and fully stirred to confirm that all the materials are completely melted;

[0064] 4) Secondary casting: 0.4% of aluminum fluoride based on the total mass of the secondary smelted alloy is added, the slag is thoroughly stirred and then cleaned, and then the alloy is stirred again for 40 min to ensure that the alloy components are uniform and not segregated, and then left for 30 min, after which the surface dross is removed and cast to obtain a high-aluminum zinc-aluminum-magnesium alloy ingot containing titanium.

[0065] After the alloy ingot is cooled, samples are taken for detection, the sample is prepared according to the conventional metallographic method, and then observed under a scanning electron microscope, and the size of the TiAl3 phase particles is ≤5 μm under a 1000 times field of view.

[0066] After detection, the magnesium element yield of the embodiment is 98%.

[0067] Comparative Example 1

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

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

[0070] 1) The aluminum ingot and zinc ingot are sequentially added into the alloy furnace, and the temperature is raised to the complete melting of the aluminum ingot and zinc ingot at a rate of 200 ℃ / h, then the temperature is continuously raised to 550 ℃ at a rate of 100 ℃ / h, a small amount of zinc-magnesium intermediate alloy is added for multiple times, after complete melting, the temperature is continuously raised to 590 ℃ at a rate of 100 ℃ / h, the aluminum-titanium intermediate alloy and the aluminum-silicon intermediate alloy are sequentially added, fully stirred and melted, and the temperature is maintained at 590 ℃ for 100 min;

[0071] 2) 0.3% of sodium fluoride based on the total mass of the above alloy raw materials is added, the slag is fully stirred and cleaned, then stirred again for 30 min, and then placed for 20 min, after the end of the placement, the floating slag on the surface is removed, and then poured 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 the comparative example is enlarged by 1000 times, and it can be seen from the image that the TiAl3 phase particle size in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is significantly greater than 5 μm.

[0073] It is detected that the magnesium element yield of the comparative example is 94%.

[0074] Comparative Example 2

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

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

[0077] 1) The aluminum ingot and zinc ingot are sequentially added into the alloy furnace, and the temperature is raised to the complete melting of the aluminum ingot and zinc ingot at a rate of 200 ℃ / h, then the temperature is continuously raised to 600 ℃ at a rate of 100 ℃ / h, then a small amount of zinc-magnesium intermediate alloy, aluminum-titanium intermediate alloy and aluminum-silicon intermediate alloy are added for multiple times, fully stirred and melted, and the temperature is continuously raised to 820 ℃ at a rate of 100 ℃ / h, and the temperature is maintained at 820 ℃ for 100 min;

[0078] 2) 0.3% of sodium fluoride based on the total mass of the above alloy raw materials is added, the slag is fully stirred and cleaned, then stirred again for 30 min, and then placed for 20 min, after the end of the placement, the floating slag on the surface is removed, and then poured to obtain a titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot.

[0079] It is detected that the magnesium element yield of the comparative example is 75%, and the yield is significantly reduced due to high-temperature one-time smelting.

[0080] The above embodiments are merely examples for clarification and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications may be made based on the above descriptions. It is not necessary and impossible to enumerate all implementation methods here, and any obvious variations or modifications derived therefrom are still within the scope of protection of the present 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 until the zinc ingots are completely melted, then continue to heat it to the middle temperature of the primary smelting, start adding aluminum-titanium master alloy, and continue to heat it until all the aluminum-titanium master alloys are added and stirred to melt, then keep the temperature at the primary smelting temperature of 800-850°C for smelting; 2) Primary casting: After smelting and holding, stir again to make the alloy composition uniform, then let it stand, remove the surface slag and cast it to obtain zinc-aluminum-titanium master alloy; 3) Secondary smelting: Add aluminum ingots and zinc ingots to the alloy furnace in sequence, raise the temperature until the aluminum ingots and zinc ingots are completely melted, then continue to raise the temperature to the intermediate temperature of the secondary smelting, add the zinc-magnesium master alloy and wait for it to be completely melted, continue to raise the temperature to the secondary smelting temperature of 580-600°C, then add the zinc-aluminum-titanium master alloy and the aluminum-silicon master alloy in sequence and stir to melt; 4) Secondary casting: adding refining agent to remove slag, then stirring again to make the alloy composition uniform, then letting it stand, removing the slag surface and casting to obtain 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 holding 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 is 100-200°C / h until the zinc ingot is completely melted, and the subsequent heating rate is 50-100°C / h; in step 3), the heating rate is 100-200°C / h until the aluminum ingot and the zinc ingot are completely melted, 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: aluminum 45-60%, magnesium 1.5-2.5%, silicon 1.4-1.8%, titanium 0.001-0.01%, 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 TiAl3 phase particle size in the titanium-containing high-aluminum zinc-aluminum-magnesium alloy ingot is ≤5μm, and the magnesium element yield 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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