A method and system for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot

Abstract

The present invention discloses a method and system for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot. The method includes: S1, detecting the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the main body metal, and the stable main body metal area; S2, detecting the current casting state; S3, according to the current casting state, from the starting state to the stable state, as the pure aluminum casting length of the bottom pure aluminum area increases, reducing the usage amount of cooling water. By reducing the usage amount of cooling water as the pure aluminum casting length of the bottom pure aluminum area increases according to the current casting state and casting stage, the problem of ingot forming during the pure aluminum bottom laying casting of the square ingot is solved without using a water scraping plate, and stable and batch production is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of processing super-strong and super-hard Al-Zn-Mg-Cu wrought aluminum alloy square ingots. More specifically, it relates to a method and system for starting and forming super-strong and super-hard wrought aluminum alloy square ingots. Background Art

[0002] For super-strong and super-hard Al-Zn-Mg-Cu wrought aluminum alloy square ingots, the currently stable and efficient forming process is to use a wiper plate for casting, reduce the longitudinal temperature gradient, perform tempering while casting, improve the plasticity of the ingot, solve the crack problem of the ingot, and achieve batch and stable casting, with a forming rate of over 98%.

[0003] However, without using a wiper plate, it is difficult to form this type of alloy. Although some domestic factories also use pure aluminum bottom laying or low-concentration bottom laying starting casting methods, the forming rate is not high. At the same time, the bottom mixing zone is relatively long and there is a lot of bottom geometric waste under different process paths, seriously affecting the finished product rate.

[0004] Therefore, for super-strong and super-hard Al-Zn-Mg-Cu wrought aluminum alloy square ingots, when directly performing semi-continuous casting without using a water baffle, cracks begin to appear at the bottom of the ingot and extend longitudinally to the gate part, resulting in the inability to form due to through-cracking waste of the ingot. For traditional casting machine systems, the casting can be started and stopped at any time in the initial stage of casting to control the cooling effect of the pure aluminum used for bottom laying, enhance the bottom plasticity, and solve the crack problem at the bottom of the ingot. However, for modern automated casting machines, once the pre-inspection procedure is passed and casting starts, manual intervention in the start-stop operation of the casting machine is impossible, and the cooling intensity of the bottom melt cannot be controlled, resulting in multiple cracks in the mixing zone of the two solutions, extending longitudinally to the gate part for through-cracking and inability to form. Summary of the Invention

[0005] In view of this, the present invention provides a method and system for starting and forming super-strong and super-hard wrought aluminum alloy square ingots, which solve the problem of forming square ingots cast with pure aluminum bottom laying without using a wiper plate, and achieve stable and batch production.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for starting and forming super-strong and super-hard wrought aluminum alloy square ingots, comprising:

[0008] S1, detecting the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the main body metal, and the stable main body metal area;

[0009] S2, detecting the current casting state;

[0010] S3. According to the current casting state, from the starting casting state to the stable state, as the pure aluminum casting length in the bottom pure aluminum area increases, the usage amount of cooling water is reduced.

[0011] Among them, the reduction of the usage amount of cooling water as the pure aluminum casting length in the bottom pure aluminum area increases includes:

[0012] Starting casting state: In the casting length stage of 0 - 100 mm, the usage amount of cooling water is 24 m 3 / h - 20 m 3 / h, and the casting speed is 43 - 45 mm;

[0013] In the casting length stage of 100 - 220 mm, the usage amount of cooling water is 20 m 3 / h - 19.3 m 3 / h, and the casting speed is 45 mm - 48 mm;

[0014] In the casting length stage of 220 - 350 mm, the usage amount of cooling water is 19.3 m 3 / h - 18.7 m3 / h, and the casting speed is 48 mm - 49 mm;

[0015] In the casting length stage of 350 - 500 mm, the usage amount of cooling water is 18.7 m 3 / h - 18.3 m 3 / h, and the casting speed increases to 49 mm - 50 mm;

[0016] Stable state: When the casting length is 500 mm, the usage amount of cooling water is 18.3 m 3 / h, and the casting speed is 50 mm.

[0017] Among them, before the S1, it further includes:

[0018] The pure aluminum for bottom laying enters the main flow channel for flow supply from the three-way at the outlet end of the filtering device.

[0019] Among them, the filling length of the bottom pure aluminum is 40 - 300 mm.

[0020] Among them, before the S1, it further includes: Blocking at least one water hole on the large surface and at least two water holes on the small surface at the corner.

[0021] Among them, the R - angle arc surface at the corner is greater than or equal to 50 mm.

[0022] In addition, the embodiment of the present application further provides a starting casting and forming system for a super - strong and super - hard deformable aluminum alloy square ingot, including:

[0023] A length detection module for detecting the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the base metal, and the stable base metal area;

[0024] A state judgment module for detecting the current casting state;

[0025] A cooling water usage adjustment module, connected to the state judgment module, for reducing the usage amount of cooling water as the pure aluminum casting length of the bottom pure aluminum area increases from the start of casting to the stable state according to the current casting state.

[0026] Among them, it further includes a cooling water usage parameter input module connected to the cooling water usage adjustment module, for inputting the cooling water usage amounts at various casting length stages between 0 and 500 mm from the start of casting to the stable state and the corresponding casting speeds.

[0027] Among them, it further includes a display module connected to the length detection module, the state judgment module, and the cooling water usage adjustment module, for displaying the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the base metal, and the stable base metal area, the current casting state, the current pure aluminum casting length, and the current reduction in the cooling water usage amount.

[0028] Among them, it further includes an alarm module connected to the cooling water usage adjustment module, for sending out alarm information when the cooling water usage amounts at various casting length stages between 0 and 500 mm in the current casting state exceed the threshold.

[0029] Compared with the content of the prior art introduction, the above-mentioned starting and forming method and system for the super-strong and super-hard deformed aluminum alloy square ingot have the following advantages:

[0030] The starting and forming method and system for the super-strong and super-hard deformed aluminum alloy square ingot solve the problem of the ingot forming during the pure aluminum bottom laying casting of the square ingot and achieve stable and batch production by reducing the usage amount of cooling water as the pure aluminum casting length of the bottom pure aluminum area increases according to the current casting state and casting stage, without using a water scraping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0032] Figure 1 Schematic diagram of the step flow of an embodiment of the method for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot provided by an embodiment of the present invention;

[0033] Figure 2 Schematic structural diagram of an embodiment of the system for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot provided by an embodiment of the present invention. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1-2 , Figure 1 Schematic diagram of the step flow of an embodiment of the method for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot provided by an embodiment of the present invention; Figure 2 Schematic structural diagram of an embodiment of the system for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot provided by an embodiment of the present invention.

[0036] A specific embodiment of the present invention provides a method for starting and forming a super-strong and super-hard deformed aluminum alloy square ingot, including:

[0037] S1. Detect the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the main body metal, and the stable main body metal area;

[0038] S2. Detect the current casting state;

[0039] S3. According to the current casting state, from the starting casting state to the stable state, as the pure aluminum casting length of the bottom pure aluminum area increases, reduce the amount of cooling water used.

[0040] By reducing the amount of cooling water used as the pure aluminum casting length of the bottom pure aluminum area increases according to the current casting state and casting stage, the problem of ingot forming during the pure aluminum bottom laying casting of the square ingot is solved without using a water scraping plate, and stable and batch production is achieved.

[0041] The present application does not limit the amount of cooling water used and the casting speed in each stage. In one embodiment, the reducing the amount of cooling water used as the pure aluminum casting length of the bottom pure aluminum area increases includes:

[0042] Starting casting state: In the casting length stage of 0 - 100 mm, the amount of cooling water used is 24 m3 / h - 20 m 3 / h, the casting speed is 43 - 45 mm;

[0043] In the casting length stage of 100 - 220 mm, the water consumption of the cooling water is 20 m 3 / h - 19.3 m 3 / h, the casting speed is 45 mm - 48 mm;

[0044] In the casting length stage of 220 - 350 mm, the water consumption of the cooling water is 19.3 m 3 / h - 18.7 m³ / h, the casting speed is 48 mm - 49 mm;

[0045] In the casting length stage of 350 - 500 mm, the water consumption of the cooling water is 18.7 m 3 / h - 18.3 m 3 / h, the casting speed increases to 49 mm - 50 mm;

[0046] Stable state: When the casting length is 500 mm, the water consumption of the cooling water is 18.3 m 3 / h, the casting speed is 50 mm.

[0047] It should be noted that in this application, including but not limited to the above - mentioned casting length, cooling water consumption, and casting speed, the cooling water consumption and casting speed can remain unchanged in a small stage, or in each small stage, with the change of the casting length, the cooling water consumption and casting speed can be adjusted in real - time, and this adjustment process can be a linear adjustment or can be adjusted by other functions such as quadratic functions.

[0048] In order to further improve the manufacturing efficiency and control the filling length of pure aluminum at the bottom, in one embodiment, before the above - mentioned S1, it further includes:

[0049] The pure aluminum for bottom laying enters the main flow channel for feeding from the three - way at the outlet end of the filtering device.

[0050] Preferably, the filling length of the pure aluminum at the bottom is 40 - 300 mm.

[0051] This application does not limit the filling length of the pure aluminum at the bottom, and it can be adjusted adaptively according to different needs.

[0052] In this application, by controlling the filling length of pure aluminum, calculating the width of different component regions, reasonably matching the corresponding cooling intensity and casting speed, reducing the stress in the mixing zone, maintaining sufficient plasticity and strength, solving the difficulty of ingot forming, replacing the wiper, and eliminating the influence on the front of the mold and the liquid cavity.

[0053] For the convenience of enhancing the regulation of the cooling intensity at the corners of the forming tool, in one embodiment, before the step S1, it further includes: blocking at least one water hole on the large surface and at least two water holes on the small surface at the corner.

[0054] This application does not limit the R-angle arc surface at the corner. Generally, the R-angle arc surface at the corner is greater than or equal to 50 mm.

[0055] In addition, the embodiment of this application also provides a starting and forming system for a super-strong and super-hard deformed aluminum alloy square ingot, including:

[0056] A length detection module 10, which is used to detect the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the main body metal, and the stable main body metal area.

[0057] A state judgment module 20, which is used to detect the current casting state.

[0058] A cooling water usage adjustment module 30, which is connected to the state judgment module and is used to reduce the usage of cooling water according to the current casting state, from the starting state to the stable state, as the filling length of the pure aluminum in the bottom pure aluminum area increases.

[0059] Since the starting and forming system for the super-strong and super-hard deformed aluminum alloy square ingot is the system corresponding to the starting and forming method for the super-strong and super-hard deformed aluminum alloy square ingot and has corresponding beneficial effects, this application does not limit this.

[0060] In order to further optimize the manufacturing parameters, in one embodiment, the starting and forming system for the super-strong and super-hard deformed aluminum alloy square ingot further includes a cooling water usage parameter input module connected to the cooling water usage adjustment module, which is used to input the cooling water usage at each casting length stage between 0 and 500 mm from the starting state to the stable state and the corresponding casting speed.

[0061] This application does not limit the parameter data input method and input device of the cooling water usage parameter input module. It can be input using a physical keyboard or a virtual keyboard, and can be input in front of the device or remotely.

[0062] In order to further improve the management efficiency, in one embodiment, the starting and forming method and system for the super-strong and super-hard deformed aluminum alloy square ingot further include a display module connected to the length detection module 10, the state judgment module 20, and the cooling water usage adjustment module 30, which is used to display the filling lengths of the current bottom pure aluminum area, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the main body metal, the stable main body metal area, the current casting state, the current pure aluminum casting length, and the current reduction in the cooling water usage.

[0063] Through the display module, the operation data and detected data of the device are displayed in real time, improving the management efficiency. The number, installation location, and structure of the display module in this application are not limited.

[0064] Furthermore, to further improve the management efficiency, in one embodiment, the starting and forming system of the super-strong and super-hard deformed aluminum alloy square ingot further includes an alarm module connected to the cooling water usage adjustment module, which is used to send out alarm information when the cooling water usage in each casting length stage between 0 and 500 mm in the current casting state exceeds the threshold.

[0065] By the alarm module sending out alarm information when the cooling water usage in each casting length stage between 0 and 500 mm in the current casting state exceeds the threshold, the equipment maintenance efficiency and management efficiency are improved. This application does not limit the alarm module and alarm information.

[0066] In summary, for the starting and forming method and system of the super-strong and super-hard deformed aluminum alloy square ingot provided in the embodiments of this application, by according to the current casting state and casting stage, as the pure aluminum casting length of the bottom pure aluminum area increases, the cooling water usage is reduced. Without using a wiper, the problem of ingot forming during the pure aluminum bottom laying casting of the square ingot is solved, and stable and batch production is achieved.

[0067] It should be noted that the embodiments in this specification are all described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0068] It should be understood that in this application, if "system", "device", "unit" and / or "module" are used, it is only a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, they can be replaced by other expressions.

[0069] As shown in this application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. An element defined by the statement "comprising one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0070] Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B. The "and / or" herein is merely a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality of" means two or more than two.

[0071] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0072] If a flowchart is used in the present application, the flowchart is used to illustrate the operations performed by the system according to the embodiments of the present application. It should be understood that the previous or subsequent operations do not necessarily need to be executed precisely in sequence. On the contrary, they can be executed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or several steps of operations can be removed from these processes.

[0073] Specific examples are used herein to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A starting casting and forming method for a super-strong and super-hard deformed aluminum alloy square ingot, characterized in that, Including: S1, detecting the filling lengths of the current bottom pure aluminum zone, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the base metal, and the stable base metal zone; S2, detecting the current casting state; S3, according to the current casting state, from the starting casting state to the stable state, as the pure aluminum casting length of the bottom pure aluminum zone increases, reducing the usage amount of cooling water; The reducing the usage amount of cooling water as the pure aluminum casting length of the bottom pure aluminum zone increases includes: Starting casting state: In the casting length stage of 0 - 100 mm, excluding the 100 - mm casting length stage, the usage amount of cooling water is 24 m3 / h - 20 m3 / h, and the casting speed is 43 - 45 mm; In the casting length stage of 100 - 220 mm, excluding the 220 - mm casting length stage, the usage amount of cooling water is 20 m3 / h - 19.3 m3 / h, and the casting speed is 45 mm - 48 mm; In the casting length stage of 220 - 350 mm, excluding the 350 - mm casting length stage, the usage amount of cooling water is 19.3 m3 / h - 18.7 m3 / h, and the casting speed is 48 mm - 49 mm; In the casting length stage of 350 - 500 mm, excluding the 500 - mm casting length stage, the usage amount of cooling water is 18.7 m3 / h - 18.3 m3 / h, and the casting speed increases to 49 mm - 50 mm; Stable state: When the casting length is 500 mm, the usage amount of cooling water is 18.3 m3 / h, and the casting speed is 50 mm.

2. The starting casting and forming method of the super-strong and super-hard deformed aluminum alloy square ingot according to claim 1, characterized in that Before the S1, it also includes: Feeding the pure aluminum for bottom laying into the main flow trough from the tee at the outlet end of the filtering device.

3. The starting and forming method of the super-strong and super-hard deformed aluminum alloy square ingot according to claim 2, characterized in that, The bottom pure aluminum filling length of the bottom pure aluminum zone is 40 - 300 mm.

4. A starting casting and forming system for a super-strong and super-hard deformed aluminum alloy square ingot, characterized in that, Including: A length detection module, used for detecting the filling lengths of the current bottom pure aluminum zone, the mixed part with a higher proportion of pure aluminum, the mixed part with a higher proportion of the base metal, and the stable base metal zone; A state judgment module, used for detecting the current casting state; A cooling water usage amount adjustment module, connected to the state judgment module, used for according to the current casting state, from the starting casting state to the stable state, as the pure aluminum casting length of the bottom pure aluminum zone increases, reducing the usage amount of cooling water; The reducing the usage amount of cooling water as the pure aluminum casting length of the bottom pure aluminum zone increases includes: Starting casting state: In the casting length stage of 0 - 100 mm, excluding the 100 - mm casting length stage, the usage amount of cooling water is 24 m3 / h - 20 m3 / h, and the casting speed is 43 - 45 mm; In the casting length stage of 100 - 220 mm, excluding the 220 - mm casting length stage, the usage amount of cooling water is 20 m3 / h - 19.3 m3 / h, and the casting speed is 45 mm - 48 mm; In the casting length stage of 220 - 350 mm, excluding the 350 - mm casting length stage, the usage amount of cooling water is 19.3 m3 / h - 18.7 m3 / h, and the casting speed is 48 mm - 49 mm; In the casting length stage of 350 - 500 mm (excluding the 500 - mm casting length stage), the cooling water consumption is 18.7 m3 / h - 18.3 m3 / h, and the casting speed increases to 49 - 50 mm; Stable state: When the casting length is 500 mm, the cooling water consumption is 18.3 m3 / h and the casting speed is 50 mm.

5. The starting and forming system for super-strong and super-hard deformed aluminum alloy square ingots according to claim 4, characterized in that, It further includes a cooling water consumption parameter input module connected to the cooling water consumption adjustment module, which is used to input the cooling water consumption at each casting length stage between 0 and 500 mm from the starting casting state to the stable state, and input the corresponding casting speed.

6. The super-strong and super-hard deformed aluminum alloy square ingot starting and forming system according to claim 5, characterized in that It further includes a display module connected to the length detection module, the state judgment module, and the cooling water consumption adjustment module, which is used to display the current filling lengths of the bottom pure aluminum area, the mixed part - pure aluminum - biased area, the mixed part - base - metal - biased area, and the stable base - metal area, the current casting state, the current pure aluminum casting length, and the current reduction in cooling water consumption.

7. The super-strong and super-hard deformed aluminum alloy square ingot starting and forming system according to claim 6, characterized in that It further includes an alarm module connected to the cooling water consumption adjustment module, which is used to give an alarm message when the cooling water consumption at each casting length stage between 0 and 500 mm in the current casting state exceeds the threshold.

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