A method for intelligent control of vacuum induction melting and casting speed

Abstract

This invention provides a method for controlling the pouring speed in vacuum induction melting. By establishing an intelligent pouring model for vacuum induction melting, the flow rate of molten steel is monitored in real time through a molten steel flow rate detection system during the pouring of high-temperature alloy molten steel. The remaining weight of molten steel is calculated in real time through the model, and the temperature of molten steel is monitored in real time through a steel flow trough temperature measurement system. This invention significantly improves the intelligence level of pouring in the vacuum induction melting process, effectively reduces the impact of human operation on pouring speed and pouring temperature, ensures that the pouring temperature of molten steel is within a reasonable range, and avoids excessively high or low solidification temperatures.

Description

Technical Field

[0001] This application relates to the field of metallurgical technology, specifically to a method for intelligently controlling the speed of vacuum induction melting and casting. Background Technology

[0002] High-temperature alloys have become indispensable structural materials in aerospace, energy resources, transportation, and major equipment industries. Currently, my country's annual demand for high-temperature alloy materials exceeds 20,000 tons, while the country's annual production is only around 10,000 tons, resulting in a significant supply shortage, primarily due to insufficient production capacity. In the next 10 years, the demand for high-temperature alloy materials is projected to exceed 400,000 tons, placing enormous demands on high-temperature alloy production capacity.

[0003] In the process of vacuum induction melting of high-temperature alloys, the appropriate pouring temperature should be flexibly set according to factors such as different alloy grades, different wall thicknesses, different materials of castings, and the temperature drop of the ladle. During the pouring process, the pouring temperature is closely related to the surface quality of the alloy and casting defects such as shrinkage porosity and cracks. If the pouring temperature is too low, the alloy fluidity will be poor, which will easily lead to incomplete pouring and cold shuts. Moreover, the viscosity of the alloy liquid will increase, which will restrict the upward movement of gas and impurities during the pouring process, resulting in defects such as sand holes and porosity in the casting. If the pouring temperature is too high, the erosion of the mold cavity will be severe, which can easily burn out the mold and shell.

[0004] In the existing production process, by setting a casting temperature range and using the furnace body to gradually tilt the casting vessel, the alloy is cast. However, this process can result in excessively high temperatures in the early stages of casting and excessively low temperatures in the middle and later stages. This can easily lead to problems such as shell burn-through, primary shrinkage cavities, and poor surface quality of the alloy ingot, which affect the product quality and yield of the cast alloy. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a method for intelligently controlling the pouring speed of vacuum induction melting. This method establishes an intelligent pouring model for vacuum induction melting and systematically controls the steel trough temperature measurement system, molten steel flow rate detection system, furnace power supply system, steel trough heating system, and furnace tilting system to achieve dynamic control of the molten steel pouring speed, ensuring that the pouring temperature is controlled within a reasonable range. This method is applicable to 20kg-20T vacuum induction melting equipment. The technical solution adopted in this invention is as follows:

[0006] A method for intelligently controlling the casting speed of vacuum induction melting, the method comprising the following steps:

[0007] Step 1: Establish a vacuum induction melting intelligent casting model, and use this model to control the steel trough temperature measurement system, alloy liquid flow rate detection system, furnace power supply system, steel trough heating system, and furnace tilting system.

[0008] Step 2: Melt and cast the target alloy, and monitor the temperature T of the molten alloy in real time using a thermocouple embedded at the sprue nozzle. 测 The process determines the state of the smelting and casting process. If the smelting and casting process is at a low temperature, proceed to step 3; if the smelting and casting process is at a high temperature, proceed to step 4; if the smelting and casting process is at a normal temperature, proceed to step 5.

[0009] Step 3: When the alloy liquid temperature is at a low temperature, calculate the weight M of the remaining alloy liquid in the melting furnace in real time. 剩余 And based on the current stage of smelting and casting, take corresponding measures and return to step 2;

[0010] Step 4: When the alloy liquid temperature is at a high temperature, the alloy liquid pouring speed V is controlled by adjusting the furnace tilt angle. t Reduce by 10%-50%, then return to step 2;

[0011] Step 5: When the alloy liquid temperature is at a normal level, the alloy liquid pouring speed is reasonable, and pouring is carried out in the normal manner. The weight M of the remaining alloy liquid in the melting furnace is calculated in real time. 剩余 Control the furnace body tilt angle to ensure a stable alloy molten metal pouring speed;

[0012] When melting and casting the target alloy, the entire melting and casting process is divided into three stages based on the weight of the target alloy during the melting and casting process;

[0013] The three stages include the early stage of pouring, the middle stage of pouring, and the late stage of pouring;

[0014] In the early stage of pouring, the relationship M is satisfied. 总 ≥M 剩余 ≥M 总 -B;

[0015] During the middle stage of the pouring process, the relationship M is satisfied. 总 -B>M 剩余 >B;

[0016] At the end of the pouring process, the relationship M is satisfied. 剩余 ≤B;

[0017] Among them, M 剩余 M represents the weight of the remaining molten alloy in the melting furnace, in kg. 总 B represents the total initial weight of the molten alloy in the melting furnace, in kg; B = M 总 / 5, unit: kg;

[0018] When melting and casting the target alloy, the entire melting and casting process is divided into three states based on the temperature of the target alloy liquid during the melting and casting process.

[0019] The three states include low temperature state, normal temperature state, and high temperature state;

[0020] At the aforementioned low temperature state, the relation T satisfies 浇注下 ≤T 测 ≤T 浇注下 +A;

[0021] Under the normal temperature condition, the relationship T is satisfied. 浇注下 +A <T 测 <T 浇注上 -A;

[0022] At the aforementioned high temperature state, the relation T satisfies 浇注上 ≥T 测 ≥T 浇注上 -A;

[0023] Where T 测 T is the temperature detected by a thermocouple at the sprue nozzle on the steel trough. 浇注下 T represents the lower limit of the alloy liquid pouring temperature. 浇注上 The upper limit of the alloy liquid pouring temperature, A = (T 浇注上 -T 浇注下 ) / 5;

[0024] In step 3, corresponding measures are taken according to the current stage of melting and casting, including: dynamically adjusting the current and voltage of the furnace power supply system and the steel trough heating system by using the vacuum induction melting intelligent casting model;

[0025] If the current melting and casting process is in the early stage of casting, the energy required to heat the molten alloy to the midpoint of the tapping temperature is calculated using the following formula:

[0026] Q = CM 剩余 (T 中 -T 测 )

[0027] Where Q is the energy required to heat the remaining alloy liquid, in J; C is the specific heat capacity of the alloy liquid, in J / (kg·℃); T 中 =T 浇注下 +(T 浇注上 -T 浇注下 ) / 2, of which 4 / 5 of the energy, i.e., Q, is provided by the vacuum induction melting furnace. 感应炉 =0.8Q, with 1 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.2Q;

[0028] If the current melting and casting process is in the middle of the casting stage, the energy required to heat the molten alloy to the midpoint of the tapping temperature is calculated using the following formula:

[0029] Q = CM 剩余 (T 中 -T 测 )

[0030] 3 / 5 of the energy, or Q, is provided by a vacuum induction melting furnace. 感应炉 =0.6Q, with 2 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.4Q;

[0031] If the current melting and casting process is in the final stage of casting, the energy required to heat the molten alloy to the midpoint of the tapping temperature is calculated using the following formula:

[0032] Q = CM 剩余 (T 中 -T 测 )

[0033] One-fifth of the energy, Q, is provided by a vacuum induction melting furnace. 感应炉 =0.2Q, with 4 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.8Q.

[0034] Furthermore, in step 1, the alloy liquid flow rate V is monitored in real time by an alloy liquid flow rate detection system. t The weight M of the remaining molten alloy in the melting furnace is calculated in real time using a vacuum induction melting intelligent casting model. 剩余 The temperature of the molten alloy, T, is monitored in real time through a steel flow channel temperature measurement system.

[0035] Furthermore, the alloy liquid is heated through the furnace body power supply system and the steel trough heating system, and the alloy liquid pouring speed is dynamically controlled through the furnace body tilting system.

[0036] Furthermore, the real-time calculation of the weight M of the remaining molten alloy in the melting furnace 剩余 The following formula is used for calculation:

[0037]

[0038] Where V t t represents the pouring speed of the alloy liquid, in kg / s; t represents the pouring time, in s.

[0039] The following technical effects can be achieved through the embodiments of this application:

[0040] (1) The vacuum induction melting intelligent casting model established by the present invention realizes that the casting temperature is always within a reasonable range during the casting process of high temperature alloy liquid, thus avoiding various quality and safety problems caused by the alloy liquid temperature being too high or too low.

[0041] (2) By establishing an intelligent casting model for vacuum induction melting, the casting process is fully automated, significantly improving the intelligence level of casting in the vacuum induction melting process. This effectively reduces the impact of human operation on casting speed and temperature, ensuring that the alloy liquid is within a reasonable range and avoiding excessively high or low temperatures. The primary shrinkage rate in the casting is reduced by ≥5%, the secondary shrinkage rate is reduced by ≥4%, and the alloy yield is increased by ≥3%. This technology effectively promotes the development of vacuum induction melting technology. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic diagram of a method for intelligently controlling the casting speed of vacuum induction melting. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] Figure 1 This is a schematic flowchart of the method for intelligently controlling the vacuum induction melting and casting speed according to the present invention. In one specific embodiment, the method is applied to the intelligent control vacuum induction melting and casting process of a 1.5T melting furnace, and the method includes the following steps:

[0046] Step 1: Establish a vacuum induction melting intelligent casting model, and use this model to control the steel trough temperature measurement system, alloy liquid flow rate detection system, furnace power supply system, steel trough heating system, and furnace tilting system.

[0047] In step 1, the flow rate V of the alloy liquid is monitored in real time by the alloy liquid flow rate detection system. tThe weight M of the remaining molten alloy in the melting furnace is calculated in real time using a vacuum induction melting intelligent casting model. 剩余 The temperature of the molten alloy (T) is monitored in real time using a steel flow channel temperature measurement system. 测 ;

[0048] The alloy liquid is heated by the furnace body power supply system and the steel trough heating system, and the alloy liquid pouring speed is dynamically controlled by the furnace body tilting system.

[0049] The weight M of the remaining molten alloy in the melting furnace is calculated in real time. 剩余 The following formula is used for calculation:

[0050]

[0051] Where V t t represents the pouring speed of the alloy liquid, in kg / s; t represents the pouring time, in s.

[0052] When melting and casting the target alloy, the entire melting and casting process is divided into three stages based on the weight of the target alloy during the melting and casting process;

[0053] The three stages include the early stage of pouring, the middle stage of pouring, and the late stage of pouring;

[0054] In the early stage of pouring, the relationship M is satisfied. 总 ≥M 剩余 ≥M 总 -B;

[0055] During the middle stage of the pouring process, the relationship M is satisfied. 总 -B>M 剩余 >B;

[0056] At the end of the pouring process, the relationship M is satisfied. 剩余 ≤B;

[0057] Among them, M 剩余 M represents the weight of the remaining molten alloy in the melting furnace, in kg. 总 B represents the total initial weight of the molten alloy in the melting furnace, in kg; B = M 总 / 5, unit: kg;

[0058] For example, if alloy A is used as the target alloy, and the initial alloy weight of the target alloy is 1500 kg, then M... 总 =1500kg, B=300kg;

[0059] When 1500kg≥M 剩余 When the weight is ≥1200kg, it is the first pouring period, i.e. the early stage of pouring;

[0060] When 1200kg > M 剩余When the weight exceeds 300 kg, it is the second pouring stage, i.e., the middle stage of pouring;

[0061] When M 剩余 When the weight is ≤300kg, it is the third pouring period, that is, the end of the pouring period.

[0062] When melting and casting the target alloy, the entire melting and casting process is divided into three states based on the temperature of the target alloy liquid during the melting and casting process.

[0063] The three states include low temperature state, normal temperature state, and high temperature state;

[0064] At the aforementioned low temperature state, the relation T satisfies 浇注下 ≤T 测 ≤T 浇注下 +A;

[0065] Under the normal temperature condition, the relationship T is satisfied. 浇注下 +A <T 测 <T 浇注上 -A;

[0066] At the aforementioned high temperature state, the relation T satisfies 浇注上 ≥T 测 ≥T 浇注上 -A;

[0067] Where T 测 T is the temperature detected by a thermocouple at the sprue nozzle on the steel trough. 浇注下 T represents the lower limit of the alloy liquid pouring temperature. 浇注上 The upper limit of the alloy liquid pouring temperature, A = (T 浇注上 -T 浇注下 ) / 5;

[0068] For example, if alloy A is used as the target alloy, and the melting and casting temperature of alloy A is set to 1500℃-1540℃, then T 浇注下 =1500℃, T 浇注上 =1540℃, T 中 =1520℃, A=8℃;

[0069] When 1500℃≤T 测 At ≤1508℃, it is the first state, that is, the low temperature state;

[0070] When 1508℃ < T 测 When the temperature is below 1532℃, it is in the second state, that is, the normal temperature state;

[0071] When 1532℃≤T 测 At ≤1540℃, it is in the third state, namely the high temperature state.

[0072] Step 2: Melt and cast the target alloy, and monitor the temperature T of the molten alloy in real time using a thermocouple embedded at the sprue nozzle. 测 The process determines the state of the smelting and casting process. If the smelting and casting process is at a low temperature, proceed to step 3; if the smelting and casting process is at a high temperature, proceed to step 4; if the smelting and casting process is at a normal temperature, proceed to step 5.

[0073] Step 3: When the alloy liquid temperature is at a low temperature, calculate the weight M of the remaining alloy liquid in the melting furnace in real time. 剩余 And based on the current stage of smelting and casting, take corresponding measures and return to step 2;

[0074] Step 4: When the alloy liquid temperature is at a high temperature, the alloy liquid pouring speed V is controlled by adjusting the furnace tilt angle. t Reduce by 10%-50%, then return to step 2;

[0075] Step 5: When the alloy liquid temperature is at a normal level, the alloy liquid pouring speed is reasonable, and pouring is carried out in the normal manner. The weight M of the remaining alloy liquid in the melting furnace is calculated in real time. 剩余 Control the furnace body tilt angle to ensure a stable alloy molten metal pouring speed;

[0076] In step 3, corresponding measures are taken according to the current stage of melting and casting, including: dynamically adjusting the current and voltage of the vacuum induction melting furnace and the steel trough heating system by the vacuum induction melting intelligent casting model;

[0077] (1) If the current melting and casting is in the early stage of casting, calculate the energy required to heat the alloy liquid to the midline of the tapping temperature. The calculation formula is as follows:

[0078] Q = CM 剩余 (T 中 -T 测 )

[0079] Where Q is the energy required to heat the remaining alloy liquid, in J; C is the specific heat capacity of the alloy liquid, in J / (kg·℃); T 中 =T 浇注下 +(T 浇注上 -T 浇注下 ) / 2, of which 4 / 5 of the energy, i.e., Q, is provided by the vacuum induction melting furnace. 感应炉 =0.8Q, with 1 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.2Q;

[0080] (2) If the current melting and casting is in the middle of the casting process, calculate the energy required to heat the alloy liquid to the midpoint of the tapping temperature. The calculation formula is as follows:

[0081] Q = CM 剩余 (T 中 -T 测 )

[0082] 3 / 5 of the energy, or Q, is provided by a vacuum induction melting furnace. 感应炉 =0.6Q, with 2 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.4Q;

[0083] (3) If the current melting and casting is in the final stage of casting, calculate the energy required to heat the alloy liquid to the midpoint of the tapping temperature. The calculation formula is as follows:

[0084] Q = CM 剩余 (T 中 -T 测 )

[0085] One-fifth of the energy, Q, is provided by a vacuum induction melting furnace. 感应炉 =0.2Q, with 4 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.8Q;

[0086] For example, taking alloy A as the target alloy, when 1500℃≤T 测 When the temperature is ≤1508℃, i.e., in the low-temperature stage, it is necessary to pass through Determine which pouring stage it is in:

[0087] a. When 1500kg≥M 剩余 When the weight is ≥1200kg, i.e., during the early stage of casting, the formula Q = CM is used. 剩余 (1520-T 测 Calculate the energy required to heat the molten alloy to the midpoint of the tapping temperature, of which 4 / 5 of the energy, Q, is provided by the vacuum induction melting furnace. 感应炉 =0.8Q, with 1 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.2Q.

[0088] b. When 1200kg ≥ M 剩余 When the weight is ≥300kg, i.e., during the middle stage of casting, the formula Q = CM is used. 剩余 (1520-T 测 Calculate the energy required to heat the molten alloy to the tapping temperature midline, of which 3 / 5 of the energy, Q, is provided by the vacuum induction melting furnace. 感应炉 =0.6Q, with 2 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.4Q.

[0089] c. When 300kg ≥ M 剩余 At that time, that is, during the middle stage of casting, through Q=CM剩余 Calculations based on (1520-T measurement) show that 1 / 5 of the energy is provided by the vacuum induction furnace, i.e., Qinduction furnace = 0.2Q, and 4 / 5 of the energy is provided by the steel trough heating system, i.e., Qinduction furnace = 0.2Q. 流钢槽 =0.8Q.

[0090] The energy required from the vacuum induction melting furnace and the steel trough heating system is achieved by dynamically adjusting the current and voltage of each through the model.

[0091] a. When 1508℃ < T 测 At temperatures below 1532℃, the pouring temperature falls within a reasonable range; at this point, real-time calculations can be performed. Controlling the furnace tilt angle ensures a stable alloy molten metal pouring speed.

[0092] b. When 1532℃≤T 测 At temperatures ≤1540℃, the furnace is in a high-temperature stage; at this point, the pouring speed V of the molten alloy needs to be controlled by adjusting the furnace tilt angle. t Reduce by 40% to slow down the pouring speed of the molten alloy.

[0093] Through this embodiment, the primary shrinkage rate in the cast alloy ingot of grade A was reduced by 5.5%, the secondary shrinkage rate was reduced by 4.2%, and the alloy yield was increased by 3.2%.

[0094] In summary, the above dynamic control process is realized through the intelligent casting model of vacuum induction melting established by this invention. During the casting of high-temperature alloy melt, the casting temperature is always kept within a reasonable range, avoiding various quality and safety problems caused by excessively high or low alloy melt temperature.

[0095] Furthermore, although the operations are described in a specific order, this should be understood as requiring that such operations be performed in the specific order shown or in sequential order, or requiring that all illustrated operations be performed to achieve the desired result. In certain environments, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented individually or in any suitable sub-combination in multiple implementations.

[0096] Although the subject matter has been described using language specific to structural features and / or device logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A method for intelligently controlling the casting speed of vacuum induction melting, characterized in that, The method includes the following steps: Step 1: Establish a vacuum induction melting intelligent casting model, and use this model to control the steel trough temperature measurement system, alloy liquid flow rate detection system, furnace power supply system, steel trough heating system, and furnace tilting system. Step 2: Melt and cast the target alloy, and monitor the temperature T of the molten alloy in real time using a thermocouple embedded at the sprue nozzle. 测 The process determines the state of the smelting and casting process. If the smelting and casting process is at a low temperature, proceed to step 3; if the smelting and casting process is at a high temperature, proceed to step 4; if the smelting and casting process is at a normal temperature, proceed to step 5. Step 3: When the alloy liquid temperature is at a low temperature, calculate the weight M of the remaining alloy liquid in the melting furnace in real time. 剩余 And based on the current stage of smelting and casting, take corresponding measures and return to step 2; Step 4: When the alloy liquid temperature is at a high temperature, the alloy liquid pouring speed V is controlled by adjusting the furnace tilt angle. t Reduce by 10%-50%, then return to step 2; Step 5: When the alloy liquid temperature is at a normal level, the alloy liquid pouring speed is reasonable, and pouring is carried out in the normal manner. The weight M of the remaining alloy liquid in the melting furnace is calculated in real time. 剩余 Control the furnace body tilt angle to ensure a stable alloy molten metal pouring speed; When melting and casting the target alloy, the entire melting and casting process is divided into three stages based on the weight of the target alloy during the melting and casting process; The three stages include the early stage of pouring, the middle stage of pouring, and the late stage of pouring; In the early stage of pouring, the relationship M is satisfied. 总 ≥M 剩余 ≥M 总 -B; During the middle stage of the pouring process, the relationship M is satisfied. 总 -B>M 剩余 >B; At the end of the pouring process, the relationship M is satisfied. 剩余 ≤B; Among them, M 剩余 M represents the weight of the remaining molten alloy in the melting furnace, in kg. 总 B represents the total initial weight of the molten alloy in the melting furnace, in kg; B = M 总 / 5, unit: kg; When melting and casting the target alloy, the entire melting and casting process is divided into three states based on the temperature of the target alloy liquid during the melting and casting process. The three states include low temperature state, normal temperature state, and high temperature state; At the aforementioned low temperature state, the relation T satisfies 浇注下 ≤T 测 ≤T 浇注下 +A; Under the normal temperature condition, the relationship T is satisfied. 浇注下 +A <T 测 <T 浇注上 -A; At the aforementioned high temperature state, the relation T satisfies 浇注上 ≥T 测 ≥T 浇注上 -A; Where T 测 T is the temperature detected by a thermocouple at the sprue nozzle on the steel trough. 浇注下 T represents the lower limit of the alloy liquid pouring temperature. 浇注上 The upper limit of the alloy liquid pouring temperature, A = (T 浇注上 -T pouring below) / 5; In step 3, corresponding measures are taken according to the current stage of melting and casting, including: dynamically adjusting the current and voltage of the furnace power supply system and the steel trough heating system by using the vacuum induction melting intelligent casting model; If the current melting and casting process is in the early stage of casting, the energy required to heat the molten alloy to the midpoint of the tapping temperature is calculated using the following formula: Q=CM 剩余 (T 中 -T 测 ) Where Q is the energy required to heat the remaining alloy liquid, in J; C is the specific heat capacity of the alloy liquid, in J / (kg·℃); T 中 =T 浇注下 +(T 浇注上 -T 浇注下 ) / 2, of which 4 / 5 of the energy, i.e., Q, is provided by the vacuum induction melting furnace. 感应炉 =0.8Q, with 1 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.2Q; If the current melting and casting process is in the middle of the casting stage, the energy required to heat the molten alloy to the midpoint of the tapping temperature is calculated using the following formula: Q=CM 剩余 (T 中 -T 测 ) 3 / 5 of the energy, or Q, is provided by a vacuum induction melting furnace. 感应炉 =0.6Q, with 2 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.4Q; If the current melting and casting process is in the final stage of casting, the energy required to heat the molten alloy to the midpoint of the tapping temperature is calculated using the following formula: Q=CM 剩余 (T 中 -T 测 ) One-fifth of the energy, Q, is provided by a vacuum induction melting furnace. 感应炉 =0.2Q, with 4 / 5 of the energy, i.e., Q, provided by the steel trough heating system. 流钢槽 =0.8Q.

2. The method according to claim 1, characterized in that, In step 1, the alloy liquid flow rate V is monitored in real time by an alloy liquid flow rate detection system. t The weight M of the remaining molten alloy in the melting furnace is calculated in real time using a vacuum induction melting intelligent casting model. 剩余 The temperature of the molten alloy (T) is monitored in real time using a steel flow channel temperature measurement system. 测 .

3. The method according to claim 1 or 2, characterized in that, The alloy liquid is heated by the furnace body power supply system and the steel trough heating system, and the alloy liquid pouring speed is dynamically controlled by the furnace body tilting system.

4. The method according to claim 1, characterized in that, The weight M of the remaining molten alloy in the melting furnace is calculated in real time. 剩余 The following formula is used for calculation: Where V t t represents the pouring speed of the alloy liquid, in kg / s; t represents the pouring time, in s.

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