Method for improving the hot ductility of invar alloys and its use

Abstract

The application provides a heating method for improving the thermal plasticity of inconel alloy and application thereof, wherein the heating method comprises the following steps: a first heating stage: inconel alloy continuous casting billets are heated to the lower limit temperature of the corresponding Curie temperature range at a first heating rate; a second heating stage: the inconel alloy continuous casting billets treated in the first heating stage are heated to the upper limit temperature of the corresponding Curie temperature range at a second heating rate; the second heating rate is less than the first heating rate; a third heating stage: the inconel alloy continuous casting billets treated in the second heating stage are heated to the holding temperature of 1150-1300 DEG C at the first heating rate and are held. The application slows down the heating of the inconel alloy continuous casting billets by the relatively low second heating rate, slows down the volume expansion rate of the inconel alloy continuous casting billets, and further reduces the internal stress of the inconel alloy continuous casting billets and the possibility of micro-crack generation, so that the thermal plasticity of the inconel alloy continuous casting billets is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of invar alloy, and relates to a heating method for improving the thermal plasticity of invar alloy and application thereof. BACKGROUND

[0002] Ni36 invar alloy is a low-expansion iron-nickel alloy, and an average linear expansion coefficient thereof is less than 1.5*10 -6 / ℃ at 20-200℃. The extremely low thermal expansion coefficient is derived from invar effect, and the invar alloy has positive spontaneous magnetostriction below the Curie temperature. When the temperature decreases, the magnetostriction can compensate for the volume shrinkage caused by the temperature, so that the thermal expansion coefficient of the invar alloy remains basically unchanged at room temperature. Because the invar alloy has excellent thermal expansion performance, the application field of the invar alloy is more and more extensive, and the invar alloy has been applied to fields such as precision instruments and meters, liquefied natural gas transport ship cargo holds and space shuttle composite material molds, and has become an indispensable special material in the industrial field.

[0003] At present, general invar alloy continuous casting billets are extremely prone to cracks under the action of high temperature and certain stress, have poor thermal plasticity, and lead to hot rolling edge cracking, which greatly affects the yield of the invar alloy and reduces the production efficiency. Therefore, in order to solve the problem of hot rolling cracking of the invar alloy continuous casting billet in the actual production process, a heating method for improving the thermal plasticity of the invar alloy needs to be researched. SUMMARY

[0004] In view of the defects in the prior art, the application provides a heating method for improving the thermal plasticity of invar alloy and application thereof, and the main purpose is to improve the thermal plasticity of the invar alloy continuous casting billet, so as to solve the problem of hot rolling cracking caused by poor thermal plasticity of the invar alloy.

[0005] To achieve the above purpose, the application adopts the following technical scheme:

[0006] According to a first aspect of the application, a heating method for improving the thermal plasticity of invar alloy is provided, which comprises the following steps:

[0007] A first heating stage: heating the invar alloy continuous casting billet to the lower limit temperature of the corresponding Curie temperature range at a first heating rate;

[0008] A second heating stage: heating the invar alloy continuous casting billet after the first heating stage to the upper limit temperature of the corresponding Curie temperature range at a second heating rate; the second heating rate is less than the first heating rate;

[0009] A third heating stage: heating the invar alloy continuous casting billet after the second heating stage to a holding temperature of 1150-1300℃ at the first heating rate and holding.

[0010] Further, the second heating rate is v1~3v1, unit: ℃ / s, s is the cross-sectional area of the continuous casting billet, unit: cm 2 ;

[0011] The first heating rate is 0.8v2~1.2v2, unit: ℃ / s, s is the cross-sectional area of the continuous casting billet, unit: cm 2 .

[0012] Further, the elements in the Invar alloy billet include, in mass percentage: Ni: 35.0%~37.0%, C≤0.02%, S≤0.003%, P≤0.003%, Mn: 0.2%~0.4%, Cr≤0.05%, Si≤0.05%; preferably, the mass percentage of the elements in the Invar alloy billet is: C: 0.016%, Si: 0.01%, Mn: 0.24%, P: 0.003%, S: 0.001%, Cr: 0.01%, Ni: 36.14%; the balance is Fe and inevitable impurities.

[0013] Further, the lower limit temperature of the Curie temperature range is 200℃, and the upper limit temperature of the Curie temperature range is 300℃.

[0014] Further, in the first heating stage, the second heating stage and the third heating stage, the Invar alloy continuous casting billet is heated under the protection of inert gas or reducing gas or neutral atmosphere.

[0015] According to the second aspect of the present application, a production method of an Invar alloy product is provided, including the above-mentioned heating method.

[0016] Further, the production method includes the following steps:

[0017] S1: raw materials are prepared according to the composition of Invar alloy, and an Invar alloy continuous casting billet is obtained through smelting and casting;

[0018] S2: the Invar alloy billet is heated and treated by using the heating method according to any one of claims 1-5;

[0019] S3: the billet after the heating treatment in step S2 is deformed.

[0020] Further, the deformation treatment is rolling treatment; and / or

[0021] The deformation treatment further includes water cooling treatment.

[0022] Further, the rolling temperature is 1000℃~1100℃.

[0023] Further, in the S3 step, a high-pressure water phosphorus removal operation is further included before the deformation treatment.

[0024] Compared with the prior art, the application has the following beneficial effects:

[0025] The application provides a heating method for improving the thermal plasticity of inconel alloy and application thereof, wherein the heating method comprises the following steps: heating the inconel alloy continuous casting blank at a relatively high first heating rate when the inconel alloy continuous casting blank is out of the Curie temperature range, reducing the heating time, and slowing down the heating of the inconel alloy continuous casting blank at a relatively low second heating rate when the inconel alloy continuous casting blank is in the Curie temperature range, so as to slow down the volume expansion rate of the inconel alloy continuous casting blank, reduce the internal stress of the inconel alloy continuous casting blank, and reduce the possibility of micro-crack generation, thereby improving the thermal plasticity of the inconel alloy continuous casting blank, solving the hot rolling cracking problem caused by the poor thermal plasticity of the inconel alloy, and further improving the hot rolling yield and production efficiency of the inconel alloy continuous casting blank. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A process flow chart of the heating method for improving the thermal plasticity of inconel alloy provided by the embodiment 1 of the application is provided.

[0027] Figure 2 A process flow chart of the heating method for improving the thermal plasticity of inconel alloy provided by the embodiment 2 of the application is provided.

[0028] Figure 3 A process flow chart of the heating method for inconel alloy provided by the comparative example 1 of the application is provided. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely in combination with the embodiments of the application. It should be understood by those skilled in the art that the embodiments are only used to understand the application, and should not be regarded as a specific limitation on the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0030] The embodiments of the application are implemented on the premise of the technical scheme of the application, and detailed implementation manners and processes are given, but the protection scope of the application is not limited to the following embodiments. The process parameters not marked with specific conditions in the following embodiments are usually according to the conventional conditions.

[0031] The endpoints of the ranges and any values described herein are not limited to the precise values stated. The endpoints of the ranges are provided as approximations. Any numerical value, however, inherently contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements. The ranges and values are approximations which are already properly accounted for. Any numerical value, however, inherently contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements. The ranges and values are approximations which are already properly accounted for.

[0032] The application provides a heating method for improving the thermal plasticity of Invar alloy, comprising the following steps:

[0033] Step 1, heating the Invar alloy continuous casting billet to the lower limit temperature of the corresponding Curie temperature range at a first heating rate, completing the first heating stage treatment of the Invar alloy continuous casting billet; the first heating rate is 0.8-1.2v2, unit: ℃ / s, s is the cross-sectional area of the continuous casting billet, unit: cm 2 ; when the continuous casting billet is a cuboid, the cross-sectional area of the continuous casting billet is the height x width of the continuous casting billet, and when the continuous casting billet is a cylinder, the cross-sectional area of the continuous casting billet is πr 2 .

[0034] Step 2, heating the Invar alloy continuous casting billet after the first heating stage treatment to the upper limit temperature of the corresponding Curie temperature range at a second heating rate; the second heating rate is less than the first heating rate, completing the second heating stage treatment of the Invar alloy continuous casting billet; the second heating rate is v1-3v1, unit: ℃ / s, s is the cross-sectional area of the continuous casting billet, unit: cm 2 ; wherein, when the continuous casting billet is a cuboid, the cross-sectional area of the continuous casting billet is the height x width of the continuous casting billet, and when the continuous casting billet is a cylinder, the cross-sectional area of the continuous casting billet is πr 2 .

[0035] Step 3, heating the Invar alloy continuous casting billet after the second heating stage treatment to 1150-1300℃ at the first heating rate and holding, completing the third heating stage treatment of the Invar alloy continuous casting billet.

[0036] Specifically, the holding temperature in step 3 is one of 1150℃, 1200℃, 1250℃ and 1300℃ or an interval value formed by any two specific values; wherein, the holding temperature in step 1 is preferably 1250℃.

[0037] Since the Invar alloy continuous casting billet is prone to cracks under the action of high temperature and certain stress, the hot ductility thereof is poor, which can lead to hot rolling edge cracking, thereby affecting the product quality and production efficiency. The inventors found that under the condition of rapid heating, when the temperature is near the Curie point (about 230℃), the thermal expansion coefficient increases sharply, the volume expansion generates a large internal stress, which can generate internal micro-cracks, thereby leading to hot rolling cracking, and the hot rolling cracking problem greatly affects the yield of Invar alloy, and reduces the production efficiency. In view of this, in the heating process of the Invar alloy continuous casting billet, the Invar alloy continuous casting billet outside the Curie temperature range is heated at a relatively high first heating rate, the heating time of the Invar alloy continuous casting billet is reduced, and when the Invar alloy continuous casting billet is in the Curie temperature range, the Invar alloy continuous casting billet is heated at a relatively low second heating rate, the heating rate of the Invar alloy continuous casting billet is slowed down, thereby reducing the internal stress of the Invar alloy continuous casting billet and the possibility of micro-crack generation, so as to improve the hot ductility of the Invar alloy continuous casting billet.

[0038] In some embodiments, the mass percentage of each element in the Invar alloy blank includes: Ni: 35.0% to 37.0%, C≤0.02%, S≤0.003%, P≤0.003%, Mn: 0.2% to 0.4%, Cr≤0.05%, Si≤0.05%; preferably, the mass percentage of each element in the Invar alloy blank is: C: 0.016%; Si: 0.01%; Mn: 0.24%; P: 0.003%; S: 0.001%; Cr: 0.01%; Ni: 36.14%; the balance is Fe and unavoidable impurities.

[0039] According to the composition and properties of different Invar alloy materials, the lower limit temperature of the Curie temperature range can be 180℃ to 230℃, such as 185℃, 195℃, 205℃, 210℃, 220℃, 230℃, etc., the upper limit temperature of the Curie temperature range can be 250℃ to 300℃, such as 255℃, 265℃, 275℃, 285℃, 295℃, etc., the Curie temperature range composed of the upper and lower limits of the Curie temperature contains the Curie temperature of the Invar alloy, and appropriate increase of the Curie temperature range is beneficial to actual production heating. In some embodiments, the lower limit temperature of the Curie temperature range is 200℃, and the upper limit temperature of the Curie temperature range is 300℃. Since the Curie temperature range of the Invar alloy material is between 200℃ and 300℃, the lower limit temperature of the Curie temperature range is preferably 200℃, and the upper limit temperature of the Curie temperature range is preferably 300℃.

[0040] The first heating rate and the second heating rate in the heating method provided by the application are obtained by the following method:

[0041] In the heating process of the inconel continuous casting billet, the heating rate v of the inconel continuous casting billet is inversely proportional to its cross-sectional area s, that is Therefore, let Therefore, the corresponding relationship between the heating rate v of the inconel continuous casting billet and the cross-sectional area s needs to be determined, and then the first heating rate that can make the inconel continuous casting billet heat at the first heating rate and the second heating rate that can make the inconel continuous casting billet heat at the second heating rate are determined.

[0042] Specifically, the inventors heated inconel samples with a size of 3.14x0.5cmx0.5cm at different heating rates (such as 10℃ / s, 30℃ / s, 50℃ / s, 70℃ / s, 100℃ / s), and found that when heated to 1150℃-1300℃ at a slow rate such as 10℃ / s, 30℃ / s and kept for a certain time, the inconel alloy had good thermal plasticity, but the whole heating process was time-consuming; when the heating rate was higher than 30℃ / s, especially above 100℃ / s, the thermal plasticity of the alloy deteriorated rapidly, therefore, the inventors selected a heating rate of 10-30℃ / s in the curie temperature range to prevent the thermal expansion coefficient from increasing sharply and the volume expansion from generating large internal stress, and in order to improve the overall heating efficiency and production efficiency, the heating rate in other stages was based on 100℃ / s. Using the sample size and heating rate effect, the inventors found the heating rate of inconel samples or continuous casting billets at different stages: when the surface area of the inconel sample is 3.14x0.5cmx0.5cm=0.785cm 2 When the heating rate of the inconel sample in the thermal simulation tensile test is 10℃ / s, k=vs=10x0.785=7.85, then When the heating rate of the inconel sample in the thermal simulation tensile test is 30℃ / s, then v=3v1(℃ / s); and when the heating rate of the inconel sample in the thermal simulation tensile test is 100℃ / s, then Since the temperature can be raised at a heating rate of 80-120 ℃ / s, the heating rate of the Invar alloy of different specifications in the rapid temperature rise can be 0.8v2-1.2v2. When the temperature of the Invar alloy sample is in the Curie temperature range, that is, when the temperature of the Invar alloy sample is 200-300 ℃, the Invar alloy sample is heated at a heating rate of v1-3v1, so that the heating rate (i.e. the second heating rate) of the Invar alloy sample is 10-30 ℃ / s; and when the Invar alloy sample is at a temperature outside the Curie temperature range, the Invar alloy sample is heated at a heating rate of 0.8v2-1.2v2 (i.e. the first heating rate), so that the second sample heating rate of the Invar alloy sample is about 100 ℃ / s. In an embodiment of the present application, when the size of the Invar alloy continuous casting billet is 140x1000x1500mm (heightxwidthxlength), the surface area of the Invar alloy continuous casting billet is 1400cm 2 , then the corresponding second heating rate of the Invar alloy continuous casting billet is: The corresponding first heating rate of the Invar alloy continuous casting billet is: Therefore, when the Invar alloy continuous casting billet is at 200-300 ℃, the Invar alloy continuous casting billet is heated at a second heating rate of 20.1 ℃ / h-60.3 ℃ / h. When the Invar alloy continuous casting billet is at a temperature outside the Curie temperature range, the Invar alloy continuous casting billet is heated at a first heating rate of 201 ℃ / h.

[0043] Further, for a sample with a specification of Φ10x120mm, the second heating rate is 10-30 ℃ / s; and the first heating rate is 100 ℃ / s. Specifically, the second heating rate is one of 10 ℃ / s, 15 ℃ / s, 20 ℃ / s, 25 ℃ / s and 30 ℃ / s.

[0044] Here, by innovatively selecting the first heating rate as 100 ℃ / s on the basis of the second heating rate, the overall heating rate of the Invar alloy continuous casting billet is increased, thereby reducing the heating time of the Invar alloy continuous casting billet. The second heating rate is selected as 10-30 ℃ / s to slowly heat the Invar alloy continuous casting billet in the Curie temperature range, thereby reducing the internal stress of the Invar alloy continuous casting billet.

[0045] In some embodiments, the holding time in the third heating stage can be determined according to the size of the continuous casting billet, as long as it can be burned through.

[0046] In some embodiments, in the first heating stage, the second heating stage and the third heating stage, the Invar alloy continuous casting billet is heated under the protection of inert gas or reducing gas or neutral atmosphere. Preferably, the inert gas is argon.

[0047] The heating method of the present application can be used for producing Invar alloy products, such as bars, tubes, etc.

[0048] The production method of the Invar alloy product comprises the following steps:

[0049] S1: preparing raw materials according to Invar alloy components, and obtaining Invar alloy billets through smelting and casting;

[0050] S2: heating the Invar alloy billets by using the above heating method;

[0051] S3: performing deformation treatment on the billets after the heating treatment in step S2; the deformation treatment in step S3 can be rolling or forging, etc.

[0052] S4: performing water cooling treatment on the rolled pieces after the deformation treatment.

[0053] In some embodiments, the opening rolling temperature of the rolling treatment is 1000-1100℃ (such as 1010℃, 1030℃, 1050℃, 1080℃, or 1090℃).

[0054] In some embodiments, after the heating treatment in step S2 is completed, the billets are first subjected to high-pressure water phosphorus removal, and then subjected to rolling.

[0055] The Invar alloy continuous casting billets used in the following examples have the following chemical composition by mass percentage: C: 0.016%; Si: 0.01%; Mn: 0.24%; P: 0.003%; S: 0.001%; Cr: 0.01%; Ni: 36.14%; balance Fe and unavoidable impurities. The following tests the Invar alloy continuous casting billets after being treated by the heating method of the present application have better hot plasticity by using Invar alloy samples. The specification of the hot tensile sample is Φ10 × 120 mm, the surface of the hot tensile sample is polished, and threads are machined at both ends of the cylinder.

[0056] Since the following examples use small-size samples for testing, a cooling rate of 3℃ / s is used instead of high-pressure water phosphorus removal operation.

[0057] Example 1

[0058] Referring to Figure 1 , the heating method for improving the hot plasticity of Invar alloy provided by the present embodiment comprises the following steps:

[0059] Step 1: using a Gleeble-1500 type thermal simulation testing machine, heating the hot tensile sample of the Invar alloy continuous casting billet to 200℃ at a heating rate of 100℃ / s under an argon protective atmosphere;

[0060] Step 2, heat the hot tensile specimen heated to 200°C to 300°C at a temperature increasing rate of 10°C / s;

[0061] Step 3, heat the hot tensile specimen heated to 300°C to 1250°C at a temperature increasing rate of 100°C / s and keep for 180s;

[0062] Step 4, cool the hot tensile specimen after the heat preservation treatment to 1000°C at a cooling rate of 3°C / s and keep for 60s;

[0063] Step 5, perform a tensile test on the hot tensile specimen after Step 4 at a strain rate of 0.1s -1 , and immediately water cool the hot tensile specimen after it is broken, and finally measure the cross-section shrinkage rate of the broken sample of the hot tensile specimen by using a vernier caliper.

[0064] Here, the cross-section shrinkage rate of the hot tensile specimen obtained by Example 1 is 91.7%, and thus it can be seen that the Invar continuous casting billet after the variable speed heating treatment of Example 1 has very high hot plasticity.

[0065] Example 2

[0066] Referring to Figure 2 , the heating method for improving the hot plasticity of Invar provided by the present embodiment includes the following steps:

[0067] Step 1, using a Gleeble-1500 type thermal simulation testing machine, heat the hot tensile specimen of the Invar continuous casting billet to 200°C at a temperature increasing rate of 100°C / s under an argon protective atmosphere;

[0068] Step 2, heat the hot tensile specimen heated to 200°C to 300°C at a temperature increasing rate of 30°C / s;

[0069] Step 3, heat the hot tensile specimen heated to 300°C to 1250°C at a temperature increasing rate of 100°C / s and keep for 180s;

[0070] Step 4, cool the hot tensile specimen after the heat preservation treatment to 1000°C at a cooling rate of 3°C / s and keep for 60s;

[0071] Step 5, perform a tensile test on the hot tensile specimen after Step 4 at a strain rate of 0.1s -1 , and immediately water cool the hot tensile specimen after it is broken, and finally measure the cross-section shrinkage rate of the broken sample of the hot tensile specimen by using a vernier caliper.

[0072] The cross-section shrinkage rate of the hot tensile specimen obtained by Example 2 is 90.8%, and thus it can be seen that the Invar continuous casting billet after the variable speed heating treatment of Example 2 has very high hot plasticity.

[0073] Comparative Example 1

[0074] Referring to Figure 3 The heating method for the inconel alloy provided by the present comparative example comprises the following steps:

[0075] Step 1, using a Gleeble-1500 thermal simulation testing machine, under an argon protective atmosphere, a hot tensile sample of the inconel alloy continuous casting billet is heated to 1250℃ at a heating rate of 100℃ / s and is kept for 180s;

[0076] Step 2, the hot tensile sample after the heat preservation treatment is cooled to 1000℃ at a cooling rate of 3℃ / s and is kept for 60s;

[0077] Step 3, a tensile test is performed on the hot tensile sample after step 4 at a strain rate of 0.1s -1 -1, after the hot tensile sample is broken, it is immediately water-cooled, and finally the reduction of area of the broken sample of the hot tensile sample is measured by a vernier caliper.

[0078] The reduction of area of the hot tensile sample obtained by the comparative example 1 is 55.6%, which is lower than 60%, thus it can be seen that the inconel alloy continuous casting billet after the constant heating rate treatment of the comparative example 1 has poor hot plasticity.

[0079] Comparative Example 2

[0080] The heating method for the inconel alloy provided by the present comparative example comprises the following steps:

[0081] Step 1, using a Gleeble-1500 thermal simulation testing machine, under an argon protective atmosphere, a hot tensile sample of the inconel alloy continuous casting billet is heated to 1250℃ at a heating rate of 10℃ / s and is kept for 180s;

[0082] Step 2, the hot tensile sample after the heat preservation treatment is cooled to 1000℃ at a cooling rate of 3℃ / s and is kept for 60s;

[0083] Step 3, a tensile test is performed on the hot tensile sample after step 4 at a strain rate of 0.1s -1 -1, after the hot tensile sample is broken, it is immediately water-cooled, and finally the reduction of area of the broken sample of the hot tensile sample is measured by a vernier caliper.

[0084] The reduction of area of the hot tensile sample obtained by the comparative example 2 is 92.2%, thus it can be seen that the hot plasticity of the inconel alloy continuous casting billet after the constant heating rate treatment of the comparative example 2 is equivalent to the hot plasticity of the continuous casting billet of the present example 1.

[0085] Through the analysis of the comparative example 1, the example 2 and the comparative example 1, it can be found very obviously that the thermal plasticity of the inconel alloy obtained by using the heating method provided by the application is greatly improved, therefore, the heating method provided by the application can solve the hot rolling cracking problem caused by the poor thermal plasticity of the inconel alloy, and meets the needs of industrial production.

[0086] The above only provides the preferred embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heating method for improving the thermoplasticity of a inconel alloy, characterized by, The heating method comprises: a first heating stage: heating the inconel continuous casting billet to the lower limit temperature of its corresponding Curie temperature range at a first heating rate; a second heating stage: heating the inconel continuous casting billet treated in the first heating stage to the upper limit temperature of its corresponding Curie temperature range at a second heating rate; the second heating rate is less than the first heating rate; a third heating stage: heating the inconel continuous casting billet treated in the second heating stage to a holding temperature of 1150-1300℃ at the first heating rate and holding; The second temperature increase rate is v 1 ~3v 1 in °C / s, v 1 = s is the cross-sectional area of the continuously cast strand in cm 2 ; said first temperature increase rate is 0.8 v 2 ~1.2 v 2 in °C / s, v 2 = s is the cross-sectional area of the continuously cast strand in cm 2 ; the lower limit temperature of the Curie temperature range is 200℃, and the upper limit temperature of the Curie temperature range is 300℃.

2. The heating method according to claim 1, characterized in that, In terms of mass percentage, the inconel continuous casting billet comprises: Ni: 35.0%-37.0%, C≤0.02%, S≤0.003%, P≤0.003%, Mn: 0.2%-0.4%, Cr≤0.05%, Si≤0.05%, the balance of Fe and inevitable impurities.

3. The heating method according to claim 2, characterized in that, The mass percentage of each element in the inconel continuous casting billet is: C: 0.016%, Si: 0.01%, Mn: 0.24%, P: 0.003%, S: 0.001%, Cr: 0.01%, Ni: 36.14%, the balance of Fe and inevitable impurities.

4. The heating method of claim 1, wherein, In the first heating stage, the second heating stage and the third heating stage, the inconel continuous casting billet is heated under the protection of inert gas or reducing gas or neutral atmosphere.

5. A method of production of an inconel product, characterized in that, The production method comprises the steps of:

6. The method of producing an Invar alloy product according to claim 5, characterized by, S1: preparing raw materials according to inconel alloy components, and obtaining inconel continuous casting billets through smelting and casting; S2: heating the inconel continuous casting billet by using the heating method according to any one of claims 1-4; S3: deforming the billet treated in step S2. The deforming treatment is rolling treatment; and / or 7. The production method according to claim 6, characterized by, The deforming treatment further comprises water cooling treatment. The rolling treatment has a opening rolling temperature of 1000-1100℃.

8. The production method according to claim 7, characterized by, In step S3, the high-pressure water phosphorus removal operation is further included before the deforming treatment.

9. The production method according to any one of claims 6 to 8, characterized in that, ​

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