A CuCrZr alloy crystal wheel and preparation method thereof

Abstract

The invention relates to the field of alloy crystallization wheel preparation, and in particular to a CuCrZr alloy crystallization wheel and a preparation method thereof, comprising: melting Cu, Cr and Zr materials according to a preset ratio to obtain an annular ingot by centrifugal casting; judging whether the preparation of the annular ingot meets a preset standard according to the obtained grain size; performing rough hole expansion processing on the inner ring surface of the annular ingot; ring rolling the annular ingot to a corresponding size to obtain a crystallization wheel ingot; judging whether the preparation of the crystallization wheel ingot meets a preset standard according to a rolling evaluation value; performing solution treatment and aging treatment in sequence on the crystallization wheel ingot that meets the preset standard; when the hardness of the crystallization wheel ingot after the aging treatment meets the preset standard, fine processing the crystallization wheel ingot to the design size of the crystallization wheel; and shot peening the inner ring surface of the finely processed crystallization wheel ingot. The invention realizes near-net forming of the crystallization wheel through ring rolling and also improves the production efficiency and quality of the alloy crystallization wheel.

Description

Technical Field

[0001] The invention relates to the field of alloy crystallization wheel preparation, and in particular to a CuCrZr alloy crystallization wheel and a preparation method thereof. Background Art

[0002] The crystallization wheel is an important component in the continuous casting and rolling mill. The crystallization wheel is a grooved wheel with a water cooling device on the outer wall to cool the solution in the groove. It can directly cast liquid copper or aluminum into rod-shaped ingots to achieve efficient casting of copper and aluminum materials. Therefore, its properties such as hardness, rigidity, thermal conductivity and thermal fatigue resistance are extremely strict.

[0003] In the prior art, there are methods of preparing crystallization wheels by casting, forging, heat treatment and machining; there are methods of preparing crystallization wheels by casting, die hole forging, heat treatment and machining; there are methods of preparing crystallization wheels by casting, hole opening, ring rolling, heat treatment and machining. Among them, the latter two methods achieve near-net-shape processing of crystallization wheel preparation and save raw materials. However, the preparation methods involved in the prior art lack necessary detection of each link in the crystallization wheel preparation process, resulting in defects generated in the preparation process cannot be discovered and corrected in time, thereby being transmitted to subsequent production links, affecting the quality and performance of the final product. Summary of the invention

[0004] To this end, the present invention provides a CuCrZr alloy crystallization wheel and a preparation method thereof, so as to overcome the problem in the prior art that due to the lack of necessary detection of each link in the crystallization wheel preparation process, the defects therein are transmitted to the subsequent production links, thereby affecting the quality and performance of the final product.

[0005] To achieve the above object, on the one hand, the present invention provides a method for preparing a CuCrZr alloy crystal wheel, comprising:

[0006] The Cu, Cr and Zr materials are melted according to a preset ratio, and after adding a crystallizing agent, they are quickly injected into a centrifuge for centrifugal casting to obtain a ring-shaped ingot;

[0007] Obtaining the grain size of a point at a preset distance from the outer ring surface to the inner ring surface of the annular casting billet, and determining whether the preparation of the annular casting billet meets the preset standard according to the obtained grain size;

[0008] When it is determined based on the grain size that the preparation of the annular ingot meets the preset standard, the inner ring surface of the annular ingot is subjected to rough hole expansion processing;

[0009] After heating the annular ingot that has completed the rough hole expansion process, the annular ingot is ring-rolled to a corresponding size according to a preset cross-sectional deformation amount to obtain a crystallization wheel ingot;

[0010] Calculating a rolling evaluation value and determining whether the preparation of the crystallization wheel billet meets a preset standard according to the rolling evaluation value;

[0011] When it is determined based on the rolling evaluation value that the preparation of the crystallization wheel billet meets the preset standard, the crystallization wheel billet meeting the preset standard is subjected to solution treatment and aging treatment in sequence;

[0012] When the hardness of the crystallization wheel billet after the aging treatment meets the preset standard, the crystallization wheel billet is fine-machined to the crystallization wheel design size;

[0013] The inner annular surface of the finished crystallization wheel rolling blank is shot peened to complete the preparation of the CuCrZr alloy crystallization wheel.

[0014] Further, the process of determining that the preparation of the annular casting billet does not meet the preset standard according to the obtained grain size includes:

[0015] Comparing the grain size with a first preset size threshold and a second preset size threshold respectively, wherein the first preset size threshold is smaller than the second preset size threshold;

[0016] Under the condition that the grain size is greater than the first preset size threshold, determining that the preparation of the annular casting does not meet the preset standard;

[0017] and, under the condition that the grain size is greater than or equal to the first preset size threshold and less than the second preset size threshold, determining the reason why the preparation of the annular ingot does not meet the preset standard according to the component segregation characteristic value;

[0018] Under the condition that the grain size is greater than or equal to the second preset size threshold, the pouring temperature of the CuCrZr alloy is reduced according to the difference between the grain size and the second preset size threshold.

[0019] Furthermore, several temperature adjustment methods are provided for reducing the pouring temperature of the CuCrZr alloy, wherein:

[0020] If the grain size difference is less than a first preset size difference, lowering the pouring temperature of the CuCrZr alloy to a corresponding value using a first temperature adjustment coefficient;

[0021] If the grain size difference is greater than or equal to the first preset size difference and less than the second preset size difference, lowering the pouring temperature of the CuCrZr alloy to a corresponding value using a second temperature adjustment coefficient;

[0022] If the grain size difference is greater than or equal to the second preset size difference, lowering the pouring temperature of the CuCrZr alloy to a corresponding value using a third temperature adjustment coefficient;

[0023] The grain size difference is the difference between the grain size and the second preset size threshold.

[0024] Further, the reason why the preparation of the annular ingot does not meet the preset standard is determined according to the component segregation value, wherein:

[0025] If the composition segregation value is less than the preset composition segregation characteristic value, it is determined that the reason why the preparation of the annular casting billet does not meet the preset standard is that the rotation speed of the centrifuge does not meet the standard, and the casting speed of the centrifuge is increased according to the difference between the preset composition segregation characteristic value and the composition segregation value;

[0026] If the composition segregation value is greater than or equal to the preset composition segregation characteristic value, it is determined that the reason why the preparation of the annular casting billet does not meet the preset standard is that the initial casting temperature of the casting mold of the centrifuge is high, and the initial casting temperature of the casting mold of the centrifuge is reduced according to the difference between the composition segregation value and the composition segregation characteristic value;

[0027] The component segregation value is the absolute value of the difference between the component concentrations of the outer annular surface and the inner annular surface of the annular casting billet.

[0028] Furthermore, the rolling evaluation value is determined based on the grain orientation characteristic coefficient and the crack characteristic coefficient of the crystallization wheel billet, wherein the grain orientation characteristic coefficient is the ratio of the maximum diameter to the minimum diameter of the grains of the crystallization wheel billet, and the crack characteristic coefficient is the average length of the cracks of the crystallization wheel billet.

[0029] Further, when it is determined based on the rolling evaluation value that the preparation of the crystallization wheel billet does not meet the preset standard, the cross-sectional deformation of the crystallization wheel billet is reduced according to the difference between the rolling evaluation value and the first preset evaluation threshold, or the initial rolling temperature is increased according to the difference between the rolling evaluation value and the second preset evaluation threshold.

[0030] Furthermore, several deformation adjustment methods are provided for reducing the cross-sectional deformation of the crystallization wheel billet, wherein:

[0031] If the rolling evaluation difference is less than the first preset evaluation difference, the first deformation adjustment coefficient is used to reduce the cross-sectional deformation of the crystallization wheel rolling blank;

[0032] If the rolling evaluation difference is greater than or equal to the first preset evaluation difference and less than the second preset evaluation difference, the second deformation adjustment coefficient is used to reduce the cross-sectional deformation of the crystallization wheel rolling blank;

[0033] If the rolling evaluation difference is greater than or equal to the second preset evaluation difference, the cross-sectional deformation of the crystallization wheel rolling blank is reduced by using the third deformation adjustment coefficient;

[0034] The rolling evaluation difference is the difference between the rolling evaluation value and a first preset evaluation threshold.

[0035] Furthermore, under the first preset condition, several correction methods for the cross-sectional deformation of the crystallization wheel rolling blank are provided, wherein:

[0036] If the correction difference is less than the first preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using the first preset correction coefficient;

[0037] If the correction difference is greater than or equal to the first preset correction difference and less than the second preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using the second preset correction coefficient;

[0038] If the correction difference is greater than or equal to the second preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using a third preset correction coefficient;

[0039] The correction difference is the difference between the average grain size of the crystallization wheel billet after adjustment and the preset average grain size;

[0040] The first preset condition is that the cross-sectional deformation amount of the crystallization wheel billet is reduced and adjusted, and the average grain size of the crystallization wheel billet after adjustment is greater than the preset average grain size.

[0041] Furthermore, the heating temperature of the solution treatment is 900-950°C, and the heating temperature of the aging treatment is 390-430°C.

[0042] On the other hand, the present invention also provides a CuCrZr alloy crystallization wheel, wherein the ratio of the radius of the CuCrZr alloy crystallization wheel to the cross-sectional width of the CuCrZr alloy crystallization wheel is greater than 12, and the ratio of the cross-sectional width of the CuCrZr alloy crystallization wheel to the cross-sectional height of the CuCrZr alloy crystallization wheel is 1.1-1.3.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention determines whether the preparation of the ring casting billet meets the preset standards according to the obtained grain size, determines whether the preparation of the crystallization wheel rolling billet meets the preset standards according to the rolling evaluation value, strictly controls the product quality of each step of the process, and ensures the stable performance and high quality of the final product.

[0044] Furthermore, the present invention adjusts the pouring temperature of the CuCrZr alloy according to the grain size difference, and ensures that each batch of annular ingots meets or exceeds the preset quality standard by strictly controlling the grain size, thereby improving the overall quality and consistency of the product.

[0045] Furthermore, the present invention determines the reason why the preparation of the annular ingot does not meet the preset standard based on the component segregation value, and realizes a highly flexible optimization strategy for the preparation process by dynamically adjusting the casting speed of the centrifuge and the initial casting temperature of the casting mold of the centrifuge, thereby ensuring the stability of product quality.

[0046] Furthermore, the present invention introduces the grain orientation characteristic coefficient and the crack characteristic coefficient to jointly determine the rolling evaluation value, thereby realizing a comprehensive and multi-level evaluation of the quality of the crystallization wheel billet, thereby more accurately reflecting the actual quality status of the crystallization wheel billet.

[0047] Furthermore, the present invention sequentially performs solution treatment and aging treatment on the crystallization wheel billet that meets the preset standards; if the preset standards are not met, the cross-sectional deformation of the crystallization wheel billet is correspondingly reduced, or the initial rolling temperature is correspondingly increased, thereby achieving flexible optimization of the preparation process and improving the product yield.

[0048] Furthermore, the present invention is provided with a corresponding correction adjustment method based on the reduction adjustment method of the cross-sectional deformation of the crystallization wheel billet, so as to ensure that the crystallization wheel billet can maintain an ideal shape and dimensional accuracy during the rolling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a flow chart of a method for preparing a CuCrZr alloy crystal wheel according to an embodiment of the present invention;

[0050] Figure 2 This is a flow chart of reducing the pouring temperature of the CuCrZr alloy according to the grain size difference according to an embodiment of the present invention;

[0051] Figure 3 It is a flow chart of determining whether the preparation of the crystallization wheel rolling blank meets the preset standard based on the rolling evaluation value according to an embodiment of the present invention;

[0052] Figure 4 The present invention is a flow chart of reducing the cross-sectional deformation of the crystallization wheel billet according to the rolling evaluation difference in an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] Those skilled in the art will appreciate that the method of the present invention for determining a single parameter mentioned above may be to select the value with the highest proportion as the preset standard parameter based on data distribution, use weighted summation to use the obtained value as the preset standard parameter, substitute each historical data into a specific formula and use the value obtained by using the formula as the preset standard parameter or other selection methods, as long as the method of the present invention can clearly define different specific situations in the single determination process through the obtained values.

[0055] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0056] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively a flow chart of a method for preparing a CuCrZr alloy crystallization wheel according to an embodiment of the present invention; a flow chart of reducing the pouring temperature of the CuCrZr alloy according to a grain size difference according to an embodiment of the present invention; a flow chart of determining whether the preparation of the crystallization wheel billet meets a preset standard based on the rolling evaluation value according to an embodiment of the present invention; a flow chart of reducing the cross-sectional deformation of the crystallization wheel billet according to a rolling evaluation difference according to an embodiment of the present invention.

[0057] A method for preparing a CuCrZr alloy crystal wheel according to an embodiment of the present invention comprises:

[0058] Step S1, melting Cu, Cr, and Zr materials according to a preset ratio, adding a crystallizing agent, and rapidly injecting them into a centrifuge for centrifugal casting to obtain a ring-shaped ingot;

[0059] Step S2, obtaining the grain size of a point at a preset distance from the outer ring surface to the inner ring surface of the annular casting billet, and determining whether the preparation of the annular casting billet meets the preset standard according to the obtained grain size;

[0060] Step S3, when it is determined based on the grain size that the preparation of the annular ingot meets the preset standard, the inner ring surface of the annular ingot is subjected to rough hole expansion processing;

[0061] Step S4, heating the annular ingot after the rough hole expansion process, and then ring-rolling the annular ingot to a corresponding size according to a preset cross-sectional deformation to obtain a crystallization wheel ingot, wherein the ring rolling temperature is 950° C.;

[0062] Step S5, calculating a rolling evaluation value and determining whether the preparation of the crystallization wheel billet meets a preset standard according to the rolling evaluation value;

[0063] Step S6, when it is determined based on the rolling evaluation value that the preparation of the crystallization wheel billet meets the preset standard, the crystallization wheel billet meeting the preset standard is subjected to solution treatment and aging treatment in sequence;

[0064] Step S7, when the hardness of the crystallization wheel billet after the aging treatment meets the preset standard, the crystallization wheel billet is fine-machined to the crystallization wheel design size;

[0065] Step S8, shot peening is performed on the inner annular surface of the finished crystallization wheel billet to complete the preparation of the CuCrZr alloy crystallization wheel.

[0066] Specifically, the ratio of Cu, Cr and Zr materials is not limited, and the corresponding ratio is determined according to actual production. Usually, the mass proportion of Cu in the CuCrZr alloy crystal wheel is generally greater than 98%. In this embodiment, the mass proportion of Cu is preferably 99.2%, Cr is 0.6%, and Zr is 0.2%.

[0067] Specifically, the preset distance is not specifically limited and can be determined according to the design size of the crystallization wheel. Usually, the ratio of the length of the preset distance point from the outer ring surface to the inner ring surface of the annular casting billet to the length of the distance from the outer ring surface to the inner ring surface of the annular casting billet is 0.90-0.95.

[0068] Specifically, the preset cross-sectional deformation amount is, for example, 10%, which is not specifically limited and can be set according to actual production conditions.

[0069] Specifically: Ring rolling includes the cross-sectional deformation caused by transverse rolling and longitudinal rolling.

[0070] Specifically, the method for measuring the grain size at a preset distance point from the outer ring surface to the inner ring surface of the annular casting billet adopts a metallographic microscope method.

[0071] Specifically, the inner ring surface of the annular ingot is subjected to rough hole expansion processing to a preset distance point on the inner ring surface of the annular ingot.

[0072] Specifically, the process of determining, according to the obtained grain size, that the preparation of the annular ingot does not meet the preset standard includes:

[0073] Comparing the grain size with a first preset size threshold and a second preset size threshold respectively, wherein the first preset size threshold is smaller than the second preset size threshold;

[0074] Under the condition that the grain size is greater than the first preset size threshold, determining that the preparation of the annular casting does not meet the preset standard;

[0075] and, under the condition that the grain size is greater than or equal to the first preset size threshold and less than the second preset size threshold, determining the reason why the preparation of the annular ingot does not meet the preset standard according to the component segregation characteristic value;

[0076] Under the condition that the grain size is greater than or equal to the second preset size threshold, reducing the pouring temperature of the CuCrZr alloy according to the difference between the grain size and the second preset size threshold;

[0077] The first preset size threshold is set to 150 μm, and the second preset size threshold is set to 220 μm.

[0078] Specifically, the pouring temperature of the CuCrZr alloy is reduced according to the difference between the grain size and the second set size threshold, wherein:

[0079] If the grain size difference is less than the first preset size difference of 12 μm, the pouring temperature of the CuCrZr alloy is reduced to a corresponding value using a first temperature adjustment coefficient of 0.998;

[0080] If the grain size difference is greater than or equal to the first preset size difference and less than the second preset size difference of 28 μm, the pouring temperature of the CuCrZr alloy is reduced to a corresponding value using a second temperature adjustment coefficient of 0.992;

[0081] If the grain size difference is greater than or equal to the second preset size difference, the pouring temperature of the CuCrZr alloy is reduced to a corresponding value using a third temperature adjustment coefficient of 0.985;

[0082] The grain size difference is the difference between the grain size and the second preset size threshold.

[0083] Specifically, the reason why the preparation of the annular ingot does not meet the preset standard is determined according to the component segregation value, wherein:

[0084] If the composition segregation value is less than the preset composition segregation characteristic value of 0.22%, it is determined that the reason why the preparation of the annular casting billet does not meet the preset standard is that the rotation speed of the centrifuge does not meet the standard, and the casting speed of the centrifuge is increased according to the difference between the preset composition segregation characteristic value and the composition segregation value;

[0085] If the composition segregation value is greater than or equal to the preset composition segregation characteristic value, it is determined that the reason why the preparation of the annular casting billet does not meet the preset standard is that the initial casting temperature of the casting mold of the centrifuge is high, and the initial casting temperature of the casting mold of the centrifuge is reduced according to the difference between the composition segregation value and the composition segregation characteristic value;

[0086] The component segregation value is the absolute value of the difference between the component concentrations of the outer annular surface and the inner annular surface of the annular casting billet.

[0087] Specifically, the rolling evaluation value is determined based on the grain orientation characteristic coefficient and crack characteristic coefficient of the crystallization wheel billet, wherein the grain orientation characteristic coefficient is the ratio of the maximum diameter to the minimum diameter of the grains of the crystallization wheel billet, and the crack characteristic coefficient is the average length of the cracks of the crystallization wheel billet. It can be understood that the grain orientation characteristic coefficient characterizes the deformation of the grains formed when the grains fail to complete recrystallization after rolling.

[0088] Specifically, the rolling evaluation value is calculated according to the following formula:

[0089] In the formula, E represents the rolling evaluation value, Represents the first evaluation coefficient, set , G represents the characteristic coefficient of grain orientation, Gy represents the characteristic threshold of grain orientation, and Gy=5.80 is set. Indicates the second evaluation coefficient, set , C represents the crack characteristic coefficient, Cy represents the crack characteristic threshold, and Cy=0.50mm is set.

[0090] Specifically, whether the preparation of the crystallization wheel billet meets the preset standard is determined based on the rolling evaluation value, wherein:

[0091] If the rolling evaluation value is less than the first preset evaluation threshold value of 1.20, it is determined that the preparation of the crystallization wheel billet meets the preset standard, and the crystallization wheel billet meeting the preset standard is subjected to solution treatment and aging treatment in sequence;

[0092] If the rolling evaluation value is greater than or equal to the first preset evaluation threshold and less than the second preset evaluation threshold of 1.53, it is determined that the preparation of the crystallization wheel billet does not meet the preset standard, and the cross-sectional deformation of the crystallization wheel billet is reduced according to the difference between the rolling evaluation value and the first preset evaluation threshold;

[0093] If the rolling evaluation value is greater than or equal to the second preset evaluation threshold, it is determined that the preparation of the crystallization wheel billet does not meet the preset standard, and the initial rolling temperature is increased according to the difference between the rolling evaluation value and the second preset evaluation threshold.

[0094] Specifically, the cross-sectional deformation of the crystallization wheel rolling blank is reduced according to the difference between the rolling evaluation value and the first preset evaluation threshold, wherein:

[0095] If the rolling evaluation difference is less than the first preset evaluation difference of 0.13, the cross-sectional deformation of the crystallization wheel billet is reduced by using the first deformation adjustment coefficient of 0.98;

[0096] If the rolling evaluation difference is greater than or equal to the first preset evaluation difference and less than the second preset evaluation difference of 0.21, the cross-sectional deformation of the crystallization wheel billet is reduced by using the second deformation adjustment coefficient of 0.95;

[0097] If the rolling evaluation difference is greater than or equal to the second preset evaluation difference, a third deformation adjustment coefficient of 0.92 is used to reduce the cross-sectional deformation of the crystallization wheel rolling blank;

[0098] The rolling evaluation difference is the difference between the rolling evaluation value and a first preset evaluation threshold.

[0099] Specifically, under the first preset condition, the cross-sectional deformation of the crystallization wheel rolling blank is corrected according to the correction difference, wherein:

[0100] If the correction difference is less than the first preset correction difference of 2.56, the cross-sectional deformation of the crystallization wheel billet is increased to a corresponding value using the first preset correction coefficient of 1.001;

[0101] If the correction difference is greater than or equal to the first preset correction difference and less than the second preset correction difference of 3.82, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using the second preset correction coefficient of 1.003;

[0102] If the correction difference is greater than or equal to the second preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using a third preset correction coefficient of 1.008;

[0103] The correction difference is the difference between the average grain size of the crystallization wheel billet after adjustment and the preset average grain size;

[0104] The first preset condition is that the cross-sectional deformation amount of the crystallization wheel billet is reduced and adjusted, and the average grain size of the crystallization wheel billet after adjustment is greater than the preset average grain size of 65 μm.

[0105] Specifically, the heating temperature of the solution treatment is 900-950° C., and the heating temperature of the aging treatment is 390-430° C., and the aging treatment duration is 6-9 hours.

[0106] A CuCrZr alloy crystallization wheel according to an embodiment of the present invention comprises:

[0107] The ratio of the radius of the CuCrZr alloy crystallization wheel to the cross-sectional width of the CuCrZr alloy crystallization wheel is greater than 12, and the ratio of the cross-sectional width of the CuCrZr alloy crystallization wheel to the cross-sectional height of the CuCrZr alloy crystallization wheel is 1.1-1.3. It can be understood that the CuCrZr alloy crystallization wheel prepared by the present invention is a crystallization wheel used for cast pipes with an outer diameter exceeding 1.2m.

[0108] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0109] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing a CuCrZr alloy crystal wheel, characterized in that: include: The Cu, Cr and Zr materials are melted according to a preset ratio, and after adding a crystallizing agent, they are quickly injected into a centrifuge for centrifugal casting to obtain a ring-shaped ingot; Obtaining the grain size of a point at a preset distance from the outer ring surface to the inner ring surface of the annular casting billet, and determining whether the preparation of the annular casting billet meets the preset standard according to the obtained grain size; When it is determined based on the grain size that the preparation of the annular ingot meets the preset standard, the inner ring surface of the annular ingot is subjected to rough hole expansion processing; After heating the annular ingot that has completed the rough hole expansion process, the annular ingot is ring-rolled to a corresponding size according to a preset cross-sectional deformation amount to obtain a crystallization wheel ingot; Calculating a rolling evaluation value and determining whether the preparation of the crystallization wheel billet meets a preset standard according to the rolling evaluation value; When it is determined based on the rolling evaluation value that the preparation of the crystallization wheel billet meets the preset standard, the crystallization wheel billet meeting the preset standard is subjected to solution treatment and aging treatment in sequence; When the hardness of the crystallization wheel billet after the aging treatment meets the preset standard, the crystallization wheel billet is fine-machined to the crystallization wheel design size; Shot peening is performed on the inner annular surface of the finished crystallization wheel rolling blank to complete the preparation of the CuCrZr alloy crystallization wheel; The process of determining, based on the obtained grain size, that the preparation of the annular casting billet does not meet the preset standard comprises: Comparing the grain size with a first preset size threshold and a second preset size threshold respectively, wherein the first preset size threshold is smaller than the second preset size threshold; Under the condition that the grain size is greater than the first preset size threshold, determining that the preparation of the annular casting does not meet the preset standard; and, under the condition that the grain size is greater than or equal to the first preset size threshold and less than the second preset size threshold, determining the reason why the preparation of the annular ingot does not meet the preset standard according to the component segregation characteristic value; Under the condition that the grain size is greater than or equal to the second preset size threshold, reducing the pouring temperature of the CuCrZr alloy according to the difference between the grain size and the second preset size threshold; The rolling evaluation value is determined based on the grain orientation characteristic coefficient and the crack characteristic coefficient of the crystallization wheel billet, wherein the grain orientation characteristic coefficient is the ratio of the maximum diameter to the minimum diameter of the grains of the crystallization wheel billet, and the crack characteristic coefficient is the average length of the cracks of the crystallization wheel billet; When it is determined based on the rolling evaluation value that the preparation of the crystallization wheel billet does not meet the preset standard, the cross-sectional deformation of the crystallization wheel billet is reduced according to the difference between the rolling evaluation value and the first preset evaluation threshold, or the initial rolling temperature is increased according to the difference between the rolling evaluation value and the second preset evaluation threshold; The rolling evaluation value is calculated according to the following formula: In the formula, E represents the rolling evaluation value, α represents the first evaluation coefficient, α is set to 0.65, G represents the grain orientation characteristic coefficient, Gy represents the grain orientation characteristic threshold, Gy is set to 5.80, β represents the second evaluation coefficient, β is set to 0.32, C represents the crack characteristic coefficient, Cy represents the crack characteristic threshold, Cy is set to 0.50mm.

2. The method for preparing a CuCrZr alloy crystal wheel according to claim 1, characterized in that: There are several temperature adjustment methods for reducing the pouring temperature of the CuCrZr alloy, among which: If the grain size difference is less than a first preset size difference, lowering the pouring temperature of the CuCrZr alloy to a corresponding value using a first temperature adjustment coefficient; If the grain size difference is greater than or equal to the first preset size difference and less than the second preset size difference, lowering the pouring temperature of the CuCrZr alloy to a corresponding value using a second temperature adjustment coefficient; If the grain size difference is greater than or equal to the second preset size difference, lowering the pouring temperature of the CuCrZr alloy to a corresponding value using a third temperature adjustment coefficient; The grain size difference is the difference between the grain size and the second preset size threshold.

3. The method for preparing a CuCrZr alloy crystal wheel according to claim 2, characterized in that: The reason why the preparation of the annular ingot does not meet the preset standard is determined according to the component segregation value, wherein: If the composition segregation value is less than the preset composition segregation characteristic value, it is determined that the reason why the preparation of the annular casting billet does not meet the preset standard is that the rotation speed of the centrifuge does not meet the standard, and the casting speed of the centrifuge is increased according to the difference between the preset composition segregation characteristic value and the composition segregation value; If the composition segregation value is greater than or equal to the preset composition segregation characteristic value, it is determined that the reason why the preparation of the annular casting billet does not meet the preset standard is that the initial casting temperature of the casting mold of the centrifuge is high, and the initial casting temperature of the casting mold of the centrifuge is reduced according to the difference between the composition segregation value and the composition segregation characteristic value; The component segregation value is the absolute value of the difference between the component concentrations of the outer annular surface and the inner annular surface of the annular casting billet.

4. The method for preparing a CuCrZr alloy crystal wheel according to claim 3, characterized in that: There are several deformation adjustment methods for reducing the cross-sectional deformation of the crystallization wheel billet, among which: If the rolling evaluation difference is less than the first preset evaluation difference, the first deformation adjustment coefficient is used to reduce the cross-sectional deformation of the crystallization wheel rolling blank; If the rolling evaluation difference is greater than or equal to the first preset evaluation difference and less than the second preset evaluation difference, the second deformation adjustment coefficient is used to reduce the cross-sectional deformation of the crystallization wheel rolling blank; If the rolling evaluation difference is greater than or equal to the second preset evaluation difference, the cross-sectional deformation of the crystallization wheel rolling blank is reduced by using the third deformation adjustment coefficient; The rolling evaluation difference is the difference between the rolling evaluation value and a first preset evaluation threshold.

5. The method for preparing a CuCrZr alloy crystal wheel according to claim 4, characterized in that: Under the first preset condition, several correction methods are provided for the cross-sectional deformation of the crystallization wheel rolling blank, wherein: If the correction difference is less than the first preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using the first preset correction coefficient; If the correction difference is greater than or equal to the first preset correction difference and less than the second preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using the second preset correction coefficient; If the correction difference is greater than or equal to the second preset correction difference, the cross-sectional deformation of the crystallization wheel rolling blank is increased to a corresponding value using a third preset correction coefficient; The correction difference is the difference between the average grain size of the crystallization wheel billet after adjustment and the preset average grain size; The first preset condition is that the cross-sectional deformation amount of the crystallization wheel billet is reduced and adjusted, and the average grain size of the crystallization wheel billet after adjustment is greater than the preset average grain size.

6. The method for preparing a CuCrZr alloy crystal wheel according to claim 5, characterized in that: The heating temperature of the solution treatment is 900-950°C, and the heating temperature of the aging treatment is 390-430°C.

7. A CuCrZr alloy crystal wheel prepared according to the method for preparing a CuCrZr alloy crystal wheel according to any one of claims 1 to 6, characterized in that: The ratio of the radius of the CuCrZr alloy crystallization wheel to the cross-sectional width of the CuCrZr alloy crystallization wheel is greater than 12, and the ratio of the cross-sectional width of the CuCrZr alloy crystallization wheel to the cross-sectional height of the CuCrZr alloy crystallization wheel is 1.1-1.3.

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