Slitting machine, preparation method of isolating ring of slitting machine and isolating ring of slitting machine

Abstract

The invention discloses a slitting machine, a slitting machine isolating ring preparation method and an isolating ring thereof, and relates to the technical field of workpiece machining and manufacturing. The preparation method comprises the steps that raw materials are subjected to rough machining, an annular to-be-machined workpiece is obtained, and the to-be-machined workpiece is subjected to heat treatment; the to-be-machined part subjected to heat treatment is subjected to finish machining, and a circular ring intermediate with the preset size is obtained; calculating according to the preset size to obtain grooving parameters; according to the grooving parameters, annular grooves are formed in the inner wall and the outer wall of the annular intermediate object, a semi-finished product is obtained, and all the annular grooves extend in the circumferential direction of the semi-finished product; and performing shot peening strengthening treatment on the semi-finished product, and plating a metal layer on the outer surface of the semi-finished product to obtain the isolating ring. The prepared isolating ring meets the requirement for light weight, the anti-fatigue performance of the isolating ring is effectively improved, the service life of the isolating ring is effectively prolonged, and the durability and reliability of the isolating ring on the slitting machine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece processing and manufacturing, and in particular to a slitting machine, a method for preparing an isolation ring of the slitting machine, and the isolation ring. Background Art

[0002] A slitting machine is a device that cuts metal strips into the required width and rewinds them into coils. Its main shearing structure is a disc knife. Multiple disc knives are arranged in sequence on a rotating shaft to cut the metal strips into multiple parts. In order to maintain the stability between each disc knife, an isolation ring is provided between any two adjacent disc knives to position and stabilize each disc knife. The performance of the isolation ring also greatly affects the shearing accuracy and production efficiency of the disc knife.

[0003] However, the current manufacturing process of the isolation ring is relatively simple. It is only processed by simple processing methods, and when it is lightweighted, it is only reduced by simple openings. This not only easily leads to stress concentration, but also easily destroys the dynamic balance of the isolation ring itself. Problems are prone to occur frequently during use, causing the longitudinal shearing machine to be shut down for maintenance, thereby affecting the shearing accuracy and production efficiency, and the reliability of use is poor. Summary of the Invention

[0004] The main purpose of the present invention is to provide a slitting machine, a method for preparing an isolation ring of the slitting machine and the isolation ring thereof, aiming to solve the technical problem of poor reliability of existing isolation rings.

[0005] To achieve the above-mentioned object, the present invention proposes a method for preparing an isolation ring for a slitting machine, characterized in that the preparation method comprises:

[0006] Roughly processing the raw material to obtain a ring-shaped workpiece to be processed, and heat treating the workpiece to be processed;

[0007] Finish-machining the workpiece after heat treatment to obtain a circular intermediate of a preset size;

[0008] Calculate according to the preset size to obtain slotting parameters;

[0009] According to the groove parameters, annular grooves are formed on the inner wall and the outer wall of the annular intermediate to obtain a semi-finished product, wherein each of the annular grooves extends along the circumference of the semi-finished product;

[0010] The semi-finished product is subjected to a shot peening treatment, and a metal layer is plated on the outer surface of the semi-finished product to obtain the isolation ring.

[0011] In one embodiment, the step of heat treating the workpiece includes:

[0012] Placing the workpiece to be processed in a vacuum environment and performing a quenching treatment on the workpiece to be processed within a first preset temperature range; wherein the first preset temperature range is 1030±1°C;

[0013] The workpiece to be processed after quenching is tempered within a second preset temperature range; wherein the second preset temperature range is 580±1°C.

[0014] In one embodiment, after the step of heat treating the workpiece, the method further comprises:

[0015] detecting residual stress of the workpiece after heat treatment, and comparing whether the residual stress is within a standard stress range;

[0016] If yes, then the step of fine-machining the workpiece after heat treatment to obtain a circular ring intermediate of a preset size is performed;

[0017] If not, the process returns to the step of heat treating the workpiece to be processed.

[0018] In one embodiment, the preset size includes a preset thickness T, and the slotting parameters include a slotting width W and a slotting depth D;

[0019] The step of calculating and obtaining the slotting parameters according to the preset dimensions comprises:

[0020] According to the first ratio range A and the preset thickness T, the groove width W is calculated, and according to the second ratio range B and the preset thickness T, the groove depth D is calculated; wherein, the first ratio range A=W:T=0.4±0.05, and the second ratio range B=D:T=0.25±0.03.

[0021] In one embodiment, the annular groove includes a groove bottom wall and two opposite groove side walls; the step of forming annular grooves on both the inner wall and the outer wall of the annular middle includes:

[0022] Two annular grooves are respectively provided on the inner wall and the outer wall of the annular intermediate object at corresponding positions, and transition fillets are formed at the connection between the side wall of each groove and the bottom wall of the groove.

[0023] In one embodiment, the step of plating a metal layer on the outer surface of the semi-finished product comprises:

[0024] The outer surface of the semi-finished product is plated with metal chromium in a preset thickness range to form the metal layer, and the preset thickness range is 0.01 mm to 0.03 mm.

[0025] In one embodiment, the radius of the transition fillet is r, where r≥3 mm.

[0026] In one embodiment, the raw material is a metal-based composite material, a titanium alloy material or a ceramic-reinforced composite material.

[0027] The present invention also provides an isolation ring, which is prepared by the above-mentioned isolation ring preparation method for the longitudinal shearing machine.

[0028] The present invention also provides a slitting machine, which is equipped with the isolation ring as described above.

[0029] The method for preparing the isolation ring of the longitudinal shearing machine of the present invention performs heat treatment on the workpiece to be processed obtained by rough processing to improve its hardness to meet the use requirements; and after fine processing the workpiece to be processed to obtain the middle of the circular ring, the inner wall and outer wall of the circular ring middle are grooved to obtain a semi-finished product with annular grooves on the inner and outer walls, thereby reducing the weight of the product and meeting the lightweight requirements; and, compared with opening holes, the annular grooves are more evenly distributed, which is more conducive to maintaining the dynamic balance performance of the isolation ring; finally, by shot peening and plating the semi-finished product with a metal layer, the fatigue resistance and service life of the isolation ring are effectively improved, and the durability and reliability of the isolation ring on the longitudinal shearing machine are further improved, and the occurrence of longitudinal shearing machine shutdown due to problems with the isolation ring is reduced, and the longitudinal shearing accuracy and efficiency are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0031] Figure 1 Schematic diagram of the process of preparing an isolation ring for a slitting machine according to the first embodiment of the present invention;

[0032] Figure 2 Schematic diagram of a process for preparing an isolation ring for a slitting machine according to a second embodiment of the present invention;

[0033] Figure 3 is a front view schematic diagram of an isolation ring according to an embodiment of the present invention;

[0034] Figure 4 A schematic side view of an isolation ring according to an embodiment of the present invention;

[0035] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0036] Description of Figure Numbers:

[0037] 100. Isolation ring; 101. Annular groove; 102. Groove sidewall; 103. Groove bottom wall; 104. Transition fillet.

[0038] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] A first embodiment of the present invention provides a method for preparing an isolation ring for a slitting machine.

[0043] See also Figure 1 、 Figure 3-Figure 5 In a first embodiment of the present invention, the method for preparing the isolation ring of the slitting machine includes the following steps:

[0044] Step S100 , rough-processing the raw material to obtain a ring-shaped workpiece to be processed;

[0045] Step S200, heat treating the workpiece to be processed;

[0046] It should be noted that in this embodiment, the raw material can be understood as a product that has been formed and has a certain shape and size. By rough processing the raw material, multiple parts to be processed can be obtained, wherein the raw material can be a rod-shaped raw material, a cylindrical raw material, etc. The rough processing can be a mechanical cutting method, etc., and the raw material is cut to obtain multiple parts to be processed. It can be understood that in order to ensure that the size of the final product meets the expectations, the size of the part to be processed usually needs to be larger than the size of the isolation ring of the final product, that is, the inner diameter, outer diameter and thickness of the arc-shaped part to be processed are all larger than the inner diameter, outer diameter and thickness of the isolation ring of the final product, and the inner diameter, outer diameter and thickness of the isolation ring of the final product are determined before the raw material is rough processed. For example, if the isolation ring with a thickness of 40mm is to be prepared, the thickness of the part to be processed obtained after rough processing must be greater than 40mm. And by heat treating the part to be processed, the overall hardness of the part to be processed can be effectively improved.

[0047] Step S300, finishing the workpiece after heat treatment to obtain a ring intermediate of a preset size;

[0048] It can be understood that the preset size is the expected size of the isolation ring of the final product. By fine-machining the workpiece, the dimensional accuracy of the circular ring intermediate is guaranteed and its surface quality is improved.

[0049] Finishing involves using high-precision machine tools and fine cutting tools to cut the workpiece at a specific cutting depth and feed rate. In one embodiment, the cutting depth is 0.3 mm and the feed rate is 0.08 mm / rev. Specifically, finishing also requires certain machining accuracy requirements, such as ±0.001 mm and a surface roughness of Ra 0.2-0.6 μm.

[0050] In a specific embodiment, a CNC lathe in the prior art is used to perform finish machining on the workpiece.

[0051] Step S400, calculating according to the preset size to obtain slotting parameters;

[0052] It can be understood that the preset size is a value that has been determined before rough machining begins, that is, the slotting parameters can also be calculated before rough machining begins. Therefore, step S300 can be performed before step S100, and the calculation method includes but is not limited to manual calculation, machine calculation, etc.

[0053] Step S500, forming annular grooves on the inner wall and the outer wall of the annular intermediate according to the groove parameters to obtain a semi-finished product, wherein each of the annular grooves extends along the circumference of the semi-finished product;

[0054] Annular grooves are opened on the inner and outer walls of the middle of the ring according to the grooving parameters, which reduces the weight of the product and meets the lightweight requirements of the isolation ring of the final product. The annular grooves can ensure its dynamic balance and stability.

[0055] It should be noted that the annular grooves on the inner wall and the outer wall adopt the same groove parameters, and the groove opening sequence of the inner wall and the outer wall is not limited, or they can be performed simultaneously.

[0056] Step S600 , subjecting the semi-finished product to a shot peening treatment, and coating the outer surface of the semi-finished product with a metal layer to obtain the isolation ring.

[0057] By applying shot peening treatment to the outer surface of the semi-finished product to improve the outer surface strength of the semi-finished product, the fatigue resistance and service life of the isolation ring are improved. In addition, by plating a metal layer on the outer surface, the wear resistance and corrosion resistance of the isolation ring are improved, further extending the service life.

[0058] The method for preparing the isolation ring of the longitudinal shearing machine of the present invention performs heat treatment on the workpiece to be processed obtained by rough processing to improve its hardness to meet the use requirements; and after fine processing the workpiece to be processed to obtain the middle of the circular ring, the inner wall and outer wall of the circular ring middle are grooved to obtain a semi-finished product with annular grooves on the inner and outer walls, thereby reducing the weight of the product and meeting the lightweight requirements; and, compared with opening holes, the annular grooves are more evenly distributed, which is more conducive to maintaining the dynamic balance performance of the isolation ring; finally, by shot peening and plating the semi-finished product with a metal layer, the fatigue resistance and service life of the isolation ring are effectively improved, and the durability and reliability of the isolation ring on the longitudinal shearing machine are further improved, and the occurrence of longitudinal shearing machine shutdown due to problems with the isolation ring is reduced, and the longitudinal shearing accuracy and efficiency are further improved.

[0059] Furthermore, step S200 includes the following steps:

[0060] Step S201: placing the workpiece to be processed in a vacuum environment and performing a quenching treatment on the workpiece to be processed within a first preset temperature range; wherein the first preset temperature range is 1030±1° C.;

[0061] Step S202 , performing tempering treatment on the workpiece after quenching within a second preset temperature range; wherein the second preset temperature range is 580±1° C.

[0062] It can be understood that the quenching treatment adopts a vacuum quenching process, in which the workpiece to be processed is placed in a vacuum environment, heated to a first preset temperature range, and kept warm within the first preset temperature range for a first preset time, which is determined according to actual conditions; in a specific embodiment, the first preset time is greater than or equal to 2 hours.

[0063] During tempering, the workpiece is placed in a second preset temperature range and kept warm for a second preset time, not limited to a vacuum environment. The second preset time can also be determined according to actual conditions. In a specific embodiment, the second preset time is greater than or equal to 3 hours.

[0064] See also Figure 2 , which is a flow chart of a second embodiment of the method for preparing an isolation ring for a slitting machine according to the present invention, based on the first embodiment described above, after step S200, further comprising the following steps:

[0065] Step S203, detecting residual stress of the workpiece after heat treatment, and comparing whether the residual stress is within a standard stress range;

[0066] If yes, then the step of fine-machining the workpiece after heat treatment to obtain a circular ring intermediate of a preset size is performed;

[0067] If not, the process returns to the step of heat treating the workpiece to be processed.

[0068] By testing the residual stress of the workpiece to be processed, it is ensured that the residual stress is within the standard stress range, and deformation and cracking of the prepared isolation ring due to large residual stress during use are avoided, so as to ensure the quality of the finally prepared isolation ring.

[0069] In a specific embodiment, comparing whether the residual stress is within the standard stress range specifically includes determining whether the residual stress is less than 100 MPa. If not, returning to the step of heat treating the workpiece to be processed.

[0070] It should be noted that residual stress detection can be achieved by using stress detection means in the prior art.

[0071] Furthermore, step S103 also includes testing the hardness of the workpiece to be processed after heat treatment, and determining whether the hardness is within the standard hardness range; if so, executing the step of fine-machining the workpiece to be processed after heat treatment to obtain a circular ring intermediate of a preset size; if not, returning to executing the step of heat-treating the workpiece to be processed.

[0072] In one embodiment, the standard hardness range is 59±1 HRC.

[0073] Furthermore, the preset size includes a preset thickness T, and the slotting parameters include a slotting width W and a slotting depth D. Step S400 includes:

[0074] Step S401, calculate the groove width W according to the first ratio range A and the preset thickness T, and calculate the groove depth D according to the second ratio range B and the preset thickness T; wherein, the first ratio range A=W:T=0.4±0.05, and the second ratio range B=D:T=0.25±0.03.

[0075] It can be understood that the first ratio range and the second ratio range are ranges determined based on the size of the isolation ring and according to multiple simulation analyses and experimental verifications, ensuring the lightweight of the isolation ring and its balanced performance, and the preset thickness is known, so the slot width and slot thickness can be directly calculated.

[0076] The preset thickness is the desired thickness of the final isolator ring during manufacturing. This thickness may fluctuate within a thickness tolerance range based on the actual finishing process limitations. In one embodiment, the actual thickness tolerance is ±0.001mm. This means that if a 40mm thick isolator ring is required, the thickness of the resulting intermediate ring after finishing must be within the range of 40±0.001mm to meet the product manufacturing standards. When calculating slotting parameters, the intermediate thickness of 40mm can be used.

[0077] It can be understood that the slot width and slot thickness calculated according to the first ratio range and the second ratio range are also expressed as a range of values, which can also be understood as its tolerance. Taking into account the process limitations of the slotting processing during slotting, the slot width and slot thickness meet the standard requirements within the tolerance range.

[0078] Furthermore, the preset size also includes a preset inner diameter and a preset outer diameter, and the preset inner diameter and the preset outer diameter are both set according to pre-requirements, and both the preset inner diameter and the preset outer diameter have a certain tolerance.

[0079] In a specific embodiment, one specification of the isolation ring has a preset inner diameter of 200 mm, a preset outer diameter of 260 mm, an inner diameter upper tolerance of +0.04 mm, an inner diameter lower tolerance of +0.01 mm, an outer diameter upper tolerance of 0, and an outer diameter lower tolerance of -0.2.

[0080] Furthermore, the annular groove includes a groove bottom wall and two opposite groove side walls; step S500 further includes:

[0081] In step S501 , two annular grooves are formed at corresponding positions on the inner wall and the outer wall of the annular intermediate object, and transition fillets are formed at the connection between the side walls of each groove and the bottom wall of the groove.

[0082] As can be understood, the two annular grooves on the inner and outer walls are designed to ensure the dynamic balance of the isolating ring, thus ensuring its stability when operating on the slitting shear. Furthermore, the transition radius formed at the junction of the groove sidewalls and the groove bottom ensures the balance of the isolating ring's mechanical properties, optimizes stress distribution, and improves fatigue resistance.

[0083] In a specific embodiment, a specific slotting tool is used to open the annular groove, wherein the width of the slotting tool is 16±0.01 mm.

[0084] Furthermore, the radius of the transition fillet is r, wherein r≥3 mm. According to experimental analysis, setting the transition fillet is beneficial to stress transition and uniform distribution, thereby improving dynamic balancing performance.

[0085] In one embodiment, the annular groove is formed in three steps. First, rough machining is performed to remove 80% of the material to form the annular groove. Second, fine machining is performed to refine the groove sidewalls and bottom wall and form transition fillets. Finally, the groove sidewalls and bottom wall are polished to improve their surface flatness.

[0086] Furthermore, step S600 includes:

[0087] In step S601 , metal chromium is plated on the outer surface of the semi-finished product in a preset thickness range to form the metal layer, where the preset thickness range is 0.01 mm to 0.03 mm.

[0088] As can be understood, in this embodiment, by plating metallic chromium on the outer surface of the semi-finished product, the chromium layer has high hardness, heat resistance, and friction resistance, thereby improving the durability of the isolation ring. The chromium layer can also be used to modify the appearance of the isolation ring, making it look brighter. Specifically, the metallic chromium can be plated by electroplating.

[0089] Furthermore, the raw material is a metal-based composite material, a titanium alloy material, or a ceramic-reinforced composite material. Preferably, a steel-based composite material, such as a 42CrMo4 alloy steel bar, is used. Prior to rough machining, the raw material is ultrasonically inspected to ensure that it is free of internal defects.

[0090] After the isolation ring is prepared, the method further includes a step of testing the isolation ring, specifically including a dynamic balance test and a surface integrity test.

[0091] The dynamic balancing test involves rotating the isolating ring on a test device, typically a conventional dynamic balancing machine. The speed range is 500-3000 rpm, while the slitting machine's maximum speed is 2500 rpm. The isolating ring's imbalance is measured based on the speed adjustment. Testing revealed that the isolating rings produced using this method exhibited imbalances of 0.4 g·cm, 0.7 g·cm, and 1.1 g·cm at speeds of 1000 rpm, 2000 rpm, and 3000 rpm, respectively. The dynamic balance grade is superior to G2.5, which requires ≤6.3 g·cm.

[0092] The surface integrity test measured the end face parallelism and flatness to be ≤0.002mm.

[0093] See also Figure 3-Figure 5 The present invention further provides an isolation ring 100, which is manufactured using the aforementioned method for manufacturing an isolation ring for a slitting shear. Because this isolation ring 100 is manufactured using the aforementioned method, it possesses at least all the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore will not be further elaborated upon here.

[0094] Among them, the inner wall and the outer wall of the isolation ring 100 are both provided with annular grooves 101, and the two annular grooves 101 are arranged opposite to each other. Each annular groove includes a groove bottom wall 103 and two groove side walls 102, and the connection between the groove bottom wall 103 and the groove side walls 102 forms a transition fillet 104.

[0095] The present invention further provides a slitting machine, which is applied with the above-mentioned isolation ring 100. Since the isolation ring adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described in detail here.

[0096] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A method for preparing an isolation ring for a slitting machine, characterized in that: The isolation ring preparation method comprises the following steps: Roughly processing the raw material to obtain a ring-shaped workpiece to be processed, and heat treating the workpiece to be processed; Finish-machining the workpiece after heat treatment to obtain a circular intermediate of a preset size; Calculate according to the preset size to obtain slotting parameters; According to the groove parameters, annular grooves are formed on the inner wall and the outer wall of the annular intermediate to obtain a semi-finished product, wherein each of the annular grooves extends along the circumference of the semi-finished product; The semi-finished product is subjected to a shot peening treatment, and a metal layer is plated on the outer surface of the semi-finished product to obtain the isolation ring.

2. The method for preparing an isolation ring for a slitting machine according to claim 1, wherein: The step of heat treating the workpiece to be processed comprises: Placing the workpiece to be processed in a vacuum environment and performing a quenching treatment on the workpiece to be processed within a first preset temperature range; wherein the first preset temperature range is 1030±1°C; The workpiece to be processed after quenching is tempered within a second preset temperature range; wherein the second preset temperature range is 580±1°C.

3. The method for preparing an isolation ring for a slitting machine according to claim 1, wherein: After the step of heat treating the workpiece to be processed, the method further includes: detecting residual stress of the workpiece after heat treatment, and comparing whether the residual stress is within a standard stress range; If yes, then the step of fine-machining the workpiece after heat treatment to obtain a circular ring intermediate of a preset size is performed; If not, the process returns to the step of heat treating the workpiece to be processed.

4. The method for preparing an isolation ring for a slitting machine according to claim 1, wherein: The preset size includes a preset thickness T, and the slotting parameters include a slotting width W and a slotting depth D; The step of calculating and obtaining the slotting parameters according to the preset dimensions comprises: According to the first ratio range A and the preset thickness T, the groove width W is calculated, and according to the second ratio range B and the preset thickness T, the groove depth D is calculated; wherein, the first ratio range A=W:T=0.4±0.05, and the second ratio range B=D:T=0.25±0.

03.

5. The method for preparing an isolation ring for a slitting machine according to any one of claims 1 to 4, characterized in that: The annular groove includes a groove bottom wall and two opposite groove side walls; The step of providing annular grooves on both the inner wall and the outer wall of the annular middle comprises: Two annular grooves are respectively provided on the inner wall and the outer wall of the annular intermediate object at corresponding positions, and transition fillets are formed at the connection between the side wall of each groove and the bottom wall of the groove.

6. The method for preparing an isolation ring for a slitting machine according to claim 5, wherein: The radius of the transition fillet is r, where r≥3mm.

7. The method for preparing an isolation ring for a slitting machine according to any one of claims 1 to 4, characterized in that: The step of plating a metal layer on the outer surface of the semi-finished product comprises: The outer surface of the semi-finished product is plated with metal chromium in a preset thickness range to form the metal layer, and the preset thickness range is 0.01 mm to 0.03 mm.

8. The method for preparing an isolation ring for a slitting machine according to any one of claims 1 to 4, characterized in that: The raw materials are metal-based composite materials, titanium alloy materials or ceramic-reinforced composite materials.

9. An isolation ring for a slitting machine, characterized in that: The isolation ring is prepared by the isolation ring preparation method for a slitting machine according to any one of claims 1 to 8.

10. A slitting machine, characterized in that: The longitudinal shearing machine is applied with the isolation ring as claimed in claim 9.

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