An automated cutting process for protecting zirconium tube corrosion specimens

Abstract

The present invention discloses an automated cutting process for protecting zirconium tube corrosion samples, which process includes: 1. applying a heat shrink film on the outer wall of the zirconium tube and heating it; 2. installing the coated zirconium tube in a feeding mechanism and moving it until it abuts against a cutter head and is clamped; 3. lifting the driven wheel; 4. driving the coated zirconium tube to rotate and leveling one end with the cutter head; 5. driving the cutter head to advance; 6. driving the coated zirconium tube to rotate and leveling it with the cutter head; 7. resetting the cutter head; 8. driving the cut zirconium tube to move until it abuts against the cutter head again and is clamped, and repeating the lifting, leveling, advancing, cutting and resetting processes to continuously obtain a cut zirconium tube. The present invention utilizes the protective effect of the coated heat shrink film to prevent the zirconium tube from being pinched or scratched during the cutting process, as well as from being contaminated by coolant or oil on the surface of the machine tool, thereby improving the flatness and dimensional accuracy, end face finish and surface quality of the cut zirconium tube, and facilitating the subsequent corrosion performance evaluation.

Description

Technical Field

[0001] The invention belongs to the technical field of metal material corrosion detection, and particularly relates to an automated cutting process for protecting zirconium tube corrosion samples. Background Art

[0002] Zirconium and its alloys, known for their excellent corrosion resistance and mechanical properties, are key materials for nuclear reactor core fuel cladding and structural components. As reactor technology advances toward improving fuel burnup, reducing fuel cycle costs, increasing reactor thermal efficiency, and enhancing safety and reliability, higher requirements are placed on key materials. Corrosion performance is a key evaluation indicator for zirconium and its alloys. The preparation of corrosion test specimens for zirconium tubes is a crucial step in corrosion testing. Corrosion test specimen preparation involves cutting a specific length from a longer tube and ensuring both ends are flat and smooth, free of contamination and scratches.

[0003] Because zirconium tubes are typically thin-walled, the cutting process can easily cause deformation and scratches on the chuck and cutting tool. Coolant or oil stains on machine tool surfaces can also contaminate the inner and outer surfaces of the tube. Ensuring dimensional accuracy, end surface finish, and a clean, scratch-free surface are significant challenges in corrosion specimen preparation, posing significant labor-intensive challenges. Therefore, an effective, automated cutting process that protects corrosion specimens is urgently needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the above-mentioned existing technologies and provide an automated cutting process for protecting zirconium tube corrosion specimens. This process coats the outer wall of the zirconium tube with POF heat-shrinkable film, heat-shrunk it, and then flattens and cuts the tube end with a rotational motion. This effectively prevents the zirconium tube from being pinched or scratched during the cutting process, as well as contamination from coolant or machine tool surface oil. This provides excellent protection, improves the dimensional accuracy, end surface finish, and surface quality of the cut zirconium tube, and solves the problems of deformation, scratching, and contamination of the zirconium tube during the cutting process.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automated cutting process for protecting zirconium tube corrosion samples, characterized by comprising the following steps:

[0006] Step 1: Cover the outer wall of the zirconium tube with a POF heat shrink film, and then use a hot air source to heat the POF heat shrink film so that the POF heat shrink film shrinks when heated until it is completely adhered to the outer wall of the zirconium tube and tightly stretched, thereby obtaining a coated zirconium tube;

[0007] Step 2: Install the coated zirconium tube obtained in step 1 into the feeding mechanism of the automated cutting equipment, and use the driving wheel of the feeding mechanism to drive one end of the coated zirconium tube through the spindle hole of the machine tool toward the cutter head until it contacts one side of the cutter head. Then, use the three-jaw chuck of the machine tool to clamp the coated zirconium tube; the clamping force used for the clamping is 0.8 MPa to 1.2 MPa.

[0008] Step 3: Lift the driven wheel of the feeding mechanism upwards;

[0009] Step 4: Rotate the three-jaw chuck of the machine tool to drive the coated zirconium tube to rotate, and use the cutter head to flatten one end of the coated zirconium tube to form a flat end; the speed used for flattening is 40r / min~50r / min, the feed rate is 0.1mm / min~0.15mm / min, the flattening length is 2mm, and the machine tool spindle stops after the knife edge feed pauses for more than 3s;

[0010] Step 5: Open the three-jaw chuck and use the slide box of the machine tool to drive the cutter head to move a predetermined distance along the flat end of the zirconium tube coated in step 4 toward the three-jaw chuck;

[0011] Step 6: Clamp the three-jaw chuck, drive the coated zirconium tube to rotate, and use the cutter head to cut the coated zirconium tube to obtain a cut zirconium tube; the cutting speed is 60 rpm to 80 rpm, the feed rate is 0.1 mm / min to 0.5 mm / min, and the length of the cut zirconium tube is equal to the predetermined distance;

[0012] Step 7: Use the slide box of the machine tool to drive the cutter head to reset;

[0013] Step 8. Release the three-jaw chuck, and use the active wheel of the feeding mechanism to close and drive the coated zirconium tube that has been cut off in step 6 to move toward the cutter head until it is back against one side of the cutter head. Then use the three-jaw chuck of the machine tool to clamp the cut coated zirconium tube, and repeat the lifting process in step 3, the leveling process in step 4, the moving process in step 5, the cutting process in step 6, and the resetting process in step 7 to continuously obtain the cut zirconium tube.

[0014] The above-mentioned automated cutting process for protecting zirconium tube corrosion samples is characterized in that the diameter of the zirconium tube in step one is 6 mm, the wall thickness is 0.5 mm, the thickness of the POF heat shrink film is 0.03 mm, and in step three, the driven wheel is lifted upward by 4 mm to 5 mm.

[0015] The above-mentioned automated cutting process for protecting zirconium tube corrosion specimens is characterized in that the three-jaw chuck in step 2 is provided with a notched elastic gasket for the coated zirconium tube to pass through, an opening is provided on the outer wall of the notched elastic gasket, and the outer wall of the notched elastic gasket is connected to one jaw of the three-jaw chuck and abuts against the other two jaws.

[0016] The above-mentioned automated cutting process for protecting zirconium tube corrosion specimens is characterized in that the notched elastic gasket is made of PU polyurethane, has a diameter of 9.5 mm, a wall thickness of 1.5 mm, an opening width of 3 mm, and the inner wall of the notched elastic gasket is provided with multiple corrugated grooves.

[0017] The above-mentioned automated cutting process for protecting zirconium tube corrosion specimens is characterized in that the driving wheel and the driven wheel of the feeding mechanism in step 2 are made of PU polyurethane, the driving wheel and the driven wheel are arranged opposite to each other, and arc-shaped grooves are provided on the opposite surfaces of the driving wheel and the driven wheel, and a clamping hole is formed for the coated zirconium tube to pass through, the driven wheel is connected to the electric push rod through a lever, and the end gap of the lever is connected to the limiting hole on the upper part of the electric push rod, and the rod body on the lever close to the electric push rod is connected to the inner wall of the feeding structure through a spring.

[0018] The above-mentioned automated cutting process for protecting zirconium tube corrosion specimens is characterized in that a cutting tip is provided at the end of the cutter head in step 2, and the angle α between the cutting tip and the main cutting edge is 10° to 15°, and the width H of the cutting tip is 2mm to 3mm. A curved blade surface for smoothing one end of the coated zirconium tube is provided on one side wall of the cutting tip.

[0019] The above-mentioned automated cutting process for protecting zirconium tube corrosion samples is characterized in that the end of the coated zirconium tube away from the cutter head in step 2 is also connected to a connecting rod, and the connecting rod is clamped in the clamping hole formed by the arc-shaped groove of the driving wheel and the arc-shaped groove of the driven wheel.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The present invention coats the outer wall of the zirconium tube with a POF heat-shrinkable film and heat-shrunk it, then feeds it into a feeding structure for tube end flattening, and then drives a cutter head to advance and rotate to cut the tube. The protective effect of the coated POF heat-shrinkable film effectively prevents the surface of the zirconium tube from being pinched or scratched during the cutting process, as well as from being contaminated by coolant or oil on the surface of the machine tool, thus playing a good protective role. Not only can a single zirconium tube be cut into multiple cut zirconium tubes of predetermined lengths, but the flatness of the end face of the cut zirconium tube is also improved, thereby improving the dimensional accuracy, end face smoothness, and surface quality of the cut zirconium tube, and facilitating subsequent corrosion performance evaluation.

[0022] 2. The present invention provides a notched elastic sleeve on the three-jaw chuck, and utilizes the notched elastic sleeve to buffer the coated zirconium tube, thereby further preventing the three-jaw chuck from clamping the zirconium tube. In combination with an opening on the outer wall of the notched elastic sleeve, the notched elastic sleeve is given a certain deformation margin during the process of the three-jaw chuck clamping the notched elastic sleeve, thereby ensuring the fit between the notched elastic sleeve and the outer wall of the coated zirconium tube, thereby improving the reliability of the three-jaw chuck in clamping the coated zirconium tube.

[0023] 3. The present invention arranges a plurality of corrugated grooves on the inner wall of the notched elastic gasket and utilizes the buffering and protective effect of the corrugated grooves to make the notched elastic gasket easier to deform, thereby improving the deformation uniformity of the notched elastic gasket during the clamping process of the three-jaw chuck, thereby improving the firmness of the notched elastic gasket in clamping the coated zirconium tube.

[0024] 4. The present invention utilizes a power device to drive the driving wheel to rotate, and the driving wheel drives the zirconium tube to feed, and utilizes the driven wheel to apply a clamping force to the zirconium tube, thereby preventing slippage between the coated zirconium tube and the driving wheel. At the same time, the driven wheel is lifted during the cutting process to loosen the coated zirconium tube. Arc grooves are provided on the opposite surfaces of the driving wheel and the driven wheel to support the coated zirconium tube and limit its swing when loose, thereby preventing it from being bent during rotation, and further avoiding deformation or scratches of the coated zirconium tube.

[0025] 5. The present invention cuts the zirconium tube by arranging a cutting tip at the end of the cutter head, and at the same time, an arc-shaped blade surface is arranged on the side wall of the cutting tip to flatten the end surface of the zirconium tube. Thus, without replacing the cutter head, the zirconium tube can be cut and the end surface of the zirconium tube can be flattened, which saves the tool changing operation and improves the cutting process efficiency.

[0026] 6. The present invention connects a connecting rod to the end of the coated zirconium tube away from the cutter head to extend the zirconium tube. When the remaining coated zirconium tube is short after multiple cuts, the connecting rod is driven by the active wheel to advance the coated zirconium tube, thereby ensuring normal feeding of the coated zirconium tube and effectively saving tube materials.

[0027] 7. Compared with the existing technology, the precision of the truncated zirconium tube obtained by the present invention can reach 0.04mm, the surface roughness of the end face can reach 0.8μm, and the truncated zirconium tube has no clamping marks and no deformation, which overcomes the difficulties of large size discreteness and uneven manual clamping force of traditional equipment for manual feeding, which makes the truncated zirconium tube easy to deform and leads to large numerical deviation in the subsequent corrosion test weighing link.

[0028] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the automatic cutting equipment of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the connecting rod in the automatic cutting equipment of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the three-jaw chuck in the automated cutting equipment of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the notched elastic gasket in the automated cutting equipment of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the cutter head in the automatic cutting equipment of the present invention.

[0034] Figure 6 for Figure 5 Schematic diagram of the structure of the AA surface;

[0035] Figure 7 for Figure 5 Schematic diagram of the structure of the middle BB surface.

[0036] Figure 8 It is a structural schematic diagram of the feeding mechanism in the automatic cutting equipment of the present invention.

[0037] Figure 9 This is a schematic diagram of the connection relationship between the driving wheel and the driven wheel in the automatic cutting equipment of the present invention.

[0038] Description of Reference Numerals

[0039] 1-1—Zirconium tube; 1-2—POF heat shrink film; 1-3—Cutter head;

[0040] 1-4—three-jaw chuck; 1-5—slide box; 2-1—notched elastic bushing;

[0041] 2-2—grip; 2-3—opening; 3—corrugated groove;

[0042] 4-1—driving wheel; 4-2—driven wheel; 4-3—electric push rod;

[0043] 4-4—limiting hole; 4-5—spring; 4-6—lever;

[0044] 5-1—Truncation tip; 5-2—Curved blade; 6—Connecting rod. DETAILED DESCRIPTION

[0045] Example 1

[0046] like Figures 1 to 8 As shown, this embodiment includes the following steps:

[0047] Step 1: A POF heat shrink film 1-2 with a thickness of 0.03 mm is placed on the outer wall of a zirconium tube 1-1 with a diameter of 6 mm and a wall thickness of 0.5 mm. The POF heat shrink film 1-2 is then heated using a hot air source so that the POF heat shrink film 1-2 shrinks when heated until it is completely adhered to the outer wall of the zirconium tube 1-1 and is tightly stretched, thereby obtaining a coated zirconium tube 1-1.

[0048] Step 2: Install the coated zirconium tube 1-1 obtained in step 1 into the feeding mechanism of the automated cutting equipment, and use the driving wheel 4-1 of the feeding mechanism to drive one end of the coated zirconium tube 1-1 through the spindle hole of the machine tool toward the cutter head 1-3 until it contacts one side of the cutter head 1-3, and then use the three-jaw chuck 1-4 of the machine tool to clamp the coated zirconium tube 1-1; the clamping force used for the clamping is 0.8 MPa to 1.2 MPa;

[0049] Step 3: Lift the driven wheel 4-2 of the feeding mechanism upward by 5mm;

[0050] Step 4: Rotate the three-jaw chuck 1-4 of the machine tool to drive the coated zirconium tube 1-1 to rotate, and use the cutter head 1-3 to flatten one end of the coated zirconium tube 1-1 to form a flat end; the rotation speed used for flattening is 40r / min~50r / min, the feed rate is 0.1mm / min~0.15mm / min, the flattening length is 2mm, and the spindle stops after the feed pauses for 3s;

[0051] Step 5: Open the three-jaw chuck 1-4, and use the slide box 1-5 of the machine tool to drive the cutter head 1-3 to move a predetermined distance along the flat end of the zirconium tube 1-1 coated in step 4 toward the three-jaw chuck 1-4;

[0052] Step 6: Clamp the three-jaw chuck 1-4, drive the coated zirconium tube 1-1 to rotate, and use the cutter head 1-3 to cut the coated zirconium tube 1-1 to obtain a cut zirconium tube; the cutting speed is 60 rpm to 80 rpm, the feed rate is 0.1 mm / min to 0.5 mm / min, and the length of the cut zirconium tube is equal to the predetermined distance;

[0053] Step 7: Use the slide box 1-5 of the machine tool to drive the cutter head 1-3 to reset;

[0054] Step 8. Release the three-jaw chuck 1-4, and use the driving wheel 4-1 of the feeding mechanism to close downward to drive the coated zirconium tube 1-1 that has been cut in step 6 to move toward the cutter head 1-3 until it is back against one side of the cutter head 1-3. Then use the three-jaw chuck 1-4 of the machine tool to clamp the cut coated zirconium tube 1-1, repeat the lifting process in step 3, the leveling process in step 4, the moving process in step 5, the cutting process in step 6 and the resetting process in step 7 to continuously obtain cut zirconium tubes.

[0055] like Figure 3 and Figure 4 As shown, further, in step 2 of this embodiment, the three-jaw chuck 1-4 is provided with a notched elastic sleeve 2-1 for the coated zirconium tube 1-1 to pass through, and an opening 2-3 is provided on the outer wall of the notched elastic sleeve 2-1, and the outer wall of the notched elastic sleeve 2-1 is connected to one jaw 2-2 of the three-jaw chuck 1-4 and abuts against the other two jaws 2-2.

[0056] Furthermore, the notched elastic gasket 2-1 of this embodiment is made of PU polyurethane, has a diameter of 9.5 mm, a wall thickness of 1.5 mm, a width of the opening 2-3 of 3 mm, and a plurality of corrugated grooves 3 are provided on the inner wall of the notched elastic gasket 2-1.

[0057] like Figure 1 、 Figure 8 and Figure 9 As shown, further, the material of the driving wheel 4-1 and the driven wheel 4-2 of the feeding mechanism in step 2 of this embodiment is PU polyurethane, the driving wheel 4-1 and the driven wheel 4-2 are arranged opposite to each other, and arc grooves are provided on the opposite surfaces of the driving wheel 4-1 and the driven wheel 4-2, and a clamping hole is formed for the coated zirconium tube 1-1 to pass through, and the driven wheel 4-2 is connected to the electric push rod 4-3 through a lever 4-6, and the end gap of the lever 4-6 is connected to the limiting hole 4-4 on the upper part of the electric push rod 4-3, and the rod body of the lever 4-6 close to the electric push rod 4-3 is connected to the inner wall of the feeding structure through a spring 4-5.

[0058] Typically, a photoelectric sensor is connected to the cutter head 1-3, preferably a CX441-P sensor. The photoelectric sensor is used to measure the distance between the cutter head 1-3 and the coated zirconium tube 1-1. When the coated zirconium tube 1-1 contacts one side of the measuring cutter head 1-3, the photoelectric sensor controls the electric push rod 4-3 to move downward, thereby causing the lever 4-6 connected to the limit hole 4-4 on the upper part of the electric push rod 4-3 to drive the driven wheel 4-2 to lift upward, thereby facilitating the rotation of the coated zirconium tube 1-1 to smooth the end. After the cutting process is completed and the cutter head 1-3 is reset, the photoelectric sensor is used to control the electric push rod 4-3 to move downward. The electric push rod 4-3 is controlled to move upward, so that the lever 4-6 connected to the limiting hole 4-4 on the upper part of the electric push rod 4-3 drives the driven wheel 4-2 to close downward, and drives the cut coated zirconium tube 1-1 to move toward the cutter head 1-3. At the same time, there is a certain gap between the lever 4-6 and the lower end of the limiting hole 4-4, and the spring 4-5 pulls the lever 4-6 to ensure the stability of the gap, so as to prevent the driven wheel 4-2 from pressing tightly on the coated zirconium tube 1-1 and causing surface damage.

[0059] like Figures 5 to 7As shown, further, in step 2 of this embodiment, a truncated blade tip 5-1 is provided at the end of the cutter head 1-3, and the angle α between the truncated blade tip 5-1 and the main cutting edge is 10°~15°, and the width H of the truncated blade tip 5-1 is 2mm~3mm, and an arc-shaped blade surface 5-2 for smoothing one end of the coated zirconium tube 1-1 is provided on one side wall of the truncated blade tip 5-1.

[0060] like Figure 2 As shown, further, the end of the coated zirconium tube 1-1 away from the cutter head 1-3 in step 2 of this embodiment is also connected to a connecting rod 6, and the connecting rod 6 is clamped in the clamping hole formed by the arc groove of the driving wheel 4-1 and the arc groove of the driven wheel 4-2.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent variation made to the above embodiment based on the essence of the invention technology shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An automated cutting process for protecting zirconium tube corrosion specimens, characterized in that: The following steps are involved: Step 1: Covering the outer wall of the zirconium tube (1-1) with a POF heat shrinkable film (1-2), and then heating the POF heat shrinkable film (1-2) with a hot air source, so that the POF heat shrinkable film (1-2) shrinks when heated until it is completely adhered to the outer wall of the zirconium tube (1-1) and tightly stretched, thereby obtaining a coated zirconium tube (1-1); Step 2: Install the coated zirconium tube (1-1) obtained in step 1 in the feeding mechanism of the automated cutting equipment, and use the driving wheel (4-1) of the feeding mechanism to drive one end of the coated zirconium tube (1-1) through the main shaft hole of the machine tool to move toward the cutter head (1-3) until it abuts against one side of the cutter head (1-3), and then use the three-jaw chuck (1-4) of the machine tool to clamp the coated zirconium tube (1-1); the clamping force used for the clamping is 0.8MPa to 1.2MPa; Step 3: Lift the driven wheel (4-2) of the feeding mechanism upwards; Step 4: rotating the three-jaw chuck (1-4) of the machine tool to drive the coated zirconium tube (1-1) to rotate, and using the cutter head (1-3) to flatten one end of the coated zirconium tube (1-1) to form a flat end; the rotation speed used for the flattening is 40r / min to 50r / min, the feed rate is 0.1mm / min to 0.15mm / min, the flattening length is 2mm, and after the cutting edge feed pauses for more than 3s, the machine tool spindle stops; Step 5: Open the three-jaw chuck (1-4), and use the slide box (1-5) of the machine tool to drive the tool head (1-3) to move a predetermined distance along the flat end of the zirconium tube (1-1) coated in step 4 toward the three-jaw chuck (1-4); Step 6: Clamp the three-jaw chuck (1-4), drive the coated zirconium tube (1-1) to rotate, and use the cutter head (1-3) to cut the coated zirconium tube (1-1) to obtain a cut zirconium tube; the cutting speed is 60 rpm to 80 rpm, the feed rate is 0.1 mm / min to 0.5 mm / min, and the length of the cut zirconium tube is equal to the predetermined distance; Step 7: Using the slide box (1-5) of the machine tool to drive the cutter head (1-3) to reset; Step 8: Release the three-jaw chuck (1-4), and use the driving wheel (4-1) of the feeding mechanism to close and drive the coated zirconium tube (1-1) that has been cut in step 6 to move toward the cutter head (1-3) until it is back against one side of the cutter head (1-3), and then use the three-jaw chuck (1-4) of the machine tool to clamp the cut coated zirconium tube (1-1), and repeat the lifting process in step 3, the leveling process in step 4, the moving process in step 5, the cutting process in step 6, and the resetting process in step 7 to continuously obtain the cut zirconium tube.

2. The automated cutting process for protecting zirconium tube corrosion specimens according to claim 1, characterized in that: In step 1, the diameter of the zirconium tube (1-1) is 6 mm, the wall thickness is 0.5 mm, the thickness of the POF heat shrink film (1-2) is 0.03 mm, and in step 3, the driven wheel (4-2) is lifted up by 4 mm to 5 mm.

3. The automated cutting process for protecting zirconium tube corrosion specimens according to claim 1 is characterized in that: In step 2, the three-jaw chuck (1-4) is provided with a notched elastic sleeve (2-1) for the coated zirconium tube (1-1) to pass through, an opening (2-3) is provided on the outer wall of the notched elastic sleeve (2-1), and the outer wall of the notched elastic sleeve (2-1) is connected to one jaw (2-2) of the three-jaw chuck (1-4) and abuts against the other two jaws (2-2).

4. The automated cutting process for protecting zirconium tube corrosion specimens according to claim 3 is characterized in that: The notched elastic gasket (2-1) is made of PU polyurethane, has a diameter of 9.5 mm, a wall thickness of 1.5 mm, an opening (2-3) with a width of 3 mm, and an inner wall of the notched elastic gasket (2-1) is provided with a plurality of corrugated grooves (3).

5. The automated cutting process for protecting zirconium tube corrosion specimens according to claim 1, characterized in that: The driving wheel (4-1) and the driven wheel (4-2) of the feeding mechanism described in step 2 are made of PU polyurethane. The driving wheel (4-1) and the driven wheel (4-2) are arranged opposite to each other, and arc grooves are provided on the opposite surfaces of the driving wheel (4-1) and the driven wheel (4-2), and a clamping hole is formed for the coated zirconium tube (1-1) to pass through. The driven wheel (4-2) is connected to the electric push rod (4-3) through a lever (4-6), and the end gap of the lever (4-6) is connected to the limiting hole (4-4) on the upper part of the electric push rod (4-3). The rod body of the lever (4-6) close to the electric push rod (4-3) is connected to the inner wall of the feeding structure through a spring (4-5).

6. The automated cutting process for protecting zirconium tube corrosion specimens according to claim 1, characterized in that: In step 2, a truncated blade tip (5-1) is provided at the end of the blade head (1-3), and the angle α between the truncated blade tip (5-1) and the main cutting edge is 10° to 15°, and the width H of the truncated blade tip (5-1) is 2mm to 3mm. A curved blade surface (5-2) for leveling one end of the coated zirconium tube (1-1) is provided on one side wall of the truncated blade tip (5-1).

7. The automated cutting process for protecting zirconium tube corrosion specimens according to claim 5, characterized in that: The end of the coated zirconium tube (1-1) away from the cutter head (1-3) in step 2 is also connected to a connecting rod (6), and the connecting rod (6) is clamped in a clamping hole formed by the arc groove of the driving wheel (4-1) and the arc groove of the driven wheel (4-2).

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