Molybdenum-titanium-zirconium alloy nano-polishing solution and molybdenum-titanium-zirconium alloy workpiece nano-polishing method

Abstract

The application provides a molybdenum-titanium-zirconium alloy nanometer polishing liquid and a molybdenum-titanium-zirconium alloy workpiece nanometer polishing method. The molybdenum-titanium-zirconium alloy nanometer polishing liquid comprises solvent water, and further comprises 2-4% of sodium sulfate and 0.6-1.5% of an additive in terms of the mass percentage of the solvent water, the additive is a water-soluble additive, and the additive comprises 0.1-0.5% of a stabilizer and 0.5-1% of a chelating agent. The molybdenum-titanium-zirconium alloy nanometer polishing liquid can conveniently and quickly complete polishing of the molybdenum-titanium-zirconium alloy workpiece and improve the surface gloss of the molybdenum-titanium-zirconium alloy workpiece by setting the components. Meanwhile, the molybdenum-titanium-zirconium alloy nanometer polishing liquid is used for polishing the molybdenum-titanium-zirconium alloy workpiece, and the polishing parameters of the polishing process are set, so that the surface roughness of the molybdenum-titanium-zirconium alloy workpiece can be efficiently reduced, and the gloss of the molybdenum-titanium-zirconium alloy workpiece can be effectively improved.

Description

Technical Field

[0001] This invention relates to a molybdenum-titanium-zirconium alloy nanopolishing slurry and a nanopolishing method for molybdenum-titanium-zirconium alloy workpieces polished using the molybdenum-titanium-zirconium alloy nanopolishing slurry, belonging to the field of metal polishing. Background Technology

[0002] Molybdenum-titanium-zirconium alloy (TZM molybdenum alloy) has excellent room temperature and high temperature mechanical properties and has a wide range of applications in military, aerospace and high temperature structural components.

[0003] In fact, to ensure the service life and performance of molybdenum-titanium-zirconium alloy workpieces, they need to be polished before actual use. Plasma nanopolishing technology, a special method for polishing molybdenum-titanium-zirconium alloy workpieces, is based on the principle of vapor-liquid plasma generation. It uses a polishing slurry to form a complete gas layer enveloping the workpiece surface and excites it to a plasma state, allowing the surface roughness of the polished workpiece to reach or approach the nanometer level. Furthermore, because the polishing slurry can be applied according to the shape, plasma nanopolishing technology has the advantage of not altering the surface properties of the material.

[0004] In view of this, it is indeed necessary to propose a new nanopolishing method for molybdenum-titanium-zirconium alloy workpieces to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a molybdenum-titanium-zirconium alloy nanopolishing slurry and a nanopolishing method for molybdenum-titanium-zirconium alloy workpieces polished using the molybdenum-titanium-zirconium alloy nanopolishing slurry, so as to improve the gloss of the molybdenum-titanium-zirconium alloy workpieces while efficiently reducing the surface roughness of the molybdenum-titanium-zirconium alloy workpieces.

[0006] To achieve the above-mentioned objective, the present invention provides a molybdenum-titanium-zirconium alloy nanopolishing liquid, comprising water as a solvent, and further comprising 2-4% sodium sulfate and 0.6-1.5% additives by mass percentage of the water, wherein the additives are water-soluble additives, including 0.1-0.5% stabilizer and 0.5-1% chelating agent.

[0007] As a further improvement of the present invention, the stabilizer is 0.1-0.5% glycerol and the chelating agent is 0.5-1% sodium gluconate.

[0008] To achieve the above-mentioned objectives, the present invention also provides a nano-polishing method for molybdenum-titanium-zirconium alloys, comprising the following steps:

[0009] S1. Dissolve 2-4% sodium sulfate and 0.6-1.5% additives in water to prepare a molybdenum-titanium-zirconium alloy nanopolishing solution.

[0010] S2. The molybdenum-titanium-zirconium alloy nano-polishing liquid is transferred to the polishing tank of the power supply system, and the polishing tank is connected to the negative terminal of the power supply system to form a cathode for polishing.

[0011] S3. Connect the untreated molybdenum-titanium-zirconium alloy workpiece to the positive terminal of the power supply system, and make the molybdenum-titanium-zirconium alloy workpiece serve as the anode for polishing.

[0012] S4. Connect the power system to energize the cathode and the anode, and polish the molybdenum-titanium-zirconium alloy workpiece using a constant voltage processing mode;

[0013] S5. Remove the polished molybdenum-titanium-zirconium alloy workpiece from the polishing tank, and clean and dry the molybdenum-titanium-zirconium alloy workpiece to obtain the polished molybdenum-titanium-zirconium alloy workpiece.

[0014] As a further improvement of the present invention, in step S1, the molybdenum-titanium-zirconium alloy nanopolishing liquid is prepared by mixing and dissolving at a temperature of 85°C.

[0015] As a further improvement of the present invention, step S4 specifically involves turning on the power supply of the power system, slowly placing the molybdenum-titanium-zirconium alloy workpiece, which serves as the anode, into the polishing tank, and allowing the molybdenum-titanium-zirconium alloy workpiece to fully react with the molybdenum-titanium-zirconium alloy nano-polishing liquid under constant pressure processing conditions.

[0016] As a further improvement of the present invention, the constant voltage processing mode specifically involves reacting the molybdenum-titanium-zirconium alloy workpiece with the molybdenum-titanium-zirconium alloy nano-polishing liquid under a constant voltage condition, wherein the voltage is 305±5V.

[0017] As a further improvement of the present invention, the reaction time between the molybdenum-titanium-zirconium alloy workpiece and the molybdenum-titanium-zirconium alloy nanopolishing liquid is 1 to 10 minutes.

[0018] As a further improvement of the present invention, step S5 specifically involves removing the polished molybdenum-titanium-zirconium alloy workpiece from the polishing tank, cleaning the reacted molybdenum-titanium-zirconium alloy workpiece with deionized water, and drying it to obtain the polished molybdenum-titanium-zirconium alloy workpiece.

[0019] As a further improvement of the present invention, the titanium content in the molybdenum-titanium-zirconium alloy workpiece is 0.4-0.7%; the zirconium content is 0.06-0.12%.

[0020] The beneficial effects of this invention are as follows: By setting its components, the molybdenum-titanium-zirconium alloy nanopolishing slurry of this invention can improve the surface gloss of molybdenum-titanium-zirconium alloy workpieces while conveniently and quickly completing the polishing process. Furthermore, by using the molybdenum-titanium-zirconium alloy nanopolishing slurry of this invention for nanopolishing of molybdenum-titanium-zirconium alloy workpieces, and by setting the polishing parameters of the nanopolishing process, the surface roughness of the molybdenum-titanium-zirconium alloy workpieces can be reduced efficiently, and the surface gloss of the molybdenum-titanium-zirconium alloy workpieces can be effectively improved. Attached Figure Description

[0021] Figure 1 This is a schematic flowchart of the nanopolishing method for molybdenum-titanium-zirconium alloy workpieces according to the present invention.

[0022] Figure 2 This is a schematic diagram of the power supply system during polishing using the nanopolishing method for molybdenum-titanium-zirconium alloy workpieces of the present invention.

[0023] Figure 3 This is a curve showing the change in surface roughness of the molybdenum-titanium-zirconium alloy workpiece with polishing time in Example 1.

[0024] Figure 4 This is a graph showing the change in surface gloss of the molybdenum-titanium-zirconium alloy workpiece with polishing time in Example 1.

[0025] Figure 5 This is a curve showing the change in surface roughness of the molybdenum-titanium-zirconium alloy workpiece with polishing time in Example 2.

[0026] Figure 6 This is a curve showing the change in surface gloss of the molybdenum-titanium-zirconium alloy workpiece with polishing time in Example 2.

[0027] Figure 7 This is a curve showing the change in surface roughness of the molybdenum-titanium-zirconium alloy workpiece with polishing time in Example 3.

[0028] Figure 8 This is a curve showing the change in surface gloss of the molybdenum-titanium-zirconium alloy workpiece with polishing time in Example 3. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0031] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The present invention provides a molybdenum-titanium-zirconium alloy nanopolishing slurry 100, which includes water as a solvent. By mass percentage of the water, the molybdenum-titanium-zirconium alloy nanopolishing slurry also includes 2-4% sodium sulfate and 0.6-1.5% additives; specifically, the additives include 0.1-0.5% glycerol and 0.5-1% glucose salt.

[0033] In fact, when polishing metal workpieces using plasma polishing, a momentary short circuit occurs when the metal workpiece comes into contact with the plasma polishing slurry, releasing a large amount of heat. At this time, the water vapor generated by the high temperature will cover a gas layer on the surface of the plasma polishing slurry and the metal workpiece. Due to the high pressure, the gas layer will be broken down to form a discharge channel. A large number of electrons collide with the surface of the metal workpiece in this channel, causing the metal to melt rapidly. The microscopic protrusions on the surface will preferentially form discharge channels, thus reducing the roughness of the metal surface. This setting allows the chemical reaction and discharge removal to occur simultaneously. When the rate of discharge removal exceeds the rate of chemical reaction on the surface, the polishing effect is achieved.

[0034] In this invention, sodium sulfate is preferred as the plasma donor in the plasma ionization process. Sodium sulfate is a strong electrolyte, which can provide a large number of free charged ions during the ionization of the molybdenum-titanium-zirconium alloy nano-polishing liquid 100, thereby accelerating the removal of dirt / protrusions from the surface of the metal workpiece by the discharge of the molybdenum-titanium-zirconium alloy nano-polishing liquid 100. At the same time, the sodium sulfate solution is neutral, which reduces the rate of chemical reaction on the surface of the metal workpiece, thereby enabling rapid polishing. From an industrial production perspective, sodium sulfate has a relatively low cost and causes less environmental pollution.

[0035] Furthermore, the molybdenum-titanium-zirconium alloy nano-polishing slurry 100 of the present invention uses water-soluble additives. In fact, when polishing metal workpieces with complex surface structures using plasma polishing methods, the reaction is relatively violent. During the reaction, the unstable plasma discharge gas layer on the surface of the metal workpiece will cause uneven polishing. In the present invention, water-soluble glycerol is used as a stabilizer, which can effectively improve the uniformity of the polishing process. At the same time, using a single sulfate as a polishing slurry will cause a small amount of black oxide to be generated on the surface of the metal workpiece. This oxide is only a thin film adhering to the local surface of the metal. It can be removed by simple grinding later without the use of additives. However, if the film is generated in a complex shape, it will be relatively difficult to deal with. In the present invention, the water-soluble glucose salt is used as a chelating agent, which can effectively remove the black oxide on the metal surface, making the process of treating metal workpieces more efficient.

[0036] Please see Figure 1 , Figure 2 The image shows a nano-polishing method for molybdenum-titanium-zirconium alloy workpieces provided by this invention. The nano-polishing method for molybdenum-titanium-zirconium alloy workpieces includes the following steps:

[0037] S1. Dissolve 2-4% sodium sulfate and 0.6-1.5% additives in water to prepare a molybdenum-titanium-zirconium alloy nanopolishing solution.

[0038] S2. Transfer the molybdenum-titanium-zirconium alloy nano-polishing slurry to the polishing tank of the power system, and connect the polishing tank to the negative terminal of the power system to form a cathode for polishing.

[0039] S3. Connect the untreated molybdenum-titanium-zirconium alloy workpiece to the positive terminal of the power supply system, and make the molybdenum-titanium-zirconium alloy workpiece the anode for polishing.

[0040] S4. Connect the power system to energize the cathode and anode, and polish the molybdenum-titanium-zirconium alloy workpiece using a constant voltage processing mode;

[0041] S5. Remove the polished molybdenum-titanium-zirconium alloy workpiece from the polishing tank, and clean and dry the workpiece to obtain the polished molybdenum-titanium-zirconium alloy workpiece.

[0042] The following instruction manual will describe S1 to S5 in detail.

[0043] In S1, the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 is prepared by mixing and dissolving at a temperature of 85±5℃. Preferably, in this invention, the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 is prepared by mixing at a stable temperature of 85℃. This makes the polishing reaction more stable when using the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 for polishing, avoiding the inability to form a plasma gas layer due to excessively low temperature, thus preventing polishing, or the waste of resources due to excessively high temperature.

[0044] Polishing of the molybdenum-titanium-zirconium alloy workpiece 300 is performed in a power supply system 200. In this invention, the polishing tank 201 of the power supply system 200 is a stainless steel metal polishing tank, and the negative electrode 202 of the power supply is directly or indirectly electrically connected to the polishing tank 201. Specifically, S2 involves transferring the molybdenum-titanium-zirconium alloy nano-polishing liquid 100 into the polishing tank 201 of the power supply system 200, and connecting the polishing tank 201 to the negative electrode 202 of the power supply system 200 to form a cathode. Of course, in other embodiments of this invention, the polishing tank 201 can also be a metal polishing tank made of other metal materials, as long as the metal polishing tank is connected to the negative electrode of the power supply, allowing the solution contained within to be energized as the negative electrode, forming a circuit with the workpiece at the positive electrode.

[0045] In a preferred embodiment of the present invention, the preparation of the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 is carried out in an external storage tank. In this case, step S2 includes transferring the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 to the polishing tank 201 of the power system 200. Of course, in other embodiments of the present invention, the preparation of the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 can also be carried out directly in the polishing tank 201. In this case, the transfer step of the molybdenum-titanium-zirconium alloy nanopolishing slurry 100 can be omitted.

[0046] S3 specifically involves connecting the molybdenum-titanium-zirconium alloy workpiece 300 to the positive terminal of the power supply system 200, so that the molybdenum-titanium-zirconium alloy workpiece 300 becomes the anode after being energized. Furthermore, in this invention, the molybdenum-titanium-zirconium alloy workpiece 300 is an untreated molybdenum-titanium-zirconium alloy workpiece, that is, in this invention, there is no need to perform pretreatment processes such as degreasing, rinsing and water washing on the molybdenum-titanium-zirconium alloy workpiece 300, and it can be used directly after being energized, which effectively improves the convenience of plasma polishing of the molybdenum-titanium-zirconium alloy workpiece 300.

[0047] S4 specifically involves turning on the power supply of the power system 200, slowly placing the molybdenum-titanium-zirconium alloy workpiece 300, which serves as the anode, into the polishing tank 201, and allowing the molybdenum-titanium-zirconium alloy workpiece 300 to react with the molybdenum-titanium-zirconium alloy nano-polishing liquid 100 under constant pressure processing conditions.

[0048] Specifically, in S4, the constant voltage processing mode involves reacting the molybdenum-titanium-zirconium alloy workpiece 300 with the molybdenum-titanium-zirconium alloy nano-polishing slurry 100 under a constant voltage condition, with the constant voltage being 305±5V. Preferably, the voltage during the reaction between the molybdenum-titanium-zirconium alloy workpiece 300 and the molybdenum-titanium-zirconium alloy nano-polishing slurry 100 is 305V. Furthermore, the reaction time between the molybdenum-titanium-zirconium alloy workpiece 300 and the molybdenum-titanium-zirconium alloy nano-polishing slurry 100 is 1–15 min.

[0049] Furthermore, the molybdenum-titanium-zirconium alloy workpiece 300, which serves as the anode, descends at a speed of 10 mm / s. This setting allows for a more uniform gas layer to be formed on the surface of the molybdenum-titanium-zirconium alloy workpiece 300 when polished with the molybdenum-titanium-zirconium alloy nano-polishing liquid 100, thus ensuring consistency and uniformity during the plasma polishing process.

[0050] S5 specifically involves removing the polished molybdenum-titanium-zirconium alloy workpiece 300 from the polishing tank 201, cleaning and drying the reacted molybdenum-titanium-zirconium alloy workpiece 300 with deionized water, and obtaining the polished molybdenum-titanium-zirconium alloy workpiece.

[0051] The present invention will be further described below through specific embodiments and comparative examples.

[0052] Example 1

[0053] In Example 1, the specific composition of the molybdenum-titanium-zirconium alloy workpiece 300 is shown in Table 1 below:

[0054] Table 1 Composition of molybdenum-titanium-zirconium alloy workpieces

[0055]

[0056] Furthermore, the polishing process of the molybdenum-titanium-zirconium alloy workpiece 300 specifically includes:

[0057] S1. Using water as a solvent, at a stable temperature of 85℃, dissolve 2% sodium sulfate, 0.1% glycerol, and 0.5% sodium gluconate in water according to the mass percentage of water to obtain 100% molybdenum-titanium-zirconium alloy nanopolishing liquid.

[0058] S2. Transfer the molybdenum-titanium-zirconium alloy nano-polishing liquid 100 into the stainless steel polishing tank 201, and connect the polishing tank 201 to the negative terminal of the power supply 202 to form a cathode.

[0059] S3. Connect the molybdenum-titanium-zirconium alloy workpiece 300 to the positive terminal 203 of the power supply system 200 as the anode;

[0060] S4. Power on the power system 200 to energize the cathode and anode. Slowly immerse the anode in the molybdenum-titanium-zirconium alloy nano-polishing liquid 100. Polish the molybdenum-titanium-zirconium alloy workpiece 300 for 10 minutes under a constant voltage processing mode of 305V. Detect the surface roughness and gloss of the molybdenum-titanium-zirconium alloy workpiece 300 every minute. The detection results are as follows: Figure 3 , Figure 4 As shown;

[0061] S5. Remove the polished molybdenum-titanium-zirconium alloy workpiece 300 from the polishing tank 201, and clean and dry the molybdenum-titanium-zirconium alloy workpiece 300 to obtain the polished molybdenum-titanium-zirconium alloy workpiece 300.

[0062] See Figure 3 and Figure 4 It can be seen that using the nanopolishing method of the molybdenum-titanium-zirconium alloy workpiece in this embodiment to polish the molybdenum-titanium-zirconium alloy workpiece 300 can reduce the surface roughness of the molybdenum-titanium-zirconium alloy workpiece 300 from 4.13μm to 0.55μm after 10 minutes, and significantly increase the gloss, with good polishing effect and polishing efficiency.

[0063] Example 2

[0064] In Example 2, the composition of the molybdenum-titanium-zirconium alloy workpiece 300 is shown in Table 1 above. Furthermore, the polishing process of the molybdenum-titanium-zirconium alloy workpiece 300 specifically includes:

[0065] S1. Using water as a solvent, at a temperature of 85°C, dissolve 4% sodium sulfate, 0.5% glycerol, and 1% sodium gluconate in water according to the mass percentage of water to obtain 100% molybdenum-titanium-zirconium alloy nanopolishing liquid.

[0066] S2. Transfer the molybdenum-titanium-zirconium alloy nano-polishing liquid 100 into the stainless steel polishing tank 201, and connect the polishing tank 201 to the negative terminal of the power supply 202 to form a cathode.

[0067] S3. Connect the molybdenum-titanium-zirconium alloy workpiece 300 to the positive terminal 203 of the power supply system 200 as the anode;

[0068] S4. Power on the power system 200 to energize the cathode and anode. Slowly immerse the anode in the molybdenum-titanium-zirconium alloy nano-polishing liquid 100. Polish the molybdenum-titanium-zirconium alloy workpiece 300 for 10 minutes under a constant voltage processing mode of 305V. Detect the surface roughness and gloss of the molybdenum-titanium-zirconium alloy workpiece 300 every minute. The detection results are as follows: Figure 5 , Figure 6 As shown;

[0069] S5. Remove the polished molybdenum-titanium-zirconium alloy workpiece 300 from the polishing tank 201, and clean and dry the molybdenum-titanium-zirconium alloy workpiece 300 to obtain the polished molybdenum-titanium-zirconium alloy workpiece 300.

[0070] See Figure 5 and Figure 6 It can be seen that using the nano-polishing method of the molybdenum-titanium-zirconium alloy workpiece in this embodiment to polish the molybdenum-titanium-zirconium alloy workpiece 300 can reduce the surface roughness of the molybdenum-titanium-zirconium alloy workpiece 300 from 3.79μm to 0.31μm after 10 minutes, and significantly increase the gloss, with good polishing effect and polishing efficiency.

[0071] Example 3

[0072] In Example 3, the composition of the molybdenum-titanium-zirconium alloy workpiece 300 is shown in Table 1 above. Furthermore, the polishing process of the molybdenum-titanium-zirconium alloy workpiece 300 specifically includes:

[0073] S1. Using water as a solvent, at a temperature of 85°C, dissolve 5% sodium sulfate, 0.3% glycerol, and 0.7% sodium gluconate in water according to the mass percentage of water to obtain 100% molybdenum-titanium-zirconium alloy nanopolishing liquid.

[0074] S2. Transfer the molybdenum-titanium-zirconium alloy nano-polishing liquid 100 into the stainless steel polishing tank 201, and connect the polishing tank 201 to the negative terminal of the power supply 202 to form a cathode.

[0075] S3. Connect the molybdenum-titanium-zirconium alloy workpiece 300 to the positive terminal 203 of the power supply system 200 as the anode;

[0076] S4. Power on the power system 200 to energize the cathode and anode. Slowly immerse the anode in the molybdenum-titanium-zirconium alloy nano-polishing liquid 100. Polish the molybdenum-titanium-zirconium alloy workpiece 300 for 10 minutes under a constant voltage processing mode of 305V. Detect the surface roughness and gloss of the molybdenum-titanium-zirconium alloy workpiece 300 every minute. The detection results are as follows: Figure 7 , Figure 8 As shown;

[0077] S5. Remove the polished molybdenum-titanium-zirconium alloy workpiece 300 from the polishing tank 201, and clean and dry the molybdenum-titanium-zirconium alloy workpiece 300 to obtain the polished molybdenum-titanium-zirconium alloy workpiece 300.

[0078] See Figure 7 and Figure 8It can be seen that using the nanopolishing method of the molybdenum-titanium-zirconium alloy workpiece in this embodiment to polish the molybdenum-titanium-zirconium alloy workpiece 300 can reduce the surface roughness of the molybdenum-titanium-zirconium alloy workpiece 300 from 3.94μm to 0.28μm after 10 minutes, and significantly increase the gloss, with good polishing effect and polishing efficiency.

[0079] As can be seen, the surface roughness of the molybdenum-titanium-zirconium alloy workpiece 300 polished using the molybdenum-titanium-zirconium alloy nano polishing liquid 100 provided by the present invention is significantly reduced, and the polishing time is short, which effectively improves the polishing efficiency of the molybdenum-titanium-zirconium alloy workpiece 300. Moreover, the polished molybdenum-titanium-zirconium alloy workpiece 300 has good gloss.

[0080] In summary, the molybdenum-titanium-zirconium alloy nano-polishing slurry 100 of the present invention, by setting its components, facilitates and quickly polishes the molybdenum-titanium-zirconium alloy workpiece 300. Furthermore, by using the molybdenum-titanium-zirconium alloy nano-polishing slurry 100 of the present invention to polish the molybdenum-titanium-zirconium alloy workpiece 300, and by setting the polishing parameters during the polishing process, the surface roughness of the molybdenum-titanium-zirconium alloy workpiece 300 can be reduced efficiently, and the gloss of the molybdenum-titanium-zirconium alloy workpiece 300 can be significantly improved.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A polishing slurry for molybdenum-titanium-zirconium alloys, characterized in that: It includes water as a solvent, and by mass percentage of the water as a solvent, it also includes 2-4% sodium sulfate, 0.1-0.5% glycerol, and 0.5-1% sodium gluconate.

2. A polishing method for molybdenum-titanium-zirconium alloy workpieces, characterized in that, Includes the following steps: S1. Take water as a solvent, add sodium sulfate, glycerol, and sodium gluconate to prepare a polishing slurry for molybdenum-titanium-zirconium alloy; the content of sodium sulfate is 2-4% by mass percentage of the water as a solvent, the content of glycerol is 0.1-0.5%, and the content of sodium gluconate is 0.5-1%. S2. The molybdenum-titanium-zirconium alloy polishing slurry is transferred to a polishing tank including a power supply system, and the polishing tank is connected to the negative terminal of the power supply system to form a cathode for polishing. S3. Connect the untreated molybdenum-titanium-zirconium alloy workpiece to the positive terminal of the power supply system, and make the molybdenum-titanium-zirconium alloy workpiece serve as the anode for polishing. S4. Connect the power system to energize the cathode and the anode, and polish the molybdenum-titanium-zirconium alloy workpiece using a constant voltage processing mode; wherein, the constant voltage processing mode specifically means that the molybdenum-titanium-zirconium alloy workpiece reacts with the molybdenum-titanium-zirconium alloy polishing liquid under a constant voltage condition, and the voltage is 305±5V. S5. Remove the polished molybdenum-titanium-zirconium alloy workpiece from the polishing tank, and clean and dry the molybdenum-titanium-zirconium alloy workpiece to obtain the polished molybdenum-titanium-zirconium alloy workpiece.

3. The polishing method for molybdenum-titanium-zirconium alloy workpieces according to claim 2, characterized in that: In step S1, the molybdenum-titanium-zirconium alloy polishing slurry is prepared by mixing and dissolving at a temperature of 85±5℃.

4. The polishing method for molybdenum-titanium-zirconium alloy workpieces according to claim 2, characterized in that: Specifically, step S4 involves turning on the power supply of the power system, slowly placing the molybdenum-titanium-zirconium alloy workpiece, which serves as the anode, into the polishing tank, and allowing the molybdenum-titanium-zirconium alloy workpiece to fully react with the molybdenum-titanium-zirconium alloy polishing liquid under constant pressure processing conditions.

5. The polishing method for molybdenum-titanium-zirconium alloy workpieces according to claim 4, characterized in that: The reaction time between the molybdenum-titanium-zirconium alloy workpiece and the molybdenum-titanium-zirconium alloy polishing liquid is 1 to 10 minutes.

6. The polishing method for molybdenum-titanium-zirconium alloy workpieces according to claim 2, characterized in that: Specifically, step S5 involves removing the polished molybdenum-titanium-zirconium alloy workpiece from the polishing tank, cleaning the reacted molybdenum-titanium-zirconium alloy workpiece with deionized water, and drying it to obtain the polished molybdenum-titanium-zirconium alloy workpiece.

7. The polishing method for molybdenum-titanium-zirconium alloy workpieces according to claim 2, characterized in that: The titanium content in the molybdenum-titanium-zirconium alloy workpiece is 0.4-0.7%; the zirconium content is 0.06-0.12%.

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