阅读说明：本技术 一种高Mo含量Ti-Mo合金真空自耗电极棒的压制方法 (Pressing method of Ti-Mo alloy vacuum consumable electrode bar with high Mo content ) 是由 李�荣 解炜 李媛媛 魏东 张旭 党晨凯 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种高Mo含量Ti-Mo合金真空自耗电极棒的制备方法,该方法包括：一、将低Mo含量Ti-Mo中间合金碎屑、海绵钛颗粒与Mo颗粒分别烘干；二、将低Mo含量Ti-Mo中间合金碎屑与1/4质量的海绵钛颗粒混合形成混合料；三、将混合料与剩余海绵钛颗粒、Mo颗粒布料得自耗布料块；四、压制得自耗电极块；五、焊接得高Mo含量Ti-Mo合金真空自耗电极棒。本发明采用低Mo含量Ti-Mo中间合金碎屑和Mo颗粒为钼原料,结合控制布料方式,使得低Mo含量Ti-Mo中间合金碎屑被海绵钛颗粒包裹,避免了熔炼中掉渣及起边弧现象,制备的高Mo含量Ti-Mo合金铸锭合金成分均匀,且无Mo元素偏析及高密度夹杂。(The invention discloses a preparation method of a Ti-Mo alloy vacuum consumable electrode bar with high Mo content, which comprises the following steps: firstly, respectively drying Ti-Mo intermediate alloy scraps with low Mo content, titanium sponge particles and Mo particles; secondly, mixing the Ti-Mo intermediate alloy scraps with low Mo content with 1/4-mass sponge titanium particles to form a mixture; thirdly, distributing the mixture, the residual titanium sponge particles and the Mo particles from a material consumption block; fourthly, pressing the self-consuming electrode block; and fifthly, welding to obtain the Ti-Mo alloy vacuum consumable electrode bar with high Mo content. According to the invention, the low-Mo-content Ti-Mo intermediate alloy scraps and Mo particles are adopted as molybdenum raw materials, and a material distribution control mode is combined, so that the low-Mo-content Ti-Mo intermediate alloy scraps are wrapped by the sponge titanium particles, the phenomena of slag falling and edge arcing in smelting are avoided, and the prepared high-Mo-content Ti-Mo alloy ingot casting alloy has uniform components and is free of Mo element segregation and high-density impurities.)

1. A preparation method of a Ti-Mo alloy vacuum consumable electrode rod with high Mo content is characterized by comprising the following steps:

step one, respectively drying Ti-Mo intermediate alloy scraps with low Mo content, titanium sponge particles and Mo particles; the mass content of Mo in the low-Mo-content Ti-Mo intermediate alloy scraps is not more than 10%;

step two, mixing the dried Ti-Mo intermediate alloy scraps with low Mo content in the step one with 1/4 mass of dried sponge titanium particles to form a mixture;

step three, distributing the mixture obtained in the step two, the residual dried sponge titanium particles and the dried Mo particles to obtain a consumable distributing block;

the cloth mode is as follows: firstly, flatly paving 1/4-mass dried titanium sponge particles at the bottom of a pressing die (1) to form a titanium sponge bottom layer, sleeving an outer partition frame (2) and an inner partition frame (3) and horizontally placing the titanium sponge bottom layer, then laying a mixture in a nesting gap between the outer partition frame (2) and the inner partition frame (3), laying the dried Mo particles in the inner partition frame (3), wherein the laying height of the mixture is greater than that of the dried Mo particles, uniformly laying 1/4-mass dried titanium sponge particles in a gap between the outer partition frame (2) and the pressing mold (1) to form a titanium sponge interlayer, the height of the titanium sponge interlayer is greater than the laying height of the mixture, the outer partition frame (2) and the inner partition frame (3) are taken out, and dried titanium sponge particles with the residual 1/4 mass are flatly laid on the upper layer;

step four, pressing the consumable cloth block obtained in the step three to obtain a consumable electrode block;

step five, placing the consumable electrode block obtained in the step four into a vacuum consumable electric arc furnace for welding to obtain a Ti-Mo alloy vacuum consumable electrode bar with high Mo content; the mass content of Mo in the high-Mo-content Ti-Mo alloy vacuum consumable electrode rod is not less than 35%.

2. The method for preparing the high-Mo-content Ti-Mo alloy vacuum consumable electrode rod as claimed in claim 1, wherein in the step one, the low-Mo-content Ti-Mo intermediate alloy scraps are produced by turning the low-Mo-content Ti-Mo alloy scraps, and the grain size of the low-Mo-content Ti-Mo intermediate alloy scraps is not more than 5 mm; the titanium sponge particles are industrial grade AA or above, and the particle size of the titanium sponge particles is not more than 5 mm; the particle size of the Mo particles is not more than 5 mm; the drying process comprises the following steps: respectively paving Ti-Mo intermediate alloy scraps with low Mo content, titanium sponge particles and Mo particles in an oven, wherein the paving thickness is not more than 100m, and then preserving heat for 4-8 h at 150-250 ℃.

3. The method for preparing the Ti-Mo alloy vacuum consumable electrode bar with high Mo content according to claim 1, wherein the mixing time in the second step is 6-15 min.

4. The method for preparing the Ti-Mo alloy vacuum consumable electrode rod with high Mo content according to claim 1, characterized in that the cross sections of the outer partition frame (2) and the inner partition frame (3) in the third step are circular or polygonal, and the outer partition frame (2) is communicated with the upper surface and the lower surface of the inner partition frame (3).

5. The method for preparing the Ti-Mo alloy vacuum consumable electrode bar with high Mo content according to claim 1, wherein the pressing in the first step is performed by an oil press.

6. The method for preparing the Ti-Mo alloy vacuum consumable electrode bar with high Mo content according to claim 1, wherein in the fifth step, the welding is performed by vacuum plasma arc welding, and the arc starting material is titanium.

Technical Field

The invention belongs to the technical field of titanium alloy metallurgy, and particularly relates to a pressing method of a Ti-Mo alloy vacuum consumable electrode rod with high Mo content.

Background

The titanium alloy has a series of advantages of high specific strength, good corrosion resistance, good biocompatibility and the like, and is widely applied to the fields of aviation, aerospace, weapons, medical treatment and the like. At present, vacuum consumable melting is one of the most important melting modes of titanium alloy, and titanium alloy ingot casting is melted through a plurality of groups of electrode blocks. Mo element is an important isomorphous beta stable element of titanium alloy, and in general, the Mo element of the titanium alloy is added in an intermediate alloy mode such as Al-Mo and the like, so that the Al-Mo intermediate alloy can greatly reduce the melting point of the Mo alloy and reduce the risk of Mo element segregation and high-density inclusion generation during smelting. For the Ti-Mo binary alloy with high Mo content, no other alloy elements exist, and the Mo element is mainly added into the alloy in a pure Mo form. At present, titanium alloy vacuum consumable electrodes are mainly pressed in an alloy bag or mixed material distribution mode, Ti-Mo binary alloy can only be pressed in a mixed material distribution mode, pure Mo belongs to refractory metal and has a larger difference with a melting point of sponge titanium, slag falling and side arc starting phenomena can occur in a smelting process, and even explosion occurs, so that the adding mode and the mixed material distribution mode of Mo in the titanium alloy vacuum consumable electrodes have important influence on ingot smelting and uniformity, and improvement is needed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a pressing method of a Ti-Mo alloy vacuum consumable electrode rod with high Mo content aiming at the defects of the prior art. According to the method, the Ti-Mo intermediate alloy scraps with low Mo content and Mo particles are used as a Mo element source, and a material distribution control mode is combined, so that the Ti-Mo intermediate alloy scraps with low Mo content are completely and uniformly wrapped by the sponge titanium particles, the phenomena of slag falling and edge arcing caused by large differences of melting points of Mo, the Ti-Mo intermediate alloy scraps and the sponge titanium in the subsequent smelting process are avoided, and finally prepared Ti-Mo alloy ingot casting with high Mo content has uniform components and small fluctuation, and is free of Mo element segregation and high-density inclusion.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a preparation method of a Ti-Mo alloy vacuum consumable electrode rod with high Mo content is characterized by comprising the following steps:

step one, respectively drying Ti-Mo intermediate alloy scraps with low Mo content, titanium sponge particles and Mo particles; the mass content of Mo in the low-Mo-content Ti-Mo intermediate alloy scraps is not more than 10%;

step two, mixing the dried Ti-Mo intermediate alloy scraps with low Mo content in the step one with 1/4 mass of dried sponge titanium particles to form a mixture;

step three, distributing the mixture obtained in the step two, the residual dried sponge titanium particles and the dried Mo particles to obtain a consumable distributing block;

the cloth mode is as follows: firstly, flatly paving 1/4-mass dried titanium sponge particles at the bottom of a pressing mold to form a titanium sponge bottom layer, sleeving an outer partition frame and an inner partition frame, horizontally placing the outer partition frame and the inner partition frame on the titanium sponge bottom layer, then paving a mixture in a sleeving gap between the outer partition frame and the inner partition frame, paving dried Mo particles in the inner partition frame, wherein the paving height of the mixture is greater than that of the dried Mo particles, uniformly paving 1/4-mass dried titanium sponge particles in a gap between the outer partition frame and the pressing mold to form a titanium sponge interlayer, wherein the height of the titanium sponge interlayer is greater than that of the mixture, taking out the outer partition frame and the inner partition frame, and flatly paving dried titanium sponge particles with the residual 1/4-mass on the upper layer;

step four, pressing the consumable cloth block obtained in the step three to obtain a consumable electrode block;

step five, placing the consumable electrode block obtained in the step four into a vacuum consumable electric arc furnace for welding to obtain a Ti-Mo alloy vacuum consumable electrode bar with high Mo content; the mass content of Mo in the high-Mo-content Ti-Mo alloy vacuum consumable electrode rod is not less than 35%.

The method adopts Ti-Mo intermediate alloy scraps with low Mo content and Mo particles as a source of Mo element, firstly mixes the dried Ti-Mo intermediate alloy scraps with partial dried sponge titanium particles to form a mixed material, then distributes the mixed material with the residual dried sponge titanium particles and the dried Mo particles to obtain a self-consuming distribution block, firstly lays and forms a sponge titanium bottom layer at the bottom of a pressing mold by controlling a distribution mode, namely lays the mixed material in a nesting gap between an outer partition frame and an inner partition frame, lays the dried Mo particles in the inner partition frame, lays and forms a sponge interlayer in the gap between the outer partition frame and the pressing mold, and ensures that the content of the Mo element is ensured along the inner partition frame, the dried Mo particles and the sponge titanium interlayer by controlling the laying height of the mixed material to be greater than that of the dried Mo particles and the laying height of the sponge titanium interlayer to be greater than that of the mixed material is laid, The directions of the outer partition frame and the pressing die are gradually reduced, and the dried sponge titanium particles finally paved on the upper layer are combined, so that the dried Mo particles and the low-Mo-content Ti-Mo intermediate alloy scraps in the mixture are completely and uniformly wrapped by the sponge titanium particles, the risks of explosion and the like caused by the fact that the Ti-Mo intermediate alloy scraps are exposed in the smelting process are avoided, the phenomena of slag falling, side arc starting and the like caused by large difference of melting points of Mo and Ti-Mo intermediate alloy scraps and sponge titanium in the subsequent smelting process are effectively avoided, the distribution uniformity of Mo is further improved, the full melting of the Mo element in the subsequent smelting process is promoted and is fully and uniformly mixed with the molten sponge titanium, the segregation and high-density inclusion of the Mo element are avoided, the preparation of the Ti-Mo alloy with high-content Mo metal is realized, and the finally prepared Ti-Mo-content Ti-Mo alloy ingot casting alloy with high-content Mo is uniform in component, The fluctuation is small, Mo element segregation and high-density impurities do not exist, and the requirements of vacuum consumable electrodes for industrial production of high-Mo-content Ti-Mo alloy homogeneous ingots are met.

The preparation method of the high-Mo-content Ti-Mo alloy vacuum consumable electrode rod is characterized in that in the step one, the low-Mo-content Ti-Mo intermediate alloy scraps are produced by turning the low-Mo-content Ti-Mo alloy scraps, and the particle size of the low-Mo-content Ti-Mo intermediate alloy scraps is not more than 5 mm; the titanium sponge particles are industrial grade AA or above, and the particle size of the titanium sponge particles is not more than 5 mm; the particle size of the Mo particles is not more than 5 mm; the drying process comprises the following steps: respectively paving Ti-Mo intermediate alloy scraps with low Mo content, titanium sponge particles and Mo particles in an oven, wherein the paving thickness is not more than 100m, and then preserving heat for 4-8 h at 150-250 ℃. According to the method, the source and the granularity of the raw material Ti-Mo intermediate alloy scraps with low Mo content, the granularity and the grade of sponge titanium particles and the granularity of Mo particles are controlled, so that the laying of all the raw materials in a material distribution mode is favorably controlled, the accurate distribution of Mo in a consumable material distribution block is controlled, the uniform distribution of Mo in the high Mo content Ti-Mo alloy homogeneous ingot obtained by subsequent smelting is further ensured, the cost of the low Mo content Ti-Mo intermediate alloy scraps is low, the low Mo content Ti-Mo intermediate alloy scraps are easy to obtain, and the raw material cost is reduced; the optimized drying process effectively avoids introducing water vapor and oxygen in the air into the ingot, and reduces the content of impurity elements in the high-Mo-content Ti-Mo alloy homogeneous ingot obtained by subsequent smelting

The preparation method of the Ti-Mo alloy vacuum consumable electrode rod with the high Mo content is characterized in that the mixing time in the step two is 6-15 min. The optimal mixing time ensures that all materials in the mixture are fully mixed, and is favorable for controlling the distribution of Mo element in the consumable cloth block.

The preparation method of the Ti-Mo alloy vacuum consumable electrode rod with the high Mo content is characterized in that the cross sections of the outer partition frame and the inner partition frame in the step three are circular or polygonal, and the outer partition frame is communicated with the upper surface and the lower surface of the inner partition frame. The outer partition frame and the inner partition frame have various shapes and wide application range; the upper surface and the lower surface of the outer partition frame and the inner partition frame are controlled to be communicated, so that materials are conveniently and sequentially laid in the nesting gap between the outer partition frame and the inner partition frame, the gap between the outer partition frame and the pressing die, the dried Mo particles and the low-Mo-content Ti-Mo intermediate alloy scraps in the mixture are completely and uniformly wrapped by the titanium sponge particles, and the outer partition frame and the inner partition frame are convenient to take out.

The preparation method of the Ti-Mo alloy vacuum consumable electrode rod with the high Mo content is characterized in that in the step one, the pressing is carried out by using an oil press. The invention selects the tonnage of the oil press according to the weight of the consumable cloth block, and has convenient pressing and easy realization.

The preparation method of the Ti-Mo alloy vacuum consumable electrode rod with the high Mo content is characterized in that in the fifth step, the welding adopts vacuum plasma arc welding for assembly welding, and the arc starting material for welding is titanium. According to the invention, the vacuum plasma arc welding is adopted for electrode assembly welding, and titanium is adopted as an arc starting material, so that other impurity elements are not introduced while the welding effect is ensured, and the content of O, H impurity elements in the high-Mo-content Ti-Mo alloy homogeneous ingot obtained by subsequent smelting is further reduced.

Compared with the prior art, the invention has the following advantages:

1. according to the method, the Ti-Mo intermediate alloy scraps with low Mo content and Mo particles are used as a Mo element source, and a material distribution control mode is combined, so that the Ti-Mo intermediate alloy scraps with low Mo content are completely and uniformly wrapped by the sponge titanium particles, the phenomena of slag falling and edge arcing caused by large differences of melting points of Mo, the Ti-Mo intermediate alloy scraps and the sponge titanium in the subsequent smelting process are avoided, the finally prepared Ti-Mo alloy ingot with high Mo content has uniform components and small fluctuation, Mo element segregation and high-density inclusion do not exist, and the requirement of vacuum consumable electrodes for industrial production of high Mo content Ti-Mo alloy homogeneous ingots is met.

2. According to the invention, by controlling the granularity and the source of the three raw materials, the accurate distribution of the Mo element in the consumable material block is effectively controlled, the uniform distribution of the Mo element in the Ti-Mo alloy homogeneous ingot with high Mo content obtained by subsequent smelting is ensured, and the raw material cost of the Ti-Mo intermediate alloy scrap raw material with low Mo content is reduced.

3. According to the invention, the vacuum plasma arc welding is adopted for electrode assembly welding, and titanium is adopted as an arc starting material, so that other impurity elements are not introduced while the welding effect is ensured, and the content of O, H impurity elements in the high-Mo-content Ti-Mo alloy homogeneous ingot obtained by subsequent smelting is further reduced.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic view of the cloth pattern in examples 1 to 2 of the present invention.

Fig. 2 is a schematic diagram of a sleeving structure of the outer partition frame and the inner partition frame in fig. 1.

Description of reference numerals:

1-pressing a mould; 2-outer spacer frame; 3-inner bulkhead.

Detailed Description

Example 1

The embodiment comprises the following steps:

firstly, flatly paving Ti-10Mo intermediate alloy scraps, titanium sponge particles and Mo particles in an oven respectively, wherein the thickness of the flatly paved intermediate alloy scraps, the titanium sponge particles and the Mo particles is not more than 80mm, and then, keeping the temperature at 200 ℃ for 4 hours and drying; the mass content of Mo in the Ti-10Mo intermediate alloy scraps is 10%; the Ti-10Mo intermediate alloy chips are produced by turning Ti-10Mo alloy chips, and the granularity is not more than 5 mm; the titanium sponge particles are industrial grade AA or above, and the particle size of the titanium sponge particles is not more than 5 mm; the particle size of the Mo particles is not more than 5 mm;

step two, mixing 10kg of the dried Ti-10Mo intermediate alloy scraps in the step one with 2.625kg of dried sponge titanium particles for 6min to form a mixture;

step three, distributing 12.625kg of the mixture obtained in the step two, 7.875kg of dried titanium sponge particles and 9.5kg of dried Mo particles to obtain a consumable distributing block; as shown in fig. 1 and 2, the cloth mode is as follows: firstly, flatly paving 2.625kg of dried sponge titanium particles at the bottom of a pressing mold 1 to form a sponge titanium bottom layer, sleeving an outer partition frame 2 and an inner partition frame 3, horizontally placing the outer partition frame and the inner partition frame on the sponge titanium bottom layer, then paving 12.625kg of mixed material in a sleeving gap between the outer partition frame 2 and the inner partition frame 3, paving 9.5kg of dried Mo particles in the inner partition frame 3, wherein the paving height of the mixed material is greater than that of the dried Mo particles, uniformly paving 2.625kg of dried sponge titanium particles in a gap between the outer partition frame 2 and the pressing mold 1 to form a sponge titanium interlayer, wherein the height of the sponge titanium interlayer is greater than that of the mixed material, taking out the outer partition frame 2 and the inner partition frame 3, and flatly paving the rest 2.625kg of dried sponge titanium particles on the upper layer; the cross sections of the outer partition frame 2 and the inner partition frame 3 are rectangular, and the upper surface and the lower surface of the outer partition frame 2 and the inner partition frame 3 are communicated;

step four, pressing the consumable cloth block obtained in the step three by adopting a 6000t oil press to obtain a consumable electrode block;

placing the consumable electrode blocks obtained in the fourth step into a vacuum consumable electric arc furnace, and performing assembly welding by adopting vacuum plasma arc welding on each 8 consumable electrode blocks, wherein the arc striking material of the assembly welding is titanium, so as to obtain a Ti-35Mo alloy vacuum consumable electrode rod; the mass content of Mo in the Ti-35Mo alloy vacuum consumable electrode rod is 35%.

Example 2

The embodiment comprises the following steps:

firstly, flatly paving Ti-10Mo intermediate alloy scraps, titanium sponge particles and Mo particles in an oven respectively, wherein the thickness of the flatly paved Ti-10Mo intermediate alloy scraps, the thickness of the titanium sponge particles and the thickness of the Mo particles are not more than 100mm, and then, keeping the temperature at 150 ℃ for 8 hours and drying; the mass content of Mo in the Ti-10Mo intermediate alloy scraps is 10%; the Ti-10Mo intermediate alloy chips are produced by turning Ti-10Mo alloy chips, and the granularity is not more than 5 mm; the titanium sponge particles are industrial grade AA or above, and the particle size of the titanium sponge particles is not more than 5 mm; the particle size of the Mo particles is not more than 5 mm;

step two, mixing 10kg of the dried Ti-10Mo intermediate alloy scraps in the step one with 3.75kg of dried sponge titanium particles for 15min to form a mixture;

step three, distributing 13.75kg of the mixture obtained in the step two, 11.25kg of dried sponge titanium particles and 15kg of dried Mo particles to obtain a consumable distributing block; as shown in fig. 1 and 2, the cloth mode is as follows: firstly, flatly paving 3.75kg of dried sponge titanium particles at the bottom of a pressing mold 1 to form a sponge titanium bottom layer, sleeving an outer partition frame 2 and an inner partition frame 3, horizontally placing the outer partition frame and the inner partition frame on the sponge titanium bottom layer, then paving 13.75kg of mixed material in a sleeving gap between the outer partition frame 2 and the inner partition frame 3, paving 15kg of dried Mo particles in the inner partition frame 3, wherein the paving height of the mixed material is greater than that of the dried Mo particles, uniformly paving 3.75kg of dried sponge titanium particles in a gap between the outer partition frame 2 and the pressing mold 1 to form a sponge titanium interlayer, wherein the height of the sponge titanium interlayer is greater than that of the mixed material, taking out the outer partition frame 2 and the inner partition frame 3, and flatly paving the rest 3.75kg of dried sponge titanium particles on the upper layer; the cross sections of the outer partition frame 2 and the inner partition frame 3 are circular, and the upper surface and the lower surface of the outer partition frame 2 and the inner partition frame 3 are communicated;

step four, pressing the consumable cloth block obtained in the step three by adopting a 6000t oil press to obtain a consumable electrode block;

placing the consumable electrode blocks obtained in the fourth step into a vacuum consumable electric arc furnace, and performing assembly welding by adopting vacuum plasma arc welding on each 8 consumable electrode blocks, wherein the arc striking material of the assembly welding is titanium, so as to obtain a Ti-40Mo alloy vacuum consumable electrode rod; the mass content of Mo in the Ti-40Mo alloy vacuum consumable electrode rod is 40%.

Example 3

The embodiment comprises the following steps:

firstly, flatly paving Ti-8Mo intermediate alloy scraps, titanium sponge particles and Mo particles in an oven respectively, wherein the thickness of the flatly paved Ti-8Mo intermediate alloy scraps, the thickness of the titanium sponge particles and the thickness of the Mo particles are not more than 100mm, and then, keeping the temperature at 250 ℃ for 4 hours and drying; the mass content of Mo in the Ti-8Mo intermediate alloy scraps is 8%; the Ti-8Mo intermediate alloy chips are produced by turning Ti-8Mo alloy chips, and the granularity is not more than 5 mm; the titanium sponge particles are industrial grade AA or above, and the particle size of the titanium sponge particles is not more than 5 mm; the particle size of the Mo particles is not more than 5 mm;

step two, mixing 15kg of the dried Ti-8Mo intermediate alloy scraps in the step one with 2.75kg of dried sponge titanium particles for 10min to form a mixture;

step three, distributing 17.75kg of the mixture obtained in the step two, 8.25kg of dried sponge titanium particles and 14kg of dried Mo particles to obtain a consumable distributing block; as shown in fig. 1 and 2, the cloth mode is as follows: firstly, flatly paving 2.75kg of dried sponge titanium particles at the bottom of a pressing mold 1 to form a sponge titanium bottom layer, sleeving an outer partition frame 2 and an inner partition frame 3, horizontally placing the outer partition frame and the inner partition frame on the sponge titanium bottom layer, then paving 17.75kg of mixed material in a sleeving gap between the outer partition frame 2 and the inner partition frame 3, paving 14kg of dried Mo particles in the inner partition frame 3, wherein the paving height of the mixed material is greater than that of the dried Mo particles, uniformly paving 2.75kg of dried sponge titanium particles in a gap between the outer partition frame 2 and the pressing mold 1 to form a sponge titanium interlayer, wherein the height of the sponge titanium interlayer is greater than that of the mixed material, taking out the outer partition frame 2 and the inner partition frame 3, and flatly paving the rest 2.75kg of dried sponge titanium particles on the upper layer; the cross sections of the outer partition frame 2 and the inner partition frame 3 are polygonal, and the upper surface and the lower surface of the outer partition frame 2 and the inner partition frame 3 are communicated;

step four, pressing the consumable cloth block obtained in the step three by adopting a 6000t oil press to obtain a consumable electrode block;

placing the consumable electrode blocks obtained in the fourth step into a vacuum consumable electric arc furnace, and performing assembly welding by adopting vacuum plasma arc welding on each 6 consumable electrode blocks, wherein the arc striking material of the assembly welding is titanium, so as to obtain a Ti-38Mo alloy vacuum consumable electrode rod; the mass content of Mo in the Ti-38Mo alloy vacuum consumable electrode rod is 38%.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.