Titanium alloy large ingot consumable electrode and preparation method thereof

Abstract

The invention relates to the technical field of ingot consumable electrodes, in particular to a titanium alloy large ingot consumable electrode and a preparation method thereof.The ingot consumable electrode comprises an electrode ingot, and the two sides of the electrode ingot are each detachably connected with two clamping and fixing assemblies; the two clamping assemblies located on the same side and the electrode cast ingot are jointly provided with a plurality of rod inserting pieces, the two clamping assemblies located on the same side jointly abut against an inserting abutting piece, and the inserting abutting piece and the two clamping assemblies in the inserting abutting piece are jointly provided with connecting and fixing pieces. The method comprises the steps of burdening, forming and splicing. According to the consumable electrode for the cast ingot, the electrode cast ingot can be fully assembled, the electrode cast ingot can be effectively connected more stably, compared with a traditional consumable electrode for the cast ingot, the electrode cast ingot can be effectively disassembled into a plurality of cast ingot parts and is convenient to replace, and compared with a traditional welding cast ingot, the consumable electrode for the cast ingot can be assembled more quickly; and the loosening condition is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ingot consumable electrodes, in particular to a large titanium alloy ingot consumable electrode and a preparation method thereof. Background Art

[0002] Vacuum consumable melting is a commonly used melting method for titanium and titanium alloys. Due to the characteristics of the vacuum consumable melting process, the alloy raw material acts as a consumable electrode, melting it section by section into a crucible under the action of a strong current. The solution then continuously solidifies from bottom to top in the crystallizer (crucible) to form an ingot. As the liquid metal, in the form of molten droplets, passes through the arc zone and into the crystallizer, where it is held and solidified, a series of physical and chemical reactions occur, refining the metal, improving its crystal structure, and enhancing its performance. Vacuum consumable melting is easy to operate, and multiple remelting steps can produce large ingots with uniform composition.

[0003] To prepare a large ingot of 2-3 tons, the weight of a single electrode block is greater than 100 kg. If it is pressed directly at one time, the unevenness of the mixture will increase, that is, the uniformity of the material distribution will be difficult to ensure. At the same time, the electrode block is large in volume and the pressing density is uneven. The center part is relatively loose because the pressing force cannot be transmitted, and it is easy to fall off during the melting process, causing defects such as uneven material structure and segregation. Therefore, the electrode blocks of large ingots are often pressed in blocks and welded together. The disadvantage of this operation is that there are many welding points. If the welding fails, there is a risk of falling off during the smelting process. At the same time, the work efficiency is also low, especially when the single weight is large, the problem is more prominent.

[0004] A method for preparing a consumable electrode for a large titanium alloy ingot, disclosed in publication number CN107252889B, uses a mold cavity with an auxiliary bracket placed in the mold cavity, which divides the internal space of the mold cavity into N compartments; sponge titanium, industrial pure aluminum, and an intermediate alloy are used as raw materials, and the materials are proportioned and weighed according to the nominal composition of the titanium alloy to be prepared, and the resulting mixed raw materials are poured into the N compartments respectively; the auxiliary bracket is removed from the mold cavity; a short-stroke vertical pressing method is used to press the mixed raw materials in the mold cavity into a large single-weight electrode block at one time; steps 1 to 3 are repeated to obtain multiple large single-weight electrode blocks, and the multiple large single-weight electrode blocks obtained are welded together to form a consumable electrode; the present invention reduces the subsequent welding points of the consumable electrode and reduces the problem of bullet dropping due to poor welding during the smelting process.

[0005] In the above technical solution, the connection and fixation of multiple ingot consumable electrodes cannot be fully realized, which is not conducive to ensuring the firmness of the connection between multiple electrode blocks, making it inconvenient to use. At the same time, how to effectively prepare them is also a difficult problem for consumable electrodes, so improvement is needed. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a consumable electrode for a large titanium alloy ingot and a preparation method thereof.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A titanium alloy large-scale ingot consumable electrode comprises an electrode ingot, both sides of which are detachably connected to two clamping components; The two fixing components and the electrode ingot on the same side are equipped with a plurality of insert rods. The two fixing components on the same side are in common contact with an insert resistance component, and the insert resistance component and the two fixing components therein are equipped with connecting fixing components.

[0008] Compared with the existing technology, the present application can fully realize the assembly of electrode ingots and effectively make the connection of electrode ingots more stable. Compared with traditional ingot consumable electrodes, electrode ingots can be effectively split into multiple ingot parts and are easy to replace. Compared with traditional welded ingots, they can be assembled more quickly and avoid loosening.

[0009] Preferably, the electrode ingot comprises a plurality of ingot parts, the plurality of ingot parts are arranged in sequence, two adjacent ingot parts are in contact with each other, fixing members are fixed on both sides of the ingot parts, an annular groove is provided around the fixing members, a plurality of inserting rods are respectively provided in the plurality of annular grooves, and two T-slots are provided on both sides of one end of the fixing member away from the ingot parts; Two T-shaped slots located in the middle of the two conflicting fixing members are arranged opposite to each other, and an H-shaped plate is passed through the two T-shaped slots, and the H-shaped plate and the inserted conflicting member are detachably connected; The fastening component is arranged in the annular groove through.

[0010] Furthermore, the two T-slots provided through them can be used to insert the H-shaped plates accordingly, and during actual production and preparation, the edges inside the H-shaped plates are provided at an angle, which enables the two ingot parts to move relative to each other more stably, so that the two ingot parts can be in close contact with each other. At the same time, the four clamping components are respectively provided on the two fixing parts, and their thickness is less than the depth of the annular groove, which facilitates the insertion of the clamping plate. Through the insertion of the clamping plate, a close connection of multiple ingot parts can be completed.

[0011] Preferably, a through hole is provided in the annular groove, and the inserted rod is provided through the through hole; The fixing assembly includes a first U-shaped fixing member, and a plurality of through holes are formed on the first U-shaped fixing member at equal intervals; An insert rod is passed through the through hole, and two ends of the insert rod extend into two corresponding through holes respectively, and the insert rod and the insertion interference piece interfere with each other.

[0012] Furthermore, during actual production and preparation, the rod is inserted through the through hole and through the fixing components located on both sides of the fixing component, so that the positional relationship between the fixing component and the ingot component and the fixing component can be stabilized.

[0013] Preferably, the insertion interference member includes a second U-shaped clamping member, a connecting member is fixed to the upper end of the second U-shaped clamping member, an L-shaped interference plate is fixed between the second U-shaped clamping member and the connecting member, a fastening bolt is screwed on the L-shaped interference plate, and one end of the fastening bolt is passed through and arranged on the H-shaped plate; The connecting piece, the fixing assembly and the connecting fixing piece are connected.

[0014] Furthermore, the insertion of the abutment member can achieve clamping of the two fixing components and can effectively connect the two fixing components. Through the connection, the connection and fixation between the multiple ingot components can be further completed.

[0015] Preferably, two clamping plates are provided in the inserted resistance member, the height of the first U-shaped clamping member is smaller than the depth of the annular groove, and the clamping plates are provided through the annular groove.

[0016] Furthermore, the card connection is fully performed.

[0017] Preferably, the fixing assembly is provided with a vertical plate, and the vertical plate is provided with a connecting hole; The two vertical plates are located in the connecting piece on the same side as them; The connecting fixing member includes a connecting screw member, which is arranged through the connecting member and two connecting holes located therein. Both ends of the connecting screw member are penetrated by a gasket member, and the two gasket members respectively abut against the two sides of the connecting member. Both ends of the connecting screw member are threaded with a connecting nut member, and the two connecting nut members respectively abut against the two gasket members.

[0018] Furthermore, the connecting screw member can penetrate the insertion resistance member and the two fixing components, and the annular groove can prevent the fixing components from shaking, so that the inserted resistance member, the fixing components and the connecting fixing member are fully connected and fixed.

[0019] Preferably, the ingot component and the two fixing members are integrally formed.

[0020] Furthermore, the powder is pressed, and the corresponding hydraulic press is selected according to the overall specifications of the ingot parts and fixings to ensure the quality of the pressing.

[0021] The present invention also provides a method for preparing a consumable electrode for a large titanium alloy ingot, which is applicable to the above-mentioned consumable electrode for a large titanium alloy ingot, and comprises the following steps: S1. Ingredients: The staff selects any one of grade 100 and grade 100 titanium sponge, industrial pure aluminum, and master alloy as raw materials, and controls the ratio between the materials and fully mixes the materials; S2, molding: The staff injects the mixed materials into the corresponding mold, and the staff transfers the mold to the hydraulic equipment to extrude it into an ingot; S3. Assembly: The pressed ingots are stacked in order to the required number of layers as needed, and the staff will splice the multiple ingots to ensure that the multiple ingots are firmly connected.

[0022] Compared with the existing technology, the present application can be prepared by a powder pressing scheme. How to ensure that the powder is pressed more firmly is an existing technology and does not need to be disclosed again. In the present application, by fully controlling the raw materials and the corresponding model, it can be pressed into a style of connection between the ingot parts and the fixing parts, and it can fully ensure that the annular grooves, through holes and T-slots can be produced and prepared according to specifications.

[0023] The beneficial effects of the present invention are: 1. Compared with the prior art, the present application adopts a corresponding structure to achieve the sequential mutual interference of multiple ingots, and at the same time, multiple components arranged in the electrode ingot can quickly achieve mutual connection between the components; 2. The present application can realize the connection of two adjacent ingot parts through the action of the H-shaped plate, so that the two ingot parts can be tightly abutted, and the position of the H-shaped plate is fully defined by the action of the fastening bolts; 3. In actual production and preparation, the depth of the annular groove is greater than the thickness of the first U-shaped clamping piece, which facilitates the insertion of the clamping plate into the corresponding annular groove to prevent the ingot parts from shaking at will. At the same time, the insertion of the abutment piece and the H-shaped plate make the connection between the ingot parts more secure. 4. The connecting fixture can connect the inserted resistance member and the clamping assembly, thereby preventing the clamping assembly and the inserted resistance member from being misaligned and ensuring the stability of the connection; 5. Through the action of the inserted rod, there will be no misalignment between the ingot parts and the clamping components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a consumable electrode for a large titanium alloy ingot proposed by the present invention; Figure 2 This is a diagram showing the connection structure of the ingot components and the fixing parts in a large titanium alloy ingot consumable electrode proposed by the present invention; Figure 3 This is a structural diagram of a connecting fixture in a consumable electrode for a large titanium alloy ingot proposed by the present invention; Figure 4This is a structural diagram of a friction piece inserted into a consumable electrode of a large titanium alloy ingot proposed by the present invention; Figure 5 This is a structural diagram of a clamping assembly in a consumable electrode for a large titanium alloy ingot proposed by the present invention; In the figure: 1 electrode ingot, 11 ingot component, 12 fixing part, 13 annular groove, 14 through hole, 15 T-slot, 2 fixing assembly, 21 connecting hole, 22 vertical plate, 23 first U-shaped fixing part, 24 through hole, 3 plug-in rod part, 4 connecting fixing part, 41 connecting nut part, 42 connecting screw part, 43 gasket part, 5 inserting interference part, 51 connecting part, 52 fastening bolt, 53 L-shaped interference plate, 54 second U-shaped fixing part, 55 clamping plate, 6H-type plate part. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-5 A large-scale titanium alloy ingot consumable electrode comprises an electrode ingot 1, and two fixing components 2 are detachably connected on both sides of the electrode ingot 1; the two fixing components 2 on the same side and the electrode ingot 1 are jointly provided with a plurality of plug rods 3, and the two fixing components 2 on the same side are jointly in conflict with an inserting resistance component 5, and the inserting resistance component 5 and the two fixing components 2 therein are jointly installed with a connecting fixing component 4 to realize the connection and fixation of the electrode ingot 1, which can avoid the disadvantage of using a transmission welding method with a more cumbersome process. Through the cooperation between the corresponding components, the firmness of the connection between the multiple ingot components 11 can be fully completed, and the connecting fixing component 4 also facilitates lifting and rotation by the staff.

[0027] In this embodiment, the electrode ingot 1 includes a plurality of ingot parts 11, which are arranged in sequence, and two adjacent ingot parts 11 are in conflict with each other. Fixing members 12 are fixed on both sides of the ingot part 11, and the ingot part 11 and the two fixing members 12 are integrally formed, that is, a powder pressing molding technical solution, that is, the pressing equipment is the existing technology, and the corresponding technical equipment can be selected according to the specifications of the pressing part to ensure the pressing effect. An annular groove 13 is commonly provided around the fixing member 12, and a plurality of inserting rods 3 are respectively arranged in the plurality of annular grooves 13, and two T-slots 15 are provided on both sides of the end of the fixing member 12 away from the ingot part 11; The two T-slots 15 located in the middle of the two conflicting fixing parts 12 are arranged opposite to each other, and an H-shaped plate 6 is commonly provided through the two relatively arranged T-slots 15. The H-shaped plate 6 and the inserted conflicting part 5 are detachably connected. Through the detachable connection between the inserted conflicting part 5 and the H-shaped plate 6, the H-shaped plate 6 can be effectively inserted into the corresponding T-slot 15 to complete the firm connection and tight conflict between the two adjacent ingot parts 11. That is, during preparation, the relative side walls in the H-shaped plate 6 are tilted. This arrangement enables the two relatively continuous T-slots 15 to move relative to each other; the fixing component 2 is arranged through the annular groove 13, and the fixing component 2 is U-shaped, which enables the U-shaped setting to be inserted into the corresponding annular groove 13, and the relative side walls in the fixing component 2 will respectively conflict with the annular grooves 13 at both ends.

[0028] In this embodiment, a through hole 14 is provided in the annular groove 13, and the insert rod 3 is arranged through the through hole 14; the fixing component 2 includes a first U-shaped fixing member 23, and a plurality of through holes 24 are provided on the first U-shaped fixing member 23 at equal intervals; an insert rod 3 is provided through the through hole 14, and the two ends of the insert rod 3 extend into the corresponding two through holes 24 respectively, and the insert rod 3 and the insertion interference member 5 are in conflict with each other. After the insert rod 3 is inserted into the through hole 24, it can conflict with the opposite side wall of the insertion interference member 5, thereby making the connection between the multiple ingot parts 11 more firm.

[0029] In this embodiment, the inserted resistance member 5 includes a second U-shaped clamping member 54, a connecting member 51 is fixed to the upper end of the second U-shaped clamping member 54, an L-shaped resistance plate 53 is fixed between the second U-shaped clamping member 54 and the connecting member 51, a fastening bolt 52 is screwed on the L-shaped resistance plate 53, and one end of the fastening bolt 52 is passed through and set on the H-shaped plate 6; the connecting member 51, the clamping assembly 2 and the connecting fixing member 4 are connected.

[0030] In this embodiment, two clamping plates 55 are provided in the inserted resistance member 5, and the height of the first U-shaped clamping member 23 is less than the depth of the annular groove 13. The clamping plate 55 is arranged throughout the annular groove 13. During actual production and preparation, the depth of the annular groove 13 is equal to the thickness of the clamping component 2 and the thickness of the clamping plate 55. During preparation, the clamping component 2 and the inserted rod member 3 cooperate to ensure stable fixation between the two adjacent ingot parts 11. At the same time, the distance between the two clamping components 2 can be limited by the action of the inserted resistance member 5 to avoid loosening of the distance between the two clamping components 2. In this case, the firmness of the connection between multiple ingot parts 11 can be guaranteed.

[0031] In this embodiment, the fastening assembly 2 is provided with a vertical plate 22, and a connecting hole 21 is opened on the vertical plate 22; The two vertical plates 22 are located in the connecting member 51 on the same side thereof; the connecting fixing member 4 includes a connecting screw member 42, which is arranged through the connecting member 51 and the two connecting holes 21 located therein, and both ends of the connecting screw member 42 are penetrated by a gasket member 43, and the two gasket members 43 respectively abut on the two sides of the connecting member 51, and both ends of the connecting screw member 42 are screwed with a connecting nut member 41, and the two connecting nut members 41 respectively abut on the two gasket members 43; the connecting screw member 42 can be inserted through the interference member 5 and the two fixing components 2, and the annular groove 13 can prevent the fixing component 2 from shaking, so that the inserted interference member 5, the fixing component 2 and the connecting fixing member 4 are fully connected and fixed.

[0032] In this embodiment, a method for preparing a consumable electrode for a large titanium alloy ingot is applicable to the above-mentioned consumable electrode for a large titanium alloy ingot, comprising the following steps: S1. Ingredients: The staff selects any one of grade 0 and grade 1 titanium sponge, industrial pure aluminum, and master alloy as raw materials, and controls the ratio between the materials and fully mixes the materials; S2, molding: The staff injects the mixed materials into the corresponding mold, and the staff transfers the mold to the hydraulic equipment to extrude it into an ingot; S3. Assembly: The pressed ingots are stacked in order to the required number of layers as needed, and the staff will splice the multiple ingots to ensure that the multiple ingots are firmly connected.

[0033] In the present invention, during actual production and preparation, corresponding materials are selected according to needs, and effective crushing and grinding are carried out, and the consistency of grinding quality between multiple materials is ensured, so that the materials are fully mixed evenly, and the materials are added into the mold. During preparation, the through hole 14 may not be processed first, so as to ensure the effect of pressing by the hydraulic press. After the pressing is completed, the through hole 14 is drilled out by the punching equipment, and trimming is performed at the same time. The multiple ingot parts 11 are fully connected through the action of the clamping assembly 2, the inserted rod part 3, the connecting fixing part 4, the inserted resistance part 5 and the H-shaped plate part 6 for use.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A titanium alloy large ingot consumable electrode, comprising an electrode ingot (1), characterized in that: Two fixing components (2) are detachably connected to both sides of the electrode ingot (1); The two fixing assemblies (2) and the electrode ingot (1) located on the same side are jointly provided with a plurality of insert rod members (3); the two fixing assemblies (2) located on the same side are jointly abutted with an insert abutting member (5); and the insert abutting member (5) and the two fixing assemblies (2) therein are jointly provided with a connecting fixing member (4).

2. The consumable electrode for large titanium alloy ingots according to claim 1, characterized in that: The electrode ingot (1) comprises a plurality of ingot parts (11), the plurality of ingot parts (11) are arranged in sequence, two adjacent ingot parts (11) are in contact with each other, fixing members (12) are fixed on both sides of the ingot parts (11), an annular groove (13) is provided around the fixing members (12), a plurality of inserting rods (3) are respectively provided in the plurality of annular grooves (13), and two T-shaped grooves (15) are provided on both sides of one end of the fixing member (12) away from the ingot parts (11); Two T-shaped slots (15) located in the middle of the two conflicting fixing members (12) are arranged opposite to each other, and an H-shaped plate (6) is provided through the two T-shaped slots (15) arranged opposite to each other, and the H-shaped plate (6) and the inserted conflicting member (5) are detachably connected; The fastening component (2) is arranged to penetrate into the annular groove (13).

3. The consumable electrode for large titanium alloy ingots according to claim 2, characterized in that: A through hole (14) is provided in the annular groove (13), and the inserting rod (3) is arranged to pass through the through hole (14); The fastening assembly (2) comprises a first U-shaped fastening member (23), and a plurality of through holes (24) are formed on the first U-shaped fastening member (23) at equal intervals. An insert rod member (3) is provided through the through hole (14), and two ends of the insert rod member (3) extend into two corresponding through holes (24) respectively, and the insert rod member (3) and the insertion abutment member (5) abut against each other.

4. The consumable electrode for large titanium alloy ingots according to claim 3, characterized in that: The inserted resistance member (5) includes a second U-shaped clamping member (54), a connecting member (51) is fixed to the upper end of the second U-shaped clamping member (54), an L-shaped resistance plate (53) is fixed between the second U-shaped clamping member (54) and the connecting member (51), a fastening bolt (52) is screwed on the L-shaped resistance plate (53), and one end of the fastening bolt (52) is provided through the H-shaped plate (6); The connecting piece (51), the fixing assembly (2) and the connecting fixing piece (4) are connected.

5. The consumable electrode for large titanium alloy ingots according to claim 4, characterized in that: Two clamping plates (55) are provided in the insertion resistance member (5), the height of the first U-shaped clamping member (23) is smaller than the depth of the annular groove (13), and the clamping plates (55) are provided through the annular groove (13).

6. The consumable electrode for large titanium alloy ingots according to claim 5, characterized in that: The fastening assembly (2) is provided with a vertical plate (22), and the vertical plate (22) is provided with a connecting hole (21); The two vertical plates (22) are located in the connecting member (51) on the same side thereof; The connecting fixing member (4) comprises a connecting screw member (42), the connecting screw member (42) being provided through the connecting member (51) and two connecting holes (21) located therein, both ends of the connecting screw member (42) being provided with gasket members (43), the two gasket members (43) respectively abutting against the two sides of the connecting member (51), and both ends of the connecting screw member (42) being screwed with connecting nut members (41), the two connecting nut members (41) respectively abutting against the two gasket members (43).

7. The consumable electrode for large titanium alloy ingots according to claim 6, characterized in that: The ingot component (11) and the two fixing components (12) are integrally formed.

8. A method for preparing a consumable electrode for a large titanium alloy ingot, applicable to the consumable electrode for a large titanium alloy ingot according to claim 7, characterized in that: The following steps are involved: S1. Ingredients: The staff selects any one of grade 0 and grade 1 titanium sponge, industrial pure aluminum, and master alloy as raw materials, and controls the ratio between the materials and fully mixes the materials; S2, molding: The staff injects the mixed materials into the corresponding mold, and the staff transfers the mold to the hydraulic equipment to extrude it into an ingot; S3. Assembly: The pressed ingots are stacked in order to the required number of layers as needed, and the staff will splice the multiple ingots to ensure that the multiple ingots are firmly connected.

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