Feeding device for electron beam cold bed furnace

Abstract

The utility model discloses a feeding device for an electron beam cold bed furnace, and relates to the technical field of titanium alloy. When electron beam cold bed smelting is carried out, a material pushing rod of the electron beam cold bed furnace pushes a material pushing plate of the feeding device, the material pushing plate pushes the first titanium and titanium alloy residual waste materials to move towards the smelting chamber, and therefore the first titanium and titanium alloy residual waste materials can be heated and smelted through an electron gun. Due to the fact that the first titanium and titanium alloy residual waste materials are isolated from the side wall and the bottom wall of the feeding groove through the bottom plate and the two protection plates, the first titanium and titanium alloy residual waste materials cannot abut against welding seams, the side wall and the bottom wall on the two sides of the feeding groove in the material pushing process of the material pushing rod, and then the first titanium and titanium alloy residual waste materials are clamped. And it is ensured that the first titanium and titanium alloy residual waste is smoothly pushed into the smelting chamber to be smelted through the feeding device. Due to the fact that the feeding device is composed of the second titanium and the titanium alloy residual waste materials, recycling of the second titanium and the titanium alloy residual waste materials is achieved, and the first titanium and the titanium alloy residual waste materials are prevented from being clamped in the material pushing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to titanium alloy technical field especially relates to a feeding device for electron beam cold bed furnace. BACKGROUND

[0002] In the production and processing field of titanium and titanium alloy materials, the electron beam cold bed furnace smelting technology is widely used because it can effectively utilize the scrap materials, realize the recycling of scrap materials and reduce the production cost of titanium and titanium alloy materials. When the electron beam cold bed furnace is smelting, the titanium and titanium alloy scrap materials are loaded into the feeding grooves on both sides, the feeding rod pushes the titanium and titanium alloy scrap materials in the feeding groove to move towards the smelting chamber, the electron gun heats and smelts the titanium and titanium alloy scrap materials, and finally titanium and titanium alloy ingots are prepared.

[0003] In the prior art, the titanium and titanium alloy scrap materials have different shapes, such as block, strip and rod, and during the pushing process of the titanium and titanium alloy scrap materials by the feeding rod, the titanium and titanium alloy scrap materials often abut against the side wall and the weld of the feeding groove, so that the titanium and titanium alloy scrap materials are stuck and cannot move towards the smelting chamber, causing the smelting to be interrupted and affecting the production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model provides a feeding device for electron beam cold bed furnace to solve the problem that the titanium and titanium alloy scrap materials are stuck during the smelting process of the electron beam cold bed towards the smelting chamber.

[0005] The utility model provides a feeding device for electron beam cold bed furnace, which comprises:

[0006] The feeding plate is used for abutting against the first titanium and titanium alloy scrap material to push the first titanium and titanium alloy scrap material to move towards the smelting chamber of the electron beam cold bed furnace;

[0007] The bottom plate is connected with the feeding plate, and the bottom plate is used for supporting the first titanium and titanium alloy scrap material;

[0008] Two guard plates are connected with the two sides of the bottom plate one by one, the guard plate is located between the first titanium and titanium alloy scrap material and the feeding groove side wall of the electron beam cold bed furnace, and the guard plate is used for isolating the first titanium and titanium alloy scrap material from the feeding groove side wall; the feeding plate, the bottom plate and the two guard plates form a loading space, and the loading space is used for accommodating the first titanium and titanium alloy scrap material; the feeding plate, the bottom plate and the guard plate are all composed of second titanium and titanium alloy scrap materials.

[0009] According to the feeding device for the electron beam cold bed furnace provided by the utility model, the guard plate is also connected with the feeding plate.

[0010] The connecting part of the bottom plate and the pushing plate, and the connecting part of the guard plate and the bottom plate are provided with argon arc welding seams.

[0011] The guard plate and the bottom plate are provided with first reinforcing ribs on the side facing the first titanium and titanium alloy scrap material, the guard plate and the pushing plate are provided with second reinforcing ribs on the side facing the first titanium and titanium alloy scrap material, and the bottom plate and the pushing plate are provided with third reinforcing ribs on the side facing the first titanium and titanium alloy scrap material.

[0012] The bottom plate is provided with a first protruding part on the side facing the first titanium and titanium alloy scrap material, and the first protruding part is used for limiting and fixing the first titanium and titanium alloy scrap material.

[0013] The guard plate is provided with a second protruding part on the side facing the first titanium and titanium alloy scrap material, and the second protruding part is used for limiting and fixing the first titanium and titanium alloy scrap material.

[0014] The pushing plate has a length of 790-795 mm and a width of 500-600 mm.

[0015] The bottom plate has a length of 5500-6000 mm and a width of 790-795 mm, and the guard plate has a length of 5500-6000 mm and a width of 100-200 mm.

[0016] The guard plate comprises a plurality of first guard plates, and the plurality of first guard plates are sequentially connected along the feeding direction of the electron beam cold bed furnace, and the length of the first guard plate ranges from 500 mm to 1000 mm.

[0017] The thickness of the pushing plate, the guard plate and the bottom plate is 3-10 mm.

[0018] Compared with the prior art, the utility model has the advantages of:

[0019] The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model, when the electron beam cold hearth smelting is carried out, the feeding device is placed in the feeding groove of the electron beam cold hearth furnace, the first titanium and titanium alloy scrap is placed in the loading space formed by the pushing plate, the bottom plate and the two guard plates. The pushing rod of the electron beam cold hearth furnace moves the first titanium and titanium alloy scrap towards the smelting chamber by pushing the pushing plate, so that the electron gun heats and smelts the first titanium and titanium alloy scrap. Because the bottom plate and the two guard plates isolate the first titanium and titanium alloy scrap from the side wall and the bottom wall of the feeding groove, the first titanium and titanium alloy scrap does not abut against the welds, the side wall and the bottom wall on both sides of the feeding groove in the pushing process of the pushing rod, and is not stuck. The feeding device ensures that the first titanium and titanium alloy scrap is smoothly pushed into the smelting chamber and melted. Because the feeding device is constituted by the second titanium and titanium alloy scrap, the recycling of the second titanium and titanium alloy scrap is realized, and the first titanium and titanium alloy scrap is not stuck in the pushing process, the smelting is not interrupted, and the smelting efficiency of the electron beam cold hearth furnace is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is a perspective structural schematic view;

[0021] Figure 2 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is a front view structural schematic view;

[0022] Figure 3 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is a top view structural schematic view;

[0023] Figure 4 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is a side view structural schematic view;

[0024] Figure 5 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is a perspective structural schematic view;

[0025] Figure 6 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is a top view structural schematic view;

[0026] Figure 7 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is an assembly schematic view of the feeding device and the feeding groove;

[0027] Figure 8 The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model is an assembly schematic view of the feeding device and the feeding groove; Figure 7 The local enlarged view of A in the feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model;

[0028] 100, push plate; 200, base plate; 210, first protruding part; 300, guard plate; 310, first reinforcing rib; 320, second reinforcing rib; 330, third reinforcing rib; 340, second protruding part; 400, feeding groove; 410, welding seam. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0030] Figure 1 A perspective structural schematic view of the feeding device of the electron beam cold bed furnace provided by the embodiments of the present application is shown in the figure, Figure 2 A front view structural schematic view of the feeding device of the electron beam cold bed furnace provided by the embodiments of the present application is shown in the figure, Figure 3 A top view structural schematic view of the feeding device of the electron beam cold bed furnace provided by the embodiments of the present application is shown in the figure, Figure 4 A side view structural schematic view of the feeding device of the electron beam cold bed furnace provided by the embodiments of the present application is shown in the figure, Figures 1 to 4 As shown in the figure, the feeding device for the electron beam cold bed furnace provided by the embodiments of the present application comprises a push plate 100, a base plate 200 and two guard plates 300. The push plate 100 is used to abut against the first titanium and titanium alloy scrap material, so as to push the first titanium and titanium alloy scrap material to move towards the smelting chamber of the electron beam cold bed furnace. The base plate 200 is connected with the push plate 100, and the base plate 200 is used to support the first titanium and titanium alloy scrap material. The two guard plates 300 are connected with the two sides of the base plate 200 one by one, and the guard plate 300 is located between the first titanium and titanium alloy scrap material and the side wall of the feeding groove 400 of the electron beam cold bed furnace, and the guard plate 300 is used to isolate the first titanium and titanium alloy scrap material from the side wall of the feeding groove 400. The push plate 100, the base plate 200 and the two guard plates 300 form a loading space, and the loading space is used to accommodate the first titanium and titanium alloy scrap material. The push plate 100, the base plate 200 and the guard plate 300 are all composed of second titanium and titanium alloy scrap material.

[0031] The feeding device for the electron beam cold hearth furnace provided by the embodiment of the utility model, when the electron beam cold hearth smelting is carried out, the feeding device is placed in the feeding groove 400 of the electron beam cold hearth furnace, the first titanium and titanium alloy scrap is placed in the loading space formed by the pushing plate 100, the bottom plate 200 and the two guard plates 300. The pushing rod of the electron beam cold hearth furnace pushes the pushing plate 100 to push the first titanium and titanium alloy scrap to move towards the smelting chamber, so that the electron gun heats and smelts the first titanium and titanium alloy scrap. Because the bottom plate 200 and the two guard plates 300 isolate the first titanium and titanium alloy scrap from the side wall and the bottom wall of the feeding groove 400, the first titanium and titanium alloy scrap does not abut against the weld 410, the side wall and the bottom wall on both sides of the feeding groove 400 in the pushing process of the pushing rod, and is further stuck. The feeding device ensures that the first titanium and titanium alloy scrap is smoothly pushed into the smelting chamber and melted. Because the feeding device is constituted by the second titanium and titanium alloy scrap, the recycling of the second titanium and titanium alloy scrap is realized, and the first titanium and titanium alloy scrap is prevented from being stuck in the pushing process, so that the smelting is interrupted, and the smelting efficiency of the electron beam cold hearth furnace is improved.

[0032] It should be noted that the first titanium and titanium alloy scrap and the second titanium and titanium alloy scrap have the same chemical composition, and the difference lies in the physical shape. The first titanium and titanium alloy scrap can be in different shapes such as filamentous, rod-shaped, block-shaped and the like, and the second titanium and titanium alloy scrap is in a plate shape. The first titanium and titanium alloy scrap and the second titanium and titanium alloy scrap are simultaneously melted into titanium liquid, and are solidified to be titanium and titanium alloy ingots.

[0033] In the embodiment of the utility model, the guard plate 300 is further connected with the pushing plate 100. Because the guard plate 300 is simultaneously connected with the pushing plate 100 and the bottom plate 200, the structural strength of the feeding device is enhanced, and the feeding device is prevented from being damaged by the pushing force in the pushing process, so that the smelting is interrupted.

[0034] In the embodiment of the utility model, the connecting place of bottom plate 200 and pushing plate 100, the connecting place of guard plate 300 and bottom plate 200 are all provided with argon arc welding seam 410. Bottom plate 200 and pushing plate 100 are connected by argon arc welding, and guard plate 300 and bottom plate 200 are also connected by argon arc welding. By argon protection, oxygen, nitrogen and the like in air can be isolated, so that dense, splash-free, high-quality welding seam is obtained, and the connection is more firm and reliable. Due to the protection of argon, the welding seam metal crystallizes finely, which can effectively improve the mechanical properties of the welding seam, such as strength and toughness, and can better withstand various stresses in the use process. Due to the concentrated arc heat of argon arc welding, the heat affected zone is narrow, which can reduce the size deviation and shape change caused by welding thermal deformation for the connection of bottom plate 200, pushing plate 100 and guard plate 300, and ensure the relative position accuracy of each part of the feeding device and the stability of the overall structure. In addition, argon arc welding can also avoid the introduction of high and low density inclusions due to welding, and improve the ingot quality of electron beam cold hearth melting.

[0035] In the embodiment of the utility model, the side of guard plate 300 and bottom plate 200 facing the first titanium and titanium alloy scrap material is provided with a first reinforcing rib 310, the side of guard plate 300 and pushing plate 100 facing the first titanium and titanium alloy scrap material is provided with a second reinforcing rib 320, and the side of bottom plate 200 and pushing plate 100 facing the first titanium and titanium alloy scrap material is provided with a third reinforcing rib 330. That is, the first reinforcing rib, the second reinforcing rib and the third reinforcing rib are all located on one side of the charging space. By arranging the first reinforcing rib 310, the second reinforcing rib 320 and the third reinforcing rib 330, the stress concentrated at the connecting place of guard plate 300 and bottom plate 200, the connecting place of guard plate 300 and pushing plate 100 and the connecting place of bottom plate 200 and pushing plate 100 is dispersed, the stress concentration in the welding seam is avoided, the cracking risk caused by stress concentration is reduced, and the local strength of the connecting place is enhanced.

[0036] The connection of the first reinforcing rib 310 and the guard plate 300 and the bottom plate 200 can support the welding seam between the guard plate 300 and the bottom plate 200, when the welding seam is subjected to external force, the reinforcing rib can share part of the load, thereby reducing the burden of the welding seam, thereby strengthening the strength of the welding seam connection. When the pushing plate 100 pushes the scrap material, the third reinforcing rib 330 can prevent excessive bending or twisting deformation between the bottom plate 200 and the pushing plate 100, maintain the relative position and shape of the two, and further ensure that the connection strength is not affected by deformation.

[0037] In the embodiment of the utility model, the first protruding part 210 is used for limiting and fixing the first titanium and titanium alloy scrap material. When the pushing rod pushes the first titanium and titanium alloy scrap material to move, the first protruding part 210 can limit and fix the first titanium and titanium alloy scrap material, avoid mutual movement between the first titanium and titanium alloy scrap material and the bottom plate 200, and make the first titanium and titanium alloy scrap material move to the smelting chamber smoothly.

[0038] In the embodiment of the utility model, the surface of the side of the bottom plate 200 facing the first titanium and titanium alloy scrap material is a rough surface. The surface of the side of the bottom plate 200 facing the first titanium and titanium alloy scrap material is shot blasting treated. High-speed pellets are sprayed to the surface of the metal plate, the pellets impact the metal plate, plastic deformation is generated on the surface of the metal plate to form tiny pits, and roughening is realized. Because the roughness of the rough surface is large, the friction between the first titanium and titanium alloy scrap material and the bottom plate 200 can be increased, mutual movement between the first titanium and titanium alloy scrap material and the bottom plate 200 is avoided, and the first titanium and titanium alloy scrap material moves to the smelting chamber smoothly.

[0039] In the embodiment of the utility model, the second protruding part 340 is used for limiting and fixing the first titanium and titanium alloy scrap material. When the pushing rod pushes the first titanium and titanium alloy scrap material to move, the second protruding part 340 can also limit and fix the first titanium and titanium alloy scrap material, avoid mutual movement between the first titanium and titanium alloy scrap material and the guard plate 300, and make the first titanium and titanium alloy scrap material move to the smelting chamber smoothly.

[0040] In the embodiment of the utility model, the length of the pushing plate 100 is 790-795mm, and the width is 500-600mm. Because the width of the feeding groove 400 is 800mm, when the length of the pushing plate 100 is 790-795mm, the pushing plate 100 is spaced apart from the two side walls of the feeding groove 400 by 2.5-5mm. By keeping a spacing distance between the pushing plate 100 and the side walls of the feeding groove 400, that is, keeping a spacing distance between the feeding device and the side walls of the feeding groove 400, friction between the feeding device and the side walls of the feeding groove 400 is avoided, and it is ensured that the pushing rod can push the feeding device smoothly.

[0041] In an embodiment of the utility model, the length of bottom plate 200 is 5500-6000mm, and the width is 790-795mm; the length of guard plate 300 is 5500-6000mm, and the width is 100-200mm. Since the length of feed groove 400 is 5500-6000mm, the length of bottom plate 200 and the length of guard plate 300 are also 5500-6000mm, ensuring that the length of feed groove 400 and the length of feeding device are consistent, increasing the loading space of feeding device, and improving the loading amount of first titanium and titanium alloy scrap material of feeding device.

[0042] In an embodiment of the utility model, guard plate 300 includes a plurality of first guard plates, and the plurality of first guard plates are connected in turn along the feeding direction of electron beam cold hearth furnace, and the length of first guard plate ranges from 500mm to 1000mm. Since the length of guard plate 300 is 5500-6000mm, it is difficult to select guard plate 300 from scrap material, so a plurality of first guard plates can be selected, each first guard plate has a length of 500-1000mm, and the plurality of first guard plates are spliced to form guard plate 300 with a length of 5500-6000mm.

[0043] In an embodiment of the utility model, bottom plate 200 includes a plurality of first bottom plates, and the plurality of first bottom plates are connected in turn along the feeding direction of electron beam cold hearth furnace, and the length of first bottom plate ranges from 500mm to 1000mm. Since the length of bottom plate 200 is 5500-6000mm, it is difficult to select bottom plate 200 from scrap material, so a plurality of first bottom plates can be selected, each first bottom plate has a length of 500-1000mm, and the plurality of first bottom plates are spliced to form bottom plate 200 with a length of 5500-6000mm.

[0044] In an embodiment of the utility model, the thickness of pushing plate 100, guard plate 300 and bottom plate 200 is 3-10mm. Rolled plate scrap material with a thickness of 3-10mm can be selected as pushing plate 100, guard plate 300 and bottom plate 200. Not only the recycling of rolled plate scrap material is realized, but also the first titanium and titanium alloy scrap material is prevented from being stuck during pushing, leading to interruption of smelting, and the smelting efficiency of electron beam cold hearth furnace is improved.

[0045] The working principle of feeding device is as follows:

[0046] When electron beam cold hearth smelting is performed, the feeding device is placed in the feed groove 400 of the electron beam cold hearth furnace, and the first titanium and titanium alloy scrap material is placed in the loading space formed by the pushing plate 100, the bottom plate 200 and the two guard plates 300.

[0047] Two feeding grooves 400 are respectively placed in left and right feeding chambers of the electron beam cold hearth furnace, then the left and right feeding chambers are closed, and the left and right feeding chambers and the smelting chamber are vacuumized to a vacuum degree of less than or equal to 0.7 Pa, and then smelting is started.

[0048] Figure 5 A perspective structural schematic view of the feeding groove 400 is provided for the embodiments of the utility model, Figure 6 A top view structural schematic view of the feeding groove 400 is provided for the embodiments of the utility model, Figure 7 An assembly schematic view of the feeding device of the electron beam cold hearth furnace and the feeding groove 400 is provided for the embodiments of the utility model, Figure 8 As Figure 7 A local enlarged view of A in the middle is shown as follows, Figures 5 to 8 After smelting is started, the pushing rod of the electron beam cold hearth furnace moves the feeding device relative to the feeding groove 400 towards the smelting chamber by pushing the pushing plate 100. The guard plate 300 separates the weld 410 of the feeding groove 400 from the first titanium and titanium alloy scrap located in the charging space, so as to avoid the first titanium and titanium alloy scrap from abutting against the weld 410, the side wall and the bottom wall on both sides of the feeding groove 400, and thus being stuck.

[0049] After entering the smelting chamber, the feeding device and the first titanium and titanium alloy scrap are simultaneously bombarded by the electron beam to be melted into titanium liquid. The titanium liquid flows into the crystallizer crucible to be solidified through the melting cold hearth and the refining cold hearth, and then the cast ingot is pulled to the ingot pulling chamber through the ingot pulling system, and then the furnace is discharged after being cooled down, so as to obtain a titanium and titanium alloy round ingot or flat ingot.

[0050] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all of them should be covered in the protection scope of the utility model.

Claims

1. A feed arrangement for an electron beam cold hearth furnace, characterized in that, include: A pusher plate is used to contact the first titanium and titanium alloy scrap in order to push the first titanium and titanium alloy scrap toward the melting chamber of the electron beam cold hearth furnace; A base plate is connected to the pusher plate, and the base plate is used to support the first titanium and titanium alloy waste material. Two protective plates are connected to the two sides of the bottom plate one to one. The protective plates are located between the first titanium and titanium alloy waste material and the side wall of the feed trough of the electron beam cold hearth furnace. The protective plates are used to isolate the first titanium and titanium alloy waste material from the side wall of the feed trough. The pusher plate, the bottom plate and the two protective plates form a loading space for accommodating the first titanium and titanium alloy waste material. The pusher plate, the bottom plate and the two protective plates are all made of the second titanium and titanium alloy waste material.

2. The feed arrangement for an e-beam cold hearth furnace of claim 1, wherein, The guard plate is also connected to the pusher plate.

3. The feed arrangement for an e-beam cold hearth furnace of claim 2, wherein, Argon arc welds are provided at the connection between the base plate and the pusher plate, and at the connection between the guard plate and the base plate.

4. The feed arrangement for an e-beam cold hearth furnace of claim 3, wherein, The guard plate and the bottom plate are provided with a first reinforcing rib on the side facing the first titanium and titanium alloy waste material, the guard plate and the pusher plate are provided with a second reinforcing rib on the side facing the first titanium and titanium alloy waste material, and the bottom plate and the pusher plate are provided with a third reinforcing rib on the side facing the first titanium and titanium alloy waste material.

5. The feed arrangement for an e-beam cold hearth furnace of claim 4, wherein, The base plate has a first protrusion on the side facing the first titanium and titanium alloy waste material, and the first protrusion is used to limit and fix the first titanium and titanium alloy waste material.

6. The feed arrangement for an e-beam cold hearth furnace of claim 5, wherein, The protective plate has a second protrusion on the side facing the first titanium and titanium alloy waste material, and the second protrusion is used to limit and fix the first titanium and titanium alloy waste material.

7. The feed arrangement for an e-beam cold hearth furnace of any one of claims 1 to 6, wherein, The pusher plate has a length of 790-795mm and a width of 500-600mm.

8. The feed arrangement for an e-beam cold hearth furnace of claim 7, wherein, The base plate has a length of 5500-6000mm and a width of 790-795mm; the guard plate has a length of 5500-6000mm and a width of 100-200mm.

9. The feed arrangement for an e-beam cold hearth furnace of claim 8, wherein, The guard plate includes multiple first guard plates, which are connected sequentially along the feeding direction of the electron beam cooling hearth furnace, and the length of the first guard plate ranges from 500 to 1000 mm.

10. The feed arrangement for an e-beam cold hearth furnace of any one of claims 1 to 6, wherein, The thickness of the pusher plate, the guard plate, and the base plate is 3-10mm.

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