Tantalum metal blank rolling equipment
By designing a rolling device with alternating horizontal and vertical roll groups, combined with servo motor drive and guide components, the problems of low efficiency and poor safety of existing tantalum metal billet rolling equipment have been solved, realizing efficient and automated tantalum metal billet rolling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-03-31
AI Technical Summary
Existing tantalum metal billet rolling equipment is inefficient, labor-intensive, and unsafe, making it difficult to achieve automation and digital control, and it also causes serious environmental pollution.
A rolling device was designed, which includes a rotatable mounting plate and alternating horizontal and vertical roll groups. The roll groups are driven by a servo motor to realize a multi-pass cold rolling process. It is equipped with guide components and a take-up device to ensure stable rolling and efficient take-up of tantalum metal billets.
It improves the rolling efficiency and quality of tantalum metal billets, realizes automated and digital control, and reduces labor intensity and environmental pollution.
Smart Images
Figure CN224058355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tantalum metal processing technology, and in particular to a tantalum metal billet rolling equipment. Background Technology
[0002] Tantalum metal includes tantalum and tantalum alloys. The rolling of tantalum billets is a niche metal processing activity, lacking mature, dedicated large-scale rolling equipment; traditional two-roll mills are commonly used. Operators sequentially feed the billet into multiple passes on the rolls to complete multiple rolling runs. Sometimes, incorrectly feeding the billet into the passes can lead to excessive processing rates per pass, damaging the mill or the material. Two-roll mill rolling is inefficient, labor-intensive, and poses safety risks to equipment and materials. It is difficult to automate or digitize, and it generates significant environmental pollution such as noise and fumes. Traditional two-roll mills have multiple pass slots forming a pass system. The operation requires two people: one person feeds the metal billet from the mill feed end into the passes, and the other person returns the billet from the mill discharge end to the feed end, repeating this unidirectional rolling process multiple times. This method is inefficient, labor-intensive, and lacks safety. Utility Model Content
[0003] The purpose of this invention is to provide a tantalum metal billet rolling equipment that can perform more efficient and higher quality rolling of tantalum metal billets.
[0004] The first aspect of this utility model discloses a tantalum metal billet rolling device, comprising a first frame, a mounting plate rotatably disposed relative to the first frame, a second frame, a first cylinder and a second cylinder arranged vertically at intervals and hinged to and opposite to the second frame, a third cylinder and a fourth cylinder arranged horizontally at intervals and hinged to and opposite to the second frame, a first cylindrical roll and a second cylindrical roll arranged horizontally at intervals and hinged to and opposite to the second frame, and a rolling device. The mounting plate, the second frame, the first cylinder, the first cylindrical roll, and the rolling device are arranged sequentially along the movement direction of the tantalum metal billet. The mounting plate is used to place the tantalum metal billet. The axis of the first cylinder is coaxial with the axis of its hinge to the second frame, the axis of the second cylinder is coaxial with the axis of its hinge to the second frame, the axis of the first cylinder is parallel to the axis of the second cylinder, and the axis of the third cylinder is parallel to the axis of its hinge to the second frame. The axes of the frame hinges are coaxial. The axis of the fourth cylinder is coaxial with the axis of its hinge to the second frame. The axis of the third cylinder is parallel to the axis of the fourth cylinder and not parallel to the axis of the first cylinder. The axis of the first cylindrical roller is coaxial with the axis of its hinge to the second frame and both are vertical. The axis of the second cylindrical roller is coaxial with the axis of its hinge to the second frame and both are vertical. The outer circumferential surfaces of the first cylindrical roller and the second cylindrical roller are respectively provided with a first annular groove and a second annular groove for the passage of tantalum metal billet. The first annular groove and the second annular groove overlap or intersect in the vertical direction. The rolling device includes a plurality of roll groups arranged sequentially along the moving direction of the tantalum metal billet. The plurality of roll groups include a plurality of horizontal roll groups and vertical roll groups arranged alternately. The horizontal roll group includes a first roll and a second roll with the rotation axis along the horizontal direction. The vertical roll group includes a third roll and a fourth roll with the rotation axis along the vertical direction.
[0005] In some embodiments, the grooves of a plurality of adjacent roll groups form a rhombic-square hole system.
[0006] In some embodiments, the horizontal roll group further includes a first servo motor and a second servo motor respectively driven and connected to the first roll and the second roll, and the vertical roll group further includes a third servo motor and a fourth servo motor respectively driven and connected to the third roll and the fourth roll.
[0007] In some embodiments, the rolling apparatus further includes a first guide component disposed between adjacent roll groups. The first guide component includes a first hole and a second hole that are interconnected for passing through a tantalum metal billet along the moving direction of the tantalum metal billet. The first hole is located upstream of the second hole, and the cross-sectional area of the first hole gradually decreases along the moving direction of the tantalum metal billet. The second hole is a straight hole.
[0008] In some embodiments, the rolling apparatus further includes a third stand and a second guide device disposed between adjacent roll groups for the passage of the tantalum metal billet. The second guide device includes a third cylindrical roll and a fourth cylindrical roll arranged horizontally at intervals and hinged to and opposite to the third stand. The axis of the third cylindrical roll and the axis of its hinge to the third stand are coaxial and both are in the vertical direction. The axis of the fourth cylindrical roll and the axis of its hinge to the third stand are coaxial and both are in the vertical direction. Between two adjacent roll groups, along the direction of movement of the tantalum metal billet, the second guide device is located downstream of the first guide device.
[0009] In some embodiments, a take-up device is further included for taking up tantalum metal billets after they have passed through a rolling mill. The take-up device includes a take-up drum, which includes a shrinkage section and an entry section for entering the tantalum metal billet. The diameter of the outer circumferential surface of the take-up drum gradually decreases along the axial direction from the entry section to the shrinkage section. The take-up drum also includes a fixing portion for fixing the free end of the tantalum metal billet, which is close to the shrinkage section relative to the entry section.
[0010] In some embodiments, the fixing part includes a fixing hole provided on the end of the take-up device.
[0011] The second aspect of this utility model discloses a method for rolling tantalum metal billets using any of the described tantalum metal billet rolling equipment, comprising: placing the tantalum metal billet on a mounting plate; passing the tantalum metal billet through the gap between the first cylinder and the second cylinder and through the gap between the third cylinder and the fourth cylinder, and then through the gap between the first annular groove of the first cylindrical roller and the second annular groove of the second cylindrical roller; and then rolling the tantalum metal billet using the first and second rollers of the horizontal roller group and the third and fourth rollers of the vertical roller group.
[0012] In some embodiments, the tantalum metal billet rolling equipment further includes a take-up device for taking up the tantalum metal billet after it has passed through the rolling device. The take-up device includes a take-up drum, which includes a shrinkage section and an inlet section for entering the tantalum metal billet. The diameter of the outer circumferential surface of the take-up drum gradually decreases along the axial direction from the inlet section to the shrinkage section. The take-up drum also includes a fixing part for fixing the free end of the tantalum metal billet. The fixing part is close to the shrinkage section relative to the inlet section. The rolling method of the tantalum metal billet further includes: feeding the tantalum metal billet after it has passed through the rolling device into the inlet section of the take-up drum, and after winding the billet around the outer circumferential surface of the inlet section once, fixing the free end of the tantalum metal billet to the fixing part, and then rotating the take-up drum to take up the tantalum metal billet.
[0013] In some embodiments, the method further includes: selecting tantalum alloy bars and sintering or annealing them to eliminate processing stress, thereby forming the tantalum metal billet; rolling the tantalum metal billet using the first and second rolls of the horizontal roll group and the third and fourth rolls of the vertical roll group includes: the rolling apparatus includes four or more roll groups; the initial roll grooves of the rolling apparatus form a rhombic-square hole system, allowing the tantalum metal billet to pass through the initial roll grooves of the multiple roll groups while simultaneously driving the rolls of the roll groups with a servo motor to perform a multi-pass cold rolling process on the tantalum metal billet; and the last two roll groups of the rolling apparatus form an elliptical-circular hole system, allowing the tantalum metal billet to finally pass through the roll grooves of the last two roll groups.
[0014] In some embodiments, the rolling mill performs a total of 15-19 rolling passes on the metal billet, with a processing rate of 8% to 15% per pass, and the total processing rate of the rolling mill on the tantalum metal billet is 80% to 95%.
[0015] In some embodiments, the rolling device rolls the metal billet at a speed of 10 to 100 m / min, and the linear velocity of the rolls in the roll set is greater than the linear velocity of the tantalum metal billet.
[0016] The tantalum metal billet rolling equipment provided by this utility model, by setting a rotatable mounting plate and a rolling device with alternating horizontal and vertical roll groups, can continuously and effectively roll tantalum metal billets with high rolling efficiency. Simultaneously, by setting structures such as a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a first cylindrical roll, and a second cylindrical roll in front of the rolling device, the tantalum metal billet can be stably and reliably fed into the rolling device. Utilizing the alternating horizontal and vertical roll groups of the rolling device, high-quality rolling of the tantalum metal billet can be achieved.
[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the tantalum metal billet rolling equipment according to an embodiment of the present utility model;
[0020] Figure 2 for Figure 1 A schematic diagram of part of the tantalum metal billet rolling equipment shown;
[0021] Figure 3 for Figure 2 A top view of a portion of the structure shown;
[0022] Figure 4 for Figure 1 A schematic diagram of part of the tantalum metal billet rolling equipment shown;
[0023] Figure 5 for Figure 4 Top view of the structure shown;
[0024] Figure 6 This is a schematic diagram of the structure of a tantalum metal billet rolling equipment according to another embodiment of the present invention;
[0025] Figure 7 for Figure 1 A partial cross-sectional structural schematic diagram of the take-up device of the tantalum metal billet rolling equipment shown;
[0026] Figure 8 for Figure 7 Top view of the structure shown;
[0027] Figure 9 for Figure 1 A cross-sectional schematic diagram of the second guide device of the tantalum metal billet rolling equipment shown;
[0028] Figure 10 for Figure 9 A schematic diagram of the structure shown from another angle. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0031] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0034] The tantalum metal billet rolling equipment of this embodiment includes a first frame 11, a mounting plate 111, a second frame 12, a first cylinder 21 and a second cylinder 22, a third cylinder 23 and a fourth cylinder 24, a first cylindrical roll 31 and a second cylindrical roll 32, and a rolling device. The mounting plate 111 is rotatably mounted relative to the first frame 11. The first cylinder 21 and the second cylinder 22 are arranged opposite each other and spaced apart in the vertical direction, and both the first cylinder 21 and the second cylinder 22 are hinged relative to the second frame 12. The third cylinder 23 and the fourth cylinder 24 are arranged opposite each other and spaced apart in the horizontal direction, and both the third cylinder 23 and the fourth cylinder 24 are hinged relative to the second frame 12. The first cylindrical roll 31 and the second cylindrical roll 32 are arranged opposite each other and spaced apart in the horizontal direction, and both the first cylindrical roll 31 and the second cylindrical roll 32 are hinged to the second frame 12.
[0035] The mounting plate 111, the second frame 12, the first cylinder 21, the first cylindrical roll 31, and the rolling device are arranged sequentially along the direction of movement of the tantalum metal billet. The mounting plate 111 is used to place the tantalum metal billet. After the tantalum metal billet 100 is placed on the mounting plate, during the rolling of the tantalum metal billet, if... Figure 1 As shown, a strip-shaped billet is drawn from the tantalum metal billet 100 on the mounting plate, then passes through the first cylinder 21 and the second cylinder 22, the first cylindrical roll 31 and the second cylindrical roll 32, and finally passes through the rolling mill for rolling. The direction of movement of the tantalum metal billet is also the direction in which the strip-shaped billet drawn from the mounting plate passes sequentially through the first cylinder 21 and the second cylinder 22, the first cylindrical roll 31 and the second cylindrical roll 32, and the rolling mill. Figure 1 , Figure 3 and Figure 4As shown, the axis of the first cylinder 21 is coaxial with the axis of its hinge to the second frame 12; the axis of the second cylinder 22 is coaxial with the axis of its hinge to the second frame 12; the axis of the first cylinder 21 is parallel to the axis of the second cylinder 22; the axis of the third cylinder 23 is coaxial with the axis of its hinge to the second frame 12; the axis of the fourth cylinder 24 is coaxial with the axis of its hinge to the second frame 12; the axes of the third cylinder 23 and the fourth cylinder 24 are parallel but not parallel to the axis of the first cylinder 21. In the embodiment shown, the axis of the first cylinder is horizontal, and the axis of the third cylinder is vertical. The axis of the first cylindrical roller 31 and the axis of its hinge to the second frame 12 are coaxial and both are in the vertical direction. The axis of the second cylindrical roller 32 and the axis of its hinge to the second frame 12 are coaxial and both are in the vertical direction. The outer circumferential surfaces of the first cylindrical roller 31 and the second cylindrical roller 32 are respectively provided with a first annular groove 311 and a second annular groove for the passage of tantalum metal billet. The first annular groove 311 and the second annular groove overlap or intersect in the vertical direction. In the embodiment shown in the figure, the first annular groove 311 and the second annular groove are symmetrical in shape and overlap in the vertical direction. Thus, during rolling, the first cylinder 21, the second cylinder 22, and the third cylinder 23 and the fourth cylinder 24, which are not parallel to their axes, guide the strip-shaped tantalum metal billet from two different directions. The strip-shaped tantalum metal billet then passes through the first annular groove 311 and the second annular groove, which overlap or intersect in the vertical direction. The first annular groove and the second annular groove can provide further stabilizing guidance for the strip-shaped tantalum metal billet, thereby enabling the tantalum metal billet to enter the rolling mill stably and smoothly, ensuring the rolling effect. The rolling mill includes multiple roll groups arranged sequentially along the movement direction of the tantalum metal billet. The multiple roll groups include multiple horizontal roll groups 61 and vertical roll groups 62 arranged alternately. The horizontal roll group 61 includes a first roll 611 and a second roll 612 with the rotation axis in the horizontal direction, and the vertical roll group 62 includes a third roll and a fourth roll with the rotation axis in the vertical direction. The tantalum metal billet is continuously rolled by passing through the horizontal roll group 61 and the vertical roll group 62. The setting of the horizontal roll group and the vertical roll group can make the tantalum metal billet more uniformly stressed during rolling, thereby improving the rolling quality.
[0036] The tantalum metal billet rolling equipment of this embodiment, by setting a rotatable mounting plate 111 and a rolling device with alternating horizontal roll groups 61 and vertical roll groups 62, can continuously and effectively roll tantalum metal billets with high rolling efficiency. Simultaneously, by setting structures such as a first cylinder 21, a second cylinder 22, a third cylinder 23, a fourth cylinder 24, a first cylindrical roll 31, and a second cylindrical roll 32 in front of the rolling device, the tantalum metal billet can be stably and reliably introduced into the rolling device. Utilizing the alternating horizontal roll groups 61 and vertical roll groups 62 of the rolling device, high-quality rolling of the tantalum metal billet can be achieved.
[0037] In some embodiments, the grooves of multiple adjacent roll groups form a rhombic-square pass system. The grooves of two rolls in a roll group form a pass, and the shape of the pass determines the shape and size of the cross-section of the metal passing through the two rolls. The passes of multiple roll groups thus form a pass system. A rhombic-square pass system is a pass system in rolling processes, which is rhomboid or approximately rhomboid in shape and is distributed on specific rolling passes to form a pass system combination.
[0038] In some embodiments, the horizontal roll group 61 further includes a first servo motor and a second servo motor respectively driven and connected to the first roll 611 and the second roll 612, and the vertical roll group 62 further includes a third servo motor and a fourth servo motor respectively driven and connected to the third roll and the fourth roll. Each roll in each pass of the roll group is controlled by a servo motor. The rolling status of the equipment is displayed on the operation panel, and digital settings and adjustments can be made quickly and accurately to control the speed of each roll, thereby adjusting the linear velocity between rolling passes and ensuring that the speed of each roll during the rolling process is consistent with the plastic deformation flow velocity of the rolled billet.
[0039] In some embodiments, such as Figure 1 and Figure 9 As shown, to facilitate the smooth entry of the tantalum metal billet into the rolling groove of the next rolling mill after being rolled by the rolling mill group, the rolling apparatus also includes a first guide component 5 disposed between adjacent rolling mill groups. The first guide component 5 includes a first hole 51 and a second hole 52 that are interconnected for the passage of the tantalum metal billet. Along the moving direction of the tantalum metal billet, the first hole 51 is located upstream of the second hole 52, and the cross-sectional area of the first hole 51 gradually decreases along the moving direction of the tantalum metal billet. The second hole 52 is a straight hole. The structure of the first hole 51 allows for effective and gradual adjustment of the position of the tantalum metal billet, and the second hole 52 allows for precise fixation of the adjusted position of the tantalum metal billet, thereby ensuring accurate entry into the next rolling mill group for effective rolling.
[0040] In some embodiments, to ensure that the tantalum billet enters the groove of the next roll set more accurately, the rolling apparatus further includes a third stand 13 and a second guide device for the passage of the tantalum billet located between adjacent roll sets. The second guide device includes a third cylindrical roll and a fourth cylindrical roll 23, which are arranged horizontally at intervals and hinged to and opposite to the third stand 13. The axis of the third cylindrical roll and its hinged axis to the third stand 13 are coaxial and both are vertical. The axis of the fourth cylindrical roll 23 and its hinged axis to the third stand 13 are coaxial and both are vertical. Between two adjacent roll sets, along the direction of movement of the tantalum billet, the second guide device is located downstream of the first guide device. The arrangement of the third cylindrical roll and the fourth cylindrical roll 23 can better mitigate the fluctuations of the tantalum billet, making the position of the tantalum billet more stable and further improving the rolling quality.
[0041] In some embodiments, such as Figure 1 , Figure 7 and Figure 8 As shown, the tantalum metal billet rolling equipment also includes a take-up device 4 for taking up the tantalum metal billet after it has passed through the rolling device. The take-up device 4 includes a take-up drum, which includes a shrinkage section 42 and an inlet section 41 for entering the tantalum metal billet. The diameter of the outer circumference of the take-up drum gradually decreases along the axial direction from the inlet section 41 to the shrinkage section 42. The take-up drum also includes a fixing part 43 for fixing the free end of the tantalum metal billet. The fixing part 43 is close to the shrinkage section 42 relative to the inlet section 41. After rolling, the tantalum metal billet enters the take-up device from the inlet section 41. After being wound around the outer circumference of the inlet section 41, the free end of the tantalum metal billet is fixed to the fixing part 43. Then, as the take-up drum rotates, the length of the tantalum metal billet segment entering the take-up drum becomes longer and longer. Since the diameter of the outer circumference of the take-up drum in this embodiment gradually decreases along the axial direction from the inlet section 41 to the shrinkage section 42, the tantalum metal billet segments that enter the inlet section 41 later will squeeze the tantalum metal billet segments that enter the inlet section 41 earlier, causing the tantalum metal billet segments to gradually gather towards the shrinkage section 42, thereby realizing the automatic take-up and arrangement of the tantalum metal billet.
[0042] In some embodiments, the fixing part 43 includes a fixing hole provided on the end of the take-up device 4. By providing a fixing hole, the tantalum metal blank can be hooked into the fixing hole by simply bending the free end of the tantalum metal blank, thus quickly connecting the tantalum metal blank to the fixing part.
[0043] In some embodiments, a method for rolling a tantalum metal billet using any of the above-described tantalum metal billet rolling equipment is also disclosed, comprising: placing the tantalum metal billet on a mounting plate 111; passing the tantalum metal billet through the gap between the first cylinder 21 and the second cylinder 22 and through the gap between the third cylinder 23 and the fourth cylinder 24, and then through the gap between the first annular groove 311 of the first cylindrical roll 31 and the second annular groove of the second cylindrical roll 32; and then rolling the tantalum metal billet using the first roll 611 and the second roll 612 of the horizontal roll group 61 and the third roll and the fourth roll of the vertical roll group 62.
[0044] In some embodiments, the tantalum metal billet rolling equipment further includes a take-up device 4 for taking up the tantalum metal billet after it has passed through the rolling device. The take-up device 4 has a take-up drum, which includes a shrinkage section 42 and an inlet section 41 for entering the tantalum metal billet. The diameter of the outer peripheral surface of the take-up drum gradually decreases along the axial direction from the inlet section 41 to the shrinkage section 42. The take-up drum also includes a fixing part 43 for fixing the free end of the tantalum metal billet. The fixing part 43 is close to the shrinkage section 42 relative to the inlet section 41. The rolling method of the tantalum metal billet further includes: feeding the tantalum metal billet after it has passed through the rolling device into the inlet section 41 of the take-up drum, and after the inlet section 41 is wound around the outer peripheral surface of the inlet section 41 once, fixing the free end of the tantalum metal billet to the fixing part 43, and then rotating the take-up drum to take up the tantalum metal billet.
[0045] In some embodiments, the method further includes: selecting tantalum alloy bars and sintering or annealing them to eliminate processing stress, thereby forming a tantalum metal billet; rolling the tantalum metal billet using the first roll 611 and the second roll 612 of the horizontal roll group 61 and the third roll and the fourth roll of the vertical roll group 62 includes: the rolling apparatus includes four or more roll groups, the initial roll groups of the rolling apparatus have grooves forming a rhombic-square hole system, the tantalum metal billet passes through the grooves of the initial roll groups and the rolls of the roll groups are driven by servo motors to perform a multi-pass cold rolling process on the tantalum metal billet, and the last two roll groups of the rolling apparatus have grooves forming an elliptical-circular hole system, the tantalum metal billet finally passes through the grooves of the last two roll groups.
[0046] In some embodiments, the rolling mill performs 15-19 rolling passes on the metal billet, with a processing rate of 8%-15% per pass, resulting in a total processing rate of 80%-95% for the tantalum metal billet. Processing rate: This is an indicator that measures the degree of deformation of a material during processing. In metal processing and other fields, the processing rate is usually expressed as the ratio of the dimensional change of the material before and after processing to the original size. A higher processing rate means that the material has undergone a greater degree of deformation, but an excessively high processing rate may lead to changes in material properties, defects, and other problems.
[0047] In some embodiments, the rolling speed of the rolling device on the metal billet is 10 to 100 m / min, and the linear velocity of the rolls in the roll set is greater than the linear velocity of the tantalum metal billet.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A tantalum metal billet rolling apparatus characterized by, The device comprises a first frame, a mounting disc rotatably arranged relative to the first frame, a second frame, a first cylinder and a second cylinder arranged in a vertical direction and hinged relative to the second frame and arranged oppositely, a third cylinder and a fourth cylinder arranged in a horizontal direction and hinged relative to the second frame and arranged oppositely, a first cylindrical roller and a second cylindrical roller arranged in a horizontal direction and hinged relative to the second frame and arranged oppositely, and a rolling device, the mounting disc, the second frame, the first cylinder, the first cylindrical roller and the rolling device are arranged in sequence along a moving direction of a tantalum metal blank, the mounting disc is used for placing the tantalum metal blank, an axis of the first cylinder and an axis hinged with the second frame are coaxial, an axis of the second cylinder and an axis hinged with the second frame are coaxial, the axis of the first cylinder and the axis of the second cylinder are parallel, an axis of the third cylinder and an axis hinged with the second frame are coaxial, an axis of the fourth cylinder and an axis hinged with the second frame are coaxial, the axis of the third cylinder and the axis of the fourth cylinder are parallel and not parallel to the axis of the first cylinder, an axis of the first cylindrical roller and an axis hinged with the second frame are coaxial and both are in a vertical direction, an axis of the second cylindrical roller and an axis hinged with the second frame are coaxial and both are in a vertical direction, outer circumferential surfaces of the first cylindrical roller and the second cylindrical roller are respectively provided with a first annular groove and a second annular groove for passing of the tantalum metal blank, the first annular groove and the second annular groove overlap or intersect in a vertical direction, the rolling device comprises a plurality of roller groups arranged in sequence along the moving direction of the tantalum metal blank, the plurality of roller groups comprise a plurality of horizontal roller groups and vertical roller groups arranged alternately, the horizontal roller group comprises a first roller and a second roller with rotating axes in a horizontal direction, and the vertical roller group comprises a third roller and a fourth roller with rotating axes in a vertical direction.
2. The tantalum metal billet rolling apparatus of claim 1, wherein, Hole shapes of rolling grooves of a plurality of adjacent roller groups form a diamond-square hole shape system.
3. The tantalum metal billet rolling apparatus of claim 1, wherein, The horizontal roller group further comprises a first servo motor and a second servo motor drivingly connected with the first roller and the second roller respectively, and the vertical roller group further comprises a third servo motor and a fourth servo motor drivingly connected with the third roller and the fourth roller respectively.
4. The tantalum metal billet rolling apparatus of claim 1, wherein, The rolling device further comprises a first guide part arranged between adjacent roller groups, the first guide part comprises a first hole and a second hole for passing of the tantalum metal blank and communicating with each other, along the moving direction of the tantalum metal blank, the first hole is located upstream of the second hole, a cross-sectional area of the first hole tapers along the moving direction of the tantalum metal blank, and the second hole is a straight hole.
5. The tantalum metal billet rolling apparatus of claim 4, wherein, The rolling device further comprises a third rack and a second guide device for the tantalum metal blank to pass between the adjacent roller groups, the second guide device comprising third and fourth cylindrical rollers arranged in a horizontal direction and hinged to and oppositely arranged with the third rack, the axis of the third cylindrical roller coaxial with the axis of the third rack hinged to the third rack and both in a vertical direction, the axis of the fourth cylindrical roller coaxial with the axis of the third rack hinged to the third rack and both in a vertical direction, the second guide device located downstream of the first guide device in the moving direction of the tantalum metal blank between the adjacent two roller groups.
6. The tantalum metal billet rolling apparatus of claim 1, wherein, The rolling device further comprises a take-up device for taking up the tantalum metal blank after passing through the rolling device, the take-up device comprising a take-up drum, the take-up drum comprising a take-up section and a wire inlet section for the tantalum metal blank to enter, the outer circumferential surface of the take-up drum gradually decreasing in diameter in the axial direction from the wire inlet section to the take-up section, the take-up drum further comprising a fixing portion for fixing the free end of the tantalum metal blank, the fixing portion close to the take-up section relative to the wire inlet section.
7. The tantalum metal billet rolling apparatus of claim 6, wherein, The fixing portion comprises a fixing hole provided on the end portion of the take-up device.