Heating device for warm rolling processing of molybdenum and molybdenum alloy sheets

Abstract

The utility model discloses a heating device for molybdenum and molybdenum alloy sheet warm rolling processing, which comprises a support frame, two ends of the top of the support frame are respectively connected with a first motor, each first motor is connected with a lead screw elevator, the bottom end of each lead screw elevator extends into the support frame, the bottom end of each lead screw elevator is connected with a connecting block, and the connecting block is connected with a connecting rod. The bottom of each connecting block is connected with a connecting rod, the bottoms of the two connecting rods are connected with a resistance furnace, and a conveying unit is arranged below the resistance furnace and arranged in the supporting frame. The heating device provided by the utility model solves the problem that a molybdenum plate with cold brittleness and the thickness of more than or equal to 1.2 mm is extremely easy to crack in rolling when being rolled at room temperature.

Description

Technical Field

[0001] The utility model belongs to the technical field of molybdenum and molybdenum alloy thin plate processing equipment, in particular to a heating device used for warm rolling of molybdenum and molybdenum alloy thin plates. Background Art

[0002] Domestic molybdenum and molybdenum alloy thin plate products are mainly used in magnetic materials, photovoltaics, semiconductors and other industries. They are used as heat insulation screens and inner cylinders for vacuum sintering furnaces, vacuum annealing furnaces, hot isostatic pressing and other equipment. Due to the limitations of the molybdenum material's own characteristics and processing equipment, the domestic mass-produced molybdenum and molybdenum alloy thin plates are less than 600mm in width and less than 2000mm in length. Therefore, they are generally spliced ​​when used in large equipment.

[0003] However, with the promotion of high-quality development, the iteration of process technology, the upgrading and updating of equipment, the inherent defects of spliced ​​molybdenum plates, such as easy breakage at riveting joints and poor sealing at joints, can no longer meet user needs, and the demand for large-size molybdenum and molybdenum alloy sheets is becoming increasingly strong.

[0004] However, due to the cold brittleness of molybdenum, rolling cracking is very likely to occur when molybdenum plates with a thickness of ≥1.2mm are rolled at room temperature.

[0005] For this reason, we urgently need to provide a heating device for warm rolling of molybdenum and molybdenum alloy thin plates. Utility Model Content

[0006] The utility model aims to provide a heating device for warm rolling of molybdenum and molybdenum alloy thin plates, which solves the problem that molybdenum plates with a thickness of ≥1.2mm are prone to rolling cracking when rolled at room temperature due to the cold brittleness of molybdenum.

[0007] The technical solution adopted by the utility model is a heating device for warm rolling processing of molybdenum and molybdenum alloy thin plates, including a support frame, first motors are respectively connected to the two ends of the top of the support frame, each of the first motors is connected to a screw elevator, the bottom end of each screw elevator extends into the interior of the support frame, the bottom end of each screw elevator is connected to a connecting block, the bottom of each connecting block is connected to a connecting rod, the bottoms of the two connecting rods are connected to a resistance furnace, a transport unit is arranged below the resistance furnace, and the transport unit is arranged inside the support frame.

[0008] The utility model is also characterized in that:

[0009] The transport unit includes a shell connected to a support frame, and a plurality of conveying rollers are arranged in sequence inside the shell along its length, one end of the plurality of conveying rollers is rotatably connected to the side wall of the shell, the other end of the plurality of conveying rollers passes through a baffle and the other end of the plurality of conveying rollers is respectively connected to a first gear, the two ends of the baffle are respectively connected to the two short sides of the shell and the baffle is arranged parallel to the long side of the shell, each first gear is arranged between the baffle and the side wall of the shell, a second gear is meshed between two adjacent first gears, a fixing rod is centrally sleeved on each second gear, one end of each fixing rod is connected to the baffle, and the other end of each fixing rod is connected to the side wall of the shell, one of the conveying rollers located at the end is connected to a second motor at the end close to the first gear, and the second motor is connected to the shell.

[0010] One end of each conveying roller connected to the shell is sleeved with a bearing, and each bearing is connected to the shell.

[0011] Two limiting rods are connected to the top of the resistance furnace and located between the two connecting rods. Fixed blocks are sleeved on the two limiting rods, and the fixed blocks are arranged on the top of the supporting frame.

[0012] The resistance furnace is connected to the two limit rods via a fixing seat.

[0013] The connection between the connecting rod and the resistance furnace is hinged.

[0014] The beneficial effects of the utility model are:

[0015] (1) The utility model is used for a heating device for warm rolling of molybdenum and molybdenum alloy thin plates. By setting a heating unit to heat the resistance furnace online, the heating temperature can be as high as 400°C, and the molybdenum and molybdenum alloy thin plates can be heated to avoid rolling cracking during rolling;

[0016] (2) The utility model is used for a heating device for warm rolling of molybdenum and molybdenum alloy thin plates. By setting a transport unit, the molybdenum and molybdenum alloy thin plates can be transported, and the transportation can be achieved while heating. There is no need for workers to carry them, thereby reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the heating device used for warm rolling of molybdenum and molybdenum alloy thin plates according to the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the transport unit in the heating device for warm rolling of molybdenum and molybdenum alloy thin plates of the utility model;

[0019] Figure 3 This is a partial structural exploded view of the transport unit in the heating device for warm rolling of molybdenum and molybdenum alloy thin plates of the utility model;

[0020] Figure 4The utility model is a schematic diagram of the local structure of a heating unit in a heating device for warm rolling of molybdenum and molybdenum alloy thin plates.

[0021] In the figure, 1. support frame, 2. first motor, 3. screw lift, 4. connecting block, 5. connecting rod, 6. fixing block, 7. limiting rod, 8. fixing seat, 9. resistance furnace, 10. shell, 11. conveying roller, 12. first gear, 13. second motor, 14. fixing rod, 15. second gear, 16. bearing, 17. baffle. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0023] Example 1

[0024] The utility model is used for a heating device for warm rolling of molybdenum and molybdenum alloy thin plates, and the structure is as follows Figure 1 As shown, it includes a support frame 1, a heating unit, and a transport unit. The top of the support frame 1 is connected to the heating unit, and the heating unit is used to heat the molybdenum and molybdenum alloy thin plates. The interior of the support frame 1 and below the heating unit is provided with a transport unit, and the transport unit is used to transport the molybdenum and molybdenum alloy thin plates; the heating unit includes a first motor 2 arranged at both ends of the top of the support frame 1, that is, the first motor 2 is set to two, and the provision of two first motors 2 can improve stability and make the force more uniform. The output end of each first motor 2 is connected to a screw lift 3, and the first motor 2 can drive the screw The screw in the elevator 3 moves up and down, and the bottom end of each screw elevator 3 extends into the interior of the support frame 1. The bottom end of each screw elevator 3 is connected to a connecting block 4. The bottom of each connecting block 4 is hinged with a connecting rod 5, and the bottoms of the two connecting rods 5 are hinged with a resistance furnace 9. The up and down movement of the screw in the screw elevator 3 drives the resistance furnace 9 to move up and down, thereby adjusting the height of the resistance furnace 9. The resistance furnace 9 is used to heat molybdenum and molybdenum alloy thin plates. The transport unit is arranged below the resistance furnace 9. The resistance furnace 9 is connected to a power supply to energize it for later heating.

[0025] Example 2

[0026] On the basis of Example 1, Figure 2 and Figure 3As shown, the transport unit includes a hollow rectangular shell 10 connected to the support frame 1, and a plurality of conveying rollers 11 are arranged in sequence inside the shell 10 and along its length. One end of the plurality of conveying rollers 11 is sleeved with a bearing 16, and the bearing 16 is arranged in the side wall of the shell 10. Then, each conveying roller 11 rotates in the shell 10 through the bearing 16, which can not only reduce friction but also make the conveying roller 11 rotate more smoothly. The other ends of the plurality of conveying rollers 11 pass through a baffle 17 and one end of each conveying roller 11 passing through the baffle 17 is fixedly connected with a first gear 12, and each conveying roller 11 can rotate in the baffle 17. The two ends of the baffle 17 are respectively connected to the two short sides of the shell 10 and the baffle 17 is arranged parallel to the long side of the shell 10. Each first gear 12 is arranged between the baffle 17 and the side wall of the shell 10, and a second gear 15 is meshed between two adjacent first gears 12, that is, the first gear 12 and the second gear 15 are meshed. 5, the first gear 12 rotates to drive the second gear 15 meshing with it to rotate, and the second gear 15 drives the first gear 12 meshing on the other side to rotate, and so on, all the conveying rollers 11 rotate, thereby realizing the transportation function and transporting molybdenum and molybdenum alloy thin plates. A fixed rod 14 is sleeved at the center of each second gear 15, and the second gear 15 can rotate around the fixed rod 14, that is, the second gear 15 is rotatably connected with the fixed rod 14, one end of each fixed rod 14 is connected to the baffle 17, and the other end of each fixed rod 14 is connected to the side wall of the shell 10, and one of the conveying rollers 11 located at the end is connected to the output shaft of the second motor 13 near the end of the first gear 12, that is, only the second motor 13 is connected to the first conveying roller 11 to provide power to realize the rotation of all the conveying rollers 11, the output shaft of the second motor 13 passes through the shell 10, and the body of the second motor 13 is connected to the shell 10.

[0027] Example 3

[0028] On the basis of Example 2, Figure 4 As shown, a fixed seat 8 is connected to the top of the resistance furnace 9 and located in the middle of the two connecting rods 5. Two limit rods 7 are connected to the fixed seat 8. The two limit rods 7 are sleeved with a fixed block 6. The fixed block 6 is arranged on the top of the support frame 1. The resistance furnace 9 can drive the limit rod 7 to move up and down in the fixed block 6 during the up and down movement, thereby stabilizing the resistance furnace 9.

[0029] The working process of the heating device for warm rolling of molybdenum and molybdenum alloy thin plates of the utility model is as follows: the molybdenum and molybdenum alloy thin plates are placed on the conveying roller 11, the second motor 13 is started to drive the conveying roller 11 to rotate, and the first gear 12 and the second gear 15 are driven to mesh with each other, and the first gear 12 drives the second gear 15 to rotate, and so on, so that a plurality of conveying rollers 11 are rotated, and the molybdenum and molybdenum alloy thin plates are transported to a suitable position, and then the first motor 2 is started to cooperate with the screw lift 3, so that the screw in the screw lift 3 moves up and down and drives the resistance furnace 9 to move up and down, then the limit rod 7 moves up and down in the fixed block 6, and the resistance furnace 9 is moved to a suitable position above the molybdenum and molybdenum alloy thin plates and then stops, and then the power supply is turned on to energize the resistance furnace 9, so that the resistance furnace 9 is heated to 400°C, and then the molybdenum and molybdenum alloy thin plates are heated by the resistance furnace 9, so as to avoid the rolling cracking that is very easy to occur when the molybdenum and molybdenum alloy thin plates are rolled.

Claims

1. A heating device for warm rolling of molybdenum and molybdenum alloy thin plates, characterized in that: The invention comprises a support frame (1), wherein the two ends of the top of the support frame (1) are respectively connected to first motors (2), each of the first motors (2) is connected to a lead screw lift (3), the bottom end of each lead screw lift (3) extends into the interior of the support frame (1), the bottom end of each lead screw lift (3) is connected to a connecting block (4), the bottom of each connecting block (4) is connected to a connecting rod (5), the bottoms of two connecting rods (5) are connected to a resistance furnace (9), a transport unit is arranged below the resistance furnace (9), and the transport unit is arranged inside the support frame (1); The transport unit comprises a shell (10) connected to a support frame (1), a plurality of conveying rollers (11) are arranged in sequence inside the shell (10) and along its length, one end of the plurality of conveying rollers (11) is rotatably connected to a side wall of the shell (10), the other ends of the plurality of conveying rollers (11) pass through a baffle (17) and the other ends of the plurality of conveying rollers (11) are respectively connected to a first gear (12), the two ends of the baffle (17) are respectively connected to two short sides of the shell (10) and the baffle (17) is arranged parallel to the long side of the shell (10), and each of the first gears (12) is connected to the baffle (17). A gear (12) is arranged between the baffle (17) and the side wall of the housing (10); a second gear (15) is meshed between two adjacent first gears (12); a fixing rod (14) is sleeved at the center of each second gear (15); one end of each fixing rod (14) is connected to the baffle (17); the other end of each fixing rod (14) is connected to the side wall of the housing (10); a second motor (13) is connected to the end of one of the conveying rollers (11) located at the end close to the first gear (12); and the second motor (13) is connected to the housing (10).

2. The heating device for warm rolling of molybdenum and molybdenum alloy thin plates according to claim 1, characterized in that: One end of each conveying roller (11) connected to the housing (10) is sleeved with a bearing (16), and each bearing (16) is connected to the housing (10).

3. The heating device for warm rolling of molybdenum and molybdenum alloy thin plates according to claim 1, characterized in that: Two limit rods (7) are connected to the top of the resistance furnace (9) and located between the two connecting rods (5). Fixed blocks (6) are sleeved on the two limit rods (7). The fixed blocks (6) are arranged on the top of the support frame (1).

4. The heating device for warm rolling of molybdenum and molybdenum alloy thin plates according to claim 3, characterized in that: The resistance furnace (9) is connected to the two limit rods (7) via a fixing seat (8).

5. The heating device for warm rolling of molybdenum and molybdenum alloy thin plates according to claim 3, characterized in that: The connection between the connecting rod (5) and the resistance furnace (9) is hinged.

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