A clad metal plate casting and rolling integrated processing device and a processing method

Abstract

The application discloses a kind of composite metal plate casting and rolling integrated processing device and processing method, including slit widening mechanism and first roller mechanism, including following steps S1.In horizontal centrifugal casting machine, good toughness characteristic steel liquid, high hardness steel liquid, good toughness steel liquid are poured in sequence, and then centrifugal casting is carried out, three-layer seamless steel pipe is casted;S2.The casted steel pipe is sent to gantry plasma cutting machine by transport roller, and the steel pipe is cut from head to tail in axial direction;S3.The cut steel pipe is sent to slit widening mechanism, and slit is widened;S4.The steel pipe sequentially passes through first roller mechanism, second roller mechanism, third roller mechanism, and slit is gradually widened, and the steel pipe is gradually flattened and rolled into three-layer composite steel plate;S5.The steel plate made by above steps is punched to make the shape of tool, and then it is polished to be sharp, that is, three-layer stainless steel tool with high toughness and high strength is obtained.

Description

Technical Field

[0001] This invention relates to the field of composite material technology, specifically to an integrated casting and rolling processing device and method for composite metal plates. Background Technology

[0002] To address the issue of chipping on the edge of high-carbon, high-chromium stainless steel knives during chopping due to their high hardness, a multi-layered composite stainless steel knife material has been developed. This material sandwiches a layer of hard, high-carbon stainless steel in the middle as the cutting edge, with a layer of high-toughness stainless steel added to both sides for reinforcement and support. This effectively protects the high-hardness edge and improves its toughness.

[0003] Currently, the main methods for preparing composite steel plates are explosive welding and rolling. Explosive welding has significant drawbacks, including operational hazards and severe pollution, and the composite surface is wavy, affecting some performance. Rolling, on the other hand, results in a distinct interface between the alloy layers, with a very obvious difference in microstructure between the two metal layers, leading to suboptimal bonding at the alloy interface. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings in the prior art by providing an integrated casting and rolling processing device and method for composite metal plates.

[0005] A composite metal plate casting and rolling integrated processing device includes a kerf widening mechanism and a first roll mechanism;

[0006] The kerf widening mechanism includes a widening mechanism upper cover, which is fixedly connected to the widening mechanism frame by mechanism bolts. The upper two sides of the widening mechanism upper cover are fixed between the widening mechanism operating end frame and the widening mechanism motor end frame by mechanism upper cover fixing bolts. The widening mechanism operating end frame and the widening mechanism motor end frame are fixedly connected by frame connecting bolts and fixed to the ground by grounding bolts. Multiple mechanism side wheels are rotatably connected to both sides of the widening mechanism frame by side wheel pins. The widening mechanism frame has a wedge-shaped structure, and the mechanism lower wheel is rotatably connected to the lower end of the widening mechanism frame by mechanism lower wheel pins.

[0007] Both sides of the central boss of the two sets of mechanism lower rollers are rotatably connected to the support of the lower roller of the widening mechanism via mechanism lower roller bearings. The mechanism lower roller bearings are tapered roller bearings. The outer side of the support of the lower roller of the widening mechanism is provided with the first and second shims of the mechanism lower rollers to fix the mechanism lower roller bearings. The mechanism lower roller bearing nuts are tightened and fixed on the mechanism lower rollers and fit against the mechanism lower roller second shims. The mechanism lower roller passes through the motor end frame of the widening mechanism and is fixedly connected to the external motor. The central boss of the mechanism lower rollers mates with the mechanism lower wheel.

[0008] The lower roller support mechanism is fixed between the operating end frame of the widening mechanism and the motor end frame of the widening mechanism by bolts, and the lower roller support of the widening mechanism is fixed on the lower roller support mechanism.

[0009] The operating end frame and the motor end frame of the widening mechanism have four mechanism side roller fixing slots. The two sides of the central boss of the mechanism side roller are equipped with mechanism side roller bearings. The mechanism side roller bearings are tapered roller bearings. The outer ring of the mechanism side roller bearings is fixedly connected to the mechanism side roller support. The mechanism side roller bearing gasket is located below the mechanism side roller support at the lower end of the mechanism side roller. The mechanism side roller bearing gasket is fixed to the mechanism side roller by tightening the mechanism side roller nut. The mechanism side roller bearing above the mechanism side roller is fixed inside the mechanism side roller support by tightening the mechanism side roller nut. The mechanism side roller support is fixed inside the mechanism side roller fixing slot. The upper end of the mechanism side roller is fixedly connected to the external motor.

[0010] The first roll mechanism includes a first roll frame. Two mirror-shaped first roll frames are fixed together by frame connecting bolts and grounded to the ground by grounding bolts. The two sides of the first lower roll boss are rotatably connected to the lower roll bearing support through roll bearings. The right end of the lower roll bearing support is provided with a first roll gasket and a second roll gasket that can fix the roll bearing. The roll nut is fixed to the outside of the first lower roll and abuts against the outside of the second roll gasket. A lower roll gasket is fixed below the lower roll bearing support. The lower roll gasket has a through hole and is fixed to the first roll frame by gasket connecting bolts. An inter-roll gasket is provided above the lower roll bearing support. An upper roll gasket with a circular groove is provided above the upper roll bearing support. An upper roll adjusting screw is provided above the upper roll gasket. The upper roll adjusting screw is tightened on the first roll frame, and the lower end of the upper roll adjusting screw contacts the upper roll gasket to fix the upper roll bearing support.

[0011] The first upper roller is a concave wheel, and the first lower roller is a convex wheel. The first upper roller and the first lower roller work together to bend the steel pipe into an arc.

[0012] A method for integrated casting and rolling of composite metal plates includes the following steps:

[0013] S1. In a horizontal centrifugal casting machine, molten steel with good toughness, molten steel with high hardness, and molten steel with good toughness are poured in sequence and centrifugal casting is carried out to cast a three-layer seamless steel pipe.

[0014] S2. The cast steel pipe is transported to the gantry-type plasma cutting machine via conveyor rollers, and the steel pipe is cut axially from beginning to end;

[0015] S3. Transport the cut steel pipe to the slit widening mechanism to widen the slit;

[0016] S4. The steel pipe is passed through the first rolling mill, the second rolling mill, and the third rolling mill in sequence, and the cut is gradually widened to flatten the steel pipe into a three-layer composite steel plate.

[0017] The beneficial effects of this invention are:

[0018] Centrifugal casting of seamless three-layer steel pipes can produce composite steel pipes with relatively good alloy bonding surfaces. This process is currently mature, has minimal environmental pollution, and is relatively safe and convenient to operate. The seamless steel pipes are then hot-rolled into three-layer composite steel plates through a cutting and hot-rolling process. Hot rolling refines the steel plate's grain size, improving its performance. The three-layer composite steel plates produced using this process exhibit tight bonding between different steel materials, with no obvious delamination, and small grain size, resulting in good material properties. Knives made from these composite steel plates possess both high hardness and toughness, meeting daily usage requirements, improving the sharpness and toughness of the tools, and extending their service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 A schematic diagram showing the coordination of the mechanism's side roller, side wheel, lower wheel, and lower roller;

[0021] Figure 3 Schematic diagram of the kerf widening mechanism;

[0022] Figure 4 Exploded view of the kerf widening mechanism;

[0023] Figure 5 This is a schematic diagram of the first roll mechanism.

[0024] Figure 6 This is an exploded view of the first roll mechanism.

[0025] In the picture:

[0026] 1. Horizontal centrifugal casting machine; 2. Conveying roller; 3. Gantry plasma cutting machine; 4. Cutting kerf widening mechanism; 5. First roll mechanism; 6. Second roll mechanism; 7. Third roll mechanism; 8. Widening mechanism upper cover; 9. Widening mechanism frame; 10. Mechanism bolt; 11. Mechanism side wheel; 12. Side wheel pin; 13. Mechanism lower wheel; 14. Mechanism lower roller; 15. Mechanism side roller; 16. Widening mechanism operating end frame; 17. Widening mechanism motor end frame; 18. Frame connecting bolt; 19. Grounding bolt; 20. Mechanism upper cover fixing bolt; 21. Mechanism lower roller support mechanism; 22. Widening mechanism lower roller support. 23. Lower roller bearing of mechanism; 24. First shim of lower roller of mechanism; 25. Second shim of lower roller of mechanism; 26. Nut of lower roller bearing of mechanism; 27. Fixing groove of side roller of mechanism; 28. Support of side roller of mechanism; 29. ​​Bearing of side roller of mechanism; 30. Shim of side roller of mechanism; 31. Nut of side roller of mechanism; 32. First roller frame; 33. First upper roller; 34. First lower roller; 35. Roll bearing; 36. Support of lower roller bearing; 37. First shim of roll; 38. Second shim of roll; 39. Lower shim of roll; 40. Shim between rolls; 41. Support of upper roller bearing; 42. Upper shim of roll; 43. Adjusting screw of upper roller. Detailed Implementation

[0027] Referring to the attached drawings, a composite metal plate casting and rolling integrated processing device includes a kerf widening mechanism 4 and a first roll mechanism 5;

[0028] The kerf widening mechanism 4 includes a widening mechanism upper cover 8, a widening mechanism frame 9, a mechanism bolt 10, a mechanism side wheel 11, a side wheel pin 12, a mechanism lower wheel 13, a mechanism lower roller 14, a mechanism side roller 15, a widening mechanism operating end frame 16, a widening mechanism motor end frame 17, a frame connecting bolt 18, a grounding bolt 19, a mechanism upper cover fixing bolt 20, a mechanism lower roller support mechanism 21, a widening mechanism lower roller support 22, a mechanism lower roller bearing 23, a mechanism lower roller first washer 24, a mechanism lower roller second washer 25, a mechanism lower roller bearing nut 26, a mechanism side roller fixing groove 27, a mechanism side roller support 28, a mechanism side roller bearing 29, a mechanism side roller bearing washer 30, and a mechanism side roller nut 31;

[0029] The upper cover 8 of the widening mechanism is fixedly connected to the frame 9 of the widening mechanism by mechanism bolts 10. The upper sides of the upper cover 8 are fixed between the operating end frame 16 and the motor end frame 17 of the widening mechanism by mechanism upper cover fixing bolts 20. The operating end frame 16 and the motor end frame 17 of the widening mechanism are fixedly connected by frame connecting bolts 18 and fixed to the ground by grounding bolts 19. Multiple mechanism side wheels 11 are rotatably connected to both sides of the widening mechanism frame 9 by side wheel pins 12. The widening mechanism frame 9 has a wedge-shaped structure. The lower mechanism wheel 13 is rotatably connected to the lower end of the widening mechanism frame 9 by mechanism lower wheel pins.

[0030] Both sides of the central boss of the two sets of mechanism lower rollers 14 are rotatably connected to the lower roller support 22 of the widening mechanism via mechanism lower roller bearings 23. The mechanism lower roller bearings 23 are tapered roller bearings, which can withstand large axial forces. The outer side of the lower roller support 22 of the widening mechanism is provided with mechanism lower roller first washer 24 and mechanism lower roller second washer 25 to fix mechanism lower roller bearing 23. The mechanism lower roller bearing nut 26 is tightened and fixed on mechanism lower roller 14 and fits against mechanism lower roller second washer 25; it is used to constrain mechanism lower roller bearing 23. The mechanism lower roller 14 passes through the widening mechanism motor end frame 17 and is fixedly connected to the external motor. The central boss of mechanism lower roller 14 cooperates with mechanism lower wheel 13.

[0031] The lower roller support mechanism 21 is fixed between the operating end frame 16 and the motor end frame 17 of the widening mechanism by bolts. The lower roller support 22 of the widening mechanism is fixed on the lower roller support mechanism 21 and provides support for the lower roller 14 of the mechanism.

[0032] Four mechanism side roller fixing slots 27 are provided on the operating end frame 16 and the motor end frame 17 of the widening mechanism. The dimensions of the mechanism side roller fixing slots 27 are the same as the outer dimensions of the mechanism side roller support 28. Mechanism side roller bearings 29 are provided on both sides of the central boss of the mechanism side roller 15. The mechanism side roller bearings 29 are tapered roller bearings, which provide support and fixation for the mechanism side roller 15. The outer ring of the mechanism side roller bearings 29 is fixedly connected to the mechanism side roller support 28. A mechanism side roller bearing washer 30 is provided below the mechanism side roller support 28 at the lower end of the mechanism side roller 15. The side roller bearing 29 is used to support the side roller bearing 29. The side roller bearing 29 is tightened and fixed to the side roller 15 by the side roller nut 31. The side roller bearing 29 above the side roller 15 is tightened and fixed inside the side roller support 28 by the side roller nut 31. The side roller support 28 is fixed inside the side roller fixing groove 27. The upper and lower side roller bearings 29 together provide support and fixation for the side roller 15. The upper end of the side roller 15 is fixedly connected to an external motor.

[0033] The steel pipe is first conveyed into the widening mechanism 4 by the combined action of the lower roller 14 and the lower wheel 13 of the mechanism, and then continuously conveyed backward. The side roller 15 and the side wheel 11 of the mechanism work together to provide the force for conveying backward. The steel pipe slit is opened by the side wheel group (the side wheel group refers to a group of side wheels 11 located symmetrically on the upper cover 8 of the mechanism) whose lateral dimension is larger than the inner diameter of the steel pipe. The wedge-shaped fixing mechanism at the upper end of the upper cover 8 of the mechanism can also provide part of the work of opening the slit.

[0034] The first roll mechanism 5 includes a first roll frame 32, a first upper roll 33, a first lower roll 34, a roll bearing 35, a lower roll bearing support 36, a first roll shim 37, a second roll shim 38, a lower roll shim 39, an inter-roll shim 40, an upper roll bearing support 41, an upper roll shim 42, and an upper roll adjusting screw 43.

[0035] Two mirror-shaped first roll frames 32 are fixed together by frame connecting bolts 18 and grounded to the ground by grounding bolts 19. The two sides of the boss of the first lower roll 34 are rotatably connected to the lower roll bearing support 36 via roll bearings 35. The right end of the lower roll bearing support 36 is provided with a first roll washer 37 and a second roll washer 38 for fixing the roll bearing 35. A roll nut is fixed to the outside of the first lower roll 34 and abuts against the outside of the second roll washer 38. A lower roll washer 39 is fixed below the lower roll bearing support 36, and the lower roll washer 39 has a through hole. The underroll shim 39 is fixed to the first roll frame 32 by shim connecting bolts. The roll shim 40 is provided above the lower roll bearing support 36. The gap between the first upper roll 33 and the first lower roll 34 can be changed by replacing the roll shims 40 of different thicknesses. The upper roll bearing support 41 is provided with an upper roll shim 42 with a circular groove. The upper roll adjusting screw 43 is provided above the upper roll shim 42. The upper roll adjusting screw 43 is tightened on the first roll frame 32, and the lower end of the upper roll adjusting screw 43 contacts the upper roll shim 42 to fix the upper roll bearing support 41.

[0036] The first upper roller 33 is a concave roller, and the first lower roller 34 is a convex roller. The first upper roller 33 and the first lower roller 34 work together to bend the steel pipe into a large arc within a relatively narrow width, which facilitates subsequent rolling processing.

[0037] Furthermore, it also includes a second roll mechanism 6 and a third roll mechanism 7. The second roll mechanism 6 and the third roll mechanism 7 have the same structure as the first roll mechanism 5, the only difference being the size and shape of the first upper roll 33 and the first lower roll 34. The first upper roll 33 of the second roll mechanism 6 is still a concave wheel, and the first lower roll 34 of the second roll mechanism 6 is convex. The first upper roll 33 and the first lower roll 34 of the third roll mechanism 7 are cylindrical rollers used to flatten the steel pipe.

[0038] Furthermore, the upper end of the widening mechanism cover 8 is provided with a wedge-shaped fixing mechanism.

[0039] A method for integrated casting and rolling of composite metal plates includes the following steps:

[0040] S1. In a horizontal centrifugal casting machine 1, molten steel with good toughness, molten steel with high hardness, and molten steel with good toughness are poured in sequence and centrifugal casting is performed to cast a three-layer seamless steel pipe.

[0041] S2. The cast steel pipe is transported to the gantry-type plasma cutting machine 3 via the transport roller 2, and the steel pipe is cut axially from beginning to end;

[0042] S3. The cut steel pipe is transported to the slit widening mechanism 4 to widen the slit; so that a wider roller at the first rolling mechanism 5 can enter the steel pipe for rolling.

[0043] S4. The steel pipe is passed through the first rolling mill mechanism 5, the second rolling mill mechanism 6, and the third rolling mill mechanism 7 in sequence, gradually widening the slit and gradually flattening the steel pipe into a three-layer composite steel plate.

Claims

1. A composite metal plate casting and rolling integrated processing device, characterized in that: It includes a slit widening mechanism (4) and a first roll mechanism (5); The kerf widening mechanism (4) includes a widening mechanism upper cover (8), a widening mechanism frame (9), a mechanism bolt (10), a mechanism side wheel (11), a side wheel pin (12), a mechanism lower wheel (13), a mechanism lower roller (14), a mechanism side roller (15), a widening mechanism operating end frame (16), a widening mechanism motor end frame (17), a frame connecting bolt (18), a grounding bolt (19), a mechanism upper cover fixing bolt (20), a mechanism lower roller support mechanism (21), a widening mechanism lower roller support (22), a mechanism lower roller bearing (23), a mechanism lower roller first washer (24), a mechanism lower roller second washer (25), a mechanism lower roller bearing nut (26), a mechanism side roller fixing groove (27), a mechanism side roller support (28), a mechanism side roller bearing (29), a mechanism side roller bearing washer (30), and a mechanism side roller nut (31). The upper cover (8) of the widening mechanism is fixedly connected to the frame (9) of the widening mechanism by the mechanism bolts (10). The upper two sides of the upper cover (8) of the widening mechanism are fixed between the operating end frame (16) and the motor end frame (17) of the widening mechanism by the upper cover fixing bolts (20). The operating end frame (16) and the motor end frame (17) of the widening mechanism are fixedly connected by the frame connecting bolts (18) and fixed to the ground by the grounding bolts (19). Multiple side wheels (11) of the mechanism are rotatably connected to both sides of the frame (9) of the widening mechanism by the side wheel pins (12). The frame (9) of the widening mechanism is a wedge-shaped structure. The lower wheel (13) of the mechanism is rotatably connected to the lower end of the frame (9) of the widening mechanism by the lower wheel pin. Both sides of the central boss of the two sets of mechanism lower rollers (14) are rotatably connected to the lower roller support (22) of the widening mechanism through mechanism lower roller bearings (23). The mechanism lower roller bearings (23) are tapered roller bearings. The outer side of the lower roller support (22) of the widening mechanism is provided with mechanism lower roller first washer (24) and mechanism lower roller second washer (25) to fix mechanism lower roller bearings (23). The mechanism lower roller bearing nut (26) is tightened and fixed on mechanism lower roller (14) and fits against mechanism lower roller second washer (25). The mechanism lower roller (14) passes through the motor end frame (17) of the widening mechanism and is fixedly connected to the external motor. The central boss of mechanism lower roller (14) cooperates with mechanism lower wheel (13). The lower roller support mechanism (21) of the mechanism is fixed between the operating end frame (16) of the widening mechanism and the motor end frame (17) of the widening mechanism by bolts respectively, and the lower roller support (22) of the widening mechanism is fixed on the lower roller support mechanism (21); Four mechanism side roller fixing slots (27) are opened on the operation end frame (16) of the widening mechanism and the motor end frame (17) of the widening mechanism. The mechanism side roller bearings (29) are provided on both sides of the central boss of the mechanism side roller (15). The mechanism side roller bearings (29) are tapered roller bearings. The outer ring of the mechanism side roller bearings (29) is fixedly connected to the mechanism side roller support (28). The mechanism side roller bearing gasket (30) is provided below the mechanism side roller support (28) at the lower end of the mechanism side roller (15). The mechanism side roller bearing gasket (30) is tightened and fixed to the mechanism side roller (15) by the mechanism side roller nut (31). The mechanism side roller bearing (29) above the mechanism side roller (15) is tightened and fixed inside the mechanism side roller support (28) by the mechanism side roller nut (31). The mechanism side roller support (28) is fixed inside the mechanism side roller fixing slot (27). The upper end of the mechanism side roller (15) is fixedly connected to the external motor. The first roll mechanism (5) includes a first roll frame (32), a first upper roll (33), a first lower roll (34), a roll bearing (35), a lower roll bearing support (36), a first roll shim (37), a second roll shim (38), a lower roll shim (39), an inter-roll shim (40), an upper roll bearing support (41), an upper roll shim (42), and an upper roll adjusting screw (43). Two mirror-shaped first roll frames (32) are fixed together by frame connecting bolts (18) and grounded to the ground by grounding bolts (19). The two sides of the boss of the first lower roll (34) are rotatably connected to the lower roll bearing support (36) through roll bearings (35). The right end of the lower roll bearing support (36) is provided with a first roll washer (37) and a second roll washer (38) for fixing the roll bearing (35). The roll nut is fixed to the outside of the first lower roll (34) and abuts against the outside of the second roll washer (38). The lower roll washer is fixed below the lower roll bearing support (36). (39) A through hole is provided on the lower roll pad (39). The lower roll pad (39) is fixed to the first roll frame (32) by the pad connecting bolt. A roll pad (40) is provided above the lower roll bearing support (36). A roll upper pad (42) with a circular groove is provided above the upper roll bearing support (41). An upper roll adjusting screw (43) is provided above the upper roll pad (42). The upper roll adjusting screw (43) is tightened on the first roll frame (32), and the lower end of the upper roll adjusting screw (43) contacts the roll upper pad (42) to fix the upper roll bearing support (41). The first upper roller (33) is a concave roller, and the first lower roller (34) is a convex roller. The first upper roller (33) and the first lower roller (34) work together to bend the steel pipe into an arc.

2. The composite metal plate casting and rolling integrated processing device according to claim 1, characterized in that: It also includes a second roll mechanism (6) and a third roll mechanism (7). The second roll mechanism (6) has the same structure as the third roll mechanism (7) and the first roll mechanism (5). The first upper roll (33) of the second roll mechanism (6) is still a concave wheel, the first lower roll (34) of the second roll mechanism (6) is convex, and the first upper roll (33) and the first lower roll (34) of the third roll mechanism (7) are cylindrical rollers.

3. The composite metal plate casting and rolling integrated processing device according to claim 1, characterized in that: The upper end of the cover (8) of the widening mechanism is provided with a wedge-shaped fixing mechanism.

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