Device and process for hot-warm wave flat rolling of titanium-steel composite plate

Abstract

The invention relates to the technical field of metal composite material rolling, and discloses equipment and a process for hot-warm wave flat rolling of a titanium steel composite plate. The rolling assembly comprises a first rolling piece and a second rolling piece, and a plate is firstly subjected to corrugated rolling through the first rolling piece and then subjected to flat rolling through the second rolling piece; the straightening part is used for straightening the plate subjected to corrugated rolling; the conveying part is arranged on the rack, located above the first rolling part and used for stably conveying the heated plate; and the heating assembly comprises a heat preservation piece and two heating pieces, the two heating pieces are arranged on the first rolled piece and the second rolled piece correspondingly and used for heating the plate materials before rolling, and the heat preservation piece is arranged on the conveying piece and used for conducting heat preservation on the conveyed plate materials. According to the invention, the bonding strength of the composite plate is improved, the residual stress of the rolled plate is reduced, the phenomena of tail slippage, tail cracking, oxidation and the like of the plate are avoided, and the phenomenon of surface cracking caused by poor metal plasticity is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of rolling of metal composite materials, and particularly to an apparatus and process for thermo - warm wave - flat rolling of titanium - steel composite plates. Background Art

[0002] Rolling and compounding of metal composite materials has always been a research hotspot and has wide applications in military and civilian fields. However, due to the huge differences in mechanical properties, thermal expansion coefficients, microstructures, etc. between dissimilar metals, the problem of deformation incoordination caused thereby has always been a major difficulty in the field of rolling composite plates. And rolling metal materials at multiple passes with different temperatures can effectively improve the problem of deformation incoordination. Traditional hot rolling heats the metal composite material in a heating furnace and then conducts continuous multi - pass heating. The plate shape is poor, the residual stress is large, and there will be serious surface cracks when rolling metals with poor rolling plasticity. Existing research shows that wave - flat rolling has a positive effect on the bonding strength of composite plates, but there are phenomena such as the tail of the sheet material warping during the first - pass rolling, uneven temperature of the sheet material before the second - pass rolling and being greatly affected by the ambient temperature, and periodic cracks will appear on the surface when rolling metals with poor rolling plasticity ability, which has a greater negative impact on the quality and bonding strength of the composite plate after rolling.

[0003] Therefore, there is an urgent need for an apparatus and process for thermo - warm wave - flat rolling of titanium - steel composite plates to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an apparatus and process for thermo - warm wave - flat rolling of titanium - steel composite plates to solve the problems existing in the above - mentioned prior art.

[0005] To achieve the above purpose, the present invention provides the following solutions: The present invention provides an apparatus for thermo - warm wave - flat rolling of titanium - steel composite plates, including:

[0006] A frame;

[0007] A rolling assembly, including a first rolling member and a second rolling member. The first rolling member is arranged on the frame, and the second rolling member is arranged on one side of the frame. The sheet material first undergoes corrugated rolling through the first rolling member and then flat rolling through the second rolling member;

[0008] A straightening member, arranged between the first rolling member and the second rolling member, for straightening the sheet material that has undergone corrugated rolling;

[0009] A conveying member, arranged on the frame and above the first rolling member, for stably conveying the heated sheet material;

[0010] The heating assembly includes a heat preservation member and two heating members. The two heating members are respectively arranged on the first rolling member and the second rolling member and are used for heating the sheet material before rolling. The heat preservation member is arranged on the conveying member and is used for heat preservation of the sheet material during conveying.

[0011] An apparatus for hot-temperature wave-flat rolling of a titanium-steel composite plate according to the present invention, wherein the first rolling member includes:

[0012] A first track, installed on the frame, and the first track is driven by a first motor on the frame;

[0013] A first flat roll, located below the end of the first track, and a corrugated roll is arranged above the end of the first track. The sheet material on the first track is subjected to corrugated rolling through the corrugated roll and the first flat roll.

[0014] An apparatus for hot-temperature wave-flat rolling of a titanium-steel composite plate according to the present invention, wherein the second rolling member includes:

[0015] A support platform, on which a second track is installed, and the second track is driven by a second motor on the support platform;

[0016] A second flat roll, located below the end of the second track, and a third flat roll is arranged above the end of the second track. The sheet material on the second track is subjected to flat rolling through the second flat roll and the third flat roll.

[0017] An apparatus for hot-temperature wave-flat rolling of a titanium-steel composite plate according to the present invention, wherein the heating member includes:

[0018] A heating furnace, fixedly connected to the frame and the support platform. A heating furnace door is arranged on the heating furnace. A lifting electric cylinder is fixedly connected to the frame and the support platform, and the telescopic end of the lifting electric cylinder is fixedly connected to the heating furnace door;

[0019] The heating furnace is equipped with heating carbon rods, a displacement sensor, and a temperature sensor.

[0020] An apparatus for hot-temperature wave-flat rolling of a titanium-steel composite plate according to the present invention, wherein an air inlet and an air outlet are provided on the heating furnace located on the frame, and the air inlet is connected to a protective gas cylinder through a pipeline.

[0021] An apparatus for hot-temperature wave-flat rolling of a titanium-steel composite plate according to the present invention, wherein the conveying member includes:

[0022] The feeding device housing is fixedly connected with guide rods on both sides of the top end. The top ends of the guide rods penetrate through the top end of the frame. The top end of the frame is fixedly connected with a hydraulic cylinder. The telescopic end of the hydraulic cylinder penetrates through the frame and is fixedly connected with one end of a first pressing rod. The other end of the first pressing rod is fixedly connected with the middle part of the top end of the feeding device housing;

[0023] A number of feeding rollers are axially installed on the feeding device housing, and the feeding rollers are located above the first track.

[0024] According to a device for hot-temperature wave flat rolling of titanium steel composite plates provided by the present invention, the heat preservation member includes:

[0025] A number of heating resistance wires are respectively installed in a number of the feeding rollers;

[0026] The resistance wire support is fixedly connected to the feeding device housing, and the heating resistance wire is fixedly connected to the resistance wire support.

[0027] According to a device for hot-temperature wave flat rolling of titanium steel composite plates provided by the present invention, the straightening member includes:

[0028] The straightening machine frame has a third track installed inside;

[0029] A number of straightening rollers are installed on a second pressing rod through bearing seats, and the second pressing rod is slidably connected to the straightening machine frame.

[0030] According to a device for hot-temperature wave flat rolling of titanium steel composite plates provided by the present invention, it further includes two guiding devices, and the two guiding devices are respectively arranged on the frame and the support platform;

[0031] The guiding device includes a guiding platform fixedly connected to the frame and the support platform. Guide plates are slidably connected to both ends of the guiding platform, and a number of guiding rollers are installed on the guide plates;

[0032] Two guiding hydraulic cylinders are respectively installed on the frame and the support platform through brackets, and the telescopic ends of the guiding hydraulic cylinders are fixedly connected to the guide plates.

[0033] A method for hot-temperature wave flat rolling of titanium steel composite plates includes the following steps:

[0034] The sheet material is heated by one of the heating members and then conveyed to the first rolling member through the conveying member for corrugated rolling;

[0035] The temperature range for corrugated rolling is 800 - 1000 °C, and the heat preservation time is 2 h;

[0036] The sheet material after corrugated rolling is straightened by a straightening component and then conveyed to another heating component for heating and heat preservation, with the temperature range being 550 - 800 °C and the heat preservation time being 0.5 h - 1.5 h;

[0037] The sheet material after heating and heat preservation is conveyed onto the second rolling component for flat rolling.

[0038] Compared with the prior art, the present invention has the following advantages and technical effects:

[0039] An equipment and process for thermo - warm wave flat rolling of titanium - steel composite plates provided by the present invention, when in use, the sheet material is heated by one of the heating components and then conveyed by a conveying component onto the first rolling component for corrugated rolling. The sheet material after corrugated rolling is straightened by a straightening component and then conveyed to another heating component for heating and heat preservation. The sheet material after heating and heat preservation is conveyed onto the second rolling component for flat rolling. By reheating and heat - preserving for a period of time after one - pass corrugated rolling, the present invention can eliminate the residual stress generated in the first - pass rolling, ensure the temperature uniformity of the sheet material during the second - pass flat rolling, further improve the bonding strength of the composite plate, reduce the residual stress of the rolled sheet, and obtain a relatively flat plate shape. By means of the conveying component, the problems of tail slippage and cracking are solved, thereby reducing the oxidation phenomenon of the sheet material and solving the problems such as tail slippage and tail cracking in the current rolling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0041] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 is a rear view of the overall structure of the present invention;

[0043] Figure 3 is a schematic diagram of the structure of the heating furnace of the present invention;

[0044] Figure 4 is a schematic diagram of the structure of the guiding device of the present invention;

[0045] Figure 5 is a side view of the straightening component of the present invention;

[0046] Figure 6 is a front view of the straightening component of the present invention;

[0047] Figure 7 is a schematic diagram of the structure of the conveying component of the present invention;

[0048] Figure 8 Schematic diagram of the distribution of the heating resistance wires of the present invention;

[0049] Figure 9 Schematic diagram of the shear strength of the composite plate at different holding temperatures before the second pass rolling of the present invention;

[0050] Figure 10 Comparison diagram of the residual stress of the plates between the process of the present invention and the traditional process;

[0051] Figure 11 Comparison diagram of the shear strength in the rolling direction of the plate shape between the process of the present invention and the traditional process;

[0052] Among them, 1. Frame; 2. First track; 3. First motor; 4. First flat roll; 5. Corrugated roll; 6. Support platform; 7. Second track; 8. Second motor; 9. Second flat roll; 10. Third flat roll; 11. Heating furnace; 12. Heating furnace door; 13. Lifting electric cylinder; 14. Heating carbon rod; 15. Displacement sensor; 16. Temperature sensor; 17. Air inlet; 18. Exhaust port; 19. Pipeline; 20. Protection gas cylinder; 21. Feeding device housing; 22. Guide rod; 23. Hydraulic cylinder; 24. First press rod; 25. Feeding roll; 26. Heating resistance wire; 27. Resistance wire support; 28. Straightening machine frame; 29. Third track; 30. Straightening roll; 31. Bearing seat; 32. Second press rod; 33. Guide platform; 34. Guide plate; 35. Guide roll; 36. Guide hydraulic cylinder; 37. Support; 38. Feeding platform; 39. Feeding motor; 40. Feeding push rod. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0055] Refer to Figures 1-11 , the present invention provides a device for hot-temperature wave flat rolling of titanium-steel composite plates, including:

[0056] Frame 1;

[0057] The rolling assembly includes a first rolling piece and a second rolling piece. The first rolling piece is arranged on the frame 1, and the second rolling piece is arranged on one side of the frame 1. The sheet material first undergoes corrugated rolling by the first rolling piece and then flat rolling by the second rolling piece;

[0058] The straightening piece is arranged between the first rolling piece and the second rolling piece and is used to straighten the corrugated-rolled sheet material;

[0059] The conveying piece is arranged on the frame 1 and above the first rolling piece and is used to stably convey the heated sheet material;

[0060] The heating assembly includes a heat preservation piece and two heating pieces. The two heating pieces are respectively arranged on the first rolling piece and the second rolling piece and are used to heat the sheet material before rolling. The heat preservation piece is arranged on the conveying piece and is used to keep the sheet material being conveyed warm.

[0061] In an embodiment of the present invention, when in use, the sheet material is heated by one of the heating pieces and then conveyed by the conveying piece to the first rolling piece for corrugated rolling. The corrugated-rolled sheet material is straightened by the straightening piece and then conveyed to the other heating piece for heating and heat preservation. The sheet material after heating and heat preservation is conveyed to the second rolling piece for flat rolling.

[0062] As an alternative embodiment, the first rolling piece includes:

[0063] The first track 2 is installed on the frame 1 and is driven by the first motor 3 on the frame 1;

[0064] The first flat roller 4 is located below the end of the first track 2, and a corrugated roller 5 is arranged above the end of the first track 2. The sheet material on the first track 2 undergoes corrugated rolling through the corrugated roller 5 and the first flat roller 4.

[0065] In an embodiment of the present invention, through one-pass hot rolling, that is, after corrugated rolling, it is heated and kept warm for a period of time to eliminate the residual stress generated in the first-pass rolling.

[0066] As an alternative embodiment, the second rolling piece includes:

[0067] The support platform 6 is provided with a second track 7 installed thereon, and the second track 7 is driven by the second motor 8 on the support platform 6;

[0068] The second flat roller 9 is located below the end of the second track 7, and a third flat roller 10 is arranged above the end of the second track 7. The sheet material on the second track 7 undergoes flat rolling through the second flat roller 9 and the third flat roller 10.

[0069] In an embodiment of the present invention, the heating element continues to keep warm for a certain period of time to eliminate the residual stress inside the sheet material during one-pass rolling and straightening and to ensure uniform temperature of the sheet material during two-pass rolling. After one-pass rolling, a certain metallurgical bond has been formed. The sheet material is sent to two flat rolls for two-pass flat rolling. Since a metallurgical bond has been formed after one-pass rolling, there are no problems of tail slippage and warping during two-pass rolling.

[0070] As an alternative embodiment, the heating element includes:

[0071] A heating furnace 11, fixedly connected to the frame 1 and the support platform 6. A heating furnace door 12 is provided on the heating furnace 11. A lifting electric cylinder 13 is fixedly connected to the frame 1 and the support platform 6. The telescopic end of the lifting electric cylinder 13 is fixedly connected to the heating furnace door 12;

[0072] Heating carbon rods 14, a displacement sensor 15 and a temperature sensor 16 are installed on the heating furnace 11.

[0073] In an embodiment of the present invention, the heating furnace door 12 is controlled by the lifting electric cylinder 13. When the heating furnace door 12 touches the travel switch, the lifting electric cylinder 13 stops working to close the heating furnace door 12.

[0074] As an alternative embodiment, an air inlet 17 and an exhaust outlet 18 are provided on the heating furnace 11 located on the frame 1. The air inlet 17 is connected to a protective gas cylinder 20 through a pipeline 19.

[0075] In an embodiment of the present invention, the heating furnace 11 is provided with an air inlet 17 and an exhaust outlet 18. When introducing the protective gas, the exhaust outlet 18 is opened simultaneously to make the protective gas in the furnace in a flowing state and prevent potential safety hazards caused by excessive pressure in the furnace.

[0076] As an alternative embodiment, the conveying element includes:

[0077] A feed device housing 21, with guide rods 22 fixedly connected to both sides of the top end. The top ends of the guide rods 22 penetrate through the top end of the frame 1. A hydraulic cylinder 23 is fixedly connected to the top end of the frame 1. The telescopic end of the hydraulic cylinder 23 penetrates through the frame 1 and is fixedly connected to one end of a first pressing rod 24. The other end of the first pressing rod 24 is fixedly connected to the middle of the top end of the feed device housing 21;

[0078] A plurality of feed rollers 25 are axially installed on the feed device housing 21. The feed rollers 25 are located above the first track 2.

[0079] In an embodiment of the present invention, the hydraulic cylinder 23 is provided to drive the feed device housing 21 to move downward, pressing the feed rollers 25 against the sheet material, solving the problems of tail slippage and warping during the rolling process of the composite sheet.

[0080] As an alternative embodiment, the heat preservation member includes:

[0081] A plurality of heating resistance wires 26, which are respectively installed in a plurality of feeding rollers 25;

[0082] A resistance wire support 27, which is fixedly connected to the feeding device housing 21, and the heating resistance wire 26 is fixedly connected to the resistance wire support 27.

[0083] In an embodiment of the present invention, the heating resistance wire 26 is fixed on the resistance wire support 27 and does not rotate with the feeding roller 25. Heating is performed through the provided heating resistance wire 26 to keep the material plate warm, reducing the heat dissipation of the sheet material during transportation.

[0084] As an alternative embodiment, the straightening member includes:

[0085] A straightening machine frame 28, inside which a third track 29 is installed;

[0086] A plurality of straightening rollers 30, which are installed on a second pressure rod 32 through bearing seats 31, and the second pressure rod 32 is slidably connected to the straightening machine frame 28.

[0087] In an embodiment of the present invention, the third track 29 is three moving rollers, and the straightening rollers 30 are two, forming an upper-two-lower-three arrangement. Plastic deformation of the material occurs through controllable repeated bending, gradually correcting the original deformation and equalizing the internal stress. At the same time, it is also for having a suitable biting angle during the second rolling pass.

[0088] As an alternative embodiment, two guiding devices are further included, and the two guiding devices are respectively arranged on the frame 1 and the support platform 6;

[0089] The guiding device includes a guiding platform 33, which is fixedly connected to the frame 1 and the support platform 6. Guide plates 34 are slidably connected to both ends of the guiding platform 33, and a plurality of guiding rollers 35 are installed on the guide plates 34;

[0090] Two guiding hydraulic cylinders 36, which are respectively installed on the frame 1 and the support platform 6 through brackets 37, and the telescopic ends of the guiding hydraulic cylinders 36 are fixedly connected to the guide plates 34.

[0091] In an embodiment of the present invention, during transportation, the guiding device performs a guiding operation on the sheet material. A freely rotatable guiding roller 35 perpendicular to the sheet material transportation direction is arranged inside the guide plate 34 to ensure that the sheet material can still be transported forward when subjected to a centering clamping force. During the guiding process, through the action of the guiding hydraulic cylinder 36 and hydraulic devices such as an overflow valve and a pressure regulating valve, the guide plate 34 applies and maintains a certain clamping force on the sheet material without affecting the transportation of the sheet material. When the pressure exceeds a certain threshold, the hydraulic cylinder automatically discharges oil to achieve a safety purpose.

[0092] A method for hot-warm wave flat rolling of titanium-steel composite plates, comprising the following steps:

[0093] The sheet material is heated by one of the heating elements and then conveyed by the conveying element to the first rolling element for corrugated rolling;

[0094] The corrugated rolling temperature range is 800 - 1000 °C, and the heat preservation time is 2 h;

[0095] The sheet material after corrugated rolling is straightened by the straightening element and then conveyed to another heating element for heating and heat preservation, the temperature range is 550 - 800 °C, and the heat preservation time is 0.5 h - 1.5 h;

[0096] The sheet material after heating and heat preservation is conveyed to the second rolling element for flat rolling.

[0097] In an embodiment of the present invention, in use, the feeding motor 39 drives the feeding push rod 40 to push the slab sealed on the feeding platform 38 into the heating furnace 11 capable of passing protective gas. The heating furnace door 12 is controlled to close by the lifting electric cylinder 13, and then argon or other types of protective gas is introduced. After heating is completed, the sheet material is transported forward. The sheet material is conveyed by the feeding roller 25 and the first track 2, and at the same time, heat preservation is carried out by the heating resistance wire 26 during the conveying process, reducing the heat dissipation of the sheet material during the conveying process. The sheet material is fed into the corrugated roller 5 and the first flat roller 4 for one-pass rolling. After one-pass rolling, the sheet material after one-pass rolling is straightened by the straightening element. After straightening, the sheet material is transported to another heating furnace 11 to continue heat preservation for a certain time to eliminate the residual stress inside the sheet material during one-pass rolling and straightening and to ensure uniform temperature of the sheet material during two-pass rolling. Since a certain metallurgical bond has been formed after one-pass rolling, it is not necessary to introduce protective gas during the second heat preservation. The sheet material is sent to the second flat roller 9 and the third flat roller 10 for two-pass flat rolling.

[0098] In one embodiment of the present invention, the TC4 / 304 titanium-steel composite plate is prepared by this process method. Before rolling, the size of the TC4 plate is 100mm×60mm×2mm, and the size of the 304 stainless steel plate is 100mm×60mm×3mm. A series of performance tests are carried out on the rolled titanium-steel composite plate, and the optimal rolling parameters are obtained. Using the hot-temperature wave-flat rolling composite plate process to roll the TC4 / 304 composite plate effectively avoids the difference in the temperature of the sheet material with the environment during continuous rolling. The shear strength in the rolling direction finally reaches an average of 355 MPa at the second-pass heating temperature of 600 °C, with small strength differences and uniform strength distribution. Rolling the second pass after reheating after the first pass can effectively reduce the occurrence of cracks on the TC4 side. Through SEM and surface scanning of the shear cross-section, it can be seen that there is a large area of Ti residue and a large number of dimples formed on the steel side. Through the residual stress test of the rolled composite plate, the results show that the overall average residual stress of the composite plate prepared by this process is reduced compared with the traditional rolling method, especially at the composite interface, which is reduced by about 30%. And compared with the traditional rolling method, the flatness of the plate shape and the bonding strength are improved to a certain extent. It is found through experiments that this process method is especially suitable for metals with poor plasticity, such as TC4. It is found in the experiment that due to the existence of the corrugated interface during the wave-flat rolling of TC4, TC4 will have a periodic large deformation area. Also, because the plasticity of TC4 is poor after the temperature drops, and the temperature drop is large during the second-pass rolling in the traditional method, periodic cracks will be formed in the surface area of TC4. These cracks seriously affect the strength and fatigue performance of the composite plate. During the rolling by this process, since the heat preservation operation is carried out before the second pass, the plasticity of TC4 before the second pass is improved, perfectly solving the problem of crack generation. At the same time, the temperature uniformity before the second pass is ensured, and the strength distribution of the final sheet material is also made uniform.

[0099] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0100] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An apparatus for hot-temperature wave flat rolling of titanium-steel composite plates, characterized in that, Including: Frame (1); Rolling assembly, including a first rolling piece and a second rolling piece. The first rolling piece is arranged on the frame (1), and the second rolling piece is arranged on one side of the frame (1). The sheet material is first subjected to corrugated rolling by the first rolling piece and then subjected to flat rolling by the second rolling piece; Straightening piece, arranged between the first rolling piece and the second rolling piece, for straightening the corrugated-rolled sheet material; Conveying piece, arranged on the frame (1) and above the first rolling piece, for stably conveying the heated sheet material; Heating assembly, including a heat preservation piece and two heating pieces. The two heating pieces are respectively arranged on the first rolling piece and the second rolling piece, for heating the sheet material before rolling. The heat preservation piece is arranged on the conveying piece for heat-preserving the conveyed sheet material.

2. The equipment for hot-temperature wave flat rolling of titanium-steel composite plates according to claim 1, characterized in that, The first rolling piece includes: First track (2), installed on the frame (1), and the first track (2) is driven by a first motor (3) on the frame (1); First flat roll (4), located below the end of the first track (2). A corrugated roll (5) is arranged above the end of the first track (2). The sheet material on the first track (2) is subjected to corrugated rolling by the corrugated roll (5) and the first flat roll (4).

3. The equipment for hot-temperature wave flat rolling of titanium-steel composite plates according to claim 1, characterized in that, The second rolling piece includes: Support platform (6), on which a second track (7) is installed, and the second track (7) is driven by a second motor (8) on the support platform (6); Second flat roll (9), located below the end of the second track (7). A third flat roll (10) is arranged above the end of the second track (7). The sheet material on the second track (7) is subjected to flat rolling by the second flat roll (9) and the third flat roll (10).

4. An apparatus for hot-temperature wave flat rolling of a titanium-steel composite plate according to claim 3, characterized in that, The heating piece includes: Heating furnace (11), fixedly connected to the frame (1) and the support platform (6). A heating furnace door (12) is arranged on the heating furnace (11). A lifting electric cylinder (13) is fixedly connected to the frame (1) and the support platform (6). The telescopic end of the lifting electric cylinder (13) is fixedly connected to the heating furnace door (12); The heating furnace (11) is equipped with heating carbon rods (14), a displacement sensor (15) and a temperature sensor (16).

5. The equipment for hot-temperature wave flat rolling of titanium-steel composite plates according to claim 4, characterized in that: An air inlet (17) and an exhaust port (18) are provided on the heating furnace (11) located on the frame (1). The air inlet (17) is connected to a protective gas cylinder (20) through a pipeline (19).

6. The equipment for hot-temperature wave flat rolling of titanium-steel composite plates according to claim 2, characterized in that, The conveying piece includes: Feeding device housing (21), with guide rods (22) fixedly connected to both sides of the top end. The top ends of the guide rods (22) penetrate through the top end of the frame (1). A hydraulic cylinder (23) is fixedly connected to the top end of the frame (1). The telescopic end of the hydraulic cylinder (23) penetrates through the frame (1) and is fixedly connected to one end of a first pressing rod (24). The other end of the first pressing rod (24) is fixedly connected to the middle of the top end of the feeding device housing (21); A plurality of feeding rollers (25) are axially installed on the feeding device housing (21), and the feeding rollers (25) are located above the first track (2).

7. The equipment for hot-temperature wave flat rolling of titanium-steel composite plates according to claim 6, characterized in that, The heat preservation member includes: A plurality of heating resistance wires (26) are respectively installed in a plurality of the feeding rollers (25); A resistance wire support (27) is fixedly connected to the feeding device housing (21), and the heating resistance wire (26) is fixedly connected to the resistance wire support (27).

8. The device for hot-temperature wave leveling rolling of titanium-steel composite plates according to claim 1, characterized in that, The straightening member includes: A straightening machine frame (28) with a third track (29) installed inside; A plurality of straightening rollers (30) are installed on a second screw-down rod (32) through a bearing block (31), and the second screw-down rod (32) is slidably connected to the straightening machine frame (28).

9. The equipment for hot-temperature wave flat rolling of titanium-steel composite plates according to claim 3, characterized in that: It further includes two guiding devices which are respectively arranged on the frame (1) and the support platform (6); The guiding device includes a guiding platform (33) fixedly connected to the frame (1) and the support platform (6). Both ends of the guiding platform (33) are slidably connected with guiding plates (34), and a plurality of guiding rollers (35) are installed on the guiding plates (34); Two guiding hydraulic cylinders (36) are respectively installed on the frame (1) and the support platform (6) through brackets (37), and the telescopic ends of the guiding hydraulic cylinders (36) are fixedly connected to the guiding plates (34).

10. A method for hot-warm wave flat rolling of titanium-steel composite plates, applicable to the equipment for hot-warm wave flat rolling of titanium-steel composite plates described in claim 1, characterized in that, It includes the following steps: The sheet material is heated by one of the heating members and then conveyed by the conveying member to the first rolling member for corrugated rolling; The corrugated rolling temperature range is 800 - 1000 °C, and the heat preservation time is 2 h; The sheet material after corrugated rolling is straightened by the straightening member and then conveyed to another heating member for heating and heat preservation, the temperature range is 550 - 800 °C, and the heat preservation time is 0.5 h - 1.5 h; The sheet material after heating and heat preservation is conveyed to the second rolling member for flat rolling.

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