CN113020261A - Rolling method of metal composite plate with prefabricated corrugated interface - Google Patents

Rolling method of metal composite plate with prefabricated corrugated interface Download PDF

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Publication number
CN113020261A
CN113020261A CN202110316951.XA CN202110316951A CN113020261A CN 113020261 A CN113020261 A CN 113020261A CN 202110316951 A CN202110316951 A CN 202110316951A CN 113020261 A CN113020261 A CN 113020261A
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Prior art keywords
rolling
corrugated
composite plate
roller
metal composite
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CN202110316951.XA
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冯光
付晓斌
王靓
张恒
郜豪杰
申依伦
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Taiyuan University of Technology
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Taiyuan University of Technology
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Priority to CN202110316951.XA priority Critical patent/CN113020261A/en
Publication of CN113020261A publication Critical patent/CN113020261A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/38Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004Heating the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B47/00Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/38Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B21B2001/386Plates

Abstract

The invention relates to the technical field of metal composite plate preparation, in particular to a rolling method of a metal composite plate with a prefabricated corrugated interface, and aims to solve the technical problem that the interface bonding strength of the metal composite plate rolled by the existing method is low. The following technical scheme is adopted: respectively pre-corrugating the base plate and the composite plate on a corrugating roller by using a unidirectional corrugating roller and a crossed corrugating roller to enable one side of a plate blank combination surface to be a unidirectional corrugating surface and the other side to be a crossed corrugating surface, then stacking the base plate blank and the composite plate blank, and carrying out flat rolling under the condition of lower reduction rate. Compared with the traditional rolling method, the method has the advantages of simple blank manufacturing, small required reduction rate and low energy consumption, can reduce residual stress, control panel warping, especially can improve bonding strength, and realize wider metallurgical bonding between two metals.

Description

Rolling method of metal composite plate with prefabricated corrugated interface
Technical Field
The invention relates to the technical field of metal composite plate preparation, in particular to a rolling method of a metal composite plate with a prefabricated corrugated interface.
Background
The metal composite plate is a composite material which is processed and overlapped by two or more layers of heterogeneous metals through a special process to realize interface metallurgical bonding. The components of the metal composite plate are independent from each other, but the final performance of the material is not simply superposed between the components, but is extremely important to be improved. By selecting proper materials and reasonable process design, the material meeting different conditions can be produced, such as impact resistance, corrosion resistance, abrasion resistance, high thermal conductivity, electric conductivity and the like. The metal laminar composite material has the following advantages by reasonable design: rare metal and noble metal are saved; the material has excellent high temperature resistance and corrosion resistance; the use weight of the material is reduced under the condition of ensuring the application occasion of the material; meets different physical and mechanical properties such as electric conduction, heat conduction, wear resistance and the like. Therefore, the method is widely applied to the industrial fields of petroleum, chemical industry, ships, metallurgy, electric power, water conservancy, traffic, environmental protection, food, pharmacy and the like.
The preparation process of the metal composite plate is relatively complex, and the production process is a central link of the preparation process. The processing method of the layered metal composite plate can be divided into three modes of solid-solid phase compounding, solid-liquid phase compounding and liquid-liquid phase compounding according to different states of the composite components. The solid-solid phase compounding method mainly comprises a rolling compounding method, an extrusion compounding method, an explosion welding compounding method, a diffusion welding method, an explosion welding and rolling compounding method and the like; the solid-liquid phase compounding method mainly comprises a casting-rolling method, a reverse solidification method, a compound casting method, a spray-plating compounding method and the like; liquid phase-liquid phase compounding mainly refers to an electromagnetic continuous casting compounding method. Among the above methods, the roll cladding method is a more general method for producing metal composite plates. The basic principle of the rolling and compounding method is that the strong pressure action of rolling mill or the combination with heat action is utilized to make the two metals (alloys) to be compounded produce plastic deformation, and finally, the two-layer metal composite material in a physical metallurgical bonding mode is formed. In comparison with single metal rolling, the initial rolling deformation of the roll cladding process must reach a certain critical amount in order to form an initial interfacial bond. The rolling and cladding method can be classified into hot rolling and cold rolling depending on whether heating is performed during rolling and cladding. In the process of rolling and compounding the metal laminated composite material, a plurality of factors influencing the metal laminated composite material exist, various influencing factors have complex relations, and due to the difference of the performances of two different metals, the metal composite plate manufactured by the existing rolling method always has the problems of low bonding strength, large residual stress, serious warping, low yield and the like.
Disclosure of Invention
The invention aims to solve the technical problem that the interface bonding strength of the metal composite plate manufactured by the existing rolling method is low. Therefore, a rolling method of the metal composite plate with the prefabricated corrugated interface is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a rolling method of a metal composite plate with a prefabricated corrugated interface comprises the following steps:
s1, preparing a base plate and a compound plate: selecting a metal plate with relatively small deformation resistance as a base plate, and selecting a metal plate with relatively large deformation resistance as a composite plate (the relatively small deformation resistance and the relatively large deformation resistance are obtained by comparing the deformation resistance of the base plate with that of the composite plate);
s2, blank making: placing the substrate into a wave flat rolling mill for rolling, wherein an upper roller of the wave flat rolling mill is a one-way corrugated roller, the surface of the one-way corrugated roller is a one-way corrugated curved surface formed by transverse corrugations or longitudinal corrugations, a lower roller of the wave flat rolling mill is a flat roller, the upper surface of the rolled substrate is provided with a one-way corrugated surface, and the lower surface of the rolled substrate is a plane, so that a substrate plate blank is formed; placing the compound plate into a corrugated rolling mill for rolling, wherein an upper roller of the corrugated rolling mill is a crossed corrugated roller, the surface of the crossed corrugated roller is a curved surface formed by crossing transverse corrugations and longitudinal corrugations, a lower roller of the corrugated rolling mill is a flat roller, the upper surface of the rolled compound plate is a crossed corrugated surface, and the lower surface of the rolled compound plate is a plane, so that a compound plate blank is formed; polishing the corrugated surfaces of the substrate plate blank and the composite plate blank by using a steel wire brush, removing a surface oxide layer and pollutants, relatively stacking the corrugated surfaces of the substrate plate blank and the composite plate blank, and fixedly connecting the edges (ensuring that the substrate plate blank and the composite plate blank are not dislocated or deviated when subjected to non-uniform tangential force in the rolling process) to obtain a metal composite plate blank;
s3, rolling the composite plate: when a cold rolling method is adopted, the metal composite plate blank obtained in the step S2 is directly sent into a flat rolling mill for rolling, when a hot rolling/warm rolling method is adopted, the metal composite plate blank obtained in the step S2 is sent into a heating furnace to be heated to a specified temperature and then sent into the flat rolling mill for rolling, the upper roller and the lower roller of the flat rolling mill both adopt flat rollers, and the metal composite plate with a complex cross corrugated surface as a bonding interface and plane upper surface and plane lower surface is obtained by the processing of the process;
s4, annealing (namely adopting an annealing means common in the field, namely heating and cooling);
s5, finishing: and (5) straightening, cutting edges and preparing a finished product.
The invention has the beneficial effects that:
1) the corrugated shape is prefabricated on the surfaces to be combined of the base plate and the composite plate, so that the combination interface of the two plates can generate violent extrusion deformation and kneading action under the action of rolling force, an oxide layer is broken, and fresh and activated metal atoms flow out, so that the diffusion effect of the two metal atoms is enhanced; the periodic concave-convex structure formed by the plates can also generate strong mechanical meshing action at the joint interface, and the action is more obvious particularly under the condition that the prefabricated corrugated shapes of the two plates are different;
2) the corrugation is prefabricated on the component plate, only a small reduction amount is needed to form the required corrugation, and compared with the upper surface and the lower surface of a composite plate rolled by using a corrugated roller, the corrugation is permeated to a bonding interface without a large reduction amount, so that the requirements on equipment can be reduced, the energy consumption is reduced, and the bonding effect of the interface can be ensured;
3) the method can be used for prefabricating the corrugations of the component plates, and can reserve the extension allowance of the material for two-pass rolling in the corresponding direction through the periodic convex-concave structure, so that the problems of warping and large residual stress of a finish-rolled composite plate caused by different extension rates of two metal materials can be solved.
Drawings
FIG. 1 is a schematic view of a pre-corrugation scheme 1 of a substrate;
FIG. 2 is a schematic view of a pre-corrugation scheme 2 of a substrate;
FIG. 3 is a schematic view of a composite plate pre-corrugation scheme 1;
FIG. 4 is a schematic view of a composite board pre-corrugation scheme 2;
FIG. 5 is a schematic view of a prefabricated corrugated rolled metal composite panel embodiment 1;
FIG. 6 is a schematic view of a prefabricated corrugated rolled metal composite panel embodiment 2;
in the figure, 1-substrate; 2-doubling plate; 3-one-way corrugated roller; 4-flat roll; 5-substrate slab; 6-cross corrugated rolls; 7-doubling plate blank; 8-metal composite plate blank; 9-heating the furnace; 10-metal composite plate.
Detailed Description
The first embodiment is as follows:
referring to fig. 1, 3 and 5, a rolling method of a Mg/Al composite plate with a prefabricated corrugated interface comprises the following steps:
s1, preparing a base plate and a compound plate: selecting a 5052-grade aluminum alloy plate as a base plate 1, wherein the length, the width and the height are respectively 100 mm, 50 mm and 2mm, selecting an AZ 31-grade magnesium alloy plate as a composite plate 2, wherein the length, the width and the height are respectively 100 mm, 50 mm and 2mm, the deformation resistance of the 5052-grade aluminum alloy plate is small, the deformation resistance of the AZ 31-grade magnesium alloy plate is large, and the thickness ratio of the base plate 1 to the composite plate 2 is 1;
s2, blank making: placing the substrate 1 into a corrugated rolling mill for rolling, wherein the upper roller of the corrugated rolling mill is a unidirectional corrugated roller 3 with longitudinal corrugations on the surface, the lower roller of the corrugated rolling mill is a flat roller 4, the roller shape curve of the unidirectional corrugated roller 3 is a sine curve, the amplitude of the wave is 0.4mm, the wavelength of the wave is 6.28mm, the reduction rate is 20%, the upper surface of the substrate 1 after rolling is provided with the longitudinal corrugations, and the lower surface of the substrate is a plane, so that a substrate plate blank 5 is formed; placing the composite plate 2 into a corrugated rolling mill for rolling, wherein an upper roller of the corrugated rolling mill is a crossed corrugated roller 6, a lower roller of the corrugated rolling mill is a flat roller 4, a roll shape curve of the corrugated roller is a sine curve, the wave amplitude is 0.4mm, the wavelength is 6.28mm, the reduction rate is selected to be 20%, the upper surface of the composite plate 2 after rolling is crossed corrugated, and the lower surface is a plane, so that a composite plate blank 7 is formed; polishing the to-be-combined corrugated surfaces of the substrate plate blank 5 and the composite plate blank 7 by using a steel wire brush, removing a surface oxide layer and pollutants, oppositely stacking the corrugated surfaces of the substrate plate blank 5 and the composite plate blank 7, and fixedly connecting the edges to obtain a metal composite plate blank 8; here, the edges of the substrate plate blank 5 and the compound plate blank 7 are fixedly connected by common modes such as riveting and the like;
s3, rolling the composite plate: putting the metal composite plate blank 8 obtained in the step S2 into a protective atmosphere heating furnace 9, and keeping the temperature at 400 ℃ for 15 min; then, the metal composite plate is sent into a flat rolling mill for rolling, the reduction rate is selected to be 40%, the upper and lower rollers of the flat rolling mill adopt flat rollers 4, and the metal composite plate 10 with a complex cross corrugated surface as a bonding interface and plane upper and lower surfaces is obtained by processing in the working procedure;
s4, putting the metal composite plate 10 after the flat rolling into a protective atmosphere heating furnace 9 for annealing treatment, wherein the annealing temperature is 300 ℃, and the annealing time is 30 min;
s5, finishing: and (5) straightening, cutting edges and preparing a finished product.
Example two:
referring to fig. 1, 3 and 5, a rolling method of a Mg/Al composite plate with a prefabricated corrugated interface comprises the following steps:
s1, preparing a base plate and a compound plate: selecting a 5052-grade aluminum alloy plate as a base plate 1, wherein the length, the width and the height are respectively 100 mm, 50 mm and 2mm, selecting an AZ 31-grade magnesium alloy plate as a composite plate 2, wherein the length, the width and the height are respectively 100 mm, 50 mm and 2mm, the deformation resistance of the 5052-grade aluminum alloy plate is small, the deformation resistance of the AZ 31-grade magnesium alloy plate is large, and the thickness ratio of the base plate 1 to the composite plate 2 is 1;
s2, blank making: placing the substrate 1 into a corrugated rolling mill for rolling, wherein an upper roller of the corrugated rolling mill is a unidirectional corrugated roller 3 with transverse corrugations on the surface, a lower roller of the corrugated rolling mill is a flat roller 4, a roller shape curve of the unidirectional corrugated roller 3 is a sine curve, the amplitude of the wave is 0.4mm, the wavelength of the wave is 6.28mm, the reduction rate is selected to be 20%, the upper surface of the substrate 1 after rolling is provided with the corrugations along the transverse direction, and the lower surface of the substrate 1 is a plane, so that a substrate plate blank 5 is formed; placing the composite plate 2 into a corrugated rolling mill for rolling, wherein the upper roller of the corrugated rolling mill is a cross corrugated roller 6, the lower roller of the corrugated rolling mill is a flat roller 4, the roller shape curve of the cross corrugated roller 6 is a sine curve, the wave amplitude is 0.4mm, the wavelength is 6.28mm, the reduction rate is selected to be 20%, the upper surface of the composite plate 2 after rolling is a cross corrugated surface, and the lower surface of the composite plate is a plane, so that a composite plate blank 7 is formed; polishing the to-be-combined corrugated surfaces of the substrate plate blank 5 and the composite plate blank 7 by using a steel wire brush, removing a surface oxide layer and pollutants, oppositely stacking the corrugated surfaces of the substrate plate blank 5 and the composite plate blank 7, and fixedly connecting the edges to obtain a metal composite plate blank 8;
s3, rolling the composite plate: putting the metal composite plate blank 8 obtained in the step S2 into a protective atmosphere heating furnace 9, and keeping the temperature at 400 ℃ for 15 min; then, the metal composite plate is sent into a flat rolling mill for rolling, the reduction rate is selected to be 40%, the upper and lower rollers of the flat rolling mill adopt flat rollers 4, and the metal composite plate 10 with a complex cross corrugated surface as a bonding interface and plane upper and lower surfaces is obtained by processing in the working procedure;
s4, putting the metal composite plate 10 after the flat rolling into a protective atmosphere heating furnace 9 for annealing treatment, wherein the annealing temperature is 300 ℃, and the annealing time is 30 min.
S5, finishing: and (5) straightening, cutting edges and preparing a finished product.
Comparative example one:
a rolling method of a Mg/Al composite plate with cross corrugations prefabricated on the surface of a composite plate comprises the following steps:
s1, blank making: selecting a 5052-grade aluminum alloy plate as a base plate 1, wherein the length, the width and the height are respectively 100 mm, 50 mm and 2mm, selecting an AZ 31-grade magnesium alloy plate as a composite plate 2, wherein the length, the width and the height are respectively 100 mm, 50 mm and 2mm, the deformation resistance of the 5052-grade aluminum alloy plate is small, the deformation resistance of the AZ 31-grade magnesium alloy plate is large, and the thickness ratio of the base plate 1 to the composite plate 2 is 1;
s2, blank making: putting the substrate 1 into a flat roller mill for rolling, wherein the upper and lower rollers of the mill are flat rollers 4, and the reduction rate is 20% to form a substrate plate blank 5; placing the composite plate 2 into a corrugated rolling mill for rolling, wherein the upper roller of the corrugated rolling mill is a cross corrugated roller 6, the lower roller of the corrugated rolling mill is a flat roller 4, the roller shape curve of the cross corrugated roller 6 is a sine curve, the wave amplitude is 0.4mm, the wavelength is 6.28mm, the reduction rate is selected to be 20%, the upper surface of the composite plate 2 after rolling is a cross corrugated surface, and the lower surface of the composite plate is a plane, so that a composite plate blank 7 is formed; polishing the surfaces to be combined of the substrate plate blank 5 and the composite plate blank 7 (the substrate plate blank 5 is a plane, and the composite plate blank 7 is a cross corrugated surface) by using a steel wire brush, removing a surface oxide layer and pollutants, relatively stacking the surfaces to be combined of the substrate plate blank 5 and the composite plate blank 7, and fixedly connecting edges (ensuring that the substrate plate blank 5 and the composite plate blank 7 are not dislocated or deviated when subjected to non-uniform tangential force in the rolling process), thereby obtaining a metal composite plate blank 8;
s3, rolling the composite plate: putting the metal composite plate blank 8 obtained in the step S2 into a protective atmosphere heating furnace 9, and keeping the temperature at 400 ℃ for 15 min; then sending the metal composite plate into a flat rolling mill for rolling, wherein the reduction rate is 40%, the upper and lower rollers of the flat rolling mill adopt flat rollers 4, and the metal composite plate 10 with a complex net-shaped bonding surface as a bonding interface and planar upper and lower surfaces is obtained by processing in the working procedure;
s4, putting the metal composite plate 10 after the flat rolling into a protective atmosphere heating furnace 9 for annealing treatment, wherein the annealing temperature is 300 ℃, and the annealing time is 30 min.
S5, finishing: and (5) straightening, cutting edges and preparing a finished product.
The characteristics and properties of the rolled composite panels of examples one, two and comparative example one were observed and determined, and the relevant items and parameters are shown in the following table:
evaluation item Example one Example two Comparative example 1
Warping of sheet material Is not obvious Light and slight Is not obvious
Edge crack phenomenon Is not obvious Is not obvious Light and slight
Pulling and shearing strength (rolling direction) 37.82MPa 39.17MPa 30.71MPa
Pulling and shearing strength (horizontal) 34.51MPa 42.20MPa 32.66MPa
Tensile strength (roll direction) 258.32MPa 269.77MPa 248.40MPa
Tensile Strength (transverse) 272. 94MPa 243.76MPa 235.33MPa
The experimental data in the above table are measured on a DNS200 electronic universal tester, and the other selection parameters are the same except for the rolling method used in processing, and the results are as follows: as shown in the table above, the Mg/Al composite plate rolled by the method of the present invention can obtain a composite plate with higher bonding strength in both the first embodiment and the second embodiment, which has a direct relationship with the direct prefabricated corrugation at the interface, and can enhance the plastic deformation of the two materials at the bonding interface, thereby promoting the diffusion of metal atoms and realizing a larger range of metallurgical bonding; in contrast, the composite board obtained in the first comparative example has slightly reduced mechanical property parameters, because the surface to be compounded on one side of the substrate is a plane, and the degree of plastic deformation generated when the composite board is compounded with the composite board under the action of rolling pressure is relatively low. The metal composite plate rolled by the new process can achieve the purposes of improving the bonding strength of the two plates, improving the distribution state of residual stress and reducing the warping of the plate.
In the present invention, the bonding interface only needs one side with unidirectional corrugation and the other side with cross corrugation. In the above examples, the unidirectional corrugation rolls 3 were used for producing the substrate slab 5, and the cross corrugation rolls 6 were used for producing the clad slab 7. In other embodiments, the cross corrugation rolls 6 may be used for manufacturing the substrate slab 5, and the one-way corrugation rolls 3 may be used for manufacturing the multi-plate slab 7.
With reference to fig. 2, 4 and 6, when the substrate slab 5 is manufactured in step S2, the lower roll is replaced by the one-way corrugated roll 3 which is the same as the upper roll; when the double plate blank 7 is manufactured in step S2, the lower roll is replaced with the cross corrugated roll 6 which is the same as the upper roll. When the substrate 1 and the composite plate 2 are rolled, the upper surface and the lower surface are stressed uniformly, and the warping of the plate can be effectively avoided.
In the above embodiment, the corrugation curves of the unidirectional corrugation roll 3 and the cross corrugation roll 6 of step S2 are both sinusoidal, and the cross corrugation roll 6 and the unidirectional corrugation roll 3 adopt the same geometric parameters in the corresponding directions. In other embodiments, the corrugation curves of the unidirectional corrugation rollers 3 and the cross corrugation rollers 6 can be in other common patterns, preferably in a parabolic or triangular shape.
In the present invention, the rolling reduction in step S2 is preferably in the range of 10% to 40%, which ensures that the corresponding corrugated shape is formed on the surface of the substrate 1 and the composite board 2. The above embodiment uses 20%, but in other embodiments it may be 10% or 40%.
In step S3, when the metal composite plate blank 8 is fed into the flat rolling mill for rolling, the feeding direction is parallel to or perpendicular to the corrugation direction of the unidirectional corrugation roll 3. The first option is parallel and the second option is perpendicular.
In step S3, when the metal composite plate blank 8 is fed into a flat rolling mill for rolling, the selection range of single pass reduction rate is 20% to 50%, and the flat rolling is divided into multiple passes until the thickness of the composite plate meets the design requirements.
The invention is not only suitable for the compounding of double-layer metal plates, but also suitable for the compounding of three-layer metal plates, namely: one substrate slab 5 and two clad slabs 7 are prepared in step S1, the same one-way corrugated surfaces are prefabricated on the upper and lower surfaces of the substrate 1 to form the substrate slab 5 in step S2, the two clad slabs 7 are stacked directly above and below the substrate slab 5, respectively, so that the corrugated surfaces of the substrate slab 5 and the clad slabs 7 are opposite to each other, and then the edges are fixedly connected to obtain the metal composite slab 8.
The invention is not limited to the embodiments described, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.

Claims (8)

1. A rolling method of a metal composite plate with a prefabricated corrugated interface comprises the following steps:
s1, preparing a base plate and a compound plate: selecting a metal plate with relatively small deformation resistance as a base plate (1), and selecting a metal plate with relatively large deformation resistance as a composite plate (2);
s2, blank making: putting the substrate (1) into a corrugated rolling mill for rolling, wherein an upper rolling roll of the corrugated rolling mill is a unidirectional corrugated roll (3), the surface of the unidirectional corrugated roll (3) is a unidirectional corrugated curved surface formed by transverse corrugations or longitudinal corrugations, a lower rolling roll of the corrugated rolling mill is a flat roll (4), the upper surface of the rolled substrate (1) is a unidirectional corrugated surface, and the lower surface of the rolled substrate is a plane, so that a substrate plate blank (5) is formed; placing the composite plate (2) into a corrugated rolling mill for rolling, wherein an upper roller of the corrugated rolling mill is a crossed corrugated roller (6), the surface of the crossed corrugated roller (6) is a curved surface formed by crossing transverse corrugations and longitudinal corrugations, a lower roller of the corrugated rolling mill is a flat roller (4), the upper surface of the rolled composite plate (2) is a crossed corrugated surface, and the lower surface of the rolled composite plate is a plane, so that a composite plate blank (7) is formed; polishing the corrugated surfaces of the substrate plate blank (5) and the composite plate blank (7) by using a steel wire brush, removing a surface oxide layer and pollutants, oppositely stacking the corrugated surfaces of the substrate plate blank (5) and the composite plate blank (7) and fixedly connecting the edges to obtain a metal composite plate blank (8);
s3, rolling the composite plate: when a cold rolling method is adopted, the metal composite plate blank (8) obtained in the step S2 is directly sent into a flat rolling mill for rolling, when a hot rolling/warm rolling method is adopted, the metal composite plate blank (8) obtained in the step S2 is sent into a heating furnace (9) to be heated to a specified temperature and then sent into the flat rolling mill for rolling, the upper roller and the lower roller of the flat rolling mill adopt flat rollers (4), and the metal composite plate (10) with a complex cross corrugated surface as a bonding interface and plane upper and lower surfaces is obtained through the processing of the process;
s4, annealing;
s5, finishing: and (5) straightening, cutting edges and preparing a finished product.
2. The method of rolling a metal composite plate with a preformed corrugated interface as claimed in claim 1, wherein: in step S2, the cross corrugation roll (6) is used when the substrate slab (5) is produced, and the one-way corrugation roll (3) is used when the multi-plate slab (7) is produced.
3. The method of rolling a metal composite plate with a preformed corrugated interface as claimed in claim 1, wherein: when the substrate plate blank (5) is manufactured in the step S2, the lower rolling roller is replaced by a one-way corrugated roller (3) which is the same as the upper rolling roller; when the composite plate blank (7) is manufactured in the step S2, the lower rolling roller is replaced by the same crossed corrugated roller (6) as the upper rolling roller.
4. A method of rolling a pre-corrugated interface metal composite plate according to any one of claims 1 to 3, wherein: in step S2, the corrugation curves adopted by the unidirectional corrugation roll (3) and the cross corrugation roll (6) are sinusoidal curves or parabolic curves or triangular curves, and the unidirectional corrugation roll (3) and the cross corrugation roll (6) adopt the same geometric parameters in the corresponding directions.
5. The method of rolling a pre-corrugated interface metal composite plate as claimed in claim 4, wherein: in step S2, the rolling reduction is selected within a range of 10% to 40%.
6. The method of rolling a pre-corrugated interface metal composite plate as claimed in claim 5, wherein: in step S3, when the metal composite plate blank (8) is fed into the flat rolling mill and rolled, the feeding direction is parallel or perpendicular to the corrugation direction of the unidirectional corrugation roll (3).
7. The method of rolling a pre-corrugated interface metal composite plate as claimed in claim 6, wherein: in step S3, when the metal composite plate blank (8) is fed into a flat rolling mill for rolling, the selection range of single pass reduction rate is 20% -50%, and the flat rolling is divided into multiple passes until the thickness of the composite plate meets the design requirements.
8. The method of rolling a metal composite plate with a preformed corrugated interface as claimed in claim 1, wherein: preparing a substrate slab (5) and two clad slabs (7) in step S1, prefabricating the same one-way corrugated surfaces on the upper and lower surfaces of a substrate (1) to form the substrate slab (5), stacking the two clad slabs (7) right above and below the substrate slab (5) respectively so that the corrugated surfaces of the substrate slab (5) and the clad slabs (7) are opposite, and then fixedly connecting the edges to obtain the metal composite slab (8) in step S2.
CN202110316951.XA 2021-03-25 2021-03-25 Rolling method of metal composite plate with prefabricated corrugated interface Pending CN113020261A (en)

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