CN111702008B - Method for rolling three-layer composite ultra-thin strip by multi-roller mill - Google Patents
Method for rolling three-layer composite ultra-thin strip by multi-roller mill Download PDFInfo
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- CN111702008B CN111702008B CN202010582062.3A CN202010582062A CN111702008B CN 111702008 B CN111702008 B CN 111702008B CN 202010582062 A CN202010582062 A CN 202010582062A CN 111702008 B CN111702008 B CN 111702008B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-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
- B21B1/22—Metal-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 plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-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 plates, strips, bands or sheets of indefinite length in a non-continuous process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0016—Abrading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
- B32B2038/166—Removing moisture
Abstract
The invention discloses a method for rolling a three-layer composite ultra-thin strip by a multi-roller mill, which comprises the steps of applying tension, processing the surface of an ultra-thin strip, rolling the intermediate layer ultra-thin strip, cleaning and drying the surface of the ultra-thin strip and rolling. According to the invention, the oxide film on the surface of the ultrathin strip is removed by the ultrasonic auxiliary polishing device, so that damages such as punching holes on the surface caused by a conventional method are avoided; the micro convex body is prepared by rolling the ultrathin strip of the middle layer, so that strong stress is formed at a local position, mechanical occlusion in the rolling and compounding process is enhanced, the shape of a bonding interface is promoted to be three-dimensional from the traditional two-dimensional mode, and the bonding strength between metal surfaces is increased; pulse current is introduced in the rolling process, a tiny gap is created between the ultrathin belt layers based on the specific structure of the microprotrusions, a point discharge effect is generated after the micro-protrusions are electrified, and efficient rolling compounding is realized under a small reduction rate. The method realizes the high-strength combination of the three-layer composite ultra-thin belt under a small reduction rate, and can be used for the batch production of industrial composite belts.
Description
Technical Field
The invention relates to the field of ultrathin strip composite rolling, in particular to a method for rolling a three-layer composite ultrathin strip by a multi-roller rolling mill.
Background
With the rapid development of high and new technology fields such as micro-electro-mechanical systems, micro-manufacturing and the like, parts tend to be miniaturized, and the demand for high-quality ultra-thin strips is rapidly increased. The service performance of the single-layer extremely thin strip has limitation, and the composite extremely thin strip can integrate the advantages of different metal materials. For example, the aluminum/steel/aluminum ultrathin composite foil completely reserves the advantages of light weight, high strength, heat dissipation property, decoration and the like of aluminum materials, and meanwhile, the steel with higher strength is used as a substrate, so that the comprehensive mechanical property and the processing property of the aluminum/steel/aluminum ultrathin composite foil are improved, and the aluminum/steel/aluminum ultrathin composite foil can be widely applied to various 3C electronic products, such as liquid crystal panels, 5G equipment, heat exchangers, air cooling of power stations, automobile parts and the like. The copper/steel/aluminum composite strip integrates the conductivity of pure copper, the deep drawability of steel, the thermal conductivity and the corrosion resistance of aluminum, fully exerts the comprehensive performance of a new material, can replace expensive T2 pure copper (red copper) and copper-plated products with serious environmental pollution, and is widely applied to solar heat collecting plates, low-voltage electric appliances, transformers, various radiating fins and the like. Therefore, the method for preparing the heterogeneous three-layer composite ultrathin strip has very important scientific research and economic values.
The composite ultra-thin strip is usually produced by rolling and compounding, and the basic principle of the rolling and compounding is that under the action of rolling force, two or more than two metal strips simultaneously generate plastic deformation, a surface metal layer is cracked, fresh metal is exposed, metallurgical bonding is further formed between strip surfaces, and the bonding strength is further improved through the subsequent treatment process; the production cost is low, the process is simple, and the large-scale industrial production is easy to realize.
The traditional cold rolling composite rolling adopts one-pass large reduction rate to realize metallurgical bonding among metal atoms, and the bonding strength is further improved through subsequent heat treatment. The traditional cold rolling compounding is greatly influenced by a metal surface oxidation layer and a hardened layer, the surface layer can be broken only by high reduction rate, fresh metal is exposed, and the compounding of dissimilar metals is realized, but the internal stress distribution of the rolled composite strip is not uniform under the high reduction rate due to different mechanical properties and different deformability of the dissimilar metals, and the conventional oxidation layer damage method adopts a steel wire brush polishing method to prepare the composite strip, so that the surface is cleaned, the surface oxidation layer is removed, and the rolling compounding of the strip is promoted. However, when the method is used for polishing the surface of the ultrathin strip, the surface has obvious breakdown and holes, the ultrathin strip is damaged, and the bonding stability of each metal interface of the composite ultrathin strip is reduced.
Disclosure of Invention
The invention aims to provide a method for rolling a three-layer composite ultra-thin strip by a multi-roller mill, which aims to solve the problems in the prior art, and the three-layer composite ultra-thin strip with thinner thickness, better surface quality and higher bonding strength is obtained by applying tension to the ultra-thin strip, surface treatment of the ultra-thin strip, rolling treatment of an intermediate ultra-thin strip, surface cleaning and drying of the ultra-thin strip and electro-plastic rolling, and can be used for batch production of industrial composite strips.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a method for rolling a three-layer composite ultra-thin strip by a multi-roller mill, which comprises the following steps:
applying tension, namely applying back tension to the three layers of ultrathin strips and applying front tension to the composite ultrathin strip;
surface treatment, namely polishing the surfaces of the three layers of ultrathin strips by an ultrasonic auxiliary polishing device, breaking and removing surface oxidation films until the metal matrix is leaked out;
rolling the intermediate layer ultra-thin strip by a micro pattern roller to roll the upper and lower surfaces of the intermediate layer ultra-thin strip to form a micro-convex body; the micro-convex body forms strong stress at a local position to strengthen mechanical occlusion in the rolling compounding process of the three-layer ultrathin strip;
cleaning the surface, namely cleaning the three layers of ultra-thin strips by using an ultrasonic vibration auxiliary cleaning device;
surface drying, namely drying the surfaces of the three layers of ultrathin belts;
and step six, rolling, namely feeding the three layers of ultrathin strips into a multi-roller mill for electro-plastic rolling, and tightly combining the three layers of ultrathin strips to form the composite ultrathin strip.
Preferably, the width of the ultra-thin strip ranges from 20 mm to 600mm, and the thickness ranges from 0.05 mm to 0.5 mm.
Preferably, the material of the ultra-thin strip is steel, copper, aluminum, magnesium, titanium or alloy material of the above metals, and the three-layer composite ultra-thin strip can be symmetrically arranged, such as aluminum/copper/aluminum, or asymmetrically arranged, such as copper/steel/aluminum.
Preferably, in step one, different front and back tensions are applied according to the three layers of the extremely thin strip materials and the different sizes. The three uncoilers are adopted to simultaneously apply different back tension according to different materials and thickness sizes of the three layers of ultrathin strips, the coiler is adopted to apply front tension according to the ultrathin strips after rolling compounding, and proper tension control is favorable for rolling compounding of dissimilar metals.
Preferably, in the second step, the surface of the polishing roller in the ultrasonic auxiliary polishing device is subjected to texturing treatment, and local strong stress is generated when the textured polishing roller is contacted with the surface of the ultrathin strip, so that the surface oxide film can be removed efficiently under the action of high-frequency excitation of ultrasonic waves, and the outflow of fresh metal is promoted; under the action of thermal softening and acoustic softening of an ultrasonic energy field, work hardening generated by polishing is reduced, and the bonding strength of the three-layer composite ultrathin strip is improved.
Preferably, in the third step, the upper concave-convex part and the lower concave-convex part of the micro pattern roller are correspondingly arranged, the concave-convex height of the micro pattern roller is not more than one third of the thickness of the upper-layer ultrathin strip and the lower-layer ultrathin strip, so that the micro-convex bodies are ensured to form strong stress at local positions, the mechanical engagement performance of the rolling and compounding process of the three-layer ultrathin strip is enhanced, the performance and the strength of the middle-layer ultrathin strip are ensured, the shape of the combination interface of the three-layer ultrathin strip is improved to be three-dimensional from the traditional two-dimensional mode, and the combination strength between metal surfaces is increased; .
Preferably, in the fourth step, the cleaning agent is enabled to generate cavitation on the surface of the ultrathin belt by using the ultrasonic vibration auxiliary cleaning device, so that dirt on the surface of the ultrathin belt and ultrathin belt particles falling during polishing are removed.
Preferably, in the sixth step, two groups of pulse electrified rollers are arranged at the front and the rear of the rolling mill, and the two groups of pulse electrified rollers assist the multi-roller rolling mill to carry out combined rolling. The crystal grains are refined, the plastic deformation capability of the metal difficult to deform is improved, and the coordinated deformation among dissimilar metals is realized. Meanwhile, a micro gap is generated between the micro convex body on the surface of the middle layer ultrathin strip and the upper and lower layer ultrathin strips, a tip effect is generated after pulse current is passed, and rolling compounding of the three layers of ultrathin strips is effectively realized under a small reduction rate.
Preferably, in the sixth step, the multi-roll mill is any one of a twelve-roll mill, a twenty-roll mill, a thirty-roll mill and a thirty-two-roll mill.
The invention discloses the following technical effects:
according to the method, the three-layer composite ultrathin strip is obtained by applying tension to the ultrathin strip, performing surface treatment on the ultrathin strip, performing rolling treatment on the middle-layer ultrathin strip, cleaning and drying the surface of the ultrathin strip and performing electro-plastic rolling, and an oxide film on the surface of the ultrathin strip is removed by an ultrasonic auxiliary polishing device, so that the damage to the ultrathin strip caused by surface breakdown and holes easily caused by a conventional oxide layer removing method is avoided; according to the invention, the ultra-thin belt is cleaned by the ultrasonic vibration auxiliary cleaning device, so that surface dirt and ultra-thin belt particles falling during polishing can be efficiently removed; the rolling treatment of the middle layer ultra-thin strip is carried out, the micro-convex body enables the micro-convex body to form strong stress at a local position, mechanical occlusion in the rolling compounding process of the three layers of ultra-thin strips is enhanced, a combination interface is lifted to be three-dimensional from the traditional two-dimensional mode, the combination strength among metal surfaces is increased, pulse current is introduced in the rolling process, a tiny gap is created between the middle layer ultra-thin strip and the upper and lower layer ultra-thin strips based on the specific structure of the micro-convex body, a point discharge effect is generated after the pulse current is introduced, and the rolling compounding of the three layers of ultra-thin strips is effectively realized under the condition of smaller reduction ratio. The three-layer composite ultra-thin belt with thinner thickness, better surface quality and higher bonding strength is obtained by the method and can be used for the batch production of industrial composite belts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the structure of a clad-rolling apparatus according to the present invention;
FIG. 2 is a schematic structural view of a micro patterned roller according to the present invention;
FIG. 3 is a schematic view showing the structure of an ultra-thin belt as an upper layer and an ultra-thin belt as a lower layer after roll-pressing treatment of an ultra-thin belt as an intermediate layer in the present invention.
The device comprises an uncoiler 1, an upper-layer ultrathin strip 21, an intermediate-layer ultrathin strip 22, a lower-layer ultrathin strip 23, a guide roll 3, an ultrasonic auxiliary polishing device 4, a micro pattern roll 5, an ultrasonic vibration auxiliary cleaning device 6, a drying device 7, a front electrifying roll 81, a rear electrifying roll 82, a multi-roll mill 9, a three-layer composite ultrathin strip 10 and a winder 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-2, the composite rolling device applied to the present invention sequentially includes three sets of uncoiling polishing sets, an ultrasonic vibration auxiliary cleaning device 6, a drying device 7, a multi-roll mill 9 and a winding machine 11, each set of uncoiling polishing set sequentially includes an uncoiler 1 and an ultrasonic auxiliary polishing device 4, the three sets of uncoiling polishing sets sequentially correspond to an upper-layer ultrathin strip 21, an intermediate-layer ultrathin strip 22 and a lower-layer ultrathin strip 23, the uncoiling polishing set of the intermediate-layer ultrathin strip 22 is provided with a micro pattern roller 5 behind the ultrasonic auxiliary polishing device 4, a front electrifying roller 81 and a rear electrifying roller 82 are respectively arranged in front of and behind the multi-roll mill 9, a plurality of sets of guide rollers 3 are arranged in the composite rolling device, and the guide rollers 3 adjust the movement direction of the ultrathin strip and perform the function of conveying. The multi-roll mill is any one of a twelve-roll mill, a twenty-roll mill, a thirty-roll mill and a thirty-two-roll mill.
The width range of the ultra-thin strip is 20-600mm, and the thickness range is 0.05-0.5 mm. The material of the ultrathin strip is steel, copper, aluminum, magnesium, titanium or alloy material of the above metals, and the three-layer composite ultrathin strip can be symmetrically arranged, such as aluminum/copper/aluminum, or asymmetrically arranged, such as copper/steel/aluminum.
The invention provides a method for rolling a three-layer composite ultra-thin strip by a multi-roller mill, which comprises the following steps:
applying tension, namely applying back tension to the three layers of ultrathin strips and applying front tension to the composite ultrathin strip; applying different back tension according to the difference of the three layers of ultrathin strips and the sizes, wherein the back tension of each layer of ultrathin strip is 0.2 to 0.6 times of the yield strength of the layer of strip, and applying front tension to the ultrathin strips after compounding, wherein the front tension is 0.2 to 0.6 times of the yield strength of the three layers of ultrathin strips after compounding. Wherein the yield strength sigma of the three-layer composite ultra-thin stripsCalculated according to equation (1).
In the formula:
t1-the thickness of the rolled upper ultra-thin strip is in millimeters (mm);
t2-the thickness of the rolled intermediate layer is in millimeters (mm);
t3-the thickness of the lower layer of ultra-thin strip after rolling is in millimeters (mm);
σs1the lower limit value of the yield strength standard of the upper ultra-thin strip is in megapascals (MPa);
σs2the yield strength standard lower limit value of the intermediate layer ultra-thin strip is expressed in megapascals (MPa);
σs3-standard of yield strength of lower extremely thin bandThe lower limit is in units of megapascals (MPa).
The three uncoilers are adopted to simultaneously apply different back tension according to different materials and thickness sizes of the three layers of ultrathin strips, the coiling machine is adopted to apply front tension according to the ultrathin strips after rolling compounding, proper tension control is favorable for rolling compounding of dissimilar metals, and the plastic deformation capacity of the ultrathin strips is improved.
Surface treatment, namely polishing the surfaces of the three layers of ultrathin strips by an ultrasonic auxiliary polishing device, breaking and removing surface oxidation films until the metal matrix is leaked out; the ultrasonic auxiliary polishing devices of the middle-layer ultrathin strip are respectively arranged in the upper and lower rollers, the ultrasonic auxiliary polishing devices of the upper and lower-layer ultrathin strips are only arranged in the direction of a composite surface to be rolled, the surface of a polishing roller in the ultrasonic auxiliary polishing device is subjected to texturing treatment, local strong stress is generated when the textured polishing roller is in contact with the surface of the ultrathin strip, and the ultrasonic high-frequency excitation effect is more favorable for efficiently removing a surface oxidation film and promoting the outflow of fresh metal; under the action of thermal softening and acoustic softening of an ultrasonic energy field, work hardening generated by polishing is reduced, and the bonding strength of the three-layer composite ultrathin strip is improved.
Rolling the intermediate layer ultra-thin strip by a micro pattern roller to roll the upper and lower surfaces of the intermediate layer ultra-thin strip to form a micro-convex body; the micro-convex body forms strong stress at a local position, and mechanical engagement in the rolling compounding process of the three-layer ultrathin strip is enhanced, so that the shape of a bonding interface is promoted to be three-dimensional from the traditional two-dimensional mode; the upper concave-convex part and the lower concave-convex part of the micro pattern roller are correspondingly arranged, the concave-convex height of the micro pattern roller is not more than one third of the thickness of the upper-layer ultrathin strip and the lower-layer ultrathin strip, the micro convex bodies are guaranteed to form strong stress at local positions, the mechanical engagement performance of the three-layer ultrathin strip in the rolling and compounding process is enhanced, and meanwhile the performance and the strength of the middle-layer ultrathin strip are guaranteed.
Cleaning the surface, namely cleaning the three layers of ultra-thin strips by using an ultrasonic vibration auxiliary cleaning device; the cleaning agent is a water-based cleaning agent-triethanolamine oleate, and can generate a cavitation effect on the surface of the ultrathin belt by using the ultrasonic vibration auxiliary cleaning device, so that dirt on the surface of the ultrathin belt and ultrathin belt particles falling during polishing can be efficiently removed. The capacity of the cleaning agent should exceed the placing height of the three layers of ultra-thin strips.
Surface drying, namely drying the surfaces of the three layers of ultrathin belts; and conveying the cleaned ultrathin strip to a drying device to quickly remove liquid on the surface of the ultrathin strip, thereby being beneficial to rolling and compounding three layers of ultrathin strips.
And step six, rolling, namely feeding the three layers of ultrathin strips into a multi-roller mill for electro-plastic rolling, and tightly combining the three layers of ultrathin strips to form the composite ultrathin strip. Two groups of pulse electrified rollers are arranged at the front and the rear of the rolling mill, and the two groups of pulse electrified rollers assist the multi-roller rolling mill to carry out composite rolling. The micro gaps generated between the micro convex bodies on the surface of the middle layer extremely thin strip and the upper layer extremely thin strip and the lower layer extremely thin strip are convenient for pulse current to generate a tip effect, the compounding of the three layers of extremely thin strips is promoted, the bonding strength is improved, and the rolling compounding of the three layers of extremely thin strips is effectively realized under a smaller reduction rate. The pulse current can refine interface structure crystal grains, aggravate element diffusion, improve the plastic deformation capability of the metal difficult to deform, realize the coordinated deformation among dissimilar metals, remarkably improve the bonding strength, realize the coordinated deformation among the dissimilar metals, and can be used for batch production of composite belts in industry.
And (4) rolling and bundling the rolled composite ultra-thin strip by a rolling machine to finish the composite rolling work.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (7)
1. A method for rolling a three-layer composite ultra-thin strip by a multi-roller mill is characterized by comprising the following steps:
applying tension, namely applying back tension to the three layers of ultrathin strips and applying front tension to the composite ultrathin strip; applying different back tension according to the difference of the three layers of ultrathin strip materials and sizes, wherein the back tension of each layer of ultrathin strip is 0.2 to 0.6 times of the yield strength of the layer of material, and the front tension applied to the compounded ultrathin strip is 0.2 to 0.6 times of the yield strength of the three layers of compound ultrathin strips;
surface treatment, namely polishing the surfaces of the three layers of ultrathin strips by an ultrasonic auxiliary polishing device, breaking and removing surface oxidation films until the metal matrix is leaked out;
rolling the intermediate layer ultra-thin strip by a micro pattern roller to roll the upper and lower surfaces of the intermediate layer ultra-thin strip to form a micro-convex body; the upper concave-convex part and the lower concave-convex part of the micro pattern roller are correspondingly arranged, and the concave-convex height of the micro pattern roller is not more than one third of the thickness of the ultrathin strips on the upper layer and the lower layer;
cleaning the surface, namely cleaning the three layers of ultra-thin strips by using an ultrasonic vibration auxiliary cleaning device;
surface drying, namely drying the surfaces of the three layers of ultrathin belts;
and step six, rolling, namely feeding the three layers of ultrathin strips into a multi-roller mill for electro-plastic rolling, and tightly combining the three layers of ultrathin strips to form the composite ultrathin strip.
2. The method of claim 1, wherein the multi-roll mill is used for rolling a three-layer composite ultra-thin strip, and the method comprises the following steps: the width range of the ultra-thin strip is 20-600mm, and the thickness range of the ultra-thin strip is 0.05-0.5 mm.
3. The method of claim 1, wherein the multi-roll mill is used for rolling a three-layer composite ultra-thin strip, and the method comprises the following steps: the material of the ultra-thin strip is steel, copper, aluminum, magnesium, titanium or alloy material of the above metals.
4. The method of claim 1, wherein the multi-roll mill is used for rolling a three-layer composite ultra-thin strip, and the method comprises the following steps: and in the second step, the surface of a polishing roller in the ultrasonic auxiliary polishing device is subjected to texturing treatment, local strong stress is generated when the textured polishing roller is in contact with the surface of the ultrathin strip, and an oxidation film on the surface is broken under the high-frequency excitation action of ultrasonic waves, so that the outflow of fresh metal is promoted.
5. The method of claim 1, wherein the multi-roll mill is used for rolling a three-layer composite ultra-thin strip, and the method comprises the following steps: and in the fourth step, the ultrasonic vibration auxiliary cleaning device is utilized to enable the cleaning agent to generate cavitation on the surface of the ultrathin belt, so that dirt on the surface of the ultrathin belt and ultrathin belt particles falling during polishing are removed.
6. The method of claim 1, wherein the multi-roll mill is used for rolling a three-layer composite ultra-thin strip, and the method comprises the following steps: and step six, two groups of pulse electrified rollers are arranged at the front and the rear of the rolling mill, and the rolling mill is assisted to carry out composite rolling through the two groups of pulse electrified rollers.
7. The method of claim 1, wherein the multi-roll mill is used for rolling a three-layer composite ultra-thin strip, and the method comprises the following steps: in the sixth step, the multi-roll mill is any one of a twelve-roll mill, a twenty-roll mill, a thirty-roll mill and a thirty-two-roll mill.
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| CN112756396A (en) * | 2020-12-21 | 2021-05-07 | 太原理工大学 | Method for preparing metal composite thin/foil through ultrasonic-assisted rolling |
| CN112756790B (en) * | 2021-01-07 | 2022-03-25 | 喆烯新材(北京)科技有限公司 | Method and device for preparing perforated current collector foil based on dislocation texturing rolling |
| CN112893466A (en) * | 2021-01-19 | 2021-06-04 | 太原理工大学 | Method for rolling ultrathin strip based on laser energy field assistance |
| CN112872037A (en) * | 2021-02-08 | 2021-06-01 | 浙江工业大学 | Device and method for compositely manufacturing three-layer composite metal plate strip by laser rolling |
| CN113477730A (en) * | 2021-07-09 | 2021-10-08 | 安徽金合科技有限公司 | Production device of multilayer composite metal |
| CN114367535B (en) * | 2022-01-19 | 2023-09-19 | 太原理工大学 | Aluminum alloy/amorphous alloy rolling composite process with current auxiliary phase regulation |
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