CN108608694B - Corrosion-resistant composite plate and processing method thereof - Google Patents
Corrosion-resistant composite plate and processing method thereof Download PDFInfo
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- CN108608694B CN108608694B CN201810433607.7A CN201810433607A CN108608694B CN 108608694 B CN108608694 B CN 108608694B CN 201810433607 A CN201810433607 A CN 201810433607A CN 108608694 B CN108608694 B CN 108608694B
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- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000005260 corrosion Methods 0.000 title claims abstract description 29
- 230000007797 corrosion Effects 0.000 title claims abstract description 29
- 238000003672 processing method Methods 0.000 title abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 82
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 82
- 238000005096 rolling process Methods 0.000 claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 54
- 239000010936 titanium Substances 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000000137 annealing Methods 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 133
- 239000000463 material Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000005253 cladding Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
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- 239000002905 metal composite material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000011473 acid brick Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
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- 238000004026 adhesive bonding Methods 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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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- Metal Rolling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention provides a corrosion-resistant composite board and a processing method thereof, and the composite board for a flue can be continuously produced by utilizing the original warm rolling and asynchronous rolling methods, and comprises a titanium layer, an aluminum layer and a steel layer which are sequentially superposed and compounded, wherein the thickness of the aluminum layer is 0.5-1 mm, the total thickness of the aluminum layer and the titanium layer is 1-2 mm, and the thickness of the steel layer is 3-40 mm. The plate can realize the effect of corrosion resistance and service life of the flue for more than 10 years, greatly prolongs the service life, and has extremely high popularization value.
Description
Technical Field
The invention relates to a metal composite board and a processing method thereof.
Background
Thermal power generation is a power generation mode that thermal energy generated by combustible materials during combustion is converted into electric energy through a power generation power device. At present, the coal for generating electricity and supplying heat in China accounts for about 50 percent of the total coal production amount in China. Approximately 90% of the national sulfur dioxide emissions are generated by coal power and 80% of the carbon dioxide emissions are emitted by coal power.
The waste gas discharged by coal direct combustion contains a large amount of water vapor and sulfur oxides, sulfuric acid is formed on the inner wall of the chimney after the waste gas is cooled in the chimney, and the waste gas has a certain temperature, so that the corrosion is high.
The chimney lining anticorrosive material for the thermal power plant is specially specified in the ' standards of the power industry of the people's republic of China ', and comprises acid-resistant glue, acid-resistant bricks, light acid-resistant pouring materials and other materials, wherein the materials mostly take silicate as a main body, and an anticorrosive structure layer is formed on the inner wall of the chimney by utilizing a certain pouring process, and the material is generally called ' glue smearing ' in the industry. However, the service life of the glue smearing is only 1-3 years, so the frequency of replacing an anticorrosive structure layer in a thermal power plant is high.
Titanium is a common corrosion-resistant material, and a dense oxide film with strong adhesive force and large inertia is generated on the surface of titanium in air or oxygen-containing media, so that the titanium matrix can be protected from corrosion. Secondly, titanium has the advantages of light weight, high strength, good heat resistance and the like, but because titanium is rare, the price of titanium is high, and titanium alloy are widely used in the aviation industry at present, which is called space metal, and secondly, the titanium alloy is widely used in the shipbuilding industry, the chemical industry, the manufacture of mechanical parts, telecommunication equipment, hard alloy and other aspects.
The asynchronous rolling is a rolling with unequal speed, and the linear speeds of the surfaces of the upper working roll and the lower working roll are unequal so as to reduce the rolling force. The asynchronous rolling is used for rolling the bimetallic plate, the bending change of the rolled piece is caused, the bending curvature of the bimetallic plate can be adjusted by the asynchronous rolling, and the straight rolled piece can be obtained under the condition that the thickness ratio of two metal components is in a certain deformation degree under the condition of the same asynchronous ratio. Compared with the conventional rolling, the asynchronous rolling can obviously reduce the rolling pressure; the total deformation of one rolling process is increased, and the rolling passes and the intermediate annealing times are reduced; the rolling thinning capability and the rolling precision of the rolling mill are improved. Therefore, in the prior art, asynchronous rolling is widely applied to processing of extremely thin strips which have high rolling deformation resistance and severe work hardening.
Disclosure of Invention
The invention aims to provide a corrosion-resistant composite board and a processing method thereof, which are used for solving the technical problem of short service life of the traditional glue smearing.
In order to achieve the above purpose, the invention provides the following technical scheme:
corrosion resistant composite sheet, including superimposed complex titanium layer, aluminium lamination and steel layer in order, wherein the thickness of aluminium lamination is 0.5mm ~ 1mm, and the gross thickness of aluminium lamination and titanium layer is 1mm ~ 2mm, and the thickness of steel layer is 3mm ~ 40 mm.
Further, in the present invention, the composite sheet is formed by asynchronous rolling; before asynchronous rolling, the aluminum layer and the steel layer are heated to 200-300 ℃.
Further, in the invention, during the asynchronous rolling, the linear velocity of the roller at one side of the titanium layer is less than that of the roller at one side of the steel layer, the asynchronous ratio is 2-4, and the outlet velocity of the rolled piece is 3-6 m/min.
Further, in the invention, after asynchronous rolling, the composite board is annealed at the annealing temperature of 300-400 ℃.
The invention also provides a preparation method of the corrosion-resistant composite plate, which comprises the following steps of sequentially executing:
selecting a titanium layer, an aluminum layer and a steel layer, wherein the thickness of each layer meets the requirements that the thickness of the aluminum layer is 0.5-1 mm, the total thickness of the aluminum layer and the titanium layer is 1-2 mm, and the thickness of the steel layer is 3-40 mm;
secondly, conveying the aluminum layer and the steel layer into a heating furnace, heating the aluminum layer and the steel layer in the heating furnace to 200-300 ℃, and then conveying the aluminum layer and the steel layer out of an outlet of the heating furnace;
thirdly, stacking and arranging the titanium layer at normal temperature and the aluminum layer and the steel layer which are just transported out of the heating furnace in the sequence of the titanium layer, the aluminum layer and the steel layer from top to bottom, and carrying out asynchronous rolling; when the rolling is asynchronous, the linear velocity of the roller positioned at one side of the titanium layer is less than that of the roller positioned at one side of the steel layer;
step four, annealing the composite plate after the asynchronous rolling is finished;
and step five, cooling the annealed composite board, and finishing the preparation.
Further, in the invention, the annealing temperature is 300-400 ℃.
Further, in the invention, the titanium layer, the aluminum layer and the steel layer are sequentially stacked, oriented by a guide roller and then asynchronously rolled.
Has the advantages that:
according to the technical scheme, the invention provides the processing method of the composite plate, and the rolling of the three-layer metal composite material is mainly realized by using the processes of heating and asynchronous rolling.
In the three layers of metal, the steel layer is used as a base layer, the thickness is 3-40 mm, and effective support is provided for the whole composite board; the titanium layer is used as a composite layer, has the thickness of 0.5 mm-1 mm, and is used for directly contacting with a corrosive environment to resist corrosion; the aluminum layer is used as an intermediate layer and plays a role in gluing the titanium layer and the steel layer; meanwhile, the aluminum layer has a good resistance effect on an acid corrosion environment, but the metal activity of the aluminum is high, so that the aluminum layer cannot be used in a high-temperature environment, the aluminum layer is light and cheap, and can be used as a good substitute of a titanium layer, the using amount of the titanium layer can be fully reduced, and effective corrosion resistance is considered, so that the total thickness of the aluminum layer and the titanium layer reaches 1-2 mm; therefore, the product cost is controlled, and the corrosion resistance effect is good.
The processing method of the invention is finally researched by fully considering the physical properties of the three materials and comparing the conventional compounding method. The traditional processing method comprises conventional composite rolling and explosion cladding, wherein the conventional composite rolling can meet the thickness requirement of the coating in the invention, but the thickness of the whole finished product can only meet the requirement below 4mm, if the thickness of the finished product is more than 4mm, the excellent equipment capacity is required, and the manufacturing cost is too high; the explosion cladding can meet the requirement on the cladding thickness of the finished product, but the cladding thickness cannot be less than 3mm, otherwise, the explosion impact cannot be borne, and therefore, the manufacturing requirement of the composite plate of the invention cannot be met.
Compared with the traditional processing method, the invention originally creates a heating mode before asynchronous rolling, and only heats the aluminum plate and the steel plate, and controls the heating temperature to be between 200 ℃ and 300 ℃, so that the aluminum plate can be in the temperature range of plastic deformation, and the later rolling is convenient; simultaneously because the steel layer is thicker, it can play the heat preservation effect to aluminum plate when laminating with aluminum plate after being heated, is unlikely to let aluminum plate cool down rapidly and influences rolling effect. And above-mentioned heating temperature can not exert an influence to titanium layer and steel layer, and the annealing temperature in later stage can not change the material performance of titanium layer and steel layer yet, so the composite sheet has good corrosion resisting property, and the composite sheet later stage of preparation can carry out good processing to install in the flue.
The further asynchronous rolling mode is adopted, larger rolling force can be provided, the linear velocity of a roller at one side of the titanium layer is smaller than that of a roller at one side of the steel layer, the asynchronous ratio is 2-4, and the outlet velocity of a rolled piece is 3-6 m/min, so that the one side of the titanium layer is rolled at a low speed and is stressed greatly, a coating layer with the thickness of 5-10 mm can be fixed on the base layer, and the requirement of effectively fixing the titanium layer and the aluminum layer on the steel layer is met.
The traditional asynchronous rolling is mainly applied to processing ultrathin plates, the asynchronous ratio is generally less than 2, and the outlet speed of a rolled piece is generally greater than 8 m/min. However, the thickness of the aluminum layer in the plate and the rolled piece of the invention is 0.5 mm-1 mm, the total thickness of the aluminum layer and the titanium layer is 1 mm-2 mm, and the thickness of the steel layer is 3 mm-40 mm, so that the traditional asynchronous rolling parameters cannot be used. The rolling parameters meeting the thickness requirement are counted through a long-term variable test by combining materials and rolling parameters.
The finished product processed by the processing method is applied to corrosion resistance of the flue, the service life of the finished product can be prolonged to 10 years from 3 years, and the method has wide application prospect.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of the present invention.
In the figures, the meaning of the reference numerals is as follows:
the composite plate comprises a titanium layer 1, an aluminum layer 2, a steel layer 3, a heating furnace 4, an upper guide roller 5-1, a lower guide roller 5-2, an upper roller 6-1, a lower roller 6-2 and a composite plate 7.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
The corrosion-resistant composite board shown in fig. 1 comprises a titanium layer, an aluminum layer and a steel layer which are sequentially laminated and compounded, wherein the thickness of the aluminum layer is 0.5-1 mm, the total thickness of the aluminum layer and the titanium layer is 1-2 mm, and the thickness of the steel layer is 3-40 mm.
Further, in some embodiments, the composite plate is formed by asynchronous rolling, and the asynchronous rolling can provide a larger rolling force, has higher precision, is suitable for processing a thicker object, and meets the thickness requirement of a finished product in the invention. The asynchronous rolling softens the aluminum, the deformation of the aluminum material is more than 60 percent in the rolling process, and other metals basically have no deformation.
Before asynchronous rolling, the aluminum layer and the steel layer are heated to 200-300 ℃. The temperature is the plastic deformation temperature of the aluminum, but the plastic deformation temperature of the steel is far not reached, so the aluminum layer is heated by the temperature, and the titanium layer and the steel layer can be better deformed and glued by the aluminum; meanwhile, the steel layer is heated, so that the heat preservation effect on the aluminum layer can be achieved during rolling, the aluminum layer is always in a temperature area of plastic deformation, and the rolling effect can be guaranteed.
Further, in some embodiments, the asynchronous rolling has a linear speed of the roller on the side of the titanium layer smaller than that of the roller on the side of the steel layer. The rollers of the one layer at a lower speed are able to provide a greater force to the cladding layer on that side, causing greater deformation of the titanium and aluminium layers on that side, and thus fixing to the steel layer as the base layer. The traditional asynchronous rolling is mainly applied to processing ultrathin plates, the asynchronous ratio is generally less than 2, and the outlet speed of a rolled piece is generally greater than 8 m/min. However, the thickness of the aluminum layer in the plate and the rolled piece of the invention is 0.5 mm-1 mm, the total thickness of the aluminum layer and the titanium layer is 1 mm-2 mm, and the thickness of the steel layer is 3 mm-40 mm, so that the traditional asynchronous rolling parameters cannot be used. The rolling parameters meeting the thickness requirement are calculated through a long-term variable test by combining materials and rolling parameters.
Further, in certain embodiments, the aluminum layer and the steel layer are hot air heated by a heating furnace.
Further, in some embodiments, after the asynchronous rolling, the composite plate is annealed at a temperature of 300 ℃ to 400 ℃. The annealing temperature is the annealing temperature of the aluminum, so that the stress of the aluminum layer can be released, the ductility and the toughness of the aluminum layer can be increased, and the post-bending treatment is facilitated. And the annealing temperature does not cause adverse effects on the titanium layer and the steel layer.
The invention also discloses a preparation method of the corrosion-resistant composite plate, which comprises the following steps of:
selecting a titanium layer, an aluminum layer and a steel layer, wherein the thickness of each layer meets the requirements that the thickness of the aluminum layer is 0.5-1 mm, the total thickness of the aluminum layer and the titanium layer is 1-2 mm, and the thickness of the steel layer is 3-40 mm;
secondly, conveying the aluminum layer and the steel layer into a heating furnace, heating the aluminum layer and the steel layer in the heating furnace to 200-300 ℃, and then conveying the aluminum layer and the steel layer out of an outlet of the heating furnace;
thirdly, stacking and arranging the titanium layer at normal temperature and the aluminum layer and the steel layer which are just transported out of the heating furnace in the sequence of the titanium layer, the aluminum layer and the steel layer from top to bottom, and carrying out asynchronous rolling; when the rolling is asynchronous, the linear velocity of the roller positioned at one side of the titanium layer is less than that of the roller positioned at one side of the steel layer;
step four, annealing the composite plate after the asynchronous rolling is finished;
and step five, cooling the annealed composite board, and finishing the preparation.
Preferably, in the specific embodiment of the present invention, the annealing temperature is 300 ℃ to 400 ℃. The asynchronous rolling adopted by the invention has large rolling force, the affected area can be controlled to be in the cladding area, and the control temperature is in the plastic deformation temperature range of the aluminum, so that two means ensure that the aluminum deforms in the rolling process and other two metals do not deform, only the aluminum generates work hardening in the three metals, and the subsequent heat treatment only needs to consider the aluminum, namely the aluminum is annealed at the temperature of 300-400 ℃.
The benefits of such a post-heat treatment of only aluminum are:
1. the complete annealing temperature of the aluminum material does not influence the material properties of titanium and steel;
2. the composite interface does not generate intermetallic compounds which influence the composite strength at the complete annealing temperature of the aluminum material;
3. the heat treatment temperature is low, so the heat treatment cost is low.
Preferably, in a specific embodiment of the present invention, the titanium layer, the aluminum layer and the steel layer are sequentially stacked and then subjected to roller orientation and then asynchronous rolling.
The corrosion-resistant composite board prepared by the preparation method. When the finished product is used, the titanium layer is used as the layer closest to the acidic corrosive environment, the steel layer is attached to the inner wall of the flue and fixed, the steel layer is used for corrosion resistance of the flue, and the service life of the steel layer can be prolonged from 3 years to 10 years.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (9)
1. A corrosion-resistant composite board, characterized in that: the aluminum-based composite material comprises a titanium layer, an aluminum layer and a steel layer which are sequentially superposed and compounded, wherein the thickness of the aluminum layer is 0.5-1 mm, the total thickness of the aluminum layer and the titanium layer is 1-2 mm, and the thickness of the steel layer is 3-40 mm;
the composite plate is formed by asynchronous rolling; before asynchronous rolling, the aluminum layer and the steel layer are heated to 200-300 ℃.
2. The corrosion resistant composite panel of claim 1, wherein: during asynchronous rolling, the linear velocity of a roller positioned on one side of the titanium layer is smaller than that of a roller positioned on one side of the steel layer, the asynchronous ratio is 2-4, and the outlet speed of a rolled piece is 3-6 m/min.
3. The corrosion resistant composite panel of claim 1, wherein: and the aluminum layer and the steel layer are heated by hot air through a heating furnace.
4. The corrosion resistant composite panel of claim 2, wherein: after asynchronous rolling, the composite board is annealed at the temperature of 300-400 ℃.
5. The corrosion resistant composite panel of claim 2, wherein: the titanium layer is TA1 or TA2 or TA 3; the aluminum layer is of the grade 1050 or 1060 or 1100.
6. The preparation method of the corrosion-resistant composite board is characterized by comprising the following steps: comprises the following steps which are executed in sequence:
selecting a titanium layer, an aluminum layer and a steel layer, wherein the thickness of each layer meets the requirements that the thickness of the aluminum layer is 0.5-1 mm, the total thickness of the aluminum layer and the titanium layer is 1-2 mm, and the thickness of the steel layer is 3-40 mm;
secondly, conveying the aluminum layer and the steel layer into a heating furnace, heating the aluminum layer and the steel layer in the heating furnace to 200-300 ℃, and then conveying the aluminum layer and the steel layer out of an outlet of the heating furnace;
thirdly, stacking and arranging the titanium layer at normal temperature and the aluminum layer and the steel layer which are just transported out of the heating furnace in the sequence of the titanium layer, the aluminum layer and the steel layer from top to bottom, and carrying out asynchronous rolling; when the rolling is asynchronous, the linear velocity of the roller positioned at one side of the titanium layer is less than that of the roller positioned at one side of the steel layer;
step four, annealing the composite plate after the asynchronous rolling is finished;
and step five, cooling the annealed composite board, and finishing the preparation.
7. The method of making a corrosion resistant composite panel according to claim 6, wherein: the annealing temperature is 300-400 ℃.
8. The method of making a corrosion resistant composite panel according to claim 6, wherein: and the titanium layer, the aluminum layer and the steel layer are sequentially stacked, oriented by a guide roller and then subjected to asynchronous rolling.
9. A corrosion-resistant composite panel produced by the production method according to any one of claims 6 to 8.
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CN103538313A (en) * | 2012-12-03 | 2014-01-29 | 黎汉东 | Novel hot-rolled titanium-aluminum-stainless steel compound plate, production method and application thereof |
CN105149354A (en) * | 2014-10-10 | 2015-12-16 | 卢森锴 | Asynchronous hot rolling technology for large-size stainless steel-copper alloy composite boards |
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CN103538313A (en) * | 2012-12-03 | 2014-01-29 | 黎汉东 | Novel hot-rolled titanium-aluminum-stainless steel compound plate, production method and application thereof |
CN105149354A (en) * | 2014-10-10 | 2015-12-16 | 卢森锴 | Asynchronous hot rolling technology for large-size stainless steel-copper alloy composite boards |
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异步轧制技术发展概况及其应用前景;孙蓟泉;《鞍钢技术》;20091031(第359期);第1-6页 * |
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