CN112090961A - Layered titanium-aluminum-steel composite strip coil material and preparation method thereof - Google Patents
Layered titanium-aluminum-steel composite strip coil material and preparation method thereof Download PDFInfo
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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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
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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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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/383—Cladded or coated products
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
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Abstract
The invention discloses a layered titanium-aluminum-steel composite strip coil material and a preparation method thereof, wherein the preparation method comprises the following steps: an aluminum strip coil is taken as a base material, a pure titanium strip coil is compounded on the upper surface of the aluminum strip coil, and a stainless steel strip coil is compounded on the lower surface of the aluminum strip coil; the thickness ratio of the aluminum strip coil to the pure titanium strip coil to the stainless steel strip coil is 8: 1.5-3: 2-3. The production process flow comprises the following steps: uncoiling, surface treatment, heating, rolling, coiling, annealing and finished coiled material production, wherein the production procedures in the process flow are continuous production line type production except annealing. The composite coiled material prepared by the invention has the characteristics of corrosion resistance, wear resistance, no toxicity, antibiosis, magnetic conductivity and good heat conductivity; and greatly improves the interlayer binding force of the composite strip coil material.
Description
Technical Field
The invention relates to the technical field of titanium composite materials, in particular to a layered titanium-aluminum-steel composite strip coil material and a preparation method thereof.
Background
The metal laminated composite board is prepared by two or more metal boards with different properties through a special composite processing method, combines the respective advantages of two or more metal components, and can obtain comprehensive properties which are not possessed by any single metal. At present, the metal composite plates commonly used in actual industrial production are: stainless steel composite panels, nickel/steel composite panels, copper/steel composite panels, titanium/aluminum composite panels, titanium/steel composite panels, and the like.
Titanium and titanium alloy have outstanding advantages such as high specific strength, low density, good toughness and corrosion resistance, and are widely applied to the fields of aerospace, petrochemical industry, oceans and the like, but the cost is high, so how to reduce the cost of titanium alloy layered materials is the key to whether titanium alloy layered materials can be widely applied. At present, titanium-steel composite strip coils and titanium-aluminum composite strip coils are widely applied, and the production and the compounding of dissimilar layered metal materials are mainly carried out by adopting methods such as explosion compounding, explosion-rolling compounding, hot rolling compounding and the like, the industrial production thickness is more than 4.0mm, the process is complex, continuous production cannot be carried out, the production efficiency is low, the product quality is greatly influenced by environment and other process conditions, and the product quality is unstable; and causes noise, vibration, smoke pollution and the like to the environment.
In recent years, with the wide application of titanium-based composite strip coils in civil industries such as high-end kitchenware, home decoration, building, high-end chemical industry and the like, the requirement on the thickness of the composite strips is thinner and thinner, the cost reduction of the composite strips becomes a development trend, and meanwhile, the problem of interlayer peeling of the composite strips is solved, and the problem to be solved in the field of composite laminated materials is also ensured.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a layered titanium-aluminum-steel composite strip coil material and a preparation method thereof, wherein the titanium-aluminum-steel composite strip coil is prepared through material and process design, the thickness of the titanium-aluminum-steel composite strip coil can reach 1.4mm, the characteristics of titanium, aluminum and stainless steel are fully utilized, and the obtained composite coiled material has the characteristics of corrosion resistance, wear resistance, no toxicity, antibiosis, magnetic conductivity and good heat conductivity; and greatly improves the interlayer binding force of the composite strip coil material.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
A laminated titanium-aluminum-steel composite strip coil material comprises: an aluminum strip coil is taken as a base material, a pure titanium strip coil is compounded on the upper surface of the aluminum strip coil, and a stainless steel strip coil is compounded on the lower surface of the aluminum strip coil; the thickness ratio of the aluminum strip coil to the pure titanium strip coil to the stainless steel strip coil is 8: 1.5-3: 2-3.
The technical scheme of the invention has the characteristics and further improvements that:
further, the thickness of the layered titanium-aluminum-steel composite strip coil material is 1.4-4.0 mm, wherein the thickness of the aluminum strip coil is 0.8-2.2 mm, the thickness of the pure titanium strip coil is 0.3-0.9 mm, and the thickness of the stainless steel strip coil is 0.3-0.9 mm.
Further, the widths of the aluminum strip coil, the pure titanium strip coil and the stainless steel strip coil are equal.
Further, the material brand of the pure titanium strip coil is TA1 or TA2, the material brand of the aluminum strip coil is 1050, 1060, 3003 or 3005, and the material brand of the stainless steel strip coil is 430, 445, 304, 310 or 316.
(II) a preparation method of the layered titanium-aluminum-steel composite strip coil material, which comprises the following steps:
step 1, respectively loading a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material onto corresponding uncoiling equipment, so that the aluminum strip coil raw material is positioned in the middle position, and the pure titanium strip coil raw material and the stainless steel strip coil raw material are respectively positioned on the upper side and the lower side of the aluminum strip coil raw material;
and 2, uncoiling the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material at the same time, simultaneously feeding the three strip coil raw materials into a flow water treatment device at the same transmission rate for composite rolling treatment to obtain a composite strip coil primary product, and annealing the composite strip coil primary product to obtain a composite strip coil finished product, namely the layered titanium-aluminum-steel composite strip coil material.
The technical scheme of the invention has the characteristics and further improvements that:
further, the transmission speed is 1-10 m/min.
Further, the compound rolling treatment comprises the following steps: sequentially carrying out surface treatment, heating and rolling on a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material at the same time to obtain a composite rolled product; and coiling the composite rolled product to obtain a composite strip coil primary product.
Furthermore, the surface treatment is polishing treatment by using a polisher, wherein the rotation speed of a grinding head of the polisher is 100-1500 r/min, and the pressure is 0.1-75 MPa.
Furthermore, the heating process parameters are as follows: heating temperatures of the pure titanium strip coil raw material on the upper layer and the stainless steel strip coil raw material on the lower layer are respectively 100-300 ℃; the heating temperature of the aluminum strip coil raw material of the middle layer is 200-450 ℃.
Furthermore, the rolling deformation is 15-40%, the rolling speed is 1-10m/min, and the rolling pressure is 5-17 MN.
Further, the winding tension is 10 to 40 KN.
Furthermore, the annealing treatment is vacuum annealing, the annealing temperature is 400-520 ℃, and the annealing time is 1-4 h.
Compared with the prior art, the invention has the beneficial effects that:
(1) the composite coiled material prepared by the invention has the corrosion resistance, wear resistance, good biocompatibility and health property of titanium, simultaneously achieves good heat conductivity and soaking property through the aluminum intermediate layer, achieves attractive appearance, corrosion resistance and good magnetic conductivity through the stainless steel at the outer layer, and can be suitable for an electromagnetic heating environment; therefore, the composite coiled material has wide application prospect and market demand in the field of high-end kitchenware.
(2) The preparation process can prepare the titanium-aluminum-steel composite strip coil with the thickness of 1.4mm, saves raw materials and realizes the lightweight kitchen ware.
(3) The preparation process of the invention is flow line type treatment, greatly improves the stability of product quality, avoids the product performance fluctuation caused by environment change in the traditional preparation process, has one-step molding of products, short production period and further reduces the cost.
(4) According to the invention, through the design of materials and a preparation process, the prepared titanium-aluminum-steel three-layer composite coiled material has strong interlayer bonding force and excellent composite performance.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic flow chart of a preparation process according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a sample in a peel force test according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention.
Example 1
Referring to fig. 1, the method for preparing a laminated titanium-aluminum-steel composite strip coil material of the present invention comprises the following steps:
step 1, respectively loading a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material onto corresponding uncoiling equipment, so that the aluminum strip coil raw material is positioned in the middle position, and the pure titanium strip coil raw material and the stainless steel strip coil raw material are respectively positioned on the upper side and the lower side of the aluminum strip coil raw material; the specifications of the raw materials are respectively as follows: raw materials of the pure titanium strip coil: the trade mark TA1, thickness 0.5 mm. Stainless steel strip coil material, number sus430, thickness 0.6 mm. Aluminum strip coil raw materials: grade 1060, thickness 2.3 mm.
Step 2, uncoiling the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material simultaneously, wherein the uncoiling tension of the aluminum strip coil raw material is 30KN, the uncoiling tension of the pure titanium strip coil raw material and the stainless steel strip coil raw material is 45KN, the three strip coil raw materials simultaneously enter a flow water treatment device at the same transmission rate of 5m/min for composite rolling treatment, and the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material are subjected to surface treatment, heating and rolling simultaneously in sequence to obtain a composite rolled product; and coiling the composite rolled product to obtain a composite strip coil primary product. Wherein the surface treatment is polishing treatment by a polisher, the rotation speed of a grinding head of the polisher is 600r/min, and the pressure is 0.3-0.7 MPa; the heating process parameters are as follows: heating temperatures of the pure titanium strip coil raw material at the upper layer and the stainless steel strip coil raw material at the lower layer are respectively 180 ℃; the heating temperature of the aluminum strip coil raw material of the middle layer is 280 ℃; the rolling speed is 5m/min, and the rolling pressure is 14 MN; the tension of the winding was 25 KN. And (3) annealing the primary composite strip coil at 480 ℃ for 2h to obtain a finished composite strip coil, namely the layered titanium-aluminum-steel composite strip coil material with the thickness of 2.3mm, wherein the aluminum layer is 1.5mm, the titanium layer is 0.35mm, and the stainless steel layer is 0.45 mm.
Example 2
Referring to fig. 1, a method for preparing a layered titanium-aluminum-steel composite strip coil material comprises the following steps:
step 1, respectively loading a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material onto corresponding uncoiling equipment, so that the aluminum strip coil raw material is positioned in the middle position, and the pure titanium strip coil raw material and the stainless steel strip coil raw material are respectively positioned on the upper side and the lower side of the aluminum strip coil raw material; the specifications of the raw materials are respectively as follows: raw materials of the pure titanium strip coil: the trade mark TA2, thickness 0.3 mm. Stainless steel strip coil raw material, number sus310, thickness 0.4 mm. Aluminum strip coil raw materials: the trade mark 3003, thickness 1.8 mm.
Step 2, uncoiling the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material simultaneously, wherein the uncoiling tension of the aluminum strip coil raw material is 25KN, the uncoiling tension of the pure titanium strip coil raw material and the stainless steel strip coil raw material is 40KN, the three strip coil raw materials simultaneously enter a flow water treatment device at the same transmission rate of 8m/min for composite rolling treatment, and the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material are subjected to surface treatment, heating and rolling simultaneously in sequence to obtain a composite rolled product; and coiling the composite rolled product to obtain a composite strip coil primary product. Wherein the surface treatment is polishing treatment by adopting a polisher, the rotation speed of a grinding head of the polisher is 800r/min, and the pressure is 0.3-0.6 MPa; the heating process parameters are as follows: heating temperatures of the pure titanium strip coil raw material at the upper layer and the stainless steel strip coil raw material at the lower layer are respectively 200 ℃; the heating temperature of the aluminum strip coil raw material of the middle layer is 280 ℃; the rolling speed is 3m/min, and the rolling pressure is 17 MN; the tension of the winding was 20 KN. And (3) annealing the primary composite strip coil at the temperature of 420 ℃ for 3h to obtain a finished composite strip coil, namely the layered titanium-aluminum-steel composite strip coil material with the thickness of 1.4mm, wherein the aluminum layer is 0.85mm, the titanium layer is 0.25mm, and the stainless steel layer is 0.3 mm.
Example 3
Referring to fig. 1, a method for preparing a layered titanium-aluminum-steel composite strip coil material comprises the following steps:
step 1, respectively loading a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material onto corresponding uncoiling equipment, so that the aluminum strip coil raw material is positioned in the middle position, and the pure titanium strip coil raw material and the stainless steel strip coil raw material are respectively positioned on the upper side and the lower side of the aluminum strip coil raw material; the specifications of the raw materials are respectively as follows: raw materials of the pure titanium strip coil: the trade mark TA1, thickness 0.6 mm. Stainless steel strip coil material, number sus430, thickness 0.8 mm. Aluminum strip coil raw materials: grade 1060, thickness 2.6 mm.
Step 2, uncoiling the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material simultaneously, wherein the uncoiling tension of the aluminum strip coil raw material is 35KN, the uncoiling tension of the pure titanium strip coil raw material and the stainless steel strip coil raw material is 50KN, the three strip coil raw materials simultaneously enter a flow water treatment device at the same transmission rate of 5m/min for composite rolling treatment, and the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material are subjected to surface treatment, heating and rolling simultaneously in sequence to obtain a composite rolled product; and coiling the composite rolled product to obtain a composite strip coil primary product. Wherein the surface treatment is polishing treatment by a polisher, the rotation speed of a grinding head of the polisher is 700r/min, and the pressure is 0.5-0.8 MPa; the heating process parameters are as follows: the heating temperatures of the pure titanium strip coil raw material at the upper layer and the stainless steel strip coil raw material at the lower layer are 220 ℃; the heating temperature of the aluminum strip coil raw material of the middle layer is 300 ℃; the rolling speed is 5m/min, and the rolling pressure is 17 MN; the tension of the winding was 30 KN. And (3) annealing the primary composite strip coil at 500 ℃ for 2h to obtain a finished composite strip coil, namely the layered titanium-aluminum-steel composite strip coil material with the thickness of 2.8mm, wherein the aluminum layer is 1.8mm, the titanium layer is 0.4mm, and the stainless steel layer is 0.6 mm.
The tensile property, peeling property and cupping property of the product prepared by the examples of the invention and the commercially available titanium-aluminum-steel composite coiled material are respectively tested, and the results are shown in table 2. Wherein, the commercial sample is titanium aluminum steel composite coiled material produced by Hebei Handan factory, wherein the specification of sample 1 is 2.8mm 1000mm, and the specification of sample 2 is 2.3mm 1000 mm. The product specification of the invention is as follows: thickness: 1.4-4.0 mm, width: 500-1200 mm, length: the length of a single roll is less than or equal to 2000m, and the weight of the single roll is as follows: less than or equal to 10000 kg.
The tensile properties of the test specimens according to the invention were tested in accordance with GB/T228.1-2010.
The cupping test of the samples of the invention was carried out according to GB/T4156-2007.
The peel force test of the inventive samples was performed as follows:
the principle of the peel force test is as follows: the composite sheet is separated from the substrate by a pulling force at a constant rate. And (3) adopting a tensile test device to carry out peeling force test on the samples obtained in the embodiments, wherein the specific process comprises the following steps:
preparation of a sample: the length and the width of the sample are finished by machining, and the separation of two layers of metal materials (titanium aluminum and stainless steel aluminum) is finished by linear cutting; the prepared samples are shown in fig. 2, and the sample sizes are shown in table 1. In table 1, L0 is the total length of the specimen, h0 is the total specimen thickness, h1 is the composite thickness, a0 is the specimen width, S0 is the original cross-sectional area of the parallel length, and L1 is the length of the specimen wire cut.
TABLE 1 sample size
| L0/mm | h0/mm | h1/mm | a0/mm | S0/mm | L1/mm |
| 16.0-16.5 | 1.0-3.0 | 0.3-0.5 | 20 | / | 40 |
Peeling test: generally in the room temperature range of 10 ℃ to 35 ℃. Clamping the thin edge of the sample into an upper chuck, clamping the thick edge of the sample into a lower chuck, wherein the separation rate of the sample chuck is (100 +/-5) mm/min; in the peeling test, a force-to-gripping distance relationship curve (force-to-peeling length relationship curve) was automatically recorded, and a length of at least 115mm (230 mm in both directions) was peeled, excluding the length of 25mm from the initial peeling. From the automatically recorded curves, the average peel force per unit width of the sample was calculated in N/mm over an effective peel length of at least 115mm (excluding the first 25mm and the end 20mm of the peel).
TABLE 2 results of performance testing of various examples of the invention and commercial products
As can be seen from the results in Table 2, compared with the samples sold in the market, the tensile property, the peel value and the cupping property of the product prepared by the method are improved to a certain extent, particularly the peel value of the product is obviously improved, which shows that the product has stronger interlayer bonding force, solves the interlayer peeling problem of the existing multilayer composite tape coiled material, can prepare a multilayer composite tape coil with the total thickness of 1.4mm, and meets the market demand.
In each embodiment of the invention, referring to fig. 1, 1# uncoiling uses an aluminum coil with tension of 5-60 KN; uncoiling No. 2 by using a titanium strip coil with the tension of 10-90 KN; the No. 3 uncoiling uses a stainless steel strip coil with the tension of 10-90KN, so that the raw materials are not easy to deviate in the whole production line production process. Surface treatment: respectively polishing the lower surface of a titanium strip, the upper and lower surfaces of an aluminum strip and the upper surface of stainless steel by using a continuous online polisher by using surface treatment equipment to expose fresh metal on each composite interface, wherein the roughness Ra is 0.5-4.0; heating: the titanium strip and the stainless steel strip are heated at the temperature of 300 ℃ for 100 DEG and at the temperature of 450 ℃ for the aluminum strip, so that the metal deformation resistance is reduced, and the composition is easier. And (3) composite rolling: and performing compound rolling according to the total deformation of 15-40%, the rolling speed of 1-10m/min and the rolling force of 5-17MN, so that the three metals are preliminarily compounded to obtain the semi-finished coiled material. And coiling the semi-finished coiled material at the tension of 10-40KN, wherein the semi-finished coiled material is easy to loose the layer when the tension is too low, and the friction between metals is easy to cause when the tension is too high, so that scratches are generated and the surface quality of the finished product is influenced. And finally, carrying out finished product vacuum annealing on the rolled semi-finished product, greatly improving the composite strength, eliminating stress and reducing work hardening so as to obtain a finished product titanium-aluminum-steel composite strip coil.
In the preparation process, the three coil materials are simultaneously and separately processed in the surface treatment, heating and other treatment processes before rolling, namely, the three coil materials are respectively processed in three closed treatment modules in each treatment device. The invention can simultaneously carry out the rolling pretreatment on the plurality of strip coils and simultaneously carry out the production line type treatment on the plurality of strip coils, thereby greatly accelerating the production efficiency.
The titanium surface of the product produced by the invention is corrosion-resistant, antibacterial, free of heavy metal, and good in biocompatibility and wear resistance, so that the product can be applied to industries such as high-end kitchenware, medical treatment, chemical industry and the like; the middle aluminum layer has fast heat conduction and small density, so that the product has even heat conduction and light weight; the stainless steel surface is smooth, has metal texture and good magnetic conductivity, can make the appearance good, and can use electromagnetic heating. The combination of the three raw materials ensures that the product has the excellent performances of the three raw materials at the same time, and the cost is greatly reduced.
Although the present invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A laminated titanium-aluminum-steel composite strip coil material is characterized by comprising: an aluminum strip coil is taken as a base material, a pure titanium strip coil is compounded on the upper surface of the aluminum strip coil, and a stainless steel strip coil is compounded on the lower surface of the aluminum strip coil; the thickness ratio of the aluminum strip coil to the pure titanium strip coil to the stainless steel strip coil is 8: 1.5-3: 2-3.
2. The layered titanium-aluminum-steel composite strip-and-roll material as claimed in claim 1, wherein the thickness of the layered titanium-aluminum-steel composite strip-and-roll material is 1.4-4.0 mm, wherein the thickness of the aluminum strip-and-roll is 0.8-2.2 mm, the thickness of the pure titanium strip-and-roll is 0.3-0.9 mm, and the thickness of the stainless steel strip-and-roll is 0.3-0.9 mm.
3. The laminated titanium-aluminum-steel composite strip-coil material as claimed in claim 1, wherein the material brand of the pure titanium strip-coil is TA1 or TA2, the material brand of the aluminum strip-coil is 1050, 1060, 3003 or 3005, and the material brand of the stainless steel strip-coil is 430, 445, 304, 310 or 316.
4. The preparation method of the layered titanium-aluminum-steel composite strip coil material is characterized by comprising the following steps of:
step 1, respectively loading a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material onto corresponding uncoiling equipment, so that the aluminum strip coil raw material is positioned in the middle position, and the pure titanium strip coil raw material and the stainless steel strip coil raw material are respectively positioned on the upper side and the lower side of the aluminum strip coil raw material;
and 2, uncoiling the pure titanium strip coil raw material, the aluminum strip coil raw material and the stainless steel strip coil raw material at the same time, simultaneously feeding the three strip coil raw materials into a flow water treatment device at the same transmission rate for composite rolling treatment to obtain a composite strip coil primary product, and annealing the composite strip coil primary product to obtain a composite strip coil finished product, namely the layered titanium-aluminum-steel composite strip coil material.
5. The method for preparing the layered titanium-aluminum-steel composite strip-coil material according to claim 4, wherein the conveying speed is 1-10 m/min.
6. The method for preparing the layered titanium-aluminum-steel composite strip-coil material according to claim 4, wherein the clad-rolling treatment comprises the following steps: sequentially carrying out surface treatment, heating and rolling on a pure titanium strip coil raw material, an aluminum strip coil raw material and a stainless steel strip coil raw material at the same time to obtain a composite rolled product; and coiling the composite rolled product to obtain a composite strip coil primary product.
7. The method for preparing the layered titanium-aluminum-steel composite strip coil material according to claim 6, wherein the surface treatment is grinding treatment by using a grinding machine, the grinding head rotating speed of the grinding machine is 100-1500 r/min, and the pressure is 0.1-75 MPa.
8. The method for preparing the layered titanium-aluminum-steel composite strip coil material according to claim 6, wherein the heating process parameters are as follows: heating temperatures of the pure titanium strip coil raw material on the upper layer and the stainless steel strip coil raw material on the lower layer are respectively 100-300 ℃; the heating temperature of the aluminum strip coil raw material of the middle layer is 200-450 ℃.
9. The method for preparing the layered titanium-aluminum-steel composite strip-coil material as claimed in claim 6, wherein the rolling deformation is 15% -40%, the rolling speed is 1-10m/min, and the rolling pressure is 5-17 MN.
10. The method for preparing the layered titanium-aluminum-steel composite strip coil material according to claim 4, wherein the annealing treatment is vacuum annealing, the annealing temperature is 400-520 ℃, and the annealing time is 1-4 hours.
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| CN113118216A (en) * | 2021-04-15 | 2021-07-16 | 太原理工大学 | Rolling method of aluminum/magnesium/aluminum laminated composite plate with large thickness ratio |
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