CN114043786A - Double-sided adhesive-coated aluminum strip for composite pipe and preparation method thereof - Google Patents
Double-sided adhesive-coated aluminum strip for composite pipe and preparation method thereof Download PDFInfo
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- CN114043786A CN114043786A CN202111319294.0A CN202111319294A CN114043786A CN 114043786 A CN114043786 A CN 114043786A CN 202111319294 A CN202111319294 A CN 202111319294A CN 114043786 A CN114043786 A CN 114043786A
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- 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
- B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
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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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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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
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
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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
- B32B38/0036—Heat treatment
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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
- B32B38/04—Punching, slitting or perforating
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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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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- 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
- B32B38/0036—Heat treatment
- B32B2038/0048—Annealing, relaxing
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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
- B32B2413/00—Belts
Abstract
The invention discloses a double-sided glue-coated aluminum strip for a composite pipe and a preparation method thereof, relates to the technical field of aluminum strips, and aims to solve the problems that most of the existing aluminum strips in the prior art are smooth in surface and poor in strength, are easy to break when subjected to a strong shearing acting force, and are not firmly bonded with the composite pipe, so that the use performance of the composite pipe is influenced. Bonding grooves are symmetrically formed above and below the aluminum strip respectively, four bonding grooves are formed in the bonding grooves, through holes are formed in the aluminum strip along two sides of each bonding groove, reinforcing steel wires are arranged in the aluminum strip, and the aluminum strip is fixedly connected with the reinforcing steel wires; the preparation components of the aluminum strip comprise the following components in parts by weight: copper: 0.04-0.25%, zinc: 0.1-0.3%, iron: 0.5-0.7%, silicon: 0.4-0.7%, manganese: 1-1.5 percent, and the balance of aluminum and other impurities.
Description
Technical Field
The invention relates to the technical field of aluminum strips, in particular to a double-sided rubber-coated aluminum strip for a composite pipe and a preparation method thereof.
Background
The aluminum strip is a metal material, the aluminum strip is cut into different aluminum processing products through aluminum coil, the aluminum strip is an important raw material in industry, the raw material is pure aluminum or aluminum alloy cast-rolled aluminum coil and hot-rolled aluminum coil, the aluminum strip is rolled into sheet aluminum coils with different thicknesses and widths through a cold rolling mill, the aluminum strip is longitudinally cut into aluminum strips with different widths through a slitting machine according to the application, the aluminum strip and the aluminum plate are the same and are divided into a plurality of series according to different alloy elements contained in the aluminum strip, the aluminum strip can be divided into full-soft, half-hard and full-hard materials according to different annealing states of the aluminum strip, the application of the aluminum strip is multiple, the aluminum strip is arranged in the composite tube, the performance of the composite tube can be improved, and the service life of the composite tube is prolonged.
However, most of the existing aluminum strips are smooth in surface and poor in strength, are easy to break under strong shearing acting force, and are not firmly bonded with the composite pipe, so that the use performance of the composite pipe is affected; therefore, the market urgently needs to develop a double-sided rubber coated aluminum strip for a composite pipe and a preparation method thereof to help people solve the existing problems.
Disclosure of Invention
The invention aims to provide a double-sided adhesive coated aluminum strip for a composite pipe and a preparation method thereof, and aims to solve the problems that most of the existing aluminum strips in the background art are smooth in surface and poor in strength, are easy to break when subjected to strong shearing acting force, and are not firmly bonded with the composite pipe, so that the use performance of the composite pipe is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a double-sided gluing aluminum tape for a composite tube comprises an aluminum tape, wherein bonding grooves are symmetrically formed above and below the aluminum tape respectively, four bonding grooves are formed in the bonding grooves, through holes are formed in the aluminum tape along two sides of each bonding groove, reinforcing steel wires are arranged in the aluminum tape, and the aluminum tape is fixedly connected with the reinforcing steel wires;
the preparation components of the aluminum strip comprise the following components in parts by weight: copper: 0.04-0.25%, zinc: 0.1-0.3%, iron: 0.5-0.7%, silicon: 0.4-0.7%, manganese: 1-1.5 percent, and the balance of aluminum and other impurities.
A preparation method of a double-sided rubber-coated aluminum strip for a composite tube comprises the following steps:
the method comprises the following steps: according to the ingredients of each component of the aluminum strip, firstly putting an aluminum ingot into a smelting furnace for melting, then sequentially putting other ingredients into the smelting furnace for stirring, and fully mixing the ingredients to form an aluminum alloy liquid;
step two: leading out the aluminum alloy liquid, preparing an aluminum alloy ingot with the thickness of 400mm by adopting a semi-continuous casting method, and scraping impurities on the surface of the aluminum alloy ingot by a surface scraper so as to enable the surface of the aluminum alloy ingot to be flat and smooth;
step three: hot rolling the aluminum alloy cast ingot for multiple times until the aluminum alloy cast ingot becomes an aluminum alloy plate with the thickness of 20mm, and then cold rolling the aluminum alloy plate for multiple times until the thickness of the aluminum alloy plate is 2 mm;
step four: putting the aluminum alloy plates into an annealing furnace for annealing treatment, then laminating the two aluminum alloy plates, and putting a reinforcing steel wire between the two aluminum alloy plates;
step five: carrying out composite rolling on the composite aluminum alloy plate through a composite rolling machine, carrying out hot rolling on the composite rolled plate until the thickness of the plate is 1mm, and forming a strip;
step six: then, the strip is placed into an annealing furnace for annealing treatment, and then is cut by a splitting machine to obtain an aluminum strip;
step seven: and then, etching the bonding groove on the aluminum strip by a nicking machine, processing a through hole on the aluminum strip by a perforating machine, and finally rolling the aluminum strip by a rolling machine.
Preferably, in the step one, the temperature of the smelting furnace is 700-.
Preferably, in the second step, the scraping thickness of the surface scraper is 3 mm.
Preferably, in the third step, the hot rolling temperature is 455-550 ℃, and a cooling liquid with the temperature of 80-90 ℃ and the temperature of 95% of water and 5% of oil is adopted in the hot rolling process, and a cooling liquid with the temperature of 26-28 ℃ and the temperature of 95% of water and 5% of oil is adopted in the cold rolling process.
Preferably, in the fourth step, the temperature of the annealing furnace is 420-580 ℃, the temperature of the aluminum alloy plate is raised and kept for 8-10h, then the temperature is reduced to 350 ℃ and kept for 2h, then the aluminum alloy plate is taken out of the furnace and cooled, and the diameter of the reinforcing steel wire is 0.4 mm.
Preferably, in the fifth step, the hot rolling temperature is 480-590 ℃, and a cooling liquid with the temperature of 80-90 ℃ and the temperature of 95% of water and 5% of oil is adopted in the hot rolling process.
Preferably, in the sixth step, the temperature of the annealing furnace is 380-520 ℃, the temperature of the aluminum alloy plate is raised and kept for 6-8h, then the temperature is reduced to 300 ℃ and kept for 2h, and then the aluminum alloy plate is taken out of the furnace and cooled.
Preferably, in the seventh step, the bonding groove is arc-shaped, the depth of the notch is 0.1mm, the width of the notch is 1mm, and the diameter of the through hole is 3 mm.
Preferably, in the seventh step, the bonding groove is linear, and has a score depth of 0.1mm, a width of 1mm, and a through hole diameter of 3 mm.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the aluminum strip, the bonding grooves, the through holes and the reinforcing steel wires are formed in the aluminum strip, so that the strength of the aluminum strip and the bonding capacity with the composite pipe can be improved, the bonding grooves are formed in the two end faces of the aluminum strip, the roughness of the surface of the aluminum strip can be effectively increased, the bonding firmness of the aluminum strip and the composite pipe is improved, the through holes are formed in the two sides of the bonding grooves, the connectivity of the two end faces of the aluminum strip can be improved, the colloid connection of the two end faces of the aluminum strip is facilitated, the connectivity and integrity of the aluminum strip and the colloid are improved, the bonding firmness of the aluminum strip and the composite pipe is further improved, the reinforcing steel wires are arranged in the aluminum strip, the strength of the aluminum strip can be improved, the bearing acting force of the aluminum strip is improved, the aluminum strip is prevented from being broken, the shearing acting force which can be born by the aluminum strip is effectively improved, and the using performance of the composite pipe is improved.
2. According to the invention, multiple times of hot rolling and cold rolling are carried out in the preparation process of the aluminum strip, wherein the hot rolling can destroy the casting structure of the aluminum alloy ingot, refine the crystal grains of the aluminum alloy ingot and eliminate the defects of the microstructure, so that the structure of the aluminum alloy ingot is compact, the mechanical property is improved, meanwhile, bubbles, cracks and looseness formed in the pouring process can be welded together under the action of high temperature and pressure, and the cold rolling can enable the aluminum alloy ingot to generate large plastic deformation, so that the yield point of the aluminum strip is improved, the shaping of the aluminum strip is increased, and the performance of the aluminum strip is improved.
3. According to the invention, two aluminum alloy strips are jointed, and the reinforcing steel wire is arranged between the aluminum alloy, so that the integrity of the connection between the reinforcing steel wire and the aluminum alloy can be increased, the improvement of the compression resistance and the shearing resistance of the aluminum strip is facilitated, and the strength of the aluminum strip is increased.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of a double-sided rubberized aluminum tape for a composite pipe according to the present invention;
FIG. 2 is a schematic view of an embodiment 2 of a double-faced rubberized aluminum tape for a composite pipe according to the present invention;
fig. 3 is a cross-sectional view of a double-faced rubberized aluminum tape for a composite pipe according to the invention.
In the figure: 1. an aluminum strip; 2. bonding the grooves; 3. a through hole; 4. and (7) reinforcing steel bars.
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.
Example 1
Referring to fig. 1-3, an embodiment of the present invention is shown: a double-sided gluing aluminum tape for a composite tube comprises an aluminum tape 1, wherein bonding grooves 2 are symmetrically formed above and below the aluminum tape 1 respectively, four bonding grooves 2 are formed in the aluminum tape 1, through holes 3 are formed in the aluminum tape 1 along two sides of each bonding groove 2, reinforcing steel wires 4 are arranged in the aluminum tape 1, and the aluminum tape 1 is fixedly connected with the reinforcing steel wires 4; the preparation components of the aluminum strip comprise the following components in parts by weight: copper: 0.04-0.25%, zinc: 0.1-0.3%, iron: 0.5-0.7%, silicon: 0.4-0.7%, manganese: 1-1.5%, the surplus is aluminium and other impurity, bonding groove 2's setting, can effectively increase the roughness on 1 surface in aluminium strip, improve the bonding fastness of aluminium strip 1 and compound pipe, perforating hole 3's setting, the connectivity of 1 two terminal surfaces in aluminium strip has been increased, be convenient for the colloid of 1 both ends face in aluminium strip is connected, improve the connectivity and the wholeness of aluminium strip 1 and colloid, further increase the fastness that aluminium strip 1 and compound pipe bonded, reinforcing bar 4's setting, can increase the intensity in aluminium strip 1, improve the pressure-bearing effort in aluminium strip 1, prevent that aluminium strip 1 from breaking.
A preparation method of a double-sided rubber-coated aluminum strip for a composite tube comprises the following steps:
the method comprises the following steps: according to the ingredients of each component of the aluminum strip, firstly putting an aluminum ingot into a smelting furnace for melting, then sequentially putting other ingredients into the smelting furnace for stirring, and fully mixing the ingredients to form an aluminum alloy liquid;
step two: leading out the aluminum alloy liquid, preparing an aluminum alloy ingot with the thickness of 400mm by adopting a semi-continuous casting method, and scraping impurities on the surface of the aluminum alloy ingot by a surface scraper so as to enable the surface of the aluminum alloy ingot to be flat and smooth;
step three: hot rolling the aluminum alloy cast ingot for multiple times until the aluminum alloy cast ingot becomes an aluminum alloy plate with the thickness of 20mm, and then cold rolling the aluminum alloy plate for multiple times until the thickness of the aluminum alloy plate is 2 mm;
step four: putting the aluminum alloy plates into an annealing furnace for annealing treatment, then laminating the two aluminum alloy plates, and putting a reinforcing steel wire 4 between the two aluminum alloy plates;
step five: carrying out composite rolling on the composite aluminum alloy plate through a composite rolling machine, carrying out hot rolling on the composite rolled plate until the thickness of the plate is 1mm, and forming a strip;
step six: then, the strip is placed into an annealing furnace for annealing treatment, and then is cut by a splitting machine to obtain an aluminum strip;
step seven: and then, etching the bonding groove 2 on the aluminum strip by a nicking machine, processing a through hole 3 on the aluminum strip by a perforating machine, and finally rolling the aluminum strip by a rolling machine.
In the preparation process of the aluminum strip, the casting structure of the aluminum alloy ingot can be damaged by carrying out hot rolling on the aluminum alloy ingot for multiple times, crystal grains of the aluminum alloy ingot are refined, and the defect of a microstructure is eliminated, so that the structure of the aluminum alloy ingot is compact, the mechanical property is improved, bubbles, cracks and looseness formed in the process of simultaneous pouring can also be welded under the action of high temperature and pressure, the aluminum alloy ingot can generate large plastic deformation by carrying out cold rolling on the aluminum alloy ingot for multiple times, the yield point of the aluminum strip 1 is improved, the shaping of the aluminum strip 1 is increased, two strips are attached, and a reinforcing steel wire 4 is arranged in the middle of the strips, so that the compression resistance and the shearing resistance of the aluminum strip 1 can be improved, and the strength of the aluminum strip 1 is increased.
Further, in the first step, the temperature of the smelting furnace is 700-.
Further, in the second step, the thickness of scraping of surface scraper is 3mm, and six sections of aluminum alloy ingot casting are all scraped, can detach the impurity on aluminum alloy ingot casting surface, improve the quality of aluminium strip 1.
Furthermore, in the third step, the hot rolling temperature is 455-550 ℃, the cooling liquid with the temperature of 80-90 ℃ and the temperature of 95 percent of water added with 5 percent of oil is adopted in the hot rolling process, the cooling liquid with the temperature of 26-28 ℃ and the temperature of 95 percent of water added with 5 percent of oil is adopted in the cold rolling process, and the cooling liquid is used, so that the adhesion between the aluminum alloy plate and the roller can be prevented in the hot rolling and cold rolling processes, and the stability of the hot rolling and the cold rolling is improved.
Further, the temperature of the annealing furnace is 420-580 ℃, the aluminum alloy plate is heated and kept for 8-10h, then the temperature is reduced to 350 ℃ and kept for 2h, then the aluminum alloy plate is taken out of the furnace and cooled, the diameter of the steel bar wire 4 is 0.4mm, and the aluminum alloy plate is annealed, so that the cutting processability of the aluminum alloy plate can be improved, the plasticity and the toughness are increased, the chemical components are homogenized, the residual stress is eliminated, the size is stabilized, the deformation and crack tendency is reduced, the crystal grains are refined, the structure is adjusted, the structure defect is eliminated, and the structural stability of the aluminum strip 1 is facilitated.
Further, in the fifth step, the hot rolling temperature is 480-590 ℃, and the cooling liquid with the temperature of 80-90 ℃ and the temperature of 95 percent of water added with 5 percent of oil is adopted in the hot rolling process, so that the adhesion between the aluminum alloy plate and the roller can be prevented in the hot rolling process by using the cooling liquid, and the hot rolling stability is improved.
Further, in the sixth step, the temperature of the annealing furnace is 380-520 ℃, the temperature of the aluminum alloy plate is raised and kept for 6-8h, then the temperature is reduced to 300 ℃ and kept for 2h, then the aluminum alloy plate is taken out of the furnace and cooled, and the strip is annealed, so that the performance of the strip can be further improved, and the structural stability of the aluminum strip 1 is improved.
Furthermore, in the seventh step, the bonding groove 2 is arc-shaped, the depth of the notch is 0.1mm, the width is 1mm, and the diameter of the through hole 3 is 3 mm.
Example 2
Referring to fig. 1-3, an embodiment of the present invention is shown: a double-sided gluing aluminum tape for a composite tube comprises an aluminum tape 1, wherein bonding grooves 2 are symmetrically formed above and below the aluminum tape 1 respectively, four bonding grooves 2 are formed in the aluminum tape 1, through holes 3 are formed in the aluminum tape 1 along two sides of each bonding groove 2, reinforcing steel wires 4 are arranged in the aluminum tape 1, and the aluminum tape 1 is fixedly connected with the reinforcing steel wires 4; the preparation components of the aluminum strip comprise the following components in parts by weight: copper: 0.04-0.25%, zinc: 0.1-0.3%, iron: 0.5-0.7%, silicon: 0.4-0.7%, manganese: 1-1.5%, the surplus is aluminium and other impurity, bonding groove 2's setting, can effectively increase the roughness on 1 surface in aluminium strip, improve the bonding fastness of aluminium strip 1 and compound pipe, perforating hole 3's setting, the connectivity of 1 two terminal surfaces in aluminium strip has been increased, be convenient for the colloid of 1 both ends face in aluminium strip is connected, improve the connectivity and the wholeness of aluminium strip 1 and colloid, further increase the fastness that aluminium strip 1 and compound pipe bonded, reinforcing bar 4's setting, can increase the intensity in aluminium strip 1, improve the pressure-bearing effort in aluminium strip 1, prevent that aluminium strip 1 from breaking.
A preparation method of a double-sided rubber-coated aluminum strip for a composite tube comprises the following steps:
the method comprises the following steps: according to the ingredients of each component of the aluminum strip, firstly putting an aluminum ingot into a smelting furnace for melting, then sequentially putting other ingredients into the smelting furnace for stirring, and fully mixing the ingredients to form an aluminum alloy liquid;
step two: leading out the aluminum alloy liquid, preparing an aluminum alloy ingot with the thickness of 400mm by adopting a semi-continuous casting method, and scraping impurities on the surface of the aluminum alloy ingot by a surface scraper so as to enable the surface of the aluminum alloy ingot to be flat and smooth;
step three: hot rolling the aluminum alloy cast ingot for multiple times until the aluminum alloy cast ingot becomes an aluminum alloy plate with the thickness of 20mm, and then cold rolling the aluminum alloy plate for multiple times until the thickness of the aluminum alloy plate is 2 mm;
step four: putting the aluminum alloy plates into an annealing furnace for annealing treatment, then laminating the two aluminum alloy plates, and putting a reinforcing steel wire 4 between the two aluminum alloy plates;
step five: carrying out composite rolling on the composite aluminum alloy plate through a composite rolling machine, carrying out hot rolling on the composite rolled plate until the thickness of the plate is 1mm, and forming a strip;
step six: then, the strip is placed into an annealing furnace for annealing treatment, and then is cut by a splitting machine to obtain an aluminum strip;
step seven: and then, etching the bonding groove 2 on the aluminum strip by a nicking machine, processing a through hole 3 on the aluminum strip by a perforating machine, and finally rolling the aluminum strip by a rolling machine.
In the preparation process of the aluminum strip, the casting structure of the aluminum alloy ingot can be damaged by carrying out hot rolling on the aluminum alloy ingot for multiple times, crystal grains of the aluminum alloy ingot are refined, and the defect of a microstructure is eliminated, so that the structure of the aluminum alloy ingot is compact, the mechanical property is improved, bubbles, cracks and looseness formed in the process of simultaneous pouring can also be welded under the action of high temperature and pressure, the aluminum alloy ingot can generate large plastic deformation by carrying out cold rolling on the aluminum alloy ingot for multiple times, the yield point of the aluminum strip 1 is improved, the shaping of the aluminum strip 1 is increased, two strips are attached, and a reinforcing steel wire 4 is arranged in the middle of the strips, so that the compression resistance and the shearing resistance of the aluminum strip 1 can be improved, and the strength of the aluminum strip 1 is increased.
Further, in the first step, the temperature of the smelting furnace is 700-.
Further, in the second step, the thickness of scraping of surface scraper is 3mm, and six sections of aluminum alloy ingot casting are all scraped, can detach the impurity on aluminum alloy ingot casting surface, improve the quality of aluminium strip 1.
Furthermore, in the third step, the hot rolling temperature is 455-550 ℃, the cooling liquid with the temperature of 80-90 ℃ and the temperature of 95 percent of water added with 5 percent of oil is adopted in the hot rolling process, the cooling liquid with the temperature of 26-28 ℃ and the temperature of 95 percent of water added with 5 percent of oil is adopted in the cold rolling process, and the cooling liquid is used, so that the adhesion between the aluminum alloy plate and the roller can be prevented in the hot rolling and cold rolling processes, and the stability of the hot rolling and the cold rolling is improved.
Further, the temperature of the annealing furnace is 420-580 ℃, the aluminum alloy plate is heated and kept for 8-10h, then the temperature is reduced to 350 ℃ and kept for 2h, then the aluminum alloy plate is taken out of the furnace and cooled, the diameter of the steel bar wire 4 is 0.4mm, and the aluminum alloy plate is annealed, so that the cutting processability of the aluminum alloy plate can be improved, the plasticity and the toughness are increased, the chemical components are homogenized, the residual stress is eliminated, the size is stabilized, the deformation and crack tendency is reduced, the crystal grains are refined, the structure is adjusted, the structure defect is eliminated, and the structural stability of the aluminum strip 1 is facilitated.
Further, in the fifth step, the hot rolling temperature is 480-590 ℃, and the cooling liquid with the temperature of 80-90 ℃ and the temperature of 95 percent of water added with 5 percent of oil is adopted in the hot rolling process, so that the adhesion between the aluminum alloy plate and the roller can be prevented in the hot rolling process by using the cooling liquid, and the hot rolling stability is improved.
Further, in the sixth step, the temperature of the annealing furnace is 380-520 ℃, the temperature of the aluminum alloy plate is raised and kept for 6-8h, then the temperature is reduced to 300 ℃ and kept for 2h, then the aluminum alloy plate is taken out of the furnace and cooled, and the strip is annealed, so that the performance of the strip can be further improved, and the structural stability of the aluminum strip 1 is improved.
Further, in the seventh step, the bonding groove 2 is set to be linear, and the depth of the notch is 0.1mm, the width is 1mm, and the diameter of the through hole 3 is 3 mm.
The working principle is as follows: during preparation, according to the component ingredients of the aluminum belt, an aluminum ingot is firstly placed into a 700-doped 780 ℃ smelting furnace for smelting, then other component ingredients are sequentially placed into the smelting furnace for stirring and smelting for 5-7h, so that the aluminum alloy liquid is fully mixed and formed, the aluminum alloy liquid is led out, an aluminum alloy ingot with the thickness of 400mm is prepared by adopting a semi-continuous casting method, impurities on the surface of the aluminum alloy ingot are scraped by a surface scraper, the surface of the aluminum alloy ingot is smooth, the aluminum alloy ingot is hot-rolled for multiple times at the temperature of 455-doped 550 ℃ until the aluminum alloy ingot becomes an aluminum alloy plate with the thickness of 20mm, then the aluminum alloy plate is cold-rolled for multiple times until the thickness of the aluminum alloy plate is 2mm, the aluminum alloy plate is placed into an annealing furnace with the temperature of 420-doped 580 ℃ for annealing treatment, then the two aluminum alloy plates are jointed, and a reinforcing steel bar wire 4 is placed between the two aluminum alloy plates, the composite aluminum alloy plate is subjected to composite rolling through a composite rolling machine, the composite rolled plate is subjected to hot rolling at the temperature of 480-590 ℃, the thickness of the plate is 1mm, a strip is formed, the strip is placed into an annealing furnace at the temperature of 380-520 ℃ for annealing treatment, then the strip is cut through a splitting machine, an aluminum strip is obtained, then the aluminum strip is carved with bonding grooves 2 through a scoring machine, through holes 3 are processed on the aluminum strip through a perforating machine, and finally the aluminum strip is wound through a winding machine.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a compound effective two-sided rubber coating aluminium strip, includes aluminium strip (1), its characterized in that: bonding grooves (2) are symmetrically formed above and below the aluminum strip (1), four bonding grooves (2) are formed in the aluminum strip (1), through holes (3) are formed in the aluminum strip (1) along two sides of the bonding grooves (2), reinforcing steel bars (4) are installed in the aluminum strip (1), and the aluminum strip (1) is fixedly connected with the reinforcing steel bars (4);
the preparation components of the aluminum strip comprise the following components in parts by weight: copper: 0.04-0.25%, zinc: 0.1-0.3%, iron: 0.5-0.7%, silicon: 0.4-0.7%, manganese: 1-1.5 percent, and the balance of aluminum and other impurities.
2. A preparation method of the double-sided rubber-coated aluminum strip for the composite pipe is realized on the basis of the double-sided rubber-coated aluminum strip for the composite pipe in claim 1, and is characterized by comprising the following steps:
the method comprises the following steps: according to the ingredients of each component of the aluminum strip, firstly putting an aluminum ingot into a smelting furnace for melting, then sequentially putting other ingredients into the smelting furnace for stirring, and fully mixing the ingredients to form an aluminum alloy liquid;
step two: leading out the aluminum alloy liquid, preparing an aluminum alloy ingot with the thickness of 400mm by adopting a semi-continuous casting method, and scraping impurities on the surface of the aluminum alloy ingot by a surface scraper so as to enable the surface of the aluminum alloy ingot to be flat and smooth;
step three: hot rolling the aluminum alloy cast ingot for multiple times until the aluminum alloy cast ingot becomes an aluminum alloy plate with the thickness of 20mm, and then cold rolling the aluminum alloy plate for multiple times until the thickness of the aluminum alloy plate is 2 mm;
step four: putting the aluminum alloy plates into an annealing furnace for annealing treatment, then laminating the two aluminum alloy plates, and putting a reinforcing steel wire (4) between the two aluminum alloy plates;
step five: carrying out composite rolling on the composite aluminum alloy plate through a composite rolling machine, carrying out hot rolling on the composite rolled plate until the thickness of the plate is 1mm, and forming a strip;
step six: then, the strip is placed into an annealing furnace for annealing treatment, and then is cut by a splitting machine to obtain an aluminum strip;
step seven: and then, etching the bonding groove (2) on the aluminum strip by a nicking machine, processing a through hole (3) on the aluminum strip by a perforating machine, and finally rolling the aluminum strip by a rolling machine.
3. The method for preparing the double-sided rubber coated aluminum tape for the composite tube as claimed in claim 2, wherein in the step one, the temperature of the smelting furnace is 700-780 ℃, the smelting time is 5-7h, and the stirring speed is 1500-200 r/min.
4. The method for preparing the double-sided rubberized aluminum tape for the composite tube according to claim 2, wherein in the second step, a scraping thickness of the surface scraper is 3 mm.
5. The method for preparing the double-sided rubber coated aluminum strip for the composite tube as claimed in claim 2, wherein in the third step, the hot rolling temperature is 455-550 ℃, a cooling liquid with the temperature of 80-90 ℃ and the temperature of 95% water and 5% oil is adopted in the hot rolling process, and a cooling liquid with the temperature of 26-28 ℃ and the temperature of 95% water and 5% oil is adopted in the cold rolling process.
6. The method for preparing a double-sided rubber coated aluminum strip for a composite tube as claimed in claim 2, wherein in the fourth step, the annealing furnace temperature is 420-580 ℃, the aluminum alloy plate is heated and kept for 8-10h, then cooled to 350 ℃ and kept for 2h, and then taken out of the furnace for cooling, and the diameter of the reinforcing steel wire (4) is 0.4 mm.
7. The method for preparing the double-sided rubber coated aluminum strip for the composite tube as claimed in claim 2, wherein in the fifth step, the hot rolling temperature is 480-590 ℃, and a cooling liquid of 80-90 ℃ and 95% water and 5% oil is adopted in the hot rolling process.
8. The method for preparing the double-sided rubber coated aluminum strip for the composite tube as recited in claim 2, wherein in the sixth step, the temperature of the annealing furnace is 380-520 ℃, the aluminum alloy plate is heated and kept for 6-8h, then cooled to 300 ℃ and kept for 2h, and then taken out of the furnace for cooling.
9. The method for preparing the double-sided rubberized aluminum tape for the composite tube according to claim 2, wherein in the seventh step, the bonding groove (2) is arc-shaped, the depth of the notch is 0.1mm, the width of the notch is 1mm, and the diameter of the through hole (3) is 3 mm.
10. The method for preparing the double-sided rubberized aluminum tape for the composite tube according to claim 2, wherein in the seventh step, the bonding groove (2) is arranged in a straight line shape, the depth of the notch is 0.1mm, the width of the notch is 1mm, and the diameter of the through hole (3) is 3 mm.
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