CN111676396A - High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof - Google Patents
High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof Download PDFInfo
- Publication number
- CN111676396A CN111676396A CN202010679213.7A CN202010679213A CN111676396A CN 111676396 A CN111676396 A CN 111676396A CN 202010679213 A CN202010679213 A CN 202010679213A CN 111676396 A CN111676396 A CN 111676396A
- Authority
- CN
- China
- Prior art keywords
- rolling
- aluminum foil
- elongation
- strength
- corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 68
- 239000011888 foil Substances 0.000 title claims abstract description 55
- 230000007797 corrosion Effects 0.000 title claims abstract description 33
- 238000005260 corrosion Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 88
- 238000000137 annealing Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 238000009966 trimming Methods 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims description 14
- 230000003746 surface roughness Effects 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000037303 wrinkles Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 241000264877 Hippospongia communis Species 0.000 description 47
- 239000011162 core material Substances 0.000 description 31
- 239000000463 material Substances 0.000 description 15
- 239000000956 alloy Substances 0.000 description 13
- 229910045601 alloy Inorganic materials 0.000 description 10
- 230000007547 defect Effects 0.000 description 6
- 239000002994 raw material Substances 0.000 description 4
- 238000005034 decoration Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B21B1/40—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 foils which present special problems, e.g. because of thinness
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/466—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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- 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
-
- 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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- 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
-
- 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
- C22F1/053—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 of alloys with zinc as the next major constituent
-
- 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
- B21B2003/001—Aluminium or its alloys
Abstract
The invention belongs to the field of aluminum alloy foil rolling, and discloses a high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core and a manufacturing method thereof; the aluminum foil comprises the following components in percentage by mass: 0.40-0.60% of Fe0.15-0.30% of Si0.15-0.30% of Cu0.07-0.16%, 1.10-1.62% of Mn1.05%, less than 0.05% of Mg, 1.0-1.60% of Zn0.05% of Ti, and the balance of aluminum. The method comprises the steps of smelting, casting and rolling, cogging and rough rolling, high-temperature annealing, medium rolling, intermediate trimming, finish rolling, slitting, inspecting, packaging and the like. The finished aluminum foil prepared by the method has the characteristics of high mechanical property, strong impact resistance, high elongation and easy stretching and cutting; the core is not easy to wrinkle in the core making process, the gluing quality is good, and the dislocation error is small; meanwhile, the aluminum foil and the aluminum laminated plates on the two sides have obvious potential difference, so that the sacrificial protection effect can be formed, and the corrosion resistance life of the honeycomb plate is prolonged.
Description
Technical Field
The invention relates to a processing technology of an aluminum alloy material, in particular to a high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core and a manufacturing method thereof, belonging to the field of aluminum alloy foil rolling.
Background
The aluminum honeycomb core is formed by bonding a plurality of layers of aluminum foils, laminating, and stretching and unfolding the aluminum honeycomb core into a regular hexagonal honeycomb core. The aluminum honeycomb core has sharp and clear hole walls and no burrs, and is suitable for bonding high-quality core to surface materials and other purposes. The honeycomb plate core layer is of a hexagonal aluminum honeycomb structure, and the mutually-constrained dense honeycombs are like a plurality of small I-shaped beams, so that the pressure from the panel direction can be dispersedly borne, the plate is uniformly stressed, and the panel can still keep high flatness in a large area. The honeycomb core material is a low-density honeycomb material, is mainly used as a core material of a sandwich structure, can be compounded with an aluminum plate and the like at high temperature and high pressure to manufacture a metal composite honeycomb aluminum plate, has the advantages of large plate surface height, smoothness, light weight, simple and convenient installation, customization and the like, has multiple advantages of fire prevention, heat preservation, sound insulation, shock resistance, high weight, buffer resistance and the like, and is widely suitable for building curtain walls, wrapping columns, cornices, roofs, outdoor suspended ceilings and the like.
With the development of high-end decoration and super high-rise building requirements, the requirements on pressure bearing performance, wind resistance and corrosion resistance of the aluminum honeycomb plate are higher and higher, the conventional 3003 aluminum alloy honeycomb core is softer in performance and is easy to curl and wrinkle in the core making process, so that the phenomenon of coating leakage is generated, and the requirements of high-requirement use scenes cannot be met. Against this background, there is a need to develop new alternative aluminum alloy materials with higher alloying levels for use as honeycomb core materials that can withstand higher strength pressures and improve impact resistance during use. While meeting the market requirements for high performance, high elongation and high corrosion resistance of the honeycomb core material, a new production process needs to be developed to ensure that the production cost of the new alloy material is not obviously increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a high-strength, high-elongation and high-corrosion-resistance aluminum foil material for a honeycomb core, which solves the defects that the conventional 3003 aluminum alloy honeycomb core is soft in performance, easy to roll and wrinkle in the core making process and the like. The invention also aims to provide a manufacturing method of the high-strength, high-elongation and high-corrosion-resistance aluminum foil material for the honeycomb core.
A high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core is composed of the following components in percentage by mass: 0.40-0.60% of Fe0.15-0.30% of Si0.15-0.30% of Cu0.07-0.16%, 1.10-1.62% of Mn1.05%, less than 0.05% of Mg, 1.0-1.60% of Zn0.05% of Ti, and the balance of aluminum.
A manufacturing method of a high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core comprises the following steps:
smelting and cast-rolling the composition of claim 1 by a continuous cast-rolling method to prepare an aluminum foil blank; rough rolling the cast and rolled blank by a rough rolling mill for three times; feeding the rough-rolled coil stock into a furnace for high-temperature annealing; rolling the coil stock after high-temperature annealing for 2-4 times by using a medium rolling mill; trimming the product after the medium rolling on a slitting machine; and (4) rolling the trimmed product on a finishing mill for 5-7 times to reach the thickness of a finished product, and slitting by using a slitting machine.
Furthermore, the thickness specification of the casting blank in the casting and rolling step is 7.1 +/-0.3 mm, the temperature of a casting and rolling front box is 700-.
Further, the coil stock with the thickness of 2.0mm is obtained by rough rolling and then is subjected to high-temperature annealing in an annealing furnace, the annealing process adopts 1h furnace gas temperature to be increased to 260 ℃ and is subjected to heat preservation for 3h for oil removal treatment, the furnace gas temperature is changed to 545-565 ℃ and is subjected to heat preservation for 20-27 h, and then the furnace gas temperature is changed to 525-535 ℃ and is subjected to heat preservation for 2-5 h.
Further, rolling the coil stock after high-temperature annealing for 2-4 times to 0.5mm by using a medium rolling mill.
Furthermore, the aluminum foil is rolled to the thickness of 0.03-0.06 mm of finished aluminum foil in the finish rolling step, and the surface roughness is 0.03-0.09 mu m.
Further, before the finished product is cut, the transition guide roller and the surface compression roller are cleaned by alcohol, and a head sample and a tail sample are taken during cutting to be sent to a physical and chemical detection machine for mechanical property.
And further, checking the size, the surface and the end face of the product after the slitting is finished, and packaging after the checking is finished.
Further, the thicknesses of the rough rolling 3 passes are 7.1mm → 5.2mm → 4.0mm → 2.0mm, respectively.
Furthermore, the rolling passes of the medium rolling mill are 2.0mm → 1.0mm → 0.5mm respectively.
Advantageous effects
The cast-rolling honeycomb core obtained by the manufacturing method has the advantages of high strength, high elongation, corrosion resistance, aluminum foil tensile strength value of more than or equal to 270MPa, elongation of more than or equal to 3 percent, surface dyne value of more than or equal to 32dyn, surface roughness of 0.03-0.09 mu m, electrochemical potential of-800 +/-10 mV/SCE, high mechanical property, strong impact resistance, low surface residual oil quantity, easiness in gluing, flat plate type and difficulty in wrinkling; due to the process design of the intermediate annealing step at the position of 2.0mm of the intermediate pass, compared with the process of directly rolling the conventional 3003 alloy to the thickness of a finished product, the alloy is completely recrystallized at the intermediate position, and the obtained structure grains are more refined and uniform, which is a key factor that the high strength can be ensured and the high elongation advantage can be ensured; the honeycomb core made of the high-strength aluminum foil by the bonding and stretching process has the characteristics of strong impact resistance, good non-leakage bonding quality among honeycomb fins (the node strength is higher than 0.1MPa), and small wrinkling and dislocation errors (lower than 0.03%), and meanwhile, compared with the traditional 3003 alloy, the aluminum foil is added with Zn element in the component design, so that the electrochemical potential is reduced, and the aluminum foil has obvious potential difference (about 80mV) with the bonded aluminum plates at two sides, so that the sacrificial protection effect is formed, and the corrosion resistance life of the honeycomb plate is prolonged; has been successfully used in high-end decoration and high-rise buildings with high pressure bearing, high wind resistance and high corrosion resistance in batches.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.
Example 1
1. The high-strength, high-elongation and corrosion-resistant aluminum foil for the honeycomb core is a single-layer smooth foil, the thickness specification is 0.03-0.06 mm, and the aluminum foil comprises the following components in percentage by mass:
0.40-0.60% of Fe0.15-0.30% of Si0.15-0.30% of Cu0.07-0.16%, 1.10-1.62% of Mn1.05%, less than 0.05% of Mg, 1.0-1.60% of Zn0.05% of Ti, and the balance of aluminum.
1. The tensile strength of the finished aluminum foil is more than or equal to 270MPa, the elongation is more than or equal to 3 percent, the surface dyne value is more than or equal to 32dyn, and the electrochemical potential is-800 +/-10 mV/SCE.
A method for manufacturing a high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core comprises the following steps:
(1) smelting and casting-rolling: preparing materials according to the alloy components, smelting, casting and rolling into a blank with a certain thickness;
(2) cogging and rough rolling: rolling the cast and rolled blank to the thickness of 2.0mm by a roughing mill in three times;
(3) high-temperature annealing: feeding the coil stock obtained by rough rolling in the step (2) into a annealing furnace for high-temperature annealing, wherein the annealing process adopts 1h furnace gas temperature rise to 260 ℃ for heat preservation for 3h for oil removal treatment, the furnace gas temperature is changed to 545-565 ℃ for heat preservation for 20-27 h, and then the furnace gas temperature is changed to 525-535 ℃ for heat preservation for 3 h;
(4) intermediate rolling: rolling the coil stock after high-temperature annealing for 2-4 times to 0.5mm by using a medium rolling mill;
(5) middle trimming: feeding the 0.5mm material prepared in the step (4) into a slitting machine for trimming, and cutting the cracked edges completely;
(6) finish rolling: feeding the material subjected to edge cutting in the step (5) into a finishing mill, and rolling the material to the thickness of a finished product for 5-7 times, wherein the thickness of an outlet must be ensured to reach the target thickness before and after the pass rolling of the finished product, and the surface roughness of the finished product aluminum foil is 0.03-0.09 mu m;
(7) and (4) cutting a finished product: confirming that the finished product prepared in the step (6) is rolled on a splitting machine to be split according to the required specification of an order, wiping a transition guide roller and a surface pressure roller with alcohol before the finished product is split, strictly avoiding the defects of aluminum powder, scratch and the like, taking a head sample and a tail sample during splitting, sending physical and chemical detection mechanical properties, requiring 4 parallel samples, detecting tensile strength, elongation, surface oil quantity and the like;
(8) and (3) checking and packaging: and inspecting the size, the surface and the end face of the product after the slitting is finished, and packaging after the inspection is finished.
Preferably, the first and second liquid crystal materials are,
in the step (1), the thickness specification of the casting blank is 7.1 +/-0.3 mm, the temperature of a casting and rolling front box is 700 ℃ and 710 ℃, and the length of a casting and rolling area is 50-60 mm;
in the steps (2), (4) and (6), the distribution of rolling passes is 7.1mm → (3 passes) → 2.0mm → (2-4 passes) → 0.5mm → (5-7 passes) → 0.03-0.06 mm of the finished product.
The step (2), (4) and (6) correspond to the distribution of the rough, middle and finish rolling passes of 7.1 → 5.2 → 4.0 → 2.0 → 1.0 → 0.5 → 0.32 → 0.21 → 0.14 → 0.09 → (0.06 → 0.045 → 0.03) mm, which are typical setting values according to the actual thickness of the finished product;
trimming at the position with the thickness of 0.5mm in the middle pass in the step (5);
performing finish rolling in the step (6) until the thickness of a finished product aluminum foil is 0.03-0.06 mm, wherein the surface roughness is 0.03-0.09 mu m; the surface of the finished product pass is swept cleanly, and no residual oil stain is allowed;
in the step (7), the tensile strength of the finished aluminum foil product is required to be more than or equal to 270MPa, the elongation is required to be more than or equal to 3 percent, the surface dyne value is required to be more than or equal to 32dyn, and the electrochemical potential is-800 +/-10 mV/SCE;
in the step (8), the surface of the aluminum coil is required to be smooth, surface defects with hand feeling such as full-length or intermittent scratches, marks and the like are not allowed, bright strips, bright bands and color differences are not allowed, and the aluminum coil needs to be flat.
The cast-rolling honeycomb core obtained by the manufacturing method has the advantages of high strength, high elongation, corrosion resistance, aluminum foil tensile strength value of more than or equal to 270MPa, elongation of more than or equal to 3 percent, surface dyne value of more than or equal to 32dyn, surface roughness of 0.03-0.09 mu m, electrochemical potential of-800 +/-10 mV/SCE, high mechanical property, strong impact resistance, low surface residual oil quantity, easiness in gluing, flat plate type and difficulty in wrinkling; the honeycomb core made of the high-strength aluminum foil by the glue joint stretching process has the characteristics of strong impact resistance, good quality of non-leakage glue joint among honeycomb fins (the node strength is higher than 0.1MPa), and small wrinkling and dislocation errors (lower than 0.03%), and meanwhile, the aluminum foil and the glued aluminum plates on the two sides have obvious potential difference (about 80mV), so that the sacrificial protection effect can be formed, and the corrosion resistance life of the honeycomb plate can be prolonged; has been successfully used in high-end decoration and high-rise buildings with high pressure bearing, high wind resistance and high corrosion resistance in batches.
Example 2
A method for preparing a high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core comprises the following steps:
(1) smelting and casting-rolling: preparing alloy raw materials according to the weight percentage of Si 0.21%, Fe0.4%, Cu0.08%, Mn1.21%, Zn1.15% and the balance of Al as basic components, carrying out blank smelting and cast-rolling on the alloy raw materials to obtain a cast-rolled coil with the thickness of 7.1 x 1285mm, wherein the temperature of a cast-rolling front box is 702 ℃, and the length of a cast-rolling area is 57 mm; alloy "DS 309";
(2) cogging and rough rolling: rolling the cast and rolled blank to the thickness of 2.0mm in 3 passes through a roughing mill, wherein the rolling pass is 7.1 → 5.2 → 4.0 → 2.0 mm;
(3) high-temperature annealing: feeding the coil stock obtained by rough rolling in the step (2) into a annealing furnace for high-temperature annealing, wherein the annealing process adopts 1h furnace gas temperature rise to 260 ℃ for heat preservation for 3h for oil removal treatment, the furnace gas temperature is changed to 555 ℃ for heat preservation for 23h, and then the furnace gas temperature is changed to 530 ℃ for heat preservation for 3 h;
(4) intermediate rolling: after high-temperature annealing, rolling the coil stock by a medium rolling mill for 2 passes to 0.5mm, wherein the rolling pass is 2.0 → 1.0 → 0.5 mm;
(5) middle trimming: trimming the material prepared in the step (4) by the 0.5mm material loading slitting machine, and cutting the cracked edges to 1150 DEG±2mm；
(6) Finish rolling: after trimming in the step (5), the material is fed into a finishing mill and is rolled to the thickness of a finished product through 6 passes, wherein the rolling pass is 0.5 → 0.32 → 0.21 → 0.14 → 0.09 → 0.06 → 0.045mm, the outlet thickness is ensured to reach the target thickness before and after the rolling of the finished product pass, the surface of the finished product pass is cleaned by blowing, no residual oil stain is allowed to exist, and the surface roughness of the finished aluminum foil is controlled to be 0.03-0.09 mu m;
(7) and (4) cutting a finished product: cleaning a transition guide roller and a surface pressure roller by using alcohol before cutting a finished product, strictly preventing the defects of aluminum powder, scratches and the like, and cutting by using a cutting machine to obtain a finished product roll with the specification of 0.045 x 535 mm;
(8) and (3) checking and packaging: and inspecting the size, the surface and the end face of the product after the slitting is finished, and packaging after the inspection is finished.
The high-strength, high-elongation and corrosion-resistant aluminum foil for the honeycomb core prepared by the method is detected, the mean value of the tensile strength is 296MPa, the mean value of the elongation is 3.27%, the surface dyne value is tested to be 32dyn, the surface roughness is 0.07 mu m, the plate type is flat, the mean value of the electrochemical potential is-803 mV/SCE, the finished honeycomb aluminum foil has the performance characteristics of high strength and high elongation, the potential difference between the finished honeycomb aluminum foil and the honeycomb plate is close to 80mV, and the corrosion service life of the honeycomb plate can be prolonged; the honeycomb core manufactured by the bonding and stretching process has good bonding quality among the honeycomb fins, the node strength is 0.23MPa, no wrinkle exists, the dislocation error is lower than 0.03 percent, and the use requirements of customers are met.
Example 3
A method for preparing a high-strength, high-elongation and corrosion-resistant aluminum foil for a honeycomb core comprises the following steps:
(1) smelting and casting-rolling: preparing alloy raw materials according to the weight percentage of Si 0.25%, Fe0.50%, Cu0.12%, Mn1.56%, Zn1.59% and the balance of Al as basic components, carrying out blank smelting and cast-rolling on the alloy raw materials to obtain 6.9 x 1285mm cast-rolled coils, wherein the temperature of a cast-rolling front box is 706 ℃, and the length of a cast-rolling area is 55 mm; alloy "DS 309";
(2) cogging and rough rolling: rolling the cast-rolled blank to the thickness of 2.0mm by a roughing mill in three times, wherein the rolling pass is 6.9 → 5.2 → 4.0 → 2.0 mm;
(3) high-temperature annealing: feeding the coil stock obtained by rough rolling in the step (2) into a annealing furnace for high-temperature annealing, wherein the annealing process adopts 1h furnace gas temperature rise to 260 ℃ for heat preservation for 3h for oil removal treatment, the furnace gas temperature is changed to 550 ℃ for heat preservation for 25h, and then the furnace gas temperature is changed to 533 ℃ for heat preservation for 4 h;
(4) intermediate rolling: after high-temperature annealing, rolling the coil stock by a medium rolling mill for 2 passes to 0.5mm, wherein the rolling pass is 2.0 → 1.0 → 0.5 mm;
(5) middle trimming: trimming the material prepared in the step (4) by the 0.5mm material loading slitting machine, and cutting the cracked edges to 1150 DEG±2mm；
(6) Finish rolling: after trimming in the step (5), the material is fed into a finishing mill and is rolled to the thickness of a finished product through 6 passes, wherein the rolling pass is 0.5 → 0.32 → 0.21 → 0.14 → 0.09 → 0.06 → 0.045mm, the outlet thickness is ensured to reach the target thickness before and after the rolling of the finished product pass, the surface of the finished product pass is cleaned by blowing, no residual oil stain is allowed to exist, and the surface roughness of the finished aluminum foil is controlled to be 0.03-0.09 mu m;
(7) and (4) cutting a finished product: cleaning a transition guide roller and a surface pressure roller by using alcohol before cutting a finished product, strictly preventing the defects of aluminum powder, scratches and the like, and cutting by using a cutting machine to obtain a finished product roll with the specification of 0.045 x 535 mm;
(8) and (3) checking and packaging: and inspecting the size, the surface and the end face of the product after the slitting is finished, and packaging after the inspection is finished.
The high-strength, high-elongation and corrosion-resistant aluminum foil for the honeycomb core prepared by the method is detected, the mean tensile strength is 298MPa, the mean elongation is 3.32%, the surface dyne value is tested at 33dyn, the surface roughness is 0.06 mu m, the plate type is flat, the mean electrochemical potential is-792 mV/SCE, the finished honeycomb aluminum foil has the performance characteristics of high strength and high elongation, the potential difference between the finished honeycomb aluminum foil and the honeycomb plate is close to 70mV, and the corrosion service life of the honeycomb plate can be prolonged; the honeycomb core manufactured by the bonding and stretching process has good bonding quality among the honeycomb fins, the node strength is 0.21MPa, no wrinkling is found, and the dislocation error is less than 0.025 percent, thereby meeting the use requirements of customers.
The above description is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that appropriate modifications and optimization can be made based on the technical principle of the present invention, and these modifications and optimization should also be regarded as the protection scope of the present invention.
Claims (10)
1. The high-strength, high-elongation and corrosion-resistant aluminum foil for the honeycomb core is characterized by comprising the following components in percentage by mass: 0.40-0.60% of Fe0.15-0.30% of Si0.15-0.30% of Cu0.07-0.16%, 1.10-1.62% of Mn1.05%, less than 0.05% of Mg, 1.0-1.60% of Zn0.05% of Ti, and the balance of aluminum.
2. The method of manufacturing a high strength, high elongation, corrosion resistant aluminum foil for honeycomb core of claim 1 comprising the steps of:
smelting and cast-rolling the composition of claim 1 by a continuous cast-rolling method to prepare an aluminum foil blank; rough rolling the cast and rolled blank by a rough rolling mill for three times; feeding the rough-rolled coil stock into a furnace for high-temperature annealing; rolling the coil stock after high-temperature annealing for 2-4 times by using a medium rolling mill; trimming the product after the medium rolling on a slitting machine; and (4) rolling the trimmed product on a finishing mill for 5-7 times to reach the thickness of a finished product, and slitting by using a slitting machine.
3. The method for manufacturing a high-strength, high-elongation, corrosion-resistant aluminum foil for honeycomb cores as claimed in claim 2, wherein the thickness specification of the cast slab in the casting step is 7.1 ± 0.3mm, the temperature of the casting and rolling front box is 700 ℃ and 710 ℃, and the length of the casting and rolling area is 50-60 mm.
4. The manufacturing method of the high-strength, high-elongation and corrosion-resistant aluminum foil for the honeycomb core according to claim 2 is characterized in that a coil stock with the thickness of 2.0mm is obtained by rough rolling, then the coil stock is subjected to high-temperature annealing in an annealing furnace, the annealing process is performed by heating the furnace gas temperature to 260 ℃ for 3 hours for oil removal treatment, the furnace gas temperature is changed to 545-565 ℃ for 20-27 hours for heat preservation, and then the furnace gas temperature is changed to 525-535 ℃ for 2-5 hours.
5. The method for manufacturing a high-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb cores according to claim 2, wherein the coil stock after high-temperature annealing is rolled by a medium rolling mill for 2-4 times to 0.5 mm.
6. The method for manufacturing a high-strength, high-elongation, corrosion-resistant aluminum foil for honeycomb cores according to claim 2, wherein the aluminum foil is rolled to a finished aluminum foil thickness of 0.03 to 0.06mm in the finish rolling step, and the surface roughness is 0.03 to 0.09 μm.
7. The method for manufacturing a high-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb cores according to claim 2, wherein the transition guide roller and the surface compression roller are wiped clean with alcohol before cutting, and the head sample and the tail sample are taken during cutting to carry out physical and chemical detection on mechanical properties.
8. The method of manufacturing a high strength, high elongation, corrosion resistant aluminum foil for honeycomb core according to claim 2 wherein the dimension, surface and end face inspection of the product is performed after slitting, and the product is packaged after inspection.
9. The method of manufacturing a high-strength, high-elongation, corrosion-resistant aluminum foil for honeycomb cores according to claim 2, wherein the thicknesses of the 3 passes of rough rolling are 7.1mm → 5.2mm → 4.0mm → 2.0mm, respectively.
10. The method of manufacturing a high-strength, high-elongation, corrosion-resistant aluminum foil for honeycomb cores according to claim 2, wherein the intermediate rolling mill performs 2 passes of rolling, each of which is 2.0mm → 1.0mm → 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010679213.7A CN111676396A (en) | 2020-07-15 | 2020-07-15 | High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010679213.7A CN111676396A (en) | 2020-07-15 | 2020-07-15 | High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111676396A true CN111676396A (en) | 2020-09-18 |
Family
ID=72457650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010679213.7A Pending CN111676396A (en) | 2020-07-15 | 2020-07-15 | High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111676396A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605147A (en) * | 2020-11-27 | 2021-04-06 | 江苏鼎胜新能源材料股份有限公司 | Fin aluminum foil for high-corrosion-resistance and low-potential heat exchanger and manufacturing method thereof |
| CN113073236A (en) * | 2021-03-17 | 2021-07-06 | 内蒙古联晟新能源材料有限公司 | Preparation method of wide-width double-zero-foil blank manufactured by continuous casting and rolling method |
| CN113798322A (en) * | 2021-08-05 | 2021-12-17 | 福建巨电新能源股份有限公司 | Preparation method of composite foil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010024079A1 (en) * | 2008-08-28 | 2010-03-04 | 株式会社神戸製鋼所 | High-strength aluminum alloy plate for lithographic plate and manufacturing method therefor |
| CN104561671A (en) * | 2014-12-29 | 2015-04-29 | 镇江鼎胜铝业股份有限公司 | Method for preparing high-elongation medical aluminum foil from cast rolled stock |
| CN111270108A (en) * | 2020-03-27 | 2020-06-12 | 江苏鼎胜新能源材料股份有限公司 | Novel alloy high-strength PCB aluminum substrate aluminum material and preparation method thereof |
| CN111349824A (en) * | 2020-04-03 | 2020-06-30 | 江苏鼎胜新能源材料股份有限公司 | Ultrathin single-sided smooth aluminum foil for lithium battery tab and preparation method thereof |
| CN111394626A (en) * | 2020-04-20 | 2020-07-10 | 江苏鼎胜新能源材料股份有限公司 | 3005Mod aluminum alloy long-life flat pipe material and manufacturing method thereof |
-
2020
- 2020-07-15 CN CN202010679213.7A patent/CN111676396A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010024079A1 (en) * | 2008-08-28 | 2010-03-04 | 株式会社神戸製鋼所 | High-strength aluminum alloy plate for lithographic plate and manufacturing method therefor |
| CN104561671A (en) * | 2014-12-29 | 2015-04-29 | 镇江鼎胜铝业股份有限公司 | Method for preparing high-elongation medical aluminum foil from cast rolled stock |
| CN111270108A (en) * | 2020-03-27 | 2020-06-12 | 江苏鼎胜新能源材料股份有限公司 | Novel alloy high-strength PCB aluminum substrate aluminum material and preparation method thereof |
| CN111349824A (en) * | 2020-04-03 | 2020-06-30 | 江苏鼎胜新能源材料股份有限公司 | Ultrathin single-sided smooth aluminum foil for lithium battery tab and preparation method thereof |
| CN111394626A (en) * | 2020-04-20 | 2020-07-10 | 江苏鼎胜新能源材料股份有限公司 | 3005Mod aluminum alloy long-life flat pipe material and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605147A (en) * | 2020-11-27 | 2021-04-06 | 江苏鼎胜新能源材料股份有限公司 | Fin aluminum foil for high-corrosion-resistance and low-potential heat exchanger and manufacturing method thereof |
| CN113073236A (en) * | 2021-03-17 | 2021-07-06 | 内蒙古联晟新能源材料有限公司 | Preparation method of wide-width double-zero-foil blank manufactured by continuous casting and rolling method |
| CN113798322A (en) * | 2021-08-05 | 2021-12-17 | 福建巨电新能源股份有限公司 | Preparation method of composite foil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111676396A (en) | High-strength, high-elongation and corrosion-resistant aluminum foil for honeycomb core and manufacturing method thereof | |
| CN109433822B (en) | Rolling compounding method of aluminum-magnesium interlayer composite plate | |
| CN110722013B (en) | Method for rolling magnesium-aluminum laminated plate by drum-shaped corrugated roller | |
| US20100316887A1 (en) | Sheet product having an outer surface optimized for anodization | |
| CN103752612B (en) | A kind of production method of five layers of aluminium alloy compound plate and strip blank | |
| WO2021208333A1 (en) | Manufacturing method for double-layer metal composite steel plate | |
| CN111534725A (en) | Aluminum material for producing aluminum-plastic composite board by short-process casting and rolling blank and preparation method thereof | |
| CN102021296A (en) | Method for rolling and forming low-oxygen-content pure-titanium precise thin strip coiled material | |
| CN110756581A (en) | Hot rolling process of high-strength aluminum alloy for anodic oxidation | |
| JP3742340B2 (en) | Method for producing aluminum composite material | |
| CN111037230A (en) | Multilayer aluminum alloy composite board for honeycomb floor and preparation method thereof | |
| CN115627332A (en) | Grain-oriented electromagnetic steel sheet and method for producing same | |
| CN111331964B (en) | Composite aluminum material for high-speed rail sound-insulation honeycomb panel produced by cold rolling composite method and manufacturing method thereof | |
| CN104525563A (en) | Alclad casting ingot rolling method | |
| CN109825746B (en) | Anodic alumina base material for aluminum veneer curtain wall and preparation method thereof | |
| CN102921729A (en) | Method of improving surface quality of light gauge aluminum foil preform body | |
| Kerth et al. | Aluminium foil production | |
| CN108715959B (en) | Double-layer composite aluminum alloy plate for vehicle body | |
| KR101489745B1 (en) | Three-layer aluminum alloy clad sheet and the method for manufacturing thereof | |
| US2017757A (en) | Duplex metal article | |
| CN110802112B (en) | Aluminum alloy plate dragon rolling process | |
| KR102534890B1 (en) | Fabrication method of aluminum alloy clad sheets and aluminum alloy clad sheets fabricated by the method | |
| CN110496858B (en) | Continuous welding-free sheath hot rolling compounding method | |
| CN112848556A (en) | Steel-aluminum composite plate material combining high strength of steel and light metal characteristics of aluminum | |
| CN107234133A (en) | A kind of method for solving to produce bubble in aluminum matrix composite rolling adhesion process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200918 |
|
| RJ01 | Rejection of invention patent application after publication |