CN108611531A - High intensity, high ductibility Aluminum Plate and Strip processing technology - Google Patents
High intensity, high ductibility Aluminum Plate and Strip processing technology Download PDFInfo
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- CN108611531A CN108611531A CN201810412140.8A CN201810412140A CN108611531A CN 108611531 A CN108611531 A CN 108611531A CN 201810412140 A CN201810412140 A CN 201810412140A CN 108611531 A CN108611531 A CN 108611531A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
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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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
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- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides high intensity, high ductibility Aluminum Plate and Strip processing technology, is related to Alloy Processing field.It is related to high intensity, high ductibility Aluminum Plate and Strip processing technology, includes the following steps：Step A：It is raw material to choose 3003 alloy cast-rolling stocks；Step B：Above-mentioned cast-rolling stock is rolled using cold-rolling mill, by reducing reduction in pass in the operation of rolling, increases processing passage number to obtain thickness as the cold rolling coil of 0.4mm~0.6mm；Step C：Process annealing processing is carried out to the finished product cold rolling coil after above-mentioned steps B rollings.Technical solution using the present invention can strengthen the cold work hardening degree of cold rolling, in the case where ensureing that the tensile strength of product is basically unchanged, increase the elongation after fracture of product, improve the plasticity of product.
Description
Technical field
The present invention relates to Alloy Processing fields, and work is processed more particularly, to high intensity, high ductibility Aluminum Plate and Strip
Skill.
Background technology
Aluminium is the metallic element that content is most abundant in the earth's crust, and content accounts for about the 8.8% of earth's crust gross mass.Nature
Aluminium is all that compound form exists, and 70% or so of the aluminium in the earth's crust is to be present in nature in the form of AL2O3.AL2O3 is passed through
Metallic aluminium can be produced after electrolysis.
The density of aluminium is small, about the 1/3 of iron, has very high plasticity, easy to process, can be made into various proximate matters and plate
Material, corrosion resistance are good.The intensity of simple aluminium is low, only by add certain alloying element and unique processing technology and
The methods of heat treatment is strengthened.
Aluminium and aluminium alloy are most widely used one kind non-ferrous metal structural materials in industry, Aeronautics and Astronautics, automobile,
It has been widely applied in machine-building, ship and chemical engineering industry, daily necessities.Product is widely used in packing business, traffic fortune
Defeated industry, construction industry.
3003 aluminium alloys, which can be used for processing, needs the good Components of good forming property, high corrosion stability solderability
Part, or not only required these performances but also needed the work higher than 1XXX systems alloy strength, such as kitchen tools, food and chemical products
Processing and storage facility, transport slot, the tank of fluid product, with the various pressure vessel and pipings of thin plate processing, proximate matter.
But with the further promotion required properties of product, 3003 alloy plate strip conventional machining modes can not expire
Sufficient social demand, although 5xxx systems or 7xxx systems alloy strength higher, also bring simultaneously processing difficulties, processing cost at
The problems such as increasing again.
In consideration of it, in order to improve high intensity, high ductibility Aluminum Plate and Strip processing technology and exclusive heat treatment mode, urgently
3003 alloy plate strips of a kind of high intensity of need, high ductibility.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention,
And it is not construed as recognizing or implying in any form that the information constitutes existing skill known to those skilled in the art
Art.
Invention content
The first object of the present invention is to provide a kind of high intensity, high ductibility Aluminum Plate and Strip processing technology, can pass through
Reduce reduction in pass, increases processing passage number, to strengthen the cold work hardening degree of cold rolling；By after final pass
Increase low temperature annealing process, in the case where ensureing that the tensile strength of product is basically unchanged, increase the elongation after fracture of product,
Improve the plasticity of product.
A kind of high intensity provided by the invention, high ductibility Aluminum Plate and Strip processing technology, include the following steps：
Step A：It is raw material to choose 3003 alloy cast-rolling stocks；
Step B：Above-mentioned cast-rolling stock is rolled using cold-rolling mill, by reducing reduction in pass in the operation of rolling, is increased
Passage number is processed to obtain thickness as the cold rolling coil of 0.4mm~0.6mm；
Step C：Process annealing processing is carried out to the finished product cold rolling coil after above-mentioned steps B rollings.
In any of the above-described technical solution, further, in above-mentioned steps A, select 380/960/1650 models of φ cold
Milling train.
In any of the above-described technical solution, further, in above-mentioned steps A, 3003 alloy cast-rolling stocks include as follows
Alloying component：Fe (0.55~0.65) %, Si (≤0.15) %, Cu (0.08~0.12) %, Mn (1.05~1.15) %, Ti
(0.015~0.03) %, Zn (≤0.1) %, Mg (≤0.03) %, remaining is Al.
In any of the above-described technical solution, further, in above-mentioned steps B, low temperature is carried out to cold rolling coil and is moved back for a long time
Fire processing.
In any of the above-described technical solution, further, in above-mentioned steps B, cast-rolling stock is according to following thickness-tapered
Processing, successively pass through 6.8mm, 4.7mm, 3.1mm, 2.1mm after carry out rewinding trimming, continue later 1.45mm,
The sequence of 1.0mm, 0.74mm, 0.53mm, 0.4mm, to obtain the finished product cold rolling coil that thickness is 0.4mm.
In any of the above-described technical solution, further, in above-mentioned steps B, cast-rolling stock is according to following thickness-tapered
Processing, successively pass through 6.8mm, 4.7mm, 3.1mm, 2.1mm after carry out rewinding trimming, continue later 1.45mm,
The sequence of 1.0mm, 0.78mm, 0.60mm, to obtain the finished product cold rolling coil that thickness is 0.6mm.
In any of the above-described technical solution, further, in above-mentioned steps B, rollcogging-roll is provided in cold-rolling mill, institute
The roughness range for stating rollcogging-roll is Ra0.8~1.0 μm.
In any of the above-described technical solution, further, in above-mentioned steps B, carry out placing rolling in cold-rolled process
Oil additive, rolling oil additives content are 7~8%.
In any of the above-described technical solution, further, in above-mentioned steps B, working roll, work are provided in cold-rolling mill
Make convexity ranging from 0.02mm~0.03mm of roller.
In any of the above-described technical solution, further, in above-mentioned steps C, the annealing temperature of process annealing processing is
200 DEG C, the duration be 20~for 24 hours.
Beneficial effects of the present invention are as follows：
High intensity using the present invention, high ductibility Aluminum Plate and Strip processing technology, include the following steps：Step A：It chooses
3003 alloy cast-rolling stocks are raw material；Step B：Above-mentioned cast-rolling stock is rolled using cold-rolling mill, passes through reduction in the operation of rolling
Reduction in pass increases processing passage number to obtain thickness as the cold rolling coil of 0.4mm~0.6mm；Step C：To above-mentioned steps
Finished product cold rolling coil after B rollings carries out process annealing processing.High intensity using the present invention, the processing of high ductibility Aluminum Plate and Strip
Technique, for 5xxx systems and 7xxx alloys, difficulty of processing and processing cost are low, and 3003 alloy castings can be used
Blank can further reduce the cost, and entire production procedure is short, and processing cost is low；3003 alloy blanks being processed into, tension are strong
Degree >=270MPa；Elongation percentage >=3%；90 ° of bending flawlesses, it is functional.
Specific implementation mode
Technical scheme of the present invention will be clearly and completely described below, it is clear that described embodiment is this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects.For the ordinary skill in the art, it can understand that above-mentioned term in the present invention specific contains with concrete condition
Justice.
Embodiment one
The specific implementation mode of the present embodiment is as follows：
High intensity provided in this embodiment, high ductibility Aluminum Plate and Strip processing technology, it is original to select 3003 cast-rolling stocks
Material, carries out cold rolling processing to it, to obtain more excellent performance of Aluminum Plate and Strip, specifically comprises the following steps：
Step A：It is raw material to choose 3003 alloy cast-rolling stocks.
It should be noted that the 3003 alloy cast-rolling stock of raw material in the present embodiment includes following alloying component：Fe
(0.55~0.65) %, Si (≤0.15) %, Cu (0.08~0.12) %, Mn (1.05~1.15) %, Ti (0.015~
0.03) %, Zn (≤0.1) %, Mg (≤0.03) %, remaining is Al, as shown in table 1.
1.3003 alloy cast-rolling stock component list of table
It should be pointed out that 3003 aluminium alloys can be used for processing, to need good forming property, high corrosion stability solderable
Property good parts member, 3003 be AL-Mn systems alloy, is a kind of most widely used rustproof aluminum alloy, and the intensity of this alloy is not high
(a little higher than commercial-purity aluminium) is unable to heat treatment reinforcement, therefore improves its mechanical property using Cold-forming process：In annealing shape
State has very high plasticity, and in half flow harden, plasticity is fair, and plasticity is low when flow harden, and corrosion-resistant good, weldability is good,
Machinability is bad.
Step B：The cast-rolling stock in above-mentioned steps A is rolled using cold-rolling mill, by reducing passage pressure in the operation of rolling
Lower amount increases processing passage number to obtain thickness as the cold rolling coil of 0.4mm~0.6mm.
It should be noted that it refers to the volume under pressure for gradually increasing cold-rolling mill to reduce reduction in pass in step B, to make
Thickness is gradually reduced in cast-rolling stock to be processed, to avoid disposable processing capacity excessive, to reduce rejection rate；Specifically, root
According to different processing thickness requirements, the setting of different reductions in pass is carried out, and is necessary to ensure that the distribution of multiple drafts, from
And ensure machining accuracy.
Step C：Process annealing processing is carried out to the finished product cold rolling coil after above-mentioned steps B rollings.
It should be noted that carrying out process annealing processing to Aluminum Plate and Strip, structural transformation can not occur, eliminate planted agent
Power reduces hardness, additionally it is possible to and be conducive to the cleaning of surface defect, but the heating and thermal insulation time of process annealing, can slightly grow, but
Without long, the type of cooling can be furnace cooling, can also be air-cooled.
The optional technical solution of the present embodiment is, in above-mentioned steps B, cold-rolling mill selects 380/960/1650 models of φ
Cold-rolling mill.
It should be pointed out that in the cold-rolling mill of existing standard model, the cold-rolling mill of above-mentioned model is preferentially selected, so as to
In being smoothed out for cold rolling processing.
The optional technical solution of the present embodiment is, in above-mentioned steps B, cast-rolling stock is processed according to following thickness-tapered,
Pass through 6.8mm, 4.7mm, 3.1mm, 2.1mm successively, carry out rewinding trimmings after the pressure of four passages, rewinding trimming it is subsequent
It is continuous to carry out five passages pressures of 1.45mm, 1.0mm, 0.74mm, 0.53mm, 0.4mm, to obtain thickness be 0.4mm at
Product cold rolling coil, using multi-pass, the realization method of reduction reduction in pass, it is ensured that the processing efficiency and yield rate of cold rolling processing.
The optional technical solution of the present embodiment is, in above-mentioned steps B, rollcogging-roll is provided in cold-rolling mill, rollcogging-roll
Roughness range is Ra0.8~1.0 μm.
The optional technical solution of the present embodiment is, in above-mentioned steps B, ROLLING OIL will be placed in cold-rolled process by, which carrying out, adds
Add agent, the content of rolling oil additives is 7~8%.
The optional technical solution of the present embodiment is, in above-mentioned steps B, working roll is provided in cold-rolling mill, working roll is convex
Spend ranging from 0.02mm~0.03mm.
The optional technical solution of the present embodiment is, in above-mentioned steps C, the annealing temperature of process annealing processing is 200
DEG C, the duration be 20~for 24 hours.
Using the high intensity of the present embodiment, high ductibility Aluminum Plate and Strip processing technology, include the following steps：Step A：Choosing
It is raw material to take 3003 alloy cast-rolling stocks；Step B：Above-mentioned cast-rolling stock is rolled using cold-rolling mill, by subtracting in the operation of rolling
Small reduction in pass increases processing passage number to obtain thickness as the cold rolling coil of 0.4mm~0.6mm；Step C：To above-mentioned step
Finished product cold rolling coil after rapid B rollings carries out process annealing processing.High intensity using the present invention, high ductibility Aluminum Plate and Strip add
Work technique, for 5xxx systems and 7xxx alloys, difficulty of processing and processing cost are low, and the casting of 3003 alloys can be used
Rolling stock can further reduce the cost, and entire production procedure is short, and processing cost is low；3003 alloy blanks being processed into, tension
Intensity >=270MPa；Elongation percentage >=3%；90 ° of bending flawlesses, it is functional.
Embodiment two
High intensity provided in this embodiment, high ductibility Aluminum Plate and Strip processing technology, it is original to select 3003 cast-rolling stocks
Material, carries out cold rolling processing to it, to obtain more excellent performance of Aluminum Plate and Strip, specifically comprises the following steps：
Step A：It is raw material to choose 3003 alloy cast-rolling stocks.
It should be noted that the 3003 alloy cast-rolling stock of raw material in the present embodiment includes following alloying component：Fe
(0.55~0.65) %, Si (≤0.15) %, Cu (0.08~0.12) %, Mn (1.05~1.15) %, Ti (0.015~
0.03) %, Zn (≤0.1) %, Mg (≤0.03) %, remaining is Al, as shown in Table 1 above.
It should be pointed out that 3003 aluminium alloys can be used for processing, to need good forming property, high corrosion stability solderable
Property good parts member, 3003 be AL-Mn systems alloy, is a kind of most widely used rustproof aluminum alloy, and the intensity of this alloy is not high
(a little higher than commercial-purity aluminium) is unable to heat treatment reinforcement, therefore improves its mechanical property using Cold-forming process：In annealing shape
State has very high plasticity, and in half flow harden, plasticity is fair, and plasticity is low when flow harden, and corrosion-resistant good, weldability is good,
Machinability is bad.
Step B：The cast-rolling stock in above-mentioned steps A is rolled using cold-rolling mill, by reducing passage pressure in the operation of rolling
Lower amount increases processing passage number to obtain thickness as the cold rolling coil of 0.4mm~0.6mm.
It should be noted that it refers to the volume under pressure for gradually increasing cold-rolling mill to reduce reduction in pass in step B, to make
Thickness is gradually reduced in cast-rolling stock to be processed, to avoid disposable processing capacity excessive, to reduce rejection rate；Specifically, root
According to different processing thickness requirements, the setting of different reductions in pass is carried out, and is necessary to ensure that the distribution of multiple drafts, from
And ensure machining accuracy.
Step C：Process annealing processing is carried out to the finished product cold rolling coil after above-mentioned steps B rollings.
It should be noted that carrying out process annealing processing to Aluminum Plate and Strip, structural transformation can not occur, eliminate planted agent
Power reduces hardness, additionally it is possible to and be conducive to the cleaning of surface defect, but the heating and thermal insulation time of process annealing, can slightly grow, but
Without long, the type of cooling can be furnace cooling, can also be air-cooled.
The optional technical solution of the present embodiment is, in above-mentioned steps B, cold-rolling mill selects 380/960/1650 models of φ
Cold-rolling mill.
It should be pointed out that in the cold-rolling mill of existing standard model, the cold-rolling mill of above-mentioned model is preferentially selected, so as to
In being smoothed out for cold rolling processing.
The optional technical solution of the present embodiment is, in above-mentioned steps B, cast-rolling stock is processed according to following thickness-tapered,
Pass through 6.8mm, 4.7mm, 3.1mm, 2.1mm successively, carry out rewinding trimmings after the pressure of four passages, rewinding trimming it is subsequent
It is continuous to carry out tetra- passage pressures of 1.45mm, 1.0mm, 0.78mm, 0.60mm, to obtain the finished product cold rolling that thickness is 0.6mm
Volume, using multi-pass, the realization method of reduction reduction in pass, it is ensured that the processing efficiency and yield rate of cold rolling processing.
The optional technical solution of the present embodiment is, in above-mentioned steps B, rollcogging-roll is provided in cold-rolling mill, rollcogging-roll
Roughness range is Ra0.8~1.0 μm.
The optional technical solution of the present embodiment is, in above-mentioned steps B, rolling oil additives are placed in the operation of rolling,
The content of rolling oil additives is 7~8%.
The optional technical solution of the present embodiment is, in above-mentioned steps B, working roll is provided in cold-rolling mill, working roll
Convexity ranging from 0.02mm~0.03mm.
The optional technical solution of the present embodiment is, in above-mentioned steps C, the annealing temperature of process annealing processing is 200
DEG C, the duration be 20~for 24 hours.
Using the high intensity of the present embodiment, high ductibility Aluminum Plate and Strip processing technology, above-described embodiment one can be obtained
Whole technique effects, therefore not to repeat here.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；
Although present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：Its
It still can be either special to which part or whole technologies with technical scheme described in the above embodiments is modified
Sign carries out equivalent replacement；And these modifications or replacements, the present invention that it does not separate the essence of the corresponding technical solution is each to be implemented
The range of example technical solution.
Claims (10)
1. a kind of high intensity, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that include the following steps：
Step A：It is raw material to choose 3003 alloy cast-rolling stocks；
Step B：Above-mentioned cast-rolling stock is rolled using cold-rolling mill, by reducing reduction in pass in the operation of rolling, increases processing
Passage number is to obtain thickness as the cold rolling coil of 0.4mm~0.6mm；
Step C：Process annealing processing is carried out to the finished product cold rolling coil after above-mentioned steps B rollings.
2. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid B, cold-rolling mill selects 380/960/1650 model cold-rolling mills of φ.
3. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid A, 3003 alloy cast-rolling stocks include following alloying component：Fe (0.55~0.65) %, Si (≤0.15) %, Cu (0.08
~0.12) %, Mn (1.05~1.15) %, Ti (0.015~0.03) %, Zn (≤0.1) %, Mg (≤0.03) %, remaining is
Al。
4. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid B, low temperature long term annealing processing is carried out to cold rolling coil.
5. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid B, cast-rolling stock is processed according to following thickness-tapered, is passed through 6.8mm, 4.7mm, 3.1mm, 2.1mm successively and is carried out weight later
Cut roll side continues the sequence of 1.45mm, 1.0mm, 0.74mm, 0.53mm, 0.4mm later, is 0.4mm to obtain thickness
Finished product cold rolling coil.
6. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid B, cast-rolling stock is processed according to following thickness-tapered, is passed through 6.8mm, 4.7mm, 3.1mm, 2.1mm successively and is carried out weight later
Cut roll side continues the sequence of 1.45mm, 1.0mm, 0.78mm, 0.60mm later, to obtain the finished product that thickness is 0.6mm
Cold rolling coil.
7. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid B, rollcogging-roll is provided in cold-rolling mill, the roughness range of the rollcogging-roll is Ra0.8~1.0 μm.
8. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
It in rapid B, carries out placing rolling oil additives in cold-rolled process, the content of rolling oil additives is 7~8%.
9. high intensity according to claim 1, high ductibility Aluminum Plate and Strip processing technology, which is characterized in that in above-mentioned step
In rapid B, working roll, convexity ranging from 0.02mm~0.03mm of the working roll are provided in cold-rolling mill.
10. according to claim 1, in above-mentioned steps C, the annealing temperature of process annealing processing is 200 DEG C, when continuing
Between for 20~for 24 hours.
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| CN112410626A (en) * | 2020-10-30 | 2021-02-26 | 辽宁忠旺集团有限公司 | Aluminum material for building template and preparation method thereof |
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| CN111647777A (en) * | 2020-05-27 | 2020-09-11 | 江苏鼎胜新能源材料股份有限公司 | Glass division bar aluminum strip and preparation method thereof |
| CN111809082A (en) * | 2020-05-28 | 2020-10-23 | 大力神铝业股份有限公司 | Aluminum alloy material processing technology for hollow glass parting bead |
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