CN110129633A - Furniture Aluminum alloy rivet line and preparation method thereof - Google Patents
Furniture Aluminum alloy rivet line and preparation method thereof Download PDFInfo
- Publication number
- CN110129633A CN110129633A CN201910433708.9A CN201910433708A CN110129633A CN 110129633 A CN110129633 A CN 110129633A CN 201910433708 A CN201910433708 A CN 201910433708A CN 110129633 A CN110129633 A CN 110129633A
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- aluminum alloy
- aluminium
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000137 annealing Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000010792 warming Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 23
- 239000012535 impurity Substances 0.000 claims description 16
- 239000011777 magnesium Substances 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000005336 cracking Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 8
- 238000010622 cold drawing Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000005098 hot rolling Methods 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000013081 microcrystal Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
- C22F1/047—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 magnesium as the next major constituent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
Abstract
The present invention relates to a kind of aluminium alloy, each component including following mass percent: 0.01~0.05wt% of Si；0.08~0.15wt% of Fe；Mn0.05~0.15wt%；1.2~1.7wt% of Mg；0.02~0.10wt% of Cr；0.003~0.020wt% of V；0.008~0.02wt% of Ti；0.00005~0.0002wt% of Be, surplus Al.The present invention also provides a kind of preparation methods of furniture Aluminum alloy rivet line, comprising the following steps: (1) melting；(2) it casts；(3) it rolls；(4) drawing and intermediate annealing: drawing including non-finished product and finished product is drawn；Wherein, when non-finished product is drawn, the every deformation 40%~60% of the section compression ratio of material need to carry out intermediate annealing, then carry out drawing again；When finished product is drawn, the section compression ratio of material is 10%~30% to get arriving the furniture Aluminum alloy rivet line；Intermediate annealing keeps the temperature 4~5 hours the following steps are included: the wire rod after drawing is first warming up to 150~250 DEG C；Then 350~500 DEG C are warming up to the speed of 50~100 DEG C/h again, keep the temperature 0.5~1 hour, is then cooled to room temperature.
Description
Technical field
The present invention relates to metal material fields more particularly to a kind of furniture Aluminum alloy rivet line and preparation method thereof.
Background technique
The connection type of aluminium alloy furniture has welding and riveting at present, wherein riveting material at present be more widely
The pure rivet line of the trade mark 1050, its main feature is that intensity low (80~120MPa of tensile strength) and cold heading cracking rate is higher.Therefore, such as
What solve the problems, such as that rivet line cold heading cracking rate is high with the process of simple economy and mechanical strength it is low be current industry
Focus.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of furniture Aluminum alloy rivet line and its preparation sides
Method, the present invention pass through the innovation of ingredient and process, can not only solve the problems, such as that furniture rivet line cold heading cracking rate is high,
Preferable mechanical performance can also be obtained.
The first purpose of the invention is to provide a kind of aluminium alloys, on the basis of its gross weight, including following mass percent
Each component: 0.01~0.05wt% of Si；0.08~0.15wt% of Fe；Mn0.05~0.15wt%；Mg 1.2~
1.7wt%；0.02~0.10wt% of Cr；0.003~0.020wt% of V；0.008~0.02wt% of Ti；Be 0.00005~
0.0002wt%, surplus are Al and inevitable impurity.
Further, on the basis of its gross weight, aluminium alloy includes each component of following mass percent: Si 0.01~
0.05wt%；0.12~0.15wt% of Fe；0.10~0.15wt% of Mn；1.5~1.7wt% of Mg；Cr 0.05~
0.08wt%；0.009~0.015wt% of V；0.015~0.02wt% of Ti；0.0001~0.0002wt% of Be, surplus Al
And inevitable impurity.
In a specific embodiment of the invention, on the basis of its gross weight, aluminium alloy includes each group of following mass percent
Point: Si 0.03wt%；Fe 0.12wt%；Mn0.10wt%；Mg 1.3wt%；Cr 0.05wt%；V 0.009wt%；
Ti0.015wt%；Be 0.0001wt%, surplus are Al and inevitable impurity.
In still another embodiment of the present invention, on the basis of its gross weight, aluminium alloy includes each of following mass percent
Component: Si 0.01wt%；Fe 0.09wt%；Mn0.05wt%；Mg 1.7wt%；Cr 0.02wt%；V 0.010wt%；
Ti0.010wt%；Be 0.00008wt%, surplus are Al and inevitable impurity.
In another specific embodiment of the present invention, on the basis of its gross weight, aluminium alloy includes each of following mass percent
Component: Si 0.05wt%；Fe 0.15wt%；Mn0.15wt%；Mg 1.5wt%；Cr 0.08wt%；V0.015wt%；Ti
0.02wt%；Be0.0002wt%, surplus are Al and inevitable impurity.
Aluminium alloy of the invention improves the recrystallization temperature and ductility of rivet wire material by the suitable Fe of addition,
However Fe is easy to form coarse iron phase on surface in casting process, therefore by adding suitable V, Be, avoids iron phase in table
Face is enriched with and refines coarse iron phase.
A second object of the present invention is to provide a kind of preparation methods of furniture Aluminum alloy rivet line, using above-mentioned rivet
It is prepared with almag, comprising the following steps:
(1) melting: according to above-mentioned rivet almag at be grouped as will aluminium ingot and aluminium intermediate alloy ingot mix after melt
Refining, smelting temperature are 750~780 DEG C, keep the temperature 30~60min；Then the melt after melting is mixed well, and removed therein
Hydrogen and impurity；
(2) it casts: at 700~750 DEG C, then the temperature of aluminium-magnesium alloy melt clean obtained by step (1) is controlled
Even to be cooled to 300~450 DEG C, cooling velocity is 10~20 DEG C/sec, obtains the slab of internal grain partial size≤150 μm；
(3) it rolls: hot rolling is carried out to the slab, feeding temperature is 380~450 DEG C, and 300 DEG C are cooled to after the completion of rolling
Below；
(4) drawing and intermediate annealing: rolling stock obtained by step (3) is subjected to cold drawing, including non-finished product is drawn and finished product
It draws；Wherein, when non-finished product is drawn, the every deformation 40%~60% of the section compression ratio of material need to carry out intermediate annealing, then carry out again
Drawing；When finished product is drawn, the section compression ratio of material is 10%~30% to get arriving the furniture Aluminum alloy rivet line；
In order to control the grain size after non-finished product draws annealing, inventor is by largely testing, it is determined that a kind of novel
Annealing process-L&H intermediate annealing process is to go de-stress, and the intermediate annealing process is the following steps are included: by the wire rod after drawing
150~250 DEG C are first warming up to, keeps the temperature 4~5 hours；Then 350~500 DEG C are warming up to the speed of 50~100 DEG C/h again, protected
Temperature 0.5~1 hour, is then cooled to room temperature.
Further, in step (1), the melt after melting is stirred into 30~60min and is mixed well with realizing.
Further, it in step (2), is cooled down by the wheeled copper mold of water cooling.
Further, in step (3), cooled down using water or emulsion.
Further, emulsion is Quaker (Kui Ke) the Al WP105 of concentration 8~11%.The emulsion can pass through business
Approach obtains.
Further, in step (4), cold drawing carries out under the conditions of temperature is 20~60 DEG C.
Further, it in step (4), during the intermediate annealing, is cooled down in air.
Third object of the present invention is to provide a kind of using furniture Aluminum alloy rivet prepared by above-mentioned preparation method
Line, on the basis of its gross weight, each component including following mass percent: 0.01~0.05wt% of Si；Fe 0.08~
0.15wt%；Mn0.05~0.15wt%；1.2~1.7wt% of Mg；0.02~0.10wt% of Cr；V 0.003~
0.020wt%；0.008~0.02wt% of Ti；0.00005~0.0002wt% of Be, surplus are Al and inevitable impurity；
Its cross-sectional grain partial size≤50 μm of furniture Aluminum alloy rivet line prepared by above-mentioned preparation method, longitudinal section are brilliant
Grain partial size≤100 μm；Tensile strength is 150~220MPa, and elongation percentage >=8% processes cold heading cracking rate≤0.01% of rivet.
According to the above aspect of the present invention, the present invention has at least the following advantages:
L&H annealing process of the invention may insure cross-sectional grain partial size≤50 μm of furniture Aluminum alloy rivet line,
Longitudinal section size of microcrystal≤100 μm.The improvement of the design and processes of alloying component through the invention, alloy wire obtained resist
Tensile strength is 150~220MPa, and elongation percentage >=8% processes cold heading cracking rate≤0.01% of rivet, can not only solve furniture
With the high problem of rivet line cold heading cracking rate, moreover it is possible to obtain preferable mechanical performance.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is SEM (scanning electron microscope) test result of furniture Aluminum alloy rivet line prepared by comparative example 1；
Fig. 2 is SEM (scanning electron microscope) test result of furniture Aluminum alloy rivet line prepared by embodiment 2.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Embodiment 1
A kind of aluminium alloy, on the basis of its gross weight, each component including following mass percent: Si 0.03wt%；Fe
0.12wt%；Mn0.10wt%；Mg 1.3wt%；Cr 0.05wt%；V 0.009wt%；Ti0.015wt%；Be
0.0001wt%, surplus are Al and inevitable impurity.
Furniture Aluminum alloy rivet line is prepared using above-mentioned aluminium alloy, the method is as follows:
(1) melting: it is incorporated the aluminium ingot and aluminium intermediate alloy ingot of corresponding weight according to mentioned component, and puts into smelting furnace together
Middle melting, keeps the temperature 35min by 760 DEG C of smelting temperature.Then (mixing time 30min) is adequately stirred and to ingredient qualification
Aluminium alloy melt carry out hydrogen and impurity Processing for removing.
(2) it casts: the temperature of the aluminium alloy melt of the resulting cleaning of above-mentioned steps being controlled at 745 DEG C, water is then passed through
Cold wheeled copper mold is rapidly and uniformly cooled to 400 DEG C, and casting process cooling velocity controls between 10~20 DEG C/sec, to obtain
Obtain the slab of internal grain tiny (126 μm of average grain size).
(3) it rolls: hot rolling being carried out to slab obtained by above-mentioned steps, and obtains the pole stock of required line footpath (with 5.9mm specification
For rivet line, Φ 9.0mm is needed).Using the tandem mill carried out together with conticaster, the temperature control that blank enters milling train exists
420 DEG C, material temperature is down to 280 DEG C with water or emulsion at once after the completion of rolling.
(4) drawing (non-finished product drawing) and intermediate annealing: above-mentioned gained line footpath Φ 9.0mm pole stock cold drawing is non-to Φ 6.3mm
When finished product is drawn, the every deformation 40%~60% of the section compression ratio of material (need to first be warming up to 200 using the annealing of L&H annealing process
DEG C, keep the temperature 4 hours；Then it is brought rapidly up again with the speed of 100 DEG C/h to 450 DEG C, keeps the temperature 0.5 hour, be air-cooled to room temperature).
(5) drawing (finished product drawing): will be drawn to Φ 6.3mm and move back fiery wire drawing to required line footpath Φ 5.9mm.
Obtained furniture Aluminum alloy rivet line (Φ 5.9mm) is tested for the property, cross section average crystal grain ruler
Very little 47 μm, 95 μm of longitudinal section average grain size, tensile strength 180MPa, elongation percentage 10% processes the cold heading cracking rate of rivet
0.005%.
Embodiment 2
A kind of aluminium alloy, on the basis of its gross weight, each component including following mass percent: Si 0.01wt%；Fe
0.09wt%；Mn0.05wt%；Mg 1.7wt%；Cr 0.02wt%；V 0.010wt%；Ti0.010wt%；Be
0.00008wt%, surplus are Al and inevitable impurity.
Furniture Aluminum alloy rivet line is prepared using above-mentioned aluminium alloy, the method is as follows:
(1) melting: it is incorporated the aluminium ingot and aluminium intermediate alloy ingot of corresponding weight according to mentioned component, and puts into smelting furnace together
Middle melting, keeps the temperature 40min by 755 DEG C of smelting temperature.Then (mixing time 30min) is adequately stirred and to ingredient qualification
Aluminium alloy melt carry out hydrogen and impurity Processing for removing.
(2) it casts: the temperature of the aluminium alloy melt of the resulting cleaning of above-mentioned steps being controlled at 735 DEG C, water is then passed through
Cold wheeled copper mold is rapidly and uniformly cooled to 350 DEG C, and casting process cooling velocity controls between 10~20 DEG C/sec, to obtain
Obtain the slab of internal grain tiny (120 μm of average grain size).
(3) it rolls: hot rolling being carried out to slab obtained by above-mentioned steps, and obtains the pole stock of required line footpath (with 4.6mm specification
For rivet line, Φ 9.0mm is needed).Using the tandem mill carried out together with conticaster, the temperature control that blank enters milling train exists
400 DEG C, material temperature is down to 250 DEG C with water or emulsion at once after the completion of rolling.
(4) drawing (non-finished product drawing) and intermediate annealing: above-mentioned gained line footpath Φ 7.5mm pole stock cold drawing to Φ 5.35mm,
When non-finished product is drawn, the every deformation 40%~60% of the section compression ratio of material (need to first be warming up to 160 using the annealing of L&H annealing process
DEG C, keep the temperature 5 hours；Then it is brought rapidly up again with the speed of 80 DEG C/h to 380 DEG C, keeps the temperature 1 hour, be air-cooled to room temperature).
(5) drawing (finished product drawing): will be drawn to Φ 5.35mm and move back fiery wire drawing to required line footpath Φ 4.6mm.
Obtained furniture Aluminum alloy rivet line (Φ 4.6mm) is tested for the property, cross section average crystal grain ruler
Very little 46 μm, 88 μm of longitudinal section average grain size；Tensile strength 200MPa, elongation percentage 9% process the cold heading cracking rate of rivet
0.008%.
Embodiment 3
A kind of aluminium alloy, on the basis of its gross weight, each component including following mass percent: Si 0.05wt%；Fe
0.15wt%；Mn0.15wt%；Mg 1.5wt%；Cr 0.08wt%；V0.015wt%；Ti 0.02wt%；
Be0.0002wt%, surplus are Al and inevitable impurity.
Furniture Aluminum alloy rivet line is prepared using above-mentioned aluminium alloy, the method is as follows:
(1) melting: it is incorporated the aluminium ingot and aluminium intermediate alloy ingot of corresponding weight according to mentioned component, and puts into smelting furnace together
Middle melting, keeps the temperature 60min by 780 DEG C of smelting temperature.Then (mixing time 30min) is adequately stirred and to ingredient qualification
Aluminium alloy melt carry out hydrogen and impurity Processing for removing.
(2) it casts: the temperature of the aluminium alloy melt of the resulting cleaning of above-mentioned steps being controlled at 750 DEG C, water is then passed through
Cold wheeled copper mold is rapidly and uniformly cooled to 450 DEG C, and casting process cooling velocity controls between 10~20 DEG C/sec, to obtain
Obtain the slab of internal grain tiny (150 μm of average grain size).
(3) it rolls: hot rolling being carried out to slab obtained by above-mentioned steps, and obtains the pole stock of required line footpath (with 3.8mm specification
For rivet line, Φ 7.5mm is needed).Using the tandem mill carried out together with conticaster, the temperature control that blank enters milling train exists
420 DEG C, material temperature is down to 250 DEG C with water or emulsion at once after the completion of rolling.
(4) drawing (non-finished product drawing) and intermediate annealing: above-mentioned gained line footpath Φ 7.5mm pole stock cold drawing is non-to Φ 5.5mm
When finished product is drawn, the every deformation 40%~60% of the section compression ratio of material (need to first be warming up to 200 using the annealing of L&H annealing process
DEG C, keep the temperature 4 hours；Then it is brought rapidly up again with the speed of 100 DEG C/h to 500 DEG C, keeps the temperature 0.5 hour, be air-cooled to room temperature).
(5) drawing (finished product drawing): will be drawn to Φ 5.5mm and move back fiery wire drawing to required line footpath Φ 3.8mm.
Obtained furniture Aluminum alloy rivet line (Φ 3.8mm) is tested for the property, cross section average crystal grain ruler
Very little 50 μm, 100 μm of longitudinal section average grain size；Tensile strength 194MPa, elongation percentage 8.2% process the cold heading cracking of rivet
Rate 0.01%.
Comparative example 1
A kind of aluminium alloy, on the basis of its gross weight, each component including following mass percent: Si0.03wt%；Fe
0.10wt%；Mn0.07wt%；Mg 1.8wt%；Cr0.02wt%；Ti0.015wt%；Surplus is Al and inevitable impurity.
It is formed using above-mentioned element, the preparation of furniture Aluminum alloy rivet line is carried out according to method same as Example 2.
The aluminum-magnesium alloy wire prepared using this method, 45 μm of cross section average grain size, 90 μm of longitudinal section average grain size；It is anti-
Tensile strength 206MPa, elongation percentage 8% process the cold heading cracking rate 20% of rivet.
Fig. 1 is SEM (scanning electron microscope) the test knot for being not added with furniture Aluminum alloy rivet line prepared by V and Be element
Fruit, it can be seen from the figure that prepared alloy surface has coarse iron phase, and (top grey bulk particle is i.e. when being not added with V and Be
For iron phase).
Fig. 2 is SEM (scanning electron microscope) test result of furniture Aluminum alloy rivet line prepared by embodiment 2, Cong Tuzhong
As can be seen that the alloy surface is without coarse iron phase.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of aluminium alloy, which is characterized in that on the basis of its gross weight, each component including following mass percent: Si 0.01
~0.05wt%；0.08~0.15wt% of Fe；Mn0.05~0.15wt%；1.2~1.7wt% of Mg；Cr 0.02~
0.10wt%；0.003~0.020wt% of V；0.008~0.02wt% of Ti；0.00005~0.0002wt% of Be, surplus are
Al。
2. aluminium alloy according to claim 1, it is characterised in that: on the basis of its gross weight, including following mass percent
Each component: 0.01~0.05wt% of Si；0.12~0.15wt% of Fe；0.10~0.15wt% of Mn；Mg 1.5~
1.7wt%；0.05~0.08wt% of Cr；0.009~0.015wt% of V；0.015~0.02wt% of Ti；Be 0.0001~
0.0002wt%, surplus Al.
3. a kind of preparation method of furniture Aluminum alloy rivet line, which is characterized in that closed using aluminium of any of claims 1 or 2
Gold preparation, comprising the following steps:
(1) melting: aluminium alloy according to claim 1 or 2 at be grouped as will be after aluminium ingot and aluminium intermediate alloy ingot mix
Melting, smelting temperature are 750~780 DEG C, keep the temperature 30~60min；Then the melt after melting is mixed well, and removed wherein
Hydrogen and impurity；
(2) it casts: the temperature of aluminium-magnesium alloy melt clean obtained by step (1) is controlled at 700~750 DEG C, it is then uniformly cold
But to 300~450 DEG C, cooling velocity is 10~20 DEG C/sec, obtains the slab of internal grain partial size≤150 μm；
(3) roll: to the slab carry out hot rolling, feeding temperature be 380~450 DEG C, rolling after the completion of be cooled to 300 DEG C with
Under；
(4) drawing and intermediate annealing: rolling stock obtained by step (3) is subjected to cold drawing, including non-finished product is drawn and finished product is drawn；Its
In, when non-finished product is drawn, the every deformation 40%~60% of the section compression ratio of material need to carry out intermediate annealing, then carry out drawing again；
When finished product is drawn, the section compression ratio of material is 10%~30% to get arriving the furniture Aluminum alloy rivet line；
The intermediate annealing keeps the temperature 4~5 hours the following steps are included: the wire rod after drawing is first warming up to 150~250 DEG C；So
350~500 DEG C are warming up to the speed of 50~100 DEG C/h again afterwards, 0.5~1 hour is kept the temperature, is then cooled to room temperature.
4. preparation method according to claim 3, it is characterised in that: in step (1), by the melt stirring 30 after melting
~60min is mixed well with realizing.
5. preparation method according to claim 3, it is characterised in that: in step (2), carried out by the wheeled copper mold of water cooling
It is cooling.
6. preparation method according to claim 3, it is characterised in that: in step (3), dropped using water or emulsion
Temperature.
7. preparation method according to claim 6, it is characterised in that: the emulsion is the Quaker of concentration 8~11%
Al WP105。
8. preparation method according to claim 3, it is characterised in that: in step (4), cold drawing is 20~60 in temperature
It is carried out under the conditions of DEG C.
9. preparation method according to claim 3, it is characterised in that: in step (4), during the intermediate annealing,
It is cooled down in air.
10. furniture Aluminum alloy rivet line prepared by a kind of preparation method as claimed in claim 3, which is characterized in that with it
On the basis of gross weight, each component including following mass percent: 0.01~0.05wt% of Si；0.08~0.15wt% of Fe；
Mn0.05~0.15wt%；1.2~1.7wt% of Mg；0.02~0.10wt% of Cr；0.003~0.020wt% of V；Ti
0.008~0.02wt%；0.00005~0.0002wt% of Be, surplus are Al and inevitable impurity；
Cross-sectional grain partial size≤50 μm of the furniture Aluminum alloy rivet line, longitudinal section size of microcrystal≤100 μm；Tension is strong
Degree is 150~220MPa, and elongation percentage >=8% processes cold heading cracking rate≤0.01% of rivet.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780558A (en) * | 2022-12-07 | 2023-03-14 | 东北轻合金有限责任公司 | Efficient production method of 7XXX aluminum alloy rivet wire for aerospace |
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| CN102682921A (en) * | 2012-05-14 | 2012-09-19 | 广西平果博导铝镁线缆有限公司 | Continuous two-stage annealing method for aluminum-magnesium alloy |
| CN106834827A (en) * | 2016-12-26 | 2017-06-13 | 江苏亨通电力特种导线有限公司 | The preparation method of microalloying Al Mg rod of metal alloy |
| WO2018162823A1 (en) * | 2017-03-10 | 2018-09-13 | Constellium Issoire | Aluminium alloy vacuum chamber elements which are stable at high temperature |
| CN109136679A (en) * | 2018-11-01 | 2019-01-04 | 中南大学 | A kind of aluminium alloy strips and preparation method thereof for processing small-sized hardware stamping part for continuous deep-draw |
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2019
- 2019-05-23 CN CN201910433708.9A patent/CN110129633B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102682921A (en) * | 2012-05-14 | 2012-09-19 | 广西平果博导铝镁线缆有限公司 | Continuous two-stage annealing method for aluminum-magnesium alloy |
| CN106834827A (en) * | 2016-12-26 | 2017-06-13 | 江苏亨通电力特种导线有限公司 | The preparation method of microalloying Al Mg rod of metal alloy |
| WO2018162823A1 (en) * | 2017-03-10 | 2018-09-13 | Constellium Issoire | Aluminium alloy vacuum chamber elements which are stable at high temperature |
| CN109136679A (en) * | 2018-11-01 | 2019-01-04 | 中南大学 | A kind of aluminium alloy strips and preparation method thereof for processing small-sized hardware stamping part for continuous deep-draw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115780558A (en) * | 2022-12-07 | 2023-03-14 | 东北轻合金有限责任公司 | Efficient production method of 7XXX aluminum alloy rivet wire for aerospace |
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