CN107829059A - A kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, Al-alloy products and preparation method thereof - Google Patents
A kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, Al-alloy products and preparation method thereof Download PDFInfo
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- CN107829059A CN107829059A CN201711070374.0A CN201711070374A CN107829059A CN 107829059 A CN107829059 A CN 107829059A CN 201711070374 A CN201711070374 A CN 201711070374A CN 107829059 A CN107829059 A CN 107829059A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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Abstract
A kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, Al-alloy products and preparation method thereof, it is related to the technical field of heat treatment of aluminium alloy, the solid solution treatment method of the reduction aluminum alloy extrusion blibbing is that borofluoride is added in Solution Treatment Furnace, aluminum alloy extrusion is placed in Solution Treatment Furnace and carries out solution treatment, this method need not change solid solution treatment process, can effectively reduce the generation of aluminum alloy extrusion blibbing during solution treatment.The Al-alloy products are that Homogenization Treatments, extruding are carried out to aluminium alloy stock；Solution treatment is carried out to aluminum alloy extrusion according to the solid solution treatment method of above-mentioned reduction aluminum alloy extrusion blibbing；Ageing Treatment is carried out again, obtains Al-alloy products, and this method is simple, can obtain the product that surface quality is intact, combination property is good, meets the requirement of client, can reduce the generation of disqualification rate in addition, improves production efficiency, reduces manufacturing cost.
Description
Technical field
The present invention relates to the technical field of heat treatment of aluminium alloy, and more particularly to a kind of reduction aluminum alloy extrusion surface gas
The solid solution treatment method of bubble, Al-alloy products and preparation method thereof.
Background technology
Aluminum alloy materials proportion is small, specific strength is high, good corrosion resistance, has good forming property, mechanical property, physics
Performance and processing performance, it is widely used in automobile making, communications and transportation and aerospace field.Al-alloy products preparation process
In solution treatment be very important heat treatment step, according to requirement, aluminium alloy extruded casting mostly needs to be dissolved
Processing, that is, quench.Appropriate solution treatment can be that follow-up Ageing Treatment lays preferable basis, promote aging alloy to be formed tiny
The precipitated phase of disperse, preferably strengthen effect so as to obtain, make product that there is good mechanical property.
Aluminium alloy extruded casting is usually to be extruded from by aluminium alloy cast rod, and aluminium alloy cast rod has gas in extrusion process
Body and volatile coating are mingled with into recipient or mold cavity, if gas and the flue gas of coating volatilization have little time to discharge, meeting
It is closed and is compressed in extruding metal in subsequent High Pressure Solidification.Under normal temperature condition, these indrawn gases and coating
Slag inclusion is subtle in extrusion, but when these extrusions carry out solution treatment or high-temperature heating, parent metal
It can significantly soften, and be closed and compress gas therein and non-volatile grease aqueous vapor and drastically can volatilize and expand, make extruding
The position of part produces bubble, is as heat-treated " bubble ", these Air Bubble Sizes differ, more in dense distribution.In addition, it is being dissolved
In heat treatment process, if heat treatment temperature is too high, soaking time is long, furnace atmosphere high humidity, can cause aluminium alloy extruded
The substantial amounts of high-temperature vapor of part surface aggregation, vapor can enter parent metal top layer, most end form at extrusion surface defect
Cheng Xin bubble.Caused bubble can directly influence extrusion surface quality in heat treatment process, can also reduce the power of product
Performance and corrosion resistance are learned, ultimately results in and produces more waste product, production efficiency is low, energy consumption is high.
The generation of bubble in heat treatment process typically is reduced by two kinds of means at present, one kind was extruded by control
Journey, such as select suitable fashion of extrusion, adjusting process, optimize mould structure means to suppress generation of the bubble in compression stage,
But the means can not solve the problems, such as to produce new bubble in heat treatment process.Another kind is by selecting suitable solution treatment
Process conditions, such as reduce solid solubility temperature, reduce soaking time means to slow down the generation of the new bubble in heat treatment process, but
The means effect is poor, and the overall performance of product can be influenceed after being adjusted on solid solution treatment process.
For this reason, it may be necessary to one kind can reduce product surface bubble in the solution treatment stage and not change solid solution treatment process sheet
The method of body.
The content of the invention
It is an object of the invention to provide a kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, without changing
Become solid solution treatment process, effectively reduce the generation of bubble during solution treatment, improve products surface quality.
Another object of the present invention is to provide a kind of preparation method of Al-alloy products, the technique is simple.
Another object of the present invention is to provide a kind of Al-alloy products, products surface quality is good, and alloy property is good.
The present invention is solved its technical problem and realized using following technical scheme.
The present invention proposes a kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, and it is in Solution Treatment Furnace
Middle addition borofluoride, aluminum alloy extrusion is placed in Solution Treatment Furnace and carries out solution treatment.
Further, in present pre-ferred embodiments, borofluoride is ammonium fluoroborate, sodium fluoborate, fluoboric acid aluminium, fluorine
One kind or at least two combination in Firebrake ZB.
Further, in present pre-ferred embodiments, the addition of borofluoride is the 10 of aluminum alloy extrusion weight
~30g/ tons.
Further, in present pre-ferred embodiments, the addition manner of borofluoride is：It is sprinkled upon aluminum alloy extrusion table
Face or be fitted into aluminium vessel is placed in Solution Treatment Furnace again.
Further, in present pre-ferred embodiments, solution treatment is：After heating, isothermal holding, reusing temperature is
25~40 DEG C of water carries out water hardening to aluminum alloy extrusion.
A kind of preparation method of Al-alloy products, it comprises the following steps：
Homogenization Treatments are carried out to aluminium alloy stock, obtain aluminium alloy castings；
Aluminium alloy castings is extruded, obtains aluminum alloy extrusion；
According to the solid solution treatment method of above-mentioned reduction aluminum alloy extrusion blibbing, aluminum alloy extrusion is consolidated
Molten processing, obtain aluminum alloy quenching part；
Ageing Treatment is carried out to aluminum alloy quenching part, obtains Al-alloy products.
Further, in present pre-ferred embodiments, the method for Homogenization Treatments is：With 20-45 DEG C of heating rate/
Min is warming up to 460 DEG C -500 DEG C, is incubated 20-32h, cooling.
Further, in present pre-ferred embodiments, natrual ageing or artificial aging can be selected according to different-alloy,
The processing method of artificial aging is：Aging temp is 120 DEG C -170 DEG C, insulation 10-24h.
A kind of Al-alloy products, it is made according to the preparation method of above-mentioned Al-alloy products.
Further, in present pre-ferred embodiments, Al-alloy products are 2 to be alloy or 7 be alloy.
Solid solution treatment method, Al-alloy products and its system of the reduction aluminum alloy extrusion blibbing of the embodiment of the present invention
The beneficial effect of Preparation Method is：The solid solution treatment method of the reduction aluminum alloy extrusion blibbing of the embodiment of the present invention is solid
Borofluoride is added in molten treatment furnace, aluminum alloy extrusion is placed in Solution Treatment Furnace and carries out solution treatment, this method need not
Change solid solution treatment process, can effectively reduce the generation of aluminum alloy extrusion blibbing during solution treatment.The present invention
The Al-alloy products of embodiment are that Homogenization Treatments, extruding are carried out to aluminium alloy stock, obtain aluminum alloy extrusion；According to above-mentioned
The solid solution treatment method for reducing aluminum alloy extrusion blibbing carries out solution treatment to aluminum alloy extrusion；Carry out again at timeliness
Reason, obtains Al-alloy products, this method is simple, can obtain the product that surface quality is intact, combination property is good, meets making for client
With requiring, the generation of disqualification rate can be reduced in addition, improves production efficiency, reduce manufacturing cost.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is the conventional production that can be obtained by commercially available purchase
Product.
Solid solution treatment method, the Al-alloy products of reduction aluminum alloy extrusion blibbing to the embodiment of the present invention below
And preparation method thereof be specifically described.
The embodiment of the present invention provides a kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, and it is to be dissolved
Borofluoride is added in treatment furnace, aluminum alloy extrusion is placed in Solution Treatment Furnace and carries out solution treatment.
In the present embodiment, borofluoride is ammonium fluoroborate, sodium fluoborate, fluoboric acid aluminium, one kind in zinc fluoroborate or extremely
Few two kinds of combination, more from ammonium fluoroborate, ammonium fluoroborate is white powder or colorless needle crystals, molecular formula NH4BF4, relatively
It is monoclinic crystal below 104.8,205 DEG C of molecular mass, is cubic crystal more than 205 DEG C, 1.871,220 DEG C of relative density rises
China.The addition of borofluoride is 10~30g/ tons of aluminum alloy extrusion weight.The addition manner of borofluoride can be：Spill
It is placed in again in Solution Treatment Furnace on aluminum alloy extrusion surface or be fitted into aluminium vessel.
In the present embodiment, Solution Treatment Furnace can be bedroom stove or vertical heater.
In the present embodiment, the medium of solution treatment is water, specifically heating, after isothermal holding, reuse temperature for 25~
40 DEG C of water carries out water hardening to aluminum alloy extrusion.The solid solution treatment method of the present embodiment can reinforced aluminum suitable for heat treatment
The production of alloy extrusions, it 2 is alloy that aluminum alloy extrusion, which can be, or 7 be alloy, heating temperature during specific solution treatment
Degree and soaking time are selected according to different-alloy.
The solid solution treatment method of the embodiment of the present invention is by adding borofluoride, borofluoride distillation in solution treatment
Into gas shield aluminum alloy extrusion surface, purpose caused by bubble is reduced so as to realize.By taking ammonium fluoroborate as an example, it reduces gas
The mechanism of action is caused by bubble：220 DEG C are increased to solid solubility temperature, ammonium fluoroborate rapid sublimation is gas, is spread in solid
In molten treatment furnace, protective atmosphere is formed on aluminum alloy extrusion surface, this layer protection gas effectively prevents high-temperature water
Steam penetrates into matrix surface, it is suppressed that the generation of new bubble, finally reduces whole product surface number of bubbles, improves product product
Matter.
The embodiment of the present invention provides a kind of preparation method of Al-alloy products, and it comprises the following steps：
S1, Homogenization Treatments are carried out to aluminium alloy stock, the method for Homogenization Treatments is specifically：With heating rate 20-45
DEG C/min is warming up to 460 DEG C -500 DEG C, 20-32h is incubated, cooling, obtains aluminium alloy castings.
S2, aluminium alloy castings extruded, obtain aluminum alloy extrusion.
S3, the solid solution treatment method according to above-mentioned reduction aluminum alloy extrusion blibbing, enter to aluminum alloy extrusion
Row solution treatment, obtain aluminum alloy quenching part.
S4, Ageing Treatment is carried out to aluminum alloy quenching part, natrual ageing or artificial aging can be selected according to different-alloy,
The specific processing method of artificial aging is：Aging temp is 120 DEG C -170 DEG C, insulation 10-24h, obtains Al-alloy products.
The embodiment of the present invention provides a kind of Al-alloy products, and it is made according to the preparation method of above-mentioned Al-alloy products.
Al-alloy products can 2 be alloy or 7 be alloy.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment provides a kind of 7075 aluminium alloy flats row, and it is specifically to be made according to following preparation method：
A. 7075 aluminium alloy castingses after Homogenization Treatments are extruded, obtain 7075 aluminium alloy extruded flat rows,
Homogenization Treatments process conditions are：465-475 DEG C is warming up to 22 DEG C/min of heating rate, is incubated 24h, cooling.
B. ammonium fluoroborate is spilled on 7075 aluminium alloy extruded flat rows, addition is the 15g/ of 7075 aluminium alloy extruded flat rows
Ton, enter with roller-way in horizontal Solution Treatment Furnace and carry out solution treatment, solid solution treatment process condition is：Treatment temperature 471 ± 5
DEG C, 180min is incubated, hardening media is water, and water temperature is 30 DEG C.
After solution treatment, the surface quality of flat row aluminium alloy extruded to 7075 is tested, it is found that 7075 aluminium alloy squeezes
The row of flattening surface is smooth；Compared under similarity condition, the processing mode that does not add ammonium fluoroborate compare, the present embodiment solution treatment
Do not produce blibbing afterwards.
C. the flat row artificial aging that discharges into aluminium alloy extruded to 7075 is handled, and artificial aging treatment process condition is：Timeliness temperature
Spend for 120 DEG C, insulation 10h, obtain 7075 aluminium alloy flats row.The surface quality of 7075 aluminium alloy flats row is tested, found
7075 aluminium alloy flat row surface still unusual light.
Embodiment 2
The present embodiment provides a kind of 7075 aluminium alloy flats row, and it is specifically to be made according to following preparation method：
A. 7075 aluminium alloy castingses after Homogenization Treatments are extruded, obtain 7075 aluminium alloy extruded flat rows,
Homogenization Treatments process conditions are：470-480 DEG C is warming up to 25 DEG C/min of heating rate, is incubated 24h, cooling.
B. be spilled on 7075 aluminium alloy extruded flat rows ammonium fluoroborate and zinc fluoroborate (ammonium fluoroborate accounts for the 60% of quality,
Zinc fluoroborate account for quality 40%), total addition be 7075 aluminium alloy extruded flat rows 20g/ tons, enter horizontal solid solution with roller-way
Solution treatment is carried out in treatment furnace, solid solution treatment process condition is：471 ± 5 DEG C for the treatment of temperature, it is incubated 180min, hardening media
For water, water temperature is 30 DEG C.
After solution treatment, the surface quality of flat row aluminium alloy extruded to 7075 is tested, it is found that 7075 aluminium alloy squeezes
The row of flattening surface is smooth；Compared under similarity condition, do not add ammonium fluoroborate and compared with the processing mode of zinc fluoroborate, this implementation
Blibbing is not produced after example solution treatment.
C. the flat row artificial aging that discharges into aluminium alloy extruded to 7075 is handled, and artificial aging treatment process condition is：Timeliness temperature
Spend for 150 DEG C, insulation 10h, obtain 7075 aluminium alloy flats row.The surface quality of 7075 aluminium alloy flats row is tested, found
7075 aluminium alloy flat row surface still unusual light.
Embodiment 3
The present embodiment provides a kind of 7150 aluminium alloy extrusions, and it is specifically to be made according to following preparation method：
A. 7150 aluminium alloy castingses after Homogenization Treatments are extruded, obtain 7150 aluminum alloy extrusion section bars,
Homogenization Treatments process conditions are：465-475 DEG C is warming up to 30 DEG C/min of heating rate, is incubated 26h, cooling.
B. be spilled into 7150 aluminum alloy extrusion section bars ammonium fluoroborate and sodium fluoborate (ammonium fluoroborate accounts for the 70% of quality,
Sodium fluoborate account for quality 30%), total addition be 7150 aluminum alloy extrusion section bars 25g/ tons, enter horizontal solid solution with roller-way
Solution treatment is carried out in treatment furnace, solid solution treatment process condition is：470 ± 5 DEG C for the treatment of temperature, is incubated 60min, and hardening media is
Water, water temperature are 40 DEG C.
After solution treatment, the surface quality of 7150 aluminum alloy extrusion section bars is tested, it is found that 7150 aluminium alloy squeezes
Press Surface of profile smooth；Compared under similarity condition, do not add ammonium fluoroborate and compared with the processing mode of sodium fluoborate, this implementation
Blibbing is not produced after example solution treatment.
C. artificial aging processing is carried out to 7150 aluminum alloy extrusion section bars, artificial aging treatment process condition is：Timeliness temperature
Spend for 120 DEG C, insulation 24h, obtain 7150 aluminium alloy extrusions.The surface quality of 7150 aluminium alloy extrusions is tested, found
The 7150 aluminium alloy section surface still unusual light.
Embodiment 4
The present embodiment provides a kind of 2026 aluminium alloy extrusions, and it is specifically to be made according to following preparation method：
A. 2026 aluminium alloy castingses after Homogenization Treatments are extruded, obtain 2026 aluminum alloy extrusion section bars,
Homogenization Treatments process conditions are：490-500 DEG C is warming up to 30 DEG C/min of heating rate, is incubated 24h, cooling.
B. ammonium fluoroborate is held in aluminium vessel, and is hung on 2026 aluminum alloy extrusion section bars, ammonium fluoroborate
Addition is the 25g/ tons of 2026 aluminum alloy extrusion section bars, 2026 aluminum alloy extrusion section bars is entered in vertical Solution Treatment Furnace
Solution treatment is carried out, solid solution treatment process condition is：495 ± 3 DEG C for the treatment of temperature, 120min is incubated, hardening media is water, water temperature
For 30 DEG C.
After solution treatment, 2026 aluminum alloy extrusion section bar surface quality are tested, it is found that this is 2026 aluminium alloy extruded
Surface of profile is smooth；Compared under similarity condition, the processing mode that does not add ammonium fluoroborate compare, after the present embodiment solution treatment
Blibbing is not produced.
C. after carrying out natural aging treatment to 2026 aluminum alloy extrusion section bars, the surface quality of 2026 aluminium alloy extrusions is entered
Performing check, find the 2026 aluminium alloy section surface still unusual light.
Embodiment 5
The present embodiment provides a kind of 2024 aluminium alloy extrusions, and it is specifically to be made according to following preparation method：
A. 2024 aluminium alloy castingses after Homogenization Treatments are extruded, obtain 2024 aluminum alloy extrusion section bars,
Homogenization Treatments process conditions are：490-500 DEG C is warming up to 20-45 DEG C/min of heating rate, is incubated 24h, cooling.
B. held in aluminium vessel ammonium fluoroborate and fluoboric acid aluminium (ammonium fluoroborate accounts for 65%, 35%) fluoboric acid aluminium accounts for,
And hung on 2024 aluminum alloy extrusion section bars, total addition of ammonium fluoroborate and fluoboric acid aluminium is 2024 aluminium alloy extruded types
The 20g/ tons of material, 2024 aluminum alloy extrusion section bars is entered in vertical Solution Treatment Furnace and carry out solution treatment, solid solution treatment process
Condition is：493 ± 3 DEG C for the treatment of temperature, 80min is incubated, hardening media is water, and water temperature is 30 DEG C.
After solution treatment, 2024 aluminum alloy extrusion section bar surface quality are tested, it is found that this is 2024 aluminium alloy extruded
Surface of profile is smooth；Compared under similarity condition, do not add ammonium fluoroborate and compared with the processing mode of fluoboric acid aluminium, the present embodiment
Blibbing is not produced after solution treatment.
C. to entering after 2024 aluminum alloy extrusion section bars progress natural aging treatment to the surface quality of 2024 aluminium alloy extrusions
Performing check, find the 2024 aluminium alloy section surface still unusual light.
In summary, the solid solution treatment method of the reduction aluminum alloy extrusion blibbing of the embodiment of the present invention, without changing
The generation of bubble during solution treatment can effectively be reduced by becoming solid solution treatment process, improve products surface quality；The present invention is implemented
The preparation method of the Al-alloy products of example, the technique is simple, and the products surface quality of obtained Al-alloy products is good, alloy property
It is good.
Embodiments described above is part of the embodiment of the present invention, rather than whole embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
1. a kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, it is characterised in that it is in Solution Treatment Furnace
Middle addition borofluoride, aluminum alloy extrusion is placed in the Solution Treatment Furnace and carries out solution treatment.
2. the solid solution treatment method according to claim 1 for reducing aluminum alloy extrusion blibbing, it is characterised in that institute
It is ammonium fluoroborate, sodium fluoborate, fluoboric acid aluminium, one kind in zinc fluoroborate or at least two combination to state borofluoride.
3. the solid solution treatment method according to claim 1 for reducing aluminum alloy extrusion blibbing, it is characterised in that institute
The addition for stating borofluoride is 10~30g/ tons of aluminum alloy extrusion weight.
4. the solid solution treatment method according to claim 1 for reducing aluminum alloy extrusion blibbing, it is characterised in that institute
The addition manner for stating borofluoride is：It is sprinkled upon aluminum alloy extrusion surface or loads in aluminium vessel and is placed in Solution Treatment Furnace again
In.
5. the solid solution treatment method according to claim 1 for reducing aluminum alloy extrusion blibbing, it is characterised in that institute
Stating solution treatment is：After heating, isothermal holding, reuse the water that temperature is 25~40 DEG C and aluminum alloy extrusion progress water cooling is quenched
Fire.
6. a kind of preparation method of Al-alloy products, it is characterised in that it comprises the following steps：
Homogenization Treatments are carried out to aluminium alloy stock, obtain aluminium alloy castings；
The aluminium alloy castings is extruded, obtains aluminum alloy extrusion；
According to the solid solution treatment method as claimed in claim 1 for reducing aluminum alloy extrusion blibbing, to aluminium alloy extruded
Part carries out solution treatment, obtains aluminum alloy quenching part；
Ageing Treatment is carried out to the aluminum alloy quenching part, obtains Al-alloy products.
7. the preparation method of Al-alloy products according to claim 6, it is characterised in that the method for the Homogenization Treatments
It is：460 DEG C -500 DEG C are warming up to 20-45 DEG C/min of heating rate, is incubated 20-32h, cooling.
8. the preparation method of Al-alloy products according to claim 6, it is characterised in that can be selected according to different-alloy
Natrual ageing or artificial aging, the processing method of the artificial aging are：Aging temp is 120 DEG C -170 DEG C, insulation 10-24h.
9. a kind of Al-alloy products, it is characterised in that it is according to the Al-alloy products as any one of claim 6 to 8
Preparation method be made.
10. Al-alloy products according to claim 9, it is characterised in that the Al-alloy products are alloy or 7 systems for 2
Alloy.
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| CN201711070374.0A CN107829059A (en) | 2017-11-03 | 2017-11-03 | A kind of solid solution treatment method for reducing aluminum alloy extrusion blibbing, Al-alloy products and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112981287A (en) * | 2021-04-21 | 2021-06-18 | 中国航发北京航空材料研究院 | Method for improving homogenization efficiency of 7000 series aluminum alloy ingot casting |
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| EP0882809A3 (en) * | 1997-05-19 | 1999-08-25 | Henkel Corporation | Composition and process for preventing blistering during heat treating of aluminum alloys |
| WO2004104267A1 (en) * | 2003-05-16 | 2004-12-02 | Alcoa Inc. | Protective fluoride coatings for aluminum alloy articles |
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| EP0882809A3 (en) * | 1997-05-19 | 1999-08-25 | Henkel Corporation | Composition and process for preventing blistering during heat treating of aluminum alloys |
| WO2004104267A1 (en) * | 2003-05-16 | 2004-12-02 | Alcoa Inc. | Protective fluoride coatings for aluminum alloy articles |
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| BRIAN R. STROHMEIER: "Surface characterization of aluminum foil annealed in the presence of ammonium fluoborate", 《APPLIED SURFACE SCIENCE》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112981287A (en) * | 2021-04-21 | 2021-06-18 | 中国航发北京航空材料研究院 | Method for improving homogenization efficiency of 7000 series aluminum alloy ingot casting |
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