CN109576617A - A kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet - Google Patents

A kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet Download PDF

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Publication number
CN109576617A
CN109576617A CN201811560749.6A CN201811560749A CN109576617A CN 109576617 A CN109576617 A CN 109576617A CN 201811560749 A CN201811560749 A CN 201811560749A CN 109576617 A CN109576617 A CN 109576617A
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aluminium alloy
preparation
hot investment
investment casting
line aluminium
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Inventor
赵启忠
何建贤
莫宇飞
韦孙飞
邓松云
曹宇
任月路
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Gaungxi Nannan Aluminum Processing Co Ltd
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Gaungxi Nannan Aluminum Processing Co Ltd
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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
    • 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
    • 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
    • C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
    • 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
    • C22F1/057—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 copper as the next major constituent

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Continuous Casting (AREA)

Abstract

The present invention relates to technical field of aluminum alloy technology, more particularly to a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheets.The preparation method of 6 line aluminium alloy hot investment casting Quenching Sheets of one kind of the invention, it is the chemical component mass percentage in the aluminium alloy cast ingot are as follows: Si 0.4~1.3, Fe≤0.7, Cu≤1.1, Mn≤1.0, Mg 0.4~1.2, Cr≤0.35, Zn≤0.25, Ti≤0.15, its surplus are made of Al and inevitable impurity by melting and casting aluminium alloy cast ingot；Obtained aluminium alloy cast ingot is obtained into aluminium alloy finished product by cutting, solution hardening, stretching, timeliness.Products obtained therefrom fine microstructures of the present invention are uniform, cast state grain structure without rolling texture, holding, and internal stress is extremely low, improves the intensity of cast sheet.In addition to this, by heat treatment process of the invention, grain structure in the alloy, the size of precipitated phase, amount of precipitation and precipitation position are controlled well, largely improves the intensity of the casting panel products.

Description

A kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet
Technical field
The present invention relates to technical field of aluminum alloy technology, more particularly to a kind of preparation side of 6 line aluminium alloy hot investment casting Quenching Sheets Method.
Background technique
Precision aluminium-alloy cast sheet is after a kind of casting without hot rolling, only through Overheating Treatment and machining just application one Class novel aluminum alloy product, the product is widely used in communications and transportation, mechano-electronic, tool and mould, high-end precision instrument etc. at present Field.Compared with steel, the Heterosis of precision aluminium-alloy cast sheet exists: (1) density is small, and the density of aluminium is only three points of steel One of or so, thus aluminium alloy is more suitable for current industrial field lightweight requirements；(2) thermal conductivity is high, and the thermal conductivity of aluminium alloy is about It is 4 times of steel, can significantly shortens the cooling cycle in process, without the cooling system that setting is complicated；(3) machinability is excellent Different, the cutting speed of aluminium alloy can carry out high-speed cutting up to fast 4 times of Steel material, significant to shorten the manufacturing cycle, reduce cutting The abrasion of cutter, thus production cost can be significantly reduced；(4) conductivity is big, the Conductivity Ratio steel of aluminium alloy it is 9 times big, this Extremely advantageous for electro-discharge machining mold, process time just corresponds to the 1/4~1/5 of electro-discharge machining steel mold；(5) Gao Huishou Rate, processes aluminium skimmings and waste and old aluminium sheet is not easy to aoxidize, and can directly melting down progress, melting produces new aluminium ingot again, and the rate of recovery reaches 90 ~95% or more, it is much higher than steel 65%.
Compared with aluminum alloy rolled plate, always there is certain deformation in rolled plate after cutting process and processing, Even distortion excessively causes to scrap, and there is cast sheet specific metallurgy and quite ideal stress to release in the as-cast condition It puts, thus hardly happens deformation and distortion after high-speed cutting processing, compared to rolled products tissue along rolling direction in one Fixed threadiness distribution, product oxidation effectiveness of the invention more preferably, are more advantageous to the oxidation effectiveness of oxygenated products, while of the invention Cast sheet flatness equidimension precision is high, is much higher than aluminum alloy hot rolling band, improves following process precision and reduction client's processing is useless Material etc..
The typical process flow of precision aluminium-alloy cast sheet is as follows: ingredient → melting → refining/degasification/filtering → casting → Homogenizing annealing → sawing, milling face → inspection → packaging → storage or delivery when middle low temperature is long.Current precision aluminium-alloy cast sheet Predominantly 5 line aluminium alloys, such as 5083 and 5052, the shortcomings that producing Al~Mg alloy precision cast sheet such as 5052,5083 at present As follows: cast sheet integral strength is lower, is unable to satisfy requirement of the client to higher-strength precision instrument, seriously limits aluminium alloy The development space of hot investment casting plate；Need the heat treatment of low temperature homogenization and accurate control heating and rate of temperature fall, control in long-time It is improper to make, and internal stresses release is easy to cause not exclusively to generate machining deformation.
Summary of the invention
In place of solving above-mentioned the deficiencies in the prior art, a kind of system of 6 line aluminium alloy hot investment casting Quenching Sheets is provided Preparation Method, the present invention using heat-treatable strengthened aluminum alloy pretensioning plate and quenching plate technique, in conjunction with and retain casting panel products Grain structure and feature performance benefit develop a set of new casting quenching board production technology, can significantly promote aluminium alloy casting Panel products intensity is made, the intensity of T6 state is reached.
The purpose of the present invention is achieved through the following technical solutions:
A kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet, which is characterized in that the method includes following steps It is rapid:
1), melting and casting aluminium alloy cast ingot, chemical component mass percentage in the aluminium alloy cast ingot are as follows:
Si 0.4~1.3, Fe≤0.7, Cu≤1.1, Mn≤1.0, Mg 0.4~1.2, Cr≤0.35, Zn≤0.25, Ti ≤ 0.15, its surplus is made of Al and inevitable impurity；
2) aluminium alloy cast ingot that step 1) obtains, is obtained into aluminium alloy finished product by cutting, solution hardening, stretching, timeliness.
Preferably, during the melting and casting aluminium alloy cast ingot, including degasification, filtering step are carried out to aluminium alloy melt Suddenly, gained aluminium alloy melt hydrogen content is less than or equal to 0.18ml/100gAl.
Preferably, the resulting aluminium alloy ingots thickness≤210mm of the dicing process.
Preferably, the solution hardening temperature is 500~580 DEG C, and soaking time is 5~300min.
Preferably, the solution hardening heating rate is 10~120 DEG C/min.
Preferably, the solution hardening is water quenching, and cooling rate is 10~100 DEG C/s.
Preferably, the extensibility is 1.5~3.0%.
Preferably, the tensile speed is 1.5~15mm/s.
Preferably, the aging temp is 160~185 DEG C, and soaking time is 10~25h.
Sawing, cutting, milling face step are carried out to get required specification product to the aluminium alloy finished product, gained aluminium alloy at Product can carry out sawing according to following technique:
1) 6mm~200*1000mm~1600mm*3000mm~6000mm specification, saw band speed: 1600~2500m/ min；Saw cutting speed: 30~60dm2/min, 260~280mm/min；Charging rate: 70~90%, 45~70mm/min；Expect platform Speed: 60~85mm/mmin.
2), 6mm~200*1600mm~2600mm*3000mm~6000mm specification, saw band speed: 1600~2500m/ min；Saw cutting speed: 30~60dm2/min, 140~190mm/min；Charging rate: 70~90%, 40~70mm/min；Expect platform Speed: 50~80mm/min.
Gained aluminium alloy finished product can carry out milling face according to following technique:
Expect 380~450mm/min of platform charging rate, mills 150~280r/min of face live spindle.
The hot investment casting plate of different size is processed into according to above-mentioned solution hardening, stretching, timeliness, sawing or scalping process. Finished product plate is detected, is packed, is put in storage or delivered.
During melting and casting, by carrying out multi-stage degassing processing to aluminium alloy melt, it can significantly reduce in aluminum melt Air content, to reduce the casting flaws such as the stomata in aluminium alloy cast ingot, loose.The oxidation in aluminum melt is removed using filter plate Object, non-metallic inclusion and other harmful metal impurities, to reduce the casting flaws such as slag inclusion in ingot casting.It 6 is aluminium so as to improve this The castability of alloy cast ingot, and then improve the comprehensive performance of the product.After the above process, hot investment casting plate aluminium is cast out Alloy ingot blank.
Control cutting thickness, is conducive to subsequent solution hardening, guarantees plate harden ability.By solution hardening, make under high temperature Mg, Second phased soln such as Si, Mn, Cu forms supersaturated solid solution to matrix.Quenching sheets are stretched with eliminate internal stress and Align template.Timeliness can make diffusion-precipitation hardening constituent, to improve timber intensity.
The present invention directlys adopt solution hardening and aging thermal treating process, compared with 5 be cast sheet, increases substantially plate Intensity；Panel products are quenched in the hot investment casting plate produced by special cutting, scalping process, are aluminium with rolling preparation 6 Sheet alloy is compared, and the present invention needs not move through homogenization heat treatment, and preheating and rolling, has been simplified preparation section, has been saved simultaneously Original cast grain structure improves timber intensity.Hot investment casting plate strict control produced casting technique uses spy Some heat treatment, stretching and process for machining, it is ensured that the plate grain structure it is tiny it is uniform, without rolling texture, keep casting State grain structure, internal stress is extremely low, improves the intensity of cast sheet.In addition to this, by heat treatment process of the invention, very well Control grain structure in the alloy, amount of precipitation and position is precipitated in the size of precipitated phase, largely improves the casting The intensity of panel products.
Detailed description of the invention
Fig. 1 is preparation method flow chart of the present invention；
Fig. 2 is that 1 finished product 6061 of embodiment casts Quenching Sheet grain structure figure under 50 times of zoom microscopes；
Fig. 3 is that 2 finished product 6082 of embodiment casts Quenching Sheet grain structure figure under 50 times of zoom microscopes；
Fig. 4 is that 3 finished product 6013 of embodiment casts Quenching Sheet grain structure figure under 50 times of zoom microscopes；
Fig. 5 is that 4 finished product 6xxx of embodiment casts Quenching Sheet grain structure figure under 50 times of zoom microscopes；
Fig. 6 is comparison 1 finished product of case study on implementation, 6082 cast sheet grain structure figure under 50 times of zoom microscopes；
Fig. 7 is comparison 2 finished product of case study on implementation, 5083 cast sheet grain structure figure under 50 times of zoom microscopes；
Fig. 8 is comparison 3 finished product of case study on implementation, 6061 milled sheet grain structure figure under 50 times of zoom microscopes.
Specific embodiment
Combined with specific embodiments below, further details of elaboration is made to the present invention, but embodiments of the present invention are not It is confined to the range of embodiment expression.These embodiments are merely to illustrate the present invention, range and is not intended to limit the present invention.This Outside, after reading the contents of the present invention, those skilled in the art can various modifications may be made to the present invention, these equivalent variations are same Sample falls within the appended claims limited range of the present invention.
Embodiment 1
1. A1 in 6061 aluminium alloy of melting, ingredient such as table 1, after deaerated, filtering, hydrogen content 0.18ml/100gAl is carried out Semi-continuous casting casts out the slab ingot having a size of 450*1550*6000mm.
2. the spindle four sides single side railway carriage 5mm that will have been cast removes casting aliquation layer, cuts and rough mill face into 50*1530* 6000mm plate.
3. will rough mill the resulting plate in face carries out solution hardening, 10 DEG C/min of heating rate is warming up to 500 DEG C, heat preservation 5min, heat preservation terminate, quick high-pressure water quenching, and 65 DEG C/s of cooling velocity is cooled to room temperature.
4. a pair above-mentioned Quenching Sheet stretches, rate of extension 15mm/min, extensibility 1.5%.
5. timeliness, keeps the temperature 10h by 185 DEG C of aging temp.
6. being sawed into 50*1420*5000mm, 19*1420*5000mm, saw band speed 2100m/min, sawing speed are cut into Spend 30dm2/ mn, 260mm/min；Charging rate 70%, 45mm/min；Expect platform speed: 60mm/mmin.
7. finish-milling face mills panel at 15*1420*5000mm, platform charging rate 380mm/min is expected, mill face live spindle 150r/min。
Plate A2, grain structure such as Fig. 2 in performance such as table 2 after above-mentioned processing.
Embodiment 2
1. B1 in 6082 aluminium alloy of melting, ingredient such as table 1, after deaerated, filtering, hydrogen content 0.15ml/100gAl is carried out Semi-continuous casting casts out the slab ingot with a thickness of 650*2250*4500mm.
2. the spindle four sides single side railway carriage 15mm that will have been cast removes casting aliquation layer, cutting and milling face are at 100*2220* 4500mm。
3. the plate of cutting is carried out solution hardening, 50 DEG C/min of heating rate is warming up to 550 DEG C, keeps the temperature 150min, protects Temperature terminates, quick high-pressure water quenching, and 32 DEG C/s of cooling velocity is cooled to room temperature.
4. a pair above-mentioned Quenching Sheet stretches, rate of extension 6mm/min, extensibility 2.1%；
5. timeliness, keeps the temperature 15h by 172 DEG C of aging temp；
6. being sawed into 100*2100*3500mm, 23*2100*3500mm, saw band speed 2500m/min, sawing speed are cut into Spend 60dm2/ mn, 280mm/min；Charging rate 90%, 70mm/min；Expect platform speed: 85mm/mmin.
7. the face of milling mills panel at 20*2100*3500mm, platform charging rate 450mm/min is expected, mill face live spindle 280r/min。
8. plate B2, grain structure such as Fig. 3 in performance such as table 2 after above-mentioned processing.
Embodiment 3
1. C1 in 6013 aluminium alloy of melting, ingredient such as table 1, after deaerated, filtering, hydrogen content 0.10ml/100gAl is carried out Semi-continuous casting casts out the slab ingot with a thickness of 650*1850*4000mm.
2. the spindle four sides single side railway carriage 20mm that will have been cast removes casting aliquation layer, cutting and milling face are at 210*1830* 4000mm。
3. the plate of cutting is carried out solution hardening, 120 DEG C/min of heating rate is warming up to 580 DEG C, keeps the temperature 300min, Heat preservation terminates, quick high-pressure water quenching, and 10 DEG C/s of cooling velocity is cooled to room temperature.
4. a pair above-mentioned Quenching Sheet stretches, rate of extension 1.5mm/min, extensibility 3.0%；
5. timeliness, keeps the temperature 25h by 160 DEG C of aging temp；
6. being sawed into 210*1700*3000mm, 10*1700*3000mm, saw band speed 1600m/min, sawing speed are cut into Spend 45dm2/ mn, 270mm/min；Charging rate 80%, 45mm/min；Expect platform speed: 60mm/mmin.
7. finish-milling face mills panel at 7*1420*5000mm, platform charging rate 410mm/min is expected, mill face live spindle 200r/min。
Plate C2, grain structure such as Fig. 4 in performance such as table 2 after above-mentioned processing.
Embodiment 4
1. D1 in melting 6xxx aluminium alloy, ingredient such as table 1, after deaerated, filtering, hydrogen content 0.08ml/100gAl is carried out Semi-continuous casting casts out the slab ingot with a thickness of 650*1850*4000mm.
2. the spindle four sides single side railway carriage 20mm that will have been cast removes casting aliquation layer, cutting and milling face are at 25*1830* 4000mm。
3. the plate of cutting is carried out solution hardening, 120 DEG C/min of heating rate is warming up to 580 DEG C, keeps the temperature 300min, Heat preservation terminates, quick high-pressure water quenching, and 100 DEG C/s of cooling velocity is cooled to room temperature.
4. a pair above-mentioned Quenching Sheet stretches, rate of extension 1.5mm/min, extensibility 3.0%；
5. timeliness, keeps the temperature 25h by 160 DEG C of aging temp；
6. being sawed into 25*1700*3000mm, 11*1700*3000mm, saw band speed 1600m/min, sawing speed are cut into Spend 45dm2/mn, 270mm/min；Charging rate 80%, 45mm/min；Expect platform speed: 60mm/mmin.
7. finish-milling face mills panel at 7*1420*5000mm, platform charging rate 410mm/min is expected, mill face live spindle 200r/min。
Plate D2, grain structure such as Fig. 5 in performance such as table 2 after above-mentioned processing.
Compare case study on implementation 1
1. using 6082 aluminium alloy flat blooms of 2 melting and castings of embodiment, E1 in ingredient such as table 1, with a thickness of 650*2250* The slab ingot of 4500mm.
2. the spindle cast is heat-treated according to following heat treatment process:
1), heating rate: 40~45 DEG C/h；
2), holding temperature: 400 DEG C ± 5 of material temperature, soaking time: 30h；
3), the type of cooling: after soaking time, heating system is closed, stops heating, passes through circulating fan, cooling wind Machine controls cooling velocity, and rate of temperature fall: 18~22 DEG C/h, spindle is cooled to 200 DEG C, in natural cooling of coming out of the stove.
3. being processed into 6082 precisions by above-mentioned technological invention scheme sawing, scalping process using 6082 spindles being heat-treated Cast sheet, specification 20*2200*3600mm, saw band speed 2500m/min, saw cutting speed 60dm2/ mn, 280mm/min；Charging speed Spend 80%, 70mm/min；Expect platform speed: 85mm/mmin.
4. the face of milling mills panel at 20*2200*3600mm, platform charging rate 420mm/min is expected, mill face live spindle 250r/min。
Plate E2, grain structure such as Fig. 6 in performance such as table 2 after above-mentioned processing.
Compare case study on implementation 2
F1 in 5083 aluminium alloy of melting, ingredient such as table 1, it is deaerated, filtering after, carry out semi-continuous casting, cast out with a thickness of The slab ingot of 520*1620*6000mm.
The spindle cast is heat-treated according to following heat treatment process:
1), heating rate: 40~45 DEG C/h；
2), holding temperature: 400 DEG C ± 5 of material temperature, soaking time: 30h；
3), the type of cooling: after soaking time, heating system is closed, stops heating, passes through circulating fan, cooling wind Machine controls cooling velocity, and rate of temperature fall: 18~22 DEG C/h, spindle is cooled to 200 DEG C, in natural cooling of coming out of the stove.
5083 accurate castings are processed by above-mentioned technological invention scheme sawing, scalping process using 5083 spindles being heat-treated Make plate, specification 15*1580*5400mm.
Plate F2, grain structure such as Fig. 7 in performance such as table 2 after above-mentioned processing.
Compare case study on implementation 3
1. using 6061 aluminium alloy flat blooms of 1 melting and casting of embodiment, G1 in ingredient such as table 1, with a thickness of 520*1620* 5000mm。
2. the spindle cast is carried out soaking, 540~560 DEG C of soaking temperature, 12h is kept the temperature, heat preservation terminates to come out of the stove air-cooled.
3. by ingot casting crop end and rough mill face to 500*1600*4200mm,
4. 480 DEG C~500 DEG C of gained ingot casting preheating, keeping the temperature 2h, 15*1500* is cut and be trimmed to hot rolling to 15mm 7000mm。
5. pair gained rolled plate solution hardening, 80~120 DEG C/min of heating rate are warming up to 560~570 DEG C, heat preservation 5min, heat preservation terminate, and quick high-pressure water quenching is cooled to room temperature.
6. a pair above-mentioned Quenching Sheet stretches, rate of extension 15mm/min, extensibility 1.5%.
7. timeliness, keeps the temperature 15h, is then sawed into 15*1400*6000mm by 175 DEG C of timeliness
Plate G2, grain structure such as Fig. 8 in performance such as table 2 after above-mentioned processing.
Table 1 tests aluminum alloy chemical composition
2 mechanical property of table

Claims (9)

1. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheets, which is characterized in that the described method comprises the following steps:
1), melting and casting aluminium alloy cast ingot, chemical component mass percentage in the aluminium alloy cast ingot are as follows:
Si 0.4~1.3, Fe≤0.7, Cu≤1.1, Mn≤1.0, Mg 0.4~1.2, Cr≤0.35, Zn≤0.25, Ti≤ 0.15, its surplus is made of Al and inevitable impurity；
2) aluminium alloy cast ingot that step 1) obtains, is obtained into aluminium alloy finished product by cutting, solution hardening, stretching, timeliness.
2. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 1, which is characterized in that institute During stating melting and casting aluminium alloy cast ingot, including degasification, filtration step, gained aluminum alloy melt hydrogen are carried out to aluminium alloy melt Content is less than or equal to 0.18ml/100gAl.
3. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 1 or 2, which is characterized in that The resulting aluminium alloy ingots thickness≤210mm of dicing process.
4. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 1 or 2, which is characterized in that The solution hardening temperature is 500~580 DEG C, and soaking time is 5~300min.
5. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 4, which is characterized in that institute Stating solution hardening heating rate is 10~120 DEG C/min.
6. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 5, which is characterized in that institute Stating solution hardening is water quenching, and cooling rate is 10~100 DEG C/s.
7. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 1 or 2, which is characterized in that The extensibility is 1.5~3.0%.
8. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 7, which is characterized in that institute Stating tensile speed is 1.5~15mm/s.
9. a kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet according to claim 1 or 2, which is characterized in that The aging temp is 160~185 DEG C, and soaking time is 10~25h.
CN201811560749.6A 2018-12-20 2018-12-20 A kind of preparation method of 6 line aluminium alloy hot investment casting Quenching Sheet Pending CN109576617A (en)

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CN110343981A (en) * 2019-07-04 2019-10-18 怀化市科捷铝业科技有限公司 A kind of production method of 6061 super flat aluminium alloy plate
CN110699576A (en) * 2019-10-24 2020-01-17 广西南南铝加工有限公司 Preparation process of high-strength aluminum alloy precision casting plate
CN113684430A (en) * 2021-08-18 2021-11-23 上海交通大学 Heating and cooling circulation heat treatment method near primary precipitation phase initial melting temperature of cast alloy
CN114134374A (en) * 2021-10-28 2022-03-04 佛山市三水凤铝铝业有限公司 6-series aluminum alloy and preparation method thereof

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CN108893661A (en) * 2018-07-19 2018-11-27 中铝萨帕特种铝材（重庆）有限公司 A kind of high-speed EMUs 6 line aluminium alloy profile of wide cut thin-walled and preparation method thereof

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CN110343981A (en) * 2019-07-04 2019-10-18 怀化市科捷铝业科技有限公司 A kind of production method of 6061 super flat aluminium alloy plate
CN110699576A (en) * 2019-10-24 2020-01-17 广西南南铝加工有限公司 Preparation process of high-strength aluminum alloy precision casting plate
CN110699576B (en) * 2019-10-24 2021-04-13 广西南南铝加工有限公司 Preparation process of high-strength aluminum alloy precision casting plate
CN113684430A (en) * 2021-08-18 2021-11-23 上海交通大学 Heating and cooling circulation heat treatment method near primary precipitation phase initial melting temperature of cast alloy
CN113684430B (en) * 2021-08-18 2022-08-09 上海交通大学 Heating and cooling circulation heat treatment method near primary precipitation phase initial melting temperature of cast alloy
CN114134374A (en) * 2021-10-28 2022-03-04 佛山市三水凤铝铝业有限公司 6-series aluminum alloy and preparation method thereof

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Application publication date: 20190405