CN105950923A - Manufacturing method for flat Sc-containing high-Mg aluminum alloy cast ingot - Google Patents
Manufacturing method for flat Sc-containing high-Mg aluminum alloy cast ingot Download PDFInfo
- Publication number
- CN105950923A CN105950923A CN201610560689.2A CN201610560689A CN105950923A CN 105950923 A CN105950923 A CN 105950923A CN 201610560689 A CN201610560689 A CN 201610560689A CN 105950923 A CN105950923 A CN 105950923A
- Authority
- CN
- China
- Prior art keywords
- melt
- intermediate alloy
- alloy
- aluminium alloy
- continuous casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
-
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to a manufacturing method for a flat Sc-containing high-Mg aluminum alloy cast ingot and aims to solve the problem that a conventional Al-Mg-Mn alloy is easily softened at a high temperature and has low strength. The method comprises the following steps: 1, weighing of melting raw materials; 2, melting; 3, refining; and 4, casting. According to the method, a reasonable melting and casting technological process is selected, so that the components of a molten aluminum alloy are more uniform and stable; the strength of the alloy is improved, and the detect that the conventional high-Mg aluminum alloy is easily softened when heated is overcome; the mechanical properties of the alloy are effectively improved; and through reasonable control over the three major parameters of speed, temperature and water flow in a casting process, the large-sized flat Sc-containing high-Mg aluminum alloy cast ingot, which is free of tension fracture and has acceptable internal quality, is produced, and the large-sized flat Sc-containing high-Mg aluminum alloy cast ingot can be widely applied to the fields of national defense, aviation and aerospace, ship and the like.
Description
Technical field
The present invention relates to the manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc.
Background technology
Al-Mg-Mn alloy be heat treatment can not enhanced type alloy, there is excellent corrosion resistance, high specific strength, preferably
Plasticity and solderability, thermal conductance and conductivity are outstanding simultaneously.Al-Mg-Mn alloy be mainly used to make container, parts,
Water pipe, decorative article etc..Al-Mg-Mn alloy is most widely used in aluminum Welding Structure, Aero-Space, vehicle manufacture, electrician
The fields such as electronics receive favor.
But the shortcomings such as Al-Mg-Mn alloy still suffers under high temperature easily softening and intensity is the highest, therefore exploitation is a kind of at high temperature
Under have high intensity and be difficult to soften Al-Mg-Mn alloy significant.
Summary of the invention
The problem that the present invention seeks to solve easily to soften under existing Al-Mg-Mn alloy high-temp and intensity is the highest, and provide
A kind of manufacture method of the high Mg cast aluminium alloy flat ingot containing Sc.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc of the present invention sequentially includes the following steps:
One, weigh melting raw material: 1. by the mass percent of each element: Mn be 0.15%～0.4%, Mg be 5.8%～
6.4%, Sc be 0.2%～0.3%, Zr be 0.1%～0.18%, Ti be 0.02%～0.04% and the Al of surplus to weigh aluminum
Ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy；2. according to Al-Be
The quality of intermediate alloy is (1～3) with the ratio of the gross mass of the melting raw material weighed: 9 × 103Weigh Al-Be intermediate alloy；
Two, melting: successively raw material is loaded resistance according to aluminium ingot, Al-Zr intermediate alloy, the order of Al-Mn intermediate alloy
Melt in reverberatory furnace stove, after melt temperature reaches 800 DEG C～810 DEG C, be 800 DEG C～810 DEG C of constant temperatures in temperature
Under be initially charged Al-Sc intermediate alloy, be subsequently adding magnesium ingot, Al-Be intermediate alloy, Al-Ti intermediate alloy, every 20min stirring one
Secondary, stirring 4 times altogether, stirring is to mix homogeneously, and in whipping process, melt temperature is maintained at 800 DEG C～810 DEG C, completes melting, so
After under conditions of temperature be not less than 760 DEG C, at melt depth half, dip sample carry out chemical composition detection, adjust chemistry
Composition meets the mass percent in step one to each element, then use Ar-Cl2Mixed gas refine melt 8min～
12min, obtains aluminium alloy melt；
Three, refine: aluminium alloy melt step 2 obtained imports in standing furnace, is 730 DEG C～750 DEG C at melt temperature
Time, in standing furnace, it is passed through Ar-Cl2Mixed gas refine 10min～20min, then stands 20min～40min, is cast
Melt；
Four, casting: casting melt step 3 obtained uses semi-continuous casting method outside stove under conditions of online degasification
Cast, obtain the high Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 730 DEG C～750 DEG C, semicontinuous
Casting speed is 40mm/min～45mm/min, and semi-continuous casting cooling water pressure is 0.08MPa～0.15MPa, and lubricating system is
Self-lubricate.
Aluminium ingot described in step one is Fe ＜ 0.003, high-purity aluminium ingot of Si ＜ 0.003.
The specification of the high Mg cast aluminium alloy flat ingot containing Sc that the present invention obtains is 420mm × 1620mm.
Impurity content in a kind of high Mg cast aluminium alloy flat ingot containing Sc of the present invention is: Si ＜ 0.1%, Fe ＜ 0.2%,
Remaining single impurity≤0.05%, all dirt is in the range of≤0.10%, and the impurity in the range of this is to containing Sc height Mg aluminium alloy
Rectangle ingot casting and metallurgical quality do not affect.
Beneficial effects of the present invention:
1, the present invention selects rational founding flow process, by resistance reverberatory furnace, the different works of two stoves of standing furnace
With, enable aluminum alloy to bath composition more uniform and stable；
2, by adding Sc element, improve alloy strength, overcome high-magnesium aluminum alloy and be heated the shortcoming easily softened；
3, by adding Zr element, refined the grain structure of alloy, and the mechanical property of alloy can be effectively improved；
4, by adding Be element, form the oxide-film of densification at bath surface, reduce the scaling loss of Mg element；
5, by using argon-chlorine mixture gas refine, melt hydrogen content and alkali metal are reduced；
6, by using online degasification outside stove, the gas in melt and field trash are reduced, it is to avoid inside ingot tissue defects
Generation；
7, by casting process medium velocity, temperature and the conservative control of the big parameter of discharge three, produced without drawing crack,
Big specification height Mg cast aluminium alloy flat ingot Han Sc that internal soundness is qualified, can be widely applied to the necks such as national defence, space flight and aviation and warship oceangoing ship
Territory.
Accompanying drawing explanation
Fig. 1 is the photo of the high Mg cast aluminium alloy flat ingot containing Sc of test one preparation；
Fig. 2 is test one and test two sample position figures；Wherein label 1～7 represents test piece number (Test pc No.).
Detailed description of the invention
Detailed description of the invention one: the manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc of present embodiment is by following
Step is carried out:
One, weigh melting raw material: 1. by the mass percent of each element: Mn be 0.15%～0.4%, Mg be 5.8%～
6.4%, Sc be 0.2%～0.3%, Zr be 0.1%～0.18%, Ti be 0.02%～0.04% and the Al of surplus to weigh aluminum
Ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy；2. according to Al-Be
The quality of intermediate alloy is (1～3) with the ratio of the gross mass of the melting raw material weighed: 9 × 103Weigh Al-Be intermediate alloy；
Two, melting: successively raw material is loaded resistance according to aluminium ingot, Al-Zr intermediate alloy, the order of Al-Mn intermediate alloy
Melt in reverberatory furnace stove, after melt temperature reaches 800 DEG C～810 DEG C, be 800 DEG C～810 DEG C of constant temperatures in temperature
Under be initially charged Al-Sc intermediate alloy, be subsequently adding magnesium ingot, Al-Be intermediate alloy, Al-Ti intermediate alloy, every 20min stirring one
Secondary, stirring 4 times altogether, stirring is to mix homogeneously, and in whipping process, melt temperature is maintained at 800 DEG C～810 DEG C, completes melting, so
After under conditions of temperature be not less than 760 DEG C, at melt depth half, dip sample carry out chemical composition detection, adjust chemistry
Composition meets the mass percent in step one to each element, then use Ar-Cl2Mixed gas refine melt 8min～
12min, obtains aluminium alloy melt；
Three, refine: aluminium alloy melt step 2 obtained imports in standing furnace, is 730 DEG C～750 DEG C at melt temperature
Time, in standing furnace, it is passed through Ar-Cl2Mixed gas refine 10min～20min, then stands 20min～40min, is cast
Melt；
Four, casting: casting melt step 3 obtained uses semi-continuous casting method outside stove under conditions of online degasification
Cast, obtain the high Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 730 DEG C～750 DEG C, semicontinuous
Casting speed is 40mm/min～45mm/min, and semi-continuous casting cooling water pressure is 0.08MPa～0.15MPa, and lubricating system is
Self-lubricate.
In present embodiment step one, the mass percent of Be element is 0.0005%～0.05%.
Aluminium ingot described in present embodiment step one is Fe ＜ 0.003, high-purity aluminium ingot of Si ＜ 0.003.
The specification of the high Mg cast aluminium alloy flat ingot containing Sc that present embodiment obtains is 420mm × 1620mm.
Impurity content in a kind of high Mg cast aluminium alloy flat ingot containing Sc of present embodiment is: Si ＜ 0.1%, Fe ＜
0.2%, remaining single impurity≤0.05%, all dirt is in the range of≤0.10%, and the impurity in the range of this is to containing Sc height Mg
Cast aluminium alloy flat ingot casting and metallurgical quality do not affect.
The beneficial effect of present embodiment:
1, present embodiment selects rational founding flow process, by resistance reverberatory furnace, two stoves of standing furnace not
Same-action, enables aluminum alloy to bath composition more uniform and stable；
2, by adding Sc element, improve alloy strength, overcome high-magnesium aluminum alloy and be heated the shortcoming easily softened；
3, by adding Zr element, refined the grain structure of alloy, and the mechanical property of alloy can be effectively improved；
4, by adding Be element, form the oxide-film of densification at bath surface, reduce the scaling loss of Mg element；
5, by using argon-chlorine mixture gas refine, melt hydrogen content and alkali metal are reduced；
6, by using online degasification outside stove, the gas in melt and field trash are reduced, it is to avoid inside ingot tissue defects
Generation；
7, by casting process medium velocity, temperature and the conservative control of the big parameter of discharge three, produced without drawing crack,
Big specification height Mg cast aluminium alloy flat ingot Han Sc that internal soundness is qualified, can be widely applied to the necks such as national defence, space flight and aviation and warship oceangoing ship
Territory.
Detailed description of the invention two: present embodiment is unlike detailed description of the invention one: by each element in step one
Mass percent: Mn is 0.3%, Mg is 6.2%, Sc is 0.22%～0.26%, Zr is 0.14%, Ti is 0.03% and remaining
The Al of amount weighs aluminium ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy.
Other steps and parameter are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment is unlike detailed description of the invention one or two: by each unit in step one
The mass percent of element: Mn is 0.3%, Mg is 6.25%, Sc is 0.25%, Zr is 0.14%, Ti is 0.02% and surplus
Al weigh aluminium ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy.Its
His step and parameter are identical with detailed description of the invention one or two.
Detailed description of the invention four: present embodiment is unlike one of detailed description of the invention one to three: press in step one
It is 2:9 × 10 according to the quality of Al-Be intermediate alloy with the ratio of the gross mass of the melting raw material weighed3Weigh Al-Be intermediate alloy.
Other steps and parameter are identical with one of detailed description of the invention one to three.
Detailed description of the invention five: present embodiment is unlike one of detailed description of the invention one to four: in step 2 when
After melt temperature reaches 800 DEG C～805 DEG C, under temperature is 800 DEG C～805 DEG C of constant temperatures, it is initially charged Al-Sc intermediate alloy.
Other steps and parameter are identical with one of detailed description of the invention one to four.
Detailed description of the invention six: present embodiment is unlike one of detailed description of the invention one to five: in step 2 when
After melt temperature reaches 803 DEG C, under temperature is 803 DEG C of constant temperatures, it is initially charged Al-Sc intermediate alloy.Other steps and parameter
Identical with one of detailed description of the invention one to five.
Detailed description of the invention seven: present embodiment is unlike one of detailed description of the invention one to six: will in step 3
The aluminium alloy melt that step 2 obtains imports in standing furnace, when melt temperature is 740 DEG C～750 DEG C, is passed through in standing furnace
Ar-Cl2Mixed gas refine 15min, then stands 30min, obtains casting melt.Other steps and parameter and specific embodiment party
One of formula one to six is identical.
Detailed description of the invention eight: present embodiment is unlike one of detailed description of the invention one to seven: will in step 3
The aluminium alloy melt that step 2 obtains imports in standing furnace, when melt temperature is 745 DEG C, is passed through Ar-Cl in standing furnace2Mixed
Close gas refinement 15min, then stand 30min, obtain casting melt.Other steps and parameter and detailed description of the invention one to seven
One of identical.
Detailed description of the invention nine: present embodiment is unlike one of detailed description of the invention one to eight: will in step 4
The casting melt that step 3 obtains uses semi-continuous casting method to cast outside stove under conditions of online degasification, obtain containing Sc's
High Mg cast aluminium alloy flat ingot；Described semi-continuous casting temperature is 740 DEG C, and semi-continuous casting speed is 40mm/min～45mm/
Min, semi-continuous casting cooling water pressure is 0.08MPa～0.15MPa, and lubricating system is self-lubricate.Other steps and parameter with
One of detailed description of the invention one to eight is identical.
Detailed description of the invention ten: present embodiment is unlike one of detailed description of the invention one to nine: will in step 4
The casting melt that step 3 obtains uses semi-continuous casting method to cast outside stove under conditions of online degasification, obtain containing Sc's
High Mg cast aluminium alloy flat ingot；Described semi-continuous casting temperature is 740 DEG C, and semi-continuous casting speed is 40mm/min～45mm/
Min, semi-continuous casting cooling water pressure is 0.11MPa, and lubricating system is self-lubricate.Other steps and parameter and specific embodiment party
One of formula one to nine is identical.
By following verification experimental verification beneficial effects of the present invention:
Test one: the manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc of this test sequentially includes the following steps:
One, weigh melting raw material: 1. by the mass percent of each element: Mn be 0.3%, Mg be 6.2%, Sc be
0.25%, Zr be 0.14%, Ti be 0.03% and the Al of surplus weigh aluminium ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy,
Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy；2. according to quality and the melting raw material weighed of Al-Be intermediate alloy
The ratio of gross mass is 2:9 × 103Weigh Al-Be intermediate alloy；
Two, melting: successively raw material is loaded resistance according to aluminium ingot, Al-Zr intermediate alloy, the order of Al-Mn intermediate alloy
Melt in reverberatory furnace stove, after melt temperature reaches 803 DEG C, be initially charged in Al-Sc under temperature is 803 DEG C of constant temperatures
Between alloy, be subsequently adding magnesium ingot, Al-Be intermediate alloy, Al-Ti intermediate alloy, every 20min stirs once, and stirring 4 times, stir altogether
Mixing to mix homogeneously, in whipping process, melt temperature is maintained at 803 DEG C, completes melting, is then not less than the bar of 760 DEG C in temperature
At melt depth half, dip sample under part carry out chemical composition detection, adjust chemical composition and meet in step one to each element
Mass percent till, then use Ar-Cl2Mixed gas refine melt 10min, obtains aluminium alloy melt；
Three, refine: aluminium alloy melt step 2 obtained imports in standing furnace, when melt temperature is 740 DEG C, Xiang Jing
Put and stove is passed through Ar-Cl2Mixed gas refine 15min, then stands 30min, obtains casting melt；
Four, casting: casting melt step 3 obtained uses semi-continuous casting method outside stove under conditions of online degasification
Cast, obtain the high Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 740 DEG C, semi-continuous casting speed
Degree is 42mm/min, and semi-continuous casting cooling water pressure is 0.11MPa, and lubricating system is self-lubricate.
Aluminium ingot described in this test procedure one is Fe ＜ 0.003, high-purity aluminium ingot of Si ＜ 0.003.
The specification of the high Mg cast aluminium alloy flat ingot containing Sc that this test obtains is 420mm × 1620mm.
The photo of the high Mg cast aluminium alloy flat ingot containing Sc of this test preparation is as shown in Figure 1.
(1) the high Mg cast aluminium alloy flat ingot containing Sc of test one preparation is carried out macrostructure inspection and mechanical property is surveyed
Examination, after being cut away the bottom of the high Mg cast aluminium alloy flat ingot containing Sc of test one preparation, cuts 20mm thickness test piece, takes test piece width
The half in direction carries out macrostructure inspection and Mechanics Performance Testing etc. and analyzes ingot casting.The sample position of sample to be detected is such as
Shown in Fig. 2.
No. 7 samples are carried out macrostructure inspection, does not finds the defects such as slag inclusion, pore, shrinkage cavity and porosity.
1～No. 6 sample is carried out Mechanics Performance Testing, the results are shown in Table 1.
Table 1 mechanical experimental results
Contrast test: the high Mg cast aluminium alloy flat ingot without Sc is carried out except Mechanics Performance Testing, except Sc element, its
His constituent content is identical with ingot casting in test one, after cutting away bottom, cuts 20mm thickness test piece, takes the half pair of test piece width
Ingot casting carries out Mechanics Performance Testing etc. and analyzes.The sample position of sample to be detected is as shown in Figure 2.
1～No. 6 sample is carried out Mechanics Performance Testing, the results are shown in Table 2.
Table 2 mechanical experimental results
Test two: the manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc of this test sequentially includes the following steps:
One, weigh melting raw material: 1. by the mass percent of each element: Mn be 0.3%, Mg be 6.25%, Sc be
0.25%, Zr be 0.14%, Ti be 0.02% and the Al of surplus weigh aluminium ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy,
Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy；2. according to quality and the melting raw material weighed of Al-Be intermediate alloy
The ratio of gross mass is 2:9 × 103Weigh Al-Be intermediate alloy；
Two, melting: successively raw material is loaded resistance according to aluminium ingot, Al-Zr intermediate alloy, the order of Al-Mn intermediate alloy
Melt in reverberatory furnace stove, after melt temperature reaches 805 DEG C, be initially charged in Al-Sc under temperature is 805 DEG C of constant temperatures
Between alloy, be subsequently adding magnesium ingot, Al-Be intermediate alloy, Al-Ti intermediate alloy, every 20min stirs once, and stirring 4 times, stir altogether
Mixing to mix homogeneously, in whipping process, melt temperature is maintained at 805 DEG C, completes melting, is then not less than the bar of 760 DEG C in temperature
At melt depth half, dip sample under part carry out chemical composition detection, adjust chemical composition and meet in step one to each element
Mass percent till, then use Ar-Cl2Mixed gas refine melt 10min, obtains aluminium alloy melt；
Three, refine: aluminium alloy melt step 2 obtained imports in standing furnace, when melt temperature is 740 DEG C, Xiang Jing
Put and stove is passed through Ar-Cl2Mixed gas refine 15min, then stands 30min, obtains casting melt；
Four, casting: casting melt step 3 obtained uses semi-continuous casting method outside stove under conditions of online degasification
Cast, obtain the high Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 740 DEG C, semi-continuous casting speed
Degree is 42mm/min, and semi-continuous casting cooling water pressure is 0.11MPa, and lubricating system is self-lubricate.
Aluminium ingot described in this test procedure one is Fe ＜ 0.003, high-purity aluminium ingot of Si ＜ 0.003.
The specification of the high Mg cast aluminium alloy flat ingot containing Sc that this test obtains is 420mm × 1620mm.
Claims (10)
1. the manufacture method of the high Mg cast aluminium alloy flat ingot containing Sc, it is characterised in that the method sequentially includes the following steps:
One, weigh melting raw material: 1. by the mass percent of each element: Mn be 0.15%～0.4%, Mg be 5.8%～
6.4%, Sc be 0.2%～0.3%, Zr be 0.1%～0.18%, Ti be 0.02%～0.04% and the Al of surplus to weigh aluminum
Ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and Al-Ti intermediate alloy；2. according to Al-Be
The quality of intermediate alloy is (1～3) with the ratio of the gross mass of the melting raw material weighed: 9 × 103Weigh Al-Be intermediate alloy；
Two, melting: successively raw material is loaded resistance reflection according to aluminium ingot, Al-Zr intermediate alloy, the order of Al-Mn intermediate alloy
Melt in stove stove, after melt temperature reaches 800 DEG C～810 DEG C, under temperature is 800 DEG C～810 DEG C of constant temperatures first
Adding Al-Sc intermediate alloy, be subsequently adding magnesium ingot, Al-Be intermediate alloy, Al-Ti intermediate alloy, every 20min stirs once, altogether
Stirring 4 times, stirring is to mix homogeneously, and in whipping process, melt temperature is maintained at 800 DEG C～810 DEG C, completes melting, then in temperature
Degree dips sample at melt depth half and carries out chemical composition detection under conditions of being not less than 760 DEG C, adjust chemical composition extremely
Till each element meets the mass percent in step one, then use Ar-Cl2Mixed gas refine melt 8min～12min,
Obtain aluminium alloy melt；
Three, refine: aluminium alloy melt step 2 obtained imports in standing furnace, when melt temperature is 730 DEG C～750 DEG C,
Ar-Cl it is passed through in standing furnace2Mixed gas refine 10min～20min, then stands 20min～40min, obtains casting molten
Body；
Four, casting: casting melt step 3 obtained uses semi-continuous casting method to carry out outside stove under conditions of online degasification
Casting, obtains the high Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 730 DEG C～750 DEG C, semi-continuous casting
Speed is 40mm/min～45mm/min, and semi-continuous casting cooling water pressure is 0.08MPa～0.15MPa, and lubricating system is automatic
Lubrication.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
In one by the mass percent of each element: Mn be 0.3%, Mg be 6.2%, Sc be 0.22%～0.26%, Zr be 0.14%, Ti
Be 0.03% and the Al of surplus weigh aluminium ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and
Al-Ti intermediate alloy.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
In one by the mass percent of each element: Mn be 0.3%, Mg be 6.25%, Sc be 0.25%, Zr be 0.14%, Ti be
0.02% and the Al of surplus weigh aluminium ingot, Al-Zr intermediate alloy, Al-Mn intermediate alloy, Al-Sc intermediate alloy, magnesium ingot and
Al-Ti intermediate alloy.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
It is 2:9 × 10 according to the quality of Al-Be intermediate alloy with the ratio of the gross mass of the melting raw material weighed in one3Weigh in Al-Be
Between alloy.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
In two after melt temperature reaches 800 DEG C～805 DEG C, it is initially charged in Al-Sc under temperature is 800 DEG C～805 DEG C of constant temperatures
Between alloy.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
In two after melt temperature reaches 803 DEG C, under temperature is 803 DEG C of constant temperatures, it is initially charged Al-Sc intermediate alloy.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
Aluminium alloy melt step 2 obtained in three imports in standing furnace, when melt temperature is 740 DEG C～750 DEG C, to standing furnace
In be passed through Ar-Cl2Mixed gas refine 15min, then stands 30min, obtains casting melt.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
Aluminium alloy melt step 2 obtained in three imports in standing furnace, when melt temperature is 745 DEG C, is passed through in standing furnace
Ar-Cl2Mixed gas refine 15min, then stands 30min, obtains casting melt.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
Casting melt step 3 obtained in four uses semi-continuous casting method to cast outside stove under conditions of online degasification, obtain
High Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 740 DEG C, semi-continuous casting speed be 40mm/min～
45mm/min, semi-continuous casting cooling water pressure is 0.08MPa～0.15MPa, and lubricating system is self-lubricate.
The manufacture method of a kind of high Mg cast aluminium alloy flat ingot containing Sc the most according to claim 1, it is characterised in that step
Casting melt step 3 obtained in four uses semi-continuous casting method to cast outside stove under conditions of online degasification, obtain
High Mg cast aluminium alloy flat ingot containing Sc；Described semi-continuous casting temperature is 740 DEG C, semi-continuous casting speed be 40mm/min～
45mm/min, semi-continuous casting cooling water pressure is 0.11MPa, and lubricating system is self-lubricate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610560689.2A CN105950923A (en) | 2016-07-15 | 2016-07-15 | Manufacturing method for flat Sc-containing high-Mg aluminum alloy cast ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610560689.2A CN105950923A (en) | 2016-07-15 | 2016-07-15 | Manufacturing method for flat Sc-containing high-Mg aluminum alloy cast ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105950923A true CN105950923A (en) | 2016-09-21 |
Family
ID=56901448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610560689.2A Pending CN105950923A (en) | 2016-07-15 | 2016-07-15 | Manufacturing method for flat Sc-containing high-Mg aluminum alloy cast ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105950923A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555067A (en) * | 2016-12-07 | 2017-04-05 | 河北工业大学 | A kind of composite refining Modification Manners for lifting Mechanical Properties of Aluminum Alloys |
| CN107794419A (en) * | 2017-06-13 | 2018-03-13 | 湖南东方钪业股份有限公司 | A kind of aluminium alloy polynary intermediate alloy and preparation method thereof |
| CN111378878A (en) * | 2018-12-29 | 2020-07-07 | 嘉丰工业科技（惠州）有限公司 | High-ductility non-heat-treatment die-casting aluminum alloy and preparation method thereof |
| CN114000000A (en) * | 2021-11-03 | 2022-02-01 | 西南铝业（集团）有限责任公司 | Casting method of aluminum-magnesium-scandium alloy |
| CN114318095A (en) * | 2021-12-24 | 2022-04-12 | 东北轻合金有限责任公司 | Magnesium alloy flat ingot and preparation method thereof |
| CN114318077A (en) * | 2021-12-28 | 2022-04-12 | 东北轻合金有限责任公司 | Manufacturing method of Al-Si-Mn-Zn aluminum alloy flat ingot |
| CN115369292A (en) * | 2022-09-01 | 2022-11-22 | 太原理工大学 | High-strength high-plasticity cast aluminum-magnesium-manganese-scandium-zirconium alloy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437227A (en) * | 2002-02-04 | 2003-08-20 | 旺宏电子股份有限公司 | Mesolayer window etching process in the identical etching chamber |
| JP2007021533A (en) * | 2005-07-15 | 2007-02-01 | Kobe Steel Ltd | Method for producing aluminum alloy plate for formation, and apparatus for continuously casting aluminum alloy for formation |
| CN104694801A (en) * | 2015-03-20 | 2015-06-10 | 东北轻合金有限责任公司 | Al-Mg-Sc-Zr aluminum alloy plate and manufacturing method thereof |
| CN105525162A (en) * | 2014-09-29 | 2016-04-27 | 刘小会 | Preparation process for improving Al-5.2 Mg-0.3 Mn alloy by adding Zr and rare earth Sc element |
-
2016
- 2016-07-15 CN CN201610560689.2A patent/CN105950923A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437227A (en) * | 2002-02-04 | 2003-08-20 | 旺宏电子股份有限公司 | Mesolayer window etching process in the identical etching chamber |
| JP2007021533A (en) * | 2005-07-15 | 2007-02-01 | Kobe Steel Ltd | Method for producing aluminum alloy plate for formation, and apparatus for continuously casting aluminum alloy for formation |
| CN105525162A (en) * | 2014-09-29 | 2016-04-27 | 刘小会 | Preparation process for improving Al-5.2 Mg-0.3 Mn alloy by adding Zr and rare earth Sc element |
| CN104694801A (en) * | 2015-03-20 | 2015-06-10 | 东北轻合金有限责任公司 | Al-Mg-Sc-Zr aluminum alloy plate and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谭劲峰: "《轻有色金属及其合金熔炼与铸造》", 30 April 2013, 冶金工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555067A (en) * | 2016-12-07 | 2017-04-05 | 河北工业大学 | A kind of composite refining Modification Manners for lifting Mechanical Properties of Aluminum Alloys |
| CN107794419A (en) * | 2017-06-13 | 2018-03-13 | 湖南东方钪业股份有限公司 | A kind of aluminium alloy polynary intermediate alloy and preparation method thereof |
| CN107794419B (en) * | 2017-06-13 | 2020-03-31 | 湖南东方钪业股份有限公司 | Multi-element intermediate alloy for aluminum alloy and preparation method thereof |
| CN111378878A (en) * | 2018-12-29 | 2020-07-07 | 嘉丰工业科技（惠州）有限公司 | High-ductility non-heat-treatment die-casting aluminum alloy and preparation method thereof |
| CN111378878B (en) * | 2018-12-29 | 2021-10-26 | 嘉丰工业科技（惠州）有限公司 | High-ductility non-heat-treatment die-casting aluminum alloy and preparation method thereof |
| CN114000000A (en) * | 2021-11-03 | 2022-02-01 | 西南铝业（集团）有限责任公司 | Casting method of aluminum-magnesium-scandium alloy |
| CN114318095A (en) * | 2021-12-24 | 2022-04-12 | 东北轻合金有限责任公司 | Magnesium alloy flat ingot and preparation method thereof |
| CN114318077A (en) * | 2021-12-28 | 2022-04-12 | 东北轻合金有限责任公司 | Manufacturing method of Al-Si-Mn-Zn aluminum alloy flat ingot |
| CN115369292A (en) * | 2022-09-01 | 2022-11-22 | 太原理工大学 | High-strength high-plasticity cast aluminum-magnesium-manganese-scandium-zirconium alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105950923A (en) | Manufacturing method for flat Sc-containing high-Mg aluminum alloy cast ingot | |
| Jiang et al. | Correlation of microstructure with mechanical properties and fracture behavior of A356-T6 aluminum alloy fabricated by expendable pattern shell casting with vacuum and low-pressure, gravity casting and lost foam casting | |
| Pozdniakov et al. | Development of Al-5Cu/B4C composites with low coefficient of thermal expansion for automotive application | |
| Dai et al. | Effects of rheo-squeeze casting parameters on microstructure and mechanical properties of AlCuMnTi alloy | |
| Lin et al. | Microstructure and mechanical properties of rheo-diecast hypereutectic Al–Si alloy with 2% Fe assisted with ultrasonic vibration process | |
| CN107034399A (en) | A kind of manufacture method of Al Cu Mg line aluminium alloy rectangle ingots | |
| CN102095627A (en) | Standard spectrum sample of cast aluminum alloy and preparation method thereof | |
| CN102033009B (en) | Preparation method of casting aluminum alloy spectrographic standard sample containing Cd | |
| CN104498784A (en) | Novel aluminum-titanium alloy and preparation process thereof | |
| CN107641741A (en) | A kind of high heat conduction aluminium alloy | |
| CN107828999A (en) | The heat treatment method and die-cast aluminum alloy material of a kind of pack alloy | |
| CN109022960A (en) | A kind of thermally conductive aluminium alloy and its preparation method and application | |
| CN106566959A (en) | Aluminum alloy material and preparation method thereof | |
| CN108866407A (en) | A kind of big specification rectangle ingot of aerospace aluminium alloy and its manufacturing method | |
| Tian et al. | Research on the mechanical properties and hot deformation behaviors of spray-deposited 7034 Al alloy processed by forward extrusion | |
| CN109022962A (en) | A kind of aviation alloyed aluminium rectangle ingot and its manufacturing method | |
| CN111060554B (en) | Rapid analysis method for determining content of supercooled hypoeutectic alloy phase | |
| Chankitmunkong et al. | Constitutive behavior of an AA4032 piston alloy with Cu and Er additions upon high-temperature compressive deformation | |
| CN102002616B (en) | Hydrogen-containing 7050 aluminum alloy standard sample and preparation method thereof | |
| Sha et al. | Variation of microstructure of RE-containing AlSi20Cu2Ni1RE0. 6 alloy with different cobalt contents | |
| Xie et al. | Effect of Rare Earth Ce on Casting Properties of Al-4.5 Cu Alloy | |
| CN108998690A (en) | A method of preparing SiCp/AZ91D composite material | |
| CN110961626B (en) | Method for screening crack-free formula components of 3D printed aluminum alloy | |
| Tash et al. | Thermal analysis, microstructure and performance of AA6063 aluminum alloy casting with Ag and Fe additions | |
| CN106868358A (en) | A kind of engine cylinder cover composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |
|
| WD01 | Invention patent application deemed withdrawn after publication |