CN110396615A - A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained - Google Patents
A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained Download PDFInfo
- Publication number
- CN110396615A CN110396615A CN201910771282.8A CN201910771282A CN110396615A CN 110396615 A CN110396615 A CN 110396615A CN 201910771282 A CN201910771282 A CN 201910771282A CN 110396615 A CN110396615 A CN 110396615A
- Authority
- CN
- China
- Prior art keywords
- alloy
- polynary
- melt
- alusil
- technique
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
This application involves a kind of polynary alloys alusil alloy classification fine degenerate technique and obtained, the present invention utilizes classification fine degenerate technique, in polynary alusil alloy melt stage, divide three phases, Al-4Zr intermediate alloy is added according to order, Al-10Sr intermediate alloy and Al-10RE intermediate alloy, the crystal grain of polynary alusil alloy is not only refined, also significantly improve Si phase, the precipitation form of Al2Cu phase and nascent richness Fe phase, brittle larger blocky nascent richness Fe phase transition is the smaller particle richness Fe phase of dispersion especially after classification fine degenerate, in the case where not increasing substance migration amount, while improving casting polynary alusil alloy intensity, its plasticity is also significantly improved simultaneously.
Description
Technical field
The application belongs to Aluminum alloy modification method and technology field, becomes more particularly, to a kind of polynary alusil alloy classification refinement
Matter technique and obtained alloy.
Background technique
A356 aluminium alloy is most widely used alloy in hypoeutectic Al-Si-Mg system alloy, has good fluidity, no heat
Tendency is split, linear shrinkage is small, and higher specific strength and preferable casting character are widely used in Aeronautics and Astronautics, automobile, building etc.
Industry.But in uninoculated A356 aluminium alloy, Si phase shows coarse gill shape, makes the matrix of alloy by serious
It isolates, and easily causes stress to concentrate at the tip of silicon phase and edges and corners, significantly reduce the strength of materials, plasticity, machinability.
Therefore, be improve A356 aluminium alloy mechanical performance, improve A356 aluminium alloy process industrial art performance, need to A356 aluminium alloy into
Row Metamorphism treatment.Since modification effect of the Al-10Sr intermediate alloy to eutectic silicon is much better than other metals and alloy, work at present
Al-10Sr intermediate alloy is generallyd use in industry, and Metamorphism treatment is carried out to A356 aluminium alloy, it is tiny through the Sr eutectic silicon particle that goes bad, it can
To significantly improve its process industrial art performance, the quality of A356 aluminium alloy is improved, but not due to Al-10Sr intermediate alloy tissue morphology
Together, in the case where the identical situation of Sr amount is added, visibly different influence, Al-10Sr are generated on A356 aluminium alloy fine degenerate effect
The second phase in intermediate alloy is mainly the (Al+ of the cluster distribution in a strip shape by the Al4Sr phase in en plaque distribution and on matrix
Al4Sr) eutectic phase composition after the Sr in A14Sr compound is only converted into the Sr of free state, can just play its fine degenerate work
With.Dispersed and tiny A14Sr phase is since specific surface area is larger, and surface can be higher, and solution rate is very fast, makes Sr atom easily therefrom
Low-surface-energy drops in separate out, and Sr is made to have good fine degenerate effect, and the A14Sr phase of coarse sheet is unevenly distributed
It is even, then it is not easy to make Sr atom therefrom separate out, fine degenerate effect is bad, that is, and in the Al-10Sr intermediate alloy being added
Two phase morphologies, size, distribution and surface state and energy generate direct influence to A356 aluminium alloy fine degenerate effect.Al-
For 10Sr intermediate alloy in melting preparation process, the difference of melt curing condition, which will result directly in, is formed by the second phase morphology
Difference carries out strong stirring, vibration to melt, nucleus can be promoted to be formed in advance from extraneous input energy, while taking certain
Technological measure increases degree of supercooling, increases the heat exchange of melt and mold, reduces the melt temperature in liquid cave, before being crushed crystallization
The skeleton on edge, appearance largely can be used as the one dendrite fragment of substance of heterogeneous nucleation, so that nucleation rate be made to greatly increase, melt is solidifying
Gu number of die after in unit volume also obviously increases therewith, is distributed on available Al-10Sr intermediate alloy more dispersed and tiny
Second phase particles, a certain amount of Al-10Sr intermediate alloy is added to after the A356 aluminium alloy of fine degenerate, due to Al-
10Sr intermediate alloy autologous tissue form has heredity, and tissue morphology, which will crystallize tissue to alusil alloy, hereditation, i.e.,
The organized hereditary effect of Al-10Sr intermediate alloy fine degenerate effect, this explanation, Al-10Sr intermediate alloy are a kind of with something lost
Pass the intermediate alloy of effect.
Chinese patent literature CN 106498245B discloses a kind of casting technique side that can improve A356 intensity of aluminum alloy
Method, by pure Mg alloy that at a temperature of 705~715 DEG C, addition was wrapped up with aluminium foil, compound RE and Al-Sr intermediate alloy, and
High-strength cast aluminum-silicon alloy is obtained by subzero treatment reinforcement process.
Summary of the invention
The technical problem to be solved by the present invention is the mechanical property of polynary alusil alloy is further increased for solution, thus
A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained is provided.
The technical solution adopted by the present invention to solve the technical problems is:
The present invention provides a kind of polynary alusil alloy classification fine degenerate technique, including following methods:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
S2: it in 740-760 DEG C of addition Al-4Zr intermediate alloy, is stirred evenly after the fusing of Al-4Zr intermediate alloy；
S3: being cooled to 720-740 DEG C, and Al-10Sr intermediate alloy is added, and stirs after the fusing of Al-10Sr intermediate alloy equal
It is even；
S4: after carrying out degasification to the melt that S3 is obtained, refine, take off Slag treatment, it is cooled to 710-730 DEG C, Al-10RE is added
Intermediate alloy stirs evenly after the fusing of Al-10RE intermediate alloy；
S5: it is cast to obtain polynary alusil alloy after the melt that S4 is obtained is skimmed, filtered.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique, obtains after mixed melting in S1 step
The chemical component of alloy are as follows: Si is 8~9%, Cu be 6~7%, Mn be 0.5~0.9%, Zn is 0.5~0.9%, Mg 0.2
~0.6%, Sn are 0.1~0.3%, Ni is 0.04~0.08%, Cr is 0.02~0.06%, V is 0.01~0.05%, Fe≤
0.4%, surplus is Al and inevitable impurity, and all elements are mass percent.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique, the addition of Zr in Al-4Zr intermediate alloy
Amount is the 0.06~0.1% of the gross mass of the alloy obtained after mixed melting in S1 step.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique, the addition of Sr in Al-10Sr intermediate alloy
Amount is the 0.02~0.05% of the gross mass of the alloy obtained after mixed melting in S1 step.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique, the addition of RE in Al-10RE intermediate alloy
Amount is the 0.3~0.5% of the gross mass of the alloy obtained after mixed melting in S1 step.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique, the reclaiming aluminium alloy in S1 step
For A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si, Al-20Cu, Al-10Mn, Al-5Ni,
Al-5Cr, Al-5V, pure Zn, pure Mg.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique,
In S1 step, first A356 aluminium alloy is melted at 770-790 DEG C；By the fusing of 20~30% mass fractions
A356 aluminium alloy is placed in reaction container bottom, by 40~60% mass fraction A356 aluminium alloys and Al-30Si, Al-20Cu, Al-
10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 20~30% are reloaded at the top of reaction vessel
Mass fraction A356 aluminium alloy；Reaction vessel is heated to 770-790 DEG C, stirring melt homogenizes melt element, then instead
Vessel temp is answered to adjust to 720-740 DEG C, the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, is stirred
Melt homogenizes melt element.
Preferably, polynary alusil alloy of the invention is classified fine degenerate technique,
In 750 DEG C of addition Al-4Zr intermediate alloys in S2 step；
In 730 DEG C of addition Al-10Sr intermediate alloys in S3 step；
Al-10RE intermediate alloy is added in S4 step in 720 DEG C.
The present invention also provides a kind of polynary alusil alloys, by above-mentioned polynary alusil alloy classification fine degenerate technique preparation
It obtains
The beneficial effects of the present invention are:
Due to the rich Fe phase in aluminum alloy materials during remelting have apparent hereditary capacity, remelting temperature compared with
Harmful richness Fe phase when low in original alloy, which is especially acicular beta-Fe and will mutually again appear in secondary aluminium alloy, endangers its mechanics
Performance.One aspect of the present invention dissolves the nocuousness richness Fe phase in former alloy sufficiently, is eliminated in melt by higher remelting temperature
Remaining β-Fe phase.On the other hand, the present invention is changed the precipitation form of richness Fe phase, is passed through by the addition of trace alloying element
Regular shape, complete blocky nascent richness Fe phase of the main group as AlSiFeMnVNi is precipitated, eliminates to alloy mechanical property spy
It is not the precipitation for the acicular beta-Fe phase that plasticity has serious harm.The present invention is also using classification fine degenerate technique, in polybasic aluminum silicon
In the alloy molten stage, divide three phases, is added in Al-4Zr intermediate alloy, Al-10Sr intermediate alloy and Al-10RE according to order
Between alloy, not only refined the crystal grain of polynary alusil alloy, also significantly improved the analysis of Si phase, Al2Cu phase and nascent richness Fe phase
Form out, brittle larger blocky nascent richness Fe phase transition is the smaller particle richness Fe phase dispersed after being especially classified fine degenerate,
While guaranteeing to cast polynary alusil alloy intensity, its plasticity is significantly improved.
Detailed description of the invention
The technical solution of the application is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the metallographic structure for the polynary alusil alloy being prepared by the technique of embodiment 3；
Fig. 2 is the metallographic structure for the polynary alusil alloy being prepared by the technique of comparative example 1；
Fig. 3 is the metallographic structure for the polynary alusil alloy being prepared by the technique of comparative example 2；
Fig. 4 is the metallographic structure for the polynary alusil alloy being prepared by the technique of comparative example 3；
Fig. 5 is the metallographic structure for the polynary alusil alloy being prepared by the technique of comparative example 4.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Embodiment 1
The present embodiment provides a kind of polynary alusil alloys to be classified fine degenerate technique, including following methods:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows: Si 8%, Cu 6%, Mn 0.5%, Zn 0.5%,
Mg is 0.2%, Sn 0.1%, Ni 0.04%, Cr 0.02%, V 0.01%, Fe≤0.4%, surplus are Al and can not
Impurity is avoided, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 770 DEG C；By the fusing of 20% mass fraction
A356 aluminium alloy be placed in reaction container bottom, by 60% mass fraction A356 aluminium alloy and Al-30Si, Al-20Cu, Al-
10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 20% mass is reloaded at the top of reaction vessel
Score A356 aluminium alloy；Reaction vessel is heated to 770 DEG C, stirring melt homogenizes melt element, then reaction vessel temperature
Degree is adjusted to 720 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, and stirring melt keeps melt first
Element homogenization.
S2: it in 740 DEG C of addition Al-4Zr intermediate alloys, is stirred evenly after the fusing of Al-4Zr intermediate alloy；In Al-4Zr
Between in alloy the additional amount of Zr be the alloy obtained after mixed melting gross mass 0.06%；
S3: being cooled to 720 DEG C, and Al-10Sr intermediate alloy is added, and stirs evenly after the fusing of Al-10Sr intermediate alloy,
The additional amount of Sr is the 0.05% of the gross mass of alloy obtained after mixed melting in Al-10Sr intermediate alloy；
S4: after carrying out degasification to the melt that S3 is obtained, refine, take off Slag treatment, 710 DEG C are cooled to, is added among Al-10RE
Alloy stirs evenly after the fusing of Al-10RE intermediate alloy；The additional amount of RE is in S1 step in Al-10RE intermediate alloy
The 0.5% of the gross mass of the alloy obtained after mixed melting；
S5: it is cast to obtain polynary alusil alloy after the melt that S4 is obtained is skimmed, filtered.
Embodiment 2
The present embodiment provides a kind of polynary alusil alloys to be classified fine degenerate technique, including following methods:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows: Si 9%, Cu 7%, Mn 0.9%, Zn 0.9%,
Mg is 0.6%, Sn 0.3%, Ni 0.08%, Cr 0.06%, V 0.05%, Fe≤0.4%, surplus are Al and can not
Impurity is avoided, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 770-790 DEG C；By 30% mass fraction
The A356 aluminium alloy of fusing is placed in reaction container bottom, by 40% mass fraction A356 aluminium alloy and Al-30Si, Al-20Cu,
Al-10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 30% is reloaded at the top of reaction vessel
Mass fraction A356 aluminium alloy；Reaction vessel is heated to 790 DEG C, stirring melt homogenizes melt element, and then reaction is held
Device temperature is adjusted to 740 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, and stirring melt makes to melt
Element of volume homogenization.
S2: it in 760 DEG C of addition Al-4Zr intermediate alloys, is stirred evenly after the fusing of Al-4Zr intermediate alloy；In Al-4Zr
Between in alloy the additional amount of Zr be the alloy obtained after mixed melting gross mass 0.1%；
S3: being cooled to 740 DEG C, and Al-10Sr intermediate alloy is added, and stirs evenly after the fusing of Al-10Sr intermediate alloy；
The additional amount of Sr is the 0.02% of the gross mass of alloy obtained after mixed melting in Al-10Sr intermediate alloy；
S4: after carrying out degasification to the melt that S3 is obtained, refine, take off Slag treatment, 730 DEG C are cooled to, is added among Al-10RE
Alloy stirs evenly after the fusing of Al-10RE intermediate alloy；The additional amount of RE is in S1 step in Al-10RE intermediate alloy
The 0.3% of the gross mass of the alloy obtained after mixed melting；
S5: it is cast to obtain polynary alusil alloy after the melt that S4 is obtained is skimmed, filtered.
Embodiment 3
The present embodiment provides a kind of polynary alusil alloys to be classified fine degenerate technique, including following methods:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows: Si 8.8%, Cu 6.5%, Mn 0.7%, Zn are
0.5%, Mg 0.3%, Sn 0.2%, Ni 0.06%, Cr 0.02%, V 0.03%, Fe 0.32%, surplus Al
And inevitable impurity, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 780 DEG C；By the fusing of 25% mass fraction
A356 aluminium alloy be placed in reaction container bottom, by 50% mass fraction A356 aluminium alloy and Al-30Si, Al-20Cu, Al-
10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 25% mass is reloaded at the top of reaction vessel
Score A356 aluminium alloy；Reaction vessel is heated to 780 DEG C, stirring melt homogenizes melt element, then reaction vessel temperature
Degree is adjusted to 730 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, and stirring melt keeps melt first
Element homogenization.
S2: it in 750 DEG C of addition Al-4Zr intermediate alloys, is stirred evenly after the fusing of Al-4Zr intermediate alloy；In Al-4Zr
Between in alloy the additional amount of Zr be the alloy obtained after mixed melting gross mass 0.07%；
S3: being cooled to 730 DEG C, and Al-10Sr intermediate alloy is added, and stirs evenly after the fusing of Al-10Sr intermediate alloy；
The additional amount of Sr is the 0.03% of the gross mass of alloy obtained after mixed melting in Al-10Sr intermediate alloy；
S4: after carrying out degasification to the melt that S3 is obtained, refine, take off Slag treatment, 720 DEG C are cooled to, is added among Al-10RE
Alloy stirs evenly after the fusing of Al-10RE intermediate alloy；The additional amount of RE is in S1 step in Al-10RE intermediate alloy
The 0.4% of the gross mass of the alloy obtained after mixed melting；
S5: it is cast to obtain polynary alusil alloy after the melt that S4 is obtained is skimmed, filtered.
Comparative example 1
The present embodiment is a kind of polynary preparation technique of aluminum-silicon alloy (not using Al-10Sr intermediate alloy), including with lower section
Method:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows: Si 8.6%, Cu 6.3%, Mn 0.7%, Zn are
0.6%, Mg 0.4%, Sn 0.1%, Ni 0.06%, Cr 0.03%, V 0.03%, Fe 0.35%, surplus Al
And inevitable impurity, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 770-790 DEG C；By 20~30% mass point
The A356 aluminium alloy of several fusings is placed in reaction container bottom, by 40~60% mass fraction A356 aluminium alloys and Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, are reloaded at the top of reaction vessel remaining
Under 20~30% mass fraction A356 aluminium alloys；Reaction vessel is heated to 780 DEG C, stirring melt keeps melt element uniform
Change, then reaction vessel temperature is adjusted to 730 DEG C, the pure Zn and pure Mg coated using aluminium foil and to be pressed into melt completely molten to it
Change, stirring melt homogenizes melt element.
S2: it in 750 DEG C of addition Al-4Zr intermediate alloys, is stirred evenly after the fusing of Al-4Zr intermediate alloy；In Al-4Zr
Between in alloy the additional amount of Zr be the alloy obtained after mixed melting gross mass 0.07%；
S3: after carrying out degasification to the melt that S2 is obtained, refine, take off Slag treatment, 720 DEG C are cooled to, is added among Al-10RE
Alloy stirs evenly after the fusing of Al-10RE intermediate alloy；The additional amount of Sr is mixed melting in Al-10Sr intermediate alloy
The 0.04% of the gross mass of the alloy obtained afterwards；
S4: it is cast to obtain polynary alusil alloy after the melt that S3 is obtained is skimmed, filtered.
Comparative example 2
The present embodiment is a kind of polynary preparation technique of aluminum-silicon alloy (not using Al-10RE intermediate alloy), including with lower section
Method:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows:, Si 8.3%, Cu 6.6%, Mn 0.6%, Zn are
0.6%, Mg 0.6%, Sn 0.1%, Ni 0.05%, Cr 0.02%, V 0.02%, Fe 0.22%, surplus Al
And inevitable impurity, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 780 DEG C；By the fusing of 25% mass fraction
A356 aluminium alloy be placed in reaction container bottom, by 50% mass fraction A356 aluminium alloy and Al-30Si, Al-20Cu, Al-
10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 25% mass is reloaded at the top of reaction vessel
Score A356 aluminium alloy；Reaction vessel is heated to 780 DEG C, stirring melt homogenizes melt element, then reaction vessel temperature
Degree is adjusted to 730 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, and stirring melt keeps melt first
Element homogenization.
S2: it in 750 DEG C of addition Al-4Zr intermediate alloys, is stirred evenly after the fusing of Al-4Zr intermediate alloy；In Al-4Zr
Between in alloy the additional amount of Zr be the alloy obtained after mixed melting gross mass 0.06%；
S3: being cooled to 730 DEG C, and Al-10Sr intermediate alloy is added, and stirs evenly after the fusing of Al-10Sr intermediate alloy；
The additional amount of Sr is the 0.03% of the gross mass of alloy obtained after mixed melting in Al-10Sr intermediate alloy；
S4: it after carrying out degasification to the melt that S3 is obtained, refine, take off Slag treatment, will be cast to obtain after melt filtration more
First alusil alloy.
Comparative example 3
The present embodiment is a kind of polynary preparation technique of aluminum-silicon alloy (three kinds of intermediate alloys are added together), including with lower section
Method:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows: Si 8.8%, Cu 6.5%, Mn 0.7%, Zn are
0.5%, Mg 0.3%, Sn 0.2%, Ni 0.06%, Cr 0.02%, V 0.03%, Fe 0.32%, surplus Al
And inevitable impurity, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 780 DEG C；By the fusing of 25% mass fraction
A356 aluminium alloy be placed in reaction container bottom, by 50% mass fraction A356 aluminium alloy and Al-30Si, Al-20Cu, Al-
10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 25% mass is reloaded at the top of reaction vessel
Score A356 aluminium alloy；Reaction vessel is heated to 780 DEG C, stirring melt homogenizes melt element, then reaction vessel temperature
Degree is adjusted to 730 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, and stirring melt keeps melt first
Element homogenization.
S2: Al-4Zr intermediate alloy, Al-10Sr intermediate alloy and Al-10RE intermediate alloy are packed in aluminium foil at 750 DEG C
It is added in melt, is stirred evenly after intermediate alloy fusing together；The additional amount of Zr is mixed melting in Al-4Zr intermediate alloy
The 0.07% of the gross mass of the alloy obtained afterwards；The additional amount of Sr is obtained conjunction after mixed melting in Al-10Sr intermediate alloy
The 0.03% of the gross mass of gold；The additional amount of RE is the alloy obtained after mixed melting in S1 step in Al-10RE intermediate alloy
Gross mass 0.4%；
S3: the melt that S2 is obtained carry out degasification, refine, skim, filter after cast to obtain polynary alusil alloy.
Comparative example 4
The present embodiment is a kind of polynary preparation technique of aluminum-silicon alloy (not using intermediate alloy), including following methods:
S1: reclaiming aluminium alloy is higher than commercially pure pure metal progress mixed melting with alloy or purity and is stirred
Uniformly；
Reclaiming aluminium alloy is A356 aluminium alloy, alloy or purity be higher than commercially pure pure metal be Al-30Si,
Al-20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
The chemical component of the alloy obtained after mixed melting are as follows: Si 8.8%, Cu 6.5%, Mn 0.7%, Zn are
0.5%, Mg 0.3%, Sn 0.2%, Ni 0.06%, Cr 0.02%, V 0.03%, Fe 0.32%, surplus Al
And inevitable impurity, all elements are mass percent.
The detailed process of mixed melting are as follows: first melt A356 aluminium alloy at 780 DEG C；By the fusing of 25% mass fraction
A356 aluminium alloy be placed in reaction container bottom, by 50% mass fraction A356 aluminium alloy and Al-30Si, Al-20Cu, Al-
10Mn, Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 25% mass is reloaded at the top of reaction vessel
Score A356 aluminium alloy；Reaction vessel is heated to 780 DEG C, stirring melt homogenizes melt element, then reaction vessel temperature
Degree is adjusted to 730 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, and stirring melt keeps melt first
Element homogenization.
S2: the melt that S1 is obtained carry out degasification, refine, skim, filter after cast to obtain polynary alusil alloy.
The ingredient of Al-4Zr used in above-described embodiment and comparative example are as follows: (wt%), Zr >=3.96%, Si≤
0.01%, Fe≤0.01%, surplus Al.The ingredient of Al-10Sr are as follows: (wt%), Sr 9~11%, impurity content≤0.1%,
Surplus is Al.The ingredient of Al-10RE are as follows: (wt%), La 4~5%, Y 4~5%, other rare earth element≤1%, surplus are
Al。
Effect example
The obtained polynary alusil alloy of embodiment 1-3 and comparative example 1-3 is processed into tensile sample by national standard
Piece, tension test carry out on universal tensile testing machine, and mechanical property takes the average value of 5 tension tests.
Table is by the mechanical property of the obtained polynary alusil alloy of embodiment 1-3 and comparative example 1-3
It can see by upper table, in polynary alusil alloy melt stage, divide three phases, Al-4Zr is added according to order
Intermediate alloy, Al-10Sr intermediate alloy and Al-10RE intermediate alloy, obtain higher tensile strength and elongation, plasticity
Biggish growth can have been obtained, in the case where not increasing the usage amount of substance, has obtained better mechanical property.
It is enlightenment with the above-mentioned desirable embodiment according to the application, through the above description, relevant staff is complete
Full various changes and amendments can be carried out in the range of without departing from this item application technical idea.The technology of this item application
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (9)
1. a kind of polynary alusil alloy is classified fine degenerate technique, which is characterized in that including following methods:
S1: reclaiming aluminium alloy and alloy or purity are higher than commercially pure pure metal and carry out mixed melting and stirring
It is even；
S2: it in 740-760 DEG C of addition Al-4Zr intermediate alloy, is stirred evenly after the fusing of Al-4Zr intermediate alloy；
S3: being cooled to 720-740 DEG C, and Al-10Sr intermediate alloy is added, and stirs evenly after the fusing of Al-10Sr intermediate alloy；
S4: after carrying out degasification to the melt that S3 is obtained, refine, take off Slag treatment, it is cooled to 710-730 DEG C, is added among Al-10RE
Alloy stirs evenly after the fusing of Al-10RE intermediate alloy；
S5: it is cast to obtain polynary alusil alloy after the melt that S4 is obtained is skimmed, filtered.
2. polynary alusil alloy according to claim 1 is classified fine degenerate technique, which is characterized in that mixed in S1 step
The chemical component of the alloy obtained after melting are as follows: Si is 8~9%, Cu be 6~7%, Mn be 0.5~0.9%, Zn be 0.5~
0.9%, Mg be 0.2~0.6%, Sn be 0.1~0.3%, Ni is 0.04~0.08%, Cr is 0.02~0.06%, V 0.01
~0.05%, Fe≤0.4%, surplus are Al and inevitable impurity, and all elements are mass percent.
3. polynary alusil alloy according to claim 1 or 2 is classified fine degenerate technique, which is characterized in that in Al-4Zr
Between in alloy the additional amount of Zr be the alloy obtained after mixed melting in S1 step gross mass 0.06~0.1%.
4. polynary alusil alloy according to claim 1-3 is classified fine degenerate technique, which is characterized in that Al-
The additional amount of Sr is the 0.02~0.05% of the gross mass of the alloy obtained after mixed melting in S1 step in 10Sr intermediate alloy.
5. polynary alusil alloy according to claim 1-3 is classified fine degenerate technique, which is characterized in that Al-
The additional amount of RE is the 0.3~0.5% of the gross mass of the alloy obtained after mixed melting in S1 step in 10RE intermediate alloy.
6. polynary alusil alloy according to claim 1-3 is classified fine degenerate technique, which is characterized in that S1 step
Reclaiming aluminium alloy in rapid is A356 aluminium alloy, and it is Al-30Si, Al- that alloy or purity, which are higher than commercially pure pure metal,
20Cu, Al-10Mn, Al-5Ni, Al-5Cr, Al-5V, pure Zn, pure Mg.
7. polynary alusil alloy according to claim 6 is classified fine degenerate technique, which is characterized in that
In S1 step, first A356 aluminium alloy is melted at 770-790 DEG C；By the A356 aluminium of the fusing of 20~30% mass fractions
Alloy is placed in reaction container bottom, by 40~60% mass fraction A356 aluminium alloys and Al-30Si, Al-20Cu, Al-10Mn,
Al-5Ni, Al-5Cr, Al-5V are mixed in the middle part of reaction vessel, and remaining 20~30% mass is reloaded at the top of reaction vessel
Score A356 aluminium alloy；Reaction vessel is heated to 770-790 DEG C, stirring melt homogenizes melt element, and then reaction is held
Device temperature is adjusted to 720-740 DEG C, and the pure Zn and pure Mg coated using aluminium foil is simultaneously pressed into melt and be completely melt to it, stirring melt
Homogenize melt element.
8. polynary alusil alloy according to claim 1-3 is classified fine degenerate technique, which is characterized in that
In 750 DEG C of addition Al-4Zr intermediate alloys in S2 step；
In 730 DEG C of addition Al-10Sr intermediate alloys in S3 step；
Al-10RE intermediate alloy is added in S4 step in 720 DEG C.
9. a kind of polynary alusil alloy, which is characterized in that be classified by the described in any item polynary alusil alloys of claim 1-8 thin
Change modification process to be prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910771282.8A CN110396615A (en) | 2019-08-11 | 2019-08-11 | A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910771282.8A CN110396615A (en) | 2019-08-11 | 2019-08-11 | A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110396615A true CN110396615A (en) | 2019-11-01 |
Family
ID=68328830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910771282.8A Pending CN110396615A (en) | 2019-08-11 | 2019-08-11 | A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110396615A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455227A (en) * | 2020-04-01 | 2020-07-28 | 湖南理工学院 | Sr and RE-containing aluminum-silicon alloy and preparation method thereof |
| CN112458327A (en) * | 2020-11-09 | 2021-03-09 | 哈尔滨理工大学 | Method for improving organization and mechanical property of ZL207 aluminum alloy |
| CN113234949A (en) * | 2021-05-12 | 2021-08-10 | 南昌大学 | Method for preparing regenerated wrought aluminum alloy from waste aluminum alloy |
| CN113913621A (en) * | 2020-11-13 | 2022-01-11 | 内蒙古君成科技有限公司 | Method for preparing Al-Si-Fe alloy by using high-aluminum coal gangue and purifying Al-Si-Fe alloy in grades |
| CN114318069A (en) * | 2021-12-28 | 2022-04-12 | 淮阴工学院 | Alterant, processing method and aluminum-silicon-magnesium alloy |
| CN115522103A (en) * | 2022-10-31 | 2022-12-27 | 合肥工业大学 | Novel refining modifier for hypoeutectic aluminum-silicon alloy and preparation and application methods thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555978A (en) * | 2013-10-09 | 2014-02-05 | 贵州安吉航空精密铸造有限责任公司 | Modification process for casting of aluminum-silicon alloy |
| CN106498245A (en) * | 2016-10-09 | 2017-03-15 | 江苏大学 | A kind of high-strength cast aluminum-silicon alloy of subzero treatment reinforcing and its preparation technology |
| CN108588513A (en) * | 2018-08-10 | 2018-09-28 | 合肥工业大学 | A kind of modified A356 aluminium alloys and its multiple ageing hot processing method |
| CN109022951A (en) * | 2018-10-24 | 2018-12-18 | 广西大学 | A kind of wear-resistant complex al-si-based alloy and preparation method thereof |
| WO2019101316A1 (en) * | 2017-11-23 | 2019-05-31 | Norsk Hydro Asa | Al-si-mg-zr-sr alloy with particle-free grain refinement and improved heat conductivity |
-
2019
- 2019-08-11 CN CN201910771282.8A patent/CN110396615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555978A (en) * | 2013-10-09 | 2014-02-05 | 贵州安吉航空精密铸造有限责任公司 | Modification process for casting of aluminum-silicon alloy |
| CN106498245A (en) * | 2016-10-09 | 2017-03-15 | 江苏大学 | A kind of high-strength cast aluminum-silicon alloy of subzero treatment reinforcing and its preparation technology |
| WO2019101316A1 (en) * | 2017-11-23 | 2019-05-31 | Norsk Hydro Asa | Al-si-mg-zr-sr alloy with particle-free grain refinement and improved heat conductivity |
| CN108588513A (en) * | 2018-08-10 | 2018-09-28 | 合肥工业大学 | A kind of modified A356 aluminium alloys and its multiple ageing hot processing method |
| CN109022951A (en) * | 2018-10-24 | 2018-12-18 | 广西大学 | A kind of wear-resistant complex al-si-based alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| HAO WAN ET AL.: "Influence of Strontium Addition on Microstructure and Mechanical Properties of an Al-10Si-5Cu Alloy", 《TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS 》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455227A (en) * | 2020-04-01 | 2020-07-28 | 湖南理工学院 | Sr and RE-containing aluminum-silicon alloy and preparation method thereof |
| CN112458327A (en) * | 2020-11-09 | 2021-03-09 | 哈尔滨理工大学 | Method for improving organization and mechanical property of ZL207 aluminum alloy |
| CN113913621A (en) * | 2020-11-13 | 2022-01-11 | 内蒙古君成科技有限公司 | Method for preparing Al-Si-Fe alloy by using high-aluminum coal gangue and purifying Al-Si-Fe alloy in grades |
| CN113913621B (en) * | 2020-11-13 | 2023-09-15 | 内蒙古君成科技有限公司 | Method for preparing aluminum-silicon-iron alloy by using high-aluminum gangue and purifying in grading manner |
| CN113234949A (en) * | 2021-05-12 | 2021-08-10 | 南昌大学 | Method for preparing regenerated wrought aluminum alloy from waste aluminum alloy |
| CN114318069A (en) * | 2021-12-28 | 2022-04-12 | 淮阴工学院 | Alterant, processing method and aluminum-silicon-magnesium alloy |
| CN115522103A (en) * | 2022-10-31 | 2022-12-27 | 合肥工业大学 | Novel refining modifier for hypoeutectic aluminum-silicon alloy and preparation and application methods thereof |
| CN115522103B (en) * | 2022-10-31 | 2023-06-16 | 合肥工业大学 | Novel refining modifier for hypoeutectic aluminum-silicon alloy and preparation and application methods thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110396615A (en) | A kind of polynary alloy alusil alloy classification fine degenerate technique and obtained | |
| CN108286001B (en) | A kind of preparation method of the high tough aluminium alloy of semisolid pressure casting | |
| WO2021098044A1 (en) | High-performance aluminum alloy for semi-solid die casting, and preparation method thereof | |
| JP5360591B2 (en) | Aluminum alloy ingot and method for producing the same | |
| CN108396204A (en) | Hypoeutectic aluminum-silicon alloy casting and process method for improving performance thereof | |
| EP3663419A1 (en) | Al ALLOY RECOVERY METHOD | |
| CN108103363A (en) | It is a kind of for refinement-alterant of hypoeutectic silumin alloy and its preparation method and application | |
| CN114277272A (en) | Composite rare earth alloy for modifying aluminum alloy and preparation method thereof | |
| CN110157935A (en) | Cast Al-Si alloy Al-V-B fining agent, preparation method and application | |
| Gu et al. | Effects of boron addition on the morphology of silicon phases in Al-Si casting alloys | |
| CN105734372A (en) | Al-Cu aluminum alloy casting material and preparation method thereof | |
| CN109439975A (en) | A kind of composite inoculating method of composite modifier and regeneration cast aluminium alloy | |
| CN113862531A (en) | Aluminum alloy and preparation method thereof | |
| CN106756305B (en) | A kind of Aluminum alloy modification processing method | |
| CN108441659A (en) | A kind of smelting technology of high tough die casting A356 aluminium alloys | |
| CN114214534A (en) | Modified aluminum alloy and preparation method thereof | |
| Chanyathunyaroj et al. | Mechanical properties of squeeze-cast Al–7Si–0.3 Mg alloys with Sc-modified Fe-rich intermetallic compounds | |
| Xu et al. | Effect of La on microstructure and grain-refining performance of Al-Ti-C grain refiner | |
| CN115418535B (en) | Aluminum alloy material, preparation method and application thereof, and aluminum alloy product | |
| CN106521267A (en) | Casting method for aluminum alloy precision template | |
| CN113373328B (en) | Aluminum-magnesium-yttrium intermediate alloy prepared by magnesiothermic reduction method and preparation method thereof | |
| CN115976356A (en) | As-cast high-strength high-toughness die-casting aluminium-silicon alloy and its preparation method | |
| CN110184485A (en) | 3003 aluminum alloy plate materials of one kind and its pre-treating technology | |
| CN115852211A (en) | Heat treatment-free aluminum alloy and preparation method thereof | |
| CN115044806A (en) | Aluminum alloy additive and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191101 |
|
| RJ01 | Rejection of invention patent application after publication |