CN107419120A - It is a kind of using the compound method for preparing high-strength hypoeutectic Al Si alloys of microalloying and fast solidification technology - Google Patents

It is a kind of using the compound method for preparing high-strength hypoeutectic Al Si alloys of microalloying and fast solidification technology Download PDF

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CN107419120A
CN107419120A CN201710695099.5A CN201710695099A CN107419120A CN 107419120 A CN107419120 A CN 107419120A CN 201710695099 A CN201710695099 A CN 201710695099A CN 107419120 A CN107419120 A CN 107419120A
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alloy
alloys
hypoeutectic
strength
cast
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CN107419120B (en
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李玉坤
杜晓东
张雅
吴玉程
雷璇璇
葛海涛
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合肥工业大学
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/03Making alloys by melting using master alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent

Abstract

The invention discloses a kind of using the compound method for preparing high-strength hypoeutectic Al Si alloys of microalloying and fast solidification technology, be the intermediate alloy that will be prepared cast after melting obtain needed for composition aluminium alloy cast ingot;By alloy cast ingot crushing washing;Cleaned alloy cast ingot is uniform using the induction melting furnace melting of inert gas shielding, then inject quick solidification in chill cavity and high-strength Al Si casting wrought alloy is made.Compared with prior art, high-strength hypoeutectic Al Si alloy structures are uniformly tiny made from the inventive method, and mechanical property is substantially better than conventional cast hypoeutectic Al Si alloys, has certain plastic deformation ability concurrently, possesses good market application foreground.

Description

One kind using microalloying and fast solidification technology it is compound prepare high-strength hypoeutectic Al- The method of Si alloys
Technical field
The present invention relates to a kind of high-strength hypoeutectic Al-Si alloy is prepared using microalloying and fast solidification technology are compound Method, belong to metal material and preparing technical field.
Background technology
Al-Si alloys are good because of its good casting character, medium mechanical property, relatively low thermal coefficient of expansion, wearability The system in products such as auto parts and components, Aero-Space and household electrical appliance is widely deployed with relatively low manufacturing cost In making, Al-Si alloys are that kind is most in current aluminium alloy, the maximum alloy material of dosage.
Al-Si alloys are used due to its good mobility usually as casting alloy.For hypoeutectic and eutectic Al- Si alloys, the lath-shaped common reciever formed in casting process seriously isolate aluminum substrate so that alloy ductility, deformability are poor; For Hypereutectic Al-Si Alloy, the thick primary crystal Si phases and the lath-shaped common reciever that are generated in alloy graining process, the two Double action has a strong impact on alloy ductility and plastic deformation ability, and stress concentration is also easy to produce in loading process, exists to matrix The effect of isolating so that larger bottleneck be present in Al-Si alloy deformation poor-performings, comprehensive mechanical property.
Existing Al-Si alloys are difficult to take into account its mechanical property and deformability, cause Al-Si alloy developments apply by Considerable restraint, so needing a kind of new Al-Si alloy materials and process badly to effectively improve the comprehensive of Al-Si alloys Energy.
The content of the invention
In order to avoid the weak point present in above-mentioned prior art, the present invention is intended to provide it is a kind of using microalloying and The compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology.
The present invention controls Si constituent contents, with reference to the compound of Mg, Cu, Sc, Zr element by rational design of alloy Microalloying and the combination process quickly solidified, prepare the height with certain deformability and excellent comprehensive mechanical property Strong hypoeutectic Al-Si alloy.
The composition of high-strength hypoeutectic Al-Si alloy prepared by the present invention forms as follows by mass percentage:
Si 3~4wt.%, Mg 0.3~0.5wt.%, Cu 0.3~0.5wt.%, Zr 0.05~0.25wt.%, Sc 0.05~0.20wt.%, surplus are Al and inevitable impurity.
Each composition is preferably as follows by mass percentage:
Al 95.7wt.%, Si 3.0wt.%, Mg 0.45wt.%, Cu 0.45wt.%, Zr 0.20wt.%, Sc 0.20wt.%.
The present invention uses microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology, wraps Include following steps:
Step 1:Dispensing
Weigh according to proportional quantity and closed among pure Al, Al-Si intermediate alloy, Al-Mg intermediate alloys, Al-Cu of corresponding mass Gold, Al-Zr intermediate alloys and Al-Sc intermediate alloys;
Step 2:Melting and casting prepares alloy cast ingot
2a, pure Al, Al-Si intermediate alloy for weighing step 1 are added in preheated crucible, preheating temperature 350 DEG C, 730 DEG C then are warming up to stove, is all stood after fusing and is incubated 25min;
2b, Al-Cu intermediate alloys that step 1 weighs, Al-Zr intermediate alloys be added in the alloy molten solution of 2a acquisitions, All stood after fusing and be incubated 15min in 730 DEG C;
2c, the 2b temperature of alloy molten solution obtained is down to 700 DEG C, wrapped up and added in the Al-Sc that step 1 weighs with aluminium foil Between alloy, Al-Mg intermediate alloys, all stirred after fusing, and 10min are stood in 700 DEG C of insulations, make the diffusion of its composition uniform;
Refining agent C is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, the aluminium alloy of gained after refining is melted Body is removed the gred after 700 DEG C of insulations stand 10~15min with Slag Tool, the finally cast molding in rectangular metal mould, is obtained Alloy cast ingot;Refining agent C2Cl6Addition quality for 2c obtain alloy molten solution quality 1~1.5%;
Step 3:Aluminium alloy cast ingot is broken, cleaning
Small blocks, small blocks full-size≤10mm, then by broken aluminium are broken for the alloy cast ingot that step 2 obtains Alloy block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4:Quick solidification prepares high-strength hypoeutectic Al-Si alloy
Aluminium alloy block cleaned in step 3 is placed in into bottom to carry in round nozzle quartz test tube, then by quartz Test tube is positioned in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, aluminium Alloy block opens spray to cast switch after melting and being well mixed when spray to cast pressure is 0.04MPa, utilizes inert gas flow and pressure Molten aluminium alloy is injected into metallic copper die cavity body by power difference, is 10 in cooling rate3~104Under conditions of K/S, made through quick solidification Obtain high-strength hypoeutectic Al-Si alloy.
Compared with prior art, beneficial effects of the present invention are embodied in:
1st, the present invention uses microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology, The advantages of having taken into account both microalloying and fast solidification technology simultaneously.On the one hand designed by rational alloy, control Si members Cellulose content, Mg, Cu, Sc, Zr combined microalloying carry out the tissue of modified alloy, improve the deformability of alloy;An other side Face combines the strong thinning microstructure of fast solidification technology, improves common reciever form, Elemental redistribution is more uniformly reduced segregation. Using the combination process of the two, tiny primary crystal α-Al tissues and nodularization and tiny eutectic Si groups are obtained by its synergy Knit, significantly improve the mechanical property of alloy, prepare high-strength with certain deformability and excellent comprehensive mechanical property Hypoeutectic Al-Si alloy.
2nd, the tensile strength scope of high-strength hypoeutectic Al-Si alloy produced by the present invention is 290.8~354.1MPa, extension Rate is 14.5%~20.9%, and being superior to the mechanical properties of general Al-Si casting alloys, (A356 alloy T6 state tensile strength is general Not higher than 240MPa), the application field of Al-Si alloys is expanded, some special occasions that are particularly suitable for use in are to high-strength Al-Si alloys The demand of material.
3rd, alloy preparation method is simple in the present invention, and equipment cost is cheap, and cost control is more advantageous, and it is big to be advantageous to the later stage The industrialized production of batch.
Embodiment
Come that the invention will be further described below with reference to specific embodiment, those skilled in the art of the present technique should can be with Understand, embodiment is only used for scope that is schematically illustrate, and can not limiting the claim of the present invention.
Aluminium intermediate alloy raw material used in the present invention, its source is not particularly limited, it is commercially buying or according to this It is prepared by conventional method known to art personnel.
The composition of high-strength hypoeutectic Al-Si alloy prepared by the present invention forms as follows by mass percentage:
Si 3~4wt.%, Mg 0.3~0.5wt.%, Cu 0.3~0.5wt.%, Zr 0.05~0.25wt.%, Sc 0.05~0.20wt.%, surplus are Al and inevitable impurity.
The present invention uses microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology, wraps Include following steps:
Step 1:Dispensing
Weigh according to proportional quantity and closed among pure Al, Al-Si intermediate alloy, Al-Mg intermediate alloys, Al-Cu of corresponding mass Gold, Al-Zr intermediate alloys and Al-Sc intermediate alloys;
Step 2:Melting and casting prepares alloy cast ingot
2a, pure Al, Al-Si intermediate alloy for weighing step 1 are added in preheated crucible, preheating temperature 350 DEG C, 730 DEG C then are warming up to stove, is all stood after fusing and is incubated 25min;
2b, Al-Cu intermediate alloys that step 1 weighs, Al-Zr intermediate alloys be added in the alloy molten solution of 2a acquisitions, All stood after fusing and be incubated 15min in 730 DEG C;
2c, the 2b temperature of alloy molten solution obtained is down to 700 DEG C, wrapped up and added in the Al-Sc that step 1 weighs with aluminium foil Between alloy, Al-Mg intermediate alloys, all stirred after fusing, and 10min are stood in 700 DEG C of insulations, make the diffusion of its composition uniform;
Refining agent C is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, the aluminium alloy of gained after refining is melted Body is removed the gred after 700 DEG C of insulations stand 10~15min with Slag Tool, the finally cast molding in rectangular metal mould, is obtained Alloy cast ingot;Refining agent C2Cl6Addition quality for 2c obtain alloy molten solution quality 1~1.5%;
Step 3:Aluminium alloy cast ingot is broken, cleaning
Small blocks, small blocks full-size≤10mm, then by broken aluminium are broken for the alloy cast ingot that step 2 obtains Alloy block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4:Quick solidification prepares high-strength hypoeutectic Al-Si alloy
Aluminium alloy block cleaned in step 3 is placed in into bottom to carry in round nozzle quartz test tube, then by quartz Test tube is positioned in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, aluminium Alloy block opens spray to cast switch after melting and being well mixed when spray to cast pressure is 0.04MPa, utilizes inert gas flow and pressure Molten aluminium alloy is injected into metallic copper die cavity body by power difference, is 10 in cooling rate3~104Under conditions of K/S, made through quick solidification Obtain high-strength hypoeutectic Al-Si alloy.
With reference to the specific preparation parameter of each embodiment in table 1, the invention will be further described.
The embodiment 1-7 of table 1 experiment parameter
Embodiment 1:
Microalloying and the compound method for preparing high-strength hypoeutectic Al-Si alloy of fast solidification technology are used in the present embodiment It is as follows:
Step 1:Dispensing
According to the quality of 95.85%Al, 3.0%Si, 0.45%Mg, 0.45%Cu, 0.20%Zr and 0.05%Sc in table 1 Percentage, weigh 764.3g fine aluminiums (purity 99.99%), 139.3gAl-21.54%Si intermediate alloys, 9gAl-50.38% Mg intermediate alloys, 11.3gAl-39.97%Cu intermediate alloys, 51.3gAl-3.9%Zr intermediate alloys and 24.8gAl-2.02% Sc intermediate alloys, dispensing gross mass are 1000g;
Step 2:Melting and casting prepares alloy cast ingot
2a, pure Al, Al-Si intermediate alloy for weighing step 1 are added in preheated crucible, preheating temperature 350 DEG C, 730 DEG C then are warming up to stove, is all stood after fusing and is incubated 25min;
2b, Al-Cu intermediate alloys that step 1 weighs, Al-Zr intermediate alloys are added to the alloy molten solution obtained in 2a In, all stood after fusing and be incubated 15min in 730 DEG C;
2c, the 2b temperature of alloy molten solution obtained is down to 700 DEG C, wrapped up and added in the Al-Sc that step 1 weighs with aluminium foil Between alloy, Al-Mg intermediate alloys, all stirred after fusing, and 10min are stood in 700 DEG C of insulations, make the diffusion of its composition uniform;
The refining agent C of alloy molten solution quality 1~1.5% is added in 2d, the alloy molten solution obtained to 2c2Cl6Refine degasification, The aluminium alloy melt of gained after refining is removed the gred after 700 DEG C of insulations stand 10~15min with Slag Tool, finally in rectangle gold Belong to cast molding in mould, obtain alloy cast ingot;
Step 3:Aluminium alloy cast ingot is broken, cleaning
Small blocks are broken for the aluminium alloy cast ingot that step 2 obtains, small blocks full-size is less than or equal to 10mm, then will Broken aluminium alloy block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
Step 4:High-strength hypoeutectic Al-Si alloy is prepared in quick solidification
Aluminium alloy block cleaned in step 3 is placed in into bottom to carry in round nozzle quartz test tube, then by quartz Test tube is positioned in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, block Body opens spray to cast switch after melting and being well mixed when spray to cast pressure is 0.04MPa, will using inert gas flow and pressure differential Molten aluminium alloy is injected into metallic copper die cavity body, is 10 in cooling rate3~104Under conditions of K/S, it is made high-strength through quick solidification Hypoeutectic Al-Si alloy.
Performance evaluation is carried out to sample made from the present embodiment:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 290.8MPa Rate is stretched for 14.5%.
Embodiment 2:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 2:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 308.1MPa Rate is stretched for 15.6%.
Embodiment 3:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 3:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 315.9MPa Rate is stretched for 16.7%.
Embodiment 4:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 4:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 324.5MPa Rate is stretched for 17.9%.
Embodiment 5:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 5:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 337.4MPa Rate is stretched for 18.4%.
Embodiment 6:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 6:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 345.7MPa Rate is stretched for 19.2%.
Embodiment 7:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 7:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 354.1MPa Rate is stretched for 20.9%.
Embodiment 8:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 8:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 344.3MPa Rate is stretched for 18.4%.
Embodiment 9:
The preparation process of the present embodiment is referring to embodiment 1, the difference is that the difference of preparation parameter, is specifically shown in Table 1.
Performance evaluation is carried out to sample made from embodiment 9:
The tensile strength of " 50KN SANS CMT-5105 electronic universal testers " measurement sample is used to prolong for 332.7MPa Rate is stretched for 17.1%.
The tensile strength scope of high-strength hypoeutectic Al-Si alloy produced by the present invention is 290.8~354.1MPa, elongation percentage For 14%~20%, being superior to the mechanical properties of general Al-Si casting alloys, (A356 alloy T6 state tensile strength is generally not more than 240MPa), the application field of Al-Si alloys is expanded, some special occasions that are particularly suitable for use in are to high-strength Al-Si alloy materials Demand.And alloy preparation method is simple in the present invention, equipment cost is cheap, and cost control is more advantageous, and it is big to be advantageous to the later stage The industrialized production of batch.
The above-mentioned description to embodiment is understood for the ease of those skilled in the art and using invention.It is ripe A variety of equivalent modifications can also be made or replace on the premise of without prejudice to the invention spirit by knowing those skilled in the art Change, and General Principle described herein is applied in other embodiment without by performing creative labour.Therefore, it is of the invention Creation is not limited to the embodiment, and those skilled in the art does not depart from scope of the invention institute according to the announcement of the present invention The equivalent modification or replacement made are all contained in the application claim limited range.

Claims (7)

  1. It is 1. a kind of using the compound method for preparing high-strength hypoeutectic Al-Si alloy of microalloying and fast solidification technology, its feature It is to comprise the following steps:
    Step 1:Dispensing
    According to proportional quantity weigh pure Al, Al-Si intermediate alloy of corresponding mass, Al-Mg intermediate alloys, Al-Cu intermediate alloys, Al-Zr intermediate alloys and Al-Sc intermediate alloys;
    Step 2:Melting and casting prepares alloy cast ingot
    2a, pure Al, Al-Si intermediate alloy for weighing step 1 are added in preheated crucible, are then warming up to stove 730 DEG C, all stood after fusing and be incubated 25min;
    2b, Al-Cu intermediate alloys that step 1 weighs, Al-Zr intermediate alloys be added in the alloy molten solution of 2a acquisitions, all Stood after fusing and be incubated 15min in 730 DEG C;
    2c, the 2b temperature of alloy molten solution obtained is down to 700 DEG C, wrapped up adding among the Al-Sc that step 1 weighs with aluminium foil and closed Gold, Al-Mg intermediate alloys, all stirred after fusing, and 10min is stood in 700 DEG C of insulations, make the diffusion of its composition uniform;
    Refining agent C is added in 2d, the alloy molten solution obtained to 2c2Cl6Degasification is refined, the aluminium alloy melt of gained after refining is existed 700 DEG C of insulations are removed the gred after standing 10~15min with Slag Tool, the finally cast molding in rectangular metal mould, obtain alloy Ingot casting;
    Step 3:Aluminium alloy cast ingot is broken, cleaning
    Small blocks, small blocks full-size≤10mm, then by broken aluminium alloy are broken for the alloy cast ingot that step 2 obtains Block, which is sequentially placed into acetone and alcohol, to be cleaned by ultrasonic, and is dried after taking-up stand-by;
    Step 4:Quick solidification prepares high-strength hypoeutectic Al-Si alloy
    Aluminium alloy block cleaned in step 3 is placed in into bottom to carry in round nozzle quartz test tube, then by quartz test tube It is positioned in vacuum melting furnace, is evacuated to 3 × 10-3Pa, and be filled with argon gas and be heated to 700 DEG C and carry out protection melting, aluminium alloy Mass melts and it is well mixed after open spray to cast switch, molten aluminium alloy is injected into metal using inert gas flow and pressure differential In copper mold cavity, high-strength hypoeutectic Al-Si alloy is made through quick solidification.
  2. 2. preparation method according to claim 1, it is characterised in that:
    The composition of the high-strength hypoeutectic Al-Si alloy forms as follows by mass percentage:Si 3~4wt.%, Mg 0.3~ 0.5wt.%, Cu 0.3~0.5wt.%, Zr 0.05~0.20wt.% of 0.05~0.25wt.%, Sc, surplus is for Al and not Evitable impurity.
  3. 3. preparation method according to claim 2, it is characterised in that:
    The composition of the high-strength hypoeutectic Al-Si alloy forms as follows by mass percentage:Al 95.7wt.%, Si 3.0wt.%, Mg 0.45wt.%, Cu 0.45wt.%, Zr 0.20wt.%, Sc 0.20wt.%.
  4. 4. preparation method according to claim 1, it is characterised in that:
    In step 2a, the preheating temperature of crucible is 350 DEG C.
  5. 5. preparation method according to claim 1, it is characterised in that:
    In step 2d, refining agent C2Cl6Addition quality for 2c obtain alloy molten solution quality 1~1.5%.
  6. 6. preparation method according to claim 1, it is characterised in that:
    In step 4, spray to cast pressure is 0.04MPa.
  7. 7. preparation method according to claim 1, it is characterised in that:
    In step 4, the cooling rate quickly solidified is 103~104K/S。
CN201710695099.5A 2017-08-15 2017-08-15 A method of high-strength hypoeutectic Al-Si alloy is prepared using microalloying and fast solidification technology are compound Active CN107419120B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394931A (en) * 1992-01-13 1995-03-07 Honda Giken Kogyo Kabushiki Kaisha Aluminum-based alloy cast product and process for producing the same
CN104480355A (en) * 2014-12-04 2015-04-01 绥阳县耐环铝业有限公司 Silicon-aluminum alloy and preparation method thereof
CN104805340A (en) * 2015-05-21 2015-07-29 广西友合铝材有限公司 Rare earth aluminium-magnesium-silicon alloy material and preparation method thereof
CN106521258A (en) * 2016-12-28 2017-03-22 南京理工大学 High-strength silicon aluminum alloy and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394931A (en) * 1992-01-13 1995-03-07 Honda Giken Kogyo Kabushiki Kaisha Aluminum-based alloy cast product and process for producing the same
CN104480355A (en) * 2014-12-04 2015-04-01 绥阳县耐环铝业有限公司 Silicon-aluminum alloy and preparation method thereof
CN104805340A (en) * 2015-05-21 2015-07-29 广西友合铝材有限公司 Rare earth aluminium-magnesium-silicon alloy material and preparation method thereof
CN106521258A (en) * 2016-12-28 2017-03-22 南京理工大学 High-strength silicon aluminum alloy and preparation method thereof

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