CN108103369A - A kind of high magnesium Al-Si casting alloys of high manganese and preparation method thereof - Google Patents
A kind of high magnesium Al-Si casting alloys of high manganese and preparation method thereof Download PDFInfo
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- C22C21/04—Modified aluminium-silicon alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
A kind of high magnesium Al Si casting alloys of high manganese and preparation method thereof, alloying component contain Si 6.0~8.5%, Mg 0.65~1.5%, Mn 0.25~0.75% by weight percentage, Ti 0.08~0.25%, Be≤0.2%, Zn≤0.5%, Cr≤0.5%, Zr≤0.5%, surplus are Al and impurity；Preparation method is：(1) raw material is prepared by above-mentioned set component；(2) aluminium ingot heating fusing is formed into aluminum melt, other raw materials is added in into aluminum melt；(3) add in refining agent and carry out refining treatment；It adds in alterant and carries out Metamorphism treatment；(4) skim after degasification, ingot casting is poured into after standing；(5) solution treatment and ageing treatment.The present invention improves the precipitation that Mg contents promote hardening constituent MgSi, improves the effect of precipitation strength；High Mn content is carried, is eliminated because the negative effect that the decomposition of eutectic Si particles caused by improving Mg contents and Coarsening Temperature reduce.
Description
Technical field
The invention belongs to metal material and metallurgical technology fields, and in particular to a kind of high magnesium Al-Si casting alloys of high manganese and
Its preparation method.
Background technology
Al-Si casting alloys have good Production Practice of Casting Technologies and air-tightness, available for sand mold, permanent mold casting and pressure
Power is cast, and is most widely used cast aluminium alloy gold in current industrial；They also have good mechanical performance and corrosion resistance
Can, available for the various structural members for bearing medium load and attachment and corrosion resistant part.
Mg is added in Al-Si bianry alloys and forms Al-Si-Mg systems alloy, Mg and Si combine to form Mg2Si phases can participate in
Solid solution-precipitation strength of alloy, thus the mechanical performance of alloy can be improved by being heat-treated；For example, ZL101 and ZL101A, contains
There is the Mg of 0.25-0.45wt%, there is significant precipitation strengthening effect；Mg contents are further improved, for example, ZL114A, Mg contain
Amount is increased to 0.45-0.6wt%, and mechanical property significantly improves；According to this rule, Mg contents are further improved, it can be with shape
Into more hardening constituent Mg2Si, so as to further improve the mechanical property of alloy；In Al-Si alloys, Mn is considered as miscellaneous
Prime element；In national standard " GBT1173-2013 cast aluminium alloy golds ", the content limit of Mn is 0.1wt%；Current high magnesium and
The research of the alusil alloy of high Mn content is less.
The content of the invention
The object of the present invention is to provide a kind of high high magnesium Al-Si casting alloys of manganese and preparation method thereof, by being closed in aluminium silicon
Higher Mg and Mn are introduced in gold, realizes mechanical property more higher than existing hypoeutectic type Al-Si alloys, while simplifies technique step
Suddenly, production cost is reduced.
The ingredient of the high magnesium Al-Si casting alloys of high manganese of the present invention contains Si 6.0~8.5%, Mg by weight percentage
0.65~1.5%, Mn 0.25~0.75%, Ti 0.08~0.25%, Be≤0.2%, Zn≤0.5%, Cr≤0.5%, Zr
≤ 0.5%, surplus is Al and impurity, in the impurity, Fe≤0.5%, and other impurity element total content≤1.0%.
The preferred component of the high magnesium Al-Si casting alloys of above-mentioned high manganese contains Si 6.5~7.5%, Mg by weight percentage
0.8~1.25%, Mn 0.35~0.55%, Ti 0.1~0.25%, Be≤0.1%, Zn≤0.5%, Cr≤0.5%, Zr≤
0.5%, surplus is Al and impurity, in the impurity：Fe≤0.5%；Other impurity element total content≤1.0%.
321~366MPa of tensile strength of the high magnesium Al-Si casting alloys of above-mentioned high manganese, elongation percentage 5.2~5.9%.
The preparation method of the high magnesium Al-Si casting alloys of high manganese of the present invention carries out according to the following steps：
1st, raw material is prepared by above-mentioned set component；The raw material for aluminium ingot, magnesium ingot, zinc ingot metal, manganese additive, titanium additives,
Zirconium additive, aluminium manganese intermediate alloy, aluminium titanium intermediate alloy, aluminium zirconium hardener, aluminium silicon intermediate alloy, aluminium chromium hardener, aluminium
Beryllium intermediate alloy, metallic silicon or aluminium silicon intermediate alloy；2nd, aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled 700~800
DEG C, other raw materials are added in aluminum melt, until after whole melting sources, are stirred evenly, form alloy melt, temperature control exists
700~800 DEG C；
3rd, refining agent is added in into alloy melt and carries out refining treatment；Then Al-10Sr is added in into alloy melt to go bad
Agent carries out Metamorphism treatment, and addition is the 0.1~0.5% of aluminium alloy melt total weight；
4 will skim after the alloy melt degasification of Metamorphism treatment, then stand 15~25min at 700~800 DEG C, make to melt
Contamination precipitation or floating in body, then pour into casting；
5th, casting is subjected to solution treatment and ageing treatment, the high magnesium Al-Si alloy-steel castings of high manganese is made.
Above-mentioned refining agent selects any refining agent with refining effect, such as RJ-1 refining agents, the addition of refining agent
It measures as the 0.2-0.8% of aluminium alloy melt total weight.
Above-mentioned degasification is to be passed through argon gas or nitrogen to adding in aluminium water using getter, and the flow of argon gas or nitrogen is
0.2~0.3m3/h。
Above-mentioned solution treatment is the then quenching cooling when 520~560 DEG C of heat preservations 3~30 are small.
Above-mentioned ageing treatment be 150~200 DEG C heat preservation 3~30 it is small when, it is then air-cooled.
In the above method, when adding in Cr and Be elements, aluminium chromium hardener and aluminium beryllium intermediate alloy are selected respectively.
In the above method, when adding in Mn, Ti and Zr element, difference aluminium manganese intermediate alloy, aluminium titanium intermediate alloy and aluminium
Zirconium intermediate alloy selects manganese additive, titanium additives and zirconium additive respectively.
In the above method, Si is added in, selects metallic silicon or aluminium silicon intermediate alloy.
In the above method, the residual volume that Sr in alloy is made due to adding in Sr alterants is 0.01~0.05%.
Research shows that the mechanical property of alloy can not be significantly improved by simply further improving Mg contents, it may be possible to because
To improve Mg contents the decomposition of eutectic Si particles and Coarsening Temperature is caused to reduce；Cause eutectic Si particles during solution treatment
Undue roughening, Fig. 1 shows the patterns of two alloys eutectic Si particles under the conditions of identical solid solution with different Mg contents.It is aobvious
So, the eutectic Si of the alloy of high Mg contents is significantly coarse；Improve alloy Mn contents, can improve eutectic Si particles decomposition and
It is particle coarsening to inhibit eutectic Si for Coarsening Temperature；Fig. 2 represents there is identical Mg contents, and two alloys of different Mn contents are identical
The metallographic structure of eutectic Si particles under the conditions of solid solution；As can be seen that the burning of the alloy without Mn, and the eutectic of high Mn alloys
Si particles are not excessive coarsening；Addition Mn is conducive to improve solid solubility temperature, so as to be conducive to improve the effect of solid solution-precipitation strength
Fruit.
Al-Si systems cast aluminium alloy gold reasonable composition provided by the invention improves alloy on the basis of Al-Si is principal component
The content of element M g and Mn；It improves Mg contents and promotes hardening constituent Mg2The precipitation of Si improves the effect of precipitation strength, reaches
Improve the purpose of alloy mechanical property；High Mn content is carried, improves decomposition and the Coarsening Temperature of eutectic Si particles, it is suppressed that eutectic
Si is particle coarsening, so as to reduce or even eliminate because the decomposition of eutectic Si particles caused by improving Mg contents and Coarsening Temperature drop
Low negative effect can give full play to the precipitation strength effect of high Mg alloys.
Description of the drawings
Fig. 1 be content of magnesium be respectively 0.5% and 1.5% Al-7Si alloys 535 DEG C solid solution 12 it is small when after eutectic Si
The metallographic structure figure of particle；
Fig. 2 be manganese content be respectively 0 and 0.5% Al-7Si-1.0Mg alloys 555 DEG C solid solution 12 it is small when after eutectic
The metallographic structure figure of Si particles；
Specific embodiment
In the description of the present invention, it is necessary to explanation, the person that is not specified actual conditions in embodiment, according to normal condition or
The condition that manufacturer suggests carries out；Reagents or instruments used without specified manufacturer is that can be obtained by commercially available purchase
Conventional products.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other into conflict.
It, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical solution be clearly and completely described；The embodiment of the present invention provides a kind of high magnesium high violent Al-Si cast alloy materials,
It is elaborated by specific examples below to Al-Si systems cast aluminium alloy material of the present invention and preparation method thereof；Each
Embodiment is to prepare 100kg alloys；In the embodiment using pre-alloyed aluminium ingot, due to using simple algorithm, in addition after
The alloying element of continuous addition, alloy total amount also slightly have deviation slightly above 100kg, final alloying component and design ingredient；But all exist
In the deviation range allowed in industrial production.
The remelting selected in the embodiment of the present invention is standard GB/T/T 1196-2008 with aluminium ingot《Remelting aluminium ingot》In
Al99.70, aluminum content be not less than 99.70wt%；Or the common pre-alloyed cast aluminium alloy gold ingot of casting industry, such as state
Family standard GB/T 8733-2016《Cast aluminium alloy gold ingot》In 356Z.3, containing 6.5~7.5wt% of Si, Mg 0.3~
0.4wt%, Ti0.1~0.2wt%, Fe≤0.12wt%, Mn≤0.05wt%, surplus are Al and other impurity elements.
Degasification is to be passed through argon gas to adding in aluminium water using getter in the embodiment of the present invention, the flow of argon gas for 0.2~
0.3m3/h。
The residual volume for making Sr in alloy in the embodiment of the present invention due to adding in Sr alterants is 0.01~0.05%, the ingredient
It is included in impurity component.
After the processing of mesometamorphism of the embodiment of the present invention, Al-5Ti-B grain refiners are added in or are added without into aluminium alloy melt
Crystal grain thinning, addition are the 0.1~0.2% of aluminium alloy melt total weight.
Comparative example 1
Prepare aluminium ingot and magnesium ingot, wherein aluminium ingot is alloying aluminium ingot 356z.3；Raw material is as shown in table 1, and percentage is weight
Percentage；
Table 1
Aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled at 720 DEG C, magnesium ingot is added in aluminum melt, until whole originals
It after material fusing, stirs evenly, forms alloy melt, temperature is controlled at 720 DEG C；
RJ-1 refining agents are added in into alloy melt, carry out refining treatment；The addition of refining agent is total for aluminium alloy melt
The 0.5% of weight；Then Al-10Sr alterants are added in into alloy melt and carries out Metamorphism treatment, addition is aluminium alloy melt
The 0.4% of total weight；
It will skim after the alloy melt degasification of Metamorphism treatment, then 20min stood at 720 DEG C, make the impurity in melt
Precipitation floats, and then pours into casting；
Casting is subjected to solution treatment and ageing treatment, solution treatment is the then quenching cooling when 540 DEG C of heat preservations 6 are small；
Ageing treatment be 160 DEG C heat preservation 6 it is small when, it is then air-cooled, high magnesium Al-Si casting alloys are made；
Product carries out tensile property test, tensile strength 276MPa, elongation percentage 4.9%；
Product composition is close with ZL101A cast aluminium alloy golds, and simply Mg contents have raising by a relatively large margin；It is marked according to country
The regulation of quasi- GB/T1173-2013, ZL101A cast aluminium alloy golds are under T5 states, tensile strength 265MPa, and elongation percentage is
4%；Mg contents are improved in this comparative example merely, the mechanical property of alloy is not made to be significantly improved.
Embodiment 1
Prepare aluminium ingot, magnesium ingot and 85 manganese agent (the aluminium alloy element additive containing 85%Mn)；Aluminium ingot is pre-alloyed aluminium ingot
356z.3；Raw material is as shown in table 2, and percentage is weight percentage；
Table 2
Aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled at 720 DEG C, and magnesium ingot and 85 manganese agent are added in aluminum melt,
It to whole melting sources, stirs evenly, forms alloy melt, temperature is controlled at 720 DEG C；
RJ-1 refining agents are added in into alloy melt, carry out refining treatment；The addition of refining agent is total for aluminium alloy melt
The 0.5% of weight；Then Al-10Sr alterants are added in into alloy melt and carries out Metamorphism treatment, addition is aluminium alloy melt
The 0.4% of total weight；
It will skim after the alloy melt degasification of Metamorphism treatment, then 20min stood at 720 DEG C, make the impurity in melt
Precipitation floats, and then pours into ingot casting；
Ingot casting is subjected to solution treatment and ageing treatment, solution treatment is the then quenching cooling when 540 DEG C of heat preservations 6 are small；
Ageing treatment be 160 DEG C heat preservation 6 it is small when, it is then air-cooled, the high magnesium Al-Si casting alloys of high manganese are made；Tensile strength 341MPa,
Elongation percentage 5.6%；
The content of Mg and Mn has raising by a relatively large margin, the mechanical property of alloy in the high high magnesium Al-Si casting alloys of manganese
It is significantly improved.
Embodiment 2
Prepare aluminium ingot, magnesium ingot, 85 manganese agent (the aluminium alloy element additive containing 85%Mn) and Al-3Be intermediate alloys；Aluminium ingot
For pre-alloyed aluminium ingot 356z.3；Raw material is as shown in table 3, and percentage is weight percentage；
Table 3
Aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled at 750 DEG C, by 85 manganese agent of magnesium ingot and Al-3Be intermediate alloys
It adds in aluminum melt, until after whole melting sources, stirs evenly, form alloy melt, temperature is controlled at 750 DEG C；
RJ-1 refining agents are added in into alloy melt, carry out refining treatment；The addition of refining agent is total for aluminium alloy melt
The 0.3% of weight；Then Al-10Sr alterants are added in into alloy melt and carries out Metamorphism treatment, addition is aluminium alloy melt
The 0.4% of total weight；Al-5Ti-B grain refiner crystal grain thinnings are added in into alloy melt, addition is total for aluminium alloy melt
The 0.1% of weight；
It will skim after the alloy melt degasification of Metamorphism treatment, then 15min stood at 750 DEG C, make the impurity in melt
Precipitation floats, and then pours into ingot casting；
Ingot casting is subjected to solution treatment and ageing treatment, solution treatment is when 560 DEG C of heat preservations 13 are small, is then quenched cold
But；Ageing treatment be 200 DEG C heat preservation 3 it is small when, it is then air-cooled, the high magnesium Al-Si casting alloys of high manganese are made；Tensile strength
362MPa, elongation percentage 5.2%；
Not only the content of Mg and Mn has raising by a relatively large margin in the present embodiment, but also is with the addition of Be；The mechanics of alloy
Performance is further enhanced.
Embodiment 3
Prepare aluminium ingot, magnesium ingot, 85 manganese agent (the aluminium alloy element additive containing 85%Mn) and Al-10Zr intermediate alloys；Aluminium
Ingot is pre-alloyed aluminium ingot 356z.3；Raw material is as shown in table 4, and percentage is weight percentage；
Table 4
Aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled at 750 DEG C, will be closed among magnesium ingot, 85 manganese agent and Al-10Zr
Gold is added in aluminum melt, until after whole melting sources, is stirred evenly, and forms alloy melt, and temperature is controlled at 730 DEG C；
RJ-1 refining agents are added in into alloy melt, carry out refining treatment；The addition of refining agent is total for aluminium alloy melt
The 0.7% of weight；Then Al-10Sr alterants are added in into alloy melt and carries out Metamorphism treatment, addition is aluminium alloy melt
The 0.2% of total weight；
It will skim after the alloy melt degasification of Metamorphism treatment, then 20min stood at 730 DEG C, make the impurity in melt
Precipitation floats, and then pours into ingot casting；
Ingot casting is subjected to solution treatment and ageing treatment, solution treatment is when 540 DEG C of heat preservations 20 are small, is then quenched cold
But；Ageing treatment be 180 DEG C heat preservation 10 it is small when, it is then air-cooled, the high magnesium Al-Si casting alloys of high manganese are made；Tensile strength
321MPa, elongation percentage 5.9%.
Embodiment 4
Prepare aluminium ingot, metallic silicon, magnesium ingot, zinc ingot metal and 85 manganese agent (the aluminium alloy element additive containing 85%Mn)；Aluminium ingot is
Pre-alloyed aluminium ingot 356z.3；Raw material is as shown in table 5, and percentage is weight percentage；
Table 5
Aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled at 720 DEG C, by metal silicon additive, magnesium ingot, zinc ingot metal and 85
Manganese agent is added in aluminum melt, until after whole melting sources, is stirred evenly, and forms alloy melt, and temperature is controlled at 720 DEG C；
RJ-1 refining agents are added in into alloy melt, carry out refining treatment；The addition of refining agent is total for aluminium alloy melt
The 0.4% of weight；Then Al-10Sr alterants are added in into alloy melt and carries out Metamorphism treatment, addition is aluminium alloy melt
The 0.3% of total weight；
It will skim after the alloy melt degasification of Metamorphism treatment, then 22min stood at 720 DEG C, make the impurity in melt
Precipitation floats, and then pours into ingot casting；
Ingot casting is subjected to solution treatment and ageing treatment, solution treatment is when 550 DEG C of heat preservations 12 are small, is then quenched cold
But；Ageing treatment be 190 DEG C heat preservation 10 it is small when, it is then air-cooled, the high magnesium Al-Si casting alloys of high manganese are made；Tensile strength
356MPa, elongation percentage 5.7%.
Embodiment 5
Prepare aluminium ingot, Al-30Si intermediate alloys, magnesium ingot, Al-10Cr intermediate alloys, the 85 titanium agent (aluminium alloys containing 85%Ti
Element additive) and 85 manganese agent (the aluminium alloy element additive containing 85%Mn)；Aluminium ingot is fine aluminium ingot Al99.70；Raw material such as table 6
Shown, percentage is weight percentage；
Table 6
Aluminium ingot heating fusing is formed into aluminum melt, temperature is controlled at 780 DEG C, by Al-30Si intermediate alloys, magnesium ingot, Al-
10Cr intermediate alloys, 85 titanium agent and 85 manganese agent are added in aluminum melt, until after whole melting sources, are stirred evenly, and are formed alloy and are melted
Body, temperature are controlled at 780 DEG C；
RJ-1 refining agents are added in into alloy melt, carry out refining treatment；The addition of refining agent is total for aluminium alloy melt
The 0.4% of weight；Then Al-10Sr alterants are added in into alloy melt and carries out Metamorphism treatment, addition is aluminium alloy melt
The 0.4% of total weight；Al-5Ti-B grain refiner crystal grain thinnings are added in into alloy melt, addition is total for aluminium alloy melt
The 0.2% of weight；
It will skim after the alloy melt degasification of Metamorphism treatment, then 18min stood at 780 DEG C, make the impurity in melt
Precipitation floats, and then pours into ingot casting；
Ingot casting is subjected to solution treatment and ageing treatment, solution treatment is when 530 DEG C of heat preservations 24 are small, is then quenched cold
But；Ageing treatment be 160 DEG C heat preservation 24 it is small when, it is then air-cooled, the high magnesium Al-Si casting alloys of high manganese are made；Tensile strength
366MPa, elongation percentage 5.8%.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (7)
1. a kind of high magnesium Al-Si casting alloys of high manganese, it is characterised in that ingredient contains Si 6.0~8.5%, Mg by weight percentage
0.65~1.5%, Mn 0.25~0.75%, Ti 0.08~0.25%, Be≤0.2%, Zn≤0.5%, Cr≤0.5%, Zr
≤ 0.5%, surplus is Al and impurity, in the impurity, Fe≤0.5%, and other impurity element total content≤1.0%.
2. a kind of high high magnesium Al-Si casting alloys of manganese according to claim 1, it is characterised in that the casting alloy it is preferred
Ingredient by weight percentage containing Si 6.5~7.5%, Mg 0.8~1.25%, Mn 0.35~0.55%, Ti 0.1~
0.25%th, Be≤0.1%, Zn≤0.5%, Cr≤0.5%, Zr≤0.5%, surplus is Al and impurity, in the impurity：Fe≤
0.5%；Other impurity element total content≤1.0%.
A kind of 3. high high magnesium Al-Si casting alloys of manganese according to claim 1, it is characterised in that the tension of the casting alloy
321~366MPa of intensity, elongation percentage 5.2~5.9%.
4. a kind of preparation method of the high high magnesium Al-Si casting alloys of manganese described in claim 1, it is characterised in that according to the following steps
It carries out：
(1) raw material is prepared by above-mentioned set component；The raw material is aluminium ingot, metal manganese additive, metal titanium additives, metal zirconium
Additive, alumal, aluminum titanium alloy, aluminium zircaloy, alusil alloy, aluminum chromium and/or aluminium beryllium alloy；
(2) aluminium ingot heating fusing being formed into aluminum melt, temperature is controlled at 700~800 DEG C, other raw materials are added in aluminum melt,
It to whole melting sources, stirs evenly, forms alloy melt, temperature is controlled at 700~800 DEG C；
(3) refining agent is added in into alloy melt and carries out refining treatment；Then into alloy melt add in Al-10Sr alterants into
Row Metamorphism treatment, addition are the 0.1~0.5% of aluminium alloy melt total weight；
(4) it will skim after the alloy melt degasification of Metamorphism treatment, then 15~25min stood at 700~800 DEG C, make melt
In contamination precipitation or floating, then pour into ingot casting；
(5) ingot casting is subjected to solution treatment and ageing treatment, the high magnesium Al-Si casting alloys of high manganese is made.
5. the preparation method of the high magnesium Al-Si casting alloys of high manganese according to claim 4, it is characterised in that the refining
RJ-1 refining agents are selected in agent, and the addition of refining agent is the 0.2~0.8% of aluminium alloy melt total weight.
6. the preparation method of the high magnesium Al-Si casting alloys of high manganese according to claim 4, it is characterised in that the solid solution
Processing is the then quenching cooling when 520~560 DEG C of heat preservations 3~30 are small.
7. the preparation method of the high magnesium Al-Si casting alloys of high manganese according to claim 4, it is characterised in that the timeliness
Processing be 150~200 DEG C heat preservation 3~30 it is small when, it is then air-cooled.
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| CN111690844A (en) * | 2020-07-08 | 2020-09-22 | 沈阳航空航天大学 | Eutectic Al-Fe-Mn-Si-Mg die casting alloy and preparation method and application thereof |
| CN111690849A (en) * | 2020-07-08 | 2020-09-22 | 沈阳航空航天大学 | Refining method of iron-rich phase in Al-Si series die-casting aluminum alloy and alloy |
| CN111876637A (en) * | 2020-07-08 | 2020-11-03 | 上海永茂泰汽车科技股份有限公司 | Heat-resistant and wear-resistant Al-Si-Cu-Ni aluminum alloy and preparation method and application thereof |
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| CN111690844B (en) * | 2020-07-08 | 2021-12-31 | 沈阳航空航天大学 | Eutectic Al-Fe-Mn-Si-Mg die casting alloy and preparation method and application thereof |
| CN111690849A (en) * | 2020-07-08 | 2020-09-22 | 沈阳航空航天大学 | Refining method of iron-rich phase in Al-Si series die-casting aluminum alloy and alloy |
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| CN111690844A (en) * | 2020-07-08 | 2020-09-22 | 沈阳航空航天大学 | Eutectic Al-Fe-Mn-Si-Mg die casting alloy and preparation method and application thereof |
| CN113699418A (en) * | 2021-09-01 | 2021-11-26 | 上海永茂泰汽车零部件有限公司 | High-elasticity modulus and high-plasticity aluminum-silicon casting alloy and preparation method and application thereof |
| CN113699418B (en) * | 2021-09-01 | 2022-07-12 | 上海永茂泰汽车零部件有限公司 | High-elasticity modulus and high-plasticity aluminum-silicon casting alloy and preparation method and application thereof |
| CN113846252A (en) * | 2021-09-16 | 2021-12-28 | 南通鸿劲金属铝业有限公司 | Preparation method of high-thermal-conductivity AlSi alloy |
| CN114427054A (en) * | 2022-01-20 | 2022-05-03 | 大连理工大学宁波研究院 | Aluminum alloy for high-speed train gear transmission system and manufacturing method thereof |
| CN115323208A (en) * | 2022-08-16 | 2022-11-11 | 沈阳创新合金有限公司 | Cast structural part with low hydrogen and low slag inclusion content and casting production method thereof |
| CN115323209A (en) * | 2022-08-16 | 2022-11-11 | 沈阳创新合金有限公司 | Casting process of ZL101A structural part |
| CN115786782A (en) * | 2022-12-07 | 2023-03-14 | 吉林大学 | Low-cost corrosion-resistant high-toughness cast aluminum-silicon alloy and preparation method thereof |
| CN115786782B (en) * | 2022-12-07 | 2024-01-26 | 吉林大学 | Low-cost corrosion-resistant high-strength and high-toughness cast aluminum-silicon alloy and preparation method thereof |
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