CN108677070A - A kind of hypereutectic aluminum alloy materials - Google Patents
A kind of hypereutectic aluminum alloy materials Download PDFInfo
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- CN108677070A CN108677070A CN201810495327.9A CN201810495327A CN108677070A CN 108677070 A CN108677070 A CN 108677070A CN 201810495327 A CN201810495327 A CN 201810495327A CN 108677070 A CN108677070 A CN 108677070A
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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Abstract
This application discloses a kind of hypereutectic aluminum alloy materials, the formula of hypereutectic aluminum alloy materials includes Cu4.2% 5%, Si16.2% 17.95%, Mn0 0.45%, Mg0.65% 0.8%, Ti0 0.25%, Fe0 1.1%, Ni0 0.28%, Zn0 1.4%, Na0 50ppm, Ca0 50ppm, Al and inevitable impurities balance.Hypereutectic aluminum alloy materials of the present invention have the advantages that formula is scientific and reasonable, intensity is good, wearability is strong as a result,.
Description
Technical field
The present invention relates to aluminum alloy materials more particularly to a kind of hypereutectic aluminum alloy materials.
Background technology
Requirement based on automotive light weight technology in recent years, for more and more auto parts gradually by steel, iron is changed to aluminium, magnesium, modeling
The light materials such as material substitute, wherein by aluminium for steel, iron becomes the main direction of development of automotive light weight technology, and due to cost, efficiency,
Performance etc. considers, and more and more using the part of die cast at present, design of part becomes increasingly complex, diecasting alloys material
Also from conventional hypoeutectic Al-Si-Cu systems (ADC12, A380) or eutectic Al-Si system (Yl102) alloy to special alloy material
Material development, as hypereutectic Al-Si-Cu systems (ADC14, A390) are also gradually widely used in diecast parts.Hypereutectic Al-Si-
Alloy the features such as due to small with coefficient of thermal expansion, density is low, and wear-resisting and high-temperature behavior is good, and casting character is excellent, be it is high-strength,
It is wear-resisting, low bulk part such as piston of automobile, cylinder block, clutch gear, the reason of the core components such as car air conditioning compressor slanting plate
Think material.But without the alloy of Metamorphism treatment, primary silicon is existed with en plaque, has seriously been isolated matrix, has been made machine
Tool performance significantly reduces；Combination between plate and plate is very weak, causes processing performance poor, loses use value.In addition
Production cycle is long, cost input is high, in order to keep the intrinsic advantages of Al-Si alloys, and can make mechanical property, elongation percentage and processing
Performance increases substantially, it is necessary to Al-Si alloys be improved and be optimized, wearability is good, high performance-price ratio to reach, further
Meet the needs of client, the more preferably economic and social profit of generation.
Invention content
It is an object of the invention to provide a kind of hypereutectic aluminum alloy materials, solve one in above-mentioned prior art problem or
It is multiple.
A kind of hypereutectic aluminum alloy materials are provided according to the present invention, according to matching for the hypereutectic aluminum alloy materials of weight percent
Side includes
Cu4.2%-5%,
Si16.2%-17.95%,
Mn0-0.45%,
Ti0-0.25%,
Mg0.65%-0.8%,
Fe0-1.1%,
Ni0-0.28%,
Zn0-1.4%,
Na0-50ppm、
Ca0-50ppm、
Al and inevitable impurities balance.
Wherein, the preparation method of the hypereutectic aluminum alloy materials includes the following steps：
Step 1 is stocked up, and the percentage of each ingredient prepares raw material in the formula according to hypereutectic aluminum alloy materials；
Step 2 melts, and raw material is poured into the melting that heats up in smelting furnace, temperature is 660 DEG C -700 DEG C, is sufficiently formed aluminium
Molten aluminum body in smelting furnace is then transferred in alloying furnace by liquid, and temperature rises to 800 DEG C -850 DEG C, sequentially adds Cu, Si, Mn, Mg
Alloying element, the uniform stirring 10min after cmpletely melting, temperature remains unchanged in whipping process, does not stay dead angle；
Step 3, for the first time slagging-off degasification, by Control for Kiln Temperature to 760 DEG C -800 DEG C, using conche by flux and liquid nitrogen
It uniformly discharges into alloying furnace, keeps 15-20min；
Step 4 takes off removing dross, and furnace temperature is risen to 800 DEG C -850 DEG C, AlP alterants are added, keeps 20- by Metamorphism treatment
30min；
Step 5, second of slagging-off degasification, it is using conche that flux is equal with liquid nitrogen by Control for Kiln Temperature to 760 DEG C -800 DEG C
It is even to discharge into alloying furnace, 15-20min is kept,
Step 6 takes off removing dross, closes fire door, carries out stewing process, and time of repose is controlled in 20-40min；
Al-5Ti-0.8B-0.2C is added by Control for Kiln Temperature to 800 DEG C -850 DEG C in step 7, micronization processes, keep 20-
30min；
The online degassing processing of step 8, GBF, strictly controls rotating speed and argon pressure, then carries out ingot casting, stringent to control
Into distributor temperature of aluminum liquid, hypereutectic aluminum alloy materials are obtained.
Wherein, the raw material are aluminium alloy scrap.
Further, additive amounts of the AlP in molten aluminum per ton is 10-15kg in the step 4.
Further, additive amounts of the Al-5Ti-0.8B-0.2C in molten aluminum per ton is 10-15kg in the step 7.
Further, the GBF online processings in ingot casting are to carry out online degasification, Ar Pressure to the molten aluminum of tundish using argon gas
Power is 0.2-0.3MPa, high-purity argon gas of the purity 99.999% or more, rotor speed 450-480rpm.
Further, it is 780 DEG C -820 DEG C that distributor temperature of aluminum liquid is entered in the online degassing processings of GBF.
Hypereutectic aluminum alloy materials of the present invention have formula reasonable, and production process is environmentally friendly, very using regeneration
Aluminium produces, and reduces resource consumption, cost-effective, while hypereutectic aluminum alloy materials of the present invention also have intensity good, resistance to
The strong feature of mill property.
Specific implementation mode
A kind of hypereutectic aluminum alloy materials, the formula according to the hypereutectic aluminum alloy materials of weight percent include
Cu4.2%-5%,
Si16.2%-17.95%,
Mn0-0.45%,
Ti0-0.25%,
Mg0.65%-0.8%,
Fe0-1.1%,
Ni0-0.28%,
Zn0-1.4%,
Na0-50ppm、
Ca0-50ppm、
Al and inevitable impurities balance.
Wherein, the preparation method of the hypereutectic aluminum alloy materials includes the following steps：
Step 1 is stocked up, and the percentage of each ingredient prepares raw material in the formula according to hypereutectic aluminum alloy materials；
Step 2 melts, and raw material is poured into the melting that heats up in smelting furnace, temperature is 660 DEG C -700 DEG C, is sufficiently formed aluminium
Molten aluminum body in smelting furnace is then transferred in alloying furnace by liquid, and temperature rises to 800 DEG C -850 DEG C, sequentially adds Cu, Si, Mn, Mg
Alloying element, the uniform stirring 10min after cmpletely melting, temperature remains unchanged in whipping process, does not stay dead angle；
Step 3, for the first time slagging-off degasification, by Control for Kiln Temperature to 760 DEG C -800 DEG C, using conche by flux and liquid nitrogen
It uniformly discharges into alloying furnace, keeps 15-20min；
Step 4 takes off removing dross, and furnace temperature is risen to 800 DEG C -850 DEG C, AlP alterants are added, keeps 20- by Metamorphism treatment
The additive amount of 30min, AlP in molten aluminum per ton is 10-15kg；
Step 5, second of slagging-off degasification, it is using conche that flux is equal with liquid nitrogen by Control for Kiln Temperature to 760 DEG C -800 DEG C
It is even to discharge into alloying furnace, 15-20min is kept,
Step 6 takes off removing dross, closes fire door, carries out stewing process, and time of repose is controlled in 20-40min；
Al-5Ti-0.8B-0.2C is added by Control for Kiln Temperature to 800 DEG C -850 DEG C in step 7, micronization processes, keep 20-
The additive amount of 30min, Al-5Ti-0.8B-0.2C in molten aluminum per ton is 10-15kg；
The online degassing processing of step 8, GBF carries out online degasification using argon gas to the molten aluminum of tundish, and argon pressure is
0.2-0.3MPa, high-purity argon gas of the purity 99.999% or more, rotor speed 450-480rpm then carry out ingot casting, control
System enters distributor temperature of aluminum liquid between 780 DEG C -820 DEG C, obtains hypereutectic aluminum alloy materials.
Wherein, raw material are aluminium alloy scrap.
It is closed according to the hypereutectic aluminium that the formula and preparation method of above-mentioned hypereutectic aluminum alloy materials are prepared
Golden material goes wherein six pieces of aluminium alloy HJ-C1919 to be detected at random if hypereutectic aluminum alloy materials code name is HJ-C1919,
Six block numbers are the degree of each component in aluminium alloy HJ-C1919 as shown in the following examples 1 to embodiment 6.
Embodiment 1
The degree of a kind of hypereutectic aluminum alloy materials, each component wherein included is respectively
Cu4.55%,
Si16.89%,
Mn0.25%,
Ti0.05%,
Mg0.72%,
Fe0.75%,
Ni0.05%,
Zn0.75%,
Na5ppm、
Ca15ppm、
Al and inevitable impurities balance.
Embodiment 2
The degree of a kind of hypereutectic aluminum alloy materials, each component wherein included is respectively
Cu4.52%,
Si16.75%,
Mn0.27%,
Ti0.04%,
Mg0.72%,
Fe0.73%,
Ni0.05%,
Zn0.65%,
Na12ppm、
Ca21ppm、
Al and inevitable impurities balance.
Embodiment 3
The degree of a kind of hypereutectic aluminum alloy materials, each component wherein included is respectively
Cu4.53%,
Si16.89%,
Mn0.35%,
Ti0.06%,
Mg0.75%,
Fe0.65%,
Ni0.06%,
Zn0.85%,
Na6ppm、
Ca15ppm、
Al and inevitable impurities balance.
Embodiment 4
A kind of hypereutectic aluminum alloy materials, the degree of each component wherein included are respectively to include
Cu4.49%,
Si17.25%,
Mn0.15%,
Ti0.05%,
Mg0.74%,
Fe0.8%,
Ni0.06%,
Zn0.9%,
Na10ppm、
Ca22ppm、
Al and inevitable impurities balance.
Embodiment 5
The degree of a kind of hypereutectic aluminum alloy materials, each component wherein included is respectively
Cu4.56%,
Si17.3%,
Mn0.24%,
Ti0.06%,
Mg0.74%,
Fe0.65%,
Ni0.05%,
Zn0.76%,
Na8ppm、
Ca16ppm、
Al and inevitable impurities balance.
Embodiment 6
The degree of a kind of hypereutectic aluminum alloy materials, each component wherein included is respectively
Cu4.59%,
Si17.16%,
Mn0.32%,
Ti0.06%,
Mg0.75%,
Fe0.81%,
Ni0.07%,
Zn0.9%,
Na7ppm、
Ca12ppm、
Al and inevitable impurities balance.
Aluminium alloy HJ-C1919 compares the hypereutectic aluminum alloy materials also good, wearability with intensity with aluminium alloy ADC14
Strong feature.
The identical aluminium alloy HJ-C1919 of 50 pieces of aliquots, shape and aluminium alloy ADC14 is taken to carry out wear weight loss pair respectively
Than experiment, experimental result is as shown in table 1 below.
Table 1
The above is only one embodiment of the present invention, it is noted that those skilled in the art,
Without departing from the concept of the premise of the invention, several similar modification and improvement can also be made, these also should be regarded as this
Within the protection domain of invention.
Claims (6)
1. a kind of hypereutectic aluminum alloy materials, it is characterised in that：In formula according to the hypereutectic aluminum alloy materials of weight percent
Including
Cu4.2%-5%,
Si16.2%-17.95%,
Mn0-0.45%,
Ti0-0.25%,
Mg0.65%-0.8%,
Fe0-1.1%,
Ni0-0.28%,
Zn0-1.4%,
Na0-50ppm、
Ca0-50ppm、
Al and inevitable impurities balance.
2. a kind of hypereutectic aluminum alloy materials according to claim 1, which is characterized in that the hypereutectic aluminum alloy materials
Preparation method include the following steps：
Step 1 is stocked up, and the percentage of each ingredient prepares raw material in the formula according to hypereutectic aluminum alloy materials；
Step 2 melts, and raw material is poured into the melting that heats up in smelting furnace, temperature is 660 DEG C -700 DEG C, is sufficiently formed molten aluminum, connects
It and molten aluminum body in smelting furnace is transferred in alloying furnace, temperature rises to 800 DEG C -850 DEG C, sequentially adds Cu, Si, Mn, Mg alloy member
Element, the uniform stirring 10min after cmpletely melting, temperature remains unchanged in whipping process；
Step 3, for the first time slagging-off degasification, it is using conche that flux is uniform with liquid nitrogen by Control for Kiln Temperature to 760 DEG C -800 DEG C
It discharges into alloying furnace, keeps 15-20min；
Step 4 takes off removing dross, and furnace temperature is risen to 800 DEG C -850 DEG C, AlP alterants are added, keeps 20-30min by Metamorphism treatment；
Step 5, second of slagging-off degasification are uniformly arranged flux with liquid nitrogen using conche by Control for Kiln Temperature to 760 DEG C -800 DEG C
Into in alloying furnace, 15-20min is kept,
Step 6 takes off removing dross, closes fire door, carries out stewing process, and time of repose is controlled in 20-40min；
Al-5Ti-0.8B-0.2C is added by Control for Kiln Temperature to 800 DEG C -850 DEG C in step 7, micronization processes, keep 20-
30min；
The online degassing processing of step 8, GBF, strictly controls rotating speed and argon pressure, then carries out ingot casting, and stringent control enters
Distributor temperature of aluminum liquid obtains hypereutectic aluminum alloy materials.
3. a kind of hypereutectic aluminum alloy materials according to claim 2, it is characterised in that：AlP is per ton in the step 4
Additive amount in molten aluminum is 10-15kg.
4. a kind of hypereutectic aluminum alloy materials according to claim 2, it is characterised in that：Al-5Ti- in the step 7
Additive amounts of the 0.8B-0.2C in molten aluminum per ton is 10-15kg.
5. a kind of hypereutectic aluminum alloy materials according to claim 2, it is characterised in that：GBF online processings in ingot casting
It is that online degasification is carried out to the molten aluminum of tundish using argon gas, argon pressure 0.2-0.3MPa, purity is 99.999% or more
High-purity argon gas, rotor speed 450-480rpm.
6. a kind of hypereutectic aluminum alloy materials according to claim 2, it is characterised in that：In the online degassing processings of GBF into
It is 780 DEG C -820 DEG C to enter distributor temperature of aluminum liquid.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111575553A (en) * | 2020-06-03 | 2020-08-25 | 南通鸿劲金属铝业有限公司 | Preparation process of high-thermal-conductivity eutectic aluminum alloy material |
| CN111690850A (en) * | 2020-07-15 | 2020-09-22 | 南通鸿劲金属铝业有限公司 | Preparation process of cast aluminum alloy with high yield strength |
| CN114752825A (en) * | 2022-03-23 | 2022-07-15 | 南通鸿劲金属铝业有限公司 | High-hardness wear-resistant aluminum alloy material and preparation method thereof |
| DE102021133596B3 (en) | 2021-11-05 | 2023-03-30 | GM Global Technology Operations LLC | Method for eliminating microstructure inheritance of hypereutectic aluminium-silicon alloys |
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Application publication date: 20181019 |