CN102477505A - Aluminum alloy doped with strontium element and manufacturing method thereof - Google Patents

Aluminum alloy doped with strontium element and manufacturing method thereof Download PDF

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Publication number
CN102477505A
CN102477505A CN2010105659553A CN201010565955A CN102477505A CN 102477505 A CN102477505 A CN 102477505A CN 2010105659553 A CN2010105659553 A CN 2010105659553A CN 201010565955 A CN201010565955 A CN 201010565955A CN 102477505 A CN102477505 A CN 102477505A
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CN
China
Prior art keywords
strontium
alloy
silicon
mass percent
percent concentration
Prior art date
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Pending
Application number
CN2010105659553A
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Chinese (zh)
Inventor
徐宏
应伟勇
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SHANGHAI WANTAI ALUMINUM CO Ltd
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SHANGHAI WANTAI ALUMINUM CO Ltd
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Priority to CN2010105659553A priority Critical patent/CN102477505A/en
Publication of CN102477505A publication Critical patent/CN102477505A/en
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  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

The invention relates to the field of aluminum-based alloy with silicon as a secondary main component, in particular to strontium-doped aluminum-silicon-copper alloy and a manufacturing method thereof. The strontium doped aluminum-silicon-copper alloy comprises aluminum, silicon, copper, manganese and magnesium and is characterized in that: also comprises strontium, and the mass percent concentration of the strontium is 0.015-0.035%. The manufacturing method of the strontium-doped aluminum alloy comprises the following 5 steps of material mixing, melting, stirring, degassing and casting in sequence, and is characterized in that: the method also comprises adding the aluminum strontium alloy, wherein the adding of the aluminum strontium alloy is carried out between stirring and degassing, and the temperature of the aluminum liquid is controlled between 720 ℃ and 750 ℃ when the aluminum strontium alloy is added. The casting of the invention has refined crystal grains and high mechanical property.

Description

Support by the arm the duraluminum and the method for manufacture thereof of strontium element
Technical field
The present invention relates to silicon and do the aluminum base alloy field of time staple, be specially a kind of duraluminum and method of manufacture thereof of supporting by the arm strontium element.
Background technology
Duraluminum is with its light weight, corrosion resistant characteristic and be used widely at aviation, automotive field.Be applied as with cast aluminium alloy in the mechanical manufacturing field many, but present cast aluminium alloy, it is excessive also to exist behind the alloy graining crystal grain of material, metallographic structure is undesirable, influences the mechanical property of foundry goods.
Summary of the invention
In order to overcome the defective of prior art, a kind of cast aluminium alloy that contraction speed is fast, the foundry goods mechanical property is high is provided, the invention discloses a kind of duraluminum and method of manufacture thereof of supporting by the arm strontium element.
The present invention reaches goal of the invention through following technical scheme:
A kind of duraluminum of supporting by the arm strontium element comprises aluminium, silicon and copper, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 10.5~12
Copper 1.5~3.5
Magnesium 0~0.3
Zinc 0~1.0
Iron 0~1.3
Manganese 0~0.5
Nickel 0~0.5
Tin 0~0.3
Aluminium Surplus
It is characterized in that: also comprise strontium, the mass percent concentration of strontium is: 0.015%~0.035%.
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element comprises these 5 steps of batching, fusing, stirring, degasification and casting of carrying out successively, during batching, with silicon, copper, magnesium, zinc, iron, manganese, nickel, tin and aluminium in following ratio uniform mixing:
Component Mass percent concentration (%)
Silicon 10.5~12
Copper 1.5~3.5
Magnesium 0~0.3
Zinc 0~1.0
Iron 0~1.3
Manganese 0~0.5
Nickel 0~0.5
Tin 0~0.3
Aluminium Surplus
It is characterized in that: also comprise adding al-sr alloy, the mass percent concentration of strontium is 0.015%~0.035%, adds al-sr alloy and between stirring and degasification, carries out, and when adding al-sr alloy, the control temperature of aluminum liquid is between 720 ℃~750 ℃.
Described method of manufacture of supporting by the arm the duraluminum of strontium element is characterized in that: when adding al-sr alloy, the mass percent concentration of added its strontium of al-sr alloy is 8%~12%.
When the present invention used, these 6 steps in sequence of al-sr alloy, degasification and casting carried out making the duraluminum that contains strontium according to preparing burden, melt, stir, adding.The present invention makes the material metallographic structure become excellent through in duraluminum, adding an amount of strontium element with the refinement material grains, to improve the mechanical property of duraluminum, has especially strengthened fatigue resistance, can be used for automotive wheel.
Original aluminum alloy materials that does not contain strontium, when adopting die cast, tensile strength is 225N/mm 2, elongation is 2.0%, HB hardness is 85.The duraluminum that adopts the present invention to make, when adopting die cast, tensile strength is 256N/mm 2, having improved 13.8%, elongation is 2.57%, has improved 28.5%, HB hardness is 88, has improved 3.5%.
The invention has the beneficial effects as follows: the casting crystalline grain refinement, fatigue resistance is high, and mechanical property is high.
Embodiment
Below further specify the present invention through specific embodiment.
Embodiment 1
A kind of duraluminum of supporting by the arm strontium element comprises aluminium, silicon and copper, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 10.5
Copper 1.5
Strontium 0.015
Aluminium Surplus
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element comprises batching, the fusing carried out successively, stirs, adds these 6 steps of al-sr alloy, degasification and casting, during batching, with silicon, copper, strontium and aluminium in ratio uniform mixing shown in the last table; During fusing, with accomplish raw material after the batching at the stove internal heating to molten state; During stirring, stir aluminium liquid with splash bar; Add al-sr alloy constantly, the control temperature of aluminum liquid is at 720 ℃, and the mass percent concentration of added its strontium of al-sr alloy is 8%.
Embodiment 2
A kind of duraluminum of supporting by the arm strontium element comprises aluminium, silicon and copper, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 11
Copper 2.5
Strontium 0.025
Aluminium Surplus
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element; Comprise batching, the fusing carried out successively, stir, add these 6 steps of al-sr alloy, degasification and casting; Add al-sr alloy constantly, the control temperature of aluminum liquid is at 735 ℃, and the mass percent concentration of added its strontium of al-sr alloy is 10%.Other steps are all same with embodiment 1.
Embodiment 3
A kind of duraluminum of supporting by the arm strontium element comprises aluminium, silicon and copper, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 12
Copper 3.5
Strontium 0.035
Aluminium Surplus
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element; Comprise batching, the fusing carried out successively, stir, add these 6 steps of al-sr alloy, degasification and casting; Add al-sr alloy constantly, the control temperature of aluminum liquid is at 750 ℃, and the mass percent concentration of added its strontium of al-sr alloy is 12%.Other steps are all same with embodiment 1.
Embodiment 4
A kind of duraluminum of supporting by the arm strontium element comprises silicon, copper, magnesium, zinc, iron, manganese, nickel, tin, strontium and aluminium, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 10.5
Copper 1.5
Magnesium 0.01
Zinc 0.01
Iron 0.01
Manganese 0.01
Nickel 0.01
Tin 0.01
Strontium 0.015
Aluminium Surplus
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element; Comprise batching, the fusing carried out successively, stir, add these 6 steps of al-sr alloy, degasification and casting; During batching, with silicon, copper, magnesium, zinc, iron, manganese, nickel, tin, strontium and aluminium in ratio uniform mixing shown in the last table; Add al-sr alloy constantly, the control temperature of aluminum liquid is at 720 ℃, and the mass percent concentration of added its strontium of al-sr alloy is 8%.Other steps are all same with embodiment 1.
Embodiment 5
A kind of duraluminum of supporting by the arm strontium element comprises silicon, copper, magnesium, zinc, iron, manganese, nickel, tin, strontium and aluminium, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 11
Copper 2.5
Magnesium 0.15
Zinc 0.5
Iron 0.65
Manganese 0.25
Nickel 0.25
Tin 0.15
Strontium 0.025
Aluminium Surplus
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element; Comprise batching, the fusing carried out successively, stir, add these 6 steps of al-sr alloy, degasification and casting; Add al-sr alloy constantly, the control temperature of aluminum liquid is at 735 ℃, and the mass percent concentration of added its strontium of al-sr alloy is 8%.Other steps are all same with embodiment 4.
Embodiment 6
A kind of duraluminum of supporting by the arm strontium element comprises silicon, copper, magnesium, zinc, iron, manganese, nickel, tin, strontium and aluminium, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%)
Silicon 12
Copper 3.5
Magnesium 0.3
Zinc 1.0
Iron 1.3
Manganese 0.5
Nickel 0.5
Tin 0.3
Strontium 0.035
Aluminium Surplus
A kind of method of manufacture of supporting by the arm the duraluminum of strontium element; Comprise batching, the fusing carried out successively, stir, add these 6 steps of al-sr alloy, degasification and casting; Add al-sr alloy constantly, the control temperature of aluminum liquid is at 750 ℃, and the mass percent concentration of added its strontium of al-sr alloy is 12%.Other steps are all same with embodiment 4.

Claims (3)

1. a duraluminum of supporting by the arm strontium element comprises aluminium, silicon and copper, and the mass percent concentration of each component is respectively:
Component Mass percent concentration (%) Silicon 10.5~12 Copper 1.5~3.5 Magnesium 0~0.3 Zinc 0~1.0 Iron 0~1.3 Manganese 0~0.5 Nickel 0~0.5 Tin 0~0.3 Aluminium Surplus
It is characterized in that: also comprise strontium, the mass percent concentration of strontium is 0.015%~0.035%.
2. a method of manufacture of supporting by the arm the duraluminum of strontium element comprises these 5 steps of batching, fusing, stirring, degasification and casting of carrying out successively, during batching, with silicon, copper, magnesium, zinc, iron, manganese, nickel, tin and aluminium in following ratio uniform mixing:
Component Mass percent concentration (%) Silicon 10.5~12 Copper 1.5~3.5 Magnesium 0~0.3 Zinc 0~1.0 Iron 0~1.3 Manganese 0~0.5 Nickel 0~0.5 Tin 0~0.3 Aluminium Surplus
It is characterized in that: also comprise adding al-sr alloy, the mass percent concentration of strontium is 0.015%~0.035%, adds al-sr alloy and between stirring and degasification, carries out, and when adding al-sr alloy, the control temperature of aluminum liquid is between 720 ℃~750 ℃.
3. method of manufacture of supporting by the arm the duraluminum of strontium element as claimed in claim 2 is characterized in that: when adding al-sr alloy, the mass percent concentration of added its strontium of al-sr alloy is 8%~12%.
CN2010105659553A 2010-11-30 2010-11-30 Aluminum alloy doped with strontium element and manufacturing method thereof Pending CN102477505A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102485927A (en) * 2010-12-01 2012-06-06 上海万泰铝业有限公司 Strontium doped Al-Si-Cu alloy and manufacture method thereof
CN102676862A (en) * 2012-05-31 2012-09-19 无锡格莱德科技有限公司 Process for manufacturing aluminum alloy ingot
CN102994823A (en) * 2012-11-20 2013-03-27 无锡常安通用金属制品有限公司 Aluminium alloy structural material
CN109338177A (en) * 2018-11-13 2019-02-15 苏州仓松金属制品有限公司 A kind of rotten aluminum alloy materials of AlSi10Mg system and its rotten production technology
CN109423564A (en) * 2017-08-28 2019-03-05 昭和电工株式会社 Magnetic recording media aluminium alloy base plate, magnetic recording media substrate, magnetic recording media and hard disk drive

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1410572A (en) * 2002-10-01 2003-04-16 西南铝业(集团)有限责任公司 High silicon cast aluminium spectrum standard sample and its preparation method
CN101392340A (en) * 2008-11-14 2009-03-25 周岳健 Method for producing water meter case by cast aluminum alloy and products thereof
WO2009132388A1 (en) * 2008-04-30 2009-11-05 Commonwealth Scientific And Industrial Research Organisation Improved aluminium based casting alloy
CN100577835C (en) * 2008-01-16 2010-01-06 无锡海特铝业有限公司 A kind of method of producing high-silicon aluminum alloy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1410572A (en) * 2002-10-01 2003-04-16 西南铝业(集团)有限责任公司 High silicon cast aluminium spectrum standard sample and its preparation method
CN100577835C (en) * 2008-01-16 2010-01-06 无锡海特铝业有限公司 A kind of method of producing high-silicon aluminum alloy
WO2009132388A1 (en) * 2008-04-30 2009-11-05 Commonwealth Scientific And Industrial Research Organisation Improved aluminium based casting alloy
CN101392340A (en) * 2008-11-14 2009-03-25 周岳健 Method for producing water meter case by cast aluminum alloy and products thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102485927A (en) * 2010-12-01 2012-06-06 上海万泰铝业有限公司 Strontium doped Al-Si-Cu alloy and manufacture method thereof
CN102676862A (en) * 2012-05-31 2012-09-19 无锡格莱德科技有限公司 Process for manufacturing aluminum alloy ingot
CN102994823A (en) * 2012-11-20 2013-03-27 无锡常安通用金属制品有限公司 Aluminium alloy structural material
CN102994823B (en) * 2012-11-20 2015-12-02 江苏高博智融科技有限公司 A kind of Aluminium alloy structural material
CN109423564A (en) * 2017-08-28 2019-03-05 昭和电工株式会社 Magnetic recording media aluminium alloy base plate, magnetic recording media substrate, magnetic recording media and hard disk drive
CN109338177A (en) * 2018-11-13 2019-02-15 苏州仓松金属制品有限公司 A kind of rotten aluminum alloy materials of AlSi10Mg system and its rotten production technology

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Application publication date: 20120530