CN103966478A - Production technology for aluminium alloy casting rod special for automobile Peugeot hubs - Google Patents

Production technology for aluminium alloy casting rod special for automobile Peugeot hubs Download PDF

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Publication number
CN103966478A
CN103966478A CN201310051049.5A CN201310051049A CN103966478A CN 103966478 A CN103966478 A CN 103966478A CN 201310051049 A CN201310051049 A CN 201310051049A CN 103966478 A CN103966478 A CN 103966478A
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China
Prior art keywords
aluminium alloy
casting
standing
rod
furnace
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Pending
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CN201310051049.5A
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Chinese (zh)
Inventor
毛贻国
臧立根
甄跃军
张厚敏
蔡振斌
郭银河
王大龙
高海涛
杨明娟
花威
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Qinhuangdao Development Zone Aluminium Alloy Co Ltd
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Qinhuangdao Development Zone Aluminium Alloy Co Ltd
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Priority to CN201310051049.5A priority Critical patent/CN103966478A/en
Publication of CN103966478A publication Critical patent/CN103966478A/en
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Abstract

The invention relates to a production technology for an aluminium alloy casting rod special for automobile Peugeot hubs. The casting rod comprises the following compositions in percent by weight: 95.95-97.30% of Al, 0.8-1.3% of Si, 0.20-0.4% of Fe, 0.1% or less of Cu, 0.5-0.9% of Mn, 0.8-1.0% of Mg, 0.15% or less of Cr, 0.1% or less of Zn and 0.05-0.10% of Ti. The production technology comprises: weighing the compositions, placing in a melting furnace for melting with the melting temperature of 745 DEG C +/-5 DEG C, removing slag by employing a metallurgy slag-removing apparatus, so as to prepare an aluminium alloy melt; introducing the aluminium alloy melt into a standing furnace, adding a fluxing agent powder No. 2 for refining for 30 min, then standing the refined alloy aluminium melt in the standing furnace with the standing furnace temperature of 735 DEG C-745 DEG C for 30 min; performing molding casting on the aluminium alloy melt by employing a hot-top casting machine, so as to obtain an aluminium alloy casting rod; processing the casted aluminium alloy casting rod, and placing in a homogenization furnace to process for 12 h; transferring the aluminium alloy casting rod subjected to homogenization processing into a cooling chamber, and employing a blower fan to perform forced cooling, so as to prepare the aluminium alloy casting rod special for automobile Peugeot hubs.

Description

Beautiful automotive hub dedicated aluminium alloy casting rod production technique
Technical field
The present invention relates to beautiful automotive hub dedicated aluminium alloy casting rod production technique, relate to specifically be specifically designed to the production technology of the aluminium alloy cast rod of manufacturing Peugeot wheel hub, belong to aluminium alloy cast rod production technical field.
Background technology
Wheel hub is a vitals of automobile, and its quality directly has influence on performance and the aesthetic measure of automotive performance.The production technique of automotive hub, the performance requriements that it is taken turns to hub material is very strict, and the wheel hub of producing not only requires to have good rotoflector performance, but also must have good impelling strength and good wear resisting property etc.In recent years, the most of aluminum alloy materials that adopts of its wheel hub of high-grade automobile both domestic and external is made.
Automotive hub is generally to use aluminum alloy materials to make by pressure die casting method.The aluminium alloy wheel hub that this method is produced is disposable casting, does not reprocess, and metal texture does not change, and has the problem that mechanical property is lower.
Along with automobile industry improving constantly aluminium alloy wheel hub quality and requirement of strength, adopt aluminum alloy forged method to produce automotive hub technology and start to come into one's own, the automotive hub that the aluminium alloy wheel hub that pressure casting method is produced and reflectal casting rod are produced has very big difference in performance.The strength ratio of forged hub is higher, the good mechanical property of wheel hub, and therefore, a lot of high-grade automobile production enterprise all starts to select forged hub to produce automobile.
The beautiful automobile of France is one of well-known automobile brand in the world, in recent years, increasingly competitive along with automobile industry, requirement to automotive performance is more and more higher, in order to improve automotive performance, the manufacturer of the beautiful automobile of France upgrades to the wheel hub of beautiful automobile, on the basis of original aluminium alloy cast rod production technology, in order further to improve the intensity of aluminium alloy cast rod, corrosion resistance and fatigue resistance, reach the use safety coefficient and the quality grade that improve beautiful automotive hub, extend the automotive hub object in work-ing life, must research and develop a kind of new aluminum alloy cast rod production process, the needs of producing to meet beautiful automotive hub.
Summary of the invention
The object of the invention is for a kind of beautiful automotive hub dedicated aluminium alloy casting rod production technique is provided.Adopt this explained hereafter aluminium alloy cast rod out, have higher wear resisting property and good free cutting property, tensile strength, yield strength, unit elongation improve a lot; The aluminium alloy automobile hub that adopts this aluminium alloy cast rod to produce, lightweight, intensity is high, has higher erosion resistance and fatigue resistance simultaneously, can extend the long service life of automotive hub, improves the Performance and quality of automotive hub comprehensively.
In order to achieve the above object, the present invention adopts following technical scheme to realize.
Beautiful automotive hub dedicated aluminium alloy casting rod, its composition and weight percent thereof are as follows:
Al95.95~97.30%,Si0.8~1.3%,Fe0.2~0.4%,Cu≤0.1%,Mn0.5~0.9%,Mg0.8~1.0%,Cr≤0.15%,Zn≤0.1%,Ti0.05~0.10%;
The production technique of beautiful automotive hub dedicated aluminium alloy casting rod:
(1) melting
Composition Al95.95~97.30%, Si0.8~1.3%, Fe0.2~0.4%, Cu≤0.1%, Mn0.5~0.9%, Mg0.8~1.0%, Cr≤0.15%, Zn≤0.1%, Ti0.05~0.10% are placed to and in smelting furnace, carry out melting by described weight ratio, during storing, low melting point metal is placed in to the bottom of smelting furnace, refractory metal is placed in the upper strata of smelting furnace, smelting temperature is controlled in the scope of 745 ℃ ± 5 ℃, then use whipping appts that liquation is stirred, re-use metallurgical deslagging device and remove the gred, make molten aluminium alloy;
(2) refining, standing
Molten aluminium alloy in smelting furnace is imported in standing furnace, use argon gas or nitrogen that No. 2 ground fluxes are sprayed in molten aluminium alloy and carry out refining, the add-on of No. 2 ground fluxes is 1.5 ‰ of molten aluminium alloy weight; And then with argon gas or nitrogen refining 30 minutes, after refining process completes, re-use metallurgical deslagging device molten aluminium alloy is removed the gred; Then by the standing 30min in standing furnace of the molten aluminium alloy after refining, and by the temperature in standing furnace, remain between 735 ℃~745 ℃;
No. 2 described ground fluxes are by composition KCl, NaCl, CaCl 2, MgCl 2, BaCl 2mix, the weight percent of composition is KCl32~40%, NaCl≤8%, CaCl 2≤ 8%, MgCl 238~46%, BaCl 25~8%;
(3) casting
Above-mentioned molten aluminium alloy is carried out to shape casting by hot top formula casting machine, and on casting machine, adopt air-fuel mixture formula lubricating graphite loop technique, in the graphite annulus of crystallizer, add oil gas, carry out air-fuel mixture processing, the casting speed of casting machine is adjusted into 90~105mm/min; Like this, molten aluminium alloy can be cast as to aluminium alloy cast rod;
Adopt air-fuel mixture formula lubricating graphite ring to cast, between graphite annulus and aluminium liquid, can form oil gas film, oil gas film can stop contacting between aluminium liquid and graphite annulus.Due to oil gas film poor thermal conductivity, thereby aluminum melt is when through graphite annulus, can reduce the thickness of crystallizing layer, has solved the segregation knurl on aluminium alloy cast rod surface and the problem of segregation bed thickness, can make the gauge control of segregation layer in 0.2mm left and right, greatly improve the quality of aluminium alloy cast rod.
(4) homogenizing annealing is processed
Machining is carried out in the end of the aluminium alloy cast rod of casting and afterbody, and then aluminium alloy cast rod is inserted in the homogenizing stove that power is 800kw and carried out homogenizing processing, the temperature in homogenizing stove is controlled at 574 ℃, soaking time 12 hours;
(5) cooling
Aluminium alloy cast rod after homogenizing is processed proceeds to cooling room in stove, adopts blower fan to force cooling, and at previous hour, average rate of temperature fall was 4.5 ℃/min; After cooling process, make beautiful automotive hub dedicated aluminium alloy casting rod.
The present invention mainly has following beneficial effect:
1, adopt this explained hereafter aluminium alloy cast rod out, have higher wear resisting property and good free cutting property, tensile strength, yield strength, unit elongation improve a lot;
2, the aluminium alloy automobile hub that adopts this aluminium alloy cast rod to produce, lightweight, intensity is high, has higher erosion resistance and fatigue resistance simultaneously, can extend the work-ing life of automotive hub, improves the Performance and quality of automotive hub comprehensively.
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment
Embodiment
Beautiful automotive hub dedicated aluminium alloy casting rod, its composition and weight percent thereof are as follows:
Al95.95~97.30%,Si0.8~1.3%,Fe0.2~0.4%,Cu≤0.1%,Mn0.5~0.9%,Mg0.8~1.0%,Cr≤0.15%,Zn≤0.1%,Ti0.05~0.10%;
The production technique of beautiful automotive hub dedicated aluminium alloy casting rod:
(1) melting
By composition Al95.95~97.30%, Si0.8~1.3%, Fe0.20~0.4%, Cu≤0.1%, Mn0.5~0.9%, Mg0.8~1.0%, Cr≤0.15%, Zn≤0.1%, Ti0.05~0.10% is placed to and in smelting furnace, carries out melting by described weight ratio, during storing, low melting point metal is placed in to the bottom of smelting furnace, refractory metal is placed in the upper strata of smelting furnace, smelting temperature is controlled in the scope of 745 ℃ ± 5 ℃, then use whipping appts that molten aluminium alloy is stirred, re-using metallurgical deslagging device removes the gred, make molten aluminium alloy,
(2) refining, standing
Molten aluminium alloy in smelting furnace is imported in standing furnace, use argon gas or nitrogen that No. 2 ground fluxes are sprayed in molten aluminium alloy and carry out refining, the add-on of No. 2 ground fluxes is 1.5 ‰ of molten aluminium alloy weight; And then with argon gas or nitrogen refining 30 minutes, after refining process completes, re-use metallurgical deslagging device liquation is removed the gred; Then by the standing 30min in standing furnace of the molten aluminium alloy after refining, and by the temperature in standing furnace, remain between 735 ℃~745 ℃;
No. 2 described ground fluxes are by composition KCl, NaCl, CaCl 2, MgCl 2, BaCl 2mix, the weight percent of composition is KCl32~40%, NaCl≤8%, CaCl 2≤ 8%, MgCl 238~46%, BaCl 25~8%;
(3) casting
Above-mentioned molten aluminium alloy is carried out to shape casting by hot top formula casting machine, and on casting machine, adopt air-fuel mixture formula lubricating graphite loop technique, in the graphite annulus of crystallizer, add oil gas, carry out air-fuel mixture processing, the casting speed of casting machine is adjusted into 90~105mm/min; Like this, molten aluminium alloy can be cast as to aluminium alloy cast rod;
Adopt air-fuel mixture formula lubricating graphite ring to cast, between graphite annulus and aluminium liquid, can form oil gas film, oil gas film can stop contacting between aluminium liquid and graphite annulus.Due to oil gas film poor thermal conductivity, thereby aluminum melt is when through graphite annulus, can reduce the thickness of crystallizing layer, has solved the segregation knurl on aluminium alloy cast rod surface and the problem of segregation bed thickness, can make the gauge control of segregation layer in 0.2mm left and right, greatly improve the quality of aluminium alloy cast rod.
(4) homogenizing annealing is processed
Machining is carried out in the end of the aluminium alloy cast rod of casting and afterbody, and then aluminium alloy cast rod is inserted in the homogenizing stove that power is 800kw and carried out homogenizing processing, the temperature in homogenizing stove is controlled at 574 ℃, soaking time 12 hours;
(5) cooling
Aluminium alloy cast rod after homogenizing is processed proceeds to cooling room in stove, adopts blower fan to force cooling, and at previous hour, average rate of temperature fall was 4.5 ℃/min; After cooling process, make beautiful automotive hub dedicated aluminium alloy casting rod.

Claims (1)

1. a beautiful automotive hub dedicated aluminium alloy casting rod, is characterized in that: its composition and weight percent thereof are as follows:
A195.95~97.30%,Si0.8~1.3%,Fe0.20~0.4%,Cu≤0.1%,Mn0.5~0.9%,Mg0.8~1.0%,Cr≤0.15%,Zn≤0.1%,Ti0.05~0.10%;
The production technique of beautiful automotive hub dedicated aluminium alloy casting rod:
(1) melting
By composition Al95.95~97.30%, Si0.8~1.3%, Fe0.20~0.4%, Cu≤0.1%, Mn0.5~0.9%, Mg0.8~1.0%, Cr≤0.15%, Zn≤0.1%, Ti0.05~0.10% is placed to and in smelting furnace, carries out melting by described weight ratio, during storing, low melting point metal is placed in to the bottom of smelting furnace, refractory metal is placed in the upper strata of smelting furnace, smelting temperature is controlled in the scope of 745 ℃ ± 5 ℃, then use whipping appts that molten aluminium alloy is stirred, re-using metallurgical deslagging device removes the gred, make molten aluminium alloy,
(2) refining, standing
Molten aluminium alloy in smelting furnace is imported in standing furnace, use argon gas or nitrogen that No. 2 ground fluxes are sprayed in molten aluminium alloy and carry out refining, the add-on of No. 2 ground fluxes is 1.5 ‰ of aluminum alloy melt weight; And then with argon gas or nitrogen refining 30 minutes, after refining process completes, re-use metallurgical deslagging device liquation is removed the gred; Then by the standing 30min in standing furnace of the molten aluminium alloy after refining, and by the temperature in standing furnace, remain between 735 ℃~745 ℃;
No. 2 described ground fluxes are by composition KCl, NaCl, CaCl 2, MgCl 2, BaCl 2mix, the weight percent of composition is KCl32~40%, NaCl≤8%, CaCl 2≤ 8%, MgCl 238~46%, BaCl 25~8%;
(3) casting
Above-mentioned molten aluminium alloy is carried out to shape casting by hot top formula casting machine, and on casting machine, adopt air-fuel mixture formula lubricating graphite loop technique, in the graphite annulus of crystallizer, add oil gas, carry out air-fuel mixture processing, the casting speed of casting machine is adjusted into 90~105mm/min; Like this, molten aluminium alloy can be cast as to aluminium alloy cast rod;
(4) homogenizing annealing is processed
Machining is carried out in the end of the aluminium alloy cast rod of casting and afterbody, and then aluminium alloy cast rod is inserted in the homogenizing stove that power is 800kw and carried out homogenizing processing, the temperature in homogenizing stove is controlled at 574 ℃, soaking time 12 hours;
(5) cooling
Aluminium alloy cast rod after homogenizing is processed proceeds to cooling room in stove, adopts blower fan to force cooling, and at previous hour, average rate of temperature fall was 4.5 ℃/min; After cooling process, make beautiful automotive hub dedicated aluminium alloy casting rod.
CN201310051049.5A 2013-01-24 2013-01-24 Production technology for aluminium alloy casting rod special for automobile Peugeot hubs Pending CN103966478A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674083A (en) * 2015-03-10 2015-06-03 苏州圣谱拉新材料科技有限公司 Aluminum alloy material for hubs and preparation method of aluminum alloy material
CN105483472A (en) * 2015-12-18 2016-04-13 百色学院 Aluminum alloy ingot for casting hubs and preparation method of aluminum alloy ingot
CN105506412A (en) * 2015-12-18 2016-04-20 百色学院 Aluminum alloy casting rod for automobile hub and preparation method for aluminum alloy casting rod
CN105506411A (en) * 2015-12-18 2016-04-20 百色学院 Special aluminum alloy ingot for wheel hub and preparation method of aluminum alloy ingot
CN105525160A (en) * 2015-12-18 2016-04-27 百色学院 Aluminum alloy ingot for automobile hub and preparation method of aluminum alloy ingot
CN105695813A (en) * 2016-01-27 2016-06-22 广西平果铝合金精密铸件有限公司 Aluminum alloy ingot special for automobile hub and preparation method of aluminum alloy ingot
CN105695814A (en) * 2016-01-27 2016-06-22 广西平果铝合金精密铸件有限公司 Aluminum alloy ingot used for hub and preparation method of aluminum alloy ingot
CN105821262A (en) * 2016-03-28 2016-08-03 中国铁道科学研究院铁道建筑研究所 Sliding alloy material and alloy sliding structural component special for support and manufacturing method of alloy sliding structural component
CN107022703A (en) * 2017-04-27 2017-08-08 马鞍山常裕机械设备有限公司 A kind of automotive hub high-strength aluminum alloy material and its production technology
CN110079704A (en) * 2019-04-01 2019-08-02 华南理工大学 It is a kind of to regenerate wear-resisting wrought aluminium alloy and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102373352A (en) * 2010-08-07 2012-03-14 秦皇岛开发区美铝合金有限公司 Preparation method of forging aluminum alloy for wheel hub swaging
CN102477507A (en) * 2010-11-29 2012-05-30 秦皇岛开发区美铝合金有限公司 Preparation method of aluminum alloy casting rod special for hub of load truck

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102373352A (en) * 2010-08-07 2012-03-14 秦皇岛开发区美铝合金有限公司 Preparation method of forging aluminum alloy for wheel hub swaging
CN102477507A (en) * 2010-11-29 2012-05-30 秦皇岛开发区美铝合金有限公司 Preparation method of aluminum alloy casting rod special for hub of load truck

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674083A (en) * 2015-03-10 2015-06-03 苏州圣谱拉新材料科技有限公司 Aluminum alloy material for hubs and preparation method of aluminum alloy material
CN105483472A (en) * 2015-12-18 2016-04-13 百色学院 Aluminum alloy ingot for casting hubs and preparation method of aluminum alloy ingot
CN105506412A (en) * 2015-12-18 2016-04-20 百色学院 Aluminum alloy casting rod for automobile hub and preparation method for aluminum alloy casting rod
CN105506411A (en) * 2015-12-18 2016-04-20 百色学院 Special aluminum alloy ingot for wheel hub and preparation method of aluminum alloy ingot
CN105525160A (en) * 2015-12-18 2016-04-27 百色学院 Aluminum alloy ingot for automobile hub and preparation method of aluminum alloy ingot
CN105483472B (en) * 2015-12-18 2018-07-20 百色学院 A kind of casting hub aluminium alloy ingots and preparation method thereof
CN105695814A (en) * 2016-01-27 2016-06-22 广西平果铝合金精密铸件有限公司 Aluminum alloy ingot used for hub and preparation method of aluminum alloy ingot
CN105695813B (en) * 2016-01-27 2018-08-28 广西平果铝合金精密铸件有限公司 A kind of automotive hub dedicated aluminium alloy ingot and preparation method thereof
CN105695813A (en) * 2016-01-27 2016-06-22 广西平果铝合金精密铸件有限公司 Aluminum alloy ingot special for automobile hub and preparation method of aluminum alloy ingot
CN105821262A (en) * 2016-03-28 2016-08-03 中国铁道科学研究院铁道建筑研究所 Sliding alloy material and alloy sliding structural component special for support and manufacturing method of alloy sliding structural component
CN107022703A (en) * 2017-04-27 2017-08-08 马鞍山常裕机械设备有限公司 A kind of automotive hub high-strength aluminum alloy material and its production technology
CN110079704A (en) * 2019-04-01 2019-08-02 华南理工大学 It is a kind of to regenerate wear-resisting wrought aluminium alloy and preparation method thereof
CN110079704B (en) * 2019-04-01 2020-04-28 华南理工大学 Regenerated wear-resistant wrought aluminum alloy and preparation method thereof

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Application publication date: 20140806