CN103774000A - Special forging aluminum alloy material for forged rotary wheel hubs and preparation method thereof - Google Patents
Special forging aluminum alloy material for forged rotary wheel hubs and preparation method thereof Download PDFInfo
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- CN103774000A CN103774000A CN201410010375.6A CN201410010375A CN103774000A CN 103774000 A CN103774000 A CN 103774000A CN 201410010375 A CN201410010375 A CN 201410010375A CN 103774000 A CN103774000 A CN 103774000A
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Abstract
The invention relates to a special forging aluminum alloy material for forged rotary wheel hubs, which contains the following chemical components in percentage by mass: 4.2-4.5% of silicon, 1.2-1.5% of magnesium, 1.2-1.5% of iron, 1.2-1.5% of manganese, 0.12-0.16% of Er, 0.08-0.10% of Nd and the balance of aluminum. The aluminum alloy has the advantages of refined grain, high strength, favorable wear resistance, favorable corrosion resistance and favorable casting and forging properties, and is suitable for manufacturing forged rotary wheel hubs; the prepared wheel hub has the advantages of smooth and fine surface, thin wall, light weight and high strength (30% higher than that of a casting method); by reasonably controlling the after-casting treatment temperature and feeding the alloy elements in batches, the alloy has uniform crystal and high strength; and by using part of scrap aluminum as the raw material, the alloy quality is more stable and uniform. When the refining agent is used for casting production, the porosity in the casting can be lowered by 1-2 degrees, the oxide inclusion content is Grade 2 or so, and the yield is high.
Description
Technical field
The present invention relates to aluminum alloy materials field, relate in particular to a kind of special reflectal material of hub bolt and preparation method thereof of forging.
Background technology
The quality of wheel and reliability quality are not only closely related with the safety of vehicle, and with automobile stationarity, comfortableness, safety operation close relation under steam.Thereby require the size and dimension precision of wheel high, and good dynamic balance, fatigue strength is high, perfect heat-dissipating, rigidity and good springiness.Along with the development of automobile, the class of automobile is become better and better, and car speed is more and more faster, and individual requirement is also more and more higher, so also more and more higher to the requirement of automotive hub.
Widely used in China's automobile is conventional aluminium wheel hub, is the entirety forming with die casting, and the shape of product is single, change parameter and the shape of wheel and must change mould; And what conventional cast wheel hub adopted is A356-2 aluminium, A356-2 aluminium, its stability and thermal diffusivity are also poor, and quality is also heavier simultaneously.
In order to solve the problems of the technologies described above, on market, occurred a kind of three-plate aluminum alloy forged hub now, so-called three-chip type wheel hub, is that wheel hub is resolved into anter, middle and rear panel, and then it is combined into a complete wheel hub, but it can meet again the basic parameter of all wheel hubs.This wheel hub is all far superior to conventional cast wheel hub from intensity, quality, thermal diffusivity and profile.
Normal 6 series (aluminium, magnesium, silicon) alloy material that adopts of above-mentioned three-plate aluminum alloy forged hub is produced, but due to the ductility of 6 series (aluminium, magnesium, silicon) alloy material itself not enough, make the retractility of the three-plate aluminum alloy forged hub after producing and automatically fatigue recovery function also do not reach requirement.
Also there are some problems with aluminium alloy in China's wheel hub, as insufficient strength, weight are large, unstable etc. the problem of limited, the casting quality of poor processability, poor radiation, rotten treatment effect, needs further to improve the over-all properties of wheel hub aluminium alloy.
Summary of the invention
The object of the present invention is to provide a kind of special reflectal material of hub bolt and preparation method thereof of forging, this aluminum alloy materials has advantages of that high strength, forgeability are good.
Technical scheme of the present invention is as follows:
A kind of special reflectal material of hub bolt of forging, is characterized in that: chemical element composition and mass percent thereof that it contains are: silicon 4.2-4.5, magnesium 1.2-1.5, iron 1.2-1.5, manganese 1.2-1.5, Er0.12-0.16, Nd0.08-0.10, surplus are aluminium.
The production method of the described special reflectal material of forging hub bolt, is characterized in that:
(1), preparing fine aluminium ingot and aluminium scrap originates as aluminum matrix in 1:0.4-0.7 ratio, fine aluminium ingot is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add aluminium scrap fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) magnesium, Er; (2) silicon; (3) other remaining components; The each batch of timed interval of dropping into element is 20-23 minute, after feeding intake, stirs.
Described casting postheat treatment is: be first warming up to 260-270 ℃ by room temperature with 200-220 ℃/h of speed, insulation 30-40 minute, be warming up to 420-430 ℃ with 200-220 ℃/h of speed again, insulation 30-40 minute, be warming up to 540-560 ℃ with 200-220 ℃/h of speed again, insulation 6-7 hour; Be cooled to 100-120 ℃ with 70-80 ℃ of clear water, then naturally cool to room temperature; Be warming up to 150-160 ℃ with 200-220 ℃/h of speed again, insulation 3-4 hour, takes out air cooling and get final product.
Described refining agent is made up of the raw material of following weight part: aluminium powder 10-12, silicon-dioxide 8-12, attapulgite 8-12, feldspar in powder 5-8, aluminium vanadine 3-4, medical stone 3-4, lapis amiridis 3-4, aluminium nitride 5-6, trees ashes 1-2, Starso 2-3, Calcium Fluoride (Fluorspan) 3-5; Its preparation method is that silicon-dioxide, attapulgite, feldspar in powder, medical stone, aluminium vanadine, trees ashes are mixed, be heated to 1600-1800 ℃, stir 1-2 hour, after cooling, be added in the hydrochloric acid soln of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
Beneficial effect of the present invention
Aluminum grain refinement of the present invention, makes that alloy strength is high and wear resistance is good, good corrosion resistance, and casting and forgeability good, be applicable to make and forge hub bolt, the hub surface making is smoothly careful, and wheel hub wall is thin and lightweight, the strength of materials is the highest, more than becoming than castmethod Senior Three; Aluminium alloy of the present invention, by rationally controlling casting post-processing temperature, is thrown in alloying element in batches, makes alloy crystallization even, and intensity is high, and using part aluminium scrap is raw material, makes more stable uniform of alloy quality.Refining agent of the present invention, for Foundry Production, can make the degree of porosity in foundry goods reduce 1-2 degree, and oxide inclusion is 2 grades of left and right, and yield rate is high.
Embodiment
A kind of special reflectal material of hub bolt of forging, chemical element composition and mass percent thereof that it contains are: silicon 4.2-4.5, magnesium 1.2-1.5, iron 1.2-1.5, manganese 1.2-1.5, Er0.12-0.16, Nd0.08-0.10, surplus are aluminium.
The production method of the described special reflectal material of forging hub bolt is:
(1), preparing fine aluminium ingot and aluminium scrap originates as aluminum matrix in 1:0.5 ratio, fine aluminium ingot is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add aluminium scrap fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) magnesium, Er; (2) silicon; (3) other remaining components; The each batch of timed interval of dropping into element is 22 minutes, after feeding intake, stirs.
Described casting postheat treatment is: be first warming up to 265 ℃ by room temperature with 210 ℃/h of speed, be incubated 35 minutes, then be warming up to 425 ℃ with 210 ℃/h of speed, be incubated 35 minutes, then be warming up to 550 ℃ with 210 ℃/h of speed, be incubated 6.5 hours; Be cooled to 110 ℃ with 75 ℃ of clear water, then naturally cool to room temperature; Be warming up to 155 ℃ with 210 ℃/h of speed again, be incubated 3.5 hours, take out air cooling and get final product.
Described refining agent by following weight part (kilogram) raw material make: aluminium powder 10, silicon-dioxide 8, attapulgite 8, feldspar in powder 5, aluminium vanadine 4, medical stone 4, lapis amiridis 3, aluminium nitride 5, trees ashes 1, Starso 2, Calcium Fluoride (Fluorspan) 5; Its preparation method is that silicon-dioxide, attapulgite, feldspar in powder, medical stone, aluminium vanadine, trees ashes are mixed, be heated to 1600-1800 ℃, stir 1-2 hour, after cooling, be added in the hydrochloric acid soln of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
The present embodiment is forged the special reflectal material of hub bolt after tested, and under room temperature, tensile strength б b is 300Mpa, and the tensile strength under 315 ℃ of conditions is 190MPa, yield strength 265MPa, and hardness value HB is 87, unit elongation δ 5 is 15%.
Claims (3)
1. forge the special reflectal material of hub bolt, it is characterized in that: chemical element composition and mass percent thereof that it contains are: silicon 4.2-4.5, magnesium 1.2-1.5, iron 1.2-1.5, manganese 1.2-1.5, Er0.12-0.16, Nd0.08-0.10, surplus are aluminium.
2. the production method of the special reflectal material of forging hub bolt according to claim 1, is characterized in that:
(1), preparing fine aluminium ingot and aluminium scrap originates as aluminum matrix in 1:0.4-0.7 ratio, fine aluminium ingot is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add aluminium scrap fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) magnesium, Er; (2) silicon; (3) other remaining components; The each batch of timed interval of dropping into element is 20-23 minute, after feeding intake, stirs.
3. the production method of the special reflectal material of forging hub bolt according to claim 2, it is characterized in that: described casting postheat treatment is: be first warming up to 260-270 ℃ by room temperature with 200-220 ℃/h of speed, insulation 30-40 minute, be warming up to 420-430 ℃ with 200-220 ℃/h of speed again, insulation 30-40 minute, be warming up to 540-560 ℃ with 200-220 ℃/h of speed again, insulation 6-7 hour; Be cooled to 100-120 ℃ with 70-80 ℃ of clear water, then naturally cool to room temperature; Be warming up to 150-160 ℃ with 200-220 ℃/h of speed again, insulation 3-4 hour, takes out air cooling and get final product.
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| CN201410010375.6A CN103774000A (en) | 2014-01-09 | 2014-01-09 | Special forging aluminum alloy material for forged rotary wheel hubs and preparation method thereof |
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| CN201410010375.6A CN103774000A (en) | 2014-01-09 | 2014-01-09 | Special forging aluminum alloy material for forged rotary wheel hubs and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604218A (en) * | 2017-09-23 | 2018-01-19 | 安徽福斯特铝制品股份有限公司 | A kind of forging method of aluminium alloy wheel hub |
| WO2019139724A1 (en) * | 2018-01-12 | 2019-07-18 | Accuride Corporation | Aluminum wheels and methods of manufacture |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365379A (en) * | 2009-03-31 | 2012-02-29 | 日立金属株式会社 | Al-Mg-Si-type aluminum alloy for casting which has excellent bearing force, and casted member comprising same |
| CN102363211A (en) * | 2011-10-10 | 2012-02-29 | 陈伟军 | Extrusion casting method for aluminum alloy automobile speed changing box shell |
-
2014
- 2014-01-09 CN CN201410010375.6A patent/CN103774000A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365379A (en) * | 2009-03-31 | 2012-02-29 | 日立金属株式会社 | Al-Mg-Si-type aluminum alloy for casting which has excellent bearing force, and casted member comprising same |
| CN102363211A (en) * | 2011-10-10 | 2012-02-29 | 陈伟军 | Extrusion casting method for aluminum alloy automobile speed changing box shell |
Non-Patent Citations (1)
| Title |
|---|
| 饶启昌等: "耐磨材料热处理问题的探讨", 《水利电力机械》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604218A (en) * | 2017-09-23 | 2018-01-19 | 安徽福斯特铝制品股份有限公司 | A kind of forging method of aluminium alloy wheel hub |
| WO2019139724A1 (en) * | 2018-01-12 | 2019-07-18 | Accuride Corporation | Aluminum wheels and methods of manufacture |
| US10646914B2 (en) | 2018-01-12 | 2020-05-12 | Accuride Corporation | Aluminum alloys for applications such as wheels and methods of manufacture |
| US11420249B2 (en) | 2018-01-12 | 2022-08-23 | Accuride Corporation | Aluminum wheels and methods of manufacture |
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Application publication date: 20140507 |