CN109097644A - A method of for spindle high-strength aluminum alloy and its prepare spindle - Google Patents
A method of for spindle high-strength aluminum alloy and its prepare spindle Download PDFInfo
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- CN109097644A CN109097644A CN201811178064.5A CN201811178064A CN109097644A CN 109097644 A CN109097644 A CN 109097644A CN 201811178064 A CN201811178064 A CN 201811178064A CN 109097644 A CN109097644 A CN 109097644A
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
-
- 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- 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
- C22F1/047—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 of alloys with magnesium as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
- Continuous Casting (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a kind of high-strength aluminum alloys for spindle, the mass percent of element and each element in the aluminium alloy are as follows: Si 0.45-0.75%, Cu 0.15-0.35%, Mn≤0.05%, Mg 0.9-1.1%, Zn≤0.20%, Ti≤0.10%, Cr 0.04-0.35%, surplus Al.High-strength aluminum alloy of the present invention has many advantages, such as thermal conductivity, electric conductivity and good corrosion resistance, while having that light, intensity is high, energy conservation and environmental protection.
Description
Technical field
The present invention relates to aluminium alloy casting technology fields, close more particularly, to a kind of high-intensitive aluminium for spindle
Gold and its method for preparing spindle.
Background technique
Automobile also accelerates the process of fossil fuel exhaustion, exacerbates the deterioration of global climate while changing the world,
There is an urgent need to develop towards lightweight direction for present auto parts and components.Knuckle is as the important composition portion in automobile chassis suspension
Point, many brand automobile main engine plants all use aluminum alloy forged knuckle currently on the market, and aluminium alloy knuckle turns compared to steel
Xiang Jie, aluminium alloy knuckle weight are lighter；
Existing aluminium alloy knuckle main method is Aluminum alloy gravity permanent mold casting and two kinds of low pressure metal mold casting castings
Make method.Gravitational casting and low pressure casting the intensity that improves aluminium alloy knuckle and in terms of by certain limit
System, hinders the development of automotive light weight technology.For the comprehensive performance for widening aluminium alloy knuckle, need to existing aluminium alloy knuckle
Forging technology, aluminum alloy material etc. improve, while can accelerate production efficiency again, save the cost, this is aluminium alloy knuckle
Investigative technique personnel have technical problem to be solved.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the applicant provides a kind of for the high-strength of spindle
Degree aluminium alloy and its method for preparing spindle.High-strength aluminum alloy of the present invention has thermal conductivity, electric conductivity and corrosion-resistant
The good advantage of property, while having many advantages, such as that light, intensity is high, energy conservation and environmental protection.
Technical scheme is as follows:
A kind of high-strength aluminum alloy for spindle, the mass percent of element and each element in the aluminium alloy
Are as follows:
Si 0.45-0.75%, Cu 0.15-0.35%, Mn≤0.05%, Mg 0.9-1.1%, Zn≤0.20%, Ti≤
0.10%, Cr 0.04-0.35%, surplus Al.
A kind of spindle of high-strength aluminum alloy casting, the preparation method of the spindle include following step
It is rapid:
(1) metallic silicon is first thrown, aluminium ingot is then put into and is melted；Fusion temperature is controlled at 730-760 DEG C；Fusing time 3-
5 hours；
(2) argon gas is then opened, pressure is adjusted in 0.08-0.12Mpa；Refining 10-20 minutes is carried out to molten aluminum, surface
Dross clean out, analysis is sampled to molten aluminum；
(3) chromium agent and aluminium copper are added based on the analysis results；Stirring 10-15 minute, carries out second refining, when refining
Between be 15-20 minutes；The dross on surface is cleaned out, second of sampling analysis is carried out to molten aluminum；
(4) magnesium metal and titanium agent are added based on the analysis results, then progress third time refining, refining time 10-20 minutes,
The dross on surface is cleaned out, analysis is sampled to molten aluminum；
(5) after ingredient is qualified, argon pressure is adjusted to 0.08-0.12Mpa；Low pressure is carried out to molten aluminum and is vented 10-20
Minute, molten aluminum is 15-30 minutes static, prepares casting；
(6) casting starts preceding convective tank, mold carries out baking 60 minutes, and furnace is heated to 800-820 DEG C；Mould
Temperature is controlled at 690-720 DEG C；Water flow control casts out spindle in 1800ml/min, casting speed 50mm/min
Required aluminium alloy bar；
(7) it casts out and carrys out aluminium alloy bar and carry out the heat treatment that homogenizes, 520 DEG C of homogenizing temperature；Heat preservation 14 hours；Cooling side
Formula is Forced water cooling, allows Mg2Si, which is sufficiently precipitated, improves performance；
(8) ultrasonic examination is carried out after homogeneous, aluminium alloy bar inner inclusion is detected, and unqualified mark is cut off；
(9) be cut into short material to aluminium alloy bar carry out peeling processing, remove surface scale, outer diameter tolerance control ±
In 0.2mm, prepare subsequent extruding；
(10) aluminium alloy bar is warmed to 460 DEG C into heating furnace；Mold is heated to 420 DEG C；Squeeze out required bar stock；
(11) 420-440 DEG C is heated to by meshbeltfurnace after bar stock cutting；Forging press is put into be forged；
(12) forging stock after forging carries out trimming processing；
(13) the forging stock quenching treatment of trimming, 525 DEG C of hardening heat；Heat preservation enters cooling water after sixty minutes and is quickly cooled down；
(14) then ageing treatment, 175 DEG C of aging temp；Heat preservation 12 hours；
(15) product after timeliness machines into required knuckle.
The present invention is beneficial to be had the technical effect that
For the spindle of aluminium alloy preparation of the present invention compared with traditional plain cast iron knuckle, high-strength aluminum alloy is hard
The advantages that disk has thermal conductivity good, and good conductivity, good corrosion resistance, light-weight, intensity is high, energy conservation and environmental protection.
Specific embodiment
Below with reference to embodiment, the present invention is specifically described.
Embodiment 1
A kind of aluminium alloy for spindle high intensity, the mass percent of element and each element in the aluminium alloy
Are as follows: Si 0.45%, Cu 0.35%, Mn≤0.05%, Mg 1.1%, Zn 0.20%, Ti 0.05%, Cr 0.04%, remaining
Amount is Al；
The preparation method of the spindle of the high-strength aluminum alloy casting includes the following steps:
(1) metallic silicon is first thrown, aluminium ingot is then put into and is melted；Fusion temperature is controlled at 760 DEG C；Fusing time 3 hours；
(2) argon gas is then opened, pressure is adjusted in 0.12Mpa；Refining 10 minutes is carried out to molten aluminum, the dross surface is clear
Reason is clean, is sampled analysis to molten aluminum；
(3) chromium agent and aluminium copper are added based on the analysis results；Stirring 10 minutes carries out second and refines, refining time
It is 15 minutes；The dross on surface is cleaned out, second of sampling analysis is carried out to molten aluminum；
(4) magnesium metal and titanium agent are added based on the analysis results, then progress third time refining, refining time 10 minutes,
The dross on surface is cleaned out, and is sampled analysis to molten aluminum；
(5) after ingredient is qualified, argon pressure is adjusted to 0.12Mpa；It carries out low pressure to molten aluminum to be vented 10 minutes, molten aluminum
Static 30 minutes, prepare casting；
(6) casting starts preceding convective tank, mold carries out baking 60 minutes, and furnace is heated to 800 DEG C；Mould temperature
Control is at 690 DEG C；Water flow control casts out the conjunction of aluminium needed for spindle in 1800ml/min, casting speed 50mm/min
Golden bar；
(7) it casts out and carrys out aluminium alloy bar and carry out the heat treatment that homogenizes, 520 DEG C of homogenizing temperature；Heat preservation 14 hours；Cooling side
Formula is Forced water cooling, allows Mg2Si, which is sufficiently precipitated, improves performance；
(8) ultrasonic examination is carried out after homogeneous, aluminium alloy bar inner inclusion is detected, and unqualified mark is cut off；
(9) be cut into short material to aluminium alloy bar carry out peeling processing, remove surface scale, outer diameter tolerance control ±
In 0.2mm, prepare subsequent extruding；
(10) aluminium alloy bar is warmed to 460 DEG C into heating furnace；Mold is heated to 420 DEG C；Squeeze out required bar stock；
(11) 440 DEG C are heated to by meshbeltfurnace after bar stock cutting；Forging press is put into be forged；
(12) forging stock after forging carries out trimming processing；
(13) the forging stock quenching treatment of trimming, 525 DEG C of hardening heat；Heat preservation enters cooling water after sixty minutes and is quickly cooled down；
(14) then ageing treatment, 175 DEG C of aging temp；Heat preservation 12 hours；
(15) product after timeliness machines into required knuckle.
Embodiment 2
A kind of aluminium alloy for spindle high intensity, the mass percent of element and each element in the aluminium alloy
Are as follows: Si 0.75%, Cu 0.15%, Mn≤0.05%, Mg 1.0%, Zn 0.15%, Ti 0.05%, Cr 0.35%, remaining
Amount is Al；
The preparation method of the spindle of the high-strength aluminum alloy casting includes the following steps:
(1) metallic silicon is first thrown, aluminium ingot is then put into and is melted；Fusion temperature is controlled at 730 DEG C；Fusing time 5 hours；
(2) argon gas is then opened, pressure is adjusted in 0.08Mpa；Refining 20 minutes is carried out to molten aluminum, the dross surface is clear
Reason is clean, is sampled analysis to molten aluminum；
(3) chromium agent and aluminium copper are added based on the analysis results；Stirring 15 minutes carries out second and refines, refining time
It is 20 minutes；The dross on surface is cleaned out, second of sampling analysis is carried out to molten aluminum；
(4) magnesium metal and titanium agent are added based on the analysis results, then progress third time refining, refining time 20 minutes,
The dross on surface is cleaned out, and is sampled analysis to molten aluminum；
(5) after ingredient is qualified, argon pressure is adjusted to 0.08Mpa；It carries out low pressure to molten aluminum to be vented 20 minutes, molten aluminum
Static 15 minutes, prepare casting；
(6) casting starts preceding convective tank, mold carries out baking 60 minutes, and furnace is heated to 820 DEG C；Mould temperature
Control is at 700 DEG C；Water flow control casts out the conjunction of aluminium needed for spindle in 1800ml/min, casting speed 50mm/min
Golden bar；
(7) it casts out and carrys out aluminium alloy bar and carry out the heat treatment that homogenizes, 520 DEG C of homogenizing temperature；Heat preservation 14 hours；Cooling side
Formula is Forced water cooling, allows Mg2Si, which is sufficiently precipitated, improves performance；
(8) ultrasonic examination is carried out after homogeneous, aluminium alloy bar inner inclusion is detected, and unqualified mark is cut off；
(9) be cut into short material to aluminium alloy bar carry out peeling processing, remove surface scale, outer diameter tolerance control ±
In 0.2mm, prepare subsequent extruding；
(10) aluminium alloy bar is warmed to 460 DEG C into heating furnace；Mold is heated to 420 DEG C；Squeeze out required bar stock；
(11) 420 DEG C are heated to by meshbeltfurnace after bar stock cutting；Forging press is put into be forged；
(12) forging stock after forging carries out trimming processing；
(13) the forging stock quenching treatment of trimming, 525 DEG C of hardening heat；Heat preservation enters cooling water after sixty minutes and is quickly cooled down；
(14) then ageing treatment, 175 DEG C of aging temp；Heat preservation 12 hours；
(15) product after timeliness machines into required knuckle.
Embodiment 3
A kind of aluminium alloy for spindle high intensity, the mass percent of element and each element in the aluminium alloy
Are as follows: Si 0.60%, Cu 0.25%, Mn≤0.05%, Mg 0.9%, Zn 0.10%, Ti 0.10%, Cr 0.25%, remaining
Amount is Al；
The preparation method of the spindle of the high-strength aluminum alloy casting includes the following steps:
(1) metallic silicon is first thrown, aluminium ingot is then put into and is melted；Fusion temperature is controlled at 750 DEG C；Fusing time 4 hours；
(2) argon gas is then opened, pressure is adjusted in 0.10Mpa；Refining 15 minutes is carried out to molten aluminum, the dross surface is clear
Reason is clean, is sampled analysis to molten aluminum；
(3) chromium agent and aluminium copper are added based on the analysis results；Stirring 15 minutes carries out second and refines, refining time
It is 15 minutes；The dross on surface is cleaned out, second of sampling analysis is carried out to molten aluminum；
(4) magnesium metal and titanium agent are added based on the analysis results, then progress third time refining, refining time 15 minutes,
The dross on surface is cleaned out, and is sampled analysis to molten aluminum；
(5) after ingredient is qualified, argon pressure is adjusted to 0.10Mpa；It carries out low pressure to molten aluminum to be vented 15 minutes, molten aluminum
Static 20 minutes, prepare casting；
(6) casting starts preceding convective tank, mold carries out baking 60 minutes, and furnace is heated to 820 DEG C；Mould temperature
Control is at 690 DEG C；Water flow control casts out the conjunction of aluminium needed for spindle in 1800ml/min, casting speed 50mm/min
Golden bar；
(7) it casts out and carrys out aluminium alloy bar and carry out the heat treatment that homogenizes, 520 DEG C of homogenizing temperature；Heat preservation 14 hours；Cooling side
Formula is Forced water cooling, allows Mg2Si, which is sufficiently precipitated, improves performance；
(8) ultrasonic examination is carried out after homogeneous, aluminium alloy bar inner inclusion is detected, and unqualified mark is cut off；
(9) be cut into short material to aluminium alloy bar carry out peeling processing, remove surface scale, outer diameter tolerance control ±
In 0.2mm, prepare subsequent extruding；
(10) aluminium alloy bar is warmed to 460 DEG C into heating furnace；Mold is heated to 420 DEG C；Squeeze out required bar stock；
(11) 430 DEG C are heated to by meshbeltfurnace after bar stock cutting；Forging press is put into be forged；
(12) forging stock after forging carries out trimming processing；
(13) the forging stock quenching treatment of trimming, 525 DEG C of hardening heat；Heat preservation enters cooling water after sixty minutes and is quickly cooled down；
(14) then ageing treatment, 175 DEG C of aging temp；Heat preservation 12 hours；
(15) product after timeliness machines into required knuckle.
Knuckle obtained by Examples 1 to 3 is tested for the property, test result is as shown in table 1；
Table 1
| Project | Tensile strength (MPa) | Yield strength (MPa) | Elongation percentage (%) | Hardness (HB) |
| Embodiment 1 | 400 | 358 | 13.5 | 115 |
| Embodiment 2 | 402 | 362 | 13.2 | 117 |
| Embodiment 3 | 405 | 365 | 13 | 117 |
Claims (2)
1. a kind of high-strength aluminum alloy for spindle, which is characterized in that element and each element in the aluminium alloy
Mass percent are as follows:
Si 0.45-0.75%, Cu 0.15-0.35%, Mn≤0.05%, Mg 0.9-1.1%, Zn≤0.20%, Ti≤
0.10%, Cr 0.04-0.35%, surplus Al.
2. a kind of spindle of the casting of high-strength aluminum alloy described in claim 1, which is characterized in that the spindle
Preparation method include the following steps:
(1) metallic silicon is first thrown, aluminium ingot is then put into and is melted；Fusion temperature is controlled at 730-760 DEG C；Fusing time 3-5 is small
When；
(2) argon gas is then opened, pressure is adjusted in 0.08-0.12Mpa；Refining 10-20 minutes is carried out to molten aluminum, the floating of surface
Slag is cleaned out, and is sampled analysis to molten aluminum；
(3) chromium agent and aluminium copper are added based on the analysis results；Stirring 10-15 minutes carries out second and refines, and refining time is
15-20 minutes；The dross on surface is cleaned out, second of sampling analysis is carried out to molten aluminum；
(4) magnesium metal and titanium agent are added based on the analysis results, then progress third time refining, refining time 10-20 minutes, table
The dross in face is cleaned out, and is sampled analysis to molten aluminum；
(5) after ingredient is qualified, argon pressure is adjusted to 0.08-0.12Mpa；Low pressure is carried out to molten aluminum to be vented 10-20 minutes,
Molten aluminum is 15-30 minutes static, prepares casting；
(6) casting starts preceding convective tank, mold carries out baking 60 minutes, and furnace is heated to 800-820 DEG C；Mould temperature
Control is at 690-720 DEG C；Water flow control is cast out needed for spindle in 1800ml/min, casting speed 50mm/min
Aluminium alloy bar；
(7) it casts out and carrys out aluminium alloy bar and carry out the heat treatment that homogenizes, 520 DEG C of homogenizing temperature；Heat preservation 14 hours；The type of cooling is
Forced water cooling, allows Mg2Si, which is sufficiently precipitated, improves performance；
(8) ultrasonic examination is carried out after homogeneous, aluminium alloy bar inner inclusion is detected, and unqualified mark is cut off；
(9) be cut into short material to aluminium alloy bar carry out peeling processing, remove surface scale, outer diameter tolerance control ±
In 0.2mm, prepare subsequent extruding；
(10) aluminium alloy bar is warmed to 460 DEG C into heating furnace；Mold is heated to 420 DEG C；Squeeze out required bar stock；
(11) 420-440 DEG C is heated to by meshbeltfurnace after bar stock cutting；Forging press is put into be forged；
(12) forging stock after forging carries out trimming processing；
(13) the forging stock quenching treatment of trimming, 525 DEG C of hardening heat；Heat preservation enters cooling water after sixty minutes and is quickly cooled down；
(14) then ageing treatment, 175 DEG C of aging temp；Heat preservation 12 hours；
(15) product after timeliness machines into required knuckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178064.5A CN109097644A (en) | 2018-10-10 | 2018-10-10 | A method of for spindle high-strength aluminum alloy and its prepare spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178064.5A CN109097644A (en) | 2018-10-10 | 2018-10-10 | A method of for spindle high-strength aluminum alloy and its prepare spindle |
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|---|---|
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| CN201811178064.5A Pending CN109097644A (en) | 2018-10-10 | 2018-10-10 | A method of for spindle high-strength aluminum alloy and its prepare spindle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157961A (en) * | 2019-06-13 | 2019-08-23 | 江苏银奕达科技股份有限公司 | A kind of high-strength automotive anti-collision beam profile production technology |
| CN113122758A (en) * | 2021-03-16 | 2021-07-16 | 江阴沐祥节能装饰工程有限公司 | Off-road vehicle luggage rack aluminum profile and processing technology thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2072628A1 (en) * | 2007-12-19 | 2009-06-24 | Aleris Aluminum Bonn GmbH | High strength crash resistant aluminium alloy |
| US20140261909A1 (en) * | 2013-03-14 | 2014-09-18 | Super Alloy Industrial Co., Ltd. | High-strength aluminum-magnesium silicon alloy and manufacturing process thereof |
| CN104073689A (en) * | 2013-03-29 | 2014-10-01 | 株式会社神户制钢所 | Aluminum alloy forged material for automobile and method for manufacturing the same |
| CN107475585A (en) * | 2017-09-30 | 2017-12-15 | 江苏亚太安信达铝业有限公司 | A kind of high intensity hard disk aluminium alloy and preparation method thereof |
| CN107955893A (en) * | 2017-12-01 | 2018-04-24 | 宁波拓普汽车电子有限公司 | A kind of method for forging and molding of aluminium alloy knuckle |
| CN108165844A (en) * | 2017-12-25 | 2018-06-15 | 山东立中轻合金汽车材料有限公司 | A kind of wrought aluminium alloy ingot material and its production technology for liquid forging wheel |
-
2018
- 2018-10-10 CN CN201811178064.5A patent/CN109097644A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2072628A1 (en) * | 2007-12-19 | 2009-06-24 | Aleris Aluminum Bonn GmbH | High strength crash resistant aluminium alloy |
| US20140261909A1 (en) * | 2013-03-14 | 2014-09-18 | Super Alloy Industrial Co., Ltd. | High-strength aluminum-magnesium silicon alloy and manufacturing process thereof |
| CN104073689A (en) * | 2013-03-29 | 2014-10-01 | 株式会社神户制钢所 | Aluminum alloy forged material for automobile and method for manufacturing the same |
| CN107475585A (en) * | 2017-09-30 | 2017-12-15 | 江苏亚太安信达铝业有限公司 | A kind of high intensity hard disk aluminium alloy and preparation method thereof |
| CN107955893A (en) * | 2017-12-01 | 2018-04-24 | 宁波拓普汽车电子有限公司 | A kind of method for forging and molding of aluminium alloy knuckle |
| CN108165844A (en) * | 2017-12-25 | 2018-06-15 | 山东立中轻合金汽车材料有限公司 | A kind of wrought aluminium alloy ingot material and its production technology for liquid forging wheel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157961A (en) * | 2019-06-13 | 2019-08-23 | 江苏银奕达科技股份有限公司 | A kind of high-strength automotive anti-collision beam profile production technology |
| CN113122758A (en) * | 2021-03-16 | 2021-07-16 | 江阴沐祥节能装饰工程有限公司 | Off-road vehicle luggage rack aluminum profile and processing technology thereof |
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Application publication date: 20181228 |