CN107052304A - A kind of method for producing aluminum alloy control arm - Google Patents
A kind of method for producing aluminum alloy control arm Download PDFInfo
- Publication number
- CN107052304A CN107052304A CN201710008581.7A CN201710008581A CN107052304A CN 107052304 A CN107052304 A CN 107052304A CN 201710008581 A CN201710008581 A CN 201710008581A CN 107052304 A CN107052304 A CN 107052304A
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- casting
- control arm
- mould
- holding furnace
- pressure
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
- B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention provides a kind of method for producing aluminum alloy control arm, and described method includes step and provides ZL 101 alloy, aluminum alloy melts, matched moulds die casting, fill type cooling, shed pressure, quench.It is an advantage of the method for the invention that this aluminium alloy irs control arm counter-pressure casting production technology, can produce complicated, minimum wall thickness (MINI W.) is not less than 4mm irs control arm, can effectively meet the light-weighted control arm batch production of structure optimization.The aluminum alloy control arm of this casting technique production is lighter by 30% -40% than ironcasting control arm, and force of gravity casting and low pressure casting aluminum alloy control arm performance improve 15% -20%.
Description
Technical field
The present invention relates to casting technology field, more particularly to a kind of method for producing aluminum alloy control arm.
Background technology
Automobile suspension system is the important assembly on Hyundai Motor, is had very to ride of vehicle and control stability
Big influence.
Control arm is as the guiding and force transfer element of automobile suspension system, and the various power that will act on wheel pass to car
Body, while ensureing that wheel is moved by certain track.Control arm respectively connects wheel and flexible chassis by ball pivot or bushing
It is connected together.The reason for because of the above, control arm, while bushing and ball cup including being attached thereto should have enough rigidity,
Intensity and service life.
Control arm and lower control arm before automobile control arm is divided into, preceding control arm is guide and the support of suspension, and it deforms meeting
The positioning of wheel is had influence on, roadability is reduced；Lower control arm main function is, for supporting vehicle body, damper and to buffer
Vibrations in traveling.The tacit agreement of lower control arm and damper and spring coordinates could a set of outstanding suspension assembly system of structure poplar.
It is main at present to use Ductile Iron Casting technique productions, the high-end vapour in part for the complex part of this curved surface of irs control arm
Car can close the techniques such as forging, gravitational casting or aluminum alloy low-pressure casting using aluminium and be produced.Ductile Iron Casting technique productions
Irs control arm weight is laid particular stress on, and is consumed energy in production process larger, and surface needs to carry out application antirust treatment etc., and this has not met
Current automobile energy-saving, emission reduction, lightweight development trend；And aluminum alloy forged irs control arm, due to its forging technology feature,
It is suitable for simple structure, the simple control arm production of moulding so seriously constrains the modeling structure optimization of control arm, it is impossible to reach
To the optimization of structure；The characteristics of control arm that gravitational casting and low pressure casting are produced is due to its production technology, it is impossible to obtain compared with
High material mechanical performance, therefore can not also meet the requirement of current automotive light weight technology.
The content of the invention
It is therefore an object of the present invention to provide a kind of method for producing aluminum alloy control arm.
Such as without other explanation, " content " of the invention refers both to mass fraction.For example, " Fe contents refer to less than 0.15% "
The mass fraction of Fe elements in the alloy is less than 0.15%.
There is provided a kind of method for producing aluminum alloy control arm, described method bag in one aspect of the invention
Include following step：(A) Fe contents in ZL 101 alloy, described ZL 101 alloy are provided and are less than 0.15wt.%, Mg contents
In 0.38%-0.45wt.%；(B) ZL 101 alloy of step (A) is melted, the dry cooking-pot type that aluminium liquid is placed in into casting machine is incubated
In stove, and poured into a mould between 700 DEG C -730 DEG C；(C) after casting machine matched moulds, drying is passed through in Warming machine and mould room
Compressed air is pressurized to 0.2MPa-0.6MPa, and then mould room stops supercharging and pressure is kept, and is further continued in holding furnace according to setting
The pressure curve put continues to be pressurized with speed per second 4mbar-20mbar, and the aluminium liquid in holding furnace is slowly filled into control arm
In Metallic Casting Die ＆ Mold die cavity；(D) when filling type and completing, each branch road cooling water is opened in mold cores, and cooling water temperature is 18 DEG C-
22 DEG C, control arm mould is quickly cooled down with speed per minute 6L-9L, and keep the pressure in holding furnace；(E) unload
Remove mould room, the pressure of dry pot holding furnace (1) and the closed cavity of resorption of casting machine median septum (4) formation；And (F) mould chamber opening,
Mould is molded, and takes out casting；Casting is quickly immersed afterwards in 30 DEG C -45 DEG C of water and cooled down, complete the Foundry Production of control arm.
In currently preferred aspect, before step (B), the mould of casting is preheated to 300 DEG C -350 DEG C.
In currently preferred aspect, in step (B), when the temperature of aluminium liquid is less than 700 DEG C or higher than 730 DEG C,
Alarm and stop pouring into a mould work.
In currently preferred aspect, in step (B), holding furnace is located at below casting machine central dividing plate, control arm casting
Modeling tool is located above casting machine central dividing plate, and holding furnace is connected by stalk with mould.
In currently preferred aspect, in step (B), control arm mould is carried out to preheat before die casting, preheating temperature is
300℃-350℃。
In currently preferred aspect, in step (B), when die casting starts, mould room die cavity and holding furnace, up and down two
Individual spatial domain is pressurized to 0.2MPa-0.6MPa simultaneously, and then mould room stops continuing to be pressurized in supercharging and pressurize, holding furnace, so that
So that aluminium liquid is flowed into mold cavity through stalk in holding furnace.
In currently preferred aspect, in step (E), after cooling is opened after 50s-80s, mould room and holding furnace internal pressure
Power pressure release simultaneously so that equal no pressure is present in mould room and holding furnace.
In currently preferred aspect, in step (E), cooling is opened after 50-80S, the pressure release of mould room, dry pot holding furnace
(1) the closed lower cavity pressure with casting machine median septum (4) formation is then continued to, after 150s-220s is opened in cooling, crucible heat insulation
Stove (1) and the closed cavity of resorption pressure release of casting machine median septum (4) formation.
In currently preferred aspect, in step (F), taken out in casting to during entering water, casting transfer time is not
More than 30s.
The scheme that the present invention is used also includes：Using ZL101 alloys, the strict Fe content controlled in alloy and containing for Mg
Amount, it is desirable to which Fe contents are less than 0.15%, Mg contents 0.38% -0.45%；The pouring temperature of strict control aluminium liquid is 700
Between DEG C -730 DEG C, in press casting procedure, aluminium liquid is placed in the dry cooking-pot type holding furnace of casting machine, aluminium liquid is connected in real time
Continuous monitoring, aluminium liquid is too low or too high, more than temperature control bound, it may appear that alarm, equipment can not carry out die casting work；Will control
Arm metal die is preheated to 300 DEG C -350 DEG C, is placed in the closed mould room of casting machine；Holding furnace, which is located in casting machine, to be spaced
Below plate, control arm casting mould is located above casting machine central dividing plate, and holding furnace is connected by stalk with mould；Casting
After machine matched moulds, 0.2MPa -0.6MPa is pressurized to using drying compressed air simultaneously in holding furnace, mould room, then mould room is stopped
Only supercharging and pressure is kept, be further continued in holding furnace according to the pressure curve of setting with speed per second 4mbar -20mbar after
Continuous supercharging, the aluminium liquid in holding furnace is slowly filled into control arm Metallic Casting Die ＆ Mold die cavity；When filling type completion, mold cores
Interior each branch road cooling water is opened, and cooling water temperature is 18 DEG C -22 DEG C, and control arm mould is entered with speed per minute 6L -9L
The quick cooling of row, the open and close time of each branch road cooling water is different, and by adjusting this time, mould is cooled down,
To play a part of cooling down control arm casting indirectly, and cause control arm control in the way of a kind of consecutive solidification from top to bottom
Solidification；When filling type completion, pressure may proceed to keep in holding furnace, and the aluminium liquid in holding furnace is under pressure through stalk to mould
Have die cavity and feeding aluminium liquid is provided, so that control arm casting there are enough aluminium liquid fillings in process of setting, prevent casting from pouring
It is not enough；After cooling is opened after 50s-80s, mould room and the pressure release simultaneously of insulation furnace pressure so that in mould room and holding furnace
No pressure is present；Rear mold chamber opening, mould die sinking, take out casting；In the water that casting is quickly immersed to 30 DEG C -45 DEG C afterwards
Cooling, completes the Foundry Production of control arm, is taken out in casting to during entering water, and casting transfer time is no more than 30s, to ensure
Casting does not have excessive temperature loss, from without influenceing cast-internal grain structure.
The preferred aspect of the present invention, is the content and Mg content for strictly controlling the Fe in alloy, it is desirable to Fe contents
Less than 0.15%, Mg contents 0.38% -0.45%；
Another preferred aspect of the present invention, is that aluminium liquid is strict controlled between 700 DEG C -730 DEG C in holding furnace, and right
Temperature of aluminum liquid carries out real-time continuous monitoring, and transfiniting to alarm；
The present invention another preferred aspect, be will control arm mould carry out die casting before preheat, preheating temperature be 300 DEG C-
350 DEG C, mould preheating can make it that scalding the mould time shortens, and makes mould reach a temperature field in a balanced way in a short time, improves
Casting production efficiency, and die trial aluminium liquid is saved, reduce waste product；
Another preferred aspect of the present invention, when being that die casting starts, mould room die cavity and holding furnace, two spatial domains are same up and down
When be pressurized to 0.2Mpa -0.6Mpa, then mould room stops supercharging and pressurize, continues in holding furnace to be pressurized, so that insulation
Aluminium liquid is flowed into mold cavity through stalk in stove；, can be effective under the synergy of mould chamber pressure and holding furnace pressure
Ground control aluminium liquid fills type flowing velocity, and then controls the speed of aluminum liquid filling type；
Another preferred aspect of the present invention, is that after aluminum liquid filling type is full of, each road cooling water is opened, now, in holding furnace
Pressure continues to keep, and can so give and scorching hot feeding aluminium liquid is provided in mould room so that control arm casting reaches good fill
Type effect, while so that control arm cast-internal dense structure, reduces casting defect；
Another preferred aspect of the present invention, is the open and close time by controlling each road cooling water, to control mould
The cooldown rate in each portion of core, process of setting that is near and controlling casting, reaching makes the purpose of control arm casting consecutive solidification；
Another preferred aspect of the present invention, is after casting takes out, quickly to be cooled down in the water for being immersed in 30 DEG C -45 DEG C, casts
Part, which is fetched into, to be immersed in the water, and transfer time must not play 30s.
It is an advantage of the current invention that this aluminium alloy irs control arm counter-pressure casting production technology, can produce structure and answer
Miscellaneous, minimum wall thickness (MINI W.) is not less than 4mm irs control arm, and the light-weighted control arm batch that can effectively meet structure optimization is raw
Production, while in the casting process of control arm, by controlling Fe and Mg content effectively to improve the mechanical property of control arm
Energy；By control arm mould installion in the closed mold room with pressure, can be controlled effectively casting filling velocity,
Freezing pressure, reduces the internal flaw of casting, obtains fine and close cast sturcture；The aluminum alloy control arm of this casting technique production
It is lighter by 30% -40% than ironcasting control arm, force of gravity casting and low pressure casting aluminum alloy control arm performance improve 15% -
20%.
The invention provides a kind of automobile control arm aluminium alloy counter-pressure casting process, it is characterised in that can produce knot
Structure is complicated, and minimum wall thickness (MINI W.) is not less than 4mm irs control arm, can effectively meet the light-weighted control arm batch of structure optimization
Amount production, while in the casting process of control arm, by controlling Fe and Mg content effectively to improve the power of control arm
Learn performance；By the way that by control arm mould installion, in the closed mold room with pressure, can effectively control casting fills type
Speed, freezing pressure, reduce the internal flaw of casting, obtain fine and close cast sturcture；The aluminium alloy of this casting technique production
Control arm is compared with ironcasting control arm, and weight wants light 30% -40%, is controlled with gravitational casting and low pressure casting aluminum alloy
Arm compares, and its performance improves 15% -20%.
The method of the present invention can realize complex model structure, high material mechanical performance, light-weighted batch production demand.
Brief description of the drawings
Hereinafter, embodiment of the present invention is described in detail with reference to accompanying drawing, wherein：
Fig. 1：The Casting Equipment used in the method for embodiments of the invention 1；
Fig. 2：One three-dimensional view of the control arm product that the method for embodiments of the invention 1 is produced；
Fig. 3：Another three-dimensional view for the control arm product that the method for embodiments of the invention 1 is produced；
In figure：1- holding furnaces, 2-ZL101 aluminium liquids, 3- stalks, 4- casting machines median septum, 5- control arms casting mould, 6- moulds
Have seal closure, 7- casting machine upper platens.
Embodiment
Embodiment 1
Illustrate details and working condition according to specific device proposed by the present invention below in conjunction with the accompanying drawings：
In practical work process, ZL101 aluminium liquids (2) are in crucible heat insulation stove (1), in control aluminium liquid (2) chemical composition
Fe contents be less than 0.15%, Mg contents in 0.38%-0.45%, the pouring temperatures of control ZL101 aluminium liquids (2) 700 DEG C-
730℃；Crucible heat insulation stove is arranged on below casting machine median septum (4), and control arm casting mould (5) is arranged on casting machine median septum (4)
Top, crucible heat insulation stove (1) and the closed cavity of resorption of casting machine median septum (4) formation, mould seal closure (6), casting machine median septum (4) and casting
The closed mould room of machine upper platen (7) formation, control arm casting mould (5) is in mould room, control arm casting mould (5) with
Crucible heat insulation stove (1) is connected by stalk (3), and control arm casting mould (5) is preheated to after 300 DEG C -350 DEG C, casting machine matched moulds,
The closed cavity of resorption of crucible heat insulation stove (1) and casting machine median septum (4) formation, and closed mould room is same using drying compressed air
When be pressurized to 0.2Mpa-0.6Mpa, then mould room stops supercharging, and it is close that crucible heat insulation stove (1) and casting machine median septum (4) are formed
Close cavity of resorption to continue to be pressurized with speed per second 4mbar-20mbar according to the pressure curve pre-set, by crucible heat insulation stove (1)
In ZL101 aluminium liquids (2) be slowly filled into control arm casting mould (5), complete filling after, mould water cooling open, cooling
Coolant-temperature gage is 18-22 DEG C, and control arm casting mould (5) is quickly cooled down with speed per minute 6L-9L, passes through adjustment
The open and close time of every cooling water, reaching makes the purpose of casting consecutive solidification；Cooling is opened after 50-80S, and mould room is let out
Pressure, dry pot holding furnace (1) is then continued to the closed lower cavity pressure that casting machine median septum (4) is formed, and 150s- is opened in cooling
After 220s, the closed cavity of resorption pressure release of crucible heat insulation stove (1) and casting machine median septum (4) formation, then mould chamber opening, control arm casting
Modeling tool (5) die sinking, takes out control arm casting, is dipped in 30-45 DEG C of water and cools down, and casting transfer time is no more than 30s,
Thus, control arm Foundry Production is completed.This aluminum alloy control arm casting production process, can produce complicated, wall thickness is big
In 4mm knuckle, the light-weighted control arm production of structure optimization can be effectively met, while in control arm casting process
In, by controlling Fe and Mg content effectively to improve the mechanical property of control arm；By by control arm casting mould (5)
In the closed mould room with pressure, filling velocity, the freezing pressure of casting can be effectively controlled, casting is reduced
Defect, obtains fine and close cast sturcture；The aluminum alloy control arm 30%- lighter than cast iron control arm of this casting technique production
40%, force of gravity casting and low pressure casting aluminum alloy control arm mechanical property improve 15%-20%.
Claims (9)
1. a kind of method for producing aluminum alloy control arm, described method comprises the following steps：(A) ZL101 aluminium is provided
Fe contents are less than 0.15wt.% in alloy, described ZL 101 alloy, and Mg contents are in 0.38%-0.45wt.%；(B) will step
Suddenly the ZL 101 alloy melting of (A), aluminium liquid is placed in the dry cooking-pot type holding furnace of casting machine, and between 700 DEG C -730 DEG C
Poured into a mould；(C) after casting machine matched moulds, 0.2MPa- is pressurized to by drying compressed air in Warming machine and mould room
0.6MPa, then mould room stops supercharging and pressure is kept, and the pressure curve according to setting is further continued for 4mbar- in holding furnace
Speed per second 20mbar continues to be pressurized, and the aluminium liquid in holding furnace is slowly filled into control arm Metallic Casting Die ＆ Mold die cavity；
(D) when filling type completion, each branch road cooling water is opened in mold cores, and cooling water temperature is 18 DEG C -22 DEG C, per minute with 6L-9L
Speed control arm mould is quickly cooled down, and keep the pressure in holding furnace；(E) mould room, the insulation of dry pot are shed
The pressure of stove (1) and the closed cavity of resorption of casting machine median septum (4) formation；And (F) mould chamber opening, mould die sinking, take out casting；
Casting is quickly immersed afterwards in 30 DEG C -45 DEG C of water and cooled down, complete the Foundry Production of control arm.
2. according to the method described in claim 1, it is characterised in that before step (B), the mould of casting be preheated to 300 DEG C-
350℃。
3. according to the method described in claim 1, it is characterised in that in step (B), when aluminium liquid temperature less than 700 DEG C or
When person is higher than 730 DEG C, alarms and stop pouring into a mould work.
4. according to the method described in claim 1, it is characterised in that in step (B), holding furnace is located at casting machine central dividing plate
Lower section, control arm casting mould is located above casting machine central dividing plate, and holding furnace is connected by stalk with mould.
5. according to the method described in claim 1, it is characterised in that in step (B), control arm mould is carried out pre- before die casting
Heat, preheating temperature is 300 DEG C -350 DEG C.
6. according to the method described in claim 1, it is characterised in that in step (B), when die casting starts, mould room die cavity
With holding furnace, two spatial domains are while be pressurized to 0.2MPa-0.6MPa up and down, and then mould room stops supercharging and pressurize, holding furnace
It is interior to continue to be pressurized, so that aluminium liquid is flowed into mold cavity through stalk in holding furnace.
After 7. according to the method described in claim 1, it is characterised in that in step (E), cooling is opened after 50s-80s, mould
Room and the pressure release simultaneously of insulation furnace pressure so that equal no pressure is present in mould room and holding furnace.
8. according to the method described in claim 1, it is characterised in that in step (E), cooling is opened after 50-80S, mould room
Pressure release, dry pot holding furnace (1) is then continued to the closed lower cavity pressure that casting machine median septum (4) is formed, and 150s- is opened in cooling
After 220s, crucible heat insulation stove (1) and the closed cavity of resorption pressure release of casting machine median septum (4) formation.
9. according to the method described in claim 1, it is characterised in that in step (F), taken out in casting to during entering water,
Casting transfer time is no more than 30s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008581.7A CN107052304A (en) | 2017-01-05 | 2017-01-05 | A kind of method for producing aluminum alloy control arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008581.7A CN107052304A (en) | 2017-01-05 | 2017-01-05 | A kind of method for producing aluminum alloy control arm |
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| Publication Number | Publication Date |
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| CN107052304A true CN107052304A (en) | 2017-08-18 |
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ID=59624280
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710008581.7A Pending CN107052304A (en) | 2017-01-05 | 2017-01-05 | A kind of method for producing aluminum alloy control arm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453240A (en) * | 2018-02-08 | 2018-08-28 | 中国兵器科学研究院宁波分院 | A kind of counter-pressure casting method of armored vehicle water propeller Al-alloy casing |
| CN114734022A (en) * | 2022-06-13 | 2022-07-12 | 中国航发北京航空材料研究院 | Metal type low-pressure casting top-placing solidification device and method for preparing small and medium-sized castings |
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| CN101439396A (en) * | 2008-12-10 | 2009-05-27 | 中国兵器工业第五二研究所 | Counter-pressure casting process for casting parts of door cover |
| EP2286941A1 (en) * | 2009-07-30 | 2011-02-23 | Benteler Automobiltechnik GmbH | Undercarriage component for a motor vehicle and method for its production |
| CN102873301A (en) * | 2012-10-22 | 2013-01-16 | 中国船舶重工集团公司第七0七研究所 | Counter-pressure casting process for ZL424 aluminum alloy castings |
| CN103978183A (en) * | 2014-05-27 | 2014-08-13 | 浙江万丰科技开发有限公司 | Differential pressure casting machine and casting method |
| CN104308120A (en) * | 2014-11-18 | 2015-01-28 | 吉林金城铸锻有限责任公司 | Method for manufacturing automobile control arm body blank |
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2017
- 2017-01-05 CN CN201710008581.7A patent/CN107052304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439396A (en) * | 2008-12-10 | 2009-05-27 | 中国兵器工业第五二研究所 | Counter-pressure casting process for casting parts of door cover |
| EP2286941A1 (en) * | 2009-07-30 | 2011-02-23 | Benteler Automobiltechnik GmbH | Undercarriage component for a motor vehicle and method for its production |
| CN102873301A (en) * | 2012-10-22 | 2013-01-16 | 中国船舶重工集团公司第七0七研究所 | Counter-pressure casting process for ZL424 aluminum alloy castings |
| CN103978183A (en) * | 2014-05-27 | 2014-08-13 | 浙江万丰科技开发有限公司 | Differential pressure casting machine and casting method |
| CN104308120A (en) * | 2014-11-18 | 2015-01-28 | 吉林金城铸锻有限责任公司 | Method for manufacturing automobile control arm body blank |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453240A (en) * | 2018-02-08 | 2018-08-28 | 中国兵器科学研究院宁波分院 | A kind of counter-pressure casting method of armored vehicle water propeller Al-alloy casing |
| CN108453240B (en) * | 2018-02-08 | 2020-04-17 | 中国兵器科学研究院宁波分院 | Differential pressure casting method of aluminum alloy shell for waterborne propulsion device of armored vehicle |
| CN114734022A (en) * | 2022-06-13 | 2022-07-12 | 中国航发北京航空材料研究院 | Metal type low-pressure casting top-placing solidification device and method for preparing small and medium-sized castings |
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Application publication date: 20170818 |