CN106424585A - Cooling system for cast aluminum alloy steering knuckle mould - Google Patents
Cooling system for cast aluminum alloy steering knuckle mould Download PDFInfo
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- CN106424585A CN106424585A CN201610940068.7A CN201610940068A CN106424585A CN 106424585 A CN106424585 A CN 106424585A CN 201610940068 A CN201610940068 A CN 201610940068A CN 106424585 A CN106424585 A CN 106424585A
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- Prior art keywords
- chamber
- cooling bath
- cooling
- amortisseur
- mould
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- 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
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
-
- 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
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a cooling system for a cast aluminum alloy steering knuckle mould, and particularly relates to a cooling system for a cast aluminum alloy steering knuckle mould for a MacPhersan type suspending system. The cooling system comprises a mould body, wherein a mould cavity is arranged in the mould body; a damper part surface cooling slot is formed in a position, which corresponds to a damper part cavity, in the mould body; a drawbar part point cooling cavity is arranged on a position, which corresponds to a drawbar part cavity, in the mould body; a triangular arm part line cooling slot is formed in a position, which corresponds to a triangular arm part cavity, in the mould body; and a caliper part point cooling slot is formed in a position, which corresponds to a caliper part cavity, in the mould body. For a steering knuckle with a relatively great wall thickness difference, the cooling system can realize progressive solidification of a steering knuckle cast piece, so that formation of shrinkage defects is avoided, cooling of each mounting hole part of the cast piece is strengthened, mould heat balance is improved, mould deformation is reduced, mechanical property of the cast piece is improved, and production efficiency is improved.
Description
Technical field
The present invention relates to casting mould technical field, refers specifically to a kind of cooling system of cast aluminium alloy gold knuckle mould,
The especially MacPherson type suspension cooling system of aluminium alloy knuckle casting mould.
Background technology
MacPherson type independent suspension has the advantages that simple structure, light weight, fast response time, thus becomes current application most
Extensive automobile front suspension system.Knuckle as extremely important safety knot component in such suspension, turning to, urgent
The impact of the effect of multiple fatigue loads and accident is born when braking, break away, crossing uneven road surface.Therefore, which must have
Excellent combination property, to ensure automobile and driving safety.
The knuckle of early stage mostly is and adopts integral forging and forming, but finished forged product rate is low, production cost is high；Multiple for shape
Miscellaneous knuckle, then using welding type and bolt connecting type.For solving the problems referred to above and the deficiency of forging method production knuckle,
It is widely applied using the method for Unitary ductile iron shaping knuckle, such an approach achieves knuckle part one
Body is melted into shape, and production process is few, is the main method of various spindle shapings at present.
However, as the requirement to automotive light weight technology, reduction fuel consumption is improved constantly, knuckle part is faced with upgrading
The urgent needss of the replacement, the direction for being just progressively intended to " with aluminum for ferrum " is developed.Currently, with respect to grinding for cast aluminium alloy gold knuckle
Send out, mainly employ extrusion casint, counter-pressure casting, three kinds of forming technologies of low pressure casting.In casting process, mould structure is shadow
The principal element of casting solidification behavior, yield rate and production efficiency is rung, determines solidified structure and mechanical property, the Yi Jizhu of foundry goods
Formation of defect etc. is made, especially cooling system.Therefore, how to optimize the design of cooling system to avoid causing solidification shrinkage to lack
The rate of cooling that fall into, reduce die deformation, accelerates foundry goods, is the emphasis of cast aluminium alloy gold knuckle mould development consideration.
Content of the invention
In aluminium alloy Foundry Production, it is the modal type of cooling of application water-cooled to put cold and line cold.However, both modes
Intensity of cooling limited, especially for foundry goods heavy wall position, easily cause core structure thick because intensity of cooling is not enough, and then
The performance of impact foundry goods.Therefore, for the larger automotive safety structural member of complex-shaped, wall thickness difference, cold only with putting
It is difficult to meet the requirement of its structure property, such as MacPherson type suspension knuckle part with the cold technique of line.
In order to overcome the deficiencies in the prior art, the present invention is directed to the structure of MacPherson type suspension aluminium alloy knuckle
A kind of many factors such as feature, performance requirement and casting manufacturability, there is provided cooling of cast aluminium alloy gold knuckle mould
System.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of cooling system of cast aluminium alloy gold knuckle mould, including die ontology, is provided with die cavity in the die ontology,
Wherein the die cavity includes the amortisseur position chamber at corresponding shock absorber mounting hole position, corresponding cross-tie ball pin and installs hole portion
The pull bar position chamber of position, the Triangular Arm position chamber at corresponding Triangular Arm ball pin installing hole position, corresponding brake caliper ball pin installing hole
The clamp position chamber at position.The cooling of amortisseur position face is provided with the die ontology at the position in corresponding amortisseur position chamber
Groove, is provided with rod section site cooling chamber, arranges at the position in corresponding Triangular Arm position chamber at the position in corresponding pull bar position chamber
There is Triangular Arm bit line cooling bath, at the position in corresponding clamp position chamber, be provided with clamp position point cooling bath.Wherein described subtract
Shake device position face cooling bath be planar cooling bath, rod section site cooling chamber, clamp position point cooling bath be towards die cavity
Tubulose cooling chamber, the Triangular Arm bit line cooling bath is the tubulose cooling chamber around Triangular Arm position chamber.
Used as a preference, amortisseur position face cooling bath is the song for being distributed in the upper and lower both sides in amortisseur position chamber
Planar cooling bath.
Used as a preference, the thickness of amortisseur position face cooling bath is 5～10mm, and with amortisseur position chamber
Cavity surface distance be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～30mm be 20～.
Used as a preference, the internal diameter of rod section site cooling chamber is 8～12mm, and the type with pull bar position chamber
Cavity surface distance is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～18mm is 12～.
As a preference, a diameter of 8～15mm of the Triangular Arm bit line cooling bath, and with Triangular Arm position chamber
Cavity surface distance be 25～35mm.
Used as a preference, the internal diameter of the clamp position point cooling bath is 8～12mm, and the type with clamp position chamber
The distance of Cavity surface is 12～18mm.
The invention has the beneficial effects as follows：Will with aluminium alloy knuckle casting technique and performance for MacPherson type suspension
Ask, during casting solidification using face cold, line is cold, put the cold water-cooling pattern for combining, and realizes knuckle foundry goods consecutive solidification；
Strengthen the cooling to each installing hole position of knuckle so that cast structure densification, so as to improve mechanical property and the fatigue of foundry goods
Performance；Ensure mould thermal balance, reduce die deformation, be conducive to improving the stability of Foundry Production；Accelerate foundry goods heavy wall position
Rate of cooling, improve production efficiency.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the side view of MacPherson type suspension knuckle.
Fig. 2 is the top view of MacPherson type suspension knuckle.
Fig. 3 is the mould structure schematic diagram of the present invention.
Fig. 4 is schematic layout pattern of the present invention using mold cooling system during low pressure casting aluminum alloy knuckle.
Fig. 5 is schematic layout pattern of the present invention using mold cooling system during extrusion casint aluminium alloy knuckle.
Specific embodiment
In order that the purpose of the application, technical scheme and advantage become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.For the thorough explanation present invention, some certain detail can be related in following description
Section.And when not having these specific detail, the present invention then still may can achieve, i.e., the technical staff in art is using herein
These description and state to the others skilled in the art in art effectively introduce they work essence.
Furthermore, it is necessary to illustrate, word " front side " used in describing below, " rear side ", " left side ", " right side ", " on
Side ", " downside " etc. refer to the direction in accompanying drawing, and word " interior " and " outward " are referred respectively to towards or away from particular elements geometry
The direction at center, person skilled should not be construed as the application in simple to above-mentioned direction work, need not be creative adjustment
Technology beyond protection domain.It should be appreciated that specific embodiment described herein is not used to only in order to explain the application
Limit real protection scope.
Embodiment 1
Reference Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of cooling system of cast aluminium alloy gold knuckle mould, including die ontology 1,
Die cavity 2 is provided with the die ontology 1, the wherein die cavity 2 includes the amortisseur at corresponding shock absorber mounting hole position 31
Position chamber 21, the pull bar position chamber 22 at corresponding cross-tie ball pin installing hole position 32, corresponding Triangular Arm ball pin installing hole position
33 Triangular Arm position chamber 23, the clamp position chamber 24 at corresponding brake caliper ball pin installing hole position 34.In the die ontology 1
Amortisseur position face cooling bath 41 is provided with the position in corresponding amortisseur position chamber 21, corresponding pull bar in the die ontology 1
Rod section site cooling chamber 42 is provided with the position in position chamber 22, corresponding Triangular Arm position chamber 23 in the die ontology 1
Triangular Arm bit line cooling bath 43 is provided with position, is arranged in the die ontology 1 at the position in corresponding clamp position chamber 24
There is clamp position point cooling bath 44.That is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be planar cooling bath, that is wherein described amortisseur position face cooling bath 41 be
Cooling bath 41 realizes cooling to amortisseur position chamber 21 by the larger planar cooling duct of contact area.The pull bar
Position point cooling chamber 42, clamp position point cooling bath 44 are the tubulose cooling chamber towards die cavity 2, that is, pass through a contact area phase
Less point-like cooling duct is cooled down to pull bar position chamber 22, clamp position chamber 24.The Triangular Arm bit line is cold
But groove 43 is the tubulose cooling chamber around Triangular Arm position chamber 23, i.e., by the elongated cooling duct of a wire come to Triangular Arm
Position chamber 23 cools down.
Due to shock absorber mounting hole position 31 in aluminum liquid filling type foremost and wall thickness is relatively large, during military service should
Region is main stress area, and its structure property requirement is high, thus will be cooled down by amortisseur position face cooling bath 41, that is, adopt
With the cold mode in the stronger face of cooling effect；32 wall thickness of cross-tie ball pin installing hole position are relatively small, using rod section site
The cold mode of the point of cooling chamber 42 is cooled down；Triangular Arm ball pin installing hole position 33 is also main stress area, but its structure is relative
Complexity, while consider casting manufacturability, the cooling in the region is using the cold mode of line of Triangular Arm bit line cooling bath 43；Braking clamp
Pincers ball pin installing hole position 34 is using the cold mode of point of clamp position point cooling bath 44.
In real work, above-mentioned tubulose cooling chamber, planar cooling bath are substantially still coolant flow channel, therefore real
Now the die cavity 2 of die ontology 1 is cooled down, it is necessary to preserve a certain distance with die cavity 2 and can not connect with die cavity 2.Make
For preference, in order to ensure cooling effect, the thickness of amortisseur position face cooling bath 41 is 5～10mm, and and amortisseur
The cavity surface distance in position chamber 21 is 20～30mm.Amortisseur position face cooling bath 41 is for being distributed in amortisseur position chamber 21
The curved cooling bath of upper and lower both sides.The internal diameter of rod section site cooling chamber 42 be 8～12mm, and with pull bar position chamber 22
Cavity surface distance be 12～18mm, and to be distributed in the both sides up and down in pull bar position chamber 22.The Triangular Arm bit line cooling bath
43 a diameter of 8～15mm, and with the distance of the cavity surface in Triangular Arm position chamber 23 be.The clamp position point is cold
But the internal diameter of groove 44 is 8～12mm, positioned at the upside of clamp position chamber 24, and is 12 with the distance of the cavity surface in clamp position chamber 24
～18mm.
Embodiment 2
With reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, a kind of cooling system of cast aluminium alloy gold knuckle mould, wherein referred to herein is " real
Apply example " special characteristic, structure or the characteristic that refer to may be included at least one implementation of the application.In this manual not
" in the embodiment " for occurring with place not refers both to same embodiment, nor individually or selectively and other embodiment
Mutually exclusive embodiment.Embodiment is specific to low pressure casting aluminum alloy knuckle mould, including die ontology 1, the mould
Die cavity 2 is provided with tool body 1, the wherein die cavity 2 includes the amortisseur position chamber at corresponding shock absorber mounting hole position 31
21st, correspond to the pull bar position chamber 22 at cross-tie ball pin installing hole position 32, correspond to the three of Triangular Arm ball pin installing hole position 33
Angle arm position chamber 23, the clamp position chamber 24 at corresponding brake caliper ball pin installing hole position 34.In the die ontology 1, correspondence subtracts
Amortisseur position face cooling bath 41 is provided with the position in shake device position chamber 21, cooling bath 41 thickness in amortisseur position face is
8mm and with the cavity surface in amortisseur position chamber 21 distance be.The position in corresponding pull bar position chamber 22 in the die ontology 1
Place is provided with rod section site cooling chamber 42, the internal diameter of rod section site cooling chamber 42 be 11mm and with pull bar position chamber 22
Cavity surface distance be to be provided with Triangular Arm position at the position in corresponding Triangular Arm position chamber 23 16mm, in the die ontology 1
Line cooling bath 43, a diameter of 13mm of the Triangular Arm bit line cooling bath 43, and with the cavity surface in Triangular Arm position chamber 23
Distance is 33mm.Clamp position point cooling bath 44, institute is provided with the die ontology 1 at the position in corresponding clamp position chamber 24
The internal diameter for stating clamp position point cooling bath 44 is 11mm, positioned at 24 upside of clamp position chamber, and the die cavity with clamp position chamber 24
The distance in face is 17mm.Wherein amortisseur position face cooling bath 41 is planar cooling bath, rod section site cooling chamber
42nd, clamp position point cooling bath 44 is the tubulose cooling chamber towards die cavity 2, the Triangular Arm bit line cooling bath 43 be around three
The tubulose cooling chamber in angle arm position chamber 23.The die cavity 2 also includes the wheel hub at corresponding hub-bearing unit installing hole position 35
Bearing portion chamber 25, is provided with hub bearing bit line at the position in corresponding hub bearing position chamber 25 in the die ontology 1
Cooling bath 45, the hub bearing bit line cooling bath 45 is tubulose cooling chamber.
In the present embodiment, aluminium alloy knuckle is prepared using low-pressure casting process, mainly include following processing step：
1）Prepared by melting：Aluminium alloy ingots is put in melting furnace carries out melting, carries out refine, rotten, degasification after fusing to aluminium liquid
Process, subsequently aluminium liquid is transferred in holding furnace, waits to be cast；
2）Low pressure fills type：Preheated mold, matched moulds, low pressure fill type；
3）Pressurize solidifies：Fill after type terminates, using face cold, line is cold, put the cold type of cooling for combining that mould is cooled down, protect
Card foundry goods completes consecutive solidification under the conditions of stronger rate of cooling；Subsequently release, foundry goods natural cooling, wait die sinking；
4）Die sinking pickup：After casting solidification terminates, pickup is molded.
In the step 1, aluminium alloy knuckle is a safety knot component for being applied to MacPherson type suspension, its change
Study point（Mass percent, similarly hereinafter）For Si6.85%, Mg0.336%, Cu0.0004%, Fe0.1%, Mn0.0005%,
Zn0.018%, Ti0.168%, Sr0.017%, balance of Al.
In the step 2, the preheating temperature of mould is 280-320 DEG C, and the equilibrium temperature after production is stable is 270-350
℃.
In the step 3, described cooling medium be industrial pure water, using face is cold, line is cold, put the cold water-cooled side for combining
Formula is cooled down to each installing hole position of foundry goods.In the step 4, the property of prepared low pressure casting aluminum alloy knuckle foundry goods
Can excellent, its tensile strength, yield strength, percentage elongation respectively reach 300MPa, 235MPa, 8%.
Embodiment 3
With reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, a kind of cooling system of cast aluminium alloy gold knuckle mould, squeeze casting Al is specific to
Alloy knuckle mould, including die ontology 1, is provided with die cavity 2 in the die ontology 1, and wherein the die cavity 2 includes right
Answer amortisseur position chamber 21, the pull bar position chamber at corresponding cross-tie ball pin installing hole position 32 at shock absorber mounting hole position 31
22nd, correspond to the Triangular Arm position chamber 23 at Triangular Arm ball pin installing hole position 33, correspond to brake caliper ball pin installing hole position 34
Clamp position chamber 24, is provided with the cooling of amortisseur position face at the position in corresponding amortisseur position chamber 21 in the die ontology 1
Groove 41, the thickness of amortisseur position face cooling bath 41 is 5mm, and with the cavity surface distance in amortisseur position chamber 21 is
20mm.Rod section site cooling chamber 42, the pull bar are provided with the position in corresponding pull bar position chamber 22 in the die ontology 1
The internal diameter of position point cooling chamber 42 is 8mm, and with the cavity surface distance in pull bar position chamber 22 be.In the die ontology 1
Triangular Arm bit line cooling bath 43, the Triangular Arm bit line cooling bath 43 are provided with the position in corresponding Triangular Arm position chamber 23
A diameter of 8mm, and with the distance of the cavity surface in Triangular Arm position chamber 23 be.Corresponding clamp portion in the die ontology 1
Clamp position point cooling bath 44 is provided with the position in position chamber 24, and the internal diameter of the clamp position point cooling bath 44 is 8mm, is located at
The upside of clamp position chamber 24, and be 12mm with the distance of the cavity surface in clamp position chamber 24.Wherein amortisseur position face is cold
But groove 41 be planar cooling bath, rod section site cooling chamber 42, clamp position point cooling bath 44 be tubulose towards die cavity 2
Cooling chamber, the Triangular Arm bit line cooling bath 43 is the tubulose cooling chamber around Triangular Arm position chamber 23.
In the present embodiment, aluminium alloy knuckle is prepared using Extrution casting technique, mainly include following processing step：
1）Prepared by melting：Aluminium alloy ingots is put in melting furnace carries out melting, carries out refine, rotten, degasification after fusing to aluminium liquid
Process, wait to be cast；
2）Low speed fills type：Preheated mold, matched moulds, low speed fill type；
3）Supercharging solidification：Fill after type terminates, operation cooling system is cooled down to mould, it is ensured that foundry goods is in strong rate of cooling and height
Solidification is completed under conditions of pressure, to obtain the aluminium alloy knuckle foundry goods of dense structure and function admirable；Subsequently release, foundry goods
Natural cooling, waits die sinking；
4）Die sinking pickup：After casting solidification terminates, pickup is molded.
In the step 1, aluminium alloy knuckle is a safety knot component for being applied to MacPherson type suspension, its change
Study point（Mass percent, similarly hereinafter）For Si6.85%, Mg0.336%, Cu0.0004%, Fe0.1%, Mn0.0005%,
Zn0.018%, Ti0.168%, Sr0.017%, balance of Al.
In the step 2, the preheating temperature of mould is 180-220 DEG C, and the equilibrium temperature after production is stable is 200-250
℃.
In the step 3, described cooling medium is industrial pure water.Using face cold, line is cold, put the cold water-cooled side for combining
Formula is cooled down to each installing hole position of foundry goods.
In the step 4, the function admirable of prepared extrusion casint aluminium alloy knuckle foundry goods, its tensile strength, bend
Take intensity, percentage elongation respectively reach 320MPa, 240MPa, 10%.
According to above-mentioned principle, the present invention can also carry out appropriate change and modification to above-mentioned embodiment.Therefore, this
Bright be not limited to specific embodiment disclosed and described above, some modifications and changes of the present invention should also be as falling into this
In the scope of the claims of invention.
Through it was verified that using above-mentioned die cooling structure, during casting solidification, cold face to face, line is cold, put cold work
When the parameter settings such as skill are in OK range, on the basis of foundry goods consecutive solidification is ensured, each installing hole position of knuckle is realized
Aluminium liquid complete solidification under strong cool condition, foundry goods rate of cooling is accelerated, and is conducive to improving the mechanical property of foundry goods and fatigability
Can, so as to prepare high performance MacPherson type suspension aluminium alloy knuckle.
Claims (7)
1. a kind of cooling system of cast aluminium alloy gold knuckle mould, including die ontology（1）, the die ontology（1）Inside set
It is equipped with die cavity（2）, the wherein die cavity（2）Include corresponding shock absorber mounting hole position（31）Amortisseur position chamber（21）、
Corresponding cross-tie ball pin installing hole position（32）Pull bar position chamber（22）, corresponding Triangular Arm ball pin installing hole position（33）'s
Triangular Arm position chamber（23）, corresponding brake caliper ball pin installing hole position（34）Clamp position chamber（24）, it is characterised in that：Institute
State die ontology（1）Interior corresponding amortisseur position chamber（21）Position at be provided with amortisseur position face cooling bath（41）, corresponding
Pull bar position chamber（22）Position at be provided with rod section site cooling chamber（42）, corresponding Triangular Arm position chamber（23）Position at
It is provided with Triangular Arm bit line cooling bath（43）, corresponding clamp position chamber（24）Position at be provided with clamp position point cooling bath
（44）.
2. wherein amortisseur position face cooling bath（41）For planar cooling bath, rod section site cooling chamber（42）, card
Pincers position point cooling bath（44）Be towards die cavity（2）Tubulose cooling chamber, the Triangular Arm bit line cooling bath（43）Be around
Triangular Arm position chamber（23）Tubulose cooling chamber.
3. the cooling system of a kind of cast aluminium alloy gold knuckle mould according to claim 1, it is characterised in that：Described subtract
Shake device position face cooling bath（41）For being distributed in amortisseur position chamber（21）The curved cooling bath of upper and lower both sides.
4. the cooling system of a kind of cast aluminium alloy gold knuckle mould according to claim 1, it is characterised in that：Described subtract
Shake device position face cooling bath（41）Thickness be 5～10mm, and with amortisseur position chamber（21）Cavity surface distance for 20～
30mm.
5. the cooling system of a kind of cast aluminium alloy gold knuckle mould according to claim 1, it is characterised in that：The drawing
Bar portion site cooling chamber（42）Internal diameter be 8～12mm, and with pull bar position chamber（22）Cavity surface distance be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～18mm be 12～.
6. the cooling system of a kind of cast aluminium alloy gold knuckle mould according to claim 1, it is characterised in that：Described three
Angle arm bit line cooling bath（43）A diameter of 8～15mm, and with Triangular Arm position chamber（23）Cavity surface distance be 25～
35mm.
7. the cooling system of a kind of cast aluminium alloy gold knuckle mould according to claim 1, it is characterised in that：The card
Pincers position point cooling bath（44）Internal diameter be 8～12mm, and with clamp position chamber（24）Cavity surface distance be 12～18mm.
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| CN201610940068.7A CN106424585B (en) | 2016-11-01 | 2016-11-01 | A kind of cooling system of cast aluminium alloy gold knuckle mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539797A (en) * | 2018-05-29 | 2019-12-06 | 日信工业株式会社 | Vehicle support structure and method for manufacturing same |
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| CN106424585B (en) | 2019-06-11 |
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