CN110023524A - The artificial aging method of aluminium-silicon alloys for die casting - Google Patents
The artificial aging method of aluminium-silicon alloys for die casting Download PDFInfo
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- CN110023524A CN110023524A CN201680091430.6A CN201680091430A CN110023524A CN 110023524 A CN110023524 A CN 110023524A CN 201680091430 A CN201680091430 A CN 201680091430A CN 110023524 A CN110023524 A CN 110023524A
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
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- 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
- C22F1/043—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 silicon as the next major constituent
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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
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
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Abstract
The present invention provides the methods of heat treatment pressure casting aluminium alloy part.Die casting has at least one thickness≤5 mm thin-wall regions.The alloy has the silicon of >=6.5 mass % to≤15.5 mass %, >=0.1 mass % to the copper of≤3.5 mass %, the magnesium of≤0.5 mass %, the manganese of≤0.6 mass % and the chromium of≤0.6 mass %.This method includes the die casting being quenched to the first temperature less than 50 DEG C with >=about 100 DEG C/sec of cooling rate, and promote to form Mg in aluminium alloy matrix by the way that the die casting to be heated to >=about 150 DEG C of one section of scheduled duration of second temperature2Si particle carries out age-hardening.The component of lightweight, high intensity, high ductility can be formed by the aluminium alloy that this method is handled.
Description
Introduction
This section provides background information relevant to the disclosure, is not necessarily the prior art.
This disclosure relates to artificial aging acieral, in particular for the method for the acieral of high pressure die casting, to be formed
The component of lightweight, high intensity, high ductility.
Aluminium alloy is commonly used in manufacturing die casting engine cylinder body and the transmission in component, such as auto industry by die casting
Case.Particularly, aluminium alloy (Al alloy) is usually used in the part that die casting has thin-walled, it is required that high-intensitive and high ductility, simultaneously also
It is lightweight.The many common Al alloys used in auto industry are can die casting and heat treatable.Such pack alloy
Additional heat treatment can be carried out to improve intensity.
For example, T5 heat treatment process is commonly used in certain aluminium alloys comprising the die casting alloy is cooled to, then exists
Artificial aging/age-hardening of one section of predetermined time is carried out at raised temperature, wherein main alloying elements are in slow solidification
During form eutectic phase.It can also be heat-treated using T6 when casting alloy, generally include solution heat treatment to dissolve
The solvable phase formed after solidification then carries out artificial aging/age-hardening of one section of predetermined time at elevated temperatures, wherein
Main alloying elements form eutectic phase during slow solidification.T5 is commonly used in thin-section casting, and T6 is commonly used in thickness
Wall casting.
Exploitation is used to form tough and ductility pack alloy and eliminates the processing step in manufacturing process and high temperature
New method is desirable.
Summary of the invention
This section provides the overview of disclosure, and the not comprehensive disclosure of its full scope or its all feature.
This disclosure relates to a kind of method for being heat-treated pressure casting aluminium alloy part.In one aspect, such method includes pressure
Cast aluminium alloy is to form the die casting at least one thickness less than or equal to about the thin-wall regions of 5 mm.Aluminium alloy tool
Have aluminium alloy be greater than or equal to about 6.5 mass % to less than or the silicon equal to about 15.5 mass %, aluminium alloy be greater than or
Equal to about 0.1 mass % to less than or copper equal to about 3.5 mass %, aluminium alloy less than or equal to about 0.5 mass %'s
Magnesium, aluminium alloy the manganese and aluminium alloy less than or equal to about 0.6 mass % the chromium less than or equal to about 0.6 mass %.It should
Method further comprise more than or equal to die casting is quenched under about 100 DEG C/sec of cooling rate less than 50 DEG C the
One temperature.This method may further include by the way that die casting to be heated to the second temperature one more than or equal to about 150 DEG C
The section scheduled duration is to promote to form magnesium silicide (Mg in aluminium alloy matrix2Si) particle carries out age-hardening.
In certain variants, the aluminium alloy also include less than or equal to about the iron of 1.3 weight %, aluminium alloy be less than or
The strontium less than or equal to about 0.08 mass % of titanium, aluminium alloy equal to about 0.15 mass %, less than or equal to about 0.003
The phosphorus of weight %, and the aluminium with surplus.
In other variants, second temperature is more than or equal to about 155 DEG C to less than or equal to about 220 DEG C.
In certain other variants, which has the yield strength more than or equal to about 150 MPa.
In certain variants, which has the ultimate tensile strength more than or equal to about 280 MPa.
In other variants again, which has the ductility more than or equal to about 5%.
In certain variants, magnesium silicide (Mg2Si) particle is distributed generally uniformly in the aluminium alloy matrix of the die casting.
In other aspects, the disclosure includes a kind of method for being heat-treated pressure casting aluminium alloy part.This method includes die casting aluminium
Alloy is to form the die casting at least one thickness less than or equal to about the thin-wall regions of 5 mm.The aluminium alloy has aluminium
Alloy be greater than or equal to about 8.5 mass % to less than or silicon equal to about 10.5 mass %, aluminium alloy be greater than or equal to
About 0.8 mass % to less than or the copper equal to about 1.5 mass %, aluminium alloy be greater than or equal to about 0.1 mass % to less than
Or the magnesium equal to about 0.5 mass %, manganese can be greater than or equal to about 0.4 mass % to less than or equal to about with aluminium alloy
0.6 mass % exist and aluminium alloy be greater than or equal to about 0.1 mass % to less than or the chromium equal to about 0.6 mass %.
This method includes the first temperature being quenched to die casting under the cooling rate more than or equal to about 100 DEG C/sec less than 50 DEG C
Degree, and by the way that die casting is heated to one section of scheduled duration of second temperature more than or equal to about 150 DEG C to promote
Into the formation magnesium silicide (Mg in aluminium alloy matrix2Si) particle carries out age-hardening.
In certain variants, the aluminium alloy also have iron less than or equal to about 0.25 weight %, aluminium alloy be greater than or
Equal to about 0.05 mass % to less than or titanium equal to about 0.1 mass %, aluminium alloy be greater than or equal to about 0.01 mass %
To less than or the strontium equal to about 0.015 mass %, the phosphorus less than or equal to about 0.003 weight % and surplus aluminium.
In other variants, second temperature is more than or equal to about 155 DEG C to less than or equal to about 220 DEG C.
In certain other variants, which has the yield strength more than or equal to about 150 MPa.
In certain variants, which has the ultimate tensile strength more than or equal to about 280 MPa.
In other variants again, which has the ductility more than or equal to about 5%.
In certain variants, magnesium silicide (Mg2Si) particle is distributed generally uniformly in the aluminium alloy matrix of the die casting.
In other aspects again, present disclose provides a kind of methods for manufacturing vehicle part.This method may include being closed with aluminium
Golden die casting vehicle part is to form the die casting at least one thickness less than or equal to about the thin-wall regions of 5 mm.The aluminium
What alloy had an aluminium alloy is greater than or equal to about 8.5 mass % to less than or silicon equal to about 10.5 mass %, aluminium alloy
More than or equal to about 0.8 mass % to less than or copper equal to about 1.5 mass %, aluminium alloy be greater than or equal to about 0.1
Quality % to less than or the magnesium equal to about 0.5 mass %, being greater than or equal to for aluminium alloy about 0.4 mass % to less than or be equal to
The manganese of about 0.6 mass %, aluminium alloy be greater than or equal to about 0.1 mass % to less than or the chromium equal to about 0.6 mass %,
Aluminium alloy be greater than or equal to about 0.05 mass % to less than or the titanium equal to about 0.1 mass %, aluminium alloy be greater than or wait
In about 0.01 mass % to less than or the strontium equal to about 0.015 mass %, the iron less than or equal to about 0.25 weight %, small
In or equal to the phosphorus of about 0.003 weight % and the aluminium of surplus.This method further comprises being greater than or equal to about 100
DEG C/sec cooling rate under die casting vehicle part is quenched to the first temperature less than 50 DEG C, and by by die casting vehicle portion
Part is heated to one section of scheduled duration of second temperature more than or equal to about 150 DEG C to promote the shape in aluminium alloy matrix
At magnesium silicide (Mg2Si) particle carries out age-hardening.
In certain variants, die casting vehicle part is selected from: car column, hinge pillar, panel, door panel, door components, interior bottom
Storage tank (console boxes) between plate, chassis, roof, outer surface, vehicle bottom backplate, wheel, storing part, glove compartment, seat,
Luggage case, baggage compartment floor, luggage case compartment, lampshade (lamp pockets), shock tower (shock towers), shock-absorbing tower top
Cap, control arm, suspension parts, power train part, engine-mounting bracket, gearbox mount bracket, alternator support, sky
Adjust compressor bracket, front panel (cowl plates) and combinations thereof.
In other variants, second temperature is more than or equal to about 155 DEG C to less than or equal to about 220 DEG C.
In certain other variants, which has the yield strength more than or equal to about 150 MPa.
In certain variants, which has the ultimate tensile strength more than or equal to about 280 MPa.
In other variants again, which has the ductility more than or equal to about 5%.
In certain variants, magnesium silicide (Mg2Si) particle is distributed generally uniformly in the aluminium alloy matrix of the die casting.
Other suitable application areas will become obvious by description provided herein.Description and specific example meaning in this general introduction
In the purpose being merely to illustrate, and it is not intended to limit the scope of the present disclosure.
Detailed description of the invention
Attached drawing described herein is only used for the illustration purpose of selected embodiment, rather than all possible implementation, and
It is not intended to limit the scope of the present disclosure.
Fig. 1 show compare T5 heat treatment process with according to the figure of the heat treatment processes of some aspects of the disclosure, display
Temperature vs. time.
Corresponding appended drawing reference indicates corresponding part in multiple views of the attached drawing.
Detailed description of the invention
Exemplary implementation scheme is provided so that disclosure is abundant, and conveys its range completely to those skilled in the art.In order to provide
The embodiment of the disclosure is fully understood, proposes many details, such as concrete composition, the reality of components, apparatus, and method
Example.It will be obvious to a person skilled in the art that detail need not be used, exemplary implementation scheme can be with many not
It is embodied with form, and also should not be construed as limiting the scope of the present disclosure.In some example embodiments, well known side
Method, well known apparatus structure and well known technology are simultaneously not described in detail.
Term used herein is only used for describing the purpose of specific exemplary implementation scheme, and is not intended to limit.This
Singular " one " used herein, "/kind " and "the" can be intended to also include plural form, unless context is clearly
It explains separately.Term "comprising", " containing ", " comprising " and " having " are inclusives, thus define the feature, element,
Composition, step, integer, operation and/or the presence of component, but do not preclude the presence or addition of one or more of the other feature, whole
Number, step, operation, element, component and/or its group.Although open-ended term "comprising" is interpreted as protecting for describing and requiring
The non-limiting term of various embodiments described herein is protected, but in some aspects, which can also alternatively understand
To be more restrictive the sex-limited term of drawn game, such as " by ... form " or "consisting essentially of".Therefore, for narration group
At, material, component, element, feature, integer, operation and/or processing step any given embodiment, the disclosure also has
Body include by or substantially formed described in this class, material, component, element, feature, integer, operation and/or processing step form
Embodiment." by ... form " in the case where, alternate embodiment excludes any additional composition, material, component, wants
Element, feature, integer, operation and/or processing step, and in the case where "consisting essentially of", from such embodiment
It is middle to exclude to basic and novel characteristic generation any additional composition of materially affect, material, component, element, feature, whole
Number, operation and/or processing step, but will not materially affect is basic and any composition of novel characteristics, material, component, element,
Feature, integer, operation and/or processing step may include in this embodiment.
Unless particularly identified in a manner of implementation sequence, otherwise any method and step described herein, process and
Operation should not be construed as necessarily requiring the particular order to discuss or illustrate to implement them.It will further be understood that unless another
Row is pointed out, additional or alternative step otherwise can be used.
When component, element or layer be referred to as " ... on ", " being bonded to ", " being connected to " or " being coupled to " another element or
When on layer, directly on other components, element or layer or it can engage, connect or be coupled on other components, element or layer,
Or there may be between two parties element or layer.In contrast, when element is referred to as " on directly existing ... ", " being spliced directly to ",
When in " being connected directly to " or " coupling directly to " another element or layer, then element or layer between two parties can be not present.For retouching
The other words for stating relationship between element should explain in a similar manner (such as " ... between " to " between directly existing ... ",
" adjacent " is to " direct neighbor " etc.).Term "and/or" used herein includes the one or more of associated listed items
Any and all combinations.
Although term first, second, third, etc. etc. herein can be used for describing various steps, element, component, region,
Layer and/or part, but unless otherwise noted, otherwise these steps, element, component, regions, layers, and/or portions should not be by these
The limitation of a little terms.These terms can only be used to distinguish a step, element, component, region, layer or part with another step,
Element, component, region, layer or part.Such as the term of " first ", " second " and other numerical terms is not as used herein
Imply order or sequence, unless clearly indicated by the context.As a result, first step discussed below, element, component, region, layer or
Part can be referred to as second step, element, component, region, layer or part, without departing from the introduction of exemplary implementation scheme.
Space or time upper relevant term, such as " before ", " later ", " inside ", " outside ", " beneath ", " lower section ",
" lower part ", " top ", " top " etc. can be used for facilitating one element of description or feature as illustrated in the drawing and separately herein
The relationship of one or more elements or feature.Space or time upper relevant term can be intended in addition to discribed in figure
The different orientation of device or system in use or operation except orientation.
Term " composition " used herein and " material " be used interchangeably with refer at least containing preferred chemistry at
Point, the substance of element or compound, but unless otherwise noted, otherwise it can also include additional element, compound or object
Matter, the impurity including trace.
Word " substantially " mentioned herein indicates when the characteristic of the composition or method that are applied to the disclosure
There may be variations slightly in the characteristic, generate substantive shadow without the chemically or physically attribute to the composition or method
It rings.
The disclosure in the whole text in, digital value represents the boundary of approximate measure or range, with cover by given value it is small partially
Difference, and the embodiment with substantially mentioned value and with being definitely those of mentioned value embodiment.
Other than the working Examples provided at the end of detailed description, this specification, including in the appended claims parameter (such as
Amount or condition) all digital values be interpreted as being modified by term " about " in all cases, no matter before the digital value
Whether there is " about " in reality." about " indicate that the digital value allows a degree of slightly inexactness (to a certain extent
Close to the accuracy of the value；Substantially or reasonably close to the value；Almost).If in this field cannot with this ordinary meaning with
Other way understand " about " provided by if inexactness, then " about " used herein indicate at least may be by surveying
The variation of amount and the commonsense method generation using such parameter.For example, " about " may include less than or equal to 5%, being optionally less than
Or equal to 4%, be optionally less than or equal to 3%, be optionally less than or equal to 2%, be optionally less than or equal to 1%, be optionally less than or be equal to
0.5% and in certain aspects be optionally less than or the variation equal to 0.1%.
In addition, the disclosure of range includes the range of all values in open entire scope and further division, including for
The endpoint and subrange that the range provides.
Exemplary implementation scheme is described more fully with now with reference to attached drawing.
Aluminium alloy is widely used in vehicle, such as automobile, motorcycle, ship, tractor, bus, movable dwellings, camper
And tank, vehicle mass and saving space are reduced using that will keep punching.It is formed according to the method that this technology processes aluminium alloy
The component that quality reduces compared with the component made of conventional alloys (such as steel), maintains intensity and Ductility Requirement.Aluminium
Alloy can also be used for various other industries especially suitable for automobile or the component of other vehicles (such as motorcycle, ship)
And application, as non-limiting examples, including aerospace components, industrial equipment and machinery, agricultural equipment, heavy-duty machinery.
For example, aluminium alloy can be used to form die casting vehicle or automobile component.Although illustrating and retouching throughout this manual
Example components are stated, it is to be understood that the inventive concept in the disclosure can also be applied to times that can be formed by light-weight metal
What structure member, including used in vehicle those, such as automobile application, including but not limited to car column, such as hinge pillar, panel, packet
Structural panel, door panel and door components, interior bottom plate, chassis, roof, outer surface, vehicle bottom backplate, wheel, storing part are included,
Including storage tank, luggage case, baggage compartment floor, luggage case compartment, lampshade and other components, shock tower, shock-absorbing between glove compartment, seat
Tower top cap, control arm and other suspensions or power train part, engine-mounting bracket, gearbox mount bracket, alternating current generator
Bracket, air condition compressor bracket, front panel etc..Specifically, the disclosure (such as is held particularly suitable for imposing load or impact
Carry) any hardware.
In various aspects, present disclose provides the sides for the precipitation-hardening that pack alloy is realized by artificial aging process
Method.As non-limiting examples, thus reinforced aluminium alloy can be used for vehicle or automobile application.Reinforced aluminum metal parts is being used for vehicle
Certain applications in may carrying, in the case they have good intensity, rigidity and ductility (such as elongation).
High-intensitive, high rigidity and high ductility casting thin-wall component can be manufactured according to the method for some aspects of the disclosure
Or part.The method of manufacture aluminium alloy part can be die casting.In casting die, the alloy material of melting in casting process
Across defining the die head in one or more apertures or gap when it enters die cavity.Pass through die head in ingate, runner and
After cast gate, molten metal enters die cavity, its solidification is there to complete casting process.The die casting formed by aluminium alloy is opposite
It can be realized significant quality in conventional metal components (such as steel) to mitigate, while high-intensitive and good elongation being provided.?
In certain variants, the solid piece of casting forms light-weight metal structure member, has one or more after casting and solidification
The surface of further processing.
The aluminium alloy of solidification forms solid light metal alloys component, and having at least one is considered as thin size,
To form thin-section casting.At least one described size can cross over entire solid light metal alloys component, or only for
Extend in especially important some regions for modular construction.The thickness or width at least one region of the aluminum alloy part of solidification
Degree is considered thin (such as forming thin-walled).In some aspects, if size less than or equal to about 5 mm, optionally it is small
In or equal to about 4 mm, be optionally less than or equal to about 3 mm, be optionally less than or equal to about 2 mm, be optionally less than or be equal to
About 1.75 mm, be optionally less than or equal to about 1.5 mm, be optionally less than or equal to about 1.25 mm, be optionally less than or be equal to
About 1 mm, it is optionally less than or is equal to about 0.75 mm, and optionally less than or equal to about 0.5 mm's in certain variants
Words, then the size is considered thin.It should be pointed out that although the part can have at least one with the thin of above-mentioned size
Region, but the part can also have other sizes considerably beyond 5 mm (such as height and/or length).
As previously mentioned, many pack alloys can be heat-treated after die casting to improve intensity.Heat treatment reinforcement mainly leads to
It crosses and forms nanoscale precipitated phase/particle in matrix to occur.Such precipitation particles in heat treatable aluminum alloy can pass through
Method comprising the following steps are formed: solution heat treatment (wherein solvable phased soln) is followed by artificial aging process, because slow
Slow hardening consolidates main alloying elements in rate process and forms eutectic phase.For example, in Fig. 1, it is shown that the 20 vs. time of temperature
22.Casting temperature is shown at 24, and environment temperature or room temperature are shown at 26.Aluminium for strengthening in the component with thin-walled closes
First heat treatment 30 of gold is shown as dotted line.First heat treatment 30 represents T5 tempering heat treatment.First heat treatment 30 of aluminium alloy
Start at cast temperature 24.Then, with the aluminium alloy part Slow cooling of thin-walled, it can be at or be slightly above until it reaches
The second temperature 32(of room temperature 26 is shown as being higher than room temperature).Then, first heat treatment 30 in heat the aluminium alloy part so as to
Artificial aging and age-hardening are carried out, carries out the first predetermined amount of time 36 in the case where third increases temperature 34.In artificial aging and
In age-hardening process, in the aluminium alloy part with thin-walled, main alloying elements are formed altogether during slow solidification
Crystal phase.
The second heat treatment 40 for strengthening the aluminium alloy part with thin-walled is shown as solid line, and is according to the disclosure
Some aspects method an exemplary implementation scheme.After being cast under casting temperature 24, the aluminium with thin-walled is closed
Golden component is quenched by initial hardening heat 42, to be quickly cooled to the 4th temperature 44 less than or equal to about 50 DEG C.4th
Temperature 44 may be at or slightly above room temperature 26.Quenching can to avoid or reduce to the greatest extent and form certain precipitatings in certain aluminium alloys
Product, such as Mg2Si.Although initial hardening heat 42 can change according to composition of alloy, in certain variants, it is greater than or waits
In about 425 DEG C.As understood by those skilled in the art, equal to the described all temperature of aluminium alloy processing herein
It can be changed according to the composition of aluminium alloy.
It can be quenched by contacting alloy with cooling medium.It in some aspects, can be by by aluminium alloy/pressure
Casting is flooded or is immersed into cooling medium, as realized contact in cooling medium (such as water and/or liquid nitrogen) bath or mobile stream.
It in other aspects, can be by being cooled down by spraying with cooling medium to aluminium alloy.In some aspects, this by spraying can be via
Nozzle pressurization and guidance.Cooling medium can be the form of gas, steam or mist, liquid and/or solid.The cooling medium is led
It is contacted to aluminium alloy part surface or with aluminium alloy part surface, to induce cooling and quenching under required cooling rate.
In an example, cooling rate can be greater than or equal to about 100 DEG C/sec.Quenching process can be needed only as a result,
Such as aluminium alloy was cooled to room temperature 26 by about 500 DEG C of casting temperature 24 in 3 to 5 seconds.
After being cooled to the 4th temperature 44, the second heat treatment 40 includes the artificial aging carried out by heating aluminium alloy part
And age-hardening, the second predetermined amount of time 48 is carried out at the 5th raising temperature 46.In artificial aging and age-hardening process
In, main alloying elements form eutectic phase during slow solidification, to form magnesium silicide in aluminium alloy matrix
(Mg2Si) particle.It is worth noting that, the second predetermined amount of time 48 is less than the first predetermined amount of time 36.Equally, third temperature 34
Higher than the 5th temperature 46.As a result, after quenching process during the second heat treatment 40,30 can be heat-treated with conventional first
Artificial aging and age-hardening are carried out at relatively low temperature and/or with the shorter time in (such as T5 heat treatment).Such as this
Field the skilled person will understand that as, second heat treatment 40 during temperature it is significant lower in the case where, then second
Predetermined amount of time 48 may need longer.In the higher situation of the 5th temperature 46, then the second predetermined amount of time 48 may be short
Much.The 5th temperature 46 can be identical as third temperature 34 as a result, but this to will lead to the second predetermined amount of time 48 advantageously bright
Aobvious shorter than the first predetermined amount of time 36.
In some aspects, the 5th temperature 46 is greater than or equal to about 150 DEG C, and which promote the magnesium silicides in aluminium alloy matrix
(Mg2Si) the formation of particle.In certain variants, the 5th temperature 46 can be greater than or equal to about 155 DEG C to less than or be equal to
About 220 DEG C.The disclosure thus provides the artificial aging method that precipitation-hardening is realized in pack alloy.
In some aspects, of the invention to cast to form after thin wall component the method for being heat-treated selected aluminium alloy and give birth to
At solid Al-alloy metal component or part with substantially homogeneous microstructure (such as eliminate segregation and band-like).In addition,
More solutes and alloying ingredients can be distributed in metal matrix.In traditional high pressure die casting technique, alloying ingredients with
The concentration of the metal is not necessarily uniform, because there may be inhomogeneities.But in some aspects, according to disclosed method shape
At aluminium alloy part or part can have homogeneous and essentially homogeneous composition, wherein the even concentration of ingredient is spread over entirely
In component or part.In such variant, aluminium alloy part can have substantially homogeneous microstructure, it is meant that the microcosmic knot
Structure is substantially identical microstructure, composition, crystal boundary and crystallite dimension in whole region or solid phase.Such microstructure
Result in higher ductility and higher intensity in casting.In some aspects, magnesium silicide (Mg2Si) can substantially homogeneously divide
Cloth is in the entire aluminium alloy matrix of the die casting.
It (such as is stretched as described above, selecting alloy that can be formed according to the principle of the disclosure with excellent intensity and ductility
Long rate) solid light aluminum alloy metal parts or part.Die casting aluminium of the disclosed method especially suitable for high or middle ductility
Alloy component.In some aspects, disclosed method includes artificial aging to realize the precipitation-hardening of pack alloy, to mention
For the improvement of about 40 MPa to about 50 MPa of yield strength, while it will not be substantially reduced or sacrifice ductility.Basis as a result,
The casting solid aluminium alloy part that some aspects of the disclosure are formed can have the elongation more than or equal to about 5%.
In some aspects, elongation, which may optionally be, is greater than or equal to about 6%, is optionally greater than or is equal to big in certain variants
About 7%.
High-strength casting solid aluminium alloy part can have the yield strength more than or equal to 150 MPa.In certain changes
In body, high strength cast aluminum alloys component have more than or equal to about 175 MPa, be optionally greater than or be equal to about 200 MPa,
Yield strength with being optionally greater than in certain variants or equal to about 225 MPa.
In other aspects, high-strength casting solid aluminium alloy part can have more than or equal to about 175 MPa, optionally
More than or equal to about 200 MPa, be optionally greater than or equal to about 225 MPa, be optionally greater than or be equal to about 250 MPa, appoint
Choosing is greater than or equal to about 275 MPa and is optionally greater than in certain variants or the ultimate tensible strength equal to about 280 MPa
Degree.
In the case where specific heat treatable aluminum alloy, method of the invention is particularly advantageous.In a variant, the aluminium
Alloy includes aluminium alloy more than or equal to about 6.5 mass % to less than or the silicon (Si) equal to about 15.5 mass %, aluminium conjunction
Gold be greater than or equal to about 0.1 mass % to less than or copper (Cu) equal to about 3.5 mass %, aluminium alloy be less than or equal to
The magnesium (Mg) of about 0.5 mass %, the manganese (Mn) less than or equal to about 0.6 mass % of aluminium alloy and/or aluminium alloy are less than
Or the chromium (Cr) equal to about 0.6 mass %.In some aspects, which can further include less than or equal to about 1.3
The iron (Fe) of weight %, the titanium (Ti) less than or equal to about 0.15 mass % of aluminium alloy, aluminium alloy less than or equal to about
The strontium (Sr) of 0.08 mass % and/or phosphorus (P) less than or equal to about 0.003 weight %.It is remaining in these any composition of alloy
Amount is aluminium.In addition, impurity exists with the accumulative less than or equal to about 0.1 mass % of aluminium alloy.Such composition is shown in table 1
In.
Table 1
| Si (quality %) | Fe (quality %) | Cu (quality %) | Mg (quality %) | Mn (quality %) | Cr (quality %) | Ti (quality %) | Sr (quality %) | P (quality %) | Surplus | |
| Alloy | 6.5-15.5 | <1.3 | 0.1-3.5 | <0.5 | <0.6 | <0.6 | <0.15 | <0.08 | <0.003 | Al |
In another variant, which includes aluminium alloy more than or equal to about 8.5 mass % to less than or equal to big
The silicon of about 10.5 mass %, aluminium alloy are greater than or equal to about 0.8 mass % to less than or copper, aluminium equal to about 1.5 mass %
Alloy be greater than or equal to about 0.1 mass % to less than or the magnesium equal to about 0.5 mass %, aluminium alloy be greater than or equal to it is big
About 0.1 mass % to less than or the chromium equal to about 0.6 mass %, and/or aluminium alloy be greater than or equal to about 0.4 mass % extremely
Less than or equal to about the manganese of 0.6 mass %.In some aspects, the aluminium alloy can further include less than or equal to about
The iron (Fe) of 0.25 weight %, aluminium alloy are greater than or equal to about 0.05 mass % to less than or the titanium equal to about 0.1 mass %
(Ti), aluminium alloy be greater than or equal to about 0.01 mass % to less than or the strontium (Sr) equal to about 0.015 mass %, and/or
Phosphorus (P) less than or equal to about 0.003 weight %.In these any composition of alloy, surplus is aluminium.In addition, impurity is closed with aluminium
The accumulative less than or equal to about 0.1 mass % of gold exists.Such composition is shown in table 2.
Table 2
| Si (quality %) | Fe (quality %) | Cu (quality %) | Mg (quality %) | Mn (quality %) | Cr (quality %) | Ti (quality %) | Sr (quality %) | P (quality %) | Surplus | |
| Alloy | 8.5-10.5 | <0.25 | 0.8-1.5 | 0.1-0.5 | 0.4-0.6 | 0.1-0.6 | 0.05-0.1 | <0.08 | <0.003 | Al |
In certain variants, the disclosure contemplates the method for being heat-treated pressure casting aluminium alloy part.This method includes die casting aluminium
Alloy is to form the die casting at least one thin-wall regions.In some aspects, which, which can have, is less than or waits
In the thickness of about 5 mm.The aluminium alloy can be any one of heat treatable those described above.In some aspects, which closes
Gold comprising aluminium alloy be greater than or equal to about 6.5 mass % to less than or the silicon equal to about 15.5 mass %, aluminium alloy it is big
In or equal to about 0.1 mass % to less than or the copper equal to about 3.5 mass %, aluminium alloy less than or equal to about 0.5 matter
Measure the magnesium of % and the manganese less than or equal to about 0.6 mass % of aluminium alloy.
This method, which may further include, quenches the die casting under the cooling rate more than or equal to about 100 DEG C/sec
Fire to less than 50 DEG C of the first temperature.It then, can be by the way that the die casting to be heated to second more than or equal to about 150 DEG C
One section of scheduled duration of temperature is to promote to form magnesium silicide (Mg in aluminium alloy matrix2Si) particle carrys out the age-hardening pressure
Casting.
In some aspects, which further includes iron less than or equal to about 1.3 weight %, aluminium alloy is less than
Or the titanium, aluminium alloy equal to about 0.15 mass % the strontium less than or equal to about 0.08 mass %, less than or equal to about
The phosphorus of 0.003 weight % and the aluminium of surplus.
In certain other aspects, second temperature is more than or equal to about 155 DEG C to less than or equal to about 220 DEG C.
In other aspects, which has the yield strength more than or equal to about 150 MPa.
In certain other aspects, which has the ultimate tensile strength more than or equal to about 280 MPa.
In other aspects again, which has ductility or elongation more than or equal to about 5%.
In some aspects, magnesium silicide (Mg2Si) particle is distributed generally uniformly in the aluminium alloy matrix of the die casting.It should
Method includes pack alloy to form the die casting at least one thin-wall regions.In some aspects, which can
To have the thickness less than or equal to about 5 mm.The aluminium alloy can be any one of heat treatable those described above.?
In some terms, the aluminium alloy includes aluminium alloy more than or equal to about 8.5 mass % to less than or equal to about 10.5 mass %
Silicon, aluminium alloy be greater than or equal to about 0.8 mass % to less than or copper equal to about 1.5 mass %, aluminium alloy be greater than
Or equal to about 0.1 mass % to less than or magnesium equal to about 0.5 mass %, aluminium alloy be greater than or equal to about 0.1 mass %
To less than or the chromium equal to about 0.6 mass % and aluminium alloy be greater than or equal to about 0.4 mass % to less than or be equal to about
The manganese of 0.6 mass %.
This method can also include being quenched to the die casting under the cooling rate more than or equal to about 100 DEG C/sec
The first temperature less than 50 DEG C, and by the way that the die casting to be heated to one section of the second temperature more than or equal to about 150 DEG C in advance
The duration is determined to promote to form magnesium silicide (Mg in aluminium alloy matrix2Si) particle carries out age-hardening.
In some aspects, which further includes iron less than or equal to about 0.25 weight %, aluminium alloy is greater than
Or equal to about 0.05 mass % to less than or titanium equal to about 0.1 mass %, aluminium alloy be greater than or equal to about 0.01 matter
Measure % to less than or the strontium equal to about 0.015 mass %, the phosphorus less than or equal to about 0.003 weight % and surplus aluminium.
In certain other aspects, second temperature is more than or equal to about 155 DEG C to less than or equal to about 220 DEG C.
In other aspects, which has the yield strength more than or equal to about 150 MPa.
In certain other aspects, which has the ultimate tensile strength more than or equal to about 280 MPa.
In other aspects again, which has ductility or elongation more than or equal to about 5%.
In certain other aspects, the disclosure contemplates the method for manufacturing vehicle part.This method may include using aluminium alloy
Die casting vehicle part is to form the die casting at least one thin-wall regions.In some aspects, which has and is less than
Or the thickness equal to about 5 mm.The aluminium alloy can be above it is aforementioned those any one of.In a variant, the aluminium
Alloy may include aluminium alloy be greater than or equal to about 8.5 mass % to less than or the silicon equal to about 10.5 mass %, aluminium close
Gold be greater than or equal to about 0.8 mass % to less than or the copper equal to about 1.5 mass %, aluminium alloy be greater than or equal to about
0.1 mass % to less than or the magnesium equal to about 0.5 mass %, being greater than or equal to for aluminium alloy about 0.4 mass % to less than or wait
It is greater than or equal to about 0.1 mass % to less than or equal to about 0.6 mass %'s in the manganese of about 0.6 mass %, aluminium alloy
Chromium, aluminium alloy be greater than or equal to about 0.05 mass % to less than or the titanium equal to about 0.1 mass %, aluminium alloy be greater than or
Equal to about 0.01 mass % to less than or the strontium equal to about 0.015 mass %, the iron less than or equal to about 0.25 weight %,
The aluminium of phosphorus and surplus less than or equal to about 0.003 weight %.
In some aspects, which is selected from car column, hinge pillar, panel, door panel, door components, interior bottom
Storage tank, luggage case, luggage case between plate, chassis, roof, outer surface, vehicle bottom backplate, wheel, storing part, glove compartment, seat
Plate, luggage case compartment, lampshade, shock tower, shock tower top cap, control arm, suspension parts, power train part, engine mounting branch
Frame, gearbox mount bracket, alternator support, air condition compressor bracket, front panel and combinations thereof.
The above description of embodiment is provided for the purpose of illustration and description.It is not intended to as exhaustive
Or the limitation disclosure.The individual element or feature of specific embodiment are typically not limited to the specific embodiment, but are being applicable in
In the case where can be interchanged, and can be used for selected embodiment, even and if being not specifically shown or described.It can also be with many sides
Formula changes.Such variant is not to be regarded as deviateing the disclosure, and all such modifications are intended to include within the scope of this disclosure.
Claims (20)
1. the method for being heat-treated pressure casting aluminium alloy part, which comprises
Pack alloy is described to form the die casting at least one thickness less than or equal to about the thin-wall regions of 5 mm
Aluminium alloy includes:
The aluminium alloy is greater than or equal to about 6.5 mass % to less than or the silicon equal to about 15.5 mass %；
The aluminium alloy is greater than or equal to about 0.1 mass % to less than or the copper equal to about 3.5 mass %；
The chromium less than or equal to about 0.6 mass % of the aluminium alloy；
The magnesium less than or equal to about 0.5 mass % of the aluminium alloy；With
The manganese less than or equal to about 0.6 mass % of the aluminium alloy；
More than or equal to the first temperature being quenched to the die casting under about 100 DEG C/sec of cooling rate less than 50 DEG C；
With
By the way that the die casting is heated to one section of scheduled duration of second temperature more than or equal to about 150 DEG C to promote
Into the formation magnesium silicide (Mg in aluminium alloy matrix2Si) particle carries out age-hardening.
2. the method for claim 1 wherein the aluminium alloys to further include:
Less than or equal to about the iron of 1.3 weight %；
The titanium less than or equal to about 0.15 mass % of the aluminium alloy；
The strontium less than or equal to about 0.08 mass % of the aluminium alloy；
Less than or equal to about the phosphorus of 0.003 weight %；And have
The aluminium of surplus.
3. the method for claim 1 wherein the second temperature is more than or equal to about 155 DEG C to less than or to be equal to about
220℃。
4. the method for claim 1 wherein the die castings to have the yield strength more than or equal to about 150 MPa.
5. the method for claim 1 wherein the die castings to have the ultimate tensile strength more than or equal to about 280 MPa.
6. the method for claim 1 wherein the die castings to have the ductility more than or equal to about 5%.
7. the method for claim 1 wherein the magnesium silicide (Mg2Si) particle is distributed generally uniformly in the aluminium of the die casting
In alloy substrate.
8. the method for being heat-treated pressure casting aluminium alloy part, which comprises
Pack alloy is described to form the die casting at least one thickness less than or equal to about the thin-wall regions of 5 mm
Aluminium alloy includes:
The aluminium alloy is greater than or equal to about 8.5 mass % to less than or the silicon equal to about 10.5 mass %；
The aluminium alloy is greater than or equal to about 0.8 mass % to less than or the copper equal to about 1.5 mass %；
The aluminium alloy is greater than or equal to about 0.1 mass % to less than or the magnesium equal to about 0.5 mass %；
The aluminium alloy is greater than or equal to about 0.4 mass % to less than or the manganese equal to about 0.6 mass %；With
The aluminium alloy is greater than or equal to about 0.1 mass % to less than or the chromium equal to about 0.6 mass %；And
More than or equal to the first temperature being quenched to the die casting under about 100 DEG C/sec of cooling rate less than 50 DEG C；
With
By the way that the die casting is heated to one section of scheduled duration of second temperature more than or equal to about 150 DEG C to promote
Into the formation magnesium silicide (Mg in aluminium alloy matrix2Si) particle carries out age-hardening.
9. method for claim 8, wherein the aluminium alloy further includes:
Less than or equal to about the iron of 0.25 weight %；
The aluminium alloy is greater than or equal to about 0.05 mass % to less than or the titanium equal to about 0.1 mass %；
The aluminium alloy is greater than or equal to about 0.01 mass % to less than or the strontium equal to about 0.015 mass %；
Less than or equal to about the phosphorus of 0.003 weight %；And have
The aluminium of surplus.
10. method for claim 8, wherein the second temperature is more than or equal to about 155 DEG C to less than or to be equal to about
220℃。
11. method for claim 8, wherein the die casting has the yield strength more than or equal to about 150 MPa.
12. method for claim 8, wherein the die casting has the ultimate tensile strength more than or equal to about 280 MPa.
13. method for claim 8, wherein the die casting has the ductility more than or equal to about 5%.
14. method for claim 8 the, wherein magnesium silicide (Mg2Si) particle is distributed generally uniformly in aluminium alloy matrix.
15. the method for manufacturing vehicle part, which comprises
With aluminium alloy compression casting vehicle part to be formed with thin-wall regions of at least one thickness less than or equal to about 5 mm
Die casting, wherein the aluminium alloy includes:
The aluminium alloy is greater than or equal to about 8.5 mass % to less than or the silicon equal to about 10.5 mass %；
The aluminium alloy is greater than or equal to about 0.8 mass % to less than or the copper equal to about 1.5 mass %；
The aluminium alloy is greater than or equal to about 0.1 mass % to less than or the magnesium equal to about 0.5 mass %；
The aluminium alloy is greater than or equal to about 0.4 mass % to less than or the manganese equal to about 0.6 mass %；
The aluminium alloy is greater than or equal to about 0.1 mass % to less than or the chromium equal to about 0.6 mass %；
The aluminium alloy is greater than or equal to about 0.05 mass % to less than or the titanium equal to about 0.1 mass %；
The aluminium alloy is greater than or equal to about 0.01 mass % to less than or the strontium equal to about 0.015 mass %；
Less than or equal to about the iron of 0.25 weight %；
Less than or equal to about the phosphorus of 0.003 weight %；With
The aluminium of surplus；
More than or equal to the die casting vehicle part is quenched under about 100 DEG C/sec of cooling rate less than 50 DEG C the
One temperature；With
When by the way that the die casting vehicle part being heated to continue scheduled more than or equal to one section of second temperature of about 150 DEG C
Between with promote in aluminium alloy matrix formed magnesium silicide (Mg2Si) particle carries out age-hardening.
16. the method for claim 15, wherein the vehicle part is selected from: car column, hinge pillar, panel, door panel, car door portion
Storage tank between part, interior bottom plate, chassis, roof, outer surface, vehicle bottom backplate, wheel, storing part, glove compartment, seat, luggage case,
Baggage compartment floor, lampshade, shock tower, shock tower top cap, control arm, suspension parts, power train part, starts luggage case compartment
Machine mounting bracket, gearbox mount bracket, alternator support, air condition compressor bracket, front panel and combinations thereof.
17. the method for claim 15, wherein the second temperature is more than or equal to about 155 DEG C to less than or to be equal to about
220℃。
18. the method for claim 15, wherein the die casting has the yield strength more than or equal to about 150 MPa.
19. the method for claim 15, wherein the die casting has the ductility more than or equal to about 5%.
20. the method for claim 15, wherein the magnesium silicide particle (Mg2Si it) is distributed generally uniformly in aluminium alloy matrix.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/109172 WO2018103065A1 (en) | 2016-12-09 | 2016-12-09 | Artificial aging process for aluminum-silicon alloys for die cast components |
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| CN110023524A true CN110023524A (en) | 2019-07-16 |
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| US (1) | US20190276919A1 (en) |
| CN (1) | CN110023524A (en) |
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| WO (1) | WO2018103065A1 (en) |
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| WO2018161311A1 (en) | 2017-03-09 | 2018-09-13 | GM Global Technology Operations LLC | Aluminum alloys |
| US20220174865A1 (en) | 2020-12-04 | 2022-06-09 | Scythe Robotics, Inc. | Autonomous lawn mower |
| CN117187631A (en) * | 2022-05-31 | 2023-12-08 | 通用汽车环球科技运作有限责任公司 | Vehicle including a recyclable cast aluminum alloy component and method of manufacturing an aluminum alloy component from a recycled vehicle component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876867A (en) * | 2006-07-07 | 2006-12-13 | 瑞明集团有限公司 | Aluminium front cover and manufacturing process thereof |
| CN101121978A (en) * | 2007-09-29 | 2008-02-13 | 深圳市富亿通精密科技有限公司 | High electric-conductivity heat-conductivity high-strength aluminum alloy material, preparation method and application thereof |
| CN101365817A (en) * | 2005-10-28 | 2009-02-11 | 汽车铸造技术公司 | A high crashworthiness al-si-mg alloy and methods for producing automotive casting |
| CN105874090A (en) * | 2013-12-20 | 2016-08-17 | 美铝公司 | High performance alsimgcu casting alloy |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042727A1 (en) * | 2004-08-27 | 2006-03-02 | Zhong Li | Aluminum automotive structural members |
| CN101514409B (en) * | 2009-03-31 | 2012-05-09 | 南昌大学 | In situ Mg2Preparation method of Si particle reinforced metal matrix composite material |
| CN101644203A (en) * | 2009-08-21 | 2010-02-10 | 重庆长安汽车股份有限公司 | Aluminium casting alloy cylinder cap |
| CN102758155B (en) * | 2012-06-19 | 2014-12-31 | 南昌大学 | Heat treatment method of Al-Si-Mg-Sm rare earth cast aluminum alloy |
-
2016
- 2016-12-09 CN CN201680091430.6A patent/CN110023524A/en active Pending
- 2016-12-09 DE DE112016007434.4T patent/DE112016007434T5/en not_active Withdrawn
- 2016-12-09 WO PCT/CN2016/109172 patent/WO2018103065A1/en active Application Filing
- 2016-12-09 US US16/348,864 patent/US20190276919A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365817A (en) * | 2005-10-28 | 2009-02-11 | 汽车铸造技术公司 | A high crashworthiness al-si-mg alloy and methods for producing automotive casting |
| CN1876867A (en) * | 2006-07-07 | 2006-12-13 | 瑞明集团有限公司 | Aluminium front cover and manufacturing process thereof |
| CN101121978A (en) * | 2007-09-29 | 2008-02-13 | 深圳市富亿通精密科技有限公司 | High electric-conductivity heat-conductivity high-strength aluminum alloy material, preparation method and application thereof |
| CN105874090A (en) * | 2013-12-20 | 2016-08-17 | 美铝公司 | High performance alsimgcu casting alloy |
Non-Patent Citations (2)
| Title |
|---|
| 丁科等: "铝合金中Mg2Si相的时效析出过程", 《特种铸造及有色合金》 * |
| 邓小民著: "《金属挤压加工实用技术手册》", 31 May 2013, 合肥：合肥工业大学出版社 * |
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| WO2018103065A1 (en) | 2018-06-14 |
| US20190276919A1 (en) | 2019-09-12 |
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