CN108384995A - Die casting contains Ca and Mg aluminium alloys and its processing technology with high-damping - Google Patents
Die casting contains Ca and Mg aluminium alloys and its processing technology with high-damping Download PDFInfo
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- CN108384995A CN108384995A CN201810220000.0A CN201810220000A CN108384995A CN 108384995 A CN108384995 A CN 108384995A CN 201810220000 A CN201810220000 A CN 201810220000A CN 108384995 A CN108384995 A CN 108384995A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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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
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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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
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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
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- Crystallography & Structural Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention discloses die casting high-dampings to contain Ca and Mg aluminium alloys and its processing technology.According to weight percent, the ingredient of the alloy is：Ca:0.8‑1.5wt.%,Mg:2.0‑8.0wt.%；Sn:3.0‑5.0wt.%,Y:0.5 1.2wt.%, Mo:0.4‑0.6wt.%,Be:0.2 0.5wt.%, surplus are aluminium.The kalzium metal has excellent die casting performance, and has excellent damping capacity.It is expected that there is positive meaning with promotion to the development of the even entire Die Casting Industry of aluminum alloy die-casting technological and its technology.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of kalzium metal.
Background technology
Aluminium alloy is the new material inexpensive, energy saving, of fine quality that domestic and international application is increasingly extensive in recent decades.It has anti-
It is excellent that tensile strength and hardness are high, damping and amortization is good, wearability is good, friction coefficient is small, friction Temperature Rise is low, material and manufacturing cost are cheap etc.
Point.Meanwhile also there is good processing performance, die casting is cannot be only used for, sand mold, metal mold, graphite mould, continuous casting are applied also for
Deng.Cast aluminium alloy gold is to fill casting mold with molten metal, obtains the aluminium alloy of variously-shaped part blank.Cast aluminium alloy gold has
Complex-shaped part can be made in good casting character；Huge optional equipment is not needed；With saving metal, reduce
It cost, the advantages that reducing work hours, is used widely in aircraft industry and civilian industry.With low-density, specific strength is higher, resists
Corrosion and casting manufacturability are good, and the advantages that small is limited by structural design of fittings.Most of be heat-treated is strengthened with reaching
Alloy eliminates the purpose of casting internal stress, stabilizing tissue and accessory size.
Aluminium alloy is widely used in fascia, seat support, gear box casing, direction control system by developed country
On the parts such as component, engine bonnet, car door, engine cylinder body, frame.Auto parts and components, Ke Yixian are manufactured with aluminium alloy
It writes and mitigates car weight, reduce oil consumption, reduce exhaust emissions amount, improve the integrated level of parts, improve the flexibility etc. of Automobile Design.
Aluminium alloy compression casting is most light in all diecasting alloys, is the light weight material in automobile of pole competitiveness, a large amount of aluminum alloy spare part
It is produced, to replace modeling, aluminium alloy or even steel components.With the development of technology, application of the aluminium alloy in automotive field
Range can be wider.
The progress of new technology has pushed the development of the material technologies such as the smelting of aluminium, alloying, simultaneously because aluminium alloy makes
It is constantly challenged with field, new requirement is constantly proposed to the performance of aluminium and aluminium alloy, therefore aluminium alloy is also evolving
To adapt to the needs of industrial development.Although China's aluminium alloy compression casting industry has prodigious resources advantage, most at present
Aluminium alloy compression casting enterprise, be all made of traditional aluminium diecasting alloy.The die-casting process of this kind of traditional material is largely led to
Process goal could finally be realized by crossing a large amount of, macrocyclic repetition test modification.Therefore in casting mold development cycle, cast design matter
Amount and its processing quality etc. realized relatively are difficult to guarantee so that enterprise also can not obtain bigger in market with keen competition
Breakthrough.
High-quality die-casting aluminium alloy is developed for promoting China's independent research fine work new material, captures international fine work green wood
Expect that market has facilitation.The innovation and optimization for carrying out bottom property with aluminium alloy to conventional cast, to aluminium alloy compression casting work
The development of the even entire Die Casting Industry of skill and its technology has positive meaning with promotion.Oneself external die casting through exploitation is with novel
Aluminium alloy casting character and damping capacity can't be satisfactory.Exploitation, which has suitable die-casting material high damping aluminium alloy, two
Kind method, one is alloying element is added by solution strengthening to strengthen matrix, another kind is by the way that second-phase strength phase is added
Form aluminum matrix composite.The casting character that can greatly improve aluminium alloy is added in aluminium alloy as alloy element by Ca and Mg
And damping capacity.With the rapid industrial development in our country, exploitation die casting has become certainty with novel aluminum alloy.
But Ca belongs to active element, be easy to carry out violent reaction with oxygen or nitrogen under atmospheric environment and
Generate burning or explosion.During aluminum alloy smelting, the oxidizing fire of aluminium calcium melt, is usually adopted in traditional in order to prevent
With protective gas or flux protection melting.But the use of both methods all because its exist be difficult to avoid that defect due to by
To limitation.Such as it is also easy to produce toxic gas pollution environment and flux is caused to be mingled with and damage alloy property.And flux is mingled with appearance
Easily become the source of corrosion of product in use, accelerated material corrosion reduces the service life.In addition, villaumite in flux and
Villiaumite is volatile at high temperature to generate certain strong corrosive gases, destroys workshop, equipment and ecological environment.Currently advanced is fire-retardant
Method is the fire-retardant method of alloy, and mechanism is that specific alloying element is added during aluminium alloy smelting to influence alloy oxidation
Thermodynamical reaction and dynamic process, form dense oxidation film and nitride film with protective effect, reach and prevent alloy acute
The purpose of strong oxidation and nitridation, and the tendency of oxidizing fire of kalzium metal during following process substantially reduces, to
Improve the process safety of kalzium metal.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provide one kind can under 700-800 degree atmospheric conditions into
The die casting of row melting contains Ca and Mg aluminium alloys and its processing technology with high-damping.And it is finally produced in the alloy of this temperature range melting
Product not only have excellent die casting performance, and damping capacity is also significantly larger than existing aluminium alloy.This method, which also has, to be produced into
This is low, the characteristics of being convenient for mass producing.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of die casting high-damping aluminium alloy containing Ca and Mg.By weight percentage, the group of alloy becomes：Ca: 0.8-
1.5wt.%,Mg:2.0-8.0wt.%；Sn:3.0-5.0wt.%,Y:0.5-1.2wt.%, Mo:0.4-0.6wt.%, Be:0.2-
0.5wt.%, surplus are aluminium.The kalzium metal is in fusion process because the weight for volatilizing and forming the reasons such as clinker and losing exists
1.0-3.0wt.% or so.
The preparation method of above-mentioned die casting high heat conduction aluminium alloy containing Ca and Re, includes the following steps：The original that will as above match
Material is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating is molten to 700-800 degree formation alloy
Liquid, and be sufficiently stirred 10 minutes or so using electromagnetic agitation effect；Alloy liquid is stood after ten minutes in the heat preservation of 700-800 degree
It is cast in the same level equipment of heat top and carries out semi-continuous casting into required side's ingot and billet, it is 5-10m/ that ingot casting, which moves down speed,
min.The ingot casting can prepare the kalzium metal casting of complicated shape as cast raw material for the compression casting of subsequent handling；
The last heat treatment procedure of these casting is：Vacuum solid solution handles 270 degree, 2.1 hours；Vacuum aging handles 190 degree, and 1.5 is small
When.
Compared with prior art, the present invention has the advantages that：
（1）Patent of the present invention is carried for the state bad currently used for the cold chamber die casting performance and damping capacity of aluminium diecasting alloy
A kind of novel materialogy solution is supplied.The alloy has extremely excellent flame retardant property, can reach in 700-800 temperature
It spends in range and stands 5 hours without significantly burning under atmospheric environment.It is molten liquid alloy being stirred, being blown etc.
In body processing procedure, after its skin covering of the surface is destroyed because being vigorously stirred, energy rapid regeneration successfully hinders the burning of alloy.And it should
Kalzium metal is in fusion process because the weight for volatilizing and forming the reasons such as clinker and losing is less than 3.0wt.% or so.
（2）The novel aluminium diecasting alloy of this patent design has good fluidity, and filling performance is favourable, shrinkage cavity formability
It is small, the advantages that molten metal is inspiratory small.With low liquid-solid phase solidification temperature range, hot cracking tendency is big when can solve to cast,
Casting cavity is low with loose apparent product yield rate to wait technical barriers.Although existing aluminium diecasting alloy is easy to die casting, but right
For thin wall of the thickness less than 1mm, casting fluidity is insufficient.Common problem is that yields is low, appearance of surface
Quality defect, surface is susceptible to the casting flaws such as streamline trace, spot, loose, it is difficult to ensure that product surface is bright and clean smooth
Quality requirement, and prodigious surface dressing work load is brought, increase production cost.Die casting aluminium provided by the invention closes
Gold, not only significantly improves the die casting yield rate of aluminum products, but also successfully can be less than the ultrathin aluminium of 0.08mm by die casting thickness
Product.
（3）The product also has excellent mechanical property, and tensile strength can reach 580-640Mpa, and conventional cast is used
The tensile strength of aluminium alloy maintains 320Mpa or less.At room temperature, the damped coefficient of the material（SDC）12-18 can be reached.
And the damped coefficient of common aluminium diecasting alloy is usually less than 2%.In addition, the material reduces 2- than the density of traditional acieral
4% or so.Thus, which is expected that significant effect will be generated for shock-damping structure part.
Specific implementation mode
Embodiment 1
One kind is in 750 degree of melting die casting high-damping aluminium alloy containing Ca and Mg.By weight percentage, the chemical composition of alloy
For：Ca: 1.2wt.%,Mg:3.5wt.%；Sn:4.2wt.%,Y:0.9wt.%, Mo:0.5wt.%, Be:0.3wt.%, surplus are
Aluminium.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide earthenware
Crucible；Sensing heating forms alloy solution to 750 degree, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By aluminium alloy
Body kept the temperature at 750 degree standing be cast to after ten minutes in the same level equipment of heat top carry out semi-continuous casting at required side's ingot and
Billet, it is 8m/min that ingot casting, which moves down speed,.The ingot casting can be prepared as cast raw material for the compression casting of subsequent handling
The kalzium metal casting of complicated shape；The last heat treatment procedure of these casting is：Vacuum solid solution handles 270 degree, 2.1 hours；
Vacuum aging handles 190 degree, 1.5 hours.
The novel aluminium diecasting alloy of this patent design has good fluidity, and filling performance is favourable, shrinkage cavity formability is small,
The advantages that molten metal is inspiratory small.With low liquid-solid phase solidification temperature range, hot cracking tendency is big when can solve to cast, casting
The low equal technical barriers of empty and loose apparent product yield rate.Although existing aluminium diecasting alloy is easy to die casting, but for thickness
For thin wall of the degree less than 1mm, casting fluidity is insufficient.Common problem is that yields is low, presentation quality of surface
Not good enough, surface is susceptible to the casting flaws such as streamline trace, spot, loose, it is difficult to ensure that the bright and clean smooth quality of product surface
It is required that and bring prodigious surface dressing work load, increase production cost.Pack alloy provided by the invention, no
It only significantly improves the die casting yield rate of aluminum products, and successfully can be less than the ultrathin aluminum products of 0.05mm by die casting thickness.
The product also has excellent mechanical property, and tensile strength can reach 592Mpa, and the tension of conventional cast aluminium alloy is strong
Degree maintains 320Mpa or less.At room temperature, the damped coefficient of the material（SDC）14 can be reached.And common die casting is closed with aluminium
The damped coefficient of gold is usually less than 2%.In addition, the material reduces by 2.5% or so than the density of traditional acieral.Thus, the material
Material is expected that significant effect will be generated for shock-damping structure part.
Embodiment 2
One kind is in 770 degree of melting die casting high-damping aluminium alloy containing Ca and Mg.By weight percentage, the chemical composition of alloy
For：Ca: 0.9wt.%,Mg:6.4wt.%；Sn:4.5wt.%,Y:0.9wt.%, Mo:0.5wt.%, Be:0.3wt.%, surplus are
Aluminium.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide earthenware
Crucible；Sensing heating forms alloy solution to 770 degree, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By aluminium alloy
Body kept the temperature at 770 degree standing be cast to after ten minutes in the same level equipment of heat top carry out semi-continuous casting at required side's ingot and
Billet, it is 8m/min that ingot casting, which moves down speed,.The ingot casting can be prepared as cast raw material for the compression casting of subsequent handling
The kalzium metal casting of complicated shape；The last heat treatment procedure of these casting is：Vacuum solid solution handles 270 degree, 2.1 hours；
Vacuum aging handles 190 degree, 1.5 hours.
The novel aluminium diecasting alloy of this patent design has good fluidity, and filling performance is favourable, shrinkage cavity formability is small,
The advantages that molten metal is inspiratory small.With low liquid-solid phase solidification temperature range, hot cracking tendency is big when can solve to cast, casting
The low equal technical barriers of empty and loose apparent product yield rate.Although existing aluminium diecasting alloy is easy to die casting, but for thickness
For thin wall of the degree less than 1mm, casting fluidity is insufficient.Common problem is that yields is low, presentation quality of surface
Not good enough, surface is susceptible to the casting flaws such as streamline trace, spot, loose, it is difficult to ensure that the bright and clean smooth quality of product surface
It is required that and bring prodigious surface dressing work load, increase production cost.Pack alloy provided by the invention, no
It only significantly improves the die casting yield rate of aluminum products, and successfully can be less than the ultrathin aluminum products of 0.05mm by die casting thickness.
The product also has excellent mechanical property, and tensile strength can reach 615Mpa, and the tension of conventional cast aluminium alloy is strong
Degree maintains 320Mpa or less.At room temperature, the damped coefficient of the material（SDC）14 can be reached.And common die casting is closed with aluminium
The damped coefficient of gold is usually less than 2%.In addition, the material reduces by 2.8% or so than the density of traditional acieral.Thus, the material
Material is expected that significant effect will be generated for shock-damping structure part.
Embodiment 3
One kind is in 790 degree of melting die casting high-damping aluminium alloy containing Ca and Mg.By weight percentage, the chemical composition of alloy
For：Ca: 1.0wt.%,Mg:4.3wt.%；Sn:3.8wt.%,Y:0.9wt.%, Mo:0.5wt.%, Be:0.3wt.%, surplus are
Aluminium.The preparation method of alloy：As above the raw material matched is added in the electric induction furnace of atmosphere protection, and uses silicon carbide earthenware
Crucible；Sensing heating forms alloy solution to 790 degree, and is sufficiently stirred 10 minutes or so using electromagnetic agitation effect；By aluminium alloy
Body kept the temperature at 790 degree standing be cast to after ten minutes in the same level equipment of heat top carry out semi-continuous casting at required side's ingot and
Billet, it is 8m/min that ingot casting, which moves down speed,.The ingot casting can be prepared as cast raw material for the compression casting of subsequent handling
The kalzium metal casting of complicated shape；The last heat treatment procedure of these casting is：Vacuum solid solution handles 270 degree, 2.1 hours；
Vacuum aging handles 190 degree, 1.5 hours.
The novel aluminium diecasting alloy of this patent design has good fluidity, and filling performance is favourable, shrinkage cavity formability is small,
The advantages that molten metal is inspiratory small.With low liquid-solid phase solidification temperature range, hot cracking tendency is big when can solve to cast, casting
The low equal technical barriers of empty and loose apparent product yield rate.Although existing aluminium diecasting alloy is easy to die casting, but for thickness
For thin wall of the degree less than 1mm, casting fluidity is insufficient.Common problem is that yields is low, presentation quality of surface
Not good enough, surface is susceptible to the casting flaws such as streamline trace, spot, loose, it is difficult to ensure that the bright and clean smooth quality of product surface
It is required that and bring prodigious surface dressing work load, increase production cost.Pack alloy provided by the invention, no
It only significantly improves the die casting yield rate of aluminum products, and successfully can be less than the ultrathin aluminum products of 0.05mm by die casting thickness.
The product also has excellent mechanical property, and tensile strength can reach 602Mpa, and the tension of conventional cast aluminium alloy is strong
Degree maintains 320Mpa or less.At room temperature, the damped coefficient of the material（SDC）15 can be reached.And common die casting is closed with aluminium
The damped coefficient of gold is usually less than 2%.In addition, the material reduces by 2.8% or so than the density of traditional acieral.Thus, the material
Material is expected that significant effect will be generated for shock-damping structure part.
Claims (3)
1. a kind of die casting high-damping aluminium alloy containing Ca and Mg；According to weight percent, the ingredient of the alloy is：Ca: 0.8-
1.5wt.%,Mg:2.0-8.0wt.%；Sn:3.0-5.0wt.%,Y:0.5-1.2wt.%, Mo:0.4-0.6wt.%, Be:0.2-
0.5wt.%, surplus are aluminium.
2. die casting high-damping aluminium alloy containing Ca and Mg according to claim 1, it is characterised in that include the following steps：It will be as
The raw material of upper proportioning is added in the electric induction furnace of atmosphere protection, and uses silicon carbide crucible；Sensing heating is to 700-800 degree shapes
It is sufficiently stirred 10 minutes or so at alloy solution, and using electromagnetic agitation effect；Alloy liquid is kept the temperature in 700-800 degree and is stood
It is cast to after ten minutes in the same level equipment of heat top and carries out semi-continuous casting into required billet, it is 5- that ingot casting, which moves down speed,
10m/min。
3. die casting high-damping aluminium alloy containing Ca and Mg according to claim 1, it is characterised in that include following procedure of processing：
The ingot casting can prepare the kalzium metal casting of complicated shape as cast raw material for the compression casting of subsequent handling；These
The last heat treatment procedure of casting is：Vacuum solid solution handles 270 degree, 2.1 hours；Vacuum aging handles 190 degree, 1.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220000.0A CN108384995A (en) | 2018-03-16 | 2018-03-16 | Die casting contains Ca and Mg aluminium alloys and its processing technology with high-damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220000.0A CN108384995A (en) | 2018-03-16 | 2018-03-16 | Die casting contains Ca and Mg aluminium alloys and its processing technology with high-damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108384995A true CN108384995A (en) | 2018-08-10 |
Family
ID=63068053
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810220000.0A Withdrawn CN108384995A (en) | 2018-03-16 | 2018-03-16 | Die casting contains Ca and Mg aluminium alloys and its processing technology with high-damping |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652577A (en) * | 2021-07-06 | 2021-11-16 | 福建祥鑫股份有限公司 | AL-Ca alloy and manufacturing method thereof |
-
2018
- 2018-03-16 CN CN201810220000.0A patent/CN108384995A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652577A (en) * | 2021-07-06 | 2021-11-16 | 福建祥鑫股份有限公司 | AL-Ca alloy and manufacturing method thereof |
| CN113652577B (en) * | 2021-07-06 | 2022-06-10 | 福建祥鑫新材料科技有限公司 | AL-Ca alloy and manufacturing method thereof |
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Application publication date: 20180810 |