CN108517430A - A kind of preparation method of particle enhancing high Al-Zn base composite material - Google Patents
A kind of preparation method of particle enhancing high Al-Zn base composite material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium 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
- 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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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
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Abstract
The invention discloses the preparation methods that a kind of particle enhances high Al-Zn base composite material, and the present invention is that above two powder is uniformly mixed to silicon carbide and diamond mixed-powder particle, potassium fluotitanate.Aluminium in stove is melted, after melt heat preservation fully being stirred after being warming up to 800 DEG C 1200 DEG C in mixing powder raw material addition stove, after skimming to melt, Zn5% 60%, Cu1.2 2.5%, Mg0.05 3% is added, Mn0.3% 0.6%, melt after the fully agitation melt of Ni0.5% 3%, Cr0.3% 0.5%, Zr0.3% 0.5% is cast into various products.Invention passes through optimized alloy ingredient, refining alloy tissue on the basis of to particle reinforced zinc-based composite material alloy, significantly improve alloy mechanical property and wearability, a kind of high comprehensive performance is provided, its high-temperature mechanics and wear-resisting property can be effectively improved, is a kind of wear-resistant material being potential very much.
Description
Technical field
The invention belongs to aluminium Zinc-base compounded material field, the preparation of specifically a kind of particle enhancing high Al-Zn base composite material
Method.
Background technology
Obtain enough different particle enhanced aluminum-based composite materials, due to low with density, casting character is excellent, wearability,
High specific strength, good heat conduction, electric conductivity, coefficient of thermal expansion be small, etc. a series of excellent properties, there is potential application prospect
With wide market, the metal-base composites of particle enhancing, the fiber-reinforced metal matrix composite that compares has at low cost
Honest and clean, anisotropy is small, is readily synthesized.
It is found by retrieval, a kind of SiC reinforcement high Al-Zn base of the disclosure of the invention of patent No. CN201710831374.1
The preparation method of composite material, mainly comprises the following steps：Silicon carbide powder is pre-processed first, then to silicon carbide electroless copper shape
At SiCp- Cu powders, then the first product of smelting and pouring formation SiC reinforcement high Al-Zn base composite material, again carries out first product
Remelting degasification, refining removal of impurities moulding by casting.Finally obtained SiC reinforcement high Al-Zn base composite material, reinforced phase SiCp-Cu
It is uniformly distributed in the base, reduces oxide inclusion content, significantly improve stretching and wear-resisting property.
A kind of preparation of enhancing aluminum-base composite material by silicon carbide particles of the disclosure of the invention of the patent No. 201510965319.2
Method is related to aluminum matrix composite field.The operating method of the present invention is by carborundum powder and particle, potassium fluotitanate or fluorine zirconium
Above two or several powders are uniformly mixed by sour potassium or potassium fluoborate or potassium fluosilicate or potassium floutaramite.By aluminium in stove
Fusing skims to melt after fully stirring melt heat preservation in mixing powder raw material addition stove after being warming up to 660 DEG C -1500 DEG C
Afterwards, the melt fully after agitation melt is cast into various products.
It is multiple to be related to aluminium base for a kind of preparation method of aluminum matrix composite of the disclosure of the invention of the patent No. 201610233708.0
Condensation material field.The operating method of the present invention be by diamond or diamond and silicon carbide mixed-powder particle, potassium fluotitanate, or
Potassium fluorozirconate or potassium fluoborate or potassium fluosilicate or potassium floutaramite, above two or several powders are uniformly mixed.By stove
Middle aluminium fusing, after fully stirring melt heat preservation in mixing powder raw material addition stove after being warming up to 660 DEG C -1500 DEG C, to melt
After skimming, fully stirs the melt after melt and be cast into various products.
However, when preparation enhances composite material containing SiC particulate and diamond particles, due to SiC particulate and diamond
Wetability between particle and alumin(i)um zinc alloy is very poor, and the technological requirement of preparation is higher, mainly has powder metallurgic method, injection heavy at present
Area method, stirring casting method and squeeze casting method.
Although prior art preparation method has successfully manufactured composite material, it is difficult to industrialized production, to existing
There is the main task for being developed into next step research work of technique further improved with new process, therefore urgent in production
Need invention is a kind of improving SiC particulate and diamond particles aluminium zinc and Al wetability effective ways, the present invention to a certain extent
Chemical reaction is carried out with villiaumite method salt and silicon-carbide particle and prepares aluminum matrix composite, promotes SiC particulate and diamond particles
Infiltration, improve wellability difference problem of the Al melts to SiC particulate and diamond particles, can effectively improve its high-temperature mechanics and
Low energy consumption for wear-resisting property, and simple for process to be conveniently operated at low cost, existing particle enhancing pure aluminium-based composite material mechanical property compares
Difference, particle, which is added, to particle reinforced zinc-based composite material enhances high Al-Zn base composite material, can effectively improve its high-temperature mechanics
And wear-resisting property, it is a kind of wear-resistant material being potential very much, it can be with industrialized production.
Invention content
Therefore, in order to solve above-mentioned deficiency, the present invention provides a kind of system of particle enhancing high Al-Zn base composite material herein
Preparation Method, the present invention promote the infiltration of SiC, diamond particles in prior art synthetic product, improve Al melts to SiC,
The technical problems such as the wellabilities of diamond particles is very poor.Zinc-base compounded material is since its fusing point is relatively low, as a kind of antifriction material,
High temperature is locally understood when work, makes its wear resistance decrease；It, which deforms the atomic arrangement mode of close-packed hexagonal, causes plasticity poor, existing
There is particle enhancing pure aluminium-based composite material mechanical property poor, on the basis of particle reinforced zinc-based composite material alloy, leads to
Optimized alloy ingredient is crossed, refining alloy tissue significantly improves alloy mechanical property and wearability, and it is excellent to provide a kind of comprehensive performance
It is good, its high-temperature mechanics and wear-resisting property can be effectively improved, is a kind of wear-resistant material being potential very much.
The invention is realized in this way a kind of preparation method of particle enhancing high Al-Zn base composite material is constructed, including such as
Lower step；
(1) prepare material by mass percentage first：The carborundum powder and particle or Buddha's warrior attendant of quality accounting 5%-40%
Mountain flour and silicon carbide mixed powder and particle, the potassium fluotitanate of quality accounting 10%-90%,
Zn5%-60%, Cu1.2-2.5%, Mg0.05-3%,
Mn0.3%-0.6%, Ni0.5%-3%, Cr0.3%-0.5%, Zr0.3%-0.5%, Al surplus；
(2) by fine aluminium or aluminum alloy melting in melting furnace, by carborundum powder or gold after being warming up to 800 DEG C~1200 DEG C
Emery and potassium fluotitanate mixing powder raw material are added in stove fully stir melt heat preservation 5-30min after, melt is taken off
Then Zn, Cu, Mg, Mn, Ni, Cr, Zr is added in slag, with nitrogen, argon gas carries out processing 5-15 minutes, is cast into various products.
As an improvement of the above technical solution, a kind of particle enhances the preparation method of high aluminum matrix composite,
It is characterized in that：50 μm -10 μm of the granularity and bortz powder granularity of carborundum powder.
As an improvement of the above technical solution, a kind of particle enhances the preparation method of high aluminum matrix composite,
It is characterized in that：By fine aluminium or aluminum alloy melting in melting furnace, by carborundum powder or bortz powder and fluorine after being warming up to 850 DEG C
Potassium titanate mixing powder raw material is added in stove and fully stirs.
As an improvement of the above technical solution, a kind of particle enhances the preparation method of high aluminum matrix composite,
It is characterized in that：Carborundum powder or bortz powder, which are added with potassium fluotitanate mixing powder raw material in stove, fully stirs melt heat preservation
After 10min, skim to melt.
A kind of preparation method of particle enhancing high Al-Zn base composite material, includes the following steps；
(1) prepare material by mass percentage first：The carborundum powder and particle or Buddha's warrior attendant of quality accounting 5%-40%
Mountain flour and silicon carbide mixed powder and particle, the potassium fluotitanate of quality accounting 10%-90%, Al20%-60%, Cu1.0-
More than 2.5%, Mg0.05-3%, Mn0.3%-0.6%, Ni0.5%-3%, Cr0.3%-0.5%, Zr0.3%-0.5%, Zn
Amount；
(2) by fine aluminium or aluminum alloy melting in melting furnace, by carborundum powder or gold after being warming up to 800 DEG C~1200 DEG C
Emery and potassium fluotitanate mixing powder raw material are added in stove fully stir melt heat preservation 5-30min after, melt is taken off
Then Zn, Cu, Mg, Mn, Ni, Cr, Zr is added in slag, with nitrogen, argon gas carries out processing 5-15 minutes, is cast into various products.
As an improvement of the above technical solution, a kind of particle enhances the preparation method of high aluminum matrix composite,
It is characterized in that：50 μm -10 μm of the granularity and bortz powder granularity of carborundum powder.
As an improvement of the above technical solution, a kind of particle enhances the preparation method of high aluminum matrix composite,
It is characterized in that：By fine aluminium or aluminum alloy melting in melting furnace, by carborundum powder or bortz powder and fluorine after being warming up to 850 DEG C
Potassium titanate mixing powder raw material is added in stove and fully stirs.
As an improvement of the above technical solution, a kind of particle enhances the preparation method of high aluminum matrix composite,
It is characterized in that：Carborundum powder or bortz powder, which are added with potassium fluotitanate mixing powder raw material in stove, fully stirs melt heat preservation
After 10min, skim to melt.
The invention has the advantages that：The present invention provides a kind of system of particle enhancing high Al-Zn base composite material by improving
Preparation Method, operating method of the invention are by silicon carbide and diamond mixed-powder particle, potassium fluotitanate, by above two powder
It is uniformly mixed.Aluminium in stove is melted, mixing powder raw material is added in stove after being warming up to 800 DEG C -1200 DEG C and fully stirs melt
After heat preservation, after skimming to melt, Zn5%-60%, Cu1.2-2.5%, Mg0.05-3%, Mn0.3%-0.6% is added,
Ni0.5%-3%, Cr0.3%-0.5%, Zr0.3%-0.5% fully stir the melt after melt and are cast into various products.This
Invention promotes the infiltration of SiC, diamond particles in prior art synthetic product, improves Al melts to SiC, diamond
The technical problems such as wellability is very poor of grain.Zinc-base compounded material is since its fusing point is relatively low, and as a kind of antifriction material, work the current political situation
Portion's meeting high temperature, makes its wear resistance decrease；It, which deforms the atomic arrangement mode of close-packed hexagonal, causes plasticity poor, and existing particle increases
Strong pure aluminium-based composite material mechanical property is poor, on the basis of particle reinforced zinc-based composite material alloy, is closed by optimizing
Golden ingredient, refining alloy tissue, significantly improves alloy mechanical property and wearability, provides a kind of high comprehensive performance, can be effective
Ground improves its high-temperature mechanics and wear-resisting property, is a kind of wear-resistant material being potential very much.
Specific implementation mode
Below in conjunction with embodiment, the present invention is described in detail, and technical solution in the embodiment of the present invention carries out clear
Chu is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of preparation method of particle enhancing high Al-Zn base composite material by improving herein, of the invention
Operating method is that above two powder is uniformly mixed to silicon carbide and diamond mixed-powder particle, potassium fluotitanate.It will be in stove
Aluminium melts, and after fully stirring melt heat preservation in mixing powder raw material addition stove after being warming up to 800 DEG C -1200 DEG C, takes off melt
After slag, Zn5%-60%, Cu1.2-2.5%, Mg0.05-3%, Mn0.3%-0.6%, Ni0.5%-3% is added,
Cr0.3%-0.5%, Zr0.3%-0.5% fully stir the melt after melt and are cast into various products.
The preparation method for enhancing a kind of particle of the present invention high aluminum matrix composite below by 3 embodiments is further
Explanation：
Embodiment 1：
(1) prepare material by mass percentage first：10% carborundum powder and particle of both accountings gross mass, accounting two
8% potassium fluotitanate of person's gross mass, above two powder is uniformly mixed.
(2) it is former that two kinds of mixing powderies of aluminum melt weight ratio will be accounted for by fine aluminium in stove or aluminum alloy melting, after being warming up to 800 DEG C
After fully stirring melt heat preservation 10min in material addition stove, after skimming to melt, Zn15%, Cu1.2% is then added,
Mg0.05, with nitrogen, argon gas carries out processing 5-15 minutes, is cast into various products.
Table 1 is ZA alloy compositions w (%)
300 DEG C of tensile strength of this material sample reach 208.19MPa, and elongation 3.6%, alloy rigidity is maximum, is
80.5HB, friction condition load are 1850N, power of motor 5.7Kw, fraction time 40min, and working environment is room temperature, nothing
Lubrication.Friction coefficient 0.33, wear extent 0.0031g.More original fine aluminium grained silicon carbide composite material, this sample alloy
Zn15 tensile strength improves 73.49%, and wear extent reduces 16.2%.
Embodiment 2：
(1) prepare material by mass percentage first：20% carborundum powder and particle of both accountings gross mass, accounting two
40% potassium fluotitanate of person's gross mass, above two powder is uniformly mixed.
(2) two kinds of mixing powderies of aluminum melt weight ratio will be accounted for by fine aluminium in stove or aluminum alloy melting, after being warming up to 1200 DEG C
After fully stirring melt heat preservation 10min in raw material addition stove, after skimming to melt, Zn50%, Cu1.8% is then added,
Mg0.06%, Mn0.3, Ni0.5, Cr0.3, Zr0.2 nitrogen, argon gas carry out processing 5-15 minutes, are cast into various products.
Table 2 is ZA alloy compositions w (%)
350 DEG C of tensile strength of this material sample reach 320.5MPa, and elongation 2%, alloy rigidity is maximum, are 95.6HB, rub
Rub piece part load is 1850N, and power of motor 5.7Kw, fraction time 40min, working environment is room temperature, unlubricated.Friction
Coefficient 0.26, wear extent 0.0018g.More original fine aluminium grained silicon carbide composite material, this sample alloy Zn50 tensions are strong
Degree improves 166.6%, and wear extent reduces 51.3%.
Embodiment 3：
(1) prepare material by mass percentage first：8% carborundum powder and particle of both accountings gross mass, diamond
20% potassium fluotitanate of both 8% accountings of powder gross mass, above two powder is uniformly mixed.
(2) it is former that two kinds of mixing powderies of aluminum melt weight ratio will be accounted for by fine aluminium in stove or aluminum alloy melting, after being warming up to 850 DEG C
After fully stirring melt heat preservation 10min in material addition stove, after skimming to melt, Al 30%, Cu1.2% is then added,
Mg0.05, with nitrogen, argon gas carries out processing 5-15 minutes, is cast into various products.
Table 3 is ZA alloy compositions w (%)
300 DEG C of tensile strength of this material sample reach 286.0MPa, and elongation 3.6%, alloy rigidity is maximum, is
120.0HB, friction condition load are 1850N, power of motor 5.7Kw, fraction time 40min, and working environment is room temperature, nothing
Lubrication.Friction coefficient 0.16, wear extent 0.0008g.More original fine aluminium grained silicon carbide composite material, this sample alloy
Al30 tensile strength improves 133%, and wear extent reduces 78.3%.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (8)
1. a kind of preparation method of particle enhancing high Al-Zn base composite material, which is characterized in that include the following steps；
(1) prepare material by mass percentage first：The carborundum powder and particle or bortz powder of quality accounting 5%-40%
With silicon carbide mixed powder and particle, the potassium fluotitanate of quality accounting 10%-90%,
Zn5%-60%, Cu1.2-2.5%, Mg0.05-3%,
Mn0.3%-0.6%, Ni0.5%-3%, Cr0.3%-0.5%, Zr0.3%-0.5%, Al surplus；
(2) by fine aluminium or aluminum alloy melting in melting furnace, by carborundum powder or diamond after being warming up to 800 DEG C~1200 DEG C
Powder and potassium fluotitanate mixing powder raw material are added in stove fully stir melt heat preservation 5-30min after, skim to melt, then
Zn, Cu, Mg, Mn, Ni, Cr, Zr is added, with nitrogen, argon gas carries out processing 5-15 minutes, is cast into various products.
2. a kind of particle according to claim 1 enhances the preparation method of high aluminum matrix composite, it is characterised in that：Carbonization
50 μm -10 μm of the granularity and bortz powder granularity of silica flour.
3. a kind of particle according to claim 1 enhances the preparation method of high aluminum matrix composite, it is characterised in that：Molten
Change fine aluminium or aluminum alloy melting in stove, by carborundum powder or bortz powder and potassium fluotitanate mixed powder after being warming up to 850 DEG C
Shape raw material is added in stove and fully stirs.
4. a kind of particle according to claim 1 enhances the preparation method of high aluminum matrix composite, it is characterised in that：Carbonization
Silica flour or bortz powder are added with potassium fluotitanate mixing powder raw material in stove fully stir melt heat preservation 10min after, to melt
It skims.
5. a kind of preparation method of particle enhancing high Al-Zn base composite material, which is characterized in that include the following steps；
(1) prepare material by mass percentage first：The carborundum powder and particle or bortz powder of quality accounting 5%-40%
With silicon carbide mixed powder and particle, the potassium fluotitanate of quality accounting 10%-90%, Al20%-60%, Cu1.0-2.5%,
Mg0.05-3%, Mn0.3%-0.6%, Ni0.5%-3%, Cr0.3%-0.5%, Zr0.3%-0.5%, Zn surplus；
(2) by fine aluminium or aluminum alloy melting in melting furnace, by carborundum powder or diamond after being warming up to 800 DEG C~1200 DEG C
Powder and potassium fluotitanate mixing powder raw material are added in stove fully stir melt heat preservation 5-30min after, skim to melt, then
Zn, Cu, Mg, Mn, Ni, Cr, Zr is added, with nitrogen, argon gas carries out processing 5-15 minutes, is cast into various products.
6. a kind of particle according to claim 5 enhances the preparation method of high aluminum matrix composite, it is characterised in that：Carbonization
50 μm -10 μm of the granularity and bortz powder granularity of silica flour.
7. a kind of particle according to claim 5 enhances the preparation method of high aluminum matrix composite, it is characterised in that：Molten
Change fine aluminium or aluminum alloy melting in stove, by carborundum powder or bortz powder and potassium fluotitanate mixed powder after being warming up to 850 DEG C
Shape raw material is added in stove and fully stirs.
8. a kind of particle according to claim 5 enhances the preparation method of high aluminum matrix composite, it is characterised in that：Carbonization
Silica flour or bortz powder are added with potassium fluotitanate mixing powder raw material in stove fully stir melt heat preservation 10min after, to melt
It skims.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109778014A (en) * | 2019-03-18 | 2019-05-21 | 武汉科技大学 | A kind of casting anti-friction wear-resistant high Al-Zn base composite material and preparation method |
| CN109881046A (en) * | 2019-03-18 | 2019-06-14 | 武汉科技大学 | A kind of nano silicon carbide granulate enhancing Zn Al Alloy Matrix Composites and preparation method thereof |
| CN111250708A (en) * | 2020-03-23 | 2020-06-09 | 广西科技大学 | Wear-resistant bushing for excavator and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109778014A (en) * | 2019-03-18 | 2019-05-21 | 武汉科技大学 | A kind of casting anti-friction wear-resistant high Al-Zn base composite material and preparation method |
| CN109881046A (en) * | 2019-03-18 | 2019-06-14 | 武汉科技大学 | A kind of nano silicon carbide granulate enhancing Zn Al Alloy Matrix Composites and preparation method thereof |
| CN109778014B (en) * | 2019-03-18 | 2020-09-08 | 武汉科技大学 | Cast antifriction wear-resistant high-aluminum zinc-based composite material and preparation method thereof |
| CN111250708A (en) * | 2020-03-23 | 2020-06-09 | 广西科技大学 | Wear-resistant bushing for excavator and preparation method thereof |
| CN111250708B (en) * | 2020-03-23 | 2021-12-24 | 广西科技大学 | Wear-resistant bushing for excavator and preparation method thereof |
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Application publication date: 20180911 |