CN101273149B - Aluminium-based powder composite mixture and method for the production thereof - Google Patents
Aluminium-based powder composite mixture and method for the production thereof Download PDFInfo
- Publication number
- CN101273149B CN101273149B CN2006800355248A CN200680035524A CN101273149B CN 101273149 B CN101273149 B CN 101273149B CN 2006800355248 A CN2006800355248 A CN 2006800355248A CN 200680035524 A CN200680035524 A CN 200680035524A CN 101273149 B CN101273149 B CN 101273149B
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- Prior art keywords
- aluminium
- silicon
- powder
- nickel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
-
- 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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0408—Light metal alloys
- C22C1/0416—Aluminium-based alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention relates to powder metallurgy and can e used in the form of a construction material for accurate engineering products, including design of control devices for aircraft flight director systems exhibiting high operating characteristics. The inventive powder composite mixture comprises components at the following component ratio: 41-43 mass % silicon, 4,1-5.2 mass % nickel, 0.05-0.1 mass % phosphorus and 0.01-0.05 mass % aluminium nitride, the rest being aluminium. The inventive method for producing said powder composite mixture consists in preparing a melting containing aluminium, silicon and nickel, in pulverising, adding a powder silicon, wherein during the melt production, phosphorus is added and the melt pulverisation is carried out by means of nitrogen at a temperature and pressure which enable the aluminium nitride to be formed.; Said invention makes it possible to obtain a material having a homogeneous fine structure and exhibiting a processing plasticity which provides a satisfactory deformation treatment of the material, whose linear expansion factor, vacuum density and dimensional stability are at a beryllium level, thereby substantially promoting the operational reliability of products for a long service life. The inventive material differs from beryllium by the ecological purity thereof.
Description
Technical field
This invention belongs to powder metallurgic method, can use in various national economy field (instrument manufacturing, aerospace, rocket, shipbuilding, automobile, weaving etc.), these fields require product that following character is rolled into one: the linear coefficient of expansion is low, stability is high, proportion is little, processing characteristics is satisfied and ecologically clean.
State of the art before this
As everyone knows, beryllium is one of primary structure material of making by flight instrumentation Controlling System instruction instrument now, it meets the exclusive requirement of instrument part: (E.A. Ni Kenjin, C.A. Lev Shestov, B.A. Ma Tewei Prokofiev, " gyrosystems such as little, the linear coefficient of expansion of proportion is low, dimensional stability is high, vacuum leakproofness is good.The gyroscopic instrument element ", Higher Education Publishing House,, 432 pages in 1988).
The main drawback of this material be process very difficulty, price is high, poisonous.
Add the known already matrix material of the aluminum base alloy of infusible compound of 25% silicon, 5% nickel and 15% silicon nitride (Russian Federation's patent No.: 2016120, international Patent classificating number C22C21/14,91 on May 17,32/00).
The shortcoming of this material is the reliability and stability that can not guarantee desired service performance when life-time service.
It is known to add the particulate composite that the aluminium alloy of silicon, nickel and infusibility component (being the powdered crystalline silicon) forms, and the physical and mechanical properties of this alloy is near beryllium.(Russian Federation's patent: 2149201,21/14,2000 on May 20,32/00 of international Patent classificating number C22C).
The weak point of this material is because the inhomogeneous technology plasticity-that causes of structure is low, stable low, and maneuverability is not good, and pore is arranged, and proportion and linear expansivity are higher, thereby has reduced the reliability that product uses.
Make particulate composite (Russian Federation's patent No.: 2175682 that the aluminum base alloy of infusibility component is formed by adding silicon, beryllium, aluminum oxide and crystalline silicon, international Patent classificating number C22C 21/02, November 101/04 calendar year 2001) known, be similar (prototype) this invention.
The shortcoming of this material is that structure is inhomogeneous, and technology plasticity-reduces, and adopts the plain beryllium of poisonous element to make the alloy component.
The method of producing matrix material comprises the preparation of the molten materials that contains aluminium, copper, magnesium, the interpolation of carborundum powder (B.C. Luo Manluofu, the special angry general gold of K.M. " the half-finished production of powdered compound punching press and its performance study ".Light alloy technology intersection, the Soviet Union light alloy institute of reviving entirely, 1993, No.12,49-53 page or leaf), this method is known.
The shortcoming of this method has been to improve density, the linear coefficient of expansion is higher and the unstable of scantling.
Comprise that preparation, the atomizing of the molten materials that contains aluminium, silicon, nickel, the matrix material preparation method of interpolation silica flour (Russian Federation's patent No.: No.2149201, international Patent classificating number: 21/14,2000 on May 20,32/00 of C22 C) are known.
Inhomogeneous when the weak point of this method is life-time service owing to structure, have pore and dimensional stability to cause the use properties instability of material inadequately, it is unreliable to use.
Comprise preparation, the atomizing of the molten materials of aluminium, silicon, nickel, beryllium, aluminum oxide, matrix material preparation method (Russian Federation's patent No.: No.2175682 of interpolation silica flour, international Patent classificating number C22 C 21/02,10 days 1/04 November of calendar year 2001) known, be similar (prototype) this invention.
The weak point of this method is can not guarantee that use properties is stable when the product life-time service.
The summary of the invention summary
Replenish according to the present invention and to contain the silicon of phosphorus and aluminium nitride, the clad aluminum powder mixture of nickel, having been carried above having solved of task, its component ratio is as follows: quality %:
-silicon: 41-43
-nickel: 4.1-5.2
-phosphorus: 0.05-0.1
-aluminium nitride: 0.01-0.05
-aluminium: surplus.
The invention still further relates to the preparation method of compounding mixture, this method comprises the preparation that contains aluminium, silicon, nickel molten materials, the molten materials atomizing is produced powder, mix with silica flour with the powder that will obtain, the phosphorus of wherein in preparation method of the present invention, also annotating, and form the dispersion of carrying out molten materials under the temperature and pressure of aluminium nitride at volume with hope with nitrogen.
The composition of the powdered mixture that proposes and its preparation method can:
-at first, because the absorption of phosphorus atom on the crystalline faceted pebble of growth, and crystalization one crystal group (Si
K) the increase of crystal seed quantity crystal growth is obstructed, realize the brilliant variable mechanism of protocrystal silicon by this method;
-secondly since brilliant change process and nitrogenize mutually (AIN) acting in conjunction of forming make the speed of cooling of dispersed system melts higher, its result makes intravital protocrystal silicon of each particulate matrix solid solution and intermetallic phase NiAl
3, FeAl
3, AlN, AIP the speed of growth reduce, it is more even to distribute.
-Di three, the diffusion process when forming nitrogenize helping intensifying next step mutually and form work in-process by powder on powder particle surface.This can be so that the structure of material becomes α-solid aluminium solution, and this solution has fine dispersion and equally distributed crystalline silicon and intermetallic phase NiAl
3, FeAl
3, AlN, AlP precipitate.Similarly constitutional features shows as the distance between rapid shortening crystalline silicon and the intermetallic phase, therefore, has obviously enlarged the surface in contact of they and aluminum substrate.
Therefore, enlarge the intensity that particle connects, helped improving the physical and mechanical properties of material, comprised Young's modulus.The feature of the material of high elastic coefficient shows as the firm connection of structure, and wherein the effect of pulling force is stronger than repulsion.
Relevant therewith, help making the material less expansion under temperature action that makes as the Young's modulus of linear coefficient of expansion inverse.
Everything all helps to produce dispersive crystalline silicon and intermetallic phase NIAl
3, FeAl
3, AIIN, AlP be evenly distributed on the material in α-solid aluminium solution structure, and improves mechanical property, reduces the specific density and the linear coefficient of expansion, improves dimensional stability, vacuum leakproofness and technology plasticity-.
If component concentration (silicon, nickel, phosphorus, aluminium nitride) is lower than regulation content, then can not in α-solid aluminium solution matrix, form protocrystal silicon and intermetallic phase (NiAl
3, FeAl
3, AlN, AlP type) additional dispersion and uniform distribution, nitride does not also have the possibility of formation mutually.The intergranular strength of joint that this had not only reduced intensity but also can reduce aluminum substrate and intermetallic phase on the whole.Therefore reduce intensity and plastic performance, comprised Young's modulus, improved the linear coefficient of expansion, reduced dimensional stability, and the technology plasticity-of material.If component concentration (silicon, nickel, phosphorus, aluminium nitride) is higher than the content of regulation, then because the metacrystal again of melts causes original silicon crystal size to become big, this is negative impact to structural uniformity, thereby increases the linear coefficient of expansion, stability reduced in size and technology plasticity-.
Inventing concrete scheme describes
The preparation method example of the mixture that constitutes by powder:
Get the cast alumin(i)um that the trade mark is not less than A7, the crystalline silicon of the KpO trade mark; Pure nickel H-1; To be involved in the block red phosphorus of punching press of aluminium foil, put into the smelting furnace of preparation melts.When temperature of fusion reaches 1300 ℃, charge into nitrogen, after keeping 30 minutes, being not less than 10 atmospheric nitrogen with pressure is powder with melt atomization, and powder mixes with pulverous silicon then.Powder composite mixture is filled in the sealed vessel, is 1.10 at the residual vacuum degree
-3÷ 1.10
-4Degasification under the condition of mmhg is punching press on the punch press of 950 power at stress then.Blocky blank stands mechanical treatment and physical and mechanical properties check.
Several prescriptions of powder composite mixture are: suggested formula, limit prescription (its value is below or above the ultimate value of the component of method regulation), and the most similar prescription (prototype) is listed in table 1.
What table 2 was listed is the matrix material blank performance of being made by the powder composite mixture of being studied.
Can reach a conclusion from the physical and mechanical properties analytical data of the listed powder constituent material of table 2: utilize by the powder formation mixture of the present invention's prescription and can obtain the best techniques result, this powder composite mixture can be produced the pulverized structure material that surpasses such material on all key propertys.
Therefore, utilize the powdered mixture component concentration of regulation and provide method, we can produce the material with following character: the dispersiveness of structural all even precisions, high physical and mechanical properties, the little linear coefficient of expansion, the vacuum leakproofness of high-dimensional stability and Geng Gao.
Therefore, the powder composite mixture of proposition can be produced the material that high use properties and highly reliable usability are arranged during the product life-time service, and this material non-toxic, and price is also inexpensive.
Claims (2)
1. the aluminium-based powder composite mixture of siliceous, nickel is characterized in that, it replenishes contains phosphorus and aluminium nitride, and its proportion of composing is quality %:
-silicon: 41-43
-nickel: 4.1-5.2
-phosphorus: 0.05-0.1
-aluminium nitride: 0.01-0.05
-aluminium-surplus.
2. produce the method for the aluminium-based powder composite mixture of claim 1, this method comprises the preparation that contains aluminium, silicon, nickel molten materials, the molten materials atomizing is produced powder, mix with silica flour with the powder that will obtain, wherein when producing molten materials, add phosphorus to it, and under the temperature and pressure that guarantees the formation aluminium nitride, carry out the atomizing of molten materials with nitrogen.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2005126579 | 2005-08-22 | ||
| RU2005126579/02A RU2288292C1 (en) | 2005-08-22 | 2005-08-22 | Aluminum-based powder composite mixture and method of production of such mixture |
| PCT/RU2006/000441 WO2007024158A2 (en) | 2005-08-22 | 2006-08-22 | Aluminium-based powder composite mixture and method for the production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101273149A CN101273149A (en) | 2008-09-24 |
| CN101273149B true CN101273149B (en) | 2010-09-29 |
Family
ID=37664440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800355248A Expired - Fee Related CN101273149B (en) | 2005-08-22 | 2006-08-22 | Aluminium-based powder composite mixture and method for the production thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101273149B (en) |
| RU (1) | RU2288292C1 (en) |
| WO (1) | WO2007024158A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178664A (en) * | 2014-07-22 | 2014-12-03 | 安徽冠宇光电科技有限公司 | Aluminum-based composite heat dissipating material of copper-contained anode mud for LED |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030726A1 (en) * | 1997-01-13 | 1998-07-16 | Advanced Metal Technologies Ltd. | Aluminum alloys and method for their production |
| RU2175682C1 (en) * | 2000-09-07 | 2001-11-10 | Открытое акционерное общество "Всероссийский институт легких сплавов" | Powdered aluminum-based composite material and method of preparation thereof |
| CN1334354A (en) * | 2001-08-09 | 2002-02-06 | 华南理工大学 | Hyper-eutectic Al-Si alloy material for powder metallurgy and its preparing process |
| CN1345983A (en) * | 2000-09-27 | 2002-04-24 | 北京科技大学 | Method for spraying and depositing high silicon aluminium alloy |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11157965A (en) * | 1997-07-25 | 1999-06-15 | Taiheiyo Cement Corp | Metal-ceramic composite material and its production |
-
2005
- 2005-08-22 RU RU2005126579/02A patent/RU2288292C1/en active
-
2006
- 2006-08-22 CN CN2006800355248A patent/CN101273149B/en not_active Expired - Fee Related
- 2006-08-22 WO PCT/RU2006/000441 patent/WO2007024158A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030726A1 (en) * | 1997-01-13 | 1998-07-16 | Advanced Metal Technologies Ltd. | Aluminum alloys and method for their production |
| RU2175682C1 (en) * | 2000-09-07 | 2001-11-10 | Открытое акционерное общество "Всероссийский институт легких сплавов" | Powdered aluminum-based composite material and method of preparation thereof |
| CN1345983A (en) * | 2000-09-27 | 2002-04-24 | 北京科技大学 | Method for spraying and depositing high silicon aluminium alloy |
| CN1334354A (en) * | 2001-08-09 | 2002-02-06 | 华南理工大学 | Hyper-eutectic Al-Si alloy material for powder metallurgy and its preparing process |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2288292C1 (en) | 2006-11-27 |
| CN101273149A (en) | 2008-09-24 |
| WO2007024158A2 (en) | 2007-03-01 |
| WO2007024158A8 (en) | 2008-05-15 |
| WO2007024158A3 (en) | 2007-04-12 |
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Granted publication date: 20100929 Termination date: 20200822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |