CN108149084A - High performance absorber - Google Patents
High performance absorber Download PDFInfo
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- CN108149084A CN108149084A CN201711436986.7A CN201711436986A CN108149084A CN 108149084 A CN108149084 A CN 108149084A CN 201711436986 A CN201711436986 A CN 201711436986A CN 108149084 A CN108149084 A CN 108149084A
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- alloy
- high performance
- damper
- powder
- aluminium alloy
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 43
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 9
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 8
- 239000004615 ingredient Substances 0.000 claims abstract description 7
- 230000035939 shock Effects 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 44
- 239000000956 alloy Substances 0.000 claims description 44
- 239000000047 product Substances 0.000 claims description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 239000011265 semifinished product Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 239000003350 kerosene Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 5
- 229910001339 C alloy Inorganic materials 0.000 claims description 4
- 238000010892 electric spark Methods 0.000 claims description 2
- 229910052754 neon Inorganic materials 0.000 claims description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- 229910052786 argon Inorganic materials 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 9
- 238000004663 powder metallurgy Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- 239000004411 aluminium Substances 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 4
- 239000002344 surface layer Substances 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005864 Sulphur Substances 0.000 abstract description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 229910052726 zirconium Inorganic materials 0.000 abstract description 3
- 229910000905 alloy phase Inorganic materials 0.000 abstract description 2
- 230000008859 change Effects 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 15
- 239000011651 chromium Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000001307 helium Substances 0.000 description 6
- 229910052734 helium Inorganic materials 0.000 description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000004381 surface treatment Methods 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1051—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by electric discharge
-
- 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
- B22F2009/0804—Dispersion in or on liquid, other than with sieves
- B22F2009/0812—Pulverisation with a moving liquid coolant stream, by centrifugally rotating stream
-
- 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
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to high performance absorbers, and in particular to high-performance powder metallurgy damper and its preparation process belong to powder metallurgical technology.Damper includes the protective layer of shock absorber body and body surface, and shock absorber body is made of the aluminium alloy of following ingredient and its mass percent：Zr：0.06 0.12%, C：0.04 0.08%, Si：0.2 0.3%, Cd：0.08 0.14%, Cr：0.05 0.09%, RE：0.03 0.05%, surplus is Al and impurity.Zirconium is added in raw material and with rare-earth elements, is strong deoxidation and denitrogenation ingredient, be except deoxidation, nitrogen, sulphur, phosphorus cleanser, the low-temperature flexibility of improvement aluminium in aluminium alloy.Protective layer can not only protect ontology not corroded by the external world, and can change the alloy phase composition of this surface layer, enhance its comprehensive performance, prolong the service life.And the gas stream of high speed Gao Leng is injected in aluminium alloy, and aluminium alloy is broken into the liquid stream of fines, utilizes the difference of temperature so that particle is formed after liquid stream chilling, powder metallurgical technique can be carried out without carrying out grinding processing through machinery.
Description
Technical field
The present invention relates to high performance absorbers, and in particular to high-performance powder metallurgy damper and its preparation process belong to
Powder metallurgical technology.
Background technology
Damper is for inhibiting concussion when rebounding after spring shock-absorbing as a part indispensable in mechanical composition
And the impact from road surface.Automobile is widely used in, to accelerate the attenuation of vehicle frame and body vibrations, is put down with the traveling for improving automobile etc.
It is pliable.The Control for Dependability of machinery is most important to the fast development of the industries such as domestic automobile, aircraft.To improve the reliable of machinery
Property, the stability requirement as the indispensable damper of machinery is higher and higher, and the stability of damper depends on damping
The primary structure of device and the material for forming damper.Usually using aluminium, steel etc., materials are machined forms, of the invention then be to adopt
It is prepared with powder metallurgic method.
Powder metallurgy includes powder processed and product.Powder wherein processed be mainly metallurgical process and it is literal coincide.Powder metallurgy is system
Metal powder is taken or by the use of metal powder (or mixture of metal powder and non-metal powder) as raw material, through overmolding and burning
Knot, the technology of manufacture metal material, composite material and various types product.
POWDER METALLURGY ALUMINIUM ALLOYS refer to powder metallurgy process prepare based on aluminium, add in a certain amount of chromium, manganese etc.
Element and the alloy system for controlling carbon content and forming.POWDER METALLURGY ALUMINIUM ALLOYS has high intensity, high tenacity and certain ductility,
Particularly suitable for making structural material, be therefore widely used in national defense industry and civilian industry, especially automobile, motorcycle,
It is occupied an important position in firearms and household electric appliances.
Traditional damper generally use pressure processing generates plastic deformation, is then cold worked or hot-working.Material
Main machining method have：Rolling, casting, drawing group, extruding etc..Not only process is various, but also in product for traditional diamond-making technique
Performance such as toughness, ductility etc. are also short of.
It is low for conventional aluminum alloy ductility, the shortcomings of poor ductility, publication number 106048379A disclose it is a kind of by
Toughness, elongation percentage that the member such as rare earth, strontium usually improves product are added in aluminium alloy.However, it only promotes the toughness of aluminium alloy, prolong
Reply complex environment can not be enabled aluminum alloy to by stretching the performances such as rate.
Invention content
In view of the above problems, the present invention provides high intensity, high intensity, corrosion resistant high performance absorber.
To achieve these goals, the present invention uses following technical scheme：
High performance absorber, the protective layer including shock absorber body and body surface, shock absorber body by following ingredient and
The aluminium alloy composition of its mass percent：Zr：0.06-0.12%, C：0.04-0.08%, Si：0.2-0.3%, Cd：0.08-
0.14%th, Cr：0.05-0.09%, RE：0.03-0.05%, surplus are Al and impurity.
The present invention uses the shock absorber body of aluminium alloy preparation and coordinates the protective layer of body surface, can not only protect ontology
It is not corroded by the external world, and the alloy phase composition of this surface layer can be changed, enhanced its comprehensive performance, prolong the service life.And it is closed in aluminium
In the preparation process of gold, usually using manganese as deoxidier and desulfurizing agent, although manganese has the spy resourceful, efficiency is various
Point, but manganese can increase the tendency of grain coarsening and temper brittleness sensibility.Zirconium is added in the raw material of aluminium alloy of the present invention simultaneously
Strong deoxidation and denitrogenation ingredient with rare-earth elements, be except deoxidation, nitrogen, sulphur, phosphorus cleanser, change in aluminium alloy
The low-temperature flexibility of kind aluminium.
Preferably, damper protective layer is mutually made of multicomponent alloy, and multicomponent alloy is mutually handed over by carbon alloy, metallic element
Melt to be formed.The protective layer material that the present invention uses not only by alloy in itself into being grouped as, but also in actual fabrication process,
Other metallic elements can be mixed into so that the ingredient of protective layer forms multi-element mixed structure, significantly enhances the wear-resisting, resistance to of product
Corrosion.
The present invention additionally provides another technical solution while reasonable selection material mixture ratio：
The preparation process of high performance absorber, includes the following steps：
(1) melting：Raw material is weighed by al alloy component and its mass percent, and mixed smelting is into aluminium alloy；
(2) powder processed：Aluminium alloy is blown on graphite plate using inert gas flow, forms alloy powder；
(3) it is molded：Alloy powder made from step (2) is put into mold, injects carbon-source cpd, electric treatment obtains base
Part；
(4) it is sintered：Blank is sintered to obtain damper semi-finished product；
(5) it is surface-treated：Damper semi-finished product are placed in container, is filled with and mixes gas, damper is then connect into high pressure
Electrode, low-field electrode connect the alloy sheets in container, obtain damper finished product.
How how powder metallurgical technique powder processed and is sintered if focusing on, the present invention mainly researches and develops a kind of novel powder mode processed,
It is injected in aluminium alloy using the gas stream of high speed Gao Leng, aluminium alloy is broken into the liquid streams of fines, due to the difference of temperature,
So that form particle after liquid stream chilling, powder metallurgical technique can be carried out without carrying out grinding processing through machinery.And powder metallurgy
Technique replaces conventional machining process, not only reduces process, and can product one-pass molding be saved the time, while also make
Product is obtained to be promoted in the performances such as intensity, corrosion resistance.
Preferably, in step (2), inert gas is one or both of helium, neon, and the flow velocity of gas stream is
800-1200m/s.The impurity element that inert gas can not only completely cut off in air, which is mixed into alloy, causes alloy system avalanche, also protects
Shield graphite plate will not be aoxidized due to temperature increases, and set high velocity gas stream, can be crushed aluminium alloy to the maximum extent and be allowed to shape
Into the smaller powder metallurgy of grain size.
Preferably, in step (2), the temperature of inert gas is -15~-30 DEG C.The temperature and aluminium alloy of gas stream
Gap is bigger, and the convergent force that aluminium alloy obtains while cooling is bigger, and the density of alloy powder can just increase, the properties of product of acquisition
More preferably.
Preferably, in step (3), carbon-source cpd is one or both of gasoline, kerosene.What the present invention used
Carbon-source cpd is material simple and easy to get, under the surface property for ensureing alloy, saves cost.
Preferably, in step (3), electric treatment is electric spark processing：Electric discharge probe is taken on powder, is passed through 90-
The alternating current of 120V.Since the electric conductivity of the carbon-source cpd of use is weak, it is punctured, and is formed using AC energy
Small spark carries out so that the Carbon deposition in carbon-source cpd is in alloy since electric treatment completely cuts off really in the environment of air
Surface is combined with the alloy on surface layer, so as to form the institutional framework of carbon alloy.
Preferably, in step (5), mix gas for two or three in methane, ammonia, nitrogen.Mix gas
In carbon, nitrogen and alloy surface can be gathered in because high tension voltage generates ionic condition, so as to the element with alloy surface
Compound is formed, promotes anti-corrosion, the wear-resisting property of alloy.
Preferably, in step (5), the voltage of high-field electrode is 800-1200V, and the voltage of low-field electrode is -20-
200V.Expand the pressure difference of high-field electrode and low-field electrode, ion can be generated, and can promote to close by ionized gas in a relatively short period of time
Metallic element in golden plate generates ion, and then react to form protective layer with alloy.
Preferably, in step (5), alloy sheets are to be made of one or more in Ti, Co, Ni.The gold of alloy sheets
It is all to have stronger anti-corrosion, wear-resisting element to belong to element, has great help for promoting alloy property.
Compared with prior art, the invention has the advantages that：
(1) zirconium and rare earth are added in raw material, is strong deoxidation and denitrogenation ingredient, be except deoxidation, nitrogen, sulphur, phosphorus it is net
Agent improves the low-temperature flexibility of aluminium in aluminium alloy, and effect is much better than the vanadium in traditional aluminium alloy.
(2) protective layer on surface can not only protect ontology not corroded by the external world, and can carry out alloy again to this surface layer
The transformation of phase enhances its comprehensive performance, prolongs the service life.
(3) it is injected in aluminium alloy using the gas stream of high speed Gao Leng, aluminium alloy is broken into the liquid stream of fines, due to
The difference of temperature so that form nanoparticle after liquid stream chilling.
(4) carbon source is punctured using alternating current so that carbon is combined to form carbon alloy with alloying element, for below
Protective layer processing carry out basis.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
Melting：Raw material is weighed by al alloy component and its mass percent, including Zr：0.09%th, C：0.06%th, Si：
0.25%th, Cd：0.11%th, Cr：0.07%th, RE：0.04%th, surplus is Al and impurity, and mixed smelting is into aluminium alloy.
Powder processed：Aluminium alloy is blown on graphite plate with the rate of 1000m/s using the helium atmosphere stream that temperature is -23 DEG C,
Form alloy powder.
Molding：Alloy powder is put into mold, injection carbon-source cpd benzene, kerosene, electric discharge probe is taken on powder,
The alternating current for being passed through 105V obtains blank.
Sintering：Blank is sintered to obtain damper this finished product.
Surface treatment：Damper semi-finished product are placed in container, is filled with and mixes gases methane, ammonia, nitrogen, then will be subtracted
Shake device connects the high-field electrode of 1000V, and the low-field electrode of 90V connects the alloy sheets being made of Ti, Co, Ni in container, obtains damper
Finished product.
Embodiment 2
Melting：Raw material is weighed by al alloy component and its mass percent, including Zr：0.06%th, C：0.04%th, Si：
0.2%th, Cd：0.08%th, Cr：0.05%th, RE：0.03%th, surplus is Al and impurity, and mixed smelting is into aluminium alloy.
Powder processed：Aluminium alloy is blown on graphite plate with the rate of 800m/s using the helium atmosphere stream that temperature is -15 DEG C, shape
Into alloy powder.
Molding：Alloy powder is put into mold, injection carbon-source cpd benzene, kerosene, electric discharge probe is taken on powder,
The alternating current for being passed through 90V obtains blank.
Sintering：Blank is sintered to obtain damper this finished product.
Surface treatment：Damper semi-finished product are placed in container, is filled with and mixes gases methane, ammonia, nitrogen, then will be subtracted
Shake device connects the high-field electrode of 1000V, and the low-field electrode of 90V connects the alloy sheets being made of Ti, Co, Ni in container, obtains damper
Finished product.
Embodiment 3
Melting：Raw material is weighed by al alloy component and its mass percent, including Zr：0.12%th, C：0.08%th, Si：
0.3%th, Cd：0.14%th, Cr：0.09%th, RE：0.05%th, surplus is Al and impurity, and mixed smelting is into aluminium alloy.
Powder processed：Aluminium alloy is blown on graphite plate with the rate of 1200m/s using the helium atmosphere stream that temperature is -30 DEG C,
Form alloy powder.
Molding：Alloy powder is put into mold, injection carbon-source cpd benzene, kerosene, electric discharge probe is taken on powder,
The alternating current for being passed through 120V obtains blank.
Sintering：Blank is sintered to obtain damper this finished product.
Surface treatment：Damper semi-finished product are placed in container, is filled with and mixes gases methane, ammonia, nitrogen, then will be subtracted
Shake device connects the high-field electrode of 1000V, and the low-field electrode of 90V connects the alloy sheets being made of Ti, Co, Ni in container, obtains damper
Finished product.
Embodiment 4
Melting：Raw material is weighed by al alloy component and its mass percent, including Zr：0.09%th, C：0.06%th, Si：
0.25%th, Cd：0.11%th, Cr：0.07%th, RE：0.04%th, surplus is Al and impurity, and mixed smelting is into aluminium alloy.
Powder processed：Aluminium alloy is blown on graphite plate with the rate of 1250m/s using the helium atmosphere stream that temperature is -30 DEG C,
Form alloy powder.
Molding：Alloy powder is put into mold, injection carbon-source cpd benzene, kerosene, electric discharge probe is taken on powder,
The alternating current for being passed through 90V obtains blank.
Sintering：Blank is sintered to obtain damper this finished product.
Surface treatment：Damper semi-finished product are placed in container, is filled with and mixes gases methane, ammonia, nitrogen, then will be subtracted
Shake device connects the high-field electrode of 800V, and the low-field electrode of -20V connects the alloy sheets being made of Ti, Co, Ni in container, obtains damper
Finished product.
Embodiment 5
Melting：Raw material is weighed by al alloy component and its mass percent, including Zr：0.09%th, C：0.06%th, Si：
0.25%th, Cd：0.11%th, Cr：0.07%th, RE：0.04%th, surplus is Al and impurity, and mixed smelting is into aluminium alloy.
Powder processed：Aluminium alloy is blown on graphite plate with the rate of 1250m/s using the helium atmosphere stream that temperature is -30 DEG C,
Form alloy powder.
Molding：Alloy powder is put into mold, injection carbon-source cpd benzene, kerosene, electric discharge probe is taken on powder,
The alternating current for being passed through 90V obtains blank.
Sintering：Blank is sintered to obtain damper this finished product.
Surface treatment：Damper semi-finished product are placed in container, is filled with and mixes gases methane, ammonia, nitrogen, then will be subtracted
Shake device connects the high-field electrode of 1200V, and the low-field electrode of 200V connects the alloy sheets being made of Ti, Co, Ni in container, obtains damper
Finished product.
Comparative example 1
With differing only in for embodiment 1, the protective layer of comparative example 1 is only made of zinc layers.
Comparative example 2
With differing only in for embodiment 1, after comparative example 2 pulverizes each component materials sintering prepare product.
Pressing the dampers of more than material mixture ratio and technique productions, to test its intensity, hardness, toughness as shown in table 1：
Table 1：The performance of product in embodiment 1-5 and comparative example 1-2
As can be seen from the data in the table, the multicomponent alloy of product surface mutually can not only enhance alloy property, it also can be greatly
Extend the service life of product.
It is skilled to this field although having been made a detailed description to the present invention and being cited some specific embodiments
For technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.
Claims (10)
1. high performance absorber, which is characterized in that the damper includes the protective layer of shock absorber body and body surface, institute
The shock absorber body stated is made of the aluminium alloy of following ingredient and its mass percent：Zr：0.06-0.12%, C：0.04-
0.08%th, Si：0.2-0.3%, Cd：0.08-0.14%, Cr：0.05-0.09%, RE：0.03-0.05%, surplus are Al and miscellaneous
Matter.
2. high performance absorber according to claim 1, which is characterized in that the protective layer is mutually made of multicomponent alloy,
The multicomponent alloy is mutually blended by carbon alloy, metallic element to be formed.
3. the preparation method of high performance absorber, which is characterized in that the method includes the following steps：
(1) melting：Raw material is weighed by claim 1 al alloy component and its mass percent, and mixed smelting is into aluminium alloy；
(2) powder processed：Aluminium alloy is blown on graphite plate using inert gas flow, forms alloy powder；
(3) it is molded：Alloy powder made from step (2) is put into mold, injects carbon-source cpd, electric treatment obtains blank；
(4) it is sintered：Blank is sintered to obtain damper semi-finished product；
(5) it is surface-treated：Damper semi-finished product are placed in container, is filled with and mixes gas, damper is then connect into high-field electrode,
Low-field electrode connects the alloy sheets in container, obtains damper finished product.
4. the preparation method of high performance absorber according to claim 3, which is characterized in that step (2) described indifferent gas
Body is one or both of argon gas, neon, and the flow velocity of gas stream is 800-1200m/s.
5. the preparation method of high performance absorber according to claim 3, which is characterized in that step (2) described indifferent gas
The temperature of body is -15~-30 DEG C.
6. the preparation method of high performance absorber according to claim 3, which is characterized in that step (3) described carbon source
Conjunction object is one or both of gasoline, kerosene.
7. the preparation method of high performance absorber according to claim 3, which is characterized in that step (3) described electric treatment
For electric spark processing：Electric discharge probe is taken in the alternating current on powder, being passed through 90-120V.
8. the preparation method of high performance absorber according to claim 3, which is characterized in that step (5) is described to mix gas
Body is methane, two or three in ammonia, nitrogen.
9. the preparation method of high performance absorber according to claim 3, which is characterized in that step (5) described high-voltage electricity
The voltage of pole is 800-1200V, and the voltage of low-field electrode is -20-200V.
10. the preparation method of high performance absorber according to claim 3, which is characterized in that step (5) described alloy sheets
To be made of one or more in Ti, Co, Ni.
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Application publication date: 20180612 |