CN107904453A - A kind of engine rod piece - Google Patents
A kind of engine rod piece Download PDFInfo
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- CN107904453A CN107904453A CN201711169741.2A CN201711169741A CN107904453A CN 107904453 A CN107904453 A CN 107904453A CN 201711169741 A CN201711169741 A CN 201711169741A CN 107904453 A CN107904453 A CN 107904453A
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- powder
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- rod piece
- engine rod
- aluminium
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- 239000000843 powder Substances 0.000 claims abstract description 111
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 106
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 105
- 239000011159 matrix material Substances 0.000 claims abstract description 75
- 239000004411 aluminium Substances 0.000 claims abstract description 68
- 239000002245 particle Substances 0.000 claims abstract description 48
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 38
- 239000000956 alloy Substances 0.000 claims abstract description 38
- 238000010884 ion-beam technique Methods 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 23
- 229910033181 TiB2 Inorganic materials 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 235000013312 flour Nutrition 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000011777 magnesium Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 235000013339 cereals Nutrition 0.000 claims description 24
- 230000032683 aging Effects 0.000 claims description 18
- 239000011265 semifinished product Substances 0.000 claims description 14
- 238000003672 processing method Methods 0.000 claims description 12
- 239000001307 helium Substances 0.000 claims description 9
- 229910052734 helium Inorganic materials 0.000 claims description 9
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- 238000004663 powder metallurgy Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 5
- 239000006104 solid solution Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 238000010129 solution processing Methods 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 16
- 239000010410 layer Substances 0.000 description 8
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 229910052761 rare earth metal Inorganic materials 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- -1 rare earth hydride Chemical class 0.000 description 2
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 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
-
- B22F1/0003—
-
- 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
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- 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
- B22F3/24—After-treatment of workpieces or articles
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
- C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/087—Coating with metal alloys or metal elements only
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
-
- 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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
-
- 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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention designs a kind of engine rod piece, belongs to technical field of automobile parts.Engine rod piece includes the rich magnesium coating of alloy matrix aluminum and matrix surface, and the alloy matrix aluminum includes the raw material components of following mass fraction：68 parts of silica flour, 0.1 0.3 parts of iron powder, 0.01 0.03 parts of copper powder, 0.02 0.05 parts of zinc powder, 0.008 0.03 parts of manganese powder, TiB20.5 2 parts of particle, CeO20.1 0.3 parts of powder, Y2O50.1 0.3 parts of powder, 85 95 parts of aluminium powder.Inventive engine rod piece uses alloy matrix aluminum and the rich magnesium coating coated in base matrix surface, the metal dust of rational proportion alloy matrix aluminum, match somebody with somebody the heat treatment of hot compacting, surface ion beam bombardment processing richness magnesium coating and lower temperature again, further improve hardness, intensity, wearability and the corrosion resistance of engine rod piece.
Description
Technical field
The present invention relates to a kind of engine rod piece, and in particular to a kind of automobile engine rod piece, belongs to auto parts and components skill
Art field.
Background technology
The major part of rod piece is connected with the crank-pin of bent axle, and major part generally makees dissection type, is known as connecting rod cap by separated part,
Special connecting-rod bolts are connect to be fastened on the major part of rod piece.Major part hole surface has very high finish, so as to tight with connecting rod bearing shell
It is closely connected and.Rod piece major part is also milled with positioning pit, and the big end of rod piece also has hole.Rod piece is as the critical piece extensive use for transmitting power
In the important component on all kinds of power vehicles, being all kinds of diesel engines or gasoline engine.Engine rod piece is held during power is transmitted
By very high periodic shock power, inertia force and bending force.This requires engine rod piece should have very high intensity, wear-resisting
Property and corrosion resistance.
The content of the invention
The purpose of the present invention is for the above-mentioned problems in the prior art, it is proposed that a kind of high rigidity, high abrasion, height
Anti-corrosion engine rod piece.
The purpose of the present invention can be realized by following technical proposal：A kind of engine rod piece, it is characterised in that described
Engine rod piece includes the rich magnesium coating of alloy matrix aluminum and matrix surface, and the alloy matrix aluminum includes following mass fraction
Raw material components：6-8 parts of silica flour, 0.1-0.3 parts of iron powder, 0.01-0.03 parts of copper powder, 0.02-0.05 parts of zinc powder, manganese powder 0.008-
0.03 part, TiB20.5-2 parts of particle, CeO20.1-0.3 parts of powder, Y2O50.1-0.3 parts of powder, 85-95 parts of aluminium powder.
The component of inventive engine rod piece rational proportion aluminum matrix alloy, adds suitable TiB in underlying metal powder2
Particle, CeO2Powder, Y2O5Powder, TiB2The presence of particle can not only play good invigoration effect, can also effectively suppress
Balance phase Al13Fe4Precipitation, and crystal grain thinning, increases substantially the hardness and strength of engine rod piece matrix.In the prior art
Have and rare earth oxide is added in aluminium alloy smelting, but be by TiB in the present invention2Particle, CeO2Powder, Y2O5Powder is with powder
The form at end directly mix with metal powder, then coordinates below compressing, and obtained density is big, hardness is high, anti abrasive starts
The matrix of machine rod piece.And add CeO at the same time in alloy matrix aluminum of the present invention2Powder and Y2O5Powder, it is impossible to play getter action and may be used also
Pin hole rate is greatly lowered, the reason is that this main rare earth such as the formation with rare earth hydride REHr and (RESiAl)
It is related that compound has obvious hydrogen to be enriched with surface and internal layer, while reduction of the rare earth fining crystal grain to pin hole rate also has certain tribute
Offer.CeO2Powder and Y2O5The addition of powder can refine as-cast grain, arborescent structure can also substantially be refined, to as-cast structure
Metamorphism and invigoration effect are played, wherein invigoration effect is mainly shown as limited solid solution reinforcing, refined crystalline strengthening and rare earth compound
Second-phase strength.CeO2Powder and Y2O5Powder can improve mechanical property, improve hardness, improve heat resistance, the alloy of rare earth
Change acts on and the reciprocation with crystal defect, can improve the recrystallization temperature of material；In the high-melting-point rare earth of Dispersed precipitate
Compound and matrix strong bonded, eliminate the illeffects for the trace impurity for being distributed in crystal boundary；Trace element can improve gold
The combination power of metal surface oxide-film and matrix, so that oxide-film becomes firm protective layer, further alloy matrix aluminum resists
Oxidation and resistance to corrosion.
In above-mentioned engine rod piece, silica flour, iron powder, copper powder, zinc powder, the particle diameter of manganese powder are 10-50 μm, TiB2
The particle diameter of grain is 50-100 μm, CeO2Powder and Y2O5The particle diameter of powder is 30-200nm.Found through constantly experiment, the present invention
It is middle to add suitable TiB2Particle, can significantly improve intensity and hardness after less than 50 μm powder compactings of particle diameter.If powder
Particle diameter is more than 70 μm, it is compressing after intensity, the hardness of alloy matrix aluminum can be greatly lowered.
In above-mentioned engine rod piece, the aluminium powder is atomized aluminium, middle aluminium powder, the mixture of Grenaille, atomized aluminium,
Middle aluminium powder, Grenaille account for 10-20%, 70-85% and 5-10% of aluminium powder gross mass respectively.
In above-mentioned engine rod piece, the particle diameter of atomized aluminium is 3-10 μm, and the particle diameter of middle aluminium powder is 20-50 μm, crude aluminum
The particle diameter of powder is 120-200 μm.
The alloy matrix aluminum of the present invention does matrix using the aluminium powder of three kinds of different-grain diameter distributions, then coordinates other powder, can
Further improve the density and intensity of rod piece alloy matrix aluminum.It is but same because of TiB in the present invention2Particle can significantly improve grain
Footpath is less than the intensity after 50 μm of powder compactings, so the aluminium powder of rod piece alloy matrix aluminum of the present invention is mainly with 20-50 μm of powder
Based on, coordinate and add suitable Grenaille and atomized aluminium, further improve the density and hardness of rod piece.
The present invention also provides a kind of processing method of engine rod piece, the processing method includes the following steps：
(1) raw material is weighed：Weigh 6-8 parts of silica flour, 0.1-0.3 parts of iron powder, 0.01-0.03 parts of copper powder, zinc powder 0.02-0.05
Part, 0.008-0.03 parts of manganese powder, TiB20.5-2 parts of particle, CeO20.1-0.3 parts of powder, Y2O50.1-0.3 parts of powder, aluminium powder
85-95 parts；
(2) powder metallurgy：By the hot-forming green compact for obtaining engine rod piece of metal dust, then burnt at 650-700 DEG C
1-3h is tied, obtains matrix blank；
(3) coating：In one layer of magnesium powder of matrix blank surface uniform fold, surface ion beam bombardment processing is then carried out, is obtained
Engine rod piece semi-finished product；
(4) it is heat-treated：Engine rod piece semi-finished product are heat-treated, obtain engine rod piece finished product.
Matrix blank is first made using powder compacting in the present invention, then covers magnesium powder on the surface of matrix blank, then carry out
Helium ion beam high velocity bombardment, the atom for enabling aluminum alloy to the various elements on surface are mutually fused with magnesium atom, are formed new surface and are closed
Metallographic, that is, form alloy protecting film, greatly strengthen the wearability and corrosion resistance of aluminium alloy.Wherein, rich magnesium coating makes aluminium
Obvious negative shifting occurs for the open circuit potential of alloy substrate, and keeps stablizing in the long period, significantly postpones what matrix corroded
Time；The presence of spot corrosion causes the magnesium powder rate of dissolution in rich magnesium coating to accelerate, and the rich magnesium coating of matrix surface of the present invention can
Suppress the generation and development of aluminum alloy surface spot corrosion to a certain extent, can more effectively protect matrix.And the present invention uses ion
Beam bombardment processing, can preferably be such that magnesium atom is mutually merged with matrix surface each element.
In the processing method of above-mentioned engine rod piece, hot-forming temperature is 220-240 DEG C, and compacting pressure is 230-
240MPa, dwell time 3-8min.TiB is added in inventive engine rod piece alloy matrix aluminum powder2Particle and
CeO2Powder and Y2O5Powder and most of powder diameter is respectively less than 50 μm, thus rod piece of the present invention at 220-240 DEG C, in 230-
The compressing intensity and wearability that can guarantee that rod piece of 240MPa.
In the processing method of above-mentioned engine rod piece, the surface treatment intermediate ion beam is helium ion beam, and ion beam bangs
It is 160-240m/s to hit speed, and bombardment number is 3-5 times.Bombarded using high speed helium ion beam, bring huge energy, energy
So that the various atoms of aluminum alloy surface are blended with magnesium atom within the extremely short time, so that new surface alloy phases are formed,
Lift properties of product.
In the processing method of above-mentioned engine rod piece, the heat treatment includes solution treatment and ageing treatment, solid solution
Finishing again is further included between processing and ageing treatment.
Preferably, the temperature of the solution treatment is 380-420 DEG C, the time for being dissolved insulation is 1-3h, is quenched as sky
Cold, the temperature of ageing treatment is 220-240 DEG C, and the time of timeliness insulation is 30-100min.The solution treatment of general aluminium alloy
Temperature is about 450-550 DEG C, but inventive engine rod piece is formed by powder compacting, and is coated in aluminium alloy matrix surface
Magnesium powder is handled by ion beam bombardment, so temperature needs to be reduced to 380-420 DEG C in the heat treatment of the present invention, in the present invention
In the magnesium powder on rod piece surface can be influenced if solid solubility temperature is more than 430 DEG C, and then influence the wearability and corrosion resistance of rod piece.
Preferably, 3 after the completion of quenching interior progress finishing again, interior progress when 3 after the completion of finishing are small again when small
Ageing treatment.
Compared with prior art, the invention has the advantages that：
1st, alloy matrix aluminum of the present invention adds suitable TiB in underlying metal powder2Particle, CeO2Powder, Y2O5Powder,
TiB2The presence of particle can not only play good invigoration effect, can also effectively suppress to balance phase Al13Fe4Precipitation, and
Crystal grain thinning, increases substantially the intensity of engine rod piece matrix.
2nd, the present invention uses powder compacting, and covers one layer of magnesium powder in matrix surface, is banged with surface ion beam is then carried out
Hit processing, and by the heat treatment of lower temperature, further improve the intensity, wearability and corrosion resistance of engine rod piece.
Embodiment
It is below the specific embodiment of the present invention, and technical scheme is further described, but the present invention
It is not limited to these embodiments.
Embodiment 1
A kind of engine rod piece, the engine rod piece includes alloy matrix aluminum and the average thickness of matrix surface is
40 μm of rich magnesium coatings, the alloy matrix aluminum include the raw material components of following mass fraction：7 parts of silica flour, 0.2 part of iron powder, copper powder
0.02 part, 0.04 part of zinc powder, 0.02 part of manganese powder, TiB21.2 parts of particle, CeO20.2 part of powder, Y2O50.2 part of powder, aluminium powder 90
Part.Wherein, silica flour, iron powder, copper powder, zinc powder, the average grain diameter of manganese powder are 30 μm, TiB2The average grain diameter of particle is 80 μm,
CeO2Powder and Y2O5The average grain diameter of powder is 100nm；Aluminium powder is atomized aluminium, middle aluminium powder, the mixture of Grenaille, thin aluminium
Powder, middle aluminium powder, Grenaille account for 15%, 77% and the 8% of aluminium powder gross mass respectively, i.e., respectively 13.5 parts, 69.3 parts and 7.2
Part；The average grain diameter of atomized aluminium is 6 μm, and the average grain diameter of middle aluminium powder is 30 μm, and the average grain diameter of Grenaille is 150 μm.
Embodiment 2
A kind of engine rod piece, the engine rod piece includes alloy matrix aluminum and the average thickness of matrix surface is
50 μm of rich magnesium coatings, the alloy matrix aluminum include the raw material components of following mass fraction：7 parts of silica flour, 0.15 part of iron powder, copper powder
0.025 part, 0.025 part of zinc powder, 0.01 part of manganese powder, TiB21.5 parts of particle, CeO20.15 part of powder, Y2O50.25 part of powder, aluminium
88 parts of powder.Wherein, silica flour, iron powder, copper powder, zinc powder, the particle diameter of manganese powder are 40 μm, TiB2The particle diameter of particle is 90 μm, CeO2Powder
End and Y2O5The particle diameter of powder is 150nm；Aluminium powder for atomized aluminium, middle aluminium powder, the mixture of Grenaille, atomized aluminium, middle aluminium powder,
Grenaille is respectively 11 parts, 72 parts, 5 parts；The particle diameter of atomized aluminium is 8 μm, and the particle diameter of middle aluminium powder is 40 μm, and the particle diameter of Grenaille is
180μm。
Embodiment 3
A kind of engine rod piece, the engine rod piece includes alloy matrix aluminum and the average thickness of matrix surface is
30 μm of rich magnesium coatings, the alloy matrix aluminum include the raw material components of following mass fraction：8 parts of silica flour, 0.25 part of iron powder, copper powder
0.015 part, 0.04 part of zinc powder, 0.02 part of manganese powder, TiB20.8 part of particle, CeO20.25 part of powder, Y2O50.15 part of powder, aluminium powder
92 parts.Wherein, silica flour, iron powder, copper powder, zinc powder, the particle diameter of manganese powder are 20 μm, TiB2The particle diameter of particle is 60 μm, CeO2Powder
With Y2O5The particle diameter of powder is 60nm；Aluminium powder is atomized aluminium, middle aluminium powder, the mixture of Grenaille, atomized aluminium, middle aluminium powder, crude aluminum
Powder is respectively 16 parts, 69 parts and 7 parts；The particle diameter of atomized aluminium is 3-10 μm, and the particle diameter of middle aluminium powder is 20-50 μm, the grain of Grenaille
Footpath is 120-200 μm.
Embodiment 4
A kind of engine rod piece, the engine rod piece includes alloy matrix aluminum and the average thickness of matrix surface is
60 μm of rich magnesium coatings, the alloy matrix aluminum include the raw material components of following mass fraction：8 parts of silica flour, 0.1 part of iron powder, copper powder
0.03 part, 0.02 part of zinc powder, 0.03 part of manganese powder, TiB20.5 part of particle, CeO20.3 part of powder, Y2O50.1 part of powder, aluminium powder 95
Part.Wherein, silica flour, iron powder, copper powder, zinc powder, the average grain diameter of manganese powder are 10 μm, TiB2The average grain diameter of particle is 50 μm,
CeO2Powder and Y2O5The average grain diameter of powder is 30nm；Aluminium powder is atomized aluminium, middle aluminium powder, the mixture of Grenaille, thin aluminium
Powder, middle aluminium powder, Grenaille distinguish 10 parts, 80 parts, 5 parts of part；The average grain diameter of atomized aluminium is 10 μm, and the average grain diameter of middle aluminium powder is
50 μm, the average grain diameter of Grenaille is 200 μm.
Embodiment 5
A kind of engine rod piece, the engine rod piece includes alloy matrix aluminum and the average thickness of matrix surface is
20 μm of rich magnesium coatings, the alloy matrix aluminum include the raw material components of following mass fraction：6 parts of silica flour, 0.3 part of iron powder, copper powder
0.01 part, 0.05 part of zinc powder, 0.008 part of manganese powder, TiB22 parts of particle, CeO20.1 part of powder, Y2O50.3 part of powder, aluminium powder 85
Part.Wherein, silica flour, iron powder, copper powder, zinc powder, the particle diameter of manganese powder are 50 μm, TiB2The particle diameter of particle is 100 μm, CeO2Powder
With Y2O5The particle diameter of powder is 200nm；Aluminium powder is atomized aluminium, middle aluminium powder, the mixture of Grenaille, atomized aluminium, middle aluminium powder, thick
Aluminium powder accounts for 20%, 70% and the 10% of aluminium powder gross mass, that is, respectively 17 parts, 59.5 parts and 8.5 parts respectively；Atomized aluminium
Average grain diameter is 3-10 μm, and the average grain diameter of middle aluminium powder is 20-50 μm, and the average grain diameter of Grenaille is 120-200 μm.
Embodiment 6
(1) alloy matrix aluminum raw material as described in example 1 above is weighed；
(2) powder metallurgy：By metal dust, pressurize 5min obtains the green compact of engine rod piece under 230 DEG C and 235MPa, so
2h is sintered at 680 DEG C afterwards, obtains matrix blank；
(3) it is surface-treated：In one layer of magnesium powder of matrix blank surface uniform fold, then carry out at surface ion beam bombardment
Reason, obtains engine rod piece semi-finished product；Ion beam is helium ion beam, and ion beam bombardment speed is 200m/s, and bombardment number is 4 times；
(4) it is heat-treated：Engine rod piece semi-finished product are first kept the temperature into 2h at 400 DEG C, it is air-cooled after the completion of the 2nd hour carry out
Finishing again, again the 2nd after the completion of finishing hour carry out ageing treatment, the temperature of ageing treatment is 230 DEG C, timeliness insulation
Time be 60min, obtain engine rod piece finished product.
Embodiment 7
(1) alloy matrix aluminum raw material as described in example 2 above is weighed；
(2) powder metallurgy：By metal dust, pressurize 7min obtains the green compact of engine rod piece under 225 DEG C and 232MPa, so
2.5h is sintered at 670 DEG C afterwards, obtains matrix blank；
(3) it is surface-treated：In one layer of magnesium powder of matrix blank surface uniform fold, then carry out at surface ion beam bombardment
Reason, obtains engine rod piece semi-finished product；Ion beam is helium ion beam, and ion beam bombardment speed is 220m/s, and bombardment number is 3 times；
(4) it is heat-treated：Engine rod piece semi-finished product are first kept the temperature into 2h at 390 DEG C, it is air-cooled after 3 it is small when interior progress again
Finishing, interior carry out ageing treatment when 3 after the completion of finishing are small again, the temperature of ageing treatment is 225 DEG C, the time of timeliness insulation
For 80min, engine rod piece finished product is obtained.
Embodiment 8
(1) alloy matrix aluminum raw material as described in example 3 above is weighed；
(2) powder metallurgy：By metal dust, pressurize 4min obtains the green compact of engine rod piece under 235 DEG C and 238MPa, so
1.5h is sintered at 660 DEG C afterwards, obtains matrix blank；
(3) it is surface-treated：In one layer of magnesium powder of matrix blank surface uniform fold, then carry out at surface ion beam bombardment
Reason, obtains engine rod piece semi-finished product；Ion beam is helium ion beam, and ion beam bombardment speed is 180m/s, and bombardment number is 5 times；
(4) it is heat-treated：Engine rod piece semi-finished product are first kept the temperature into 1h at 410 DEG C, it is air-cooled after 3 it is small when interior progress again
Finishing, interior carry out ageing treatment when 3 after the completion of finishing are small again, the temperature of ageing treatment is 235 DEG C, the time of timeliness insulation
For 30-100min, engine rod piece finished product is obtained.
Embodiment 9
(1) alloy matrix aluminum raw material as described in example 4 above is weighed；
(2) powder metallurgy：By metal dust, pressurize 3min obtains the green compact of engine rod piece under 240 DEG C and 240MPa, so
1h is sintered at 700 DEG C afterwards, obtains matrix blank；
(3) it is surface-treated：In one layer of magnesium powder of matrix blank surface uniform fold, then carry out at surface ion beam bombardment
Reason, obtains engine rod piece semi-finished product；Ion beam is helium ion beam, and ion beam bombardment speed is 240m/s, and bombardment number is 3 times；
(4) it is heat-treated：Engine rod piece semi-finished product are first kept the temperature into 3h at 420 DEG C, it is air-cooled after the completion of 3 it is small when interior progress again
Secondary finishing, interior carry out ageing treatment when 3 after the completion of finishing are small again, the temperature of ageing treatment are 240 DEG C, timeliness insulation when
Between be 30min, obtain engine rod piece finished product.
Embodiment 10
(1) alloy matrix aluminum raw material as described in example 5 above is weighed；
(2) powder metallurgy：By metal dust, pressurize 8min obtains the green compact of engine rod piece under 220 DEG C and 230MPa, so
3h is sintered at 650 DEG C afterwards, obtains matrix blank；
(3) it is surface-treated：In one layer of magnesium powder of matrix blank surface uniform fold, then carry out at surface ion beam bombardment
Reason, obtains engine rod piece semi-finished product；Ion beam is helium ion beam, and ion beam bombardment speed is 160m/s, and bombardment number is 5 times；
(4) it is heat-treated：Engine rod piece semi-finished product are first kept the temperature into 3h at 380 DEG C, it is air-cooled after 3 it is small when interior progress again
Secondary finishing, carries out ageing treatment when 2 after the completion of finishing are small again, the temperature of ageing treatment is 220 DEG C, the time of timeliness insulation
For 100min, engine rod piece finished product is obtained.
Comparative example 1
Common commercially available engine rod piece in the prior art.
Comparative example 2
The comparative example 2 is that engine bar is made by the moulding process in embodiment 6 using the material powder in embodiment 1
There was only alloy matrix aluminum in part, i.e. comparative example 2, matrix surface does not have magnesium powder protective coating.
Comparative example 3
With differing only in for embodiment 6, TiB is not contained in the metal dust of the comparative example 32Particle.
Comparative example 4
With differing only in for embodiment 6, CeO is not contained in the metal dust of the comparative example 42Powder.
Comparative example 5
With differing only in for embodiment 6, Y is not contained in the metal dust of the comparative example 52O5Powder.
Comparative example 6
With differing only in for embodiment 6, which is by the way that magnesium powder is dissolved in epoxy resin, adds curing agent
Coating is first made, re-coating is arrived matrix surface, i.e., do not handled in comparative example 6 by ion beam bombardment.
Comparative example 7
With differing only in for embodiment 6, the solid solution temperature of the comparative example 7 is 550 DEG C.
Obtained engine rod piece in embodiment 6-10 and comparative example 1-7 is tested for the property, with city in comparative example 1
On the basis of the performance for the common engine rod piece bought, raising or the reduced rate of other engine rod piece performances are tested, is surveyed
Test result is as shown in table 1.
Table 1：
In conclusion inventive engine rod piece is applied using alloy matrix aluminum and the rich magnesium coated in base matrix surface
Layer, the metal dust of rational proportion alloy matrix aluminum, then with hot compacting, surface ion beam bombardment processing richness magnesium coating and
The heat treatment of lower temperature, further improves hardness, intensity, wearability and the corrosion resistance of engine rod piece.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or supplement to described specific embodiment or substitute in a similar way, but simultaneously
The spirit or beyond the scope of the appended claims of the present invention is not deviated by.
It is skilled to this area 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. a kind of engine rod piece, it is characterised in that the engine rod piece includes alloy matrix aluminum and matrix surface
Rich magnesium coating, the alloy matrix aluminum include the raw material components of following mass fraction：6-8 parts of silica flour, 0.1-0.3 parts of iron powder, copper
0.01-0.03 parts of powder, 0.02-0.05 parts of zinc powder, 0.008-0.03 parts of manganese powder, TiB20.5-2 parts of particle, CeO2Powder 0.1-0.3
Part, Y2O50.1-0.3 parts of powder, 85-95 parts of aluminium powder.
2. engine rod piece according to claim 1, it is characterised in that silica flour, iron powder, copper powder, zinc powder, manganese powder are averaged
Particle diameter is 10-50 μm, TiB2The average grain diameter of particle is 50-100 μm, CeO2Powder and Y2O5The average grain diameter of powder is
30-200nm。
3. engine rod piece according to claim 1, it is characterised in that the aluminium powder is atomized aluminium, middle aluminium powder, crude aluminum
The mixture of powder, atomized aluminium, middle aluminium powder, Grenaille account for 10-20%, 70-85% and 5-10% of aluminium powder gross mass respectively.
4. engine rod piece according to claim 3, it is characterised in that the average grain diameter of atomized aluminium is 3-10 μm, middle aluminium
The average grain diameter of powder is 20-50 μm, and the average grain diameter of Grenaille is 120-200 μm.
5. a kind of processing method of engine rod piece, it is characterised in that the processing method includes the following steps：
(1) raw material is weighed：Weigh 6-8 parts of silica flour, 0.1-0.3 parts of iron powder, 0.01-0.03 parts of copper powder, 0.02-0.05 parts of zinc powder,
0.008-0.03 parts of manganese powder, 0.1-0.3 parts of titanium valve, TiB20.5-2 parts of particle, CeO20.1-0.3 parts of powder, Y2O5Powder 0.1-
0.3 part, 89-94 parts of aluminium powder；
(2) powder metallurgy：By the hot-forming green compact for obtaining engine rod piece of metal dust, then 1- is sintered at 650-700 DEG C
3h, obtains matrix blank；
(3) it is surface-treated：In one layer of magnesium powder of matrix blank surface uniform fold, surface ion beam bombardment processing is then carried out, is obtained
Engine rod piece semi-finished product；
(4) it is heat-treated：Engine rod piece semi-finished product are heat-treated, obtain engine rod piece finished product.
6. the processing method of engine rod piece according to claim 5, it is characterised in that hot-forming temperature is 220-
240 DEG C, compacting pressure is 230-240MPa, dwell time 3-8min.
7. the processing method of engine rod piece according to claim 5, it is characterised in that the surface treatment intermediate ion beam
For helium ion beam, ion beam bombardment speed is 160-240m/s, and bombardment number is 3-5 times.
8. the processing method of engine rod piece according to claim 5, it is characterised in that the heat treatment includes solid solution
Processing and ageing treatment, further include finishing again between solution treatment and ageing treatment.
9. the processing method of engine rod piece according to claim 8, it is characterised in that the temperature of the solution treatment is
380-420 DEG C, the time for being dissolved insulation is 1-3h, is quenched to be air-cooled, and the temperature of ageing treatment is 220-240 DEG C, timeliness insulation
Time be 30-100min.
10. the processing method of engine rod piece according to claim 8, it is characterised in that 3 after the completion of quenching is interior when small
Carry out finishing again, interior carry out ageing treatment when 3 after the completion of finishing are small again.
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| CN108559887A (en) * | 2018-04-26 | 2018-09-21 | 宁波摩尔克斯灯杆技术有限公司 | A kind of corrosion-resistant aluminum garden lamp bar and its processing method |
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