CN105234411B - A kind of preparation method of powder metallurgy phaser rotor - Google Patents
A kind of preparation method of powder metallurgy phaser rotor Download PDFInfo
- Publication number
- CN105234411B CN105234411B CN201410330300.6A CN201410330300A CN105234411B CN 105234411 B CN105234411 B CN 105234411B CN 201410330300 A CN201410330300 A CN 201410330300A CN 105234411 B CN105234411 B CN 105234411B
- Authority
- CN
- China
- Prior art keywords
- powder
- rotor
- preparation
- aluminium
- carried out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of preparation method of powder metallurgy phaser rotor, step：Aluminium powder, high alloy female powder, copper powder, nickel powder and organic lubricant are mixed by following mass ratios：Copper 4.0~5.0%, magnesium 0.5~1.0%, iron 0.5~1.0%；Nickel 2.0~2.5%, silicon 0.5~1.0%, organic lubricant：0.8~1.5%, the inevitable impurity no more than 2%, surplus is aluminium；It is compressing to obtain powder metallurgy green compact, then sinter, solution hardening processing, finishing is pressed again, Ageing Treatment finally carries out turnery processing to rotor, reaches final size requirement.The present invention is compared with the rotor of sintered steel material, and suppression performance is good, and faster, pressing cost is reduced speed；The temperature of sintered aluminum alloy is far below energy consumption in sintered steel, sintering process and reduced, and the processing characteristics of powder metallurgy aluminium rotor is more preferable, and surfacecti proteon processing need not be carried out in transport and storing process；Compared with die casting or extruding aluminium alloy rotor, powder metallurgy is a kind of technology of near-net-shape, and raw material of aluminum alloy utilization rate is high, and production efficiency is high, and production cost is low.
Description
Technical field
The invention belongs to powder metallurgical technology, specifically a kind of preparation method of powder metallurgy phaser rotor,
Applied to variable valve timing system of engine.
Background technology
VVT can optimize valve characteristic parameter, improve engine inlet and outlet performance, preferably meet engine
In high rotating speed and the slow-speed of revolution, big load and Smaller load, the requirement of dynamic property, economy, waste gas discharge, overall to improve engine
Combination property.Classify by structure type, hydraulic continuous variable phase device can substantially be divided into vane type and the major class of plunger type two.Blade
Formula continuous variable cam phaser system acts on blade by internal oil pressure deflects it, realizes the stepless-adjustment at phase angle
Section, under identical circumstances, has in terms of phase adjustment range and response speed and is significantly lifted, and in starting, idling etc.
Locking system also fully ensured the reliability of system, obtain engine performance has bigger change compared to other phasers
It is kind.The critical piece of vane type cam phaser is made up of stator and rotor, and stator is fixedly connected with travelling gear, and the latter passes through
Axial centre bolt is connected with camshaft torque resistant, wherein, rotor is constituted as impeller.
At present in VVT industry, vane type phaser rotor generally uses sintered steel or die casting, extruding
Aluminium alloy is manufactured.Steel rotor consistency is sintered about 90%, there is the hole of connection, it may occur however that oil leakage, during finishing
It is costly, it is heavier.With the requirement of automotive light weight technology, aluminium alloy phaser rotor is occurred in that, version is die casting or squeezed
Machined after die mould material, processing capacity is big, and high processing costs, stock utilization is low, due to the limitation of manufacture method, material composition phase
To fixation, alloying element can not arbitrarily change, it is impossible to product of the manufacture containing high silicon content or containing silicon-carbide particle.Die casting
In the presence of some inherent shortcomings, such as：In casting, the temperature of liquation front end is too low, output vestige (cold line) when being stacked；Easily production
The defects such as angry hole, shrinkage cavity, microscopic structure is uneven, and surface microstructure is thinner, center portion coarse grains, has a strong impact on the mechanics of part
Performance；Most of pack alloys can not be heat-treated, so intensity is not high.Crimp aluminium-alloy rotor is thermally processable strong
Change, mechanical property is higher, but complex manufacturing, for complex-shaped and high required precision product, it is necessary to carry out substantial amounts of
Machining, production cost is high.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of technique is simple, production efficiency is high, low cost powder smelting
The preparation method of gold phaser rotor processed, can be adapted to batch production, and obtained powder metallurgy phaser rotor has preferable
Mechanical property.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of system of powder metallurgy phaser rotor
Preparation Method, it is characterised in that comprise the following steps successively：
1) by aluminium powder, Al-Mg alloys female powder, Al-Si alloys female powder, Al-Fe alloys female powder, copper powder, nickel powder and organic profit
Lubrication prescription is mixed into mixed powder by following mass ratios so that weight/mass percentage composition of each element in total component be：Copper 4.0~
5.0%, magnesium 0.5~1.0%, iron 0.5~1.0%；Nickel 2.0~2.5%, silicon 0.5~1.0%, organic lubricant：0.8~
1.5%, the inevitable impurity no more than 2%, surplus is aluminium；
2) powder metallurgy green compact are obtained using mould is compressing, 200~600MPa of forming pressure, shaping density is more than
2.50g/cm3；
3) powder metallurgy green compact are placed in sintering furnace and be sintered, sintering temperature is 580~605 DEG C, sintering time 30
~90min, 2.60~2.70g/cm of sintered blank density3, sintering atmosphere can be vacuum or high pure nitrogen.
4) solution treatment, 520~540 DEG C of solid solubility temperature, solid solution 30~60min of soaking time, quenching are then carried out；
5) sintered blank after Quenching Treatment is pressed into finishing again, presses finishing deflection to be more than 5% again；
6) Ageing Treatment is carried out to part, aging temp is 175~195 DEG C, 6~14h of aging time；
7) turnery processing is carried out to rotor, reaches final size requirement；
8) sandblasting is carried out to part and removes flash removed.
Preferably, the step 1) aluminium powder use high-purity atomizing aluminium powder, oxygen content is less than 0.2 in the atomizing aluminium powder
(wt) %, suppression performance is more than 2.60g/cm under 250MPa3, apparent density is more than 1.05g/cm3, 25~30s/50g of flow velocity,
Particle mean size is between 150 ± 10 μm.
Preferably, the step 1) Al-Mg alloy female powders in Mg contents be 19~51 (wt) %, oxygen content is less than
0.2 (wt) %, particle mean size is 5~8 μm；Si contents are 36~38 (wt) % in Al-Si alloy female powders, and oxygen content is less than 0.2
(wt) %, particle mean size is 10~15 μm；Fe contents are 9~11 (wt) % in Al-Fe alloyed powders, and oxygen content is less than 0.2
(wt) %, particle mean size is 10~15 μm, and copper powder is electrolytic copper powder, and copper content >=99.9 (wt) %, particle mean size is 8~10 μ
m；Nickel powder is carbonyl nickel powder, and nickel content >=99.9 (wt) %, Pingdu granularity is 3.0~5.5 μm.
Preferably, the step 1) organic lubricant be wax class or acid amides series lubricant agent.
Preferably, the step 2) mould use hard alloy former and high-speed steel stamping, forming pressure be 250~
400MPa。
Be used as improvement, the step 4) hardening media be water, quenching shift time≤10s.
Improve again, the step 5) multiple pressure finishing need to after solid solution-Quenching Treatment in 4 hours carry out, again press finishing exist
On shaping press, full shaping is carried out in shaping mould.The deformation of the rectifiable powder metallurgy rotor because of caused by sintering of shaping,
Make part closer to drawing size, while providing deformation for the timeliness of next step, shorten aging time.
Improve again, the step 6) Ageing Treatment need to it is multiple pressure finishing after in 2 hours carry out.
Preferably, the step 7) turnery processing use diamond cutter.
As improvement, the step 8) abrasive material that uses of sandblasting is alumina particle or steel sand, and particle size is less than 200 μ
M, blast time is more than 30 seconds.
Compared with prior art, the advantage of the invention is that：High there is provided a kind of stock utilization, production cost is low, fits
Together in the aluminium-alloy rotor production method of production in enormous quantities, compared with the rotor of sintered steel material, Al alloy powder suppression performance is good,
Required pressure is only the half of iron powder during compacting, so allows for compacting tool set with longer service life, pressing speed is more
It hurry up, pressing cost reduction；The temperature of sintered aluminum alloy is far below energy consumption in sintered steel, sintering process and reduced；In sintering process
Only need nitrogen as protective atmosphere, economic benefit is improved；The processing characteristics of powder metallurgy aluminium rotor is more preferable, including process velocity
Faster, surface roughness is good, and cutter life is long；Surfacecti proteon processing need not be carried out in transport and storing process.With die casting
Or extruding aluminium alloy rotor is compared, powder metallurgy is a kind of technology of near-net-shape, and raw material of aluminum alloy utilization rate is high, production effect
Rate is high, and production cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the powder metallurgy phaser rotor of the present invention；
Fig. 2 (a) is pure aluminium powder powder particle shape appearance figure used by the POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor of the present invention；
Fig. 2 (b) is the powder particle pattern of Al-Mg alloyed powders used by the POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor of the present invention
Figure；
Fig. 2 (c) is the powder particle pattern of Al-Si alloyed powders used by the POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor of the present invention
Figure；
Fig. 2 (d) is the powder particle pattern of Al-Fe alloyed powders used by the POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor of the present invention
Figure；
Fig. 2 (e) is the powder particle shape appearance figure of electrolytic copper powder used by the POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor of the present invention；
Fig. 2 (f) is the powder particle shape appearance figure of carbonyl nickel powder used by the POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor of the present invention；
Fig. 3 is the hole photo after the powder metallurgy phaser rotor sintering of the present invention；
Fig. 4 is the microstructure picture after the powder metallurgy phaser rotor heat treatment of the present invention.
Embodiment
According to the features of the present invention, mix designs aluminum bronze magnesium iron nickel system alloy material, element powder are carried out using element powders
End is compressing by mixing rear chamber temperature, is then sintered in vacuum sintering furnace or meshbeltfurnace, and sintered products carry out solid solution again, whole
Shape, timeliness, machining, deburring processing, obtain size and performance are satisfied by the phaser rotor of performance.
Embodiment 1
1st, by aluminium powder, high alloy female powder (Al-Mg alloys female powder, Al-Si alloys female powder, Al-Fe alloys female powder), copper powder,
Nickel powder and organic lubricant are mixed by following mass ratios so that weight/mass percentage composition of each element in total component be：Copper
5.0%, magnesium 0.55%, iron 0.55%；Nickel 2.2%, silicon 0.8%, wax class lubricant：1.0%, it is inevitable no more than 2%
Impurity, surplus is aluminium；Wherein Mg is added in the form of Al-Mg foundry alloy powder, and Mg contents are 50 in Al-Mg alloy female powders
(wt) %；Si is added in the form of Al-Si foundry alloy powder, and Si contents are 25 (wt) % in Al-Si alloy female powders；Fe is with Al-Fe
The form of foundry alloy powder is added, and Fe contents are 10 (wt) % in Al-Fe alloyed powders；Copper is added in the form of electrolytic copper powder；Nickel with
The form of carbonyl nickel powder is added.Double cone mixer is used during batch mixing, batch mixer rotating speed is 15rpm, mixing time 30min.
2nd, by well mixed rotor material powder, it is 250MPa that pressure is shaped in the mould of design, compressing
To powder metallurgy aluminium rotor green compact, the shaping density of green compact is 2.60g/cm3。
3rd, compressing powder metallurgy rotor is placed on the guipure of continuous fritting furnace and be sintered.Sintering temperature is
580 DEG C, sintering atmosphere is high pure nitrogen, and nitrogen dew point is less than -45 DEG C, sintering time 90 minutes, the sintering of powder metallurgy rotor
Consistency is 92%.
4th, powder metallurgy rotor carries out solid solution, Quenching Treatment after deburring, and solid solubility temperature is 520 DEG C, solid solution soaking time
For 60min, hardening media is water, quenching shift time≤10s.
5th, the rotor after solid solution-Quenching Treatment was pressed into finishing again in 4 hours, finishing is pressed again on shaping press,
Full shaping is carried out in shaping mould, shaping deflection is 8%.
6th, the rotor after finishing carried out Ageing Treatment, 175 DEG C, aging time 14h in 2 hours.
7th, by phaser rotor drawing, two planes to rotor carry out precision turning.
8th, sandblasting deburring processing is carried out to part.
Rotor and the rotor performance of sintered steel material obtained by embodiment 1 are contrasted：
The performance comparison of the powder aluminium material of table 1 and steel matter rotor
Embodiment 2
1st, by aluminium powder, high alloy female powder (Al-Mg alloys female powder, Al-Si alloys female powder, Al-Fe alloys female powder), copper powder,
Nickel powder and organic lubricant are mixed by following mass ratios so that weight/mass percentage composition of each element in total component be：Copper
4.5%, magnesium 0.80%, iron 0.80%；Nickel 2.0%, silicon 0.55%, wax class lubricant：1.2%, it is inevitable no more than 2%
Impurity, surplus is aluminium；Wherein Mg is added in the form of Al-Mg foundry alloy powder, and Mg contents are 25 in Al-Mg alloy female powders
(wt) %；Si is added in the form of Al-Si foundry alloy powder, and Si contents are 37 (wt) % in Al-Si alloy female powders；Fe is with Al-Fe
The form of foundry alloy powder is added, and Fe contents are 10 (wt) % in Al-Fe alloyed powders；Copper is added in the form of electrolytic copper powder；Nickel with
The form of carbonyl nickel powder is added.Double cone mixer is used during batch mixing, batch mixer rotating speed is 15rpm, mixing time 30min.
2nd, by well mixed rotor material powder, it is 400MPa that pressure is shaped in the mould of design, compressing
To powder metallurgy aluminium rotor green compact, the shaping density of green compact is 2.65g/cm3。
3rd, compressing powder metallurgy rotor is placed on the guipure of continuous fritting furnace and be sintered.Sintering temperature is
595 DEG C, sintering atmosphere is high pure nitrogen, and nitrogen dew point is less than -45 DEG C, sintering time 60 minutes, the sintering of powder metallurgy rotor
Consistency is 92%.
4th, powder metallurgy rotor carries out solid solution, Quenching Treatment after deburring, and solid solubility temperature is 520 DEG C, solid solution soaking time
For 60min, hardening media is water, quenching shift time≤10s.
5th, the rotor after solid solution-Quenching Treatment was pressed into finishing again in 4 hours, finishing is pressed again on shaping press,
Full shaping is carried out in shaping mould, shaping deflection is 8%.
6th, the rotor after finishing carried out Ageing Treatment, 175 DEG C, aging time 14h in 2 hours.
7th, by phaser rotor drawing, two planes to rotor carry out precision turning.
8th, sandblasting deburring processing is carried out to part.
Embodiment 3
1st, by aluminium powder, high alloy female powder (Al-Mg alloys female powder, Al-Si alloys female powder, Al-Fe alloys female powder), copper powder,
Nickel powder and organic lubricant are mixed by following mass ratios so that weight/mass percentage composition of each element in total component be：Copper
4.5%, magnesium 1.0%, iron 0.80%；Nickel 2.0%, silicon 1.0%, acid amides series lubricant agent：1.5%, it is inevitable no more than 2%
Impurity, surplus is aluminium；Wherein Mg is added in the form of Al-Mg foundry alloy powder, and Mg contents are 25 in Al-Mg alloy female powders
(wt) %；Si is added in the form of Al-Si foundry alloy powder, and Si contents are 37 (wt) % in Al-Si alloy female powders；Fe is with Al-Fe
The form of foundry alloy powder is added, and Fe contents are 10 (wt) % in Al-Fe alloyed powders；Copper is added in the form of electrolytic copper powder；Nickel with
The form of carbonyl nickel powder is added.Double cone mixer is used during batch mixing, batch mixer rotating speed is 15rpm, mixing time 30min.
2nd, by well mixed rotor material powder, it is 400MPa that pressure is shaped in the mould of design, compressing
To powder metallurgy aluminium rotor green compact, the shaping density of green compact is 2.65g/cm3。
3rd, compressing powder metallurgy rotor is placed in vacuum sintering furnace and be sintered.Sintering temperature is 598 DEG C, very
Reciprocal of duty cycle is 0.01Pa, sintering time 45 minutes, and the sintered density of powder metallurgy rotor is 95%.
4th, powder metallurgy rotor carries out solid solution, Quenching Treatment after deburring, and solid solubility temperature is 540 DEG C, solid solution soaking time
For 45min, hardening media is water, quenching shift time≤10s.
5th, the rotor after solid solution-Quenching Treatment was pressed into finishing again in 4 hours, finishing is pressed again on shaping press,
Full shaping is carried out in shaping mould, shaping deflection is 8%.
6th, the rotor after finishing carried out Ageing Treatment, 185 DEG C, aging time 10h in 2 hours.
7th, by phaser rotor drawing, two planes to rotor carry out precision turning.
8th, sandblasting deburring processing is carried out to part.
Embodiment 4
1st, by aluminium powder, high alloy female powder (Al-Mg alloys female powder, Al-Si alloys female powder, Al-Fe alloys female powder), copper powder,
Nickel powder and organic lubricant are mixed by following mass ratios so that weight/mass percentage composition of each element in total component be：Copper
5.0%, magnesium 0.55%, iron 0.55%；Nickel 2.2%, silicon 0.8%, acid amides series lubricant agent：1.0%, can not keep away no more than 2%
Exempt from impurity, surplus is aluminium；Wherein Mg is added in the form of Al-Mg foundry alloy powder, and Mg contents are 50 in Al-Mg alloy female powders
(wt) %；Si is added in the form of Al-Si foundry alloy powder, and Si contents are 25 (wt) % in Al-Si alloy female powders；Fe is with Al-Fe
The form of foundry alloy powder is added, and Fe contents are 10 (wt) % in Al-Fe alloyed powders；Copper is added in the form of electrolytic copper powder；Nickel with
The form of carbonyl nickel powder is added.Double cone mixer is used during batch mixing, batch mixer rotating speed is 15rpm, mixing time 30min.
2nd, by well mixed rotor material powder, it is 400MPa that pressure is shaped in the mould of design, compressing
To powder metallurgy aluminium rotor green compact, the shaping density of green compact is 2.65g/cm3。
3rd, compressing powder metallurgy rotor is placed in vacuum sintering furnace and be sintered.Sintering temperature is 598 DEG C, very
Reciprocal of duty cycle is 0.01Pa, sintering time 45 minutes, and the sintered density of powder metallurgy rotor is 95%.
4th, powder metallurgy rotor carries out solid solution, Quenching Treatment after deburring, and solid solubility temperature is 540 DEG C, solid solution soaking time
For 45min, hardening media is water, quenching shift time≤10s.
5th, the rotor after solid solution-Quenching Treatment was pressed into finishing again in 4 hours, finishing is pressed again on shaping press,
Full shaping is carried out in shaping mould, shaping deflection is 8%.
6th, the rotor after finishing carried out Ageing Treatment, 185 DEG C, aging time 10h in 2 hours.
7th, by phaser rotor drawing, two planes to rotor carry out precision turning.
8th, sandblasting deburring processing is carried out to part.
Claims (10)
1. a kind of preparation method of powder metallurgy phaser rotor, it is characterised in that comprise the following steps successively：
1) by aluminium powder, Al-Mg alloys female powder, Al-Si alloys female powder, Al-Fe alloys female powder, copper powder, nickel powder and organic lubricant
Mixed powder is mixed into by following mass ratios so that weight/mass percentage composition of each element in total component be：4.5%≤copper≤
5.0%, 0.5% ＜ magnesium≤1.0%, 0.5%≤iron ＜ 1.0%；2.0% ＜ nickel≤2.5%, 0.8≤silicon≤1.0%, it is organic
Lubricant：0.8~1.5%, the inevitable impurity no more than 2%, surplus is aluminium；
2) powder metallurgy green compact are obtained using mould is compressing, 200~450MPa of forming pressure, shaping density is more than 2.5g/
cm3；
3) powder metallurgy green compact are placed in sintering furnace and be sintered, sintering temperature is 580~605 DEG C, sintering time 30~90
Minute, 2.60~2.70g/cm of sintered blank density3；
4) solution treatment, 520~540 DEG C of solid solubility temperature, solid solution 30~60min of soaking time, quenching are then carried out；
5) sintered blank after Quenching Treatment is pressed into finishing again, presses finishing deflection to be more than 5% again；
6) Ageing Treatment is carried out to part, aging temp is 175~195 DEG C, 6~14h of aging time；
7) rotor is machined out, reaches final size requirement；
8) sandblasting deburring processing is carried out to part.
2. preparation method according to claim 1, it is characterised in that：The step 1) aluminium powder use high-purity atomized aluminum
Oxygen content is less than 0.2 (wt) % in powder, the atomizing aluminium powder, and suppression performance is more than 2.60g/cm under 250MPa3, apparent density is big
In 1.05g/cm3, 25~30s/50g of flow velocity, particle mean size is between 150 ± 10 μm.
3. preparation method according to claim 1, it is characterised in that：The step 1) Al-Mg alloy female powders in Mg contain
Measure as 19~51 (wt) %, oxygen content is less than 0.2 (wt) %, particle mean size is 5~8 μm；Si contents are in Al-Si alloy female powders
25~38 (wt) %, oxygen content is less than 0.2 (wt) %, and particle mean size is 10~15 μm；In Al-Fe alloyed powders Fe contents be 9~
11 (wt) %, oxygen content is less than 0.2 (wt) %, and particle mean size is 10~15 μm, and copper powder is electrolytic copper powder, copper content >=99.9
(wt) %, particle mean size is 8~10 μm；Nickel powder is carbonyl nickel powder, and nickel content >=99.9 (wt) %, particle mean size is 3.0~5.5
μm。
4. preparation method according to claim 1, it is characterised in that：The step 1) organic lubricant be wax class or acyl
Amine lubricant.
5. preparation method according to claim 1, it is characterised in that：The step 2) mould using hard alloy former and
High-speed steel stamping, forming pressure is 250~400MPa.
6. preparation method according to claim 1, it is characterised in that：The step 3) sintering be vacuum or nitrogen protection
Carried out under atmosphere；When protective atmosphere is High Purity Nitrogen, oxygen content is less than 10PPM, and dew point is less than -40 DEG C, and sintering furnace is meshbeltfurnace；Very
During sky sintering, vacuum is less than 0.01Pa.
7. preparation method according to claim 1, it is characterised in that：The step 4) hardening media be water, quenching turn
Shift time≤10s.
8. preparation method according to claim 1, it is characterised in that：The step 5) multiple pressure finishing need to be in solid solution-quench
Carried out after fire processing in 4 hours, press finishing on shaping press again, full shaping is carried out in shaping mould.
9. preparation method according to claim 1, it is characterised in that：The step 6) Ageing Treatment need to be in multiple pressure finishing
Carried out afterwards in 2 hours.
10. preparation method according to claim 1, it is characterised in that：The step 8) deburring sandblasting use abrasive material
For alumina particle or steel sand, particle size is less than 200 μm, and blast time is more than 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330300.6A CN105234411B (en) | 2014-07-11 | 2014-07-11 | A kind of preparation method of powder metallurgy phaser rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330300.6A CN105234411B (en) | 2014-07-11 | 2014-07-11 | A kind of preparation method of powder metallurgy phaser rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105234411A CN105234411A (en) | 2016-01-13 |
| CN105234411B true CN105234411B (en) | 2017-07-18 |
Family
ID=55032368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410330300.6A Active CN105234411B (en) | 2014-07-11 | 2014-07-11 | A kind of preparation method of powder metallurgy phaser rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105234411B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10773308B2 (en) * | 2017-01-03 | 2020-09-15 | Gkn Sinter Metals, Llc | Rotor and method of manufacturing rotor with equalized surface areas for grinding |
| CA3028195A1 (en) | 2018-01-10 | 2019-07-10 | Gkn Sinter Metals, Llc | Method for improving fatigue strength on sized aluminum powder metal components |
| CN110238402A (en) * | 2019-03-27 | 2019-09-17 | 无锡苏明达科技有限公司 | A kind of production method of oxygen sensor pedestal |
| CN114086041B (en) * | 2021-11-23 | 2022-06-14 | 中南大学 | High-strength high-toughness aluminum alloy and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8519691D0 (en) * | 1985-08-06 | 1985-09-11 | Secretary Trade Ind Brit | Sintered aluminium alloys |
| JPH0635602B2 (en) * | 1986-06-04 | 1994-05-11 | 昭和電工株式会社 | Manufacturing method of aluminum alloy sintered forgings |
| DE10203283C5 (en) * | 2002-01-29 | 2009-07-16 | Gkn Sinter Metals Gmbh | Method for producing sintered components from a sinterable material and sintered component |
| JP4312037B2 (en) * | 2003-12-02 | 2009-08-12 | 住友電工焼結合金株式会社 | Heat-resistant and high-toughness aluminum alloy, method for producing the same, and engine parts |
| CN102676958B (en) * | 2012-04-17 | 2014-05-07 | 北京科技大学 | Preparation method of high-performance heat-resistant aluminum alloy for powder metallurgy |
-
2014
- 2014-07-11 CN CN201410330300.6A patent/CN105234411B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105234411A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105063438B (en) | A kind of preparation method of high copper silicon magnesium system POWDER METALLURGY ALUMINIUM ALLOYS | |
| CN104889402B (en) | A kind of preparation method of aluminum base powder metallurgy part | |
| CN105234411B (en) | A kind of preparation method of powder metallurgy phaser rotor | |
| CN105710373B (en) | A kind of preparation method of compressor POWDER METALLURGY ALUMINIUM ALLOYS connecting rod | |
| CN105522156B (en) | A kind of manufacture method of powder metallurgy silumin compressor piston | |
| CN106563919B (en) | A kind of preparation method of mobile phone center, rear cover | |
| CN101285135A (en) | Manufacturing method of metal composite and component composed of metal composite | |
| CN111945121A (en) | Tantalum-aluminum alloy sputtering target and preparation method thereof | |
| CN112658221B (en) | Continuous casting method of high-entropy alloy | |
| WO1995028505A1 (en) | Slide member made of sintered aluminum alloy and method of production thereof | |
| CN104550967A (en) | Powder metallurgy process | |
| CN109128137A (en) | Compressor potassium steel balance weight and compressor potassium steel balance weight production method | |
| CN105234412B (en) | A kind of preparation method of POWDER METALLURGY ALUMINIUM ALLOYS phaser rotor | |
| CN104416156B (en) | Chromium-aluminum alloy target material and preparation method thereof | |
| CN107790729B (en) | Method for preparing high-performance aluminum alloy by using powder injection molding technology | |
| CN114150175A (en) | Method for preparing Al-Zn-Mg-Cu aluminum alloy by using powder injection molding technology | |
| CN105463276B (en) | Preparation method of aluminium base powder metallurgy part with densifying surface | |
| JP4666659B2 (en) | Magnesium alloy forged thin casing and method for manufacturing the same | |
| CN111922345B (en) | Comprehensive utilization method of powder by-product generated in spray forming process and application of product | |
| JP3982780B2 (en) | Method for manufacturing forged thin-walled casing made of magnesium alloy | |
| CN110947955A (en) | Powder metallurgy preparation process of inverter insert | |
| CN104593740A (en) | Preparation method of copper-aluminum alloy target billet | |
| CN104694774B (en) | A kind of high temperature insostatic pressing (HIP) preparation method of high-compactness Fine Grain Ti Alloy | |
| CN113118443A (en) | Method for preparing bar by using spray-formed high-silicon aluminum alloy powder | |
| CN111069584A (en) | Powder metallurgy material for aluminum-based gear and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |