CN105257399A - Automobile engine powder metallurgy rotor and manufacturing methods thereof - Google Patents
Automobile engine powder metallurgy rotor and manufacturing methods thereof Download PDFInfo
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- CN105257399A CN105257399A CN201510671219.9A CN201510671219A CN105257399A CN 105257399 A CN105257399 A CN 105257399A CN 201510671219 A CN201510671219 A CN 201510671219A CN 105257399 A CN105257399 A CN 105257399A
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Abstract
The invention discloses an automobile engine powder metallurgy rotor. The automobile engine powder metallurgy rotor comprises a rotor body. The rotor body is a disc component with powder metallurgy as a main body and comprises a disc body and a center hole in the center of the disc body. An axial blind hole is formed in the end face of the rotor body. A radial auxiliary hole is formed in the rotor body, the blind hole and the center hole are communicated through the auxiliary hole, and an oil inlet channel from the end face of the rotor body to the center hole is formed; and a plurality of radial oil outlet holes are formed in the rotor body in the circumference direction and are led to the outer wall of the rotor body from the center hole. The automobile engine powder metallurgy rotor is further characterized in that the oil holes are distributed in different sections perpendicular to the central axis of the center hole. An abrasion resisting composite layer is arranged on the wall of an inner hole of the center hole. The invention further discloses three manufacturing methods for the automobile engine powder metallurgy rotor. The automobile engine powder metallurgy rotor is high in structural strength, high in strength and tenacity, good in abrasion resistance and long in service life, and can provide sufficient lubrication,.
Description
Technical field
The present invention relates to a kind of automotive engine applications, more particularly, the present invention relates to a kind of motor car engine powder metallurgy rotor and manufacture method thereof.
Background technique
Engine rotor is one of part of motor key, and be the discoid component based on powder metallurgy, center is provided with center hole.When engine rotor rotates, rotor and stator produce relative rotation, and owing to there being relative contact, therefore surface of contact has friction, owing to being High Rotation Speed, therefore, need to carry out sufficient lubrication.The engine rotor of prior art generally adopts splash mode lubricant oil splash to be connected synapsis to rotor and stator, and this mode is lubricated insufficient, and lubrication effect is undesirable.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of motor car engine powder metallurgy rotor that can provide sufficient lubrication is provided, present invention also offers the manufacture method of this rotor.
The present invention is achieved through the following technical solutions technical goal.
Motor car engine powder metallurgy rotor, comprises rotor body; Described rotor body is the discoid component based on powder metallurgy, comprises the center hole at disk body, disk body center; Its improvements are: described rotor body end face is provided with axial blind hole, are provided with radial auxiliary hole in rotor body, blind hole, center hole are communicated with, form the oil inlet passage from rotor body ends towards center hole; Along the circumferential direction be provided with the oil outlet of several radial direction in described rotor body, lead to rotor body outer wall from center hole.
In said structure, described oilhole is distributed on the different cross section perpendicular to center hole central axis.
In said structure, described center hole endoporus hole wall is provided with wear-resistant composite bed.
In said structure, described wear-resistant composite bed be rare earth compound composite bed.
The manufacture method of above-mentioned motor car engine powder metallurgy rotor has three kinds:
Method one, described motor car engine powder metallurgy rotor formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, all the other are iron powder, and each component sum is 100 ﹪; Corresponding technique is green density 7.5g/cm3, and sintering temperature 1200 ~ 1240 DEG C, without temper, its yield strength is 575MPa, and tensile strength reaches 955MPa, and hardness is 98HRB, and impact toughness is 31.3J/cm
2.
Further improvement is, in above-mentioned formula, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm.
Method two, described motor car engine powder metallurgy rotor formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, all the other are iron powder, and each component sum is 100 ﹪; Corresponding technique is green density 7.5g/cm
3, sintering temperature 1200-1240 DEG C, without temper, its yield strength is 578MPa, tensile strength reaches 962MPa, hardness is 80-85HRA, impact toughness is 58J/cm
2.
Further improvement is, in above-mentioned formula, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm.
Method three, described motor car engine powder metallurgy rotor formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, boron 2, all the other are iron powder, each component sum is 100 ﹪, makes through batch mixing, compacting, sintering, heating, forge hot, postprocessing working procedures step.
The present invention compared with prior art, has following good effect:
1, be provided with the oil inlet passage from rotor body ends towards center hole and lead to the oil outlet of rotor body outer wall from center hole, lubricant oil can be guided to rotor body outer wall through center hole from end face like this, thus provide sufficient lubrication for rotor.
2, oilhole is distributed on the different cross section perpendicular to center hole central axis, and lubricant oil can be made to be more evenly distributed.
3, center hole endoporus hole wall is provided with wear-resistant composite bed, can increase the wear resistance of center hole endoporus hole wall.
4, the present invention's formula by weight, and nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, all the other are iron powder, and each component sum is 100 ﹪.Prepared sintered alloy is with compared with the matrix composition alloy Fe.1.75Ni.0.5Mo.1.5Cu.0.5C optimized, and yield strength improves 175MPa, tensile strength improves 355MPa, hardness improves 17HRB, impact toughness improves 5J/cm
2, solve preparation cost high problem when prior art improves sintered alloy obdurability.Prior art improves the problem of the measure of sintered alloy obdurability: add expensive alloying element Ni or Mo, increases the problem of cost of material; Adopt new compacting or sintering process usually to need new equipment, equipment investment is high: increase subsequent treatment process, then add the manufacture cycle, and cost is often higher.
5, the present invention's formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, all the other are iron powder, and each component sum is 100 ﹪.Add rare-earth elements La in formula, the intensity of made powder metallurgy, impact toughness can be significantly improved; Add molybdenum disulfide, play good lubrication regulating action.Prepared sintered alloy yield strength improves 8MPa, and tensile strength improves 12MPa, and impact toughness improves 26.7J/cm
2, hardness is suddenlyd change to 80-85HRA from 98HRB.
6, the present invention's formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, boron 2, all the other are iron powder, each component sum is 100 ﹪, prepared sintered alloy significantly improves decay resistance, extends more than one times working life.
7, the present invention's formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, all the other are iron powder, each component sum is 100 ﹪, in formula, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm, prepared sintered alloy tensile strength improves 257MPa, and hardness is suddenlyd change to 31HRC from 80-85HRA.
8, the present invention's formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, all the other are iron powder, each component sum is 100 ﹪, in formula, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm, prepared sintered alloy tensile strength improves 253MPa, and hardness is suddenlyd change to 32HRC from 81-87HRA.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 is the E-E sectional drawing in Fig. 2.
Fig. 4 is the F-F sectional drawing in Fig. 2.
Fig. 5 is the G-G sectional view in Fig. 1.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Motor car engine powder metallurgy rotor shown in the drawings, comprises rotor body 1; Rotor body 1 is the discoid component based on powder metallurgy, comprises the center hole 1.2 at disk body 1.4, disk body center; Rotor body 1 end face is provided with axial blind hole 1.1, is provided with radial auxiliary hole 1.5, blind hole 1.1, center hole 1.2 is communicated with, forms the oil inlet passage from rotor body 1 end face to center hole 1.2 in rotor body 1; Along the circumferential direction be provided with the oil outlet 1.3 of several radial direction in rotor body 1, lead to rotor body 1 outer wall from center hole 1.2, in the present embodiment, oilhole 1.3 is distributed on the different cross section perpendicular to center hole 1.2 central axis.
Center hole 1.2 endoporus hole wall is provided with wear-resistant composite bed 4, in the present embodiment, and wear-resistant composite bed 4 is rare earth compound composite bed.
Embodiment prepared by rotor body 1 material of the present invention is as follows:
Embodiment 1:
By weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, all the other are iron powder, and each component sum is 100 ﹪; Corresponding technique is green density 7.5g/cm3, and sintering temperature 1200 ~ 1240 DEG C, without temper.
After testing, the yield strength of made sintered alloy is 575MPa, and tensile strength reaches 955MPa, and hardness is 98HRB, and impact toughness is 31.3J/cm
2.
Embodiment 2:
During embodiment 1 fills a prescription, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm.
After testing, the tensile strength of made sintered alloy reaches 1212MPa, and hardness is 31HRC.
Embodiment 3:
By weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, all the other are iron powder, and each component sum is 100 ﹪; Corresponding technique is green density 7.5g/cm
3, sintering temperature 1200-1240 DEG C, without temper.
After testing, the yield strength of made sintered alloy is 578MPa, tensile strength reaches 962MPa, hardness is 80-85HRA, impact toughness is 58J/cm
2.
Embodiment 4:
During embodiment 3 fills a prescription, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm.
After testing, the tensile strength of made sintered alloy reaches 1215MPa, and hardness is 32HRC.
Embodiment 5:
By weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, boron 2, all the other are iron powder, each component sum is 100 ﹪, makes through batch mixing, compacting, sintering, heating, forge hot, postprocessing working procedures step.
After testing, the yield strength of made sintered alloy is 577MPa, tensile strength reaches 961MPa, hardness is 81-87HRA, impact toughness is 58J/cm
2, reach 2 years working life.
Claims (9)
1. a motor car engine powder metallurgy rotor, comprises rotor body (1); Described rotor body (1) is the discoid component based on powder metallurgy, comprises the center hole (1.2) at disk body (1.4), disk body center; It is characterized in that: described rotor body (1) end face is provided with axial blind hole (1.1), radial auxiliary hole (1.5) is provided with in rotor body (1), blind hole (1.1), center hole (1.2) are communicated with, form the oil inlet passage from rotor body (1) end face to center hole (1.2); Along the circumferential direction be provided with the oil outlet (1.3) of several radial direction in described rotor body (1), lead to rotor body (1) outer wall from center hole (1.2).
2. motor car engine powder metallurgy rotor according to claim 1, is characterized in that: described oilhole (1.3) is distributed on the different cross section perpendicular to center hole (1.2) central axis.
3. motor car engine powder metallurgy rotor according to claim 1 and 2, is characterized in that: described center hole (1.2) endoporus hole wall is provided with wear-resistant composite bed (4).
4. motor car engine powder metallurgy rotor according to claim 3, is characterized in that: described wear-resistant composite bed (4) are rare earth compound composite bed.
5. the manufacture method of the motor car engine powder metallurgy rotor that one of claim 1 ~ 2 is described, it is characterized in that: described motor car engine powder metallurgy rotor formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, all the other are iron powder, and each component sum is 100 ﹪; Corresponding technique is green density 7.5g/cm
3, sintering temperature 1200 ~ 1240 DEG C, without temper, its yield strength is 575MPa, and tensile strength reaches 955MPa, and hardness is 98HRB, and impact toughness is 31.3J/cm
2.
6. the manufacture method of the motor car engine powder metallurgy rotor that one of claim 1 ~ 2 is described, it is characterized in that: described motor car engine powder metallurgy rotor formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, all the other are iron powder, and each component sum is 100 ﹪; Corresponding technique is green density 7.5g/cm
3, sintering temperature 1200-1240 DEG C, without temper, its yield strength is 578MPa, tensile strength reaches 962MPa, hardness is 80-85HRA, impact toughness is 58J/cm
2.
7. the manufacture method of the motor car engine powder metallurgy rotor that one of claim 1 ~ 2 is described, it is characterized in that: described motor car engine powder metallurgy rotor formula by weight, nickel powder 1.75, molybdenum powder 0.5, copper powder 1.5, chromium powder 1.7, manganese powder 1.0, plumbago 0.8, cerium dioxide 0.2, zine stearate 0.05 ﹪, molybdenum disulfide 0.5 ﹪, rare-earth elements La 0.6%, boron 2, all the other are iron powder, each component sum is 100 ﹪, makes through batch mixing, compacting, sintering, heating, forge hot, postprocessing working procedures step.
8. the manufacture method of motor car engine powder metallurgy rotor according to claim 5, is characterized in that: in described formula, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm.
9. the manufacture method of motor car engine powder metallurgy rotor according to claim 6, is characterized in that: in described formula, chromium and part iron reach part by weight by interpolation containing the subparticle Cr-Fe alloy powder that Mean particle diameter is 4.65 μm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893640A (en) * | 2018-07-30 | 2018-11-27 | 中南大学 | A kind of high temperature resistant antifriction material and its preparation method and application |
| CN117469023A (en) * | 2023-12-28 | 2024-01-30 | 陕西众科源泰动力科技有限公司 | Coated triangular rotor piston and rotor engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070114870A1 (en) * | 2005-11-23 | 2007-05-24 | Daewood Electronic Corporation | Induction motor capable of utilizing magnetic fluxes of end-turns of a stator to increase torque of a rotor |
| CN102476264A (en) * | 2010-11-29 | 2012-05-30 | 泰州市科诚汽车零配件有限公司 | Technology for manufacturing stationary cam and movable disk cam component of transmission box of crop harvester |
| JP2012215086A (en) * | 2011-03-31 | 2012-11-08 | Mitsubishi Heavy Ind Ltd | Oil supply pump device of compressor |
| CN203730564U (en) * | 2014-01-23 | 2014-07-23 | 杭州振兴工业泵制造有限公司 | High-speed rotor bearing for turbine compressor |
| CN104184233A (en) * | 2014-08-23 | 2014-12-03 | 江阴市创佳电器有限公司 | Silicon steel sheet for high-performance wind power generator rotor |
| CN104863656A (en) * | 2015-06-09 | 2015-08-26 | 吕元之 | Variable valve high-density powder metallurgy VVT rotor and manufacturing method thereof |
| CN205089372U (en) * | 2015-10-19 | 2016-03-16 | 泰州市科诚汽车零配件有限公司 | Automobile engine powder metallurgy rotor |
-
2015
- 2015-10-19 CN CN201510671219.9A patent/CN105257399B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070114870A1 (en) * | 2005-11-23 | 2007-05-24 | Daewood Electronic Corporation | Induction motor capable of utilizing magnetic fluxes of end-turns of a stator to increase torque of a rotor |
| CN102476264A (en) * | 2010-11-29 | 2012-05-30 | 泰州市科诚汽车零配件有限公司 | Technology for manufacturing stationary cam and movable disk cam component of transmission box of crop harvester |
| JP2012215086A (en) * | 2011-03-31 | 2012-11-08 | Mitsubishi Heavy Ind Ltd | Oil supply pump device of compressor |
| CN203730564U (en) * | 2014-01-23 | 2014-07-23 | 杭州振兴工业泵制造有限公司 | High-speed rotor bearing for turbine compressor |
| CN104184233A (en) * | 2014-08-23 | 2014-12-03 | 江阴市创佳电器有限公司 | Silicon steel sheet for high-performance wind power generator rotor |
| CN104863656A (en) * | 2015-06-09 | 2015-08-26 | 吕元之 | Variable valve high-density powder metallurgy VVT rotor and manufacturing method thereof |
| CN205089372U (en) * | 2015-10-19 | 2016-03-16 | 泰州市科诚汽车零配件有限公司 | Automobile engine powder metallurgy rotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893640A (en) * | 2018-07-30 | 2018-11-27 | 中南大学 | A kind of high temperature resistant antifriction material and its preparation method and application |
| CN117469023A (en) * | 2023-12-28 | 2024-01-30 | 陕西众科源泰动力科技有限公司 | Coated triangular rotor piston and rotor engine |
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| CN105257399B (en) | 2017-11-14 |
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