CN1305615C - Powder metallurgy manufacturing method of inside and outside rotor in oil pump - Google Patents
Powder metallurgy manufacturing method of inside and outside rotor in oil pump Download PDFInfo
- Publication number
- CN1305615C CN1305615C CNB2004100935833A CN200410093583A CN1305615C CN 1305615 C CN1305615 C CN 1305615C CN B2004100935833 A CNB2004100935833 A CN B2004100935833A CN 200410093583 A CN200410093583 A CN 200410093583A CN 1305615 C CN1305615 C CN 1305615C
- Authority
- CN
- China
- Prior art keywords
- oil pump
- powder metallurgy
- outer rotors
- metallurgy manufacturing
- powder
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000012188 paraffin wax Substances 0.000 claims abstract description 4
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 239000000314 lubricant Substances 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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Abstract
本发明关于汽车机油泵内外转子的粉末冶金制造方法，包括压制、烧结、整形、机加工等步骤，其中材料包括配方：镍1.57～1.93%+石墨粉0.16～0.24%+铜1.35～1.55%+钼0.45～0.55%+硫化锰≤0.5%+石蜡0.8～1.0%(润滑剂)，余量为铁粉，本发明的机油泵内外转子用于汽车机油泵中，加工时间短，成本低，机油泵内外转子具有较高的强度，冲击韧性好，硬度高，耐磨性好，切削加工性能好。
The present invention relates to the powder metallurgy manufacturing method of the inner and outer rotors of automobile oil pumps, including pressing, sintering, shaping, machining and other steps, wherein the materials include formula: nickel 1.57-1.93% + graphite powder 0.16-0.24% + copper 1.35-1.55%+ Molybdenum 0.45～0.55%+manganese sulfide≤0.5%+paraffin 0.8～1.0% (lubricant), the balance is iron powder, the inner and outer rotors of the oil pump of the present invention are used in automobile oil pumps, the processing time is short, the cost is low, and the machine The inner and outer rotors of the oil pump have high strength, good impact toughness, high hardness, good wear resistance and good cutting performance.
Description
Technical field
The present invention relates in particular to the powder metallurgy manufacture method of automobile engine oil pump inner and outer rotors about powder metallurgical technology.
Background technology
Inside and outside rotor in oil pump is used for automobile engine, this cover rotor tooth form complexity, and the dimension precision requirement height, according to pattern and use and matching requirements that the client provides, general turning technology can't satisfy.See also Fig. 1 and Fig. 2, the profile of tooth of existing internal rotor is point, and the top of its tooth is very narrow, and wearing and tearing easily cause engine failure in the use.So the invention provides a kind of method that adopts powder metallurgical technique to make inside and outside rotor in oil pump, the inside and outside rotor in oil pump that this method is produced has higher tooth portion intensity, long service life, and process time is short, and cost is low.
Summary of the invention
The object of the present invention is to provide a kind of powder metallurgy manufacture method of automobile engine oil pump inner and outer rotors.
The present invention realizes by following technical method: the powder metallurgy manufacture method of inside and outside rotor in oil pump comprises the steps:
1) suppression process: the part composition of raw materials is: nickel 1.57～1.93%+ graphite powder 0.16～0.24%+ copper 1.35～1.55%+ molybdenum 0.45～0.55%+ manganese sulfide≤0.5%+ paraffin 0.8～1.0%, and surplus is an iron powder; The density of material compacting of part raw material is reached 7.0g/cm
3More than;
2) sintering circuit: the pressed compact sintering is put in the high temperature guipure electric furnace, and sintering temperature is set to: preheat temperature＜650 ℃ ± 20 ℃, 750 ℃ ± 20 ℃ 〉, the three-stage sintering temperature is respectively＜and 1110 ℃ ± 10 ℃, 1120 ℃ ± 10 ℃, 1120 ℃ ± 10 ℃ 〉;
The guipure fltting speed is: 5 meters/hour;
Protective atmosphere: nitrogen (10～12Nm
3/ h) and cracked ammonium (1～2Nm
3/ h);
3) after shaping and machined obtain satisfactory inner and outer rotors.
The inside and outside rotor in oil pump that the present invention produced has higher intensity, and impact flexibility is good, the hardness height, and wearability is good, and machinability is good.
Description of drawings
Fig. 1 is existing lubricating oil pump inner rotor core schematic diagram.
Fig. 2 is the outer inner rotor core schematic diagram of existing lubricating oil pump.
Fig. 3 is a lubricating oil pump inner rotor core schematic diagram of the present invention.
Fig. 4 is a lubricating oil pump outer-rotor structure schematic diagram of the present invention.
Fig. 5 is an inside and outside rotor in oil pump combining structure schematic diagram of the present invention.
The specific embodiment
See also Fig. 3～5, rotor of engine oil pump of the present invention is compared with common rotor of engine oil pump, its tooth portion broad, rotate flexibly, stably on the basis, existing higher tooth portion intensity also has bigger discharge capacity.
The material prescription that the powder metallurgy manufacture method of inside and outside rotor in oil pump of the present invention is adopted: nickel 1.57～1.93%+ graphite powder 0.16～0.24%+ copper 1.35～1.55%+ molybdenum 0.45～0.55%+ manganese sulfide≤0.5%+ paraffin 0.8～1.0% (lubricant), surplus is an iron powder.The used material of inner and outer rotors is the same.
The inside and outside rotor in oil pump that this kind combination of materials is produced has higher intensity, and impact flexibility is good, the hardness height, and wearability is good, and machinability is good.
Following table for the proportioning of each composition in 5 specific embodiments of the present invention is:
The powder metallurgy manufacture method of inside and outside rotor in oil pump of the present invention comprises the steps:
1) suppression process: the density of the strict control of compacting part reaches 7.0g/cm
3More than, and strict control parts density is poor, otherwise easily causes the intensity of part or local strength on the low side;
2) sintering circuit: the pressed compact sintering is put in the high temperature guipure electric furnace, and sintering temperature is set to: preheat temperature＜650 ℃ ± 20 ℃, 750 ℃ ± 20 ℃ 〉, the three-stage sintering temperature is respectively＜and 1110 ℃ ± 10 ℃, 1120 ℃ ± 10 ℃, 1120 ℃ ± 10 ℃ 〉;
The guipure fltting speed is: 5 meters/hour;
Protective atmosphere: nitrogen (10～12Nm
3/ h) and cracked ammonium (1～2Nm
3/ h);
Sintered blank does not allow to produce oxidation, burning, carbon distribution and generation bubble;
3) trimming: shaping is in order to make part satisfy client's the dimensional requirement of using and assembling, so strict control accessory size, especially fitted position and use size during shaping;
4) machining processes: internal rotor mill processing two planes, the Vehicle Processing endoporus makes part satisfy user's matching requirements; Outer rotor mill processing two planes and cylindrical make outer rotor satisfy user's matching requirements.
The performance indications of inside and outside rotor in oil pump made according to the method for the present invention all can reach requirement after bench test, and owing to adopt powder metallurgical technique, cost is low, and process time is short.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100935833A CN1305615C (en) | 2004-12-24 | 2004-12-24 | Powder metallurgy manufacturing method of inside and outside rotor in oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100935833A CN1305615C (en) | 2004-12-24 | 2004-12-24 | Powder metallurgy manufacturing method of inside and outside rotor in oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631583A CN1631583A (en) | 2005-06-29 |
| CN1305615C true CN1305615C (en) | 2007-03-21 |
Family
ID=34847756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100935833A Expired - Lifetime CN1305615C (en) | 2004-12-24 | 2004-12-24 | Powder metallurgy manufacturing method of inside and outside rotor in oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1305615C (en) |
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|---|---|---|---|---|
| CN102000823A (en) * | 2010-10-15 | 2011-04-06 | 苏州莱特复合材料有限公司 | Process for manufacturing powder metallurgy pump shell |
| CN102748281B (en) * | 2012-06-15 | 2015-07-01 | 扬州保来得科技实业有限公司 | Oil pump rotor used for VVT technology and its preparation method |
| CN102909373A (en) * | 2012-09-15 | 2013-02-06 | 安徽省怀远县尚冠模具科技有限公司 | Method for preparing mould punching ejector rod |
| CN102953980A (en) * | 2012-11-22 | 2013-03-06 | 无锡惠山泵业有限公司 | Oil pump assembly |
| CN103831432B (en) * | 2012-11-27 | 2016-03-23 | 安徽省恒宇粉末冶金有限公司 | Boosting pump for car steering powder metallurgy inner and outer rotors formula and manufacture craft |
| CN103192071B (en) * | 2013-04-23 | 2015-03-04 | 南京浩德粉末冶金有限公司 | Powder metallurgical formulas for internal and external rotors of hydraulic slippage pump and manufacturing method of internal and external rotors of hydraulic slippage pump |
| CN103264158B (en) * | 2013-05-27 | 2015-08-19 | 无锡市恒特力金属制品有限公司 | Powder metallurgy material for rotor of oil pump of gearbox |
| CN103537669A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder-metallurgy automobile booster pump stator and manufacturing method thereof |
| CN103537666A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy oil pump rotor and manufacturing method thereof |
| CN103537670A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy automobile power steering pump stator and preparing method of powder metallurgy automobile power steering pump stator |
| CN103537667A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy engine oil delivery pump rotor and manufacturing method thereof |
| CN103537675A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy automotive oil pump internal and external rotors and manufacturing method thereof |
| CN104001923A (en) * | 2014-06-19 | 2014-08-27 | 山西东睦华晟粉末冶金有限公司 | Powder metallurgy manufacturing method for pressure plate |
| CN107225364A (en) * | 2016-03-24 | 2017-10-03 | 扬州保来得科技实业有限公司 | A kind of preparation method of automatic gearbox of vehicles clutch engagement signal wheel |
| CN106111977B (en) * | 2016-07-29 | 2018-05-22 | 合肥波林新材料股份有限公司 | A kind of rotor of engine oil pump manufacturing method |
| CN107761003A (en) * | 2017-09-20 | 2018-03-06 | 上海汽车粉末冶金有限公司 | The powder metallurgy sintered method of bearing cap |
| CN108637259B (en) * | 2018-04-12 | 2020-04-14 | 金华市宇辰粉末冶金有限公司 | Powder metallurgy saw blade upper and lower pressing plates and production method thereof |
| CN108547767A (en) * | 2018-05-28 | 2018-09-18 | 山西东睦华晟粉末冶金有限公司 | A kind of combined type cycloid rotor and preparation method thereof |
| CN110760759A (en) * | 2019-12-03 | 2020-02-07 | 德钜（厦门）特种合金制品有限公司 | Powder metallurgy sintering process for sliding block |
| CN112059169B (en) * | 2020-08-11 | 2023-02-21 | 山东鲁银新材料科技有限公司 | Production method of iron-based premixed powder for engine rotor |
| CN112059190A (en) * | 2020-09-02 | 2020-12-11 | 苏州萨伯工业设计有限公司 | Manufacturing method of oil replenishing pump rotor based on powder metallurgy |
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|---|---|---|---|---|
| JPH02153046A (en) * | 1988-12-06 | 1990-06-12 | Kawasaki Steel Corp | High strength sintered alloy steel |
| US5892164A (en) * | 1997-03-19 | 1999-04-06 | Air Products And Chemicals, Inc. | Carbon steel powders and method of manufacturing powder metal components therefrom |
| US6203753B1 (en) * | 1996-05-13 | 2001-03-20 | The Presmet Corporation | Method for preparing high performance ferrous materials |
| CN1509830A (en) * | 2002-12-12 | 2004-07-07 | �ӳɹ� | Method of manufacturing powder metal parts |
-
2004
- 2004-12-24 CN CNB2004100935833A patent/CN1305615C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02153046A (en) * | 1988-12-06 | 1990-06-12 | Kawasaki Steel Corp | High strength sintered alloy steel |
| US6203753B1 (en) * | 1996-05-13 | 2001-03-20 | The Presmet Corporation | Method for preparing high performance ferrous materials |
| US5892164A (en) * | 1997-03-19 | 1999-04-06 | Air Products And Chemicals, Inc. | Carbon steel powders and method of manufacturing powder metal components therefrom |
| CN1509830A (en) * | 2002-12-12 | 2004-07-07 | �ӳɹ� | Method of manufacturing powder metal parts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1631583A (en) | 2005-06-29 |
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| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI AUTO POWDER METALLURGY CO.,LTD Free format text: FORMER OWNER: SHANGHAI AUTOMOBILE CO. LTD. Effective date: 20090710 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20090710 Address after: Shanghai City Wenchuan Road No. 5475 room 467 Patentee after: SHANGHAI AUTOMOBILE POWDER METALLURGY Co.,Ltd. Address before: Shanghai City, Pudong Zhangjiang hi tech park, Songtao Road No. 563 building A Patentee before: Shanghai Automotive Co.,Ltd. |
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Granted publication date: 20070321 |