CN105149593A - Petrol pump motor oil bearing manufacturing method based on powder metallurgy - Google Patents
Petrol pump motor oil bearing manufacturing method based on powder metallurgy Download PDFInfo
- Publication number
- CN105149593A CN105149593A CN201510351615.3A CN201510351615A CN105149593A CN 105149593 A CN105149593 A CN 105149593A CN 201510351615 A CN201510351615 A CN 201510351615A CN 105149593 A CN105149593 A CN 105149593A
- Authority
- CN
- China
- Prior art keywords
- powder
- pump motor
- oiliness bearing
- petrol pump
- manufacture method
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a petrol pump motor oil bearing manufacturing method based on powder metallurgy. The method comprises the steps of powder mixing, low-temperature diffusion, press molding, sintering, finishing and surface beating, and oil-impregnated treatment. In the powder mixing process, 70%-85% of Sn powder, 5%-10% of composite graphite powder and the balance copper powder are mixed by weight. In the low-temperature diffusion process, evenly mixed powder is subjected to low-temperature diffusion in a diffusion furnace under the protection of nitrogen. In the press molding process, powder subjected to low-temperature diffusion is placed in a die for press molding and pressed into a pressed blank. In the sintering process, the pressed blank is sintered into an alloy sintered body in the N and H reducing atmosphere. In the finishing and surface beating process, the alloy sintered body is pressed and shaped with a molding die. In the oil-impregnated treatment process, the pressed part is placed in a vacuum oil impregnation machine for oil-impregnated treatment. According to the method, the copper-coated graphite powder is added to serve as the solid lubricant to enable Cu-Sn alloy to be combined more easily at a low temperature; furthermore, graphite is evenly mixed and not prone to segregation.
Description
Technical field
The present invention relates to bearing mnanufacture field, particularly relate to the manufacture method that a kind of powder metallurgy is applied to petrol pump motor oiliness bearing.
Background technology
Various different gasoline injection system is have employed in Modern Car, their district of fuel feeding side is also different, but must be equipped with electronic combustion (vapour) oil pump, its main task is that the enough oil of the combustion (vapour) with certain pressure of (vapour) oil system is fired in supply.Because petrol pump is contained in fuel tank, soak in the oil, and gasoline is a kind of organic solution, can dissolve the material that wet goods water cannot dissolve.Powder metallurgy oil-impregnated bearing is due to pump-absorb action, forms boundary lubrication by bearing containing immersion oil sucking-off.How to solve both conflicts, normally add in copper powder at present graphite and leaching full-bodied lubricating oil, but the method manufacture bearing due to the amount of graphite more, material is segregation very easily, and graphite is separated out in the oil, and gasoline dissolve in bearing containing immersion oil, pollute oil pump, reduce the petrol pump life-span.To ensure the 5000 hours service life of petrol pump motor, also need the lubricating system of solution motor and gasoline can not dissolve the kind containing immersion oil of bearing; In material, why not graphite is as being precipitated.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The object of this invention is to provide the manufacture method that a kind of powder metallurgy is applied to petrol pump motor oiliness bearing, solve the kind containing immersion oil that the lubricating system of motor in background technology and gasoline can not dissolve bearing; In material, why not graphite as the problem such as being precipitated.
The invention provides the manufacture method that a kind of powder metallurgy is applied to petrol pump motor oiliness bearing, comprise step:
S101: powder mixes: mixed by the material powder of following percentage by weight, Sn element powders 70 ~ 85%, composite stone ink powder 5 ~ 10%, all the other are copper powders;
S102: low temperature diffusion: the powder after mixing is carried out low temperature diffusion by the protection of nitrogen in diffusion furnace;
S103: compressing: the powder after low temperature diffusion is placed in mould compressing, is pressed into pressed compact;
S104: sintering processes: by above-mentioned pressed compact in N and H reducing atmosphere, sintering heating was through 0.5 ~ 1.5 hour gradually, be warmed up to 300 ~ 500 DEG C, main sintering is heated to 720 ~ 820 DEG C again, constant temperature 0.5 ~ 1.5 hour, then through 0.5 ~ 1.5 hour, cooling down, to normal temperature, sintered alloy sintered compact into gradually;
S105: finishing and face are beaten: described alloy sintered compact pressing mold is carried out compacting integer;
S106: immersion oil process: above-mentioned rolled-up stock is placed in vacuum immersion oil machine and carries out immersion oil process.
The invention provides the manufacture method that a kind of powder metallurgy is applied to petrol pump motor oiliness bearing, adopt and add Cu-cladding Al Rod powder as kollag, be more prone under making Cu-Sn alloy be distributed in low-temperature condition combine, and graphite mixes, not easily segregation.Through the process of mixing low temp diffusion technique, alloy is more evenly distributed, and sintered body surface is in spongy fine through holes, and porosity communication rate reaches more than 95%.During this bearing rotary, lubricating oil is sucking-off fast automatically, forms oil film, improves lubricant effect, sinters in addition, around Cu particle, define lubricating layer, rotating shaft frictional resistance when the running of bearing bore diameter surface is reduced, reduces mechanical slip noise; Improve wearability in bearing operation, service life was more than 5000 hours.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the manufacture method flow chart that in the present invention, powder metallurgy is applied to petrol pump motor oiliness bearing;
Fig. 2 is sintered body temperature changing curve diagram in sintering processes in the present invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawing or embodiment and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
Provide the flow chart that powder metallurgy in the present invention is applied to the manufacture method of petrol pump motor oiliness bearing as shown in Figure 1; Fig. 2 is sintered body temperature changing curve diagram in sintering processes.
Embodiment one:
S101: powder mixes: mixed by the material powder of following percentage by weight, Sn element powders 70%, composite stone ink powder 6%, all the other are copper powders;
S102: low temperature diffusion: the powder after mixing is carried out low temperature diffusion by the protection of nitrogen in diffusion furnace;
S103: compressing: the powder after low temperature diffusion is placed in mould compressing, is pressed into pressed compact;
S104: sintering processes: by above-mentioned pressed compact in N and H reducing atmosphere, sintering heating was through 0.5 ~ 1.5 hour gradually, be warmed up to 300 ~ 500 DEG C, main sintering is heated to 720 ~ 820 DEG C again, constant temperature 0.5 ~ 1.5 hour, then through 0.5 ~ 1.5 hour, cooling down, to normal temperature, sintered alloy sintered compact into gradually;
S105: finishing and face are beaten: described alloy sintered compact pressing mold is carried out compacting integer;
S106: immersion oil process: above-mentioned rolled-up stock is placed in vacuum immersion oil machine and carries out immersion oil process.
Composite stone ink powder is wherein Cu-cladding Al Rod powder; Adopt and add Cu-cladding Al Rod powder as kollag, be more prone under making Cu-Sn alloy be distributed in low-temperature condition combine, and graphite mixes, not easily segregation.
Optionally, in described step S102, low temperature diffusion temperature is: 200 ~ 400 DEG C, and the time is 25 ~ 35min.
Optionally, in described step S103, pressing pressure is 150 ~ 350MPa, and pressed density is 5.9 ~ 6.2g/cm3.
Optionally, described in described step S106, immersion oil temperature is: 80 ~ 100 DEG C.
Optionally, the oil content of described oiliness bearing is 19 ~ 24%.
Embodiment two:
S101: powder mixes: mixed by the material powder of following percentage by weight, Sn element powders 80%, composite stone ink powder 8%, all the other are copper powders;
S102: low temperature diffusion: the powder after mixing is carried out low temperature diffusion by the protection of nitrogen in diffusion furnace;
S103: compressing: the powder after low temperature diffusion is placed in mould compressing, is pressed into pressed compact;
S104: sintering processes: by above-mentioned pressed compact in N and H reducing atmosphere, sintering heating was through 0.5 ~ 1.5 hour gradually, be warmed up to 300 ~ 500 DEG C, main sintering is heated to 720 ~ 820 DEG C again, constant temperature 0.5 ~ 1.5 hour, then through 0.5 ~ 1.5 hour, cooling down, to normal temperature, sintered alloy sintered compact into gradually;
S105: finishing and face are beaten: described alloy sintered compact pressing mold is carried out compacting integer;
S106: immersion oil process: above-mentioned rolled-up stock is placed in vacuum immersion oil machine and carries out immersion oil process.
Composite stone ink powder is wherein Cu-cladding Al Rod powder; Adopt and add Cu-cladding Al Rod powder as kollag, be more prone under making Cu-Sn alloy be distributed in low-temperature condition combine, and graphite mixes, not easily segregation.
Optionally, in described step S102, low temperature diffusion temperature is: 200 ~ 400 DEG C, and the time is 25 ~ 35min.
Optionally, in described step S103, pressing pressure is 150 ~ 350MPa, and pressed density is 5.9 ~ 6.2g/cm3.
Optionally, described in described step S106, immersion oil temperature is: 80 ~ 100 DEG C.
Optionally, the oil content of described oiliness bearing is 19 ~ 24%.
Embodiment three:
S101: powder mixes: mixed by the material powder of following percentage by weight, Sn element powders 85%, composite stone ink powder 10%, all the other are copper powders;
S102: low temperature diffusion: the powder after mixing is carried out low temperature diffusion by the protection of nitrogen in diffusion furnace;
S103: compressing: the powder after low temperature diffusion is placed in mould compressing, is pressed into pressed compact;
S104: sintering processes: by above-mentioned pressed compact in N and H reducing atmosphere, sintering heating was through 0.5 ~ 1.5 hour gradually, be warmed up to 300 ~ 500 DEG C, main sintering is heated to 720 ~ 820 DEG C again, constant temperature 0.5 ~ 1.5 hour, then through 0.5 ~ 1.5 hour, cooling down, to normal temperature, sintered alloy sintered compact into gradually;
S105: finishing and face are beaten: described alloy sintered compact pressing mold is carried out compacting integer;
S106: immersion oil process: above-mentioned rolled-up stock is placed in vacuum immersion oil machine and carries out immersion oil process.
Composite stone ink powder is wherein Cu-cladding Al Rod powder; Adopt and add Cu-cladding Al Rod powder as kollag, be more prone under making Cu-Sn alloy be distributed in low-temperature condition combine, and graphite mixes, not easily segregation.
Optionally, in described step S102, low temperature diffusion temperature is: 200 ~ 400 DEG C, and the time is 25 ~ 35min.
Optionally, in described step S103, pressing pressure is 150 ~ 350MPa, and pressed density is 5.9 ~ 6.2g/cm3.
Optionally, described in described step S106, immersion oil temperature is: 80 ~ 100 DEG C.
Optionally, the oil content of described oiliness bearing is 19 ~ 24%.
Implementation result:
Table 1 is the measurement result that in the present invention, powder metallurgy is applied to petrol pump motor oiliness bearing oil content, radial crushing strength, apparent hardness.
Table 1 powder metallurgy is applied to petrol pump motor oiliness bearing oil content, radial crushing strength, apparent hardness
Petrol pump motor oiliness bearing is applied to powder metallurgy of the present invention below and raw material oiliness bearing does abrasion test at material wear-resistant testing machine (YQ-001), test oiliness bearing specification: φ 6X φ 12X8 is YQ-117 perfluoro polyether oil containing immersion oil.Test parameters: PV value is set as 100MPa.m.min
-1, axle running speed is 4000r/min, operates continuously.Get identical bearing sample at random under identical operating conditions, test respectively, detect ruuning situation, test result is in table 2.
Table 2 abrasion test
Table 2 as can be seen from above-mentioned two kinds of oiliness bearings (material) are tested: the bearing material standard that old material adopts is: MPIF35 standard CT G-1004, this bearing occurred stuck through life test motor at 1500 hours, can not meet the requirement of petrol pump design of electrical motor; Material that new material adopts is that the present invention is applied to petrol pump motor oil containing bearing material, this bearing test 1500 hours, motor is normal, detects bearing wear extent and is about 2 μm, oilconsumption is about 1.5%, calculates that this bearing can reach more than 5000 hours service life thus.
Powder metallurgy in the present invention is applied in the manufacture method of petrol pump motor oiliness bearing and passes through to add Cu-cladding Al Rod powder as kollag, be more prone to combine, and graphite mixes, not easily segregation under making Cu-Sn alloy be distributed in low-temperature condition.By the contrast of above-mentioned new and old material, can find to adopt the new material in the present invention can meet the demand being applied to petrol pump motor bearings material, and during this bearing rotary, lubricating oil is sucking-off fast automatically, forms oil film, improves lubricant effect, sinter in addition, around Cu particle, define lubricating layer, rotating shaft frictional resistance when the running of bearing bore diameter surface is reduced, reduces mechanical slip noise; Improve wearability in bearing operation, service life was more than 5000 hours.
State in each embodiment on the invention, the sequence number of embodiment and/or sequencing are only convenient to describe, and do not represent the quality of embodiment.The description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
Should emphasize, term " comprises/comprises " existence referring to feature, key element, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, key element, step or assembly.
Although last it is noted that described the present invention and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and converting.And scope of the present invention is not limited only to the specific embodiment of process, equipment, means, method and step described by description.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (9)
1. powder metallurgy is applied to a manufacture method for petrol pump motor oiliness bearing, it is characterized in that, comprises step:
S101: powder mixes: mixed by the material powder of following percentage by weight, Sn element powders 70 ~ 85%, composite stone ink powder 5 ~ 10%, all the other are copper powders;
S102: low temperature diffusion: the powder after mixing is carried out low temperature diffusion by the protection of nitrogen in diffusion furnace;
S103: compressing: the powder after low temperature diffusion is placed in mould compressing, is pressed into pressed compact;
S104: sintering processes: by above-mentioned pressed compact in N and H reducing atmosphere, sintering heating was through 0.5 ~ 1.5 hour gradually, be warmed up to 300 ~ 500 DEG C, main sintering is heated to 720 ~ 820 DEG C again, constant temperature 0.5 ~ 1.5 hour, then through 0.5 ~ 1.5 hour, cooling down, to normal temperature, sintered alloy sintered compact into gradually;
S105: finishing and face are beaten: described alloy sintered compact pressing mold is carried out compacting integer and form rolled-up stock;
S106: immersion oil process: above-mentioned rolled-up stock is placed in vacuum immersion oil machine and carries out immersion oil process.
2. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, described composite stone ink powder is Cu-cladding Al Rod powder.
3. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, in described oiliness bearing, the percentage by weight of each element is: Sn element powders 70%, composite stone ink powder 6%, and surplus is copper.
4. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, in described oiliness bearing, the percentage by weight of each element is: Sn element powders 80%, composite stone ink powder 8%, and surplus is copper.
5. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, in described oiliness bearing, the percentage by weight of each element is: Sn element powders 85%, composite stone ink powder 10%, and surplus is copper.
6. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, in described step S102, low temperature diffusion temperature is: 200 ~ 400 DEG C, and the time is 25 ~ 35min.
7. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, in described step S103, pressing pressure is 150 ~ 350MPa, and pressed density is 5.9 ~ 6.2g/cm3.
8. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, described in described step S106, immersion oil temperature is: 80 ~ 100 DEG C.
9. powder metallurgy according to claim 1 is applied to the manufacture method of petrol pump motor oiliness bearing, it is characterized in that, the oil content of described oiliness bearing is 19 ~ 24%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351615.3A CN105149593A (en) | 2015-06-23 | 2015-06-23 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
| PCT/CN2015/092717 WO2016206260A1 (en) | 2015-06-23 | 2015-10-23 | Method for manufacturing oil-retaining bearing for petrol pump motor in powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351615.3A CN105149593A (en) | 2015-06-23 | 2015-06-23 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105149593A true CN105149593A (en) | 2015-12-16 |
Family
ID=54790797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351615.3A Pending CN105149593A (en) | 2015-06-23 | 2015-06-23 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105149593A (en) |
| WO (1) | WO2016206260A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107175334A (en) * | 2017-05-19 | 2017-09-19 | 海安县鹰球粉末冶金有限公司 | A kind of manufacture method of high-strength powder metallurgical brass base shaft coupling |
| CN107321993A (en) * | 2017-06-27 | 2017-11-07 | 浙江丰立机电有限公司 | A kind of powder metallurgical gear preparation method for being used to share bicycle |
| CN108526460A (en) * | 2018-05-21 | 2018-09-14 | 海安县鹰球粉末冶金有限公司 | A kind of manufacturing method applied to automobile lamp motor oiliness bearing |
| CN111790912A (en) * | 2020-07-10 | 2020-10-20 | 海安县鹰球粉末冶金有限公司 | Powder metallurgy high-strength copper-nickel alloy oil-containing bearing and preparation method thereof |
| WO2020244278A1 (en) * | 2019-06-06 | 2020-12-10 | 徐州圣邦机械有限公司 | Novel crescent for internal gear pump and preparation method therefor |
| CN113305290A (en) * | 2021-05-27 | 2021-08-27 | 海安县鹰球粉末冶金有限公司 | Manufacturing method of aluminum-based powder metallurgy high-precision oil-retaining bearing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111957954A (en) * | 2019-05-20 | 2020-11-20 | 海安县鹰球粉末冶金有限公司 | Manufacturing process of powder metallurgy oil-retaining bearing |
| CN114653938A (en) * | 2021-10-12 | 2022-06-24 | 嘉善精与勤五金有限公司 | Novel powder metallurgy manufacturing process |
| CN114932224A (en) * | 2022-05-31 | 2022-08-23 | 东风商用车有限公司 | Engine camshaft idler gear wheel hub and forming method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426022A (en) * | 1987-07-20 | 1989-01-27 | Isamu Kikuchi | Manufacture for sintered bearing |
| CN1281955A (en) * | 2000-09-05 | 2001-01-31 | 海安县鹰球集团有限公司 | Powder metallurgy rare-earth iron bronze alloy oil-impregnated bearing and its manufacturing method |
| CN1288114A (en) * | 2000-09-05 | 2001-03-21 | 海安县鹰球集团有限公司 | Powder metallurgy, rare-earth, iron and brass alloy oil-impregnated bearing and its mfg. method |
| CN101775521A (en) * | 2010-03-16 | 2010-07-14 | 海安县鹰球集团有限公司 | Ultrahigh rotating speed oil bearing for powder metallurgy and manufacturing method thereof |
| CN101845568A (en) * | 2010-05-12 | 2010-09-29 | 海安县鹰球集团有限公司 | Oil impregnated bearing of powder metallurgy with ultra-long service life and manufacturing method thereof |
| CN101935775A (en) * | 2009-06-29 | 2011-01-05 | 上海飞轮有色冶炼厂 | Rare-earth-containing bearing alloy and preparation method thereof |
| CN102168202A (en) * | 2011-04-14 | 2011-08-31 | 刘利利 | Metal-matrix self-lubricating composite bearing material and preparation method thereof |
| CN102303118A (en) * | 2011-06-16 | 2012-01-04 | 嘉善洪达复合轴承有限公司 | Bimetallic bearing with graphite wrapped by copper powder |
| CN104963950A (en) * | 2015-06-23 | 2015-10-07 | 江苏鹰球集团有限公司 | Powder metallurgy oil bearing applied to petrol pump motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100674562B1 (en) * | 2005-07-08 | 2007-01-25 | 두산인프라코어 주식회사 | Method for manufacturing sintered bearing |
| CN102588441B (en) * | 2012-03-09 | 2014-06-11 | 重庆合达科技有限公司 | High low temperature resistant oil-retaining bearing made of powder metallurgy material and manufacturing method thereof |
-
2015
- 2015-06-23 CN CN201510351615.3A patent/CN105149593A/en active Pending
- 2015-10-23 WO PCT/CN2015/092717 patent/WO2016206260A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426022A (en) * | 1987-07-20 | 1989-01-27 | Isamu Kikuchi | Manufacture for sintered bearing |
| CN1281955A (en) * | 2000-09-05 | 2001-01-31 | 海安县鹰球集团有限公司 | Powder metallurgy rare-earth iron bronze alloy oil-impregnated bearing and its manufacturing method |
| CN1288114A (en) * | 2000-09-05 | 2001-03-21 | 海安县鹰球集团有限公司 | Powder metallurgy, rare-earth, iron and brass alloy oil-impregnated bearing and its mfg. method |
| CN101935775A (en) * | 2009-06-29 | 2011-01-05 | 上海飞轮有色冶炼厂 | Rare-earth-containing bearing alloy and preparation method thereof |
| CN101775521A (en) * | 2010-03-16 | 2010-07-14 | 海安县鹰球集团有限公司 | Ultrahigh rotating speed oil bearing for powder metallurgy and manufacturing method thereof |
| CN101845568A (en) * | 2010-05-12 | 2010-09-29 | 海安县鹰球集团有限公司 | Oil impregnated bearing of powder metallurgy with ultra-long service life and manufacturing method thereof |
| CN102168202A (en) * | 2011-04-14 | 2011-08-31 | 刘利利 | Metal-matrix self-lubricating composite bearing material and preparation method thereof |
| CN102303118A (en) * | 2011-06-16 | 2012-01-04 | 嘉善洪达复合轴承有限公司 | Bimetallic bearing with graphite wrapped by copper powder |
| CN104963950A (en) * | 2015-06-23 | 2015-10-07 | 江苏鹰球集团有限公司 | Powder metallurgy oil bearing applied to petrol pump motor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107175334A (en) * | 2017-05-19 | 2017-09-19 | 海安县鹰球粉末冶金有限公司 | A kind of manufacture method of high-strength powder metallurgical brass base shaft coupling |
| WO2018209832A1 (en) * | 2017-05-19 | 2018-11-22 | 海安县鹰球粉末冶金有限公司 | Method for manufacturing high-strength brass-based coupling by means of powder metallurgy |
| CN107321993A (en) * | 2017-06-27 | 2017-11-07 | 浙江丰立机电有限公司 | A kind of powder metallurgical gear preparation method for being used to share bicycle |
| CN108526460A (en) * | 2018-05-21 | 2018-09-14 | 海安县鹰球粉末冶金有限公司 | A kind of manufacturing method applied to automobile lamp motor oiliness bearing |
| WO2019223077A1 (en) * | 2018-05-21 | 2019-11-28 | 海安县鹰球粉末冶金有限公司 | Method for manufacturing oil-retaining bearing applied to automobile lamp motor |
| WO2020244278A1 (en) * | 2019-06-06 | 2020-12-10 | 徐州圣邦机械有限公司 | Novel crescent for internal gear pump and preparation method therefor |
| CN111790912A (en) * | 2020-07-10 | 2020-10-20 | 海安县鹰球粉末冶金有限公司 | Powder metallurgy high-strength copper-nickel alloy oil-containing bearing and preparation method thereof |
| CN113305290A (en) * | 2021-05-27 | 2021-08-27 | 海安县鹰球粉末冶金有限公司 | Manufacturing method of aluminum-based powder metallurgy high-precision oil-retaining bearing |
| CN113305290B (en) * | 2021-05-27 | 2023-01-24 | 海安县鹰球粉末冶金有限公司 | Manufacturing method of aluminum-based powder metallurgy high-precision oil-retaining bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016206260A1 (en) | 2016-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105149593A (en) | Petrol pump motor oil bearing manufacturing method based on powder metallurgy | |
| JP5247329B2 (en) | Iron-based sintered bearing and manufacturing method thereof | |
| CN101775521A (en) | Ultrahigh rotating speed oil bearing for powder metallurgy and manufacturing method thereof | |
| JP5675090B2 (en) | Sintered oil-impregnated bearing and manufacturing method thereof | |
| CN107252888B (en) | Sintered bearing | |
| CN105236983A (en) | Method for preparing high-speed train pantograph carbon sliding plate through new process | |
| CN104879386A (en) | Powder metallurgy ultralow-noise and long-service-life oil-impregnated bearing | |
| CN101845568A (en) | Oil impregnated bearing of powder metallurgy with ultra-long service life and manufacturing method thereof | |
| CN102913555A (en) | Powder metallurgical composite oil-containing bearing and manufacturing method thereof | |
| CN104889405B (en) | A kind of powder metallurgy Langaloy bearing material | |
| CN112795188B (en) | Metal polymer composite oil-retaining bearing retainer material and preparation method thereof | |
| JP6424983B2 (en) | Iron-based sintered oil-impregnated bearing | |
| CN104963950A (en) | Powder metallurgy oil bearing applied to petrol pump motor | |
| CN105695872B (en) | A kind of method that oiliness bearing is manufactured for the prediffusion combining powder and its manufacture method of powder metallurgy and using the powder | |
| CN108526460A (en) | A kind of manufacturing method applied to automobile lamp motor oiliness bearing | |
| CN104889409A (en) | Manufacturing method of powder metallurgy ultra-low-noise long-service-life oil-retaining bearing | |
| CN104889404A (en) | Ceramimetallurgical high-nickel alloy bearing material | |
| CN109234559B (en) | Porous self-lubricating Fe2B-Fe metal ceramic composite material and preparation method thereof | |
| CN107855517A (en) | A kind of oiliness bearing powdered metallurgical material and preparation method thereof | |
| CN214092742U (en) | Vacuum oil-seepage wear-resistant lubricating bearing | |
| CN109890539B (en) | Sintered bearing and method for manufacturing same | |
| CN111664182A (en) | Powder metallurgy self-lubricating oil-retaining bearing and preparation method thereof | |
| JP7021312B2 (en) | Sintered bearing | |
| JP6759389B2 (en) | Sintered bearing | |
| JP6487957B2 (en) | Sintered bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |
|
| RJ01 | Rejection of invention patent application after publication |