CN104963950A - Powder metallurgy oil bearing applied to petrol pump motor - Google Patents
Powder metallurgy oil bearing applied to petrol pump motor Download PDFInfo
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- CN104963950A CN104963950A CN201510349804.7A CN201510349804A CN104963950A CN 104963950 A CN104963950 A CN 104963950A CN 201510349804 A CN201510349804 A CN 201510349804A CN 104963950 A CN104963950 A CN 104963950A
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Abstract
The invention provides a powder metallurgy oil bearing applied to a petrol pump motor. The powder metallurgy oil bearing comprises, by mass, 70-85% of Sn element powder, 5-10% of composite graphite powder, and the balance of copper. According to the powder metallurgy oil bearing applied to the petrol pump motor, the copper-coated graphite powder is added to serve as a solid lubricant, so that Cu-Sn alloys are distributed in a low-temperature state and combined more easily; moreover, graphite is mixed uniformly and is not prone to segregation. When the bearing rotates, lubricating oil is sucked automatically and fast to form the oil film, the lubricating effect is improved, lubricating layers are formed around Cu particles by means of sintering, friction resistance is reduced when a rotating shaft operates on the inner diameter surface of the bearing, and mechanical sliding noise is reduced; in the bearing operation process, abrasion resistance is improved, and the service life is over 5000 hours.
Description
Technical field
The present invention relates to bearing mnanufacture field, particularly relate to a kind of powder metallurgy and be applied to petrol pump motor oil-impregnated bearing.
Background technique
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 lubricant 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 working life of petrol pump motor, also need the lubrication 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 a kind of powder metallurgy and be applied to petrol pump motor oil-impregnated bearing, solve the kind containing immersion oil that the lubrication system of motor in background technique and gasoline can not dissolve bearing; In material, why not graphite as the problem such as being precipitated.
The invention provides a kind of powder metallurgy and be applied to petrol pump motor oil-impregnated bearing, comprise each component of following mass fraction: Sn element powders 70 ~ 85%, composite stone ink powder 5 ~ 10%, surplus is copper.
The invention provides a kind of powder metallurgy and be applied to petrol pump motor oil-impregnated bearing, adopt and add Cu-cladding Al Rod powder as solid lubricant, 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 sintering body surface is in spongy fine through holes, and porosity communication rate reaches more than 95%.During this bearing rotary, lubricant oil is sucking-off fast automatically, forms oil film, improves lubrication effect, sinters in addition, around Cu particle, define lubricating layer, running shaft frictional resistance when the running of bearing bore diameter surface is reduced, reduces mechanical slip noise; Improve wear resistance in bearing operation, working life was more than 5000 hours.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological 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 oil-impregnated bearing;
Fig. 2 is sintering body temperature changing curve diagram in sintering in the present invention.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological 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 mode of execution and feature can combine with the element shown in one or more other accompanying drawing or mode of execution 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, belongs to the scope of protection of the invention.
Embodiment one:
The invention provides a kind of powder metallurgy and be applied to petrol pump motor oil-impregnated bearing, comprise each component of following mass fraction: Sn element powders 70 ~ 85%, composite stone ink powder 5 ~ 10%, surplus is copper.
Wherein, described composite stone ink powder is Cu-cladding Al Rod powder; Adopt and add Cu-cladding Al Rod powder as solid lubricant, be more prone under making Cu-Sn alloy be distributed in low-temperature condition combine, and graphite mixes, not easily segregation.
Embodiment two:
The weight percentage that powder metallurgy is applied to each element in petrol pump motor oil-impregnated bearing is: Sn element powders 80%, composite stone ink powder 8%, and surplus is copper; Described composite stone ink powder is Cu-cladding Al Rod powder.
Embodiment three:
The weight percentage that powder metallurgy is applied to each element in petrol pump motor oil-impregnated bearing is: Sn element powders 85%, composite stone ink powder 10%, and surplus is copper; Described composite stone ink powder is Cu-cladding Al Rod powder.
Implementation result:
Table 1 is the measurement result that in the present invention, powder metallurgy is applied to petrol pump motor oil-impregnated bearing oil content, radial crushing strength, apparent hardness.
Table 1 powder metallurgy is applied to petrol pump motor oil-impregnated bearing oil content, radial crushing strength, apparent hardness
Petrol pump motor oil-impregnated bearing is applied to powder metallurgy of the present invention below and raw material oil-impregnated bearing does wear test at material wear-resistant testing machine (YQ-001), test oil-impregnated 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 runnability, test result is in table 2.
Table 2 wear test
Table 2 as can be seen from above-mentioned two kinds of oil-impregnated bearings (material) are tested: the bearing material standard that old material adopts is: MPIF 35 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, oil consumption is about 1.5%, calculates that this bearing can reach more than 5000 hours working life thus.
As shown in Figure 1, the powder metallurgy in the present invention is applied to petrol pump motor oil-impregnated bearing and is prepared by the step in following flow chart, comprises step:
S101: powder mixes: mixed by the material powder of following weight percentage, 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 furnaces;
S103: compressing: the powder after low temperature diffusion is placed in mould compressing, is pressed into pressed compact;
S104: sintering: 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 solid lubricant, 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 oil-impregnated bearing is 19 ~ 24%.
Powder metallurgy in the present invention is applied in the manufacture method of petrol pump motor oil-impregnated bearing and passes through to add Cu-cladding Al Rod powder as solid lubricant, 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, lubricant oil is sucking-off fast automatically, forms oil film, improves lubrication effect, sinter in addition, around Cu particle, define lubricating layer, running shaft frictional resistance when the running of bearing bore diameter surface is reduced, reduces mechanical slip noise; Improve wear resistance in bearing operation, working 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 specification.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 (5)
1. powder metallurgy is applied to a petrol pump motor oil-impregnated bearing, it is characterized in that, comprises each component of following mass fraction: Sn element powders 70 ~ 85%, composite stone ink powder 5 ~ 10%, and surplus is copper.
2. powder metallurgy according to claim 1 is applied to petrol pump motor oil-impregnated 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 petrol pump motor oil-impregnated bearing, it is characterized in that, in described oil-impregnated bearing, the weight percentage 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 petrol pump motor oil-impregnated bearing, it is characterized in that, in described oil-impregnated bearing, the weight percentage 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 petrol pump motor oil-impregnated bearing, it is characterized in that, in described oil-impregnated bearing, the weight percentage of each element is: Sn element powders 85%, composite stone ink powder 10%, and surplus is copper.
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| CN201510349804.7A CN104963950A (en) | 2015-06-23 | 2015-06-23 | Powder metallurgy oil bearing applied to petrol pump motor |
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| CN201510349804.7A CN104963950A (en) | 2015-06-23 | 2015-06-23 | Powder metallurgy oil bearing applied to petrol pump motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149593A (en) * | 2015-06-23 | 2015-12-16 | 江苏鹰球集团有限公司 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367269A (en) * | 2001-10-25 | 2002-09-04 | 中国科学院兰州化学物理研究所 | Metal self-lubricating composite material |
| CN101576122A (en) * | 2009-06-08 | 2009-11-11 | 扬州保来得科技实业有限公司 | Powder metallurgy oil-free lubricating bearing and method for preparing same |
| US20100050375A1 (en) * | 2007-04-26 | 2010-03-04 | Masanori Ueyama | Copper-alloy-based sliding material, and copper-alloy-based sliding member |
| 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 |
| CN104070168A (en) * | 2014-06-30 | 2014-10-01 | 张家港振江粉末冶金制品有限公司 | High-wear-resistance rolling oil-retaining bearing for chain and preparation method for same |
-
2015
- 2015-06-23 CN CN201510349804.7A patent/CN104963950A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367269A (en) * | 2001-10-25 | 2002-09-04 | 中国科学院兰州化学物理研究所 | Metal self-lubricating composite material |
| US20100050375A1 (en) * | 2007-04-26 | 2010-03-04 | Masanori Ueyama | Copper-alloy-based sliding material, and copper-alloy-based sliding member |
| CN101576122A (en) * | 2009-06-08 | 2009-11-11 | 扬州保来得科技实业有限公司 | Powder metallurgy oil-free lubricating bearing and method for preparing same |
| 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 |
| CN104070168A (en) * | 2014-06-30 | 2014-10-01 | 张家港振江粉末冶金制品有限公司 | High-wear-resistance rolling oil-retaining bearing for chain and preparation method for same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149593A (en) * | 2015-06-23 | 2015-12-16 | 江苏鹰球集团有限公司 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
| 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 |
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Application publication date: 20151007 |