CN103551580B - High-strength micro oiliness bearing and production method thereof - Google Patents
High-strength micro oiliness bearing and production method thereof Download PDFInfo
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- CN103551580B CN103551580B CN201310533340.6A CN201310533340A CN103551580B CN 103551580 B CN103551580 B CN 103551580B CN 201310533340 A CN201310533340 A CN 201310533340A CN 103551580 B CN103551580 B CN 103551580B
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Abstract
The invention discloses a kind of high-strength micro oiliness bearing and production method thereof, it is characterized in that: by following component and weight portion formulated, BRO-AG1L3-YY-150? 45.4-54.7, DFRCU-CSA-100? 23.3-31.6, HJT-CE-300? 16.1-31.3, zinc stearate 0.36, nickel bag molybdenum bisuphide 1.24, graphite 0.22, dispersion-strengtherning agent SD-8000? 0.14, zinc powder 0.32, glass putty 1.02, through shaping compacting after above-mentioned each component mixing, then form through sintering.Product of the present invention has superpower intensity, be out of shape little, shrink little, hardness is high, the product height made, endoporus uniformity are good, and can ensure that product is when 300 DEG C of plastic cement extruding parcel external diameters, hole size does not shrink, serviceability is also highly stable, can surmount the instructions for use of client and the requirement of current international market completely.
Description
Technical field
The present invention relates to technical field of bearings, especially a kind of low noise, long-life, high-strength micro oiliness bearing and production method thereof.
Background technology
In recent years, along with economic development is advanced by leaps and bounds, cultural undertakings are maked rapid progress, people require also more and more higher to electronic product, particularly also corresponding harsher to the quality requirement of the oiliness bearing supporting to electronic product, be mainly manifested in electronic product equipment application, as industries such as precise electronic motor, mobile phone vibrating motor, massagers, require that oiliness bearing coefficient of friction is little, stable working, rotating speed high (20000r.p.m), particularly vibrating noise require little, long service life, General Requirements operates more than 48h continuously.In order to meet the requirement of people to copper base oil containing bearing high-performance and high-quality, people have carried out a large amount of research work on material selection, although the agglomerated material of copper base oil containing bearing is still Cu-Sn alloy, but add expensive rare element, the porous miniature bearing being used for audio-visual equipment as Hitachi, Ltd's exploitation just adds magnesium, thus reduction coefficient of friction, improve bearing service life.The and for example wear resistant copper-based oiliness bearing of one recently developed of the U.S., it is 1-23% containing cobalt amount, and adopts the kollags such as high synthesis of carbon/molybdenum disulfide and nano combined grain.Although the said goods Performance and quality has had raising, price is high, is difficult to promote.The graphite that the copper tin 10 that the factory formula of current internal copper base oil containing bearing is generally 97.2% adds 1% adds 0.8% zinc stearate, mix compressing after, after 650 DEG C ~ 720 DEG C ~ 720 DEG C temperature sintering, Ф 0.6*, Ф 1.6*, the intensity of 1.25 type products such as grade is 4.0 ~ 5.0kgf, and shrink inconsistent 1.6(-0.01 ~+0.02), cause external diameter not circle, therefore during finishing, compacted products easily occurs that endoporus uniformity is poor, height fluctuation is large, because insufficient strength is high, because injection moulding high temperature easily causes shrinkage cavity phenomenon during dress micro machine, and make really to carry out this oiliness bearing and feel very difficult, above-mentioned defect causes due to following reason:
1, raw material batch fluctuation is large, and granularmetric composition collocation is unreasonable, is heated uneven.2, formula shrinks large and inconsistent, and powder is not filled, powder mix uneven .3 lubricating oil selection and allocate improper.4, most importantly composition of raw materials is unreasonable, and production technology not science causes.The oiliness bearing production technology manufacturing condition of the high request of production high-quality simultaneously also plays an important role to the stability of product quality and high-performance aspect.
Summary of the invention
The object of the invention is to overcome prior art deficiency, provide that a kind of price is low, performance good, the life-span is long, noise is low, the miniature oiliness bearing that intensity is high and production method thereof.Object of the present invention is realized by following technical proposals; The present invention by following component and weight portion formulated:
BRO
－AG1L3
－YY－15045.4
－54.7
DFRCU
－CSA
－10023.3
－31.6
HJT
－CE
－30016.1
－31.3
Zinc stearate 0.36 nickel bag molybdenum bisuphide 1.24 graphite 0.22
Dispersion-strengtherning agent SD
-80000.14 zinc powder 0.32
Glass putty 1.02, through shaping compacting after above-mentioned each component mixing, then forms through sintering.
The production of product of the present invention follows these steps to carry out:
1, by above-mentioned each component first through 5-10 minute hand mix, import in mixed powder machine, mixing 55-65 minute, leaves standstill for subsequent use after 24 hours;
2, carry out shaping compacting, the above-mentioned powder mixed is encased in be provided with in mould molding equipment dry powder double sided pressure machine compressing;
3, sinter: the blank suppressed is placed in sintering furnace and sinters, sintering temperature is 780 DEG C ~ 855 DEG C ~ 845 DEG C three sections, sintering 2.5h;
4, finishing: by the product sintered, pours in vibrating disc, puts on material, revises good micro-power elastic clip, after die debugging is good, suppresses product;
5, clean: by compacting through examining qualified product, putting in supersonic wave cleaning machine, cleaning with agent for carbon hydrogen detergent;
6, immersion oil: dried by the product cleaned up, then puts in vavuum pump, is built by lid, vacuum is opened, and after spending 5-10 minute, is drawn onto in vavuum pump by the Northeast oil 946P of the import being heated to 85 DEG C, after immersion oil 55-65 minute, product oil content reaches about 22.5%;
7, pack, put in storage.
The present invention is by selecting BRO
-aG1L3
-yY-150 (diffusion CuSn10), ensure the former grain weight stability of product and the good characteristic of flow velocity, the apparent density of CuSn10 is generally 2.80g/cc, design density is 6.7g/cc, because apparent density is about 2.80g/cc, the green strength of pressed compact can better be improved when suppressing semifinished product, epigranular and flow velocity makes well the fuel-displaced all even grain weight fluctuation of bearing little under identical solid density, in the present invention's formula, being added with the non-shrinking powder DFRCU of heat treatment
-cSA
-100 (part prealloy powder) and graphite etc. some with copper tin 10 not chemically reactive material and stop the dispersion-strengtherning agent of its heat treatment deformation (it belongs to δ phase enhanced particles), by undissolved trickle δ phase uniform particle is distributed in metallic matrix the method making metal strengthening.The δ phase particle of dispersion-strengtherning is the insoluble or indissoluble particle added from outside, even if be at high temperature also not dissolved in matrix, therefore can obtain higher elevated temperature strength, and after δ sintering, product is substantially indeformable, also adds HJT
-cE
-300(iron powder), there is good powder-stuck ability, the heat resistance of material can be improved, the heat resistance of material when high temperature is increased, thus improve the wearability of material under high speed conditions, CuSn10 sintering temperature improves 855 DEG C from 720 DEG C, and the sintering hole of other constituent element can be made to reach more preferably state, and sintering external diameter fluctuation range is 1.6(+0 ~+0.004); Under the condition of HTHP, make that product strength can reach (15.55-17.95kgf) superhigh intensity, stability (height fluctuation in 0.004mm, external diameter shrinking tolerance 0.004mm in), service life (use 1000h more than existing product) improve a lot.Because product of the present invention has superpower intensity, be out of shape little, shrink little, hardness is high, the product height made, endoporus uniformity are good, and can ensure that product is when 300 DEG C of plastic cement extruding parcel external diameters, hole size does not shrink, serviceability is also highly stable, can surmount the instructions for use of client and the requirement of current international market completely.
Detailed description of the invention
Embodiment 1, product of the present invention by following raw materials according component and weight portion formulated:
BRO
-aG1L3
-yY-15054.7, DFRCU
-cSA
-10025.9, HJT
-cE
-30016.1, separately add zinc stearate 0.36, nickel bag molybdenum bisuphide 1.24, graphite 0.22, dispersion-strengtherning agent SD
-80000.14, zinc powder 0.32, glass putty 1.02, through shaping compacting after above-mentioned each component mixing, then forms through sintering.
BRO
-aG1L3
-yY-150 is copper tin spread powder, is that copper 90% and tin 10% develop through special procedure, the present embodiment select by Beijing You Yan metal dust Co., Ltd produce, granularity is
-150 orders.
DFRCU-CSA-100 is copper tin prealloy powder, is copper 90% and tin 10% completely alloyed powder, and produced by Shanghai Ju Lian metal dust Co., Ltd, granularity is+100 orders.
HJT-CE-300 iron powder is the iron powder by making the special applicable miniature oiliness bearing of requirement, and produced by the conspicuous Glasco skill Co., Ltd in Shanghai, granularity is-300 orders.
Above-mentioned copper tin premixed bronze refers to the powder of complete alloying copper 90% and the atomization of tin 10% melt made.
Production of the present invention follows these steps to carry out:
1, import mix first for above-mentioned each component in powder machine through 10 minutes hand mix, mix 65 minutes, leave standstill for subsequent use after 24 hours;
2, carry out shaping compacting, the above-mentioned powder mixed is encased in be provided with in mould molding equipment dry powder double sided pressure machine compressing;
3, sinter: the blank suppressed is placed in sintering furnace and sinters, sintering temperature is 780 DEG C ~ 855 DEG C ~ 845 DEG C three sections, average every segment distance 570mm, sinter with the guipure speed of 300r/min, the time is 2.5h;
4, finishing: by the product sintered, pours in vibrating disc, puts on material, revises good micro-power elastic clip, after die debugging is good, suppresses product again;
5, clean: by compacting through examining qualified product, putting in supersonic wave cleaning machine, cleaning with agent for carbon hydrogen detergent;
6, immersion oil: dried by the product cleaned up, then put in vavuum pump, built by lid, vacuum is opened, and after spending 5 minutes, will be heated to the import of 85 DEG C
'snortheast oil 946P is drawn onto in vavuum pump, and immersion oil is after 55 minutes, and product oil content reaches about 22.5%;
7, pack, put in storage.
Embodiment 2, product of the present invention by following raw materials according component and percentage by weight formulated:
BRO
-aG1L3
-yY-150 (diffusion CuSn10) 50.1, DFRCU
-cSA
-100 (part prealloy powder) 31.6, HJT
-cE
-300(iron powder) 18.3, separately add zinc stearate 0.36, nickel bag molybdenum bisuphide 1.24, graphite 0.22, dispersion-strengtherning agent SD
-80000.14, zinc powder 0.32, glass putty 1.02, through shaping compacting after above-mentioned each component mixing, then forms through sintering.Production follows these steps to carry out:
1, import mix first for above-mentioned each component in powder machine through 5 minutes hand mix, mix 55 minutes, leave standstill for subsequent use after 24 hours;
2, carry out shaping compacting, the above-mentioned powder mixed is encased in former dry powder double sided pressure machine compressing;
3, sinter: the blank suppressed is placed in sintering furnace and sinters, sintering temperature is 780 DEG C ~ 855 DEG C ~ 845 DEG C three sections, average every segment distance 570mm, sinter with the guipure speed of 300r/min, the time is 2.5h;
4, finishing: by the product sintered, pours in vibrating disc, puts on material, revises good micro-power elastic clip, after die debugging is good, suppresses product again;
5, clean: by compacting through examining qualified product, putting in supersonic wave cleaning machine, cleaning with agent for carbon hydrogen detergent;
6, immersion oil: dried by the product cleaned up, then puts in vavuum pump, is built by lid, vacuum is opened, and after spending 10 minutes, is drawn onto in vavuum pump by the Northeast oil 946P of the import being heated to 85 DEG C, immersion oil is after 65 minutes, and product oil content reaches about 22.5%;
7, pack, put in storage.
Embodiment 3, product of the present invention by following raw materials according component and percentage by weight formulated:
BRO
-aG1L3
-yY-150 (diffusion CuSn10) 45.4, DFRCU
-cSA
-100 (part prealloy powder) 23.3, HJT
-cE
-300 (iron powders) 31.3, separately add zinc stearate 0.36, nickel bag molybdenum bisuphide 1.24, graphite 0.22, dispersion-strengtherning agent SD
-80000.14, zinc powder 0.32, glass putty 1.02, through shaping compacting after above-mentioned each component mixing, then forms through sintering.Through shaping compacting after above-mentioned each component mixing, then form through sintering.Production method is with embodiment 1.
Claims (2)
1. a high-strength micro oiliness bearing, is characterized in that: by following component and weight portion formulated
BRO－AG1L3－YY－15045.4－54.7
DFRCU－CSA－10023.3－31.6
HJT－CE－30016.1－31.3
Zinc stearate 0.36 nickel bag molybdenum bisuphide 1.24 graphite 0.22
Dispersion-strengtherning agent SD-80000.14 zinc powder 0.32
Glass putty 1.02, through shaping compacting after above-mentioned each component mixing, then forms through sintering.
2. a production method for high-strength micro oiliness bearing, is characterized in that: follow these steps to carry out
(1) by each component described in claim 1 first through 5-10 minute hand mix, import in mixed powder machine, mixing 55-65 minute, leaves standstill for subsequent use after 24 hours;
(2) carry out shaping compacting, the above-mentioned powder mixed is encased in be provided with in mould molding equipment dry powder double sided pressure machine compressing;
(3) sinter: the blank suppressed is placed in sintering furnace and sinters, sintering temperature is 780 DEG C ~ 855 DEG C ~ 845 DEG C three sections, sintering 2.5h;
(4) finishing: by the product sintered, pours in vibrating disc, puts on material, revises good micro-power elastic clip, after die debugging is good, suppresses product;
(5) clean: by compacting through examining qualified product, putting in supersonic wave cleaning machine, cleaning with agent for carbon hydrogen detergent;
(6) immersion oil: dried by the product cleaned up, then puts in vavuum pump, is built by lid, vacuum is opened, and after spending 5-10 minute, is drawn onto in vavuum pump by the Northeast oil 946P of the import being heated to 85 DEG C, after immersion oil 55-65 minute, product oil content reaches about 22.5%;
(7) pack, put in storage
.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533340.6A CN103551580B (en) | 2013-11-04 | 2013-11-04 | High-strength micro oiliness bearing and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533340.6A CN103551580B (en) | 2013-11-04 | 2013-11-04 | High-strength micro oiliness bearing and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103551580A CN103551580A (en) | 2014-02-05 |
| CN103551580B true CN103551580B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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|---|---|---|---|---|
| CN104439250B (en) * | 2014-12-31 | 2017-02-22 | 扬州立德粉末冶金股份有限公司 | Method for manufacturing dispersion strengthening copper-based oil bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06330214A (en) * | 1993-05-21 | 1994-11-29 | Sumitomo Electric Ind Ltd | Aluminum power alloy having high hardness and wear resistnce and its production |
| CN101109411A (en) * | 2007-08-24 | 2008-01-23 | 包敢锋 | Powder metallurgy Fe-Cu-Sn oil-retaining bearing and manufacturing technique thereof |
| CN101982261A (en) * | 2010-09-27 | 2011-03-02 | 四川省南充鑫磊冶金科技发展有限公司 | Manufacturing method of oil bearing used at temperature over 250 DEG C |
| CN102062149A (en) * | 2010-10-18 | 2011-05-18 | 浙江长盛滑动轴承有限公司 | High-performance iron-based powder metallurgy oil-containing self-lubricating bearing and production process thereof |
| CN102788090A (en) * | 2012-08-27 | 2012-11-21 | 四川省宏锦泰粉末冶金有限公司 | Thin-wall long-barrel-shaped bearing containing oil and production method thereof |
-
2013
- 2013-11-04 CN CN201310533340.6A patent/CN103551580B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06330214A (en) * | 1993-05-21 | 1994-11-29 | Sumitomo Electric Ind Ltd | Aluminum power alloy having high hardness and wear resistnce and its production |
| CN101109411A (en) * | 2007-08-24 | 2008-01-23 | 包敢锋 | Powder metallurgy Fe-Cu-Sn oil-retaining bearing and manufacturing technique thereof |
| CN101982261A (en) * | 2010-09-27 | 2011-03-02 | 四川省南充鑫磊冶金科技发展有限公司 | Manufacturing method of oil bearing used at temperature over 250 DEG C |
| CN102062149A (en) * | 2010-10-18 | 2011-05-18 | 浙江长盛滑动轴承有限公司 | High-performance iron-based powder metallurgy oil-containing self-lubricating bearing and production process thereof |
| CN102788090A (en) * | 2012-08-27 | 2012-11-21 | 四川省宏锦泰粉末冶金有限公司 | Thin-wall long-barrel-shaped bearing containing oil and production method thereof |
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Address after: 637000 Building 1, Airport Avenue, Gaoping District, Nanchong City, Sichuan Province Patentee after: Sichuan hongjintai Technology Co.,Ltd. Address before: 637100 Building 1, Airport Avenue, Gaoping District, Nanchong City, Sichuan Province Patentee before: SICHUAN HONGJINTAI POWDER METALLURGY Co.,Ltd. |
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