磷含量对青铜基含油轴承力学性能与摩擦性能的影响.pdf

磷含量对青铜基含油轴承力学性能与摩擦

性能的影响

摘要以青铜作为轴承基体，通过改变磷含量（0～1%，质量分数）和烧结温度，在一定转速和载荷下，测量轴承的摩擦系

数和磨损量，并测定了轴承的开环强度，研究了磷含量对青铜基含油轴承的摩擦性能和力学性能的影响，获得一定工作条件下

轴承配方和烧结工艺参数。结果表明：随着磷含量的增加，含油轴承的磨损量降低，力学性能提高，但磷含量过高时，轴承的

含油率降低并低于轴承最低标准；随着烧结温度的增加，试样力学性能提高，但摩擦因数不稳定。当磷质量分数为0.7%、烧结

温度为650℃时，含油轴承拥有良好的综合性能，开环强度和含油率分别为22MPa和13.52%，摩擦因数稳定，呈最佳烧结

状态。

关键词

青铜；含油轴承；磷含量；力学性能；摩擦性能

Effect

of

phosphorus

content

on

the

mechanical

and

friction

properties

of

oil-impregnated

bronze

bearings

ABSTRACT

Oil-impregnatedbronzebearingswiththedifferentphosphoruscontents(0~1%,massfraction)wereproducedatthe

differentsinteringtemperatures.TostudytheeffectofPcontentonthefrictionandmechanicalpropertiesofthebearings,thefriction

coefficientandwearlossatthecertainspeedandloadweremeasured,andtheopen-loopstrengthofbearingswasexamined.In

addition,theoptimizedbearingcontentandsinteringprocessparametersunderthecertainworkingconditionswereobtained.The

resultsshowthat,withtheincreaseofPcontent,thewearlossofthebearingsreduces,whilethemechanicalperformancesare

improved.However,whenthePcontentisexcessed,theoilcontentreduceswhichislowerthantheminimumstandard.Asthesintering

temperatureincreases,themechanicalpropertiesofthebearingsareimproved,butthefrictioncoefficientisunstable.Theopen-loop

strengthandoilcontentoftheoil-impregnatedbronzebearingsampleswith0.7%Pcontentbymassaftersinteringat650℃are

收稿日期：2021-10-12

第42卷第2期范心怡等:磷含量对青铜基含油轴承力学性能与摩擦性能的影响·201·

22MPaand13.52%,respectively,showingthegoodcomprehensiveperformanceasthestablefrictionfactorandthebestsintering

state.

KEY

WORDS

bronze;oil-impregnatedbearings;phosphoruscontent;mechanicalproperties;frictionproperties

烧结金属含油轴承是最早出现的粉末冶金机械表

1含油轴承化学成分（质量分数）

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