
对淮安SKF轴承6201-ZN进行中心偏移与热处理涨形
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不合格的轴承套圈会影响轴承的运行,容易损坏轴的内容物。如何识别和纠正使用中的不合格环?Unqualifiedbearingringswillaffecttheoperationofbearingsandeasilydamagethecontentsoftheshaft.Howtoidentifyandcorrectunqualifiedringsinuse?1.中.心变换法1.CentroidTransformMethod首先,准确测量淮安SKF轴承每个缺.陷(非对称型)的尺寸,计算出***小磨损部分(磨损产品尺寸误差)。然后,应使磨损缺.陷偏离中.心部位(增加磨损缺.陷)。***大偏差为M/2,即.陷处磨损相对增加,主点处磨削。Firstly,thedimensionofeachdefectandpit(asymmetrictype)ofHuaianSKFbearingismeasuredaccurately,andthe***allwearpartof***(dimensionerrorofwearproduct)iscalculated.Then,theweardefectandsinkshoulddeviatefromthecenterpart(increasetheweardefectandsink).Thelargedeviationof***isM/2,i.e.thewearatthenotchincreasesrelativelyandthegrindingatthemainpoint.中.心偏磨是在保证零件硬度和渗碳层次性的前提下进行的。总偏移量不能一次磨完。它通常分为几个磨削周期,即通过反复的偏置磨削-测量-调整-偏置磨削过程。在去除缺.陷后,椭圆可以从零开始修正,也可以通过常规磨削淮安SKF轴承来修正。该方法效率低,对操作人员的技术水平要求较高。但在单机生产中,该方法具有较高的抢救成功率,不会耽误生产进度。经过多年的实践和验证,它发挥了突出的作用。Centraleccentricweariscarriedoutonthepremiseofensuringthehardnessandcarburizinghierarchyofparts.Thetotaloffsetcannotbewornoutatonetime.Itisusuallydividedintoseveralgrindingcycles,thatis,throughrepeatedbiasgrinding-Measurement-adjustment-biasgrindingprocess.Aftereliminatingthedefect,theellipsecanbecorrectedfromscratchorbyconventionalgrindingHuaianSKFbearing.Thismethodisinefficientandrequireshightechnicallevelofoperators.Butinthesinglemachineproduction,thismethodhasahighrescuesuccessrate,andwillnotdelaytheproductionprogress.Afteryearsofpracticeandverification,ithasplayedaprominentrole.2.热处理及溶胀法2.Heattreatmentandswellingmethod进口轴承钢的淬火结构由淬火马氏体、少量不溶性二次碳化物和约12~14个百分比的残余奥氏体组成。淬火马氏体和残余奥氏体是由于排列不稳定造成的。回火过程中,钢的体积随马氏体细化而减小,随淮安SKF轴承残余奥氏体细化而增大。Thequenchingstructureofimportedbearingsteelc***istsofquenchedmartensite,a***allamountofinsolublesecondarycarbideandresidualausteniteofabout12to14percent.Quenchedmartensiteandretainedaustenitearecausedbyunstablealignment.Duringtempering,thevolumeofsteeldecreaseswiththerefinementofmartensiteandincreaseswiththerefinementofretainedausteniteinHuaianSKFbearing.该方法对奥氏体含量较高的重、重零件,特别是进口调心滚子轴承具有明显的效果。在实际生产中,针对不同规格、尺寸和厚度的零件,开发了不同的回火工艺。在保证硬度和变形的前提下,应充分改变排列方式,使其产生较大的溶胀。因此,为了节省浪费,磨损就增加了。Thismethodhas***iouseffectonhe***yandhe***ypartswithhighaustenitecontent,especiallyimportedself-aligningrollerbearings.Inactualproduction,differenttemperingprocessesaredevelopedforpartsofdifferentspecificati***,sizesandthicknesses.Onthepremiseofguaranteeinghardnessanddeformation,thearrangementmodeshouldbechangedsufficientlytoproducelargerswelling.Therefore,inordertos***ewaste,wearandtearincreases.化学堆栈Chemicalstack进口轴承部件使用规模超过计划标准的,可采用化学储存进行抢救。化学堆积的原理是通过各种化学原料之间的化学反应使淮安SKF轴承零件表面均匀地形成一定厚度的金属镀层。额外回火确保金属层的硬度和机械性能与原始零件相同。化学堆积只能在不改变零件形状的情况下增加零件的尺寸。因此,化学物质的积累是一种有.效的补救大部分。现在单侧堆积的***大厚度可以达到0.1mm。Iftheusescaleofimportedbearingpartsexceedstheplannedstandard,chemicalstoragecanbeusedforrescue.TheprincipleofchemicalstackingistomakethesurfaceofHuaianSKFbearingpartsuniformlyformacertainthicknessofmetalcoatingbychemicalreactionbetweenvariouschemicalrawmaterials.Additionaltemperingensuresthatthehardnessandmechanicalpropertiesofthemetallayerarethesameasthoseoftheoriginalparts.Chemicalstackingcanonlyincreasethesizeofpartswithoutchangingtheirshape.Therefore,theaccumulationofchemicalsubstancesisaneffectiveremedyformostofthem.Atpresent,thethicknessof***depositedunilaterallycanreach0.1mm.文章来自:淮安SKF轴承www.wh-Articlefrom:HuaianSKFBearingwww.wh-文章来自:淮安INA轴承a-Articlefrom:HuaianINABearinga-文章来自:淮安NSK轴承Articlefrom:HuaianNSKBearing***:524085168电话:0510-81207777手机:13311666672/13395185757)