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硬度换算表-绝对最全面

2019-11-18 6页 doc 28KB 45阅读

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硬度换算表-绝对最全面国家标准硬度转换表里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD3008359633.932231431546.33028459834.232531631846.63048560034.532831932046.93068560234.833032232347.2308...
硬度换算表-绝对最全面
国家标准硬度转换里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD3008359633.932231431546.33028459834.232531631846.63048560034.532831932046.93068560234.833032232347.23088660435.133332432547.53108760635.433632732847.83128760835.733833033148.23148861035.934133233348.53168961236.234433533648.83189061436.534633833949.13209061636.834934034149.43229161837.135234334449.73249262037.435534634650.13269362237.635734934950.43289462437.936035135250.73309462638.2363354355513329562838.536635735751.33349663038.736936036051.73369763239372363363523389863439.337536636652.33409963639.637736936952.634210063839.838037137152.934410164040.138337437453.334610164240.438637737753.634810264440.738938038053.935059.610364640.939238338354.235260.310464841.239538638654.63546110565041.539838938954.9里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD35661.710665241.740139239255.235862.41076544240439539555.636063.110865642.340739839855.836263.810965842.641140140156.236464.511066042.841440440456.536665.111166243.141740740756.936865.811266443.442041041057.237066.411466643.642341341357.53726711566843.942641741757.937467.711667044.142942042058.237668.311767244.443342342358.537868.911867444.743642642658.938069.511967644.943942942959.238270.112067845.244243243259.538470.612168045.544643543559.938671.212368245.744943943960.238871.81246844645244244260.539072.312568646.245644544560.939272.912668846.545944844861.239473.412769046.846345145161.6396741296924746645545561.939874.513069447.346945845862.24007513114269647.547346146162.640275.513314469847.847646546562.9404761341457004848046846863.340676.513514770248.348347147163.64087713614970448.64874744746441077.513815070648.849147847864.34127813915270849.149448148164.641478.414115371049.349848548565里氏洛氏洛氏维氏布氏布氏肖氏里氏洛氏洛氏维氏布氏布氏肖氏HLDHRCHRBHVHB[1]HB[2]HSDHLDHRCHRBHVHB[1]HB[2]HSD41678.914215571249.650148848865.341879.314315671449.850549149165.742079.814514015771650.15094954956642280.214614115971850.351349849866.442480.714814316072050.651650250266.742681.114914416272250.852050550567.142881.515114516372451.152450850867.443081.915214716572651.352851251267.843282.415414816672851.653251551568.243482.815515016873051.853551951968.543683.215715116973252.153952252268.943883.615815317173452.354352652669.24408416015417273652.654752952969.644284.416115617473852.855153353369.944484.816315717574053.155553653670.344685.116415917674253.355954054070.744885.516616017874453.65635435437145085.916816217974653.856854754771.445286.316916418174854.157255155171.845486.617116518275054.357655455472.14568717316718475254.558055855872.545887.417416818575454.858456156172.946087.717617018726.47565558956556573.246288.117817218826.775855.359356956973.646488.51791731902776055.55975725727446688.818117519127.376255.760257657674.346889.218317719327.67645660658058074.747089.518517819427.976656.261058358375.147289.918618019628.276856.561558758775.547490.318818219728.577056.761959159175.8里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD47690.619018419828.877256.962459459476.24789119218520029.177457.262859859876.648091.319418720229.477657.46336026027748291.719518920329.777857.663860560577.448492.11971912053078057.964260960977.748692.419919220630.378258.164761361378.148892.820119420830.678458.365261761778.549093.120319620930.978658.665762062078.949293.520519821131.278858.866262462479.349493.920720021231.57905966662862879.749694.320920221431.779259.267163263280.149894.62112042153279459.567663563580.55009521320521732.279659.768163963980.950295.421520721932.579859.968664364381.250495.821720922032.880060.169164764781.650696.221921122233.180260.46976516518250896.622121322433.380460.670282.451019.89722321522533.680660.870782.851220.297.422521722733.98086171283.251420.697.922721922934.281061.271883.75162198.322922123034.481261.472384.151821.398.723122323234.781461.772884.552021.799.22332252343581661.973484.95222299.623522723535.381862.173985.352422.423722923735.682062.374585.752622.823923123935.882262.575086.152823.124123424136.182462.775686.553023.524423624236.482662.97628753223.824623824436.782863.176887.453424.12482402463783063.377387.8里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD里氏HLD洛氏HRC洛氏HRB维氏HV布氏HB[1]布氏HB[2]肖氏HSD53624.525024224837.383263.577988.253824.825224425037.683463.778588.654025.225524625237.983663.979189.154225.525724925438.183864.179789.554425.825925125638.484064.380389.954626.226125325838.784264.580990.454826.52642552593984464.781690.855026.826625826139.384664.982291.255227.126826226339.684865.182891.755427.527026226539.985065.383592.155627.827326526840.285265.484192.655828.127526727040.585465.68489356028.427826927240.885665.885493.556228.828027227441.18586686193.956429.128227427641.486066.286794.456629.428527627841.786266.387494.856829.72872792804286466.588195.35703029028128242.386666.788895.757230.329228328542.686866.889596.257430.629428628742.98706790296.757630.929728828943.287267.290997.157831.229929129243.587467.391697.658031.530229329443.887667.592398.158231.830429629644.187867.693198.658432.130729829944.488067.89389958632.430930130144.78826894699.558832.73123033044588468.19535903331530630845.488668.296159233.331730831045.788868.496859433.63203113134689068.5976硬度换算公式:.肖氏硬度(HS)=勃式硬度(BHN)/10+12.肖式硬度(HS)=洛式硬度(HRC)+15.勃式硬度(BHN)=洛克式硬度(HV).洛式硬度(HRC)=勃式硬度(BHN)/10-3洛氏硬度HRC和布氏硬度HB等硬度对照区别和换算硬度是衡量材料软硬程度的一个性能指标。硬度试验的方法较多,原理也不相同,测得的硬度值和含义也不完全一样。最普通的是静负荷压入法硬度试验,即布氏硬度(HB)、洛氏硬度(HRA,HRB,HRC)、维氏硬度(HV),橡胶塑料邵氏硬度(HA,HD)等硬度其值表示材料表面抵抗坚硬物体压入的能力。最流行的里氏硬度(HL)、肖氏硬度(HS)则属于回跳法硬度试验,其值代表金属弹性变形功的大小。因此,硬度不是一个单纯的物理量,而是反映材料的弹性、塑性、强度和韧性等的一种综合性能指标。1、钢材的硬度:金属硬度(Hardness)的代号为H。按硬度试验方法的不同,・常规表示有布氏(HB)、洛氏(HRC)、维氏(HV)、里氏(HL)硬度等,其中以HB及HRC较为常用。HB应用范围较广,HRC适用于表面高硬度材料,如热处理硬度等。两者区别在于硬度计之测头不同,布氏硬度计之测头为钢球,而洛氏硬度计之测头为金刚石。HV-适用于显微镜。维氏硬度(HV)以120kg以内的载荷和顶角为136°的金刚石方形锥压入器压入材料表面,用材料压痕凹坑的表面积除以载荷值,即为维氏硬度值(HV)。HL手提式硬度计,测量方便,利用冲击球头冲击硬度表面后,产生弹跳;利用冲头在距试样表面1mm处的回弹速度与冲击速度的比值计算硬度,公式:里氏硬度HL=1000XVB(回弹速度)/VA(冲击速度)。目前最常用的便携式里氏硬度计用里氏(HL)测量后可以转化为:布氏(HB)、洛氏(HRC)、维氏(HV)、肖氏(HS)硬度。或用里氏原理直接用布氏(HB)、洛氏(HRC)、维氏(HV)、里氏(HL)、肖氏(HS)测量硬度值。时代公司生产的TH系列里氏硬度计就有此功能,是传统台式硬度机的有益补充!”(详细情况请点击«里氏硬度计TH140/TH160/HLN-11A/HS141便携式系歹U»)洛氏硬度(HRC)一般用于硬度较高的材料,如热处理后的硬度等等。2、HB-布氏硬度:一般用于材料较软的时候,如有色金属、热处理之前或退火后的钢铁。布式硬度(HB)是以一定大小的试验载荷,将一定直径的淬硬钢球或硬质合金球压入被测金属表面,保持规定时间,然后卸荷,测量被测表面压痕直径。布式硬度值是载荷除以压痕球形表面积所得的商。一般为:以一定的载荷(一般3000kg)把一定大小(直径一般为10mm)的淬硬钢球压入材料表面,保持一段时间,去载后,负荷与其压痕面积之比值,即为布氏硬度值(HB),单位为公斤力/mm2(N/mm2)。(关于布式硬度(HB)详细情况请点击《布氏硬度机(计)HB-3000B/TH600»)3、洛式硬度是以压痕塑性变形深度来确定硬度值指标。以0.002毫米作为一个硬度单位。当HB>450或者试样过小时,不能采用布氏硬度试验而改用洛氏硬度计量。它是用一个顶角120°的金刚石圆锥体或直径为1.59、3.18mm的钢球,在一定载荷下压入被测材料表面,由压痕的深度求出材料的硬度。根据试验材料硬度的不同,分三种不同的标度来表示:HRA:是采用60kg载荷和钻石锥压入器求得的硬度,用于硬度极高的材料(如硬质合金等)。HRB:是采用100kg载荷和直径1.58mm淬硬的钢球,求得的硬度,用于硬度较低的材料(如退火钢、铸铁等)。HRC:是采用150kg载荷和钻石锥压入器求得的硬度,用于硬度很高的材料(如淬火钢等)。另夕卜:HRC含意是洛式硬度C标尺,HRC和HB在生产中的应用都很广泛HRC适用范围HRC20-—67,相当于HB225-—650若硬度高于此范围则用洛式硬度A标尺HRA。若硬度低于此范围则用洛式硬度B标尺HRB。布式硬度上限值HB650,不能高于此值。洛氏硬度计C标尺之压头为顶角120度的金刚石圆锥,试验载荷为一确定值,中国标准是150公斤力。布氏硬度至U31.255.洛式硬布式硬度6.洛式硬布式硬度头。很大度压力痕较硬之斤压痕的计公度压度为淬硬钢球HBS)或硬质合金球(HBW),试验载荷随球直径不同而不同,从3000须品,成性用部适局不有,值准量值测量,测小,.洛式硬布式硬度.在一定硬度机详值在显,请度接用下况硬直要件情的度需条细位有单度有强没拉,抗数和名且无,一位是单值有字后数然以,可径也直、痕示压显量上测盘镜表微测数点求平均值,适用成品和薄片,归于无损检测一类。和薄片,一般不归于无损检测一类。。(因此习惯称洛式硬度为多少度是不正确的。)一定的近似关系。显示,操作方便,快捷直观,适用于大量生产中。查表或计算,操作较繁琐。HB与HRC可以查表互换。其心算公式可大概记为:1HRC=1/10HB。(关于洛氏点击《洛氏硬度机(计)HR-150A/TH300/TH500/TH320/TH301/TH310系歹U»)
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