HRM-45DT型电动表面洛氏硬度计是一种通过电动加载、保荷卸荷的半自动测试金属材料表面硬度的洛氏硬度计。具有操作更简便、压痕微小、精度高等特点。 适用范围表面淬火钢，铜、铝合金薄板，带钢,硬质合金钢，镀锌，镀铬，镀锡，材料表面热处理和化学表面处理的各种金属材料。 HRM-45DTMotorizedSuperficialRockwellHardnessTesteradoptsmotorizedtestingmethod.Itstestingforcecanbeloaded,keptandunloadedautomatically.Avoidman-madeerrorandeasytouse.Thecharacteristicsoftheinstrumentislighttestingforceandtherefore,leavingverysmallindentation.UsageRange:Surfacehardenedsteel,copper,aluminumalloythinsheet,hardalloysteel,zinclayers,chromelayers,tinlayers,surfacehardenedtreatingandchemicaltreatingmaterials,etc.技术数据（TechnicalSpecifications）表面洛氏标尺(SuperficialRockwellScales) HR15N,HR30N,HR45N,HR15T,HR30T,HR45T 初试验力（InitialTestingForce）3Kg(29.42N)试验力（AllTestingForce）15Kg(147.1N),30Kg(294.2N),45Kg(441.3N)硬度读取(IndicationofHardnessValue)表盘式（Dial）保菏时间(DurationTime)2~60S试件最大高度Max.HeightofSpecimen170mm仪器尺寸(长X宽X高)(OverallDimension：LXWXH)520X240X700MM仪器重量(NetWeight)80Kg电源(PowerSupply)AC220V+5%,50~60Hz执行标准(CarriedStandard)GB/T230.2国家标准、JJG112检定规程GB/T230.2ChineseStandardandJJG112TestingRule标准配件、附件(StandardAccessories)金刚石洛氏压头，直径1.5875mm硬质合金球压头，大平试抬、中平试台、V型试台，硬度块，电源线等DiamondRockwellIndenter,Diameter1.5875mmHardAlloySteelBallIndenter,LargeTestingTable,MediumTestingTableandV-shapedTestingTable,HR30NandHR30THardnessBlocks,PowerCable,etc.