珠海电动表面洛氏硬度计HRM-45DT型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-45DT Motorized Superficial Rockwell Hardness Tester adopts motorized testing method. Its testing force can be loaded, kept and unloaded automatically. Avoid man-made error and easy to use. The characteristics of the instrument is light testing force and therefore, leaving very small indentation. Usage Range: Surface hardened steel, copper, aluminum alloy thin sheet, hard alloy steel, zinc layers, chrome layers, tin layers, surface hardened treating and chemical treating materials, etc. 技术数据（Technical Specifications） 表面洛氏标尺 (Superficial Rockwell Scales) HR15N, HR30N, HR45N, HR15T, HR30T, HR45T 初试验力（Initial Testing Force） 3Kg(29.42N) 试验力（All Testing Force） 15Kg(147.1N),30Kg(294.2N),45Kg(441.3N) 硬度读取 (Indication of Hardness Value) 表盘式（Dial ） 保菏时间(Duration Time) 2 ~ 60S 试件较大高度 Max. Height of Specimen 170mm 仪器尺寸(长X宽X高) (Overall Dimension：LXWXH) 520X240X700MM 仪器重量(Net Weight) 80 Kg 电源( Power Supply) AC220V 5%, 50~60 Hz 执行标准 (Carried Standard) GB/T230.2 标准、JJG112检定规程 GB/T230.2 Chinese Standard and JJG112 Testing Rule 标准配件、附件 (Standard Accessories) 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 Diamond Rockwell Indenter, Diameter 1.5875mm Hard Alloy Steel Ball Indenter, Large Testing Table , Medium Testing Table and V-shaped Testing Table,HR30N and HR30T Hardness Blocks , Power Cable, etc.