| HBRV-187.5型电动布洛维硬度计具备布氏,洛氏,维氏三种试验方法,七级试验力的多用途多功能硬度机,能满足用户多种硬度测试的要求。试验力的施加、保荷和卸荷自动完成。使用范围广、操作方便,是工矿企业、科研院校所常备的硬度试验机。 适用范围 淬火钢、表面淬火钢, 硬质合金钢,铸铁,有色金属, 各种调质及退火钢, 硬化薄钢板,也适合交软的金属,表面热处理和化学热处理等。 测量范围:4-450HBS,20-88HRA,20-100HRB,20-70HRC,200-1000HV HBRV-187.5 Motorized Brinell Rockwell & Vickers Hardness Tester with Brinell, Rockwell and Vickers, 3 kinds of measuring method, and as well as 7 steps testing force is able to meet the needs of many kinds of hardness test requirements for users. Testing force can be loaded, kept and unloaded automatically. Therefore the tester is easy to use and widely welcomed by many users. Usage Range: Hardened and surface hardened steel, hard alloy steel, casting parts, non-ferrous metals, various kinds of hardening and tempering steel and tempered steel, carburized steel sheet, soft metals, surface heat treating and chemical treating materials, etc. 硬度计的技术参数 1 初试验力:98.07N(10kg) 允差±2.0% 2 总试验力允差:±1.0% 2.1 布氏硬度试验力:31.25kgf(306.5N)、62.5kgf(612.9N)、187.5kgf(1839N) 2.2 洛氏硬度试验力:60kgf(588.4N)、100kgf(980.7N)、150kgf(1471N) 2.3 维氏硬度试验力:30kgf(294.2N)、100kgf(980.7N) 3 压头规格: 3.1 金刚石洛氏压头 3.2 金刚石维氏压头 3.3 φ1.5875mm、φ2.5mm、φ5mm球压头 4 电源电压:AC220V±5%,50~60Hz 5 延时控制:2~60秒可调 6 压头中心到机身距离:165mm 7 被测试件允许最大高度: 7.1 测试洛氏硬度:190mm 7.2 测试布氏、维氏硬度:160mm 8 显微镜放大倍率:37.5X、75X 9 硬度计外形尺寸(长×宽×高)520×240×700mm 10 仪器重量约:85kg
洛氏硬度示值允许误差 硬度标尺 | 标准块的硬度范围 | 硬度计示值允许误差 | HRA | 20~≤75HRA | ±2HRA | >75~≤88HRA | ±1.5HRA | HRB | 20~≤45HRB | ±4HRB | >45~≤80HRB | ±3HRB | >80~≤100HRB | ±2HRB | HRC | 20~≤70HRC | ±1.5HRC |
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