该仪器具有多种试验力和多种压头，用于测定金属材料或试件的布氏、洛氏、维氏硬度。适用于黑色金属（钢材、铸铁件、软钢、淬火钢等）和有色金属（铝合金、铜合金等）的硬度测定，并可测定硬质合金、滲碳层和化学处理层的硬度。
HBRV(D)－187.5A1型布洛维硬度计采用了旋转式试验力变换机构和光学测量系统，在机体上装有 显微镜测量装置。使用方便，变荷可靠，示值稳定，广泛适用于工厂车间、试验室、大专院校和科研机构。
The instrument has a variety of tests and a variety of indenter for the determination of metal materials or samples of Brinell, Rockwell, Vickers hardness. Apply to black metal (steel, cast iron, mild steel, hardened steel, etc.) and non-ferrous metals (aluminum, copper alloys, etc.) the determination of hardness and determination of hard alloy, chemical processing and Carburizationlevel hardness.
HBRVD-187.5A1 Brinell Rockwell &Vickers Hardness Tester using rotary power conversion and optical measuring system in the body microscope equipped with measuring devices. Easy to use, reliable and the load changed, showing the value of stability, applicable to the wide range of factory workshops, laboratories , Tertiary institutions and research institutes.
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主要技术参数
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Main technical parameters
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初试验力(N)：98
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Preliminary test force(N)：98
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总试验力
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Total test force
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维氏硬度试验(N)：294、588、980
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Vickers hardness test(N)：294、588、980
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洛氏硬度试验（N）：588、980、1471
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Rockwell hardness test(N):588、980、1471
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布氏硬度试验(N)：306、613、1839
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Brinell Hardness test(N):306、613、1839
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显微镜放大倍率：37.5×、75×
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magnification of microscope：37.5×、75×
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测微鼓轮ZUI小分度值:
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Measure tiny drum wheel minimum scale division value：
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37.5×时为0.004毫米
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0.004mm for 37.5×
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75×时为0.002毫米
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0.002mm for 75×
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试件允许ZUI大高度(mm)：170
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Max height of speciments(mm)：170
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压头中心到机身距离(mm)：140
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Distance from indeneter, s center to outerwall(mm)：140
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硬度计外形尺寸(mm)：463×241×660
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Machine size(mm)：463×241×660
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电源电压：AC220V
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Power supply：AC220V
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光源电压:5V/5W
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Light voltage:5V/5W
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仪器重量(kg)：75
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Weight(kg)：75
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硬度测试范围
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Degree of hardness test seope
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洛氏硬度试验
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Rockwell hardness test
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(70-85)HRA
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(70-85)HRA
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(30-100)HRB
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(30-100)HRB
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(20-67)HRC
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(20-67)HRC
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示值精度：±1HR 示值重复性:0.8HR
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Show value accuracy：±1HR repeatability：0.8HR
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布氏硬度试验
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Vickers Hardness test
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(8-650)HB
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(8-650)HB
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示值精度(δ/％):±2.5 示值重复性(Hcf/％):≤3.0
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Show value accuracy(δ/％):±2.5 repeatability(Hcf/％):≤3.0
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维氏硬度试验
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Vickers hardness test
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(14-1000)HV
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(14-1000)HV
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示值精度(δ/％):±2 示值重复性(Hcf/％):≤2.5
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Show value accuracy(δ/％):±2 repeatability(Hcf/％):≤2.5
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