HB-62.5型小负荷布氏硬度计

HB-62.5型小负荷布氏硬度计采用精密机械技术和光电技术的新型维氏硬度计。该机采用微机控制，通过软件能调节测量光源的强弱，并能试验力保持时间，以LEG显示。该机采用独特的测量转换和测微目镜一次测量读数机构，使用方便，测量精度高。
　　硬度计配可选摄影装置，能对所测压痕和材料金相组织进行拍摄，适用于铸铁、有色金属及其合金，各种退火调质处理后的钢材，特别是对较软的金属如纯铝，铅，锡测量的硬度较正确，是科研机构、企业及质检部门进行研究和检测的理想硬度测试仪器。
     Model HB-62.5 Low Load Hardness Tester is a new hi-tech product integrating precision mechamical and photoelectrical technologies.
    The following highlight key features and functions of this tester:
--Micro computer control;
--Adjustment of lightng source via soft keys;
--Adjustment of pressure holding time and LED display;
--Unigue measurement conversion device and unique micro eyepiece one-time measurement;
--Camera for indention photographiny and metallography.
    The tester can take pictuture of impress and metallo of the material with a camera.  It can measure castiron, no-ferrous, alloy and anealed steel, it specially designed for testing soft metal such as alumimium, tin etc.  For research institutes, factories labs and QC departments, this is an ideal hardness testing instrument for research or measuring purposes.

HB-62.5型小负荷布氏硬度计主要技术参数：Specifications
 

试验力testing pressure:  61.29N(6.25Kgf),76.6N(7.813Kgf),153.2N(15.625Kgf),294N(30Kgf),306.25N(31.25Kgf),612.9N(62.5Kgf)
硬度块的硬度Hardness Value Range of test Block:HBS(W)≤225  >225 
示值误差Error Range in Display:±3.0%
试验力施加方法Pressure Loading & Unloading:自动加卸试验力Automatic
测量显微镜放大倍率Magnification of Microscope:50x
试验力保荷时间Pressure Holding Time:5-60s(范围内以5秒为单位，任意设定)
最小检测单位Min. Measurable Unit:2μm
试件最大高度Max. Height of Sample:160mm
压头中心到机壁最大距离Distance from Indenter’s center to outerwall:135mm
主机重量Main Body Weight:约45kg
电源Power Supply:AC220V/50HZ
外型尺寸：（长×宽×高）Machine Size(L×W×H) (540×220×650)mm
硬度测量范围Hardness Value Range:8-450HBS,8-650HBW