HBRV(D)-187.5D1型布洛維硬度計(jì)采用了旋轉(zhuǎn)式試驗(yàn)力變換機(jī)構(gòu)和光學(xué)測(cè)量系統(tǒng),在機(jī)體上裝有顯微鏡測(cè)量裝置。因采用低速同步電動(dòng)機(jī)控制自動(dòng)加卸試驗(yàn)力, 試驗(yàn)力保持時(shí)間可通過延時(shí)電位器實(shí)現(xiàn)無級(jí)可調(diào),除洛氏硬度試驗(yàn)要求表盤人工對(duì)零外,布氏硬度試驗(yàn)和維氏硬度試驗(yàn)分別通過顯微鏡測(cè)量壓痕的直徑和對(duì)角線,沒有人為的操作誤差。
該機(jī)具有較高的測(cè)試精度,操作簡(jiǎn)便、靈敏度高、使用方便,變荷可靠,示值穩(wěn)定,廣泛適用于工廠車間、試驗(yàn)室、大專院校和科研機(jī)構(gòu)。
HBRVD-187.5D1 Brinell Rockwell &Vickers Hardness Tester using rotary power conversion and optical measuring system in the body microscope equipped with measuring devices. As a result of using low-speed synchronous motor control unloaded automatic test force, tester force dwell time through change of the delay potentiometer, with the exception of Rockwell hardness test requirements of artificial dial zero, the Brinell hardness test and Vickers hardness test through microscopes and measuring the diameter of the indentation diagonal, not man-made error of the operation.
The hardness tester has high test accuracy, simple, sensitive and easy to use, reliable the Pressure selecing changed , showing the value of stability, applicable to the wide range of factory floor , Laboratories, universities and research institutions.
主要技術(shù)參數(shù)
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Main technical parameters
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初試驗(yàn)力(N):98
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Preliminary test force(N):98
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總試驗(yàn)力
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Total test force
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維氏硬度試驗(yàn)(N):294、588、980
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Vickers hardness test(N):294、588、980
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洛氏硬度試驗(yàn)(N):588、980、1471
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Rockwell hardness test(N):588、980、1471
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布氏硬度試驗(yàn)(N):306、613、1839
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Brinell Hardness test(N):306、613、1839
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顯微鏡放大倍率:37.5×、75×
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magnification of microscope:37.5×、75×
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測(cè)微鼓輪ZUI小分度值:
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Measure tiny drum wheel minimum scale division value:
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37.5×時(shí)為0.004毫米
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0.004mm for 37.5×
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75×時(shí)為0.002毫米
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0.002mm for 75×
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總試驗(yàn)力保持時(shí)間(s):1-30
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Total test force dwell time(s):1-30
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試件允許ZUI大高度(mm):170
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Max height of speciments(mm):170
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壓頭中心到機(jī)身距離(mm):140
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Distance from indeneter, s center to outerwall(mm):140
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硬度計(jì)外形尺寸(mm):463×241×660
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Machine size(mm):463×241×660
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電源電壓:AC220V
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Power supply:AC220V
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光源電壓:5V/5W
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Light voltage:5V/5W
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儀器重量(kg):75
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Weight(kg):75
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硬度測(cè)試范圍
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Degree of hardness test seope
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洛氏硬度試驗(yàn)
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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 示值重復(fù)性:0.8HR
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Show value accuracy:±1HR repeatability:0.8HR
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布氏硬度試驗(yàn)
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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 示值重復(fù)性(Hcf/%):≤3.0
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Show value accuracy(δ/%):±2.5 repeatability(Hcf/%):≤3.0
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維氏硬度試驗(yàn)
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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 示值重復(fù)性(Hcf/%):≤2.5
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Show value accuracy(δ/%):±2 repeatability(Hcf/%):≤2.5
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