意大利(li)AFFRI 250MRS全自(zi)動洛(luo)、布(bu)(bu)硬度(du)計：采用洛(luo)氏(shi)原理，直接測(ce) 量顯(xian)示洛(luo)氏(shi)及布(bu)(bu)氏(shi)硬度(du)(深(shen)度(du)法)。AFRI閉環加載(zai)系(xi)統自(zi)動控制及選(xuan)擇測(ce)試(shi)載(zai)荷。啟動按鈕自(zi)動完(wan)成保護(hu)套接觸、夾緊(jin)并調整工件(jian)(jian)，測(ce)頭預壓載(zai)、加載(zai)、 保壓、測(ce)量、卸載(zai)等，可(ke)在有灰塵(chen)、震動、溫度(du)突變條(tiao)件(jian)(jian)下測(ce)量。
應用實例：
齒輪：
250 MRS 
3332 MRS 
3332 MRSA / 3302 MRSA
| 250 MRS | 3332 MRS | 3332MRSA | 3302 MRSA | |
| 標 準 | EN-ISO 6506-2 / EN-ISO 6507-2 / EN-ISO 6508-2 / EN-ISO 2039 / EN-ISO 868 / ASTM E-18 E-10 / ASTM E-384 / ASTM E-2240 / JIS | |||
| X/Y工(gong)作臺 | ---- | 330x390 mm | ||
| Indenter and clamping-hood stroke | 0/50 mm | ---- | 0/50 mm | |
| Vertical head stroke | ---- | 0/300 mm | 0/500 mm motorized (On request 0/700 mm) | |
| Elevating screw stroke | 0/215 mm | ---- | ||
| 工作深度(du) | 190 mm | 200 mm | ||
| 預載(zai)測力 | 29.4 - 98.1 N (3 - 10 kgf) | |||
| 力 值 | Rockwell: 588.4 - 980.7 - 1471 N (60 - 100 - 150 kgf) Superficial Rockwell: 29.42 - 147.1 - 294.2 - 441.3 N (3 - 15 - 30 - 45 kgf) Brinell: 49.03 - 61.29 - 98.07 - 153.2 - 245.2 - 294.2 - 306.5 - 612.9 - 1226 - 1839 N (On request 2452 N) Vickers - Knoop: 9.807 - 29.42 - 49.03 - 98.07 - 147.1 - 196 - 294.2 - 490.35 - 980.7 N (1 - 3 - 5 - 10 - 15 - 20 - 30 - 50 - 100 kgf) Optional tests: 49 - 132 - 358 - 961 N (For plastics and rubbers as per EN-ISO 2039 std) Shore A - D | |||
| 測(ce)試項目 | Rockwell: HRC - HRA - HRD - HRB - HRF - HRG - HRL - HRM - HRR Superficiale Rockwell: HRN - HRT Brinell HBWT: HB30 - HB10 - HB5 - HB2.5 MPa (F/D2) Vickers - Knoop (Only indentation): HV1 - HV3 - HV5 - HV10 - HV15 - HV20 - HV30 - HV50 - HV100 Shore A - D | |||
精度：優于(yu)0.5%
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