The ultrasonic hardness tester is using ultrasonic contact impedance method to compare and test patterns, this is an innovative design of auto-calibration of probe, presents advantages of high precision, fast speed, easy operation, etc.
3 User materials with setup guide was included, in addition, the hardness measurement covering most ferrous metals, non-ferrous metals and their alloys in industrial production.
It is applicable in hardness test of flange edges, root of gear groove, stamping parts, thin plates, for surface-hardened gear grooves and its taper parts, as well as shafts, thin-walled pipes, turbines.etc.
| Measurement direction | perpendicular to testing surface |
|---|---|
| Hardness scale | Vickers (HV), Brinell (HB), Rockwell (HRB), Rockwell (HRC), Rockwell (HRA), |
| Display Measurement | Vickers (HV) + selected hardness scale |
| Measuring materials | steel and cast steel, cast aluminum alloy, pure copper. |
| Display | 3.5-inch IPS full digital color LCD display, resolution 480*320. |
| Probe recognition | automatic recognition + manual setting, supports hot swapping |
| Data storage | maximum 600 measurement |
| Working voltage | 3.7V lithium-ion battery pack |
| Continuous working time | about 10 hours |
| Charging power supply | 5V/1000mA; |
| Communication interface | USB2.0 |
| Probe test force | 2kgf (optional, 5kgf, 10kgf) |
| Test force | Application |
|---|---|
| 98N | Forgings, welds and heat affected zones |
| 50N | Hardened quenching layer or carburized layer of machining parts: camshafts, turbines, welds and heat-affected zones |
| 20N | Flanges, gear groove, stamping parts, molds, crankshafts, turbine rotors, etc. |
| 10N | Ion nitriding layer of stamping dies, forgings |
| 8N | Precision parts, reducers and bearing rotating rings |
| 3N | Hardness test of copper layer or chromium coating (plating) (t≥0.04mm) on cylinder , and coating or hardened quenching layer (t≥0.02mm) on low pressure cylinder |
| 1N | Thin layer, polished surface |
Main unit, Probe (2kgf), Probe cable, 5V ac power adapter, Standard test block, Carrying case
| Maximum allowable relative error | Hardness of standard test block | Maximum allowable relative error of hardness tester +/-% | ||||||
|---|---|---|---|---|---|---|---|---|
| HV1 | HV2 | HV5 | HV10 | HV0.1 | HV0.3 | HV0.8 | ||
| <250HV | 4 | 4 | 4 | 4 | 5 | 5 | 4 | |
| 250HV-500HV | 4 | 4 | 4 | 4 | 6 | 6 | 4 | |
| >500HV-800HV | 5 | 4 | 4 | 5 | 7 | 7 | 5 | |
| >800HV | 6 | 4 | 4 | 4 | 8 | 8 | 6 | |
| Maximum allowable relative repeatability | Hardness of standard test block | Maximum allowable relative repeatability of hardness tester % | ||||||
|---|---|---|---|---|---|---|---|---|
| HV1 | HV2 | HV5 | HV10 | HV0.1 | HV0.3 | HV0.8 | ||
| ≤250HV | 8 | 5 | 5 | 5 | 8 | 8 | 9 | |
| >250HV | 6 | 5 | 5 | 5 | 6 | 6 | 6 | |
| Probe | 1kgf manual probe | 2kgf manual probe | 5kgf manual probe |
|---|---|---|---|
| Accessory Type | Optional accessory | Standard accessory | Optional accessory |
| Test force | 10N | 20N | 50N |
| Diameter | 22mm | 22mm | 22mm |
| Length | 150mm | 150mm | 150mm |
| Resonant rod diameter | 2.4mm | 2.4mm | 2.4mm |
| Maximum roughness of test surface | Ra<3.2um | Ra<5um | Ra<10um |
| Minimum workpiece weight | 0.3kg | 0.3kg | 0.3kg |
| Minimum workpiece thickness | 2mm | 2mm | 2mm |
