Description
UCI hardness tester NOVOTEST T-U2 dirancang untuk pengujian kekerasan non-destructive yang cepat pada:
Logam dan paduan logam (alloys) berdasarkan skala kekerasan internasional yang terstandarisasi: Rockwell (HRC), Brinell (HB), Vickers (HV).
Logam dengan karakteristik berbeda dari baja (seperti logam non-ferrous, paduan besi, dan lainnya) dengan menggunakan lima skala tambahan untuk kalibrasi.
Penentuan kekuatan tarik (Rm) pada produk baja karbon pearlitic melalui fitur kalkulasi otomatis dari skala kekerasan Brinell (HB).
Ultrasonic hardness tester T-U2 menerapkan metode ultrasonic contact impedance (UCI).
Metode UCI untuk Pengujian Kekerasan
Metode pengukuran kekerasan UCI telah memenuhi standar ASTM A1038.
UCI probe ditujukan untuk pengukuran kekerasan pada area pengujian dengan ketebalan minimal (mulai dari 1 mm), objek dengan bentuk permukaan yang kompleks, serta untuk mengukur kekerasan pada lapisan permukaan yang dikeraskan (surface hardened layers).
Metode ini sangat cepat dan mudah dilakukan:
Letakkan probe pada permukaan objek yang diuji.
Tekan probe dengan tekanan yang diperlukan ke permukaan.
Simpan nilai kekerasan yang muncul pada layar perangkat.
Penggunaan diamond indenter berukuran kecil memungkinkan pengukuran nilai kekerasan pada semua item dengan ketebalan lebih dari 1 mm. Metode UCI adalah metode pengujian yang paling minim kerusakan (least destructive) karena hardness tester NOVOTEST T-U2 dengan UCI probe meninggalkan bekas injakan (imprints) yang jauh lebih kecil dibandingkan mayoritas alat bench hardness tester. Itulah sebabnya, portable hardness tester dengan UCI probe adalah pilihan terbaik.
Perangkat ini menggabungkan keunggulan utama dari sebuah ultrasonic hardness tester dengan tingkat kegunaan (usability) yang tinggi serta keandalan perangkat yang mumpuni.
Spesification
| Range of hardness
– Rockwell, HRC
– Brinell, HB
– Vickers, HV | 20 – 70
90 – 450
230 – 940 |
| Measurement accuracy: | - HRC: 2HRC
- HB: 10HB
- HV: 15HV
|
| Standards | ASTM A1038, ASTM E140 |
| Materials | - UCI probe – pre-calibrated for steel.
- Additional custom scales and materials for calibration.
|
| Dimensions, mm | 122*65*23 |
| Operating temperature range, ° C | -20 to +40 |
| Power | 2pcs AA batteries |
| Bateries life, hours, not less | 20 |
| Weight of electronic unit with batteries, no more, kg | 0.2 |
Restrictions about the using of the UCI hardness tester T-U2 Limited using of hardness tester for hardness testing of products with coarse-grained structure (eg, cast iron) or product which are weighing less than 10 grams, or thinner than 1 mm.
Available Option
- Additional UCI probes. Also, after the purchase if will be needed, user can order the additional Leeb probe (D, DC, DL, C, D+15, E, G), with activation code and will get combined hardness tester with two probes (UCI+Leeb).
- Batteries
- Charger
- Hardness test blocks
- Portable grinding machine
- Case for hardness tester
Features and applications of UCI U1 probe type:
| Model | Load | Features | Main applications | |
| UCI U1 (98 N) | 98 N(10 kgf) | The main type of probe for solving most problems of hardness measurement. 10 kg load is to be applied for measurement (set automatically by the probe). Low requirements for surface cleanliness. | – Heat-treated and cemented details.- Measuring in grooves, on teeth, on radius surfaces.- Measurement on the blades, on the internal surface of the pipes, openings. | |
| UCI U1 (50 N) | 50 N(5 kgf) | The main probe type for the most tasks of hardness measurement. 5 kg. load is to be applied for measurement (automatically controled by the probe). Average surface cleannes requirements. | – Heat-treated and cemented parts, for example, shafts, turbines, gears, teeth, welds, heat affected zones.- Measuring in grooves, on teeth, in grooves, on radius surfaces.- Measurement on the blades, on the internal surface of the pipes, openings. | |
| UCI U1 (10 N) | 10 N(1 kgf) | The reduced load probe is designed to measure the hardness of material with increased requirements to the print size (polished surfaces), to measure the hardness of surface hardened layers. 1 kg. load is to be applied for measurement (automatically controled by the probe).
More sensible to the surface cleanliness, in comparison with U1 (50 N). | – Nitrided and cemented surface layers of molds, stamps, stamps, thin-walled parts.- Bearings, lateral surfaces of saws teeth.- Measurement of hardness of hardening coatings.– Measurement on the blades, on the inner surface of the pipes, inside the holes. |