Rebound (Leeb) hardness tester TQ-3C intended for quick measuring of metal items in laboratorial, manufacturing and field conditions.
Device is intended for non-destructive testing of production quality in metallurgy, mechanical engineering, aircraft, shipbuilding, atomic industry, oil and gas industry.
Hardness tester functions by Leeb method.
TQ-3C controls hardness of following:
- All basic types of metals and alloys without additional calibrations (structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys as well as alloys of nonferrous metals, castiron, aluminium, bronze, brass);
- Items with surface hardening and high frequency current hardening;
- Items of complicated configuration;
- Heavy and big items with rough surface.
Exploitation advantages
– Wide range of controlled metals and alloys.
– Low sensitivity to the curvative and roughness of surface.
– Monitoring of hardness change along the surface.
– Stable measurements independent from force and time of pressing the probe to the surface.
– Possibility of material identification in blank production.
– Control of “volumetric” hardness.
Features of TQ-3C
Probes characteristics
Photo |
Probe Type |
Weight/thickness/ surface roughness of the article under check |
Length/ Diameter
|
Application |
![](/images_t/146375cbb31e0b9bbc47183a954e0719.webp) |
«D» |
3 kg/6 mm/Ra 3,2 |
138/21 mm |
Solving of main hardness testing tasks with surface roughness less than 3.2 Ra |
«E» |
3 kg/6 mm/Ra 3,2 |
138/21 mm |
Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness |
![](/images_t/c37fcb62a023c7518a447b1b0251d3cd.webp) |
«G» |
8 kg/55 mm/Ra 7,6 |
200/29 mm |
Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra |