- Description
- Exploitation
- Technical specifications
- Delivery set
- Additional equipment
COMBI hardness tester TQ-4Combi – portable precision device with brand-new soſt ware.
Device is intended for non-destructive testing of production quality in metallurgy, mechanical engineering, aircraft, shipbuilding, atomic industry, oil and gas industry.
Applying TKM-459CE combi you receive all advantages of UCI and Leeb methods of metals and alloys hardness control.
TQ-4Combi controls hardness of following:
- Carbon and structural steels as well as other fine-grained materials
- Hard-surfaced items (cementation, nitride hardening, high frequency current hardening)
- Heat-resistant, corrosion-resistant, stainless steels
- Non-ferrous metals and alloys (cast iron, aluminium, bronze, brass)
- Electroplated coating (chrome, copper, nickel, zinc, tin), overlaying
- Items of complex configuration (gear teeth, shafts, pipes of any diameter, grooves, blind holes)
- Thin-walled and small-sized items
- Large items and heavy-duty equipment (gas pipelines, rails, construction elements)
Exploitation advantages
– Wide range of metals and alloys.
– Stable measurements with no impact from force and time of pressing the probe to surface.
– Low sensitivity to curvature and roughness of surface.
– Hardness measurement in hard-to-reach areas (position of probe has no impact on the results of measurement).
– Wide range of accessories.
Features of TQ-4Combi
- Impact-, dust- and water-proof housing.
- Bright color display allows to make measurements at below zero temperature.
- Signalization about exceeding of prescribed measurement threshold.
- Unique statistical data processing system.
- Fast calibration of device scales with one or two standard test blocks.
- Flexible device memory for readings recording and analysis.
- Programming of additional calibrations for scales of hardness tester with one or two standard test blocks.
- Fast programming of additional scales with two to ten standard test blocks.
Probes characteristics
| Photo | Probe Type/Load | Weight/thickness/ surface roughness of the article under check |
Length/ |
Application |
| UCI method | ||||
 |
«А»(HV5) 50H/5 kg |
1 kg/3 mm/Ra 1,6 | 145/26 mm | Solving of main hardness testing tasks |
| «H» (HV1) 10H/1 kg |
1 kg/2 mm/Ra 0,8 | 145/26 mm | Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thinwalled and small-sized items | |
| «С» (HV10) 100H/10 kg |
1 kg/4 mm/Ra 3,2 | 145/26 mm | Hardness testing of items with unprepared surface, large items and heavy-duty equipment | |
 |
«К»(HV5) 50H/5 kg |
1 kg/3 mm/Ra 1,6 | 76/33 mm | Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas |
 |
«AL»(HV5) 50H/5 kg |
1 kg/3 mm/Ra 1,6 | 190/26 mm | Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm) |
| Leeb method | ||||
 |
«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 | |
 |
«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 |
Requirements for the objects of control
| Preparation | UCI method | Leeb method |
| Need no additional preparation |
Weight 1 kg or more
Thickness 2 mm or more
|
Weight 5 kg or more
Thickness 6 mm or more
|
| Need to be fixed on the base plate |
Weight less than 1 kg
Thickness less than 2 mm
|
Weight less than 5 kg
Thickness less than 6 mm
|
| Roughness requirements | 0.8 – 3.2 Ra (depending on probe) | 3.2 – 7.2 Ra (depending on probe) |
Hardness testers modes
| Measurement mode | Readings | Using |
| By basic scales | Basic hardness units (HRC, HB, HV) | Hardness testing of the bulk of products |
| By additional calibrations to basic scales | By HRA, HRB, HSD scales and ultimate tensile strength | Hardness testing of high-alloy steels, special cast iron and nonferrous metals |
| By additional scales | Scales are programmed by the user | Special problems solving |
The parameters of the statistical processing of measurements
- Maximum, minimum, mean value, standard deviation from the mean.
- The average deviation from the values set by a user, results are more/less the values, the maximum deviation in the large/smaller side of the value.
- Number of results outside the upper/lower limit of range (user specified), maximum deviation from the upper/lower border.
- Automatic garbage results, incorrect measurement.
- Comparison of results of measurements in the series (the comparison charts on the display of the hardness tester).
| Characteristic | Values |
| Relative average error at regular calibration | 3-5 % |
| Hardness testing ranges: | |
| Rockwell C | 20-70 HRC |
| Brinell | 90-450 HB |
| Vickers | 240-940 HV |
| Spot diameter on the item surface for probe positioning | From 1 mm on flat surface From 5 mm in a slot |
| Quantity of possible additional scales calibrations | 5 for each scale |
| Quantity of additional scales | 3 |
| Duration of the measurement | 2 seconds |
| Quantity of measurements for average reading calculation | 1-99 |
| Memory capacity | 12 400 readings |
| Maximum quantity of named blocks of readings generated in memory | 100 |
| PC connection | USB |
| Power supply | Li-ion accumulation battery |
| Dimensions of hardness tester electronic unit | 121x69x41 mm |
| Weight of electronic unit | 0.3 kg |
| Weight of A-probe | 0.3 kg |
| Weight of D-probe | 0.15 kg |
| Operating temperature range | -15…+35 °C |
| Warranty | 1 year |
| Elements | Hardness tester TQ-4Combi |
Hardness tester TQ-4Combi+ |
| Electronic unit with accumulation battery | + | + |
| A-type probe | + | + |
| D-type probe | + | + |
| Connecting cable for A-type probe | 1 pcs | 2 pcs |
Adapter “U4” |
+ | |
Adapter “Z3” |
+ | |
| Standard test block HRC | + | |
| Standard test block HB | + | |
| Standard test block HV | + | |
| Charger | + | + |
| Operating manual | + | + |
| PC cable | + | + |
| Soft case | + | + |
| Cuff to fix device on arm | + | + |
| Bag for carrying and storing | + | + |
ACCESSORIES
- Replaceable probes of different construction and load
- Special heads to facilitate positioning of the probe on complex surfaces
- Connection cables
Adapter “U4” for hardness tester TQ-4C
Adapter “U4” for positioning of probe on flat, curved, cylindrical surfaces.
Minimum diameter of controlled item is 4 mm.
Adapter “U4” is purposed for following UCI probes:
- Probe A (HV5)
- Probe H (HV1)
- Probe C (HV10)
Probe AL (HV5) for hardness tester TQ-4C
Probe AL (HV5) for hardness tester TQ-4C
The 65 mm long tip allows to measure hardness in hard-to-reach areas:
– in small diameter holes up to 62 mm deep,
– between the teeth of the gears,
– in grooves, recesses, etc.
– in small diameter holes up to 62 mm deep,
– between the teeth of the gears,
– in grooves, recesses, etc.
Probe AL (HV5) is purposed for hardness measurement of following:
- Carbonaceous and structural steels;
- Items with surface-hardened layers such as cementation, nitride hardening, high frequency current hardening;
- Heat-proof, corrosion-proof, non-corrosive steels;
- Plated coating (chrome), overlaying;
- Items of complicated configuration.
Advantages
- Stable readings independent from force and time of pressing.
- Easy measuring in hard-to-reach areas.
- Ultra-small control area (from 1 mm).
- Control in slots and blind holes from 5 mm (not provided by rival devices).
- Invisible print on mirror-surface.
- Low sensitivity to the curvative of surface, thickness and weight of product.
Probes characteristics
| Photo | Probe Type/Load | Weight/thickness/ surface roughness of the article under check |
Length/ |
Application |
 |
«А» 50H/5 kg |
1 kg/3 mm/Ra 1,6 | 145/26 mm | Solving of main hardness testing tasks |
| «H» 10H/1 kg |
1 kg/2 mm/Ra 0,8 | 145/26 mm | Hardness testing of electroplated coating (chrome, copper, nickel, zinc, tin), thinwalled and small-sized items | |
| «С» 100H/10 kg |
1 kg/4 mm/Ra 3,2 | 145/26 mm | Hardness testing of items with unprepared surface, large items and heavy-duty equipment | |
 |
«К» 50H/5 kg |
1 kg/3 mm/Ra 1,6 | 76/33 mm | Hardness testing of inner surface of tubes, tanks and other hard-to-reach areas |
 |
«AL» 50H/5 kg |
1 kg/3 mm/Ra 1,6 | 194/26 mm | Hardness testing in hard-to-reach areas as pinholes, grooves, in-between gear teeth zones (length of tip 65 mm) |
ATTENTION! There is a built-in Lemo plug-in in the probe. Connection cable is sold separately.
The design of hardness testers TQ-4C provides full interchangeability of probes!
Probe E for hardness tester TQ-3C
Probe E is a replaceable probe for Leeb Hardness tester TQ-3C.
Probe with indenter made of polycrystalline of boron nitride intended for control of materials with high hardness.
The Probe E is used for hardness testing:
- 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.
Advantages of Leeb probe
- Hardness measurement in hard-to-reach areas.
- The spatial position of the probe does not affect the measurement result.
- The robust housing is not subject to mechanical stress.
- Long service life.
Probes characteristics
| Photo | Probe Type | Weight/thickness/ surface roughness of the article under check |
Length/ |
Application |
 |
«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
|
|
 |
«G» | 6 kg/55 mm/Ra 7,6 | 200/29 mm | Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra |
ATTENTION! If you buy only Probe E, the Hardness tester TQ-3C should be sent to the retrofit and alignment.
Probe D for hardness tester TQ-3C
Probe D is included in the Basic delivery set of the Leeb Hardness tester TQ-3C.
The Probe D is used for hardness testing:
- 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.
Advantages of Leeb probe
- Hardness measurement in hard-to-reach areas.
- The spatial position of the probe does not affect the measurement result.
- The robust housing is not subject to mechanical stress.
- Long service life.
Probes characteristics
| Photo | Probe Type | Weight/thickness/ surface roughness of the article under check |
Length/ |
Application |
 |
«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
|
|
 |
«G» | 6 kg/55 mm/Ra 7,6 | 200/29 mm | Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra |
ATTENTION! If you buy only Probe D, the Hardness tester TQ-3C should be sent to the retrofit and alignment.