Product parameters:
First, an overview:
Mattel MH320Portable Leeb hardness tester based on the hardness measurement, can be measured easily and quickly on a variety of materials, hardness measurement values are displayed at the same time, can be prepared in a variety of hardness (Brinell HB , Rockwell HRC , Vickers HV , Shaw HS ) Free conversion allows for preset tolerance limit, out of range alarm. Host the product design and integrated high speed thermal printer, imported high-speed core support on-site instant printing capabilities of the printer, imported long-lasting paper data storage for a long time. Low-power design concept based on stable IC ICS, standard high capacity, long life, high speed rechargeable Ni-MH battery pack. Chinese display, menu-driven operation is simple and convenient, seven special impact device without calibration, automatic identification, USB Interface transfer, mass storage, and PC Personalized data processing software.
Second, the technical parameters:
Third, the applicable materials:
Steel and cast steel, alloy tool steel, stainless steel, grey cast iron, nodular cast iron, cast aluminum alloy, copper-zinc alloys (brass), copper-Tin alloys (bronzes), pure copper, forged steel
Four, working conditions:
Ambient temperature: operation temperature:- 10~ + 50℃; Storage temperature: -30℃~ + 60℃; Relative humidity90% ;
Environment no strong vibration, does not have a strong magnetic field, no corrosion and serious dust.
Five features:
Six instrument configuration:
| Serial number | The name | The number of | Notes |
Standard configuration | 1 | Instruments hosting | 1Taiwan |
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2 | DImpact device | 1Nondescript animals |
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3 | Standard hardness blocks | 1Piece |
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4 | Nylon brush | 1Nondescript animals |
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5 | Small support rings | 1Nondescript animals |
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6 | Power adapter (charger) | 1Nondescript animals |
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7 | Printer paper | 1Volume |
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8 | Random data | 1Copy |
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9 | ABS Instrument case | 1Nondescript animals |
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Select configuration | 10 | Nylon brush b |
| GImpact device use |
11 | Special impact device and supporting ring |
| See Schedule 3 and Schedule 4 | |
12 | Data transfer and analysis software CD | 1Set | Application on your computer | |
13 | Communication cable | 1Long things |
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Special impact device
Seven, power on display and a brief description:
Hardness standard |
Average |
The impact direction |
Battery |
The number of shocks |
Measuring value |
Materials
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Battery: displays the remaining capacity.
• Impact: the impact direction.
• Average value: after the set number of shocks, displays the average appeared.
• Standard hardness: hardness of the current measured value.
• Measurements: current single measurement values (average tip-free), the current average (mean).
• Display: indicates more than conversion or measurement range, lower conversion or measurement range.
• Materials: materials for the current setting.
• Number of shocks: impact number displayed when the measurement has been completed, with the shortcut key display settings when setting the impact and number of number of number of shocks, when browsing a single measurement values display the corresponding number of single measurement.
Eight USB data processing software:
• Deposit: the measured data is stored
• Out: data from the host to bring up
• Print: print the data output, the A4 interface
• Overload: overload displayed when the set tolerance limits
• Clear: clear data
• Connections: setting and host connections
• Disconnect: disconnect set from the host
• Download: download the data to a local, realization of mass storage
• Settings: parameters setting
• Help: instant help feature
Seven, the MH310 MH320 differences are as follows:
1, On the show: the MH310 is a segment LCD, economy function is relatively simple. MH320 menu-driven operation, powerful, easy to use 2, storage: MH310 can store up to 100 Group (impact and number of 32~ 1), MH320 storage 500 group.
3, On the standard: MH310 data processing software for optional configuration, MH320 standard standard data processing software.
Ten tables measuring range:
Materials | Hardness | Impact device | |||||
D/DC | D+15 | C | G | E | DL | ||
Steel and cast steel Steel and cast steel | HRC | 17.9~ 68.5 | 19.3~ 67.9 | 20.0~ 69.5 |
| 22.4~ 70.7 | 20.6~ 68.2 |
HRB | 59.6~ 99.6 |
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| 47.7~ 99.9 |
| 37.0~ 99.9 | |
HRA | 59.1~ 85.8 |
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| 61.7~ 88.0 |
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HB | 127~ 651 | 80~ 638 | 80~ 683 | 90~ 646 | 83~ 663 | 81~ 646 | |
HV | 83~ 976 | 80~ 937 | 80~ 996 |
| 84~ 1042 | 80~ 950 | |
HS | 32.2~ 99.5 | 33.3~ 99.3 | 31.8~ 102.1 |
| 35.8~ 102.6 | 30.6~ 96.8 | |
Steel Forged steel | HB | 143~ 650 |
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CWT , ST Alloy tool steel | HRC | 20.4~ 67.1 | 19.8~ 68.2 | 20.7~ 68.2 |
| 22.6~ 70.2 |
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HV | 80~ 898 | 80~ 935 | 100~ 941 |
| 82~ 1009 |
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Stainless steel Stainless steel | HRB | 46.5~ 101.7 |
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HB | 85~ 655 |
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HV | 85~ 802 |
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GC. IRON Gray cast iron | HRC |
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HB | 93~ 334 |
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| 92~ 326 |
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HV |
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NC , IRON Nodular cast iron | HRC |
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HB | 131~ 387 |
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| 127~ 364 |
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HV |
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C. ALUM Casting of aluminum alloy | HB | 19~ 164 |
| 23~ 210 | 32~ 168 |
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HRB | 23.8~ 84.6 |
| 22.7~ 85.0 | 23.8~ 85.5 |
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BRASS Copper-zinc alloy (Brass) | HB | 40~ 173 |
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HRB | 13.5~ 95.3 |
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BRONZE Copper-tin alloy (Bronze) | HB | 60~ 290 |
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COPPER Pure copper | HB | 45~ 315 |
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11, special impact device technical data sheets and apply:
Special impact device | DC(D)/DL | D+15 | C | G | E | |||||
Impact energy Impact body weight | 11mJ 5.5g/7.2g | 11mJ 7.8g | 2.7mJ 3.0g | 90mJ 20.0g | 11mJ 5.5g | |||||
Ball hardness: Ball diameter: Ball head material: | 1600HV 3mm Tungsten carbide | 1600HV 3mm Tungsten carbide | 1600HV 3mm Tungsten carbide | 1600HV 5mm Tungsten carbide | 5000HV 3mm Diamond | |||||
Impact device diameter: Impact device length: Impact device weight: | 20mm 86(147)/ 75mm 50g | 20mm 162mm 80g | 20mm 141mm 75g | 30mm 254mm 250g | 20mm 155mm 80g | |||||
Specimens maximum hardness | 940HV | 940HV | 1000HV | 650HB | 1200HV | |||||
Surface roughness Ra of specimen: | 1.6μm | 1.6μm | 0.4μm | 6.3μm | 1.6μm | |||||
The minimum weight of the specimen: Direct measurement Need stable support Need compact coupling |
﹥5kg 2~ 5kg 0.05~ 2kg |
﹥5kg 2~ 5kg 0.05~ 2kg |
﹥1.5kg 0.5~ 1.5kg 0.02~ 0.5kg |
﹥15kg 5~ 15kg 0.5~ 5kg |
﹥5kg 2~ 5kg 0.05~ 2kg | |||||
Specimen minimum thickness Compact coupling Minimum depth of hardening layer |
5mm ≥0.8mm |
5mm ≥0.8mm |
1mm ≥0.2mm |
10mm ≥1.2mm |
5mm ≥0.8mm | |||||
Ball indentation size | ||||||||||
Hardness 300HV | Indentation diameter Indentation depth | 0.54mm 24μm | 0.54mm 24μm | 0.38mm 12μm | 1.03mm 53μm | 0.54mm 24μm | ||||
Hardness 600HV | Indentation diameter Indentation depth | 0.54mm 17μm | 0.54mm 17μm | 0.32mm 8μm | 0.90mm 41μm | 0.54mm 17μm | ||||
Hardness 800HV | Indentation diameter Indentation depth | 0.35mm 10μm | 0.35mm 10μm | 0.35mm 7μm | -- -- | 0.35mm 10μm | ||||
Scope impact devices | DC Measurement hole or cylinder barrel;DL Measurement of thin narrow slots or holes ; Type d for General measurements | D+15Small contact surface, long, suitable for measuring Groove or concave surfaces | CImpact is small, on the surface damage is very small, without destroying the hardened layer, suitable for measuring small lightweight components and surface hardening. | GMeasurement of large thick and its surface is rough castings and forgings | EMeasurement of high hardness material | |||||

