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Ультразвуковий твердомір LR270UH

Огляд товару

There are many types of hardness testing methodscommonly used methods include HB, ПЦ, HV, HL, тощо. But all these methods have boundness. The test force of HB and HRC is strong, so the indentation is big, and the damage to the surface is obvious. HV is tested by optical method, which needs very professional and technical personnel to operate, and cannot directly test large workpiece. And our ultrasonic hardness tester NDT270UH uses ultrasonic contact impedance method to compare and test patterns, this new method brings advantages of high precision, швидка швидкість, portable, легка експлуатація, тощо.

 

Додатки

  • Hardness test of flange edge and gear root stamping parts, цвіль, thin plate, face-hardened gear tooth, gear groove and taper part
  • Hardness test of axle and thin-wall pipes and vessels
  • Hardness test of wheels and turbine rotors
  • Hardness test of bit edge
  • Hardness test of welding parts
  • Measure the depth of deep hole with certain aperture, concave and convex mark with large radians, and irregular plane
  • Hardness test of most ferrous and nonferrous metals and their alloys in industrial production

Ультразвуковий твердомір LR270UH

Functional characteristics

  • New appearance design, innovative sculpt, convenient to hold and good craft.
  • 5 inches large LCD screen with 320×480 color graphics dot matrix, beautiful font and graphics, rich information and clear display.
  • Full English display, menu-type operation, few keys, simple and convenient to operate.
  • For materials with different elastic modulus, only a simple point calibration is required to adapt to the new material.
  • Provide multi-point calibration function for any hardness standard. For materials without conversion table, users only need to prepare 2 до 10 test samples with different hardness to directly calibrate the hardness (Hardness standard is arbitrary, as long as these 2 до 10 samples have the same standard).
  • High accuracy±3 %HV, ± 3%HB, ± 1.5HR (using test stand), according with the test error standard of GB/T-34205, JJF1436 and JB/T9377.
  • Tiny test indentationsmaller than a Leeb hardness tester and requires a high-power microscope to see.
  • High test speedoutput test results within 2S.
  • Easy to test on assembly linecompare with Leeb hardness tester.
  • 50 sets of data storagethe data includes time information.
  • 360° test without correction.

 

Ультразвуковий твердомір LR270UH

Технічні параметри:

МодельNDT270UH
СтандартнийDIN50159-1-2008; ASTM-A1038-2005; JB/T 9377-2010; JJG-654-2013; GB\T34205-2017
ДіапазонHV50-1599, HRC20-76, HB76-618, HRB41-100, HRB41-100, HRA61-85.6, Mpa255-2180
Test ErrorПЦ: ± 2HRC; HB: ± 3%HB; HV: ± 3%HV
Maximum allowable relative errorHardness of standard test blockMaximum allowable relative error of hardness tester %
HV10HV5HV2HV1HV0.8HV0.3HV0.1
<250HV4444455
250HV-500HV4444466
>500HV-800HV4455577
>800HV4466688
Probe test force2кгс(optional 0.5kgf, 1кгс, 5кгс, 10кгс)
Working temperature-20℃~50℃
· Working humidity<=85%






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