Ultrasonic Hardness Checker

The ultrasonic hardness checker (SONOHARD) model SH-21 (E) differs completely from traditional hardness testers from a viewpoint that instead of measuring the size of the indentation of the test sample using a microscope, it employs a diamond indenter equipped with a vibrating rod that presses on the test surface at a fixed force and then measures its hardness by applying ultrasonic vibrationsFEATURES- Measurement only takes a few seconds- Leaves only tiny indentations on test specimens (approx. 0. 1mm2) - Hardness values can be read directly (HV, HRC, Hs, HB) - Conversion to breaking strength (N / mm2) - Measuring stands (wooden, iron, resin, etc.) do not influence measurement- Measurements do not affect the backs of test samples- Can be certified by Nippon Kaiji Kyokai (NK) - 4000 points of data memory- 10 points of calibration memoryADVANTAGES- Most suitable for measuring quenching hardness of narrow sections, enclosed sections, and internal / external gauge sections- Supports four scales, HV, HRC, HS, and HB- Capable of storing up to 2000 points for data and 10 points for calibration values- Applicable to product inspection also for its undetectable indentation- Enabling measuring of probes in any direction of up, down, left, and rightAPPLICATIONS- Evaluation of carburizing and quenching, and high frequency quenching- Weld hardness measurement for welded structures (tank, hull, bridge, steel tower, etc.- Hardness measurement for a gear tooth flank (narrow area) - Measurement of the hardness of a facility or a structure's strength- 100% online inspection for components (engine valve, rack bar, crankshaft, bearing, etc.) Samples of Tested Products: - Motor vehicle parts- Pressed moldings- Steel fame welds- Measurement of small parts- Gravure printing rolls- Papermaking mill rolls- Measurement of roll surfaces- Measurement of pipes for high-pressure gases and liquids- Railway axles