Sinowon Ultrasonic Hardness Tester: Revolutionizing Hardness Measurement in Heat Treatment Industry

In heat treatment processes, hardness is a critical indicator of material performance, directly impacting wear resistance, strength, and service life. Traditional hardness measurement methods often face limitations due to large indentations, complex operations, or workpiece damage. Sinowon's self-developed ultrasonic hardness tester, featuring non-destructive testing, high precision, portability, and broad applicability, has become the ideal tool for hardness detection in the heat treatment industry.

Core Technical Principle

Sinowon's ultrasonic hardness tester operates based on the Ultrasonic Contact Impedance (UCI) method. The hardness value is determined by detecting frequency changes in the sensor rod's resonance. The diamond indenter at the probe tip contacts the workpiece surface under constant pressure. Lower hardness results in larger contact areas, reducing sensor vibration amplitude and causing more pronounced frequency shifts. This principle eliminates dynamic impact forces, creating microscopic indentations (visible only under high-power microscopes), enabling truly non-destructive testing. It is particularly suitable for thin layers, precision components, and surface-hardened workpieces.

Key Advantages for Heat Treatment Industry

3.1 High Precision & Efficiency

• Accuracy: ±3% HV, ±1.5% HR, meeting DIN50159-1-2008 standards
• Results in 2 seconds, 60x faster than traditional benchtop machines
• Automatic conversion between hardness scales (HV, HRC, HB)
• 4-inch color screen displays max/min/average values, storing 1000 datasets

3.2 Non-Destructive Testing & Versatility

• Zero Workpiece Damage: Load options from 3N to 98N, ideal for carburized layers (0.2-0.5mm) and nitrided surfaces
• Adapts to complex geometries: flange edges, gear roots, shafts, thin-walled pipes
• Supports horizontal/vertical operations, covering ferrous/non-ferrous metals and alloys

3.3 Portability & Ease of Use

• 500g lightweight design with 4800mAh battery
• Ready for workshops, labs, or outdoor environments
• Intuitive interface requires no professional training

Typical Application Scenarios

• Quenching Process Validation: Rapid hardness distribution testing on large parts (e.g., train wheels, molds)
• Carburized/Nitrided Layer Inspection: Precise surface hardness measurement for automotive gears/bearings without damaging coatings
• Complex Component Monitoring: Multi-angle inspection of crankshafts, turbine rotors, and weld joints across production stages

Service Commitment

• 1-year warranty + lifetime technical support
• Customizable probes (manual/electric) and solutions
• ISO-standard calibration modules ensure long-term stability 

Conclusion
As the heat treatment industry evolves toward higher precision and efficiency, Sinowon's ultrasonic hardness tester combines non-destructive testing with innovative design, offering reliable solutions for hardness measurement. Whether dealing with complex structures or thin layers, Sinowon empowers industrial quality through technological innovation.

For detailed product information, visit www.sinowon.com.