TIME5630 Ultrasonic Hardness Tester
Paired with a specialized pipe fixture for precise on-site hardness testing of high-curvature workpieces.
 

In industries such as metallurgy, pipe processing, and roll manufacturing, hardness testing for large pipes and rolls has long presented a challenge: the workpieces are too bulky to transport to benchtop hardness testers. With standard portable testing, maintaining perpendicular pressure while holding the probe by hand is difficult; slippage on curved surfaces often leads to data scatter and significant errors, directly affecting quality assessments of the finished product.  TIME5630 Ultrasonic Hardness Tester, when paired with a custom pipe measurement fixture, effectively solves the problem of on-site hardness testing for large-diameter, curved workpieces.

TIME5630 is a portable, non-destructive hardness testing device based on the Ultrasonic Contact Impedance (UCI) method, compliant with the GB/T 34205-2017 national standard. The device uses a diamond Vickers indenter to contact the test surface under constant pressure, calculating material hardness based on changes in the resonant frequency of an ultrasonic vibrating rod. The resulting indentation is microscopic—making the test virtually non-destructive—and the device directly outputs hardness data in multiple scales (HV, HRC, HB, etc.) without the need for secondary conversion. The main unit displays measurements in real-time with rapid testing speeds—taking only a few seconds per point—making it suitable for various scenarios, including heat treatment monitoring, incoming material inspection, and finished product quality checks.

While standard handheld operation offers stable and reliable testing for flat workpieces, it struggles with curved surfaces like pipes and rolls; manual handling makes it difficult to keep the probe strictly perpendicular to the surface, and factors like hand tremors and surface curvature compromise repeatability. The specialized pipe fixture acts as a dedicated accessory that effectively overcomes these limitations in curved-surface testing.

As shown in actual application images, the entire assembly is positioned on the surface of a large metal roll. The fixture uses rollers to conform to the curved outer wall, while a locking mechanism ensures rapid positioning. The probe is rigidly fixed, guaranteeing it remains perpendicular to the curved surface throughout the measurement process, thereby eliminating angular deviations and pressure instability caused by manual operation. The handle design facilitates ease of use, eliminating the need for two-handed probe operation; this reduces operator fatigue during prolonged testing while significantly enhancing measurement repeatability and data reliability. As shown in the image, the device performs inspections directly on the surface of finished rolls, providing clear, immediate readings and enabling on-site testing without the need to dismantle or transport heavy workpieces.

Key Application Value
1. Suitable for High-Curvature Workpieces: Designed for large-diameter curved components such as rolls, steel pipes, and pressure vessel shells, it resolves the industry-wide issue of inaccurate curved-surface measurements common with standard portable hardness testers. It enables in-situ testing without the need to cut samples.
2. Stable and Reliable Testing: The fixture stabilizes the probe's orientation, minimizing human error and ensuring consistent results; it meets the requirements for batch inspections on production lines and post-heat-treatment hardness verification.
3. Non-Destructive and Efficient: Ultrasonic testing creates only micron-scale indentations, leaving the finished workpiece surface undamaged. This eliminates the risk of damaging valuable finished parts and offers far greater efficiency than the sampling methods used with benchtop testers.
4. Versatile Application: The TIME5630 is highly versatile; beyond rolls and pipes, it can test hardened mold layers, gear tooth surfaces, blades, welded joints, flange edges, and more. By using different fixtures, it easily adapts to various testing scenarios, including flat surfaces, inner bores, and curved surfaces.
In pipe and roll production workshops, this solution allows quality inspections to be conducted directly on the workpiece itself. It eliminates the need for sampling, cutting, and transporting parts for testing, thereby shortening the inspection cycle and providing an efficient, reliable method for heat-treatment process verification, incoming material quality control, and final product inspection.

The combination of the TIME5630 ultrasonic hardness tester and a specialized pipe fixture merges the flexibility of a portable instrument with the high precision of fixture-based positioning, offering a practical, field-ready solution for hardness testing on large, curved metal components.