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what is Portable Indentation Tester (PMT-1000) Product Introduction? | Zhanghua

2025-03-03

Product Overview

The PMT-1000 Portable In-situ Micro-indentation Tester, jointly developed by Wuxi Zhanghua Pharmaceutical Equipment Co., Ltd. and Jova Glenn Technology Co., Ltd., is a non-destructive online testing device based on the indentation method/indentation energy difference method. It focuses on mechanical properties and residual stress testing for energy equipment (e.g., pressure vessels, pipelines), serving third-party testing institutions and frontline production units. It provides critical data support for finite element simulation, failure analysis, lifespan evaluation, and safety assessments.

Core Functions

1. Mechanical Property Testing

- Tensile properties (yield strength, tensile strength)

- Hardness, fracture toughness, strain hardening index

- Biaxial residual stress

2. Residual Stress Testing

- Indentation energy difference method, indentation strain method, X-ray diffraction method (for comparative validation)

3. Application Scenarios - Pressure vessels, long-distance pipelines, remanufactured energy equipment

- Welded joints, thick-walled cylinder weld seams, heat exchanger tube plates, etc.

Technical Advantages

Micro-indentation Technology	Traditional Methods
✅ Non-destructive	❌ Requires sample cutting
✅ Portable & efficient	❌ Laboratory-dependent
✅ Multi-parameter output	❌ Single-parameter testing
✅ Cost-effective	❌ High preparation costs
✅ Supports online testing	❌ Offline operation

Industry Standards & Certifications

- National Standards: GB/T 39535-2020, GB/T 21933-2019

- International Standards: ISO/TR 23381 (mechanical properties and residual stress testing)

- Korean Standards: KS 80550 (indentation tensile property testing)

- ASME Codes: Code Case 2703 (alternative hardness testing)

- Awards: Gold Medal at the Geneva International Exhibition of Inventions

Typical Test Cases

1. Steam Pipeline Comparison (Pre- vs. Post-service)

- Material: 12Cr1MoV

- Yield strength error ≤8%, tensile strength error ≤6%

2. Storage Tank Strength Test

- Material: Q235B, average yield strength 261.88 MPa