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Portable Weld Stress Indentation Tester PMT-1000 For On-Site NDT

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SKU: 7820780576
Model: PMT-1000

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Portable Weld Stress Indentation Tester PMT-1000

Non-Destructive Residual Stress Measurement for Industrial Welds

Product Summary

The Non-Destructive Weld Stress Indentation Tester (Model PMT-1000) is a portable instrument that measures residual stress in welds using the indentation method. It provides direct calculation of welding residual stress from indentation curves without calibration, making it efficient and accurate for on-site applications. Suitable for macro-scale testing, the PMT-1000 is ideal for industries such as petrochemical, energy, aerospace, and pharmaceutical.

Key Features

  • Direct Calculation Without Calibration: Residual stress is derived directly from indentation curves, simplifying the testing process and reducing setup time.
  • Multi-Layer Depth Profiling: Obtains stress gradients through multi-layer indentation along depth, particularly useful for thick-section welds.
  • Micro-Indentation: Leaves indentations of only a few microns, requiring no post-polishing and not affecting subsequent NDT methods such as RT or UT.
  • Weld Stress Database: Builds a comprehensive weld stress database, tracing manufacturing and service stress history for each weld.
  • Safety Factor Output: Outputs a weld safety factor (residual stress / yield strength) for intuitive crack risk assessment.
  • Wide Material Compatibility: Works on difficult-to-weld materials like stainless steel, duplex, and nickel alloys.

Technical Specifications

ParameterValue
Maximum Load1000 N (Max)
Actuation Range25 mm
Loading Speed0.01~30 mm/min
Data Acquisition Rate100 Hz
Motor Rated Voltage2.1 V
Motor Rated Current3 A
Power SupplyWired/Wireless: 220 V / 24 V
Testing RangeMacro-scale
Indentation Depth60~120 μm

Models and Options

Model: PMT-1000 (Standard configuration as specified above). Contact us for optional accessories and fixtures tailored to specific applications.

Materials and Structure

The indentation tester is suitable for a variety of materials including cemented carbide, stainless steel, and aluminum alloy. Its portable structure allows easy handling and operation in confined or remote locations.

Applications

Ideal for industries including petrochemical, energy and power, wind power and renewable energy, aerospace, pharmaceutical, fine chemical, new energy/new materials, and pesticide manufacturing. It is used for weld quality testing, in-service equipment life assessment, and stress monitoring before and after heat treatment.

Customization

We offer customization of fixtures and accessories to suit specific test environments. Please provide your requirements for a tailored solution.

Case Study

A chemical plant used the PMT-1000 to test equipment, achieving stable operation over a 10-year period. The device provided fast and accurate results, enhancing their maintenance efficiency.

Frequently Asked Questions

Q: How does the PMT-1000 measure residual stress without calibration?

A: The instrument uses indentation curves to directly calculate residual stress based on the indentation energy difference method, eliminating the need for external calibration.

Q: Can it be used on thick-section welds?

A: Yes, it can obtain stress gradients by multi-layer indentation along depth, making it suitable for thick-section welds.

Q: What materials can be tested?

A: It is designed for materials like cemented carbide, stainless steel, and aluminum alloy.

Q: Does it affect subsequent NDT tests?

A: It creates indentations of only a few microns, which do not affect subsequent NDT methods such as RT or UT.

Q: Is it suitable for high-cleanliness applications?

A: Yes, it leaves tiny indentations requiring no post-polishing, making it ideal for high-cleanliness environments.

Q: Can it be used on dissimilar metal welds?

A: Yes, it measures stress distribution on each material side of dissimilar metal welds.

Q: What is the power requirement?

A: It supports wired or wireless power of 220 V or 24 V, providing flexibility for field use.

Inquiry Information

For pricing, availability, and technical support, please contact:

Name: Vincent Zhang
Email: vincent_zhang@zhanghuayaoji.com
Tel: +86 181-1890-2332
WhatsApp: +1(805)869-8509

Address: No. 8 Zhenshi Road, Shitangwan Industrial Park, Wuxi, Jiangsu, China