Portable Nondestructive Weld Stress Tester – PMA-1010 for Multi-Pass Welds
The PMA-1010 enables evaluation of stress relief effects layer by layer on multi-pass welds without cutting, providing insights into the weld's residual stress distribution that are crucial for quality control and life assessment.
Product Summary
This instrument is specialized for multi-pass welds, allowing stress measurements at different depths or passes. It uses the indentation method to create tiny indentations (a few microns) that do not affect subsequent NDT, thus preserving the integrity of the component. Simultaneous measurement of longitudinal and transverse stresses gives a complete picture of the stress field.
Key Selling Points
- Layer-by-Layer Analysis: Evaluate stress relief effects on multi-pass welds without cutting, enabling detailed understanding of inter-pass stresses.
- Complete Stress Field: Simultaneously measure longitudinal and transverse residual stresses for full weld stress field assessment.
- Non-Destructive: Indentations are only a few microns, preserving weld integrity and allowing subsequent testing.
- Portable: One-person operable, ideal for complex on-site situations.
- Safe Operation: No ionizing radiation risk.
Technical Specifications
| Maximum Load | 1000 N (Max) |
| Actuation Range | 25 mm |
| Loading Speed | 0.01~30 mm/min |
| Data Acquisition Rate | 100 Hz |
| Rated Voltage of Motor | 2.1 V |
| Rated Current of Motor | 3 A |
| Wired/Wireless Power | 220 V/24V |
| Testing Range | Macro-scale |
| Indentation Depth | 60~120 μm |
Models and Options
Model: PMA-1010
Materials and Structure
Compatible with cemented carbide, stainless steel, aluminum alloy. Designed for easy deployment in harsh industrial environments.
Applications
- Quality control of multi-pass welds in pressure vessels and pipelines
- Post-weld heat treatment validation in energy and aerospace industries
- Life extension studies for critical welded structures
Case Study
A professional technical service company used PMA-1010 for periodic inspection of pressure vessels, achieving accurate stress data for safety assessments. The instrument's ability to analyze multi-pass welds improved the efficiency of their inspections.
FAQ
Q: How does it evaluate stress in multi-pass welds?
It measures stress relief effects layer by layer, allowing you to assess each pass's contribution without cutting the weld.
Q: Does the indentation affect the weld?
No, the indentation depth is only 60–120 μm, which is a few microns, and does not impact subsequent NDT.
Q: Can it measure both longitudinal and transverse stresses?
Yes, it simultaneously measures both directions, providing a complete stress field evaluation.
Q: Is it suitable for on-site use?
Absolutely, it is portable and one-person operable, ideal for complex sites like high-altitude or remote areas.
Q: What power options does it support?
It supports both 220V wired and 24V wireless power, giving flexibility in the field.
Q: Is it safe to operate?
Yes, it poses no ionizing radiation risks, making it safe for operators.
Inquiry Information
For orders or queries, contact Vincent Zhang at vincent_zhang@zhanghuayaoji.com or +86 181-1890-2332.
Image Suggestions
Images illustrating multi-pass weld analysis, close-ups of indentation points, operator using device in field. Alt text should be descriptive.
