Creep Stress Relaxation Tester

Creep Stress Relaxation Tester: Precision Analysis for Material Deformation Characteristics

 

The Creep Stress Relaxation Tester is a sophisticated instrument designed to evaluate the creep and stress relaxation properties of materials by subjecting specimens to controlled mechanical forces. Its core functionality lies in applying a constant force to stretch or compress specimens at room temperature, maintaining that force for a specified duration, and measuring the resulting deformation over time. This process reveals how materials respond to sustained stress—whether they gradually deform (creep) or lose their ability to resist force (stress relaxation)—providing critical insights for industries reliant on material durability, such as manufacturing, construction, and aerospace.

Product Features

Servo-Driven Loading System
Equipped with a precision servo motor, the tester delivers automatic, highly controlled load application. This technology ensures that forces are applied smoothly and consistently, eliminating the variability associated with manual loading. Whether stretching or compressing specimens, the servo-driven system maintains the preset force with minimal drift, even during extended test durations—critical for accurate creep and stress relaxation measurements.

 

Rigid Structural Design
Built with an aluminum and stainless steel cast gantry frame, the tester offers exceptional stability and rigidity. This robust construction minimizes vibration and deflection during testing, ensuring that measurements of displacement and force are not compromised by external factors. The frame’s durability also allows the tester to withstand repeated use in high-throughput laboratory or production environments, making it a reliable long-term investment.

 

Advanced Data Management
The tester features integrated data processing capabilities that automatically generate and store test result curves. These curves visualize deformation over time, allowing operators to analyze creep rates or stress relaxation trends at a glance. Results can be exported in multiple formats (e.g., Excel, PDF) via USB or network connections, facilitating further analysis, report generation, and compliance documentation. This streamlined data workflow reduces manual effort and ensures data integrity, particularly valuable for regulatory or quality control purposes.

 

Programmable Test Modes
Versatility is a key strength of this tester, with support for multiple programmable modes to suit diverse testing needs:

 

  • Fixed Load: Applies a constant force to measure creep deformation.
  • Position Control: Maintains a fixed displacement to evaluate stress relaxation.
  • Variable Displacement/Load: Allows custom force or displacement profiles to simulate real-world stress scenarios.
  • Long-Term Timed Operation: Enables extended tests (hours, days, or weeks) to assess material behavior over prolonged exposure to stress.

 

This flexibility makes the tester suitable for testing a wide range of materials, from polymers and metals to composites, adapting to both standard protocols and custom research requirements.

Technical Parameters

 

These parameters highlight the tester’s precision and versatility: a displacement accuracy of 0.001mm ensures that even minute deformations are captured, while a 400mm stroke accommodates specimens of varying sizes. The 500N load capacity (with customization options) allows testing of both delicate materials (e.g., thin polymers) and more robust ones (e.g., metal alloys). The PLC and HMI touchscreen control system simplifies operation, with intuitive interfaces for setting parameters, monitoring real-time data, and adjusting test conditions.

Application Fields

The Creep Stress Relaxation Tester is indispensable across industries where material performance under sustained stress is critical:

 

  • Automotive Manufacturing: Evaluating rubber gaskets, plastic components, and metal fasteners to ensure they resist creep in high-stress areas like engines or chassis.
  • Aerospace and Defense: Testing composite materials, adhesives, and structural components for long-term stability under constant loads during flight.
  • Construction: Assessing building materials such as concrete, polymers, and metal reinforcements to prevent creep-related structural failures.
  • Medical Devices: Analyzing biocompatible materials (e.g., implantable polymers) to ensure they maintain shape and functionality over extended periods in the body.
  • Packaging: Evaluating plastic films and seals to ensure they resist deformation under sustained pressure, preserving product integrity.

Conclusion

The Creep Stress Relaxation Tester combines advanced servo technology, rigid construction, and programmable flexibility to deliver accurate, reliable data on material deformation and stress relaxation. Its ability to simulate real-world conditions, coupled with precise measurement capabilities, makes it an essential tool for quality control, research and development, and compliance testing. Whether used to optimize material formulations, validate product durability, or advance scientific understanding of material behavior, this tester provides the insights needed to engineer safer, more reliable products across diverse industries.

Creep Stress Relaxation Tester applies a constant force to stretch or compress specimens at room temperature, maintaining the force for a specified duration to measure deformation and assess material creep characteristics.

Product Features

  • Servo-Driven Loading: Automatic load application via precision servo motor.
  • Rigid Structure: Aluminum/stainless steel cast gantry frame for stability.
  • Data Management: Exportable test result curves with integrated data processing.
  • Programmable Modes: Supports fixed load, position control, variable displacement/load, and long-term timed operation.

Technical Parameters

  • Control System: PLC programmable controller + HMI color LCD touchscreen
  • Test Modes: Creep test, stress relaxation test
  • Load Capacity: 500N (customizable capacities available)
  • Stroke (Fixture Distance): 0–400mm
  • Displacement Accuracy: 0.001mm
  • Loading Speed: 500mm/min
  • Dimensions: 1350×500×1700mm (W×D×H)
  • Power Supply: AC220V, 50/60Hz

 

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