Reliability and durability testing

Test Background

During long-term operation, liquid cooling plates need to withstand alternating stresses such as thermal shock, pressure pulses, and vibration shocks. Reliability testing can detect the risk of fatigue failure in advance to ensure a 10-year service life.

Test Introduction

Through thermal shock, pressure pulse cycle, and vibration shock tests, the temperature, pressure, and mechanical stress that the liquid cooling plate will bear during its entire life cycle are simulated to verify its structural durability and performance stability.

Testing Objectives

Verify the structural integrity and sealing performance under thermal cycling

Evaluate the fatigue impact of pressure pulses on welds and flow channels

Ensure the anti-vibration and anti-shock ability during transportation and operation

Predict the service life and failure mode of liquid cooling plates

Test Standards

T/CESA 1249.1-2023 Cold plate technical specification

IEC 60068-2-14 Temperature change test

ISO 6803 Pressure pulse test

GB/T 2423 Vibration and shock test

Applicable Products/Fields

Suitable for scenarios requiring long-term reliable operation, such as AI servers, vehicle-mounted liquid cooling, and industrial frequency converters.

Test Content

Thermal shock test: Temperature cycling from -40°C to 85°C, 500 cycles

Pressure pulse test: 0 to 1.5 times the working pressure, 100,000 cycles

Vibration test: Random vibration from 5 to 2000 Hz, 20g

Shock test: Half-sine wave, 50g, 11ms

Project Advantages

Capable of applying combined temperature and pressure stresses simultaneously

Real-time monitoring of leakage and pressure drop changes during testing

Provides fatigue life curves and failure analysis

Laboratory Configuration

High and low temperature shock test chamber (two-chamber method)

Pressure pulse test bench (0~5MPa, programmable waveform)

Electromagnetic vibration test system

Impact test table

FAQ
Q: Why is the pressure pulse test performed 100,000 times?
A: To simulate pressure fluctuations such as system start-stop and load changes, 100,000 cycles can cover a service life of more than 10 years.