Reliability test

Test Background

The liquid cooling system needs to operate continuously for a long time. The training cycle of large AI models can last from several weeks to several months. The system may experience performance degradation, leakage, or failure under the stress of thermal cycling, vibration and shock, and long-term aging. Reliability verification is the key to ensuring the continuous operation of the data center.

Test Introduction

The reliability test simulates the performance stability of the system under extreme environments and long-term use through thermal cycling, vibration and shock, accelerated aging, and long-term operation tests, and verifies the structural integrity, sealing reliability, and functional durability.

Testing Objectives

Verify the structural stability of the system in a temperature-changing environment

Evaluate the vibration and shock resistance ability under mechanical stress

Accelerated aging test to predict the system life

Ensure no performance degradation and leakage during long-term operation

Test Standards

IEC 60068-2 Environmental test series standards

GB/T 2423 Environmental testing for electric and electronic products

YD/T 3979-2021 Technical requirements and test methods for immersion liquid-cooled server systems in data centers

Applicable Products/Related Fields

Suitable for scenarios with high reliability requirements such as data center liquid-cooling systems, AI servers, edge computing nodes, and outdoor cabinets.

Test Content

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

Vibration and shock test: Random vibration from 5 to 2000 Hz, 20 g; Half-sine wave shock 50 g

Accelerated aging test: Operate at high temperature and high humidity (85°C/85%RH) for 2000 hours

Long-term operation test: Continuously operate under rated conditions for 1000 hours

Project Advantages

Capable of simulating the full-process mechanical stress of actual transportation, installation and operation

Conducts accelerated aging under combined stress coupled with temperature and humidity environment

Provides life prediction and failure analysis reports

Laboratory Configuration

High and low temperature alternating test chamber (-70°C~150°C)

Electromagnetic vibration test system (maximum acceleration 50g)

Impact test bench (semi-sine wave adjustable)

Long-term operation monitoring platform

FAQ
Q: How to convert the results of the accelerated aging test into the actual service life?
A: According to the Arrhenius model, high-temperature accelerated aging can be converted into the equivalent operating time at normal temperature. Usually, operating at 85°C/85%RH for 1000 hours corresponds to a service life of 5-10 years at normal temperature.