SAIC

In the whole lifecycle management of industrial equipme […]

There are many details involved in maintaining thermal shock test chambers, but a few key points must be diligently followed by operators to ensure the equipment’s longevity.

Cold and thermal shock test chamber on the market is divided into two categories, a two-compartment type, including high-temperature region and low-temperature region, the test object were in two different temperatures in the area of the test, hot and cold alternating test; the other is a three-compartment type, in addition to high-temperature and low-temperature areas, there is also a test area, and the two-compartment different is that the three-compartment does not need to be directly in the test area for the test, only need to be through the air compression method

A constant temperature and humidity test chamber consists of multiple components, and any malfunction can disrupt testing. Previously, we discussed troubleshooting methods for other issues. Today, we focus on expansion valve failures.

The high-low temperature test chamber is the cornerstone of environmental reliability testing. Its cooling rate dictates test duration and data validity. Field data from 500+ chambers over ten years show that “slow cooling” accounts for 38 % of all malfunctions, second only to “no cooling”.