With the continuous tightening of ingress-protection requirements in automotive electronics, low-voltage power distribution and photovoltaic industries, repeatable, quantifiable and traceable artificial-rain testing has replaced the traditional “splash-and-inspect” approach and become the core means of verifying sealing performance.

Product reliability is no longer governed solely by design rules and manufacturing precision; it is equally decided by a product’s ability to survive sudden climatic extremes. Among all environmental stressors, rapid temperature change is the single most frequent root-cause of field failures in electronic components, automotive assemblies, and aerospace hardware.

Salt-spray corrosion testing is one of the most frequently used and fastest accelerated methods for evaluating the corrosion resistance of materials and their protective coatings. In a test chamber a salt solution is atomized by compressed air into a uniform fog that is continuously or intermittently sprayed onto specimens in a sealed, temperature- and humidity-controlled space.

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”.

The UV-accelerated weathering test chamber is a key item of equipment used to simulate solar radiation and perform accelerated ageing evaluations on materials. Its electrical system must not only drive high-power UV sources but also acquire and control signals for temperature, humidity, spray, etc.

Thermal shock test chambers are indispensable in reliability qualification for electronics, aerospace, and automotive industries. Once the “no-cooling” fault occurs, the test sequence is immediately interrupted and secondary damage to the specimen may follow.

Salt fog (salt spray) chambers are indispensable for evaluating the corrosion resistance of materials and coatings in automotive, aerospace, electronics, hardware, coatings and defense industries.

High-low temperature test chambers are the cornerstone of environmental reliability testing. The quality of their performance directly determines the credibility of product qualification and the length of the R&D cycle.

When anomalies occur during operation, on-site personnel are advised to follow the four-step troubleshooting method “Symptom – Cause – Action – Verification.” Typical faults and their countermeasures are presented below for quick reference.

Dust/sand test chambers are environmental simulation devices designed and manufactured in accordance with GB/T 2423.37, IEC 60068-2-68, ISO 20653 and other international standards. They are used to evaluate the sealing reliability and corrosion resistance of locks, automotive/motorcycle parts, seals, power meters and other products under sandstorm conditions.