SAIC

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.

By subjecting products to various temperature environments—such as high temperature, low temperature, and alternating humidity—constant temperature and humidity test chambers can evaluate the heat resistance, cold resistance, dryness resistance, and moisture resistance of materials under different climatic conditions.

With the continuous updating of GB/T 4208-2017, IEC 60529:2013, MIL-STD-810H and other domestic and international protection-class standards, “rain testing” has evolved from a simple “water-proof check” into a systematic evaluation covering sealing reliability, material weatherability, structural integrity, electronic compatibility and more.

Salt spray testing is an essential method for evaluating the corrosion resistance of metal products, electronic components, and other items. By simulating a highly corrosive environment with a salt spray test chamber, companies can identify potential issues that may arise under harsh conditions.

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.