Three-Zone Thermal Shock Test Chamber

The chamber includes a high-temperature zone, a low-temperature zone, and a test zone. Instead of transferring the sample between zones, the system switches hot and cold airflow into the test zone, allowing the sample to remain stationary during testing.

Key advantages: stationary sample testing, reduced mechanical transfer impact, stable fixture setup, easier monitoring, better suitability for wired or heavier samples, and repeatable rapid hot-cold shock exposure.

For a thermal shock test chamber, temperature range is only one part of selection. In a three-zone system, test zone response, airflow switching, recovery time, sample load, and monitoring requirements determine whether the chamber can reproduce the required test profile.

Key factors: hot zone range, cold zone range, test zone volume, airflow switching time, recovery time, dwell time, cycle count, test zone uniformity, sample heat load, cable ports, fixture requirements, and data recording.

The chamber is suitable for products that should remain fixed during testing, especially wired, instrumented, heavy, fragile, or monitored samples. It helps expose thermal stress risks that may not appear under steady-state testing or slow temperature cycling.

Typical applications: electronic assemblies, PCBs, semiconductors, automotive ECUs, sensors, connectors, control modules, aerospace components, metals, plastics, rubber, ceramics, composite materials, coatings, adhesives, seals, and packaging materials.

Common risks evaluated: solder joint cracking, PCB warpage, connector contact instability, seal leakage, coating delamination, material brittleness, electrical signal drift, and structural stress in bonded or assembled parts.

SANWOOD designs the chamber with programmable control for hot zone temperature, cold zone temperature, test zone response, airflow switching, dwell time, cycle count, alarms, and optional data recording.

System features: programmable touchscreen controller, multi-step test profiles, hot/cold airflow switching control, optional RS232 / RS485 / Ethernet communication, optional PC monitoring, optional data recording, cable port configuration, high-performance refrigeration system, and safety alarms for abnormal operation.

The chamber can be configured to support test conditions related to IEC 60068-2-14 change of temperature, MIL-STD-810 thermal shock methods, JESD22-A106 thermal shock testing, and customer-specific reliability procedures.

Final compliance depends on the complete test method, sample type, sensor setup, calibration status, airflow switching performance, dwell time, operating procedure, and third-party assessment.

Customization options: hot and cold zone temperature range, test zone volume, airflow switching and recovery performance, sample rack or fixture, cable ports, communication and data recording, refrigeration system configuration, and power supply by destination country.

SANWOOD Technology can provide model selection support, customization guidance, installation assistance, maintenance, repair, and technical service according to project requirements.