Thermal Shock Chambers | Vibration Chambers

A thermal shock chamber is designed to expose devices under test (DUT) to alternating extreme temperatures. This testing method helps identify design flaws caused by sudden hot and cold temperature changes.

Typically, these chambers consist of two vertically stacked units. One chamber generates heat up to 210°C, while the other achieves cold temperatures as low as -75°C. A carrier moves between the two chambers, exposing the DUT to these drastic temperature variations.

Functions Rapid temperature changes can cause products to expand and contract, putting significant stress on their structure. Such conditions can lead to cracks or other damages, revealing defects within the DUT. Environmental stress is a common factor contributing to product failures, and thermal shock testing provides valuable insights during the manufacturing process.

The impact of rapid temperature fluctuations affects nearly every product. Therefore, thermal shock chambers are essential across various industries, including telecommunications, medical, aerospace, automotive, military, pharmaceutical, and energy.

Standards Testing To comply with different testing standards, products must undergo sudden environmental changes. Thermal shock chambers enable manufacturers to simulate these extreme conditions, improving product durability. Common testing standards include:

• MIL-STD-202 Method 107
• MIL-STD-810 Method 503
• MIL-STD-883 Method 1010
• JESD22-A104D

Do I Need a Thermal Shock or Temperature Cycling Chamber? While thermal shock and temperature cycling tests both evaluate a product's response to environmental changes, they serve different purposes. A thermal shock chamber is ideal for immediate temperature changes, making it suitable for products expected to experience sudden weather shifts. Conversely, a temperature cycling chamber gradually alters the temperature over an extended period, simulating more gradual environmental changes.

Choosing the Best Product When selecting the right chamber for your testing needs, consider the following factors:

• Chamber Dimensions and Basket Volume: Ensure the DUT fits comfortably within the chamber. Larger items may require a single compartment chamber, while the carrier basket should accommodate the DUT without affecting the elevator's movement.
• Recovery Time: Fast recovery times enhance test accuracy and efficiency, minimizing the duration of each test.
• Temperature Limits: Ensure the thermal shock tests push the DUT to its limits without exceeding melting points, as a product with a melting point of around 150°C doesn’t need a chamber that reaches 210°C.

With our range of thermal shock chambers, you can enhance the productivity and efficiency of your testing processes. For quotes on thermal shock chamber rentals, contact an Avalon Test Equipment rental agent today. They can assist you in selecting the ideal chamber for your testing requirements.