Thermal Shock testing

EMC Technologies environmental testing

What is thermal shock testing

Thermal shock testing also called temperature shock testing is the exposure of a product or sample to alternating high and low temperatures. Thermal shock test is to determine if material can withstand sudden changes in the temperature of the surrounding atmosphere without experiencing physical damage or deterioration in performance.Shock testing usually involves a temperature transition between the hot and cold temperature states is rapid, typically greater than 15°C per minute. Alternatively, temperature cycle testing uses a slower temperature transition between high and low temperatures.

Why is testing required

Testing allows for failure analysis with laboratory controlled repeatable simulated temperature change cycles. This test is mandatory for some standards but can also be applied when sudden temperature changes may occur in the intended end environment of use for the product and this helps with quality assurance.

Typical problems that could result from thermal shock exposure

• Shattering of glass vials and optical material.
• Binding or slackening of moving parts.
• Deformation or fracture of components.
• Cracking of surface coatings.
• Leaking of sealed compartments.
• Failure of insulation protection.
• Differential contraction or expansion rates or induced strain rates of dissimilar materials.

Testing at EMC Technologies

Testing can be performed using either a single or multiple chambers for the rapid temperature change i.e. thermal shock testing. Single chambers can be used however multiple (two or more) chambers can produce a quicker rate of change. We selected the two-chamber method for this exact reason, as this allows the most extreme thermal shock profiles to be achieved.

Our engineers can help prepare your test plan and help with determining your testing requirements. We also offer many other product compliance services. Click here to download ‘MIL STD 810 department of defense test method standard: environmental engineering considerations and laboratory tests‘ for free from everyspec.com (external website link).

Get in touch and find out how we can help with your next product compliance approvals. We also offer other environmental product testing services along with EMC, Radio, SAR and electrical safety testing. Contact one of our experts and experience our testing services for yourself.

We do not claim any rights for the embedded YouTube video, all credit to the video publisher. EMC Technologies does not endorse any product(s) associated product(s) or companies featured. The video is informative to explain why companies use testing services.