bimetalliliuskoja

Bimetalliliuskoja, also known as bimetallic strips, are a type of temperature-sensitive device constructed from two different metals with distinct thermal expansion coefficients. These metals are bonded together, typically by riveting, brazing, or welding, along their entire length. When the temperature changes, the two metals expand or contract at different rates. This differential expansion causes the strip to bend. The metal with the higher coefficient of thermal expansion will expand more and be on the outer curve of the bend, while the metal with the lower coefficient will be on the inner curve.

The degree of bending is directly proportional to the temperature change and the difference in the thermal expansion coefficients of the two metals. This property makes bimetallic strips useful in a variety of applications where a mechanical response to temperature fluctuations is required.

Common uses for bimetallic strips include thermal switches, thermostats, circuit breakers, and temperature gauges. In thermostats, the bending of the strip can activate or deactivate electrical contacts, controlling heating or cooling systems. In circuit breakers, the strip is designed to bend and trip a mechanism when excessive current causes it to heat up, thus protecting electrical circuits from damage. Their simple construction, reliability, and relatively low cost have made them a staple in many temperature-sensing and control devices for decades.