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When heated, the components expand to different extents, causing the thermal bimetal to bend. The greater the difference in thermal expansion between the two components, the greater the curvature.
In practical use, external forces often prevent the thermal bimetal from deflecting freely. The partially or completely prevented deflection creates a corresponding force. In this way, thermal bimetal can store energy and release it in a controlled manner.
G.RAU produces grades with the greatest thermal sensitivity or with a defined electrical resistance. Our delivery program also includes thermal bimetals with very good corrosion resistance and high thermal application limits. In addition to the thermal bimetals standardized according to DIN 1715, numerous special thermal bimetals are produced at G.RAU.
A galvanic coating of the strips is also possible to protect against corrosion and improve weldability.
G.RAU supplies you with the tapes and strips in the standardized thickness range from 0.08 mm to 2 mm and widths between 1 mm and 150 mm. Special sizes are also available. The tolerances depend on the dimensions, with the smallest tolerance for the width being + 0.1 mm and for the thickness ± 0.002 mm.
Our employees will be happy to support you in selecting the appropriate thermal bimetal type.
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Technical specifications thermal bimetals (PDF)
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