Bimetal

Bimetal laves ved at valse to forskellige metaller sammen med forskellig varmeudvidelseskoefficient.

Bimetal
De to forskellige metaller har forskellig længdeudvidelseskoefficient. Venstre ved temperatur x - og ved en anden temperatur til højre.

Bimetal strimmel uden hæftning (foroven) - og bimetal strimmel med hæftning. hæftningen kan f.eks. være en svejsning eller svejsninger.
Praktisk anvendelse af bimetalfjeder. Bimetalfjederen er under den hvide plastplade.
Principillustration af en bimetalfjeder som er fæstnet inderst og har en viser yderst.

Bimetal laves ved at valse to forskellige metaller sammen med forskellig varmeudvidelseskoefficient.

Det kan benyttes til kontakter eller spiralformede termometre.

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