The Definition and Operating Principle of Bimetals
Bimetal is bonding by two or more different expansion coefficients metal or alloy, whose shape changes at changing temperature.
The Classification of Bimetals
Classified by Temperature
1) High Temperature
such as FPA223-70, FPA206-70, FPA258-70, FPA206-9, etc.
2) Medium Temperature
such as FPA223-80, FPA206-78, etc.
3) Low Temperature
such as FPA721-110, FPA721-140, etc.
2.Classified by Heat Reactive
1) High-sensitive (Flexivity>30×10-6 /°C): FPA721 series
2) Medium-sensitive ( Flexivity is at the range of 15
30×10-6/°C): FPA 206 series, FPA 223 series, etc.
3) Low-sensitive (Flexivity <15×10 -6/°C): FPA982-2, FPA258-60,etc.
3.Classified by Resistance:
1) Low-Resistance series: FPA721-5, FPA982-2, FPA206-3, FPA982-4 etc.
2)Medium-Resistance series: FPA223-25, FPA223-35, FPA721-20, FPA721-40 etc.
3)High-Resistance series: FPA721-140, FPA721-110, FPA23-93, FPA223-110 etc.