Bimetal contact buttons can be supplied in a large varitey of configurations and combinations of materials, The material of the working layer may be Ag,AgCdO or AgNi,Forthe side to be welded to the support material steel or Cu-Ni alloy can be used,The thickness of top working layer is within half of the top layer thickness .In the standard design the contactbuttons have 3,5or7 spherical projections,Other numbers of projections and shapes of the projections,however,are also possible


Bimetal Rivets: Ag.FAg.AgNi.AgCdO.AgSnO2.AgSnO2In2O3.AgZnO.AgCu.CuNi.Cu

Standard Shapes   

Standard Dimensios

Shank Diameter
Head Diameter
  2.5 3 3.5 4 4.5 5 5.5 6 7 8  
Φ1.2                     0.6~1.5
Φ1.5                     0.8~2.0
Φ1.65                     0.8~2.0
Φ1.8                     1.0~2.5
Φ2.0                     1.0~2.5
Φ2.35                     1.5~3.5
Φ2.5                     1.5~3.5
Φ3.0                     1.5~5.0
Φ3.5                     2.0~5.0
Φ4.0                     2.0~5.0


Head Diameter Head Thickness Shank Length Shank Diameter Silver Layer Thickness Angle Spherical Radius
±0.10 ±0.05 ±0.15
-0.12 S≤0.4: 0.04 ±0.2° ±0.2R
S>0.4:  0

Application Scope

Bimetal contact buttons are used by means of the impulse welding technique.Components produced by this method are utilized,e,g,.in temerature controllers or small power relays.
Differnt series,type and sizes of products can be delivered according to customers requirements.