Patent ID: 9743566
Date: 2017-08-22
CPC Classifications: B21B,B23K,H05K,Y10T

Claim:
1. A method for manufacturing a clad type electromagnetic shielding material, comprising the following steps of: providing a first electrically conductive metallic layer, a magnetically conductive metallic layer, a second electrically conductive metallic layer and a shock-absorbing insulation layer, wherein the shock-absorbing insulation layer has a binder located on a surface of the shock-absorbing insulation layer; and one-time continuously rolling the first electrically conductive metallic layer, the magnetically conductive metallic layer, the second electrically conductive metallic layer and the shock-absorbing insulation layer, which are flexible and stacked in order, by a clad type rolling process, so as to finish a clad plate, wherein the surface of the shock-absorbing insulation layer provided with the binder faces the second electrically conductive metallic layer, wherein a precision of a rotational speed of rollers is ±1 rpm in the clad type rolling process, whereby a flatness of the clad plate is 8 I-UNIT.