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发明公开
CN1852653A 一种复合电磁屏蔽材料及其制造方法 失效 - 权利终止 转让

一种复合电磁屏蔽材料及其制造方法
摘要：
本发明属于磁性功能材料领域，涉及一种新型电磁屏蔽材料及其制造方法。本发明是在软磁材料基体的两个表面电沉积一层金属铜形成复合电磁屏蔽材料。所述软磁材料是用快淬方法制备的纳米晶或非晶带材，厚度在20～40μm之间；基体软磁材料的成分由Fe，Co，Ni，Cu，Nb，Zr，Hf，Si，B，P中的金属和非金属元素组成，该软磁材料采用单辊或双辊快淬方法制备。而电沉积的双面铜导电层总厚度在1～50μm之间。沉积的金属铜是在含有铜离子的酸性或碱性电解液中，使用直流或交流电源沉积得到。本发明的优点是该复合材料具有优良的电磁屏蔽性能，其屏蔽的频率范围在50Hz－20GHz，屏蔽效能达到80dB以上。
摘要（英）：

The method electrodeposits a layer of copper on two surfaces of basal body in soft magnetic material so as to form composite electromagnetic shielding material. The said soft magnetic material is Nano crystal or non-crystalline belt material with thickness 20-40 mu m prepared through quick quenching method. Components of basal body in soft magnetic material are from Fe,Co,Ni,Cu,Nb,Zr,Hf,Si,B,P. The soft magnetic material is prepared by using quick quenching method through single roller or double rollers. Total thickness of the said copper layer is 1-50 mu m. Electrodeposited copper is obtained from acidic or alkaline electrolyte of copper ion by using DC or AC deposition. Advantages are: fine electromagnetic shielding performance, frequency range 50Hz-20GHz, and shielding efficiency higher than 80dB.

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