国家/地区 中国（4）
IPC部 C（4）
IPC大类 C23（4）
IPC小类 C23C（4）
IPC C25D003/56（4）
发明人 LAI H（4）
公开年
申请年 2019（2） 
专利权人 GUANGZHOU UL.（4）

Dull nickel-plated and graphene-enclosed plating structure for zinc alloy die-casting parts, has zinc-nickel alloy plating layer that is prepared from inside to outside sequentially zinc alloy base portion.

LAI H, CHEN K, GUO C

High corrosion resistance zinc cobalt alloy coating structure of aluminum alloy piece, has trivalent chromium passivation layer and hydroxyl graphene sealing layer which are prepared in turn from inside to outside of substrate.

CHEN M, LAI H, GUO C

Cyanide-free cadmium-titanium alloy and graphene closed plating layer structure for aerospace fastener, comprises metal substrate, non-cyanide cadmium-titanium alloy plating layer, chromate low chrome color passivation layer and nano hydroxyl graphene closed layer.

GUO C, LAI H

Heavy-duty anti-corrosive cadmium cobalt alloy and graphene sealing coating comprises e.g. a metal substrate, a cadmium cobalt alloy plating layer, a passivation layer and a graphene sealing layer formed on the passivation layer.

GUO C, LI X, CHEN K, LAI H