国家/地区 中国（4）
IPC部 C（4）
IPC大类 C25（4） C23（2）
IPC小类 C25D（4）
IPC C25D003/12（4）
发明人 GUO C（4）
公开年 2021（2） 2023（2）
申请年 2021（2） 
专利权人 GUANGZHOU UL.（3）

Neodymium-iron-boron plating trivalent black chromium and plating layer structure of graphene, has citrate pre-plating nickel layer that is prepared from inside to outside sequentially of substrate, and graphene sealing layer.

PENG C, LAI H, GUO C, LI X

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

Protective layer structure of pearl copper coating coated with hydroxyl graphene electrophoretic paint, comprises steel base body from inside to outside orderly preparing watt nickel plating layer.

CHEN J, GUO C, LAI H

Zinc-cadmium alloy composite coating for aerospace electrical component, comprises chemically deposited zinc layer, nickel plating layer, zinc-cadmium alloy plating layer, silane chromium-free passivation layer and graphene sealing layer, which are arranged on surface of aluminum alloy substrate.

LAI H, GUO C, CHEN M, XIA L