国家/地区 中国（3）
IPC部 C（3）
IPC大类 C23（3）
IPC小类 C23C（3）
IPC C23C018/31（3）
发明人 GUO C（3） LAI H（3）
公开年 2021（3）
申请年 2021（3）
专利权人 GUANGZHOU UL.（2）

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

Protective layer structure for chemical nickel plating of aviation electric appliance accessory, comprises aluminum alloy base body, and chemical zinc depositing layer, pre-plating copper layer, and graphene sealing layer.

XIA L, GUO C, LAI H

Coating structure for aging-resistant zinc-nickel alloy silane-free passivation, comprises aluminum alloy substrate, and chemical deposition zinc layer, chemical nickel plating layer, and silane chromium free passivation layer.

CHEN J, GUO C, LAI H