国家/地区 中国（4）
IPC部 C（4）
IPC大类 C23（4） C25（4）
IPC小类 C23C（4）
IPC C23C028/00（4）
发明人 GUO C（2） LAI H（2）
公开年 2023（4）
申请年 2022（3） 
专利权人 GUANGZHOU UL.（2）

Plating layer structure for preparing chromium-free black conversion film, comprises metal substrate, and zinc-iron alloy plating layer sequentially from inside to outside on metal substrate.

LAI H, GUO C, LI X

Copper foil graphite sheet comprises copper foil, graphene layer continuously deposited on copper foil surface, and nickel-plated layer which is distributed in non-continuous island shape between copper foil and graphene.

CHEN S, CAO F, WANG B

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

Method for forming copper-oxidation graphene laminated composite material for use in radiating field and electronic industry, involves forming copper-oxidation graphene laminated composite material with high thermal conductivity.

ZHAO B, YANG Q, ZHOU L, CAO J, WANG W, LI F, ZHAN K