国家/地区 中国（7）
IPC部 C（7）
IPC大类 C25（7）
IPC小类 C25D（7）
IPC C25D003/56（3） C25D005/14（3） C25D005/48（3）
C23C028/00（2） C25D003/12（2） C25D007/00（2）
发明人 GUO C（7）
公开年 2023（7）
申请年 2022（5）  2020（2） 
专利权人 GUANGZHOU UL.（7）

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

Neodymium-iron-boron zinc-plated nickel alloy and plating layer structure of graphene, has citrate pre-plating nickel layer prepared from inside to outside of substrate, and trivalent chromium blue passivation layer and graphene sealing layer.

DENG Y, LAI H, GUO C, CHEN M

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

Plating layer structure of zinc-nickel alloy plating layer without chromium passivation and hydroxyl graphene, has chromium-free passivation layer prepared by silane passivation agent.

LAI H, CHEN K, GUO C

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 neodymium-iron-boron coating graphene used in e.g. computer, comprises base body, citrate pre-plating nickel layer and graphene electrophoresis paint coating layer prepared from inside to outside base body.

FENG L, PENG C, LAI H, GUO C

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

LUO X, PENG C, GUO C, LAI H