国家/地区 中国（11）
IPC部 B（11）
IPC大类 B22（11）
IPC小类 B22F（11） C23C（11） C22C（8）
H01H（3） C01B（2）
IPC B22F003/10（11）
发明人 WANG J（2） WANG Q（2）
公开年 2022（5） 2021（2）
申请年 2020（3）  2021（3）  2018（2）  2022（2） 
专利权人

Iron-based powder metallurgy material used in various industrial manufacturing fields, comprises iron powder, modified composite powder, nano graphene, cobalt powder, molybdenum powder, and zinc stearate, where modified composite powder is prepared by modifying iron powder with copper.

ZHENG J, LIANG X, LIANG H, WANG P

Titanium carbide-yttrium oxide composite reinforced graphene-coated copper-based contact material comprises titanium carbide, yttrium oxide, tungsten, chromium, molybdenum, and graphene-coated copper.

LIU J, ZHANG Y, CHEN H, YU X, TAO Y, WANG J

Graphene-based silver electrical contact material comprises graphene, and additive including gold, silver, copper, titanium, cadmium oxide, tin(IV) oxide, zinc oxide, nickel, zirconium, tungsten, molybdenum, vanadium, niobium, tantalum, rare earth metals, and/or graphite.

QI J, QI Y, YE H

Rotary supporting gear tooth surface with wear-resistant coating useful in e.g. war industry and new energy applications, comprises gear tooth surface orderly provided with pure metal transition layer and high performance wear-resistant layer, which is composite metal powder layer.

JIN K, DONG Q

Light-weight, high-conductivity slip ring for aerospace, comprises base material and coating covered on base material, where raw material of base material comprises graphene and titanium hydride, and coating raw material comprises lanthanum oxide, tungsten sulfide, carbon nanotubes and silver.

ZHAO D, NI K, ZUO X, ZHANG M, ZHOU Y

Preparation method of copper-based graphene, involves removing copper-based graphene precursor from impurities by solvent separation method, and drying copper-based graphene precursor to form copper-based graphene finished product.

WU G, QIAN T, CAO H, MA Y, SHEN H

Preparation of graphene-enhanced nickel-based nanocomposite powder metallurgy material involves cutting graphite into sheet, nano grinding to obtain nano graphene, adding dispersant, putting into centrifuge, and mixing and blending.

OU B, XU C, WANG Q, XIONG L

Preparing graphene-reinforced alloy composite material comprises e.g. taking graphene oxide aqueous solution, preparing porous graphene colloid, melting the first part alloy to alloy solution, pouring to porous graphene colloid and crushing.

DU B, ZHU X, ZHU Y, LUO K

Preparing a graphene tungsten-copper alloy comprises e.g. providing a first mixture comprising copper powder and optional dispersant, mixing first mixture in reaction furnace, introducing gaseous carbon source material, and reacting.

LIN Z, DAI D, JIANG N, HAN Y, ZHU Z, CHEN B, DING Y, ZHANG Q, WANG Q

Preparing metal-coated graphene reinforced metal-based composite material comprises e.g. carrying out in situ reduction of the surface of powdered graphene coated metal to obtain a metal-coated graphene composite powder and ball-mixing.

FANG D, BAO R, YI J, LI X