国家/地区 中国（5）
IPC部 B（6）
IPC大类 B21（6）
IPC小类 C21D（6）
IPC C22F001/08（4） C22C009/00（3） B21C037/04（2）
C21D009/52（2） C22C001/02（2）
发明人
公开年 2021（6）
申请年 2021（6）
专利权人

Method for manufacturing coil spring, involves supplying circularly wound steel wire in straight line, where steel wire is transferred by multiple transfer rollers, and protective film is coated on surface of heat-treated spring.

CHO H, CHOHYUNJUN

Method for preparing high-strength and high-conductivity copper/graphene composite material, involves conducting electrical and thermal conductivity, tensile properties and other tests on rolled clad sheet and heat-treated clad sheet, and comparing and observing microstructures.

YI Y, WANG G, ZHANG S, YU H, ZHANG X, JIANG Q

Preparation of graphene copper wire includes ball milling graphene oxide powder and oxygen-free copper powder to obtain mixed powder, hot-press sintering mixed powder, mixing with oxygen-free copper powder to obtain graphene copper sintered body, annealing graphene copper wire and winding.

YANG Z

Preparation of copper infiltrated wire involves mixing nickel, manganese, iron, zinc, and copper, adding mixture into vacuum melting furnace, molding alloy solution, forging and turning alloy ingots in electric furnace, hot rolling alloy bars into discs, drawing disc, and cutting alloy wire.

ZHOU B, TIAN D, GUO C, SUN J, WANG Q, LIU X, GOU S, LIU Q, LIANG X

High-strength alloy plate comprises nickel, silicon, molybdenum, lithium, magnesium, yttrium, platinum, rhenium, bismuth, tellurium, zirconium, and copper.

GE P, GUO D, HE W

Nano lubricating method for improving corrugated roller hot rolled metal plate surface quality, involves carrying out heat treatment to single layer or composite metal plate obtained by rolling, straightening, trimming, and segmenting.

ZHAO J, MA L, MA X, WANG C, HUANG Q