国家/地区 中国（5）
IPC部 B（5）
IPC大类 C21（5） C22（5） B21（3）
B22（2） C09（2）
IPC小类 C21D（5）
IPC C21D006/00（5）
发明人
公开年 2022（2） 2023（2）
申请年 2021（2）  2022（2） 
专利权人

Corrosion-resistant stainless steel pipe comprises pipe body and anti-corrosion coating applied on surface of pipe body, where pipe body comprises carbon, titanium, niobium, chromium, molybdenum, iron and rare earth element including rare earth oxide modified by nano-silicon carbide.

LI J, XIANG L, WANG J

Manufacturing high strength alloy steel bolt comprises taking steel for bolt, performing extrusion, hot upsetting, heat treatment and thread machining to obtain bolt blank, and performing galvanizing and zinc-aluminum coating into bolt blank.

ZHOU H

High strength conversion flange comprises steel material having carbon, silicon, manganese, chromium, nickel, molybdenum, gallalium, Rhenium, zirconium, lutetium, and strontium.

MENG K

Method for preparing graphene composite 18Ni-300 anti-friction metal material based on selective laser melting (SLM) technology, involves subjecting anti-friction metal material formed to aging treatment to obtain finished graphene composite anti-friction metal material.

WANG R, LIU W, ZHAO W, LU Y, WANG Q, OU B

High-temperature corrosion-resistant steel used for pipelines, comprises carbon, silicon, manganese, nickel, chromium, molybdenum, nitrogen, tungsten, sulfur, phosphorus, neodymium, gadolinium, yttrium and iron.

ZHANG X, DU F, LI L