国家/地区 中国（3）
IPC部 B（4）
IPC大类 B21（4）
IPC小类 C21D（4）
IPC C21D006/00（4）
发明人
公开年 2023（2）
申请年 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-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

Hybrid cutting fluid comprises mixture of semi-synthetic vegetable-based fluid and solid particles which are combined with specific conditions of concentration of multilayer graphene particles, grinding wheel, flow and cutting conditions.

BATISTA DA SILVA R, SOUZA ABRAO B