公开(公告)号：US20230358442A1

公开(公告)日：2023-11-09

申请号：US18354871

申请日：2023-07-19

申请人： Qingdao University of Technology

发明人： Sen LIANG ,  Ruijun SUN ,  Qinglun CHE ,  Long WU

IPC分类号： F24H9/14 ,  F24H9/00 ,  F24H1/18

CPC分类号： F24H9/14 ,  F24H9/0005 ,  F24H1/181

摘要： A tooling and method for flexible through connection of a double-liner water heater. The tooling includes a transition shaft, a tooling connecting plate and a fastening screw. The method includes: allowing a shaft head of the transition shaft to be in fit with an inner surface of an outer flange of a lower liner for welding; allowing an end hole to be in fit with an outer surface of an inner flange of an upper liner for welding; after welding seams are cooled, removing the tooling, and enameling the upper and liners; forming through-flexible connection between the inner and outer flanges; and firmly fitting the upper and lower liners together with two steel strips to ensure that a gap between the upper and lower liners is not greater than 7 mm.

公开(公告)号：US20220340834A1

公开(公告)日：2022-10-27

申请号：US17421219

申请日：2020-07-21

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY

发明人： Qinglun CHE ,  Jianjun ZHANG ,  Sen LIANG ,  Ning CUI ,  Binjiang LV ,  Yang XU ,  Xinghua MA

IPC分类号： C10M173/02 ,  C10M171/06 ,  C10M125/02 ,  C10M125/22 ,  C10M125/10 ,  C10M149/22 ,  C10M161/00 ,  C10M169/04

摘要： A super-lubricity water lubricating additive, a super-lubricity water lubricant, a preparation method and application, wherein the additive is of a hollow spherical shell structure which includes at least one layer of spherical shell; the spherical shell sequentially includes a first polydopamine layer, a nanoparticle layer, a second polydopamine layer and an oxidized graphene layer from inside to outside, or a first polydopamine layer, a nanoparticle layer, a second polydopamine layer, a graphene layer and a third polydopamine layer from inside to outside; and nanoparticles of the nanoparticle layer are nano diamond, nano molybdenum disulfide or nano tungsten disulfide. The additive is prepared into a uniform aqueous solution to obtain the super-lubricity water lubricant. The additive can be easily adsorbed on a dual surface, and the nanoparticles released in a friction process cooperate with spherical oxidized graphene or graphene to form rolling friction so as to reduce frictional abrasion.