公开(公告)号：US11485055B2

公开(公告)日：2022-11-01

申请号：US16985591

申请日：2020-08-05

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Sen Liang ,  Gongxian Yang ,  Yunpeng Yan ,  Guanghe Wang

IPC: B29C41/00 ,  B29C33/58 ,  B29C41/04 ,  B29C41/22 ,  B29C41/46 ,  C08J5/00 ,  B29K63/00 ,  B29K105/12 ,  B29L9/00

Abstract: A molding process of a co-cured short-fiber resin-based damping composite material and a molding part. Different from a traditional centrifugal processing process of a thin-walled tube of a resin-based composite material, the process uses raw materials including three kinds of materials with different densities and including two kinds of short-fiber epoxy resin with different densities and a damping material. During centrifugal molding, the three kinds of materials are made into fluids to be respectively injected at a uniform speed in three times according to the sizes of the densities. Layering is performed by using different centrifugal forces applied to the three kinds of materials. Co-curing is performed according to a resin curing process after the three kinds of materials are stably distributed, and a tubular thin-walled part of the embedded co-cured short-fiber resin-based damping composite material with a uniform wall thickness is obtained.

公开(公告)号：US11541627B2

公开(公告)日：2023-01-03

申请号：US16734308

申请日：2020-01-04

Applicant: Qingdao University of Technology

Inventor： Sen Liang ,  Xinle Chen ,  Changsheng Zheng ,  Lihua Yuan

IPC: B32B5/10 ,  B32B27/38 ,  B32B25/10 ,  B29B11/04 ,  B29B11/16 ,  H05K9/00

Abstract: Disclosed are an embedded co-cured composite material with large-damping and electromagnetic wave absorbing properties and a preparation method and an application thereof, belonging to damping composite materials. The embedded co-cured composite material is formed by interlacing a plurality of electromagnetic wave absorbing prepreg layers and a plurality of electromagnetic wave absorbing damping layers. Each of the electromagnetic wave absorbing prepregs layers includes a fiber cloth, a micro-nano electromagnetic wave absorbing material and a resin. Contents of the micro-nano electromagnetic wave absorbing material in the electromagnetic wave absorbing prepreg layers and the electromagnetic wave absorbing damping layers have a gradient increase or decrease according to a sequence of the electromagnetic wave absorbing prepreg layers. Each of the electromagnetic wave absorbing damping layers includes a viscoelastic damping material and the micro-nano electromagnetic wave absorbing material.

公开(公告)号：US11422011B2

公开(公告)日：2022-08-23

申请号：US17019950

申请日：2020-09-14

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Sen Liang ,  Yunpeng Yan ,  Guanghe Wang ,  Gongxian Yang

IPC: G01D5/353 ,  G02B6/35 ,  G02B26/08

Abstract: Two photoelectric circuit sets each have a light source, two light switches, optical fibers, photoelectric sensor and computer. The light source emits visible light to the first switch, which is continuously deflected and reflected by a torsional micro-mirror. The light respectively irradiates each of the optical fibers in a composite material optical fiber prepreg layer. If the material is normal, the optical fiber is not damaged, the visible light passes through the optical fiber and irradiates the second switch, and is continuously deflected and reflected by a second torsional micro-mirror, the light irradiates the photoelectric sensor. The sensor outputs an electric signal to the computer. If the material is damaged, the optical fiber here is damaged, another corresponding optical fiber path at an intersection point is also damaged without electric signal output. The computer gives breaking position coordinates at the intersection point of two paths of optical fiber arrays.

公开(公告)号：US11307112B2

公开(公告)日：2022-04-19

申请号：US16988307

申请日：2020-08-07

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Sen Liang ,  Guanghe Wang ,  Yunpeng Yan ,  Gongxian Yang

IPC: G01M1/02

Abstract: A simply-supported fixture for a circular plate, including: an opening end cover, circular sleeve, base, and semicircular-ring convex platform. The base has a positioning step for guidance, the circular sleeve is concentrically installed on the step of the base, and the opening end cover is concentrically installed on the circular sleeve and connects to the base through a reaming hole bolt. A circular plate disposed between the opening end cover and base, and opposite sides of the opening end cover and base are provided with concave platforms. Two semicircular-ring convex platforms of the same diameter are concentrically installed on the concave platforms, the reaming hole bolt is tightened with force, and the circular plate is supported and fixed on the fixture. The circular plate and the semicircular-ring convex platform on the opening end cover and base, are in line contact wherein lines are parallel and concentric having the same radius.

公开(公告)号：US11685877B2

公开(公告)日：2023-06-27

申请号：US17421219

申请日：2020-07-21

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Qinglun Che ,  Jianjun Zhang ,  Sen Liang ,  Ning Cui ,  Binjiang Lv ,  Yang Xu ,  Xinghua Ma

IPC: C10M173/02 ,  C10M125/02 ,  C10M161/00 ,  C10N20/06 ,  C10N30/06

CPC classification number: C10M173/02 ,  C10M125/02 ,  C10M161/00 ,  C10M2201/02 ,  C10M2201/041 ,  C10M2201/062 ,  C10M2201/066 ,  C10M2217/046 ,  C10N2020/06 ,  C10N2030/06

Abstract: 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.

公开(公告)号：US11673181B2

公开(公告)日：2023-06-13

申请号：US16746025

申请日：2020-01-17

Applicant: Qingdao University of Technology

Inventor： Sen Liang ,  Xinle Chen ,  Guangming An

IPC: B21J11/00 ,  B30B15/00 ,  B21J9/18

CPC classification number: B21J11/00 ,  B21J9/18 ,  B30B15/007 ,  B30B15/0029 ,  B30B15/0035 ,  Y10T29/4978

Abstract: The present invention discloses a device and method for installing and adjusting a sliding block of a multipoint crank press. The device comprises a crank, a connecting rod with an end provided with a U-shaped notch, a sliding block and an eccentric pin shaft micro-adjustment mechanism. The eccentric pin shaft micro-adjustment mechanism is installed at the joint between the connecting rod and the sliding block. The crank, the connecting rod and the sliding block of the multipoint press are normally machined and installed through a classical process, so that the sliding block of the multipoint press runs to a bottom dead center. A gap among mechanisms is eliminated through the loading by a hydraulic loader. The position of one set of crank, connecting rod and sliding block mechanism is taken as a reference, and then the eccentric positions and directions of the eccentric pin shafts at other adjustment positions are finely adjusted, thus realizing high-precision assembly and operation of the multipoint press.