Patents by Inventor Haihui ZHU

Haihui ZHU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11958919
    Abstract: The present invention provides a “living” radical polymerization method for a vinyl monomer by near-infrared photothermal conversion. The method comprises irradiating a reactor with near-infrared light of 750-850 nm, wherein the reactor has a first chamber and a second chamber that are isolated from each other, the first chamber contains an organic solution of a near-infrared light responsive croconaine dye, and the second chamber is provided with a closed reaction flask containing a reaction solution, the reaction solution comprises a vinyl monomer, two or more of an ATRP initiator, an ATRP ligand, an ATRP catalyst, an RAFT reagent, a thermal initiator, and an additive, and an organic solvent; and the near-infrared light responsive dye converts the near-infrared light into heat energy, by which the reactor is heated to 50-100° C. to polymerize the monomer in the reaction solution, to obtain polymers with controlled molecular weights and molecular weight distributions.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: April 16, 2024
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Lifen Zhang, Qun Gao, Zhenping Cheng, Kai Tu, Haihui Li, Lan Yao, Xiulin Zhu
  • Patent number: 11897219
    Abstract: An impact forming device and method for local small features on a metal thin-walled curved-surface part. The impact forming device includes impact forming dies, impact loading units and a forming supporting die, wherein the impact forming die is provided with an impact forming part, and the impact forming part is a convex part corresponding to a local small feature; the forming supporting die can support and fix a metal thin-walled curved-surface part without forming local small features, and the forming supporting die is provided with concave parts matched with the impact forming parts; and the impact loading unit includes a guide rail, an explosive ball and a detonating block, under the impact loading of the impact loading units, the impact forming parts can impact the metal thin-walled curved-surface part without forming local small features under the matching action of the concave parts to form the local small features.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: February 13, 2024
    Assignee: Dalian University of Technology
    Inventors: Zhubin He, Haihui Zhu
  • Publication number: 20230084149
    Abstract: A forming method of a deep cavity thin-walled metal component with extremely small fillet radius is provided. In the forming method of a deep cavity thin-walled metal component with extremely small fillet radius, a global cavity is formed by deep drawing by means of a rigid die, an extremely small fillet is formed by means of a extrusion/pushing die, so that the deep drawing process is independent of the extremely small fillet forming process, and the problems of wrinkling, cracking and the like in the process of forming the two simultaneously are avoided. Thus, the problem that the extremely small fillet is difficult or impossible to form can be solved.
    Type: Application
    Filed: December 15, 2021
    Publication date: March 16, 2023
    Inventors: Haihui ZHU, Hang YUAN, Zhubin HE, Shijian YUAN
  • Publication number: 20230003069
    Abstract: A damper with hidden rail, comprising a shell and a damper, the damper comprises a tension piece, a sliding block, a telescopic cylinder and a limiting piece, the sliding block is slidably mounted in the shell, and the tension piece is connected to the shell and the sliding block; the tension piece is capable of pulling the sliding block to move; the limiting piece is connected to the sliding block, and the telescopic cylinder is mounted on the shell; the limiting piece is provided with a compression surface, one end of telescopic cylinder abuts against the compression surface directly or indirectly, and the telescopic cylinder and the limiting piece have a first relative position and a second relative position; in the process that the tension piece pulls the sliding block, the telescopic cylinder moves; and in the process that the telescopic cylinder moves, the telescopic cylinder is gradually compressed.
    Type: Application
    Filed: September 7, 2022
    Publication date: January 5, 2023
    Applicant: FOSHAN TIANSI HARDWARE CO., LTD
    Inventors: Peiling Liang, Yelin Liang, Qingjun Lao, Haihui Zhu
  • Publication number: 20220305751
    Abstract: An impact forming device and method for local small features on a metal thin-walled curved-surface part. The impact forming device includes impact forming dies, impact loading units and a forming supporting die, wherein the impact forming die is provided with an impact forming part, and the impact forming part is a convex part corresponding to a local small feature; the forming supporting die can support and fix a metal thin-walled curved-surface part without forming local small features, and the forming supporting die is provided with concave parts matched with the impact forming parts; and the impact loading unit includes a guide rail, an explosive ball and a detonating block, under the impact loading of the impact loading units, the impact forming parts can impact the metal thin-walled curved-surface part without forming local small features under the matching action of the concave parts to form the local small features.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 29, 2022
    Inventors: Zhubin HE, Haihui ZHU
  • Patent number: 10589504
    Abstract: A lamination manufacturing method for large-sized metal components with complicated structures is provided, relating to a part manufacturing method to solve the problem that traditional machining, entire plastic forming and the existing additive manufacturing method are difficult to manufacture large-sized metal components with complicated special-shape structure and high-performance requirement. The manufacturing method includes the steps: step 1. obtaining a three-dimensional digital model of a large-sized metal component with complicated structure, and dividing the model into a plurality of slice layers; step 2. selecting the actually available metal sheet corresponding to the thickness of each slice layer divided in step 1, and machining each metal sheet to obtain a shaped sheet consistent with the model of each slice layer in step 1; step 3. stacking the shaped sheets obtained through machining of step 2 according to the order of the corresponding slice layers in step 1; and step 4.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: March 17, 2020
    Assignee: Harbin Institute of Technology
    Inventors: Zhubin He, Kun Zhang, Haihui Zhu, Shijian Yuan
  • Publication number: 20190105891
    Abstract: A lamination manufacturing method for large-sized metal components with complicated structures is provided, relating to a part manufacturing method to solve the problem that traditional machining, entire plastic forming and the existing additive manufacturing method are difficult to manufacture large-sized metal components with complicated special-shape structure and high-performance requirement. The manufacturing method includes the steps: step 1. obtaining a three-dimensional digital model of a large-sized metal component with complicated structure, and dividing the model into a plurality of slice layers; step 2. selecting the actually available metal sheet corresponding to the thickness of each slice layer divided in step 1, and machining each metal sheet to obtain a shaped sheet consistent with the model of each slice layer in step 1; step 3. stacking the shaped sheets obtained through machining of step 2 according to the order of the corresponding slice layers in step 1; and step 4.
    Type: Application
    Filed: December 27, 2016
    Publication date: April 11, 2019
    Applicant: Harbin Institute of Technology
    Inventors: Zhubin HE, Kun ZHANG, Haihui ZHU, Shijian YUAN