Patents by Inventor Pengpeng Zhou

Pengpeng Zhou 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).

  • Calcium oxide-based ceramic core and preparation method thereof
    Patent number: 9308579
    Abstract: This invention publishes a method to prepare CaO-based ceramic cores used in investment casting applications. This method claims to use the rare earth oxide to coat the CaO core surface; later the coated cores are shaped then sintered to get the final products. CaO based core was made by 5˜15 wt % plasticizer, 0.001˜20 wt % mineralizer and the rare earth-coated CaO powders to balance for total 100%. This preparation method can solve the CaO core water absorption problems during core manufacturing, shipping and storage process while improve the core chemical inertness and mechanical properties.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 12, 2016
    Assignee: BEIHANG UNIVERSITY
    Inventors: Guoqing Wu, Pengpeng Zhou, Jiaqi Zhao, Hai Nan
  • CALCIUM OXIDE-BASED CERAMIC CORE AND PREPARATION METHOD THEREOF
    Publication number: 20150239037
    Abstract: This invention publishes a method to prepare CaO-based ceramic cores used in investment casting applications. This method claims to use the rare earth oxide to coat the CaO core surface; later the coated cores are shaped then sintered to get the final products. CaO based core was made by 5˜15 wt % plasticizer, 0.001˜20 wt % mineralizer and the rare earth-coated CaO powders to balance for total 100%. This preparation method can solve the CaO core water absorption problems during core manufacturing, shipping and storage process while improve the core chemical inertness and mechanical properties.
    Type: Application
    Filed: May 31, 2013
    Publication date: August 27, 2015
    Inventors: Guoqing Wu, Pengpeng Zhou, Jiaqi Zhao, Hai Nan