Patents by Inventor Pusheng Ma

Pusheng Ma 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: 7913531
    Abstract: The invention provides a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. The curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2x2+a3x3+a4x4, x?[0,Le], y(x)?[0,He]. It is possible to partially eliminate the asymmetric deformation due to the difference between abrasion of the upper and lower rolls. Further, closed type abrasion of conventional roll is changed into open type abrasion and box shaped abrasion of conventional roll is eliminated, which eliminating “cat ear” hole and fulfilling the requirements of free ruled rolling.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 29, 2011
    Assignee: Angang Steel Company Limited
    Inventors: Haodong Huang, Xianlin Chen, Anrui He, Lin Zhao, Xiaochun Sha, Xu Yang, Xin Chen, Yanqiang Xu, Pusheng Ma, Xiaobo Guo, Haoran Dong, Shengtian Wu
  • Publication number: 20080163659
    Abstract: Disclosed herein is a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. Providing starting point of the tapered end of the rolls being origin of coordinates, the curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2x2+a3x3+a4x4, x?[0,Le], y(x)?[0,He]. Because the transition between the tapered end and the roll body is smooth, asymmetric deformation due to the difference between abrasion of the upper and lower rolls is eliminated, which reducing wedged shape of strip and reducing unstable rolling due to asymmetrical strip stresses caused by the axial shifting of the roll.
    Type: Application
    Filed: March 24, 2006
    Publication date: July 10, 2008
    Applicant: ANGANG STEEL COMPANY LIMITED
    Inventors: Haodong Huang, Xianlin Chen, Anrui He, Lin Zhao, Xiaochun Sha, Xu Yang, Xin Chen, Yanqiang Xu, Pusheng Ma, Xiaobo Guo, Haoran Dong, Shengtian Wu