Patents by Inventor Zhu Pan Ping

Zhu Pan Ping 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).

  • Method and apparatus for predicting microstructure of cast iron
    Patent number: 5305815
    Abstract: A method and apparatus for predicting nodularity of a hypo or hyper eutectic cast iron melt during casting is described. The method is particularly useful for NiMg-treated melts but can also be used for rare earth treated melts. A small sample of the melt is poured into a sample cup to which up to 0.025% wt bismuth is added and a cooling curve is produced during cooling. In a NiMg treated melt, a .DELTA.T (TER-TEU) of at least 9.degree. C. indicates good nodularity. In an RE treated melt, a .DELTA.T of less than 6.degree. C. at a TER/TEU of 1140.degree. C. also indicates good nodularity will be observed upon the solidification of the melt.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: April 26, 1994
    Assignee: Queen's University
    Inventors: Zhu Pan Ping, Reginald W. Smith