Patents by Inventor Qinling HE

Qinling HE 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).

  • Publication number: 20240051006
    Abstract: Disclosed are a stamping method and a deep-drawing die for an aluminum alloy liner of a large-volume hydrogen storage cylinder, which solve that technical problem of low production efficiency of processing the aluminum alloy liner of the large-volume hydrogen storage cylinder by adopting strong spin and thinning of an aluminum tube in the prior art. The stamping method includes heating and stamping an aluminum ingot into a cup-shaped rough blank, then cold deep drawing the cup-shaped rough blank for thinning and lengthening into an aluminium alloy liner, and the deep-drawing die includes terrace die and thinning dies.
    Type: Application
    Filed: April 19, 2023
    Publication date: February 15, 2024
    Inventors: Shihong LI, Cunjiang FENG, Hao YI, Qingbo GONG, Qinling HE, Jiachao HE, Yong TANG, Na QI