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Volume 33 Issue 1
Jan 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(1): 013102.
WANG Bolong, LI Mingzhe, LIU Zhiwei, HAN Xin. A Novel Tangential Split-Belt Ultrahigh Pressure Apparatus[J]. Chinese Journal of High Pressure Physics, 2019, 33(1): 013102. doi: 10.11858/gywlxb.20180595
Citation: WANG Bolong, LI Mingzhe, LIU Zhiwei, HAN Xin. A Novel Tangential Split-Belt Ultrahigh Pressure Apparatus[J]. Chinese Journal of High Pressure Physics, 2019, 33(1): 013102. doi: 10.11858/gywlxb.20180595
shu

A Novel Tangential Split-Belt Ultrahigh Pressure Apparatus

doi: 10.11858/gywlxb.20180595
  • 1.

    School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China

  • 2.

    Dieless Forming Technology Center, Jilin University, Changchun 130025, China

  • 3.

    School of Mechanical Engineering, Anhui University of Science and Technology, Huainan 232001, China

  • Received Date: 11 Jul 2018
  • Rev Recd Date: 12 Aug 2018
    Abstract
  • A novel tangential split apparatus was designed to improve the pressure bearing capacity of the ultra-high pressure die. The tangential block structure can not only eliminate the circumferential tensile stress of the inner wall of the cylinder through mutual friction and extrusion on the split surface, but also generate a large circumferential compressive stress on the inner wall. This pressed state is very advantageous for the cemented carbide material and can significantly increase the ultimate pressure capacity of the cylinder. The numerical simulation results show that under the same load conditions, the equivalent stress of the segmented cylinder is significantly less than that of the belt cylinder. The three principal stresses on the inner wall of the block cylinder are compressive stress, and the difference is small. These stresses are close to the isostatic pressure state, so the cylinder can withstand higher sample chamber pressure. The comparative experimental results also prove that the tangential split-belt ultrahigh pressure apparatus has higher ultimate load carrying capacity.

     

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