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Optimizing of particle accelerated rotor parameters using the discrete element method.

Bo Sun1,2, Shizhong Wei3,4, Lu Yang3,4

  • 1School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang, 471003, Henan, China. sunbo2020@haust.edu.cn.

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Summary
This summary is machine-generated.

Optimizing centrifugal jet rotor runner shape enhances powder particle injection speed. This study identified key parameters (L1, L2, α1, α2) and their interactions, leading to a 7.85% improvement in injection velocity for centrifugal impact moulding.

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Area of Science:

  • Materials Science and Engineering
  • Mechanical Engineering
  • Powder Technology

Background:

  • Centrifugal impact moulding requires high powder particle injection velocity.
  • The centrifugal jet rotor's acceleration capability is critical for this process.
  • Optimization of the rotor's runner shape is essential for enhancing performance.

Purpose of the Study:

  • To optimize the runner shape of a centrifugal jet rotor.
  • To investigate the influence of rotor parameters (L1, L2, α1, α2) on particle injection rate.
  • To improve the efficiency of centrifugal impact moulding.

Main Methods:

  • Utilizing multiple discrete element simulations to analyze parameter influence.
  • Establishing a regression model correlating rotor parameters with particle injection rate.
  • Conducting experimental validation of simulation findings.

Main Results:

  • Rotor parameters L1, L2, α1, and α2 significantly impact particle injection rate.
  • Interactions between L1 and L2, and between L2 and α2, demonstrate the largest effects.
  • Optimized parameters resulted in a 7.85% increase in particle injection speed compared to the baseline model.

Conclusions:

  • Runner shape optimization is a viable strategy for improving centrifugal jet rotor performance.
  • The identified key parameters and their interactions provide a basis for future design.
  • Enhanced particle injection speed directly contributes to improved centrifugal impact moulding efficiency for metal powders.