Articles
  • Effect of hydrofluoric acid chemical corrosion on the grinding of silicon nitride ceramic ball

  • Ziqiang Gea, Songhua Lia,b,*, Yuhou Wua,b, Yong Shaa, Jian Suna and Junxing Tiana

  • aSchool of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
    bNational-Local Joint Engineering Laboratory of NC Machining Equipment and Technology of High-Grade Stone, Shenyang 110168, China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

To improve the grinding efficiency of silicon nitride ceramic balls and save processing costs, the pretreatment of hydrofluoric acid that corrodes silicon nitride was introduced into the grinding process based on the chemical characteristics of silicon nitride ceramics that are not resistant to hydrofluoric acid. This paper mainly discusses the effect of hydrofluoric acid pretreatment on the corrosion and grinding of silicon nitride ceramic balls. Through comparison experiments of grinding silicon nitride balls before and after corrosion, it is found that hydrofluoric acid can effectively destroy the structure and reduce the strength of silicon nitride ceramic on the surface. After pretreatment, the grinding removal efficiency of silicon nitride ceramic balls was significantly improved, the ball diameter variation was reduced, and there was no effect on the properties of silicon nitride ceramic. This processing method is expected to be applied to the mass production of silicon nitride ceramic balls


Keywords: Silicon nitride ceramic balls, Hydrofluoric acid, Corrosion, Strength of surface materials, Grinding

This Article

  • 2022; 23(5): 685-693

    Published on Oct 31, 2022

  • 10.36410/jcpr.2022.23.5.685
  • Received on Apr 7, 2022
  • Revised on Jun 24, 2022
  • Accepted on Jun 25, 2022

Correspondence to

  • Songhua Li

  • aSchool of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
    bNational-Local Joint Engineering Laboratory of NC Machining Equipment and Technology of High-Grade Stone, Shenyang 110168, China
    Tel : +86-24-24694319 Fax: +86-24-24694319

  • E-mail: lisonghua@sjzu.edu.cn