工程陶瓷的等离子弧加工技术  

Plasma Arc Cutting for Engineering Ceramics

作　　者：徐文骥[1] 方建成[2] 卢毅申[1] 周锦进[1] 马腾才[3] 

机构地区：[1]大连理工大学机械工程学院 [2]华侨大学机电及自动化学院 [3]大连理工大学三束材料改性国家重点联合实验室

出　　处：《中国机械工程》2003年第10期868-871,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 ( 5 980 5 0 0 2 )

摘　　要：介绍了附加阳极等离子弧加工陶瓷材料的基本原理、基本形式和特点 ,以切割厚度为 6mm的 Al2 O3陶瓷板为例 ,研究了水再约束、磁场再约束、水磁综合再约束等各种约束条件对等离子弧柱特性及切口质量的影响规律。结果表明 ,喷嘴直径为 4mm时 ,切口宽度小于 5 mm,切口角小于 3°,无渣切速可达 0 .8～ 1To solve the difficult problem of cutting engineering ceramics, the plasma arc cutting method with additional anode was offered. The rationale, forms and characteristics of the method were introduced. By means of cutting Al 2O 3 plates, the effect of each re-confined condition on plasma arc and kerf quality was studied. When the diameter of the nozzle is as 4mm and the kerf width is less than 5mm, the cutting speed may reach to 0 8~1m/min. The method is expected to become a useful technology for cutting engineering ceramics.

关 键 词：等离子弧切割 工程陶瓷 附加阳极 等离子体约束 

分 类 号：TG483[金属学及工艺—焊接]