摘要
从粉末冶金的压型理论入手 ,分析热压法制造薄壁金刚石钻头的胎体压制过程中的受力情况 ,指出了平底唇面设计存在的不足 ,在分析薄壁金刚石钻头胎体密度和硬度分布及钻进过程的前提下 ,提出了薄壁金刚石钻头的唇面应采用类似半圆形。
Stress state of thin kerf diamond bit manufactured by sintering method is analyzed based on molding theory of powder metallurgy and the shortcomings of flat contour of bit crown are pointed out. Semi circle like contour of bit crown for thin kerf diamond bit is proposed based on analyzing distribution of density and hardness of matrix of the bit and drilling process.
出处
《探矿工程》
2000年第2期46-48,共3页
Exploration Engineering(Drilling & Tunneling)
关键词
薄壁金刚石钻头
热压法
胎体粉末
唇面
钻头
thin kerf diamond bit
sintering method
matrix powder
contour of bitcrown
