| 薄壁金刚石钻头的唇面设计 |
| 修订日期：1999-08-20 点此下载全文 |
| 引用本文：蔡家品.薄壁金刚石钻头的唇面设计[J].钻探工程,2000,(2):46-48.. Designon Crown Contour of Thin Kerf Diamond Bit[J]. Drilling Engineering, 2000,(2):46-48. |
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| 蔡家品 |
| 探矿工程研究所!北京房山102405 |
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| 中文摘要: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。 |
| 中文关键词:薄壁金刚石钻头,热压法,胎体粉末,唇面 |
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| Designon Crown Contour of Thin Kerf Diamond Bit |
| CAI Jia pin |
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| Abstract: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. |
| keywords:thin kerf diamond bit,sintering method,matrix powder,contour of bitcrown, |
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