【摘要】 基于我国钴资源不足．我厂研制和试生产了“Ｎ”、“Ｔ”两类新型硬质合金。它们均以矿山凿岩为应用领域。实践表明：新型硬质合金工艺技术可行、使用效果良好，且制造成本相对于传统硬质合金要低得多。更多还原

【Abstract】 In view of the inadequate resources of cobalt, two new typesof cemented carbide of "N" and "T" have been developed and produced inour factory. They have all been used in the field of rock drilling.Thepractice has shown that the new types of cemented cabride have the practicaltechnology, good use effect and lower production cost than conventionalcemented carbide.更多还原