核心专利在一个专利群中处于节点和纽带的地位,是产业经济的核心.在调研大量国内外Ni基高温合金生产技术、合金产品、主要生产企业的基础上,通过常规选择方法、重要Ni基高温合金牌号对应的专利技术、重要生产技术对应的专利技术等方法选择了Ni基高温合金的核心专利技术.通过相关分析方法探讨了Ni基高温合金核心技术的主要分布区域、主要技术分布方向、核心技术的拥有企业、重点制备工艺等,绘制了Ni基高温合金核心技术及其产品的演进图谱,重点分析了Ni基高温合金制备技术、热障涂层技术、热处理技术、激光熔覆技术、合金修复技术等核心技术及其应用情况.在此基础上,对重点跟踪的企业以及他们的核心技术演进进行了探讨,并分析总结了近年来Ni基高温合金核心技术的研发方向.
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