精密轴承高精尖产品业是中国“十二五”重点发展行业
发布日期：2024-02-07
据中轴网调查，目前，我国在一些先进设备上使用的轴承，无论是高铁还是航空发动机上使用的，几乎都是进口。
“在高速轴承制造上，国产轴承高精尖产品都不行。”中轴网记者采访到吴光辉。在制造飞机时他们也曾找过国内的轴承厂家，但是质量和可靠性很难满足航空发动机的高要求。“尽管我们国家钢铁产量世界第一，但是一些高精度钢、特种钢还得依赖进口轴承。”“目前，我国在一些先进设备上使用的轴承，无论是高铁还是航空发动机上使用的，几乎都是进口轴承！”
在6日上午的两会政协小组讨论会上，中国商用飞机有限责任公司副总经理、c919大型客机总设计师吴光辉委员道出了自己担心已久的隐忧。“我们应该从国家层面鼓励一些企业去做一些高精尖、市场份额较小、利润也没有那么大的小元器件，而不是一味地追求大宗品和利润。”
轴承钢为例——这是一种用来制造滚珠、滚柱和轴承套圈的钢，具有高而均匀的硬度和耐磨性，以及高的弹性极限。据中轴网了解，轴承钢的制造对其化学成分的均匀性、非金属夹杂物的含量和分布、碳化物的分布等要求都十分严格，是所有钢铁生产中要求最严格的钢种之一。“做出来的轴承很小，一颗一颗的。”吴光辉用两只手指比划出黄豆大小，“这个东西用起来量也不大，人们觉得特意为它开个精炼炉不值，而且从研发到真正生产可能还会需要一个过程，所以很少有人愿意去做这方面的研发。”
据中轴网了解，精密轴承等基础机械铸造业是我国“十二五”期间重点发展的行业。尽管如此，吴光辉仍然建议我国能在“十三五”规划中对此类市场占有率很小、但又是国家急需的高精尖轴承产品做进一步的安排。
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