针对某公司风电主轴产品强韧性性能测试结果存在不合格风险的问题，对该产品进行了成分分析、性能检验、金相检验等一系列的理化检验，并分析了得到的检验数据结果，着重对有效提高产品强韧性的措施进行了分析与讨论，综合考虑用户需求和经济效益等因素，最终决定调整产品原材料的成分含量，在原本的42CrMo4钢成分中加入质量分数为0.15%~0.20%的钒元素。结果表明：钒元素在钢中可以起到细晶强化和弥散强化的作用，使得该风电主轴产品的强韧性得到提高，保证了产品的质量。

Aiming at the problem of the unqualified risk of strength and toughness performance test results of a wind power spindle product of a company, a series of physical and chemical tests such as composition analysis, performance test and metallographic examination were carried out on the product, and the obtained test data results were analyzed. The measures to effectively improve the strength and toughness of the product were analyzed and discussed. Comprehensively considering the user's needs and economic benefits, it was decided to adjust the composition contents of raw material of the product, and the vanadium element with a mass fraction of 0.15%~0.20% was added to the original 42CrMo4 steel compositions. The results show that the vanadium element can play the role of fine grain strengthening and dispersion strengthening in the steel, which improves the strength and toughness of the wind power spindle product and ensures the quality of the product.