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为解决铸造生产的XD系列制动盘产品硬度局部不足的缺陷,通过铸造工艺的改进,化学成分的调整,使生产的制动盘的硬度均匀性得到提高,金相组织珠光体含量增加,基体组织晶粒得到细化,满足了硬度要求。
In order to solve the defect of partial shortage of hardness of XD series disc brake products, through the improvement of casting technology and chemical composition adjustment, the hardness uniformity of brake discs is improved, the content of pearlite in the microstructure is increased, Tissue grains are refined to meet the hardness requirements.