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发明公开
CN105886890A 球墨铸铁耐磨球制备方法 无效 - 驳回

球墨铸铁耐磨球制备方法
摘要：
本发明公开了一种球墨铸铁耐磨球制备方法，包括有以下工艺步骤：该耐磨球铸件中各合金成分及重量百分比为：C 2.05~2.15%，Si 1.3~1.5%，Cr 2.5~2.6%，Mo0.45~0.75%，P0.006~0.012%，S0.002~0.008%，Ni0.45~0.65%，W0.12~0.22%，Cu0.25~0.55%，Ti0.15~0.25%，Ca0.4~0.6%，Nb0.04~0.15%，余量为铁；本发明材料的内部缺陷得到了有效消除，完全能够达到相关的超声波探伤要求及晶粒度要求，产品各方面性能相对提高，进一步节约生产成本。
摘要（英）：

The invention discloses an abrasion-resistant ductile cast iron ball preparation method. A abrasion-resistant ball casting comprises, by weight, 2.05-2.15% of C, 1.3-1.5% of Si, 2.5-2.6% of Cr, 0.45-0.75% of Mo, 0.006-0.012% of P, 0.002-0.008% of S, 0.45-0.65% of Ni, 0.12-0.22% of W, 0.25-0.55% of Cu, 0.15-0.25% of Ti, 0.4-0.6% of Ca, 0.04-0.15% of Nb and the balance iron. Internal defects of materials are effectively eliminated, relevant ultrasonic flaw detection requirements and grain size requirements can be met completely, performances of products are improved relatively, and production cost is further saved.

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