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发明公开
CN107002188A 合金蠕墨铸铁、轨道车辆制动盘和熔铸方法 无效 - 驳回

合金蠕墨铸铁、轨道车辆制动盘和熔铸方法
摘要：
一种合金蠕墨铸铁、轨道车辆制动盘和熔铸方法，合金蠕墨铸铁的化学组成及其质量百分比为：C：3.3～3.5%，Si：2.3～2.5%，Mn:0.4～0.7%，Cu:0.6～1.0%，Mo:0.2～0.6%，Ni:0.6～1.0%，P≤0.07%，S≤0.02%，以及余量的Fe。合金蠕墨铸铁具有良好的导热性、强度、耐磨性等物理性能，基于该合金蠕墨铸铁制备的轨道车辆制动盘不易形成热裂纹且热裂纹不易扩展。
摘要（英）：

A compacted graphite iron alloy, a rail vehicle brake disk and a casting method for same, the chemical composition of the compacted graphite iron alloy being: C: 3.3% to 3.5%, Si: 2.3% to 2.5%, Mn: 0.4% to 0.7%, Cu: 0.6% to 1.0%, Mo: 0.2% to 0.6%, Ni: 0.6% to 1.0%, P<=0.07%, S<=0.02%, the remainder being Fe. The compacted graphite iron alloy of the present invention shows excellent thermal conductivity, strength, abrasion resistance, and similar physical properties. Rail vehicle brake discs prepared using the alloy are less prone to thermal cracking and thermal cracks are less likely to expand.

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