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发明公开
CN105779895A 一种锰钨钛耐磨铸钢及其加工工艺 无效 - 驳回

一种锰钨钛耐磨铸钢及其加工工艺
摘要：
本发明涉及抗磨铸钢领域，具体说是一种锰钨钛耐磨铸钢及其加工工艺，该抗磨铸钢的组分按以下质量百分比组成：C：0.20?0.35%、W：1.0?2.0%、Si：0.5?1.5%、Mn：0.8?1.5%、Cr：1.0?2.0%、Ti：1.0?2.0%、S：≤0.04%、P：≤0.04%，余量为铁；制备时钢液中存在钨原子，钨原子会部分取代碳化物中铁原子的位置，形成(W，Fe)3C，而普通渗碳体显微硬度约为800Hv，钨原子的加入会使显微硬度提高，可达到1600—1800Hv左右，从而提高铸钢的硬度；同时还加入了Ti元素，使钢液生成足够多的形核质点TiC，使其颗粒数量大大增加。
摘要（英）：

The invention relates to the field of wear-resisting cast steel, in particular to manganese-tungsten-titanium wear-resisting cast steel and a machining process thereof. The wear-resisting cast steel is prepared from, by mass percent, 0.20% to 0.35% of C, 1.0% to 2.0% of W, 0.5% to 1.5% of Si, 0.8% to 1.5% of Mn, 1.0% to 2.0% of Cr, 1.0% to 2.0% of Ti, not larger than 0.04% of S, not larger than 0.04% of P and the balance iron. In the preparation process, tungsten atoms exist in molten steel and can partially replace the positions of iron atoms in carbide, and (W, Fe) 3C is formed; and but the microhardness of common cementite is about 800 Hv, the microhardness can be improved by adding the tungsten atoms and can range from about 1,600 Hv to 1,800 Hv, and therefore the hardness of the cast steel is improved. Meanwhile, an element Ti is added, so that enough nucleation material points TiC are generated by the molten liquid, and the number of particles of TiC is greatly increased.

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