Manufacturing of alloy cast iron grinding ball by means of composite modification of tungsten slag is a feasible way due to its simple process, low cost and good product quality.
采用复合变质方法，开发工艺简单、成本低的钨渣合金铸铁磨球是一种有效的途径，其材质性能可以满足使用的要求。
The results also find that wear resistance of niobium cast iron oil ring is 87.3% higher than that of CrMoCu alloy cast iron along with the cost reduction for niobium cast iron oil ring.
通过快速模拟磨损试验发现铌铸铁油环耐磨性能比铬钼铜油环提高87.3%，并降低了油环的制造成本。
The results also find that wear resistance of niobium cast iron oil ring is 87.3% higher than that of CrMoCu alloy cast iron along with the cost reduction for niobium cast iron oil ring.
通过快速模拟磨损试验发现铌铸铁油环耐磨性能比铬钼铜油环提高87.3%，并降低了油环的制造成本。
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