通过加入微量元素研究了１ 种高强韧性耐磨铸钢榨螺；结果表明，这种高强韧性耐磨铸钢榨螺，在基本硬度ＨＲＣ 保持在５１－６ 的条件下，抗拉强度和无缺口冲击韧性分别达到１ ８５０ ＭＰａ 和１４６ Ｊ／ｃｍ ２，完全满足大型榨油机的使用要求；与原渗碳钢榨螺相比，高强韧性耐磨铸钢榨螺的使用寿命提高２ 倍以上，材料利用率提高了１３２ ％ ，生产成本大幅度降低。 By adding trace elements to study a high strength and toughness wear-resistant cast steel snail; results show that this high-strength and toughness wear-resistant cast steel snail, the basic hardness HRC maintained at 51-6 under the conditions of tensile strength and unnotched Impact toughness respectively 1 850 MPa and 146 J / cm 2, fully meet the requirements of large oil press; compared with the original carburizing steel, the service life of the high strength and toughness wear-resistant cast steel snail increased more than 2 times, Material utilization increased by 132%, significantly reducing production costs.