硬质合金/碳钢复合轧辊的可行性初探

为了寻找一种替代传统整体硬质合金轧辊的新型复合轧辊,以期在不影响轧辊使用性能的基础上,节省宝贵的W、Co资源,降低生产成本,对采用硬质合金/碳钢复合轧辊的可行性进行初步探索,并从材料的物理力学性能与微观组织结构两方面对WC-Co硬质合金与碳钢连接区域进行深入解析.结果表明,通过对铁基粉末与硬质合金混合料粉末的合理搭配、采用特殊装料方式、用传统模压成形方法压制毛坯、施行热等静压烧结或加压烧结,所制备的WC-Co硬质合金/碳钢烧结复合体材料,结合区强度可达1 600 MPa,并通过Fe、Co原子互扩散形成了良好的冶金结合,从制备工艺方面初步证明以硬质合金/碳钢复合轧辊替代硬质合金轧辊是可行的.

Preliminary inquisition for feasibility of using cemented carbide/carbon steel composite mill roller

The feasibility of replacing conventional cemented carbide mill roller by cemented carbide/carbon steel composite mill roller,i.e.replacing solid cemented carbide roller by new composite roller with surface layer of cemented carbide only and the other party made of carbon steel,is explored to save the precious tungsten and cobalt resources and reduce the production cost.Physical properties and microstructures of the cemented carbide/carbon steel composite are investigated.It is shown that by optimizing the ...