多金属结核金属化还原多元合金磁性能

用自动矿物分析仪、金相显微镜和扫描电镜,从多元合金颗粒尺寸、锰含量、金相组织结构等进行研究,以饱和磁感应强度Ms和剩磁Mr来衡量合金磁性能变化规律,研究多金属结核金属化还原工艺中多元合金磁性能。结果表明,多金属结核金属化还原多元合金磁性能主要受合金颗粒尺寸和锰含量影响,多元合金晶粒尺寸越大,锰含量越低,合金颗粒磁性能越强。因此,工艺过程中应该尽可能增大多元合金晶粒尺寸,抑制锰的还原。

Magnetic Properties of Multi-element Alloy from Polymetallic Nodules by Metalized Reduction

The study was carried out from three main influencing factors of multi-element alloy particle size, manganese content and metallographic structure with automatic mineral analyzer, metallographic microscope and scanning electron microscope. Saturation magnetic induction intensity Ms and remanent magnetic Mr were used to measure magnetic properties of alloy. Magnetic properties of multi-component alloys in metalized reduction process of polymetallic nodules were studied. The results show that magnetic properties of multi-element alloy from polymetallic nodules by metalized reduction are mainly affected by particle size and manganese content of alloy. The larger the particles size, the lower the manganese content and the stronger the magnetic properties of alloy particles. Therefore, particles size of multi-element alloy should be increased as much as possible to inhibit manganese reduction in operation process.