【摘要】 首先分析了热烧结矿筛分机 (简称热矿筛 )筛板使用寿命短的主要原因是由于筛板材质高温硬度低、高温耐磨性差。为了提高热矿筛的工作效率 ,提出了改进热矿筛筛板材质的必要性 ,并对新筛板材质的化学成分进行了科学设计 ,同时对新筛板的铸造及热处理工艺进行了探讨。研究结果表明 ,新研制的筛板使用安全、可靠 ,使用寿命达到CrMnN筛板的两倍 ,价格与CrMnN筛板相当 ,若在全国推广这种筛板 ,将会产生显著的经济效益。更多还原

【Abstract】 It is analyzed the main reason that hot mineral screen plate has short service life, it is because that screen plate had low high temperature hardness and low high temperature wear-resistance. In order to improve working efficiency of hot mineral screen, the necessity of improving screen plate material is put forward, screen plate composition and research its casting and heat treatment technology are designed scientifically. The results obtained show that the new screen plate is safe and reliable, its service life reaches to CrMnN sieve plate two times, price and CrMnN sieves plate quite. If new screen plate is extended in the whole nation, the good economical benefit will be obtained.更多还原