23 Jul Composite inoculant used for grey cast iron and preparation method and application method of composite inoculant
Abstract
The invention discloses a composite inoculant used for grey cast iron and a preparation method and an application method of the composite inoculant, relating to cast iron alloy. The inoculant is an inoculation refiner that consists of Fe-Ce-Is-Ca intermediate alloy and Fe-B-V intermediate alloy and takes the shape of a nanocrystal sheet. The nanocrystal particle is smaller than 100nm, and the average thickness, the average width and the average length of the sheet respectively range between 0.3-0.5mm, 0.3-0.75mm and 0.9-1.6mm. The preparation method is a fast quenching melt spinning method. The application method is a metal fusion casting process. When used for crystal particle and tissue refining treatment on the grey cast iron alloy tissue of grey cast iron wear resistant parts for engineering machinery, the inoculant overcomes casting defects, and obviously refines matrix crystal particle and cementite phase, thus notably improving the comprehensive mechanical property of grey cast iron alloy.
Year: 2011
Country: CN
Doc No: 102181779