DIFFERENTIAL PRESSURE, COUNTERGRAVITY CASTING WITH ALLOYANT INTRODUCTION

摘要

DIFFERENTIAL PRESSURE, COUNTERGRAVITY CASTING WITH ALLOYANT INTRODUCTION A casting mold includes an inlet flow passage having first and second filtering members disposed therein in spaced apart relation to define an alloyant-receiving chamber therebetween in the flow passage. Alloyant, such as an inoculating and/or nodularizing agent, is disposed in the chamber such that molten metal is drawn through the chamber during countergravity casting to have the alloyant introduced therein immediately prior to the entry of the molten metal into a mold cavity thereabove.