Method of modifying the graphitic phase of the casting from a lamellar shape to a spheroidal or vermiform shape by means of a monophyle animem

摘要

The process for structurally modifying graphite phase of iron (c) from lamellar form to spheroidal or vermicular form through a funnel, which brings spheroidal or vermicular agents and inoculating agents together in a molten metal bath, is claimed. The modification of graphite from spheroidal form to vermicular form is carried out by partially or totally absorbing titanium liquid iron or other element by compaction or alloy inserts (b) that are positioned in a flow channel (a) of a mold. The inserts are substituted or positioned in the mold system by granular or crushed vermicular agents. The process for structurally modifying graphite phase of iron (c) from lamellar form to spheroidal or vermicular form through a funnel, which brings spheroidal or vermicular agents and inoculating agents together in a molten metal bath, is claimed. The modification of graphite from spheroidal form to vermicular form is carried out by partially or totally absorbing titanium liquid iron or other element by compaction or alloy inserts (b) that are positioned in a flow channel (a) of a mold. The inserts are substituted or positioned in the mold system by granular or crushed vermicular agents. The modifying action of the graphite such as inoculation efficiency is reinforced by the presence of lanthanum. An independent claim is included for a cast iron and components.