Chaparral Steel Company

Other

Mannesmann Aktiengesellschaft

Libor F Rostik

Lloyd M Schmelzle

Dieter Figge

Peter Fink

Gordon E Forward

A continuous process and system for making flat rolled steel or ferrous metal strip having a minimum thickness sufficient to allow substantially direct product manufacture therefrom, wherein a Platzer planetary mill continuously receives an as-continuously cast endless slab of steel or ferrous metal and effects a first reduction in thickness from the as-continuously cast thickness of the slab, a plurality of millstands sequentially receive the continuous strip from the Platzer planetary mill to effect a second reduction in thickness of at least about 50% of the first reduced thickness to provide a continuous strip having an average thickness of less than about 1.8 mm, and electric induction reheaters are placed between each adjacent pair of millstands to maintain the continuous strip at a working temperature sufficient to effect the second reduction in thickness.

System and process for forming thin flat hot rolled steel strip

An as-continuously cast beam blank comprising a web portion and a plurality of opposed flange precursor portions extending from opposite ends of the web portion, the web portion having an average thickness of no greater than about 3 inches, each of said flange precursor portions having an average thickness of no greater than about 3 inches, wherein the ratio of the average thickness of the flange precursor portions to the average thickness of the web portion preferably is between about 0.5:1 to about 2:1; a beam formed from that beam blank, and a method for casting a continuously-cast beam blank having those characteristics from a single molten metal stream open poured into a beam blank mold at a location in the mold within the mold portion which forms the web of the blank, proximate to one of the ends of the web portion, or, alternatively, from two separate, simultaneously poured molten metal streams, each of said streams being open poured into a beam blank mold at a location in the mold within the mold portion which forms the web of the blank, proximate to each of a respective one of the ends of the web portion; the resulting beam blank having a crystal grain structure of fine ferrite and pearlite, substantially free of acicular ferrite and grain boundary ferrite films.

As-continuously cast beam blank and method for casting continuously cast

A mold for use in the horizontal continuous casting of molten material has an integral break ring. The break ring is produced by thermal spraying refractory material onto the surface of the mold to bond the refractory material and solidify it to integrally form the break ring.

Growing community of inventors

Duncanville, TX, United States of America

Libor F Rostik