Richard C Sussman

US Patent:

45727473, Feb 25, 1986

Filed:

Feb 2, 1984

Appl. No.:

6/576341

Inventors:

Richard C. Sussman - West Chester OH
Larry G. Evans - Middletown OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

C22C 100
C22C 3300

US Classification:

148 3

Abstract:

A process for making a boron alloy from a ferrous or non-ferrous melt by adding a boron compound to the melt and reducing the compound within the melt by a reductant, such as aluminum, silicon or carbon, such that the boron can alloy with the melt. A boron alloy containing from very little boron up to 15% boron by weight can be formed. At least 40% of the boron compound is reduced to boron. The alloy can also be employed to make an amorphous material by discharging the molten alloy onto a moving surface to form a strip. The moving surface is a chill body which can quench the strip at a rate of at least from 10. sup. 4. degree. C. /sec, or higher to solidify the strip and form an amorphous boron alloy material.

US Patent:

49370430, Jun 26, 1990

Filed:

Dec 19, 1986

Appl. No.:

6/945197

Inventors:

Richard C. Sussman - West Chester OH
Larry G. Evans - Middletown OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

C22C 3300
C22C 1905

US Classification:

420121

Abstract:

A process for making a boron alloy from a ferrous or non-ferrous melt by adding a boron compound to the melt and reducing the compound within the melt by a reductant, such as aluminum, silicon or carbon, such that the boron can alloy with the melt. A boron alloy containing from very little boron up to 15% boron by weight can be formed. At least 40% of the boron compound is reduced to boron. The alloy can also be employed to make an amorphous material by discharging the molten alloy onto a moving surface to form a strip. The moving surface is a chill body which can quench the strip at a rate of at least from 10. sup. 4. degree. C. /sec, or higher to solidify the strip and form an amorphous boron alloy material.

US Patent:

57025029, Dec 30, 1997

Filed:

Dec 14, 1995

Appl. No.:

8/573316

Inventors:

David M. Kundrat - Cincinnati OH
Allan M. Smillie - Middletown OH
Richard C. Sussman - West Chester OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

C21B 1500
C21C 700
C22B 404
C22B 900

US Classification:

75501

Abstract:

A three-stage process for obtaining metallic Cr units insitu during the production of stainless steel. Raw chromite ore or a concentrate produced from chromite ore is mixed with a carbonaceous reductant and slagging agents are added to an iron bath (24) for smelting and refining in a refining reactor (10). During the first stage, partially metallized chromite is smelted by carbon in the reactor that is top-and bottom-blown with oxygen and oxygen-containing gases respectively to produce a chromium alloy bath having a carbon content well below saturation. In the second stage, the alloy bath is decarburized by being bottom stirred with the oxygen-containing gas to the final bath carbon specification. In the third stage, the alloy bath is reduced by a metalloid reductant such as silicon or aluminum and again bottom stirred but with a non-oxidizing gas to achieve a high chromium yield. The reactor includes a top lance (18) extending through a throat (14) with a lower portion (20) of the lance extending to a point just above the bath and means (22) such as a tuyere or porous plug mounted at or near a bottom (16) and extending through a refractory lining (12) for stirring the iron bath containing dissolved carbon.

US Patent:

50405926, Aug 20, 1991

Filed:

Jun 22, 1990

Appl. No.:

7/543615

Inventors:

Edward L. King - Trenton OH
Donald W. Follstaedt - Middletown OH
Richard C. Sussman - West Chester OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

B22D 1106

US Classification:

164463

Abstract:

The continuous casting of strip, ribbon and wire is improved by using a free jet nozzle which provides a fluid that follows a rotating substrate surface to the separation point. The nozzle includes an inclined surface having a ratio of its length to the gap between the substrate and the nozzle edge of 5:1 to 15:1. The inclined surface improves the ability of the jet to tangentially follow the substrate in a direction opposite to its rotation to the separation point. This also allows a close positioning of the nozzle to the substrate which serves to provide a back-up mechanical separation means by using the edge of nozzle lip. The nozzle may be rotated from its operating position for cleaning of the substrate and the nozzle.