Danieli Technology, Inc.

Danieli Wean

Danieli Wean, Division of Danieli Corporation

Stephen L Feldbauer

Timothy L Cox

Richard K Lordo

Brian H Braho

Paul R Ripple

A method and apparatus for coating a substrate () with a metal coating by vaporizing the metal in an enclosure () containing a selected gas and the substrate. The vaporized metal is deposited on the surface of the substrate either in a solid or molten form depending on the temperature of the substrate relative to the melting point of the metal being deposited. Alloying of the substrate and coating metal are possible with various postcoating heat treatments.

Method and apparatus for metal vapor coating

A method for the direct production, from molten metal, of scale-free thin metal strip. Hot thin metal strip exiting a continuous caster system is directed to a reducing chamber wherein a reducing gas reduces strip surface oxides while the cast metal strip is at an elevated temperature from retained heat from the molten metal. A cooling unit following the reducing chamber is used to cool the strip to a temperature below about 150&deg; C. prior to exposing the strip to an oxidizing atmosphere. In various embodiments of the invention, strip thickness is reduced with use of hot and cold rolling mills and the scale-free surface of the strip is coated with protective coatings.

Method for the direct production of scale-free thin metal strip

A method and apparatus for the direct production, from molten metal, of scale-free thin metal strip. Hot thin metal strip exiting a continuous caster system is directed to a reducing chamber wherein a reducing gas reduces strip surface oxides while the cast metal strip is at an elevated temperature from retained heat from the molten metal. A cooling unit following the reducing chamber is used to cool the strip to a temperature below about 150&deg; C. prior to exposing the strip to an oxidizing atmosphere. In various embodiments of the invention, strip thickness is reduced with use of hot and cold rolling mills and the scale-free surface of the strip is coated with protective coatings.

Apparatus for the direct production of scale-free thin metal strip

Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner. In a preferred version, the gas is passed through at least two reducing zones designed to maintain a higher concentration of reducing gas in at least one of them than would be the case in a single reducing zone. The oxide-bearing surface is heated at the beginning of the process.

Apparatus and method for sequential removal of oxides from steel

Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner in an enclosure. The oxide-bearing surface is heated to at least 900 degrees F.

Apparatus and method for continuous removal of oxides from metal

Countercurrent reduction of oxides on moving metal

A hydrodynamic thrust bearing assembly for supporting a reduced diameter end portion of a rotating shaft includes a thrust button or plate having one end thereof abutting an end of the reduced diameter end portion to absorb axial forces exerted by the rotating shaft, and a hollow cylindrical bearing sleeve disposed around the reduced diameter end portion, and wherein the thrust button has a central aperture for introduction of a process fluid and a plurality of slots in the one end of the thrust button and communicating with the central aperture in the thrust button and with a helical groove formed in an interior surface of the sleeve.

Hydrodynamic thrust bearing assembly

A recirculating fume scrubber system in which fume is evolved from an aqueous bath in a process vessel, such as an HCl pickling tank, and the evolved fume is scrubbed with water and then the scrubbed gas is divided into two portions, one of which is released to a stack vented to atmosphere and the other portion is recirculated to the scrubber.

Growing community of inventors

Jackson Center, PA, United States of America

Stephen L Feldbauer