Richard Alan Coleman

US Patent:

46752145, Jun 23, 1987

Filed:

May 20, 1986

Appl. No.:

6/865238

Inventors:

Farrell M. Kilbane - Centerville OH
Richard A. Coleman - Middletown OH
Frank C. Dunbar - West Chester OH
Alan F. Gibson - Middletown OH

International Classification:

C23C 212

US Classification:

427320

Abstract:

Continuously hot dip aluminum coated ferritic chromium alloy steel strip. After the steel has been given a pretreatment to remove surface contaminants, the steel is protected in a hydrogen atmosphere until it is passed into the molten aluminum coating metal. The coating metal readily wets the steel surface to prevent uncoated areas or pin holes in the coating layer.

US Patent:

48001350, Jan 24, 1989

Filed:

Feb 20, 1987

Appl. No.:

7/016920

Inventors:

Farrell M. Kilbane - Centerville OH
Richard A. Coleman - Middletown OH
Frank C. Dunbar - West Chester OH
Alan F. Gibson - Middletown OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

B32B 1518

US Classification:

428653

Abstract:

Continuously hot dip aluminum coated ferritic chromium alloy steel strip. After the steel has been given a pretreatment to remove surface contaminants, the steel is protected in a hydrogen atmosphere until it is passed into the molten aluminum coating metal. The coating metal readily wets the steel surface to prevent uncoated areas or pin holes in the coating layer.

US Patent:

48837237, Nov 28, 1989

Filed:

Jun 24, 1988

Appl. No.:

7/211019

Inventors:

Farrell M. Kilbane - Centerville OH
Richard A. Coleman - West Chester OH
Frank C. Dunbar - Middletown OH
Alan F. Gibson - Middletown OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

B32B 1518
B32B 1520

US Classification:

428653

Abstract:

Continuously hot dip aluminum coated ferritic chromium alloy steel strip. After the steel has been given a pretreatment to remove surface contaminants, the steel is protected in a hydrogen atmosphere until it is passed into the molten aluminum coating metal. The coating metal readily wets the steel surface to prevent uncoated areas or pin holes in the coating layer.

US Patent:

50665499, Nov 19, 1991

Filed:

Nov 22, 1988

Appl. No.:

7/275147

Inventors:

Farrell M. Kilbane - Centerville OH
Richard A. Coleman - Middletown OH
Frank C. Dunbar - West Chester OH
Alan F. Gibson - Middletown OH

Assignee:

Armco Inc. - Middletown OH

International Classification:

B32B 1518

US Classification:

428653

Abstract:

Continuously hot dip aluminum coated ferritic chromium alloy steel strip. After the steel has been given a pretreatment to remove surface contaminants, the steel is protected in a hydrogen atmosphere until it is passed into the molten aluminum coating metal. The coating metal readily wets the steel surface to prevent uncoated areas or pin holes in the coating layer.

US Patent:

51166453, May 26, 1992

Filed:

Aug 27, 1990

Appl. No.:

7/549569

Inventors:

Steven L. Boston - Middletown OH
Farrell M. Kilbane - Centerville OH
Danny E. Lee - Middletown OH
William R. Seay - Franklin OH
Richard A. Coleman - West Chester OH

Assignee:

Armco Steel Company, L.P. - Middletown OH

International Classification:

C23C 212

US Classification:

427320

Abstract:

Continuous hot dip aluminum coated ferritic chromium alloy steel strip. Strip is cleaned by heating to a temperature no greater than about 650. degree. C. in a direct fired furnace. The cleaned strip is further heated in a protective atmosphere containing at least 95% by volume hydrogen, cooled in the protective hydrogen atmosphere to near or slightly above the melting point of an aluminum coating metal, and passed into a bath of the aluminum coating metal. The low direct fired furnace cleaning temperature and hydrogen protective atmosphere provides good wetting of a chromium alloy steel surface to prevent uncoated areas or pin holes in the aluminum coated layer.

US Patent:

50231138, Jun 11, 1991

Filed:

Aug 29, 1988

Appl. No.:

7/237915

Inventors:

Steven L. Boston - Middletown OH
William R. Seay - Franklin OH
Richard A. Coleman - West Chester OH

Assignee:

Armco Steel Company, L.P. - Middletown OH

International Classification:

C23C 212

US Classification:

427320

Abstract:

Continuous hot dip aluminum coated ferritic chromium alloy steel strip. Strip is cleaned by heating to a temperature no greater than about 650. degree. C. in a direct fired furnace. The cleaned strip is further heated in a protective atmosphere containing at least 95% by volume hydrogen, cooled in the protective hydrogen atmosphere to near or slightly above the melting point of an aluminum coating metal, and passed into a bath of the aluminum coating metal. The low direct fired furnace cleaning temperature and hydrogen protective atmosphere provides good wetting of a chromium alloy steel surface to prevent uncoated areas or pin holes in the aluminum coated layer.