Kenneth R Britt

US Patent:

45913978, May 27, 1986

Filed:

Feb 26, 1985

Appl. No.:

6/705852

Inventors:

William C. Jones - Enfield CT
Kenneth R. Britt - Easthampton MA
Isaac L. Newell - Manchester CT

Assignee:

Heatbath Corporation - Springfield MA

International Classification:

C23C 910
C21D 148

US Classification:

148 155

Abstract:

A non-cyanide molten salt bath composition and process for the carburization of objects made of ferrous metals or alloys are provided. The composition comprises a molten salt mixture, at a temperature in the range of 900. degree. C. to 1050. degree. C. , of an alkali metal chloride or a mixture of alkali metal chlorides; an activator consisting of an oxygen containing strontium or barium salt; and a graphite cover. The process comprises immersing the ferrous metal or alloy part in the molten mixture at a temperature in the range of 900. degree. C. to 1050. degree. C.