Coating processes – Coating by vapor – gas – or smoke – Mixture of vapors or gases utilized
Reexamination Certificate
2006-04-18
2010-06-08
Chen, Bret (Department: 1792)
Coating processes
Coating by vapor, gas, or smoke
Mixture of vapors or gases utilized
C427S435000, C427S530000
Reexamination Certificate
active
07732014
ABSTRACT:
A method for diffusing titanium and nitride into a base material having a generally compact, granular microstructure (e.g., carbide). The method generally includes the steps of providing a base material having a generally compact, granular microstructure; providing a salt bath which includes sodium dioxide and a salt selected from the group consisting of sodium cyanate and potassium cyanate; dispersing metallic titanium formed by electrolysis of a titanium compound in the bath; heating the salt bath to a temperature ranging from about 430° C. to about 670° C.; and soaking the base material in the salt bath for a time of from about 10 minutes to about 24 hours. In accordance with another aspect of the present invention, the base material may further be treated with conventional surface treatments or coatings.
REFERENCES:
patent: 3639641 (1972-02-01), Saton
patent: 4019928 (1977-04-01), Beyer et al.
patent: 4332653 (1982-06-01), Satoh
patent: 4492604 (1985-01-01), Muller et al.
patent: 4614341 (1986-09-01), Fernandez
patent: 5948177 (1999-09-01), Longwell et al.
patent: 6107225 (2000-08-01), Shobu et al.
patent: 6645566 (2003-11-01), Ko
patent: 7438769 (2008-10-01), Ko et al.
patent: 61-253365 (1986-11-01), None
Method of manufacturing high strength steel plate having TiN and ZrN precipitates by nitriding treatment for welded structures. Derwent abstract, 2003-010895, no pages numbers or inventors available.
Ko Bongsub Samuel
Ko Philos Jongho
Chen Bret
Cummings, P.C. Eugene M.
LandOfFree
Process for diffusing titanium and nitride into a material... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for diffusing titanium and nitride into a material..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for diffusing titanium and nitride into a material... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4173710