Process for nitrocarburizing components made from steel
AssigneeDegussa AG
InventorGeorg Wahl
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Abstract
Components made from steel can be nitrocarburized in cyanate- and cyanide-containing salt baths within relatively short times if the process is carried out at 600.degree. to 700.degree. C. in a first stage and at 560.degree. to 590.degree. C. in a second stage. The components exhibit the same or better characteristics as compared to considerably longer processing at 560.degree. to 590.degree. C.
Claims2
A process for nitrocarburizing a component made at least in part from steel in a cyanate- and cyanide-containing salt melt at a temperature between 560.degree. and 700.degree. C., comprising immersing said component in said melt in a first stage at 600.degree. to 700.degree. C., and in a second stage at 560.degree. to 590.degree. C., wherein the ratio of time of immersion in said first stage:time of immersion in said second stage is from 20:1 to 1:15.
A process for nitrocarburizing a component made at least in part from steel in a cyanate- and cyanide-containing salt melt at a temperature between 560.degree. and 700.degree. C., comprising immersing said component in said melt in a first stage at 610.degree. to 650.degree. C. for 10 to 120 minutes and in a second stage at 570.degree. to 590.degree. C. for 10 to 90 minutes.
Dependencies are inferred from the claim text.