Hoop for CVT belt and manufacturing method therefor

Details Hoop for CVT belt and manufacturing method therefor Hoop for CVT belt and manufacturing method therefor

2007-04-17

2007-04-17

King, Roy (Department: 1742)

Metal treatment

Stock

Carburized or nitrided

C148S230000, C474S201000

Reexamination Certificate

active

10214314

ABSTRACT:
A hoop for a CVT belt including foreign matter existing in a nitrided hardened layer and surface of the hoop, the foreign matter comprises at least one of an oxide-type foreign matter, a nitride-type foreign matter, and a carbide-type foreign matter. The oxide-type foreign matter has a particle size of 25 μm or less, the nitride-type foreign matter and/or the carbide-type foreign matter have particle sizes of 17 μm or less.

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