Sliding pairing for machine parts that are subjected to the...

Details Sliding pairing for machine parts that are subjected to the... Sliding pairing for machine parts that are subjected to the...

2005-09-13

2005-09-13

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

Cylinder detail

Reexamination Certificate

active

06941854

ABSTRACT:
A pair of sliding elements for machine parts exposed to high-pressure and high-temperature steam, preferably piston-cylinder arrangements for steam engines. The first sliding element is produced from a synthetic, fired but not graphitized carbon material which comprises graphitized carbon black and/or natural graphite as significant filler and whose pores are filled with metal, metal alloy, a ceramic, synthetic resin and/or pitch which has been carbonized, preferably in the form of a piston and/or piston ring. The second sliding element, preferably in the form of a cylinder liner or guide bush, comprising an iron-containing, high-temperature-resistant material which is preferably alloyed with chromium and/or nickel and is provided at least on the surface layer with a nitride layer.

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