Browse Prior Art Database

Self Lubricating Material With Through

IP.com Disclosure Number: IPCOM000096813D
Original Publication Date: 1963-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Bolda, FJ: AUTHOR [+3]

Abstract

Adherent coatings of solid lubricating material can be provided on the internal and external surfaces of porous tungsten or molybdenum. Metal surfaces which are susceptible to wear can be fabricated from the porous tungsten or molybdenum stock. They can then be treated according to this process to form solid lubricating internal and external surfaces. The presence of the lubricating surfaces reduces the wear of contacting metal parts to a low degree. A further decrease in friction and wear between the tungsten or molybdenum and contacting metal surfaces can be obtained. This is by forced gaseous lubrication through the porous tungsten or molybdenum material to continually provide a gaseous film between the wearing surfaces in addition to the solid lubricating film.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 72% of the total text.

Page 1 of 1

Self Lubricating Material With Through

Adherent coatings of solid lubricating material can be provided on the internal and external surfaces of porous tungsten or molybdenum. Metal surfaces which are susceptible to wear can be fabricated from the porous tungsten or molybdenum stock. They can then be treated according to this process to form solid lubricating internal and external surfaces. The presence of the lubricating surfaces reduces the wear of contacting metal parts to a low degree. A further decrease in friction and wear between the tungsten or molybdenum and contacting metal surfaces can be obtained. This is by forced gaseous lubrication through the porous tungsten or molybdenum material to continually provide a gaseous film between the wearing surfaces in addition to the solid lubricating film.

The lubricating surface is obtained by a surface modification of a porous tungsten or molybdenum block of material. The porous block of material is positioned within a furnace so as to provide penetration of the furnace atmosphere. The furnace has an inlet for introducing a gas capable of converting the porous metal surfaces to the form of lubricating compound desired. Sulfur gases, hydrogen sulfide, hydrogen selenide and hydrogen telluride are gases suitable for this purpose. Other gaseous substances of a corresponding nature can be alternatively used.

The atmospheric gases are first flushed out of the furnace with the gas to be used in the conversion process. Th...