Self-lubricating sintered sliding material and method for manufacturing the same
AssigneeKomatsu Ltd.
InventorsTakemori Takayama, Yoshikiyo Tanaka
Life of this patent
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Abstract
A self-lubricating sintered sliding member and its producing method, the member having excellent seizing resistance and wear resistance even in offset load and high load applications. The self-lubricating sintered sliding member is composed of an iron-family metal substrate and a sintered contact layer that is formed on a sliding side of the iron-family metal substrate and made from a sintered contact material containing an iron-family material. The sintered contact layer has, on a surface thereof, protrusions formed from solid lubricant particles including graphite. A solid lubricant layer is laid over the surface of the sintered contact layer where the protrusions are formed.
Claims23
A self-lubricating sintered sliding member comprising an iron-family metal substrate and a sintered contact layer that is formed on a sliding side of the iron-family metal substrate and made from a sintered contact material containing an iron-family material, the sintered contact layer having, on a surface thereof, protrusions formed from solid lubricant particles, the surface of the sintered contact layer where the protrusions are formed being covered with a solid lubricant layer.
A self-lubricating sintered sliding member comprising an iron-family metal substrate and a sintered contact layer formed on the iron-family metal substrate, the sintered contact layer having recesses formed on a surface thereof, the surfaces of the sintered contact layer and the recesses being covered with a solid lubricant layer.
A method of producing a self-lubricating sintered sliding member composed of an iron-family metal substrate and a sintered contact layer that is formed on a sliding side of the iron-family metal substrate and made from a sintered contact material containing an iron-family material, the sintered contact layer having a solid lubricant layer formed on a surface thereof, the method comprising the steps of:
- forming protrusions on a surface of the sintered contact layer, and
- forming the solid lubricant layer on the surface of the sintered contact layer where the protrusions are formed.
A method of producing a self-lubricating sintered sliding member composed of an iron-family metal substrate and a sintered contact layer that is formed on a sliding side of the iron-family metal substrate and made from a sintered contact material containing an iron-family material, the sintered contact layer having a solid lubricant layer formed on a surface thereof, the method comprising the steps of:
- forming recesses on a surface of the sintered contact layer, and
- forming the solid lubricant layer on the surface of the sintered contact layer where the recesses are formed.
Dependencies are inferred from the claim text.