Loading patent…
AssigneeDaido Metal Company Ltd.
InventorsTadashi Tanaka, Masaaki Sakamoto, Tohru Kato, Yoshiaki Sato
Estimating the term…
A multi-layered bearing having superior load-resistance comprises an aluminium base bearing alloy layer and a backing metal layer. The bearing alloy consists essentially of, by weight, 2-8% zinc, 0.1-8% silicon, 0.1-3% copper, 0.05-3% magnesium and the balance of aluminium. The bearing alloy is subjected to a solution treatment and an artificial aging treatment, and it has a hardness of Hv 70 or greater. The bearing alloy may contain at least one element selected from the following five elements of lead, manganese, vanadium, chromium and nickel, and may further contain strontium and/or titanium and boron. The hardness of the bearing alloy may be Hv 70 or higher by performing solution treatment on a bimetal at a temperature of 400.degree. C. or higher before the plastic working, and further by performing an artificial aging treatment thereon at a temperature of 250.degree. C. or lower.
A multi-layered bearing having superior load-resistance comprising an aluminium base bearing alloy layer and a backing metal layer, said bearing alloy consisting essentially of, by weight, 2-8% zinc, 0.1-8% silicon, 0.1-3% copper, 0.05-3% magnesium and the balance of aluminium, wherein said multi-layered bearing is a product of solution heat treatment at a temperature of at least 450.degree. C. and artificial aging treatment at a temperature of at most 250.degree. C., and wherein said bearing alloy layer has a hardness of at least Hv 71.
A multi-layered bearing having superior load-resistance comprising an aluminium base bearing alloy layer and a backing metal layer, said bearing alloy consisting essentially of, by weight, 2-8% zinc, 0.1-8% silicon, 0.1-3% copper, 0.05-3% magnesium, at least one element selected from the following five elements consisting of 0.1-3% lead, 0.1-2% manganese, 0.1-2% vanadium, 0.1-2% chromium, 0.1-3% nickel, and the balance of aluminium wherein said multi-layered bearing is a product of solution heat-treatment at a temperature of at least 450.degree. C. and artificial aging treatment at a temperature of at most 250.degree. C., and wherein said bearing alloy layer has a hardness of Hv 71 or higher.
A multi-layered bearing having superior load-resistance comprising an aluminium base bearing alloy layer and a backing metal layer, said bearing alloy consisting essentially of, by weight, 2-8% zinc, 0.1-8% silicon, 0.1-3% copper, 0.05-3% magnesium, at least one element selected from the elements consisting of 0.005-0.5% strontium, 0.01-0.2% titanium, 0.001-0.05% boron, and the balance of aluminium wherein said multi-layered bearing is a product of solution heat-treatment at a temperature of at least 450.degree. C. and artificial aging treatment at a temperature of at most 250.degree. C., and wherein said bearing alloy layer has a hardness of Hv 71 or higher.
A multi-layered bearing having superior load-resistance comprising an aluminium base bearing alloy layer and a backing metal layer, said bearing alloy consisting essentially of, by weight, 2-8zinc, 0.1-8% silicon, 0.1-3% copper, 0.05-3% magnesium, at least one element selected from the following five elements consisting of 0.1-3% lead, 0.1-2% manganese, 0.1-2% vanadium, 0.1-2% chromium, 0.1-3% nickel, and at least one element selected from the elements consisting of 0.005-0.5 strontium, 0.01-0.2 titanium, 0.001-0.05% boron, and the balance of aluminium wherein said multi-layered bearing is a product of solution heat-treatment at a temperature of at least 450.degree. C. and artificial aging treatment at a temperature of at most 250.degree. C., and wherein said bearing alloy layer has a hardness of Hv 71 or higher.
Dependencies are inferred from the claim text.