Multilayer aluminum-base alloy slide member
AssigneeDaido Metal Company Ltd.
InventorsYukihiko Kagohara, Takeshi Hoshina, Hideo Ishikawa, Masaaki Sakamoto
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Abstract
A multilayer aluminum-base alloy bearing formed by bonding a bearing alloy layer made of an aluminum-base alloy to a steel back metal through an intermediate layer made of an aluminum-base alloy, the intermediate layer being composed of two layers, that is, a lower layer and an upper layer, the lower layer in contact with the steel back metal being lower in hardness than the upper layer. Since the lower layer is soft, it is excellent in bonding property for the back metal, and since the upper layer is hard, it withstands a load exerted on the bearing alloy layer.
Claims15
A multilayer aluminum-base alloy slide member formed by bonding a slide alloy layer made of an aluminum-base alloy to a back metal layer through intermediate layers made of an aluminum-base alloy, the intermediate layers being composed of:
- a first intermediate layer in contact with the back metal layer;
- and
- at least one second intermediate layer disposed toward the slide alloy layer from the first intermediate layer in contact with the back metal layer,
- at least one of said second intermediate layers, which are disposed toward the slide alloy layer from the first intermediate layer in contact with the back metal layer, being higher in hardness than the first intermediate layer in contact with the back metal layer, and
- wherein said first intermediate layer, which is in contact with the back metal layer, has a thickness that is 5% or more but less than 50% of the thickness of the entire intermediate layers.
A multilayer aluminum-base alloy slide member formed by bonding a slide alloy layer made of an aluminum-base alloy to a back metal layer through intermediate layers made of an aluminum-base alloy, the intermediate layers being composed of:
- a first intermediate layer in contact with the back metal layer;
- and
- at least one second intermediate layer disposed toward the slide alloy layer from the first intermediate layer in contact with the back metal layer;
- wherein said second intermediate layers, which are disposed toward the slide alloy layer from the first intermediate layer in contact with the back metal layer, are higher in hardness than the layer in contact with the back metal layer;
- and
- wherein said first intermediate layer, which is in contact with the back metal layer, has a thickness that is 5% or more but less than 50% of the thickness of the entire intermediate layers.
Dependencies are inferred from the claim text.