Laminated bearing material produced by thermokinetic plating
AssigneeGlyco-Metall-Werke Daelen & Loos GmbH
InventorsErich Hodes, Danilo Sternisa
Life of this patent
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Abstract
A bearing laminate and method of producing the same, wherein a metallic suspension alloy having a tendency to dissociate is thermokinetically applied as a coating to a substrate, such coating in its solid state becoming dissociated. The substrate and the applied coating are mechanically compressed after the application and solidification of the latter. The surface of the substrate which receives the suspension alloy coating is especially prepared, either as a rough surfaced base or else as an aluminum or aluminum alloy surface having a surface activation and grain structure that is produced by a brief heating to a temperature between 450.degree. and the melting point of the aluminum or aluminum alloy, such heating destroying and removing the aluminum oxide.
Claims24
A high bond-strength bearing laminate comprising, in combination:
- (a) a substrate member having on one side an interface on which there has been thermokinetically sprayed a metallic suspension alloy to form a solid bearing coating,
- (b) said coating comprising a solid suspension of different metallic components which are chemically dissociated in the coating with respect to each other,
- (c) said interface being disposed between the said substrate member and the said coating, and having a porous surface on a permanently roughened zone characterized by interstices located in that portion thereof to which the coating has been applied,
- (d) said coating having a substantially solid layer structure caused by its being pressed into intimate contact with the said porous surface of said roughened zone by means of mechanical force which reduces the thickness of the laminate, said force being applied simultaneously to the said substrate member and coating and causing small metallic particles of the coating to enter the pores of, and to more intimately contact the interface having the interstices of the roughened zone.
A high bond-strength bearing laminate comprising, in combination:
- (a) a substrate member having on one side an interface on which there has been thermokinetically sprayed a metallic suspension alloy to form a solid bearing coating,
- (b) said coating comprising a solid suspension of different metallic components which are chemically dissociated in the coating with respect to each other,
- (c) said interface being disposed between said substrate member and the said coating, and having a porous surface which is characterized by a de-oxidized zone containing aluminum which has a de-oxidized activation produced by its being subjected to heat at a temperature above 450.degree. C. and below the melting point of the aluminum while in the absence of oxygen,
- (d) said coating having a substantially solid layer structure caused by its being pressed against said de-oxidized zone by means of mechanical force which reduces the thickness of the laminate, said force being applied simultaneously to the said substrate member and coating and causing small metallic particles of the coating to enter the pores of, and to be bonded to the porous surface of the de-oxidized zone of the interface.
Dependencies are inferred from the claim text.