Method of making iron-electroplated aluminum materials
AssigneeNippon Platec Co., Ltd.
InventorsWataru Oikawa, Eiichi Takeuchi
Life of this patent
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Abstract
A method for making an aluminium material which is electroplated on its aluminum or aluminium alloy base with iron or an iron alloy containing 2-20 weight % of chromium, and which can be utilized as a new structural or functional material in various industrial fields. The material is characterized in having an inter-diffusion layer produced between the base and the plating and/or having such fine cracks produced in the plating which can reserve well machine oil, work well for painting it, and be impregnated with a resin for improving its wear resistance and so on.
Claims5
Method for making aluminum or aluminum alloy material electroplated with an iron alloy containing 2-20 weight % of chromium, which comprises:
- electroplating the material with the iron alloy containing 2-20 weight % of chromium to form an electroplated surface with cracks then,
- heat-treating the electroplated material at a temperature between about 450 and about 650.degree. C., producing an inter-diffusion layer at a boundary area between a surface of the material and the iron alloy electroplated on the surface, and
- succeedingly cooling the electroplated material.
Method for making an aluminum or aluminum alloy material electroplated with an iron alloy containing 2-20 weight % of chromium, which comprises;
- electroplating the material with the iron alloy containing 2-20 weight % of chromium to form an electroplated surface with cracks, and
- applying to the electroplated surface a thermoplastic resin for coating said surface of the material and impregnating the cracks therein.
Method for making an aluminum or aluminum alloy material electroplated with an iron alloy containing 2-20 weight % of chromium, which comprises;
- electroplating the material with the iron alloy containing 2-20 weight % of chromium to form an electroplated surface with cracks, and
- applying to and coating the electroplated surface with a thermosetting resin mixed with lubricating solid particles for impregnating the cracks in said surface.
Dependencies are inferred from the claim text.