Housing and method for making the same
AssigneesHon Hai Precision Industry Co., Ltd., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
InventorsHsin-Pei CHANG, Wen-Rong CHEN, Huann-Wu CHIANG, Cheng-Shi CHEN, Yi-Chi CHAN, Xiao-Qiang CHEN
Life of this patent
Estimating the term…
Abstract
A housing is provided which includes an aluminum or aluminum alloy substrate, an aluminum layer and a corrosion resistant layer formed on the aluminum or aluminum alloy substrate in that order. The corrosion resistant layer is an Al—O—N layer. Then, Nd ions is implanted in the Al—O—N layer by ion implantation process. The atomic percentages of N and O in the Al—O—N gradient layer gradually increase from nearing the aluminum or aluminum alloy substrate to far away from it. The housing has a higher corrosion resistant. A method for making the housing is also provided.
Claims11
A housing, comprising:
- a substrate made of aluminum or aluminum alloy;
- an aluminum layer formed on the aluminum or aluminum alloy;
- a corrosion resistant layer formed on the aluminum layer;
- wherein the corrosion resistant layer is an Al—O—N gradient layer doped with Nd ions, the atomic percentages of N and O in the Al—O—N gradient layer gradually increase from the bottom of the layer near the aluminum or aluminum alloys substrate to the top of the layer away from aluminum or aluminum alloys substrate.
A method for surface treating aluminum or aluminum alloys, the method comprising the following steps of:
- providing a substrate made of aluminum or aluminum alloys;
- forming an aluminum layer on the substrate by physical vapor deposition;
- forming a corrosion resistant layer formed on the aluminum layer, the corrosion resistant layer is an Al—O—N gradient layer doped with Nd ions implanted by ion implantation process, the atomic percentages of N and O in the Al—O—N gradient layer gradually increase from the bottom of the layer near the aluminum or aluminum alloys substrate to the top of the layer away from aluminum or aluminum alloys substrate by physical vapor deposition.
Dependencies are inferred from the claim text.