Metal product and preparation method thereof, and metal complex and preparation method thereof

Abstract

A metal product comprises a first metal layer and a second metal layer arranged on the surface of the first metal layer. The first metal layer comprises first holes, and the second metal layer includes an oxide layer. The invention further provides a preparation method of the metal product, which comprises the steps that a metal matrix is put into a first electrolyte, wherein the first electrolytecomprises an etching agent and a passivating agent, and the metal matrix comprises a first metal layer and a second metal layer arranged on the surface of the first metal layer; and a voltage is applied to form first holes in the surface of the first metal layer and an oxide layer on the surface of the second metal layer, thereby forming the metal product. The invention also provides a metal complex and a preparation method thereof. According to the preparation method, the first electrolyte containing the etching agent and the passivating agent is prepared, the oxide layer is formed on the surface of the second metal layer in the electrolysis process to prevent the second metal layer from being corroded, and the first holes are formed in the surface of the first metal layer.

Description

technical field [0001] The present application relates to the field of metal materials, in particular to a metal product and a preparation method thereof, a metal composite and a preparation method thereof. Background technique [0002] Portable consumer electronic products are used more and more in people's life. Consumers have higher and higher requirements on the appearance of electronic products and the performance of housings. The conventional casing forming process of electronic products generally forms a hole in a single metal piece, and then injects a material such as plastic into the hole to form a casing. However, the appearance and thickness of a single metal shell cannot meet the demand gradually. At present, two kinds of metal composite metal products are emerging for the shell of electronic products. Due to the different conductivity between the two metals, the potential difference between the two metals and the difference in conductivity, the traditional ele...

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Problems solved by technology

However, the appearance and thickness of a single metal shell can no longer meet the demand. At present, two kinds of metal composite metal products are emerging for the shell of electronic products.

Due to the different electrical conductivity between the two metals, the potential difference between the two metals and the different conductivity, the traditional electrochemical method will cause severe electrochemical polishing of the other metal when one of the metals forms holes. Its structure is destroyed, resulting in the destruction of the entire metal product, that is, it is difficult for traditional electrochemical methods to form suitable holes on the surface of one of the metal layers for the combination of the metal product and the material body placed on the surface of the metal product

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